A device for replacing a roller cutter of an inclined shaft tunneling machine

Abstract

The utility model belongs to the technical field of tunneling equipment, specifically provides a kind of inclined shaft tunneling machine hobbing cutter replacement device, including base and the displacement component being set on base, sliding platform and drive component;Base is fixedly installed on cutter head disc body;Displacement component is connected with hobbing cutter and central duplex hobbing cutter;Hobbing cutter and central duplex hobbing cutter are slidably installed on sliding platform;Drive component is detachably connected with hobbing cutter and central duplex hobbing cutter, for driving hobbing cutter and central duplex hobbing cutter displacement to replacement position or the cutter box of tunneling machine.The utility model utilizes the space of the cutter box of cutter head in inclined shaft tunneling machine and the front space of cutter head close to tunneling face as the space of tool changing device, to provide longer transmission stroke while avoiding tool changing device concentration, improve the utilization of cutter head limited space, reduce the difficulty of small space operation in personnel cabin, improve tool changing efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunneling equipment and relates to a cutter replacement device for an inclined shaft tunneling machine. Background Technology

[0002] Pumped storage is currently the most mature large-scale energy storage technology, and pumped storage power stations often use inclined shafts for their water conveyance tunnels. Inclined shaft tunneling machines (TBMs), as the most advanced equipment for inclined shaft tunnel construction, offer advantages such as safety, environmental friendliness, high automation, labor savings, and fast construction speed. However, when changing cutterhead cutters in inclined shaft tunnels, especially bottom-up inclined shaft tunnels, the weight of the cutterhead and its tilt prevent the cutterhead from being vertically hoisted into the cutterhead hole using traditional methods. Furthermore, the limited internal space of the cutterhead due to the structural requirements of inclined shaft construction also significantly impacts the cutterhead changing operation. For personnel safety reasons, cutterhead changing in inclined shafts does not involve personnel working at the front face of the cutterhead; the change is performed only inside the tunnel chamber. Therefore, traditional TBM cutterhead changing methods are less safe, convenient, and applicable compared to the needs of bottom-up inclined shaft cutterhead changing.

[0003] With the widespread use of inclined shaft tunneling machines in pumped storage projects, the ability to smoothly replace the cutterhead cutters greatly affects the labor intensity of the personnel changing the cutters and the overall tunneling efficiency of the machine. Therefore, developing a convenient and efficient cutterhead replacement device for inclined shaft tunneling machines has become an urgent problem to be solved. Utility Model Content

[0004] This utility model provides a cutter replacement device for an inclined shaft tunneling machine, used to replace the cutter assembly in the inclined shaft tunneling machine; it includes a base and a displacement component, a sliding platform and a drive component disposed on the base; The cutter assembly includes cutter rollers, cutter roller holders, and a central double-section cutter; the cutter rollers are mounted on the cutter roller holders, and both the cutter roller holders and the central double-section cutter are mounted on the cutterhead body of the inclined shaft tunneling machine; The base is fixedly installed on the cutter head body; The displacement component is connected to the hob and the central double hob; The hob and the central double hob are slidably mounted on the sliding platform; The drive assembly is detachably connected to the cutter head and the central double cutter head, and is used to drive the cutter head and the central double cutter head to a different position or into the cutter box of the tunneling machine.

[0005] Furthermore, the displacement assembly includes a pulley strut, a hob travel rail, and a center cutter travel rail; The pulley support rod includes a support rod and a first pulley connected to each other; the end of the support rod away from the first pulley is fixedly connected to the base; the hob travel slide rail connects the base and the hob cutter holder, and is used to drive the hob to move relative to the base; the center cutter travel slide rail connects the base and the center double hob, and is used to drive the center double hob to move relative to the base. The hob travel slide rail is configured as a first slide rail slider structure, in which the first slide rail part is fixedly connected to the base, and the first slider part of the first slide rail slider structure is fixedly connected to the hob cutter holder. The central cutter travel slide rail is configured as a second slide rail slider structure. The second slide rail part of the second slide rail slider is fixedly connected to the base, and the second slider part of the second slide rail slider structure is fixedly connected to the central double hobbing cutter.

[0006] Furthermore, the first pulley includes a connecting seat, a pulley body, and a pulley cover plate; The connecting seat is used to connect to the support rod; The pulley body is rotatably mounted on the connecting seat; The pulley cover plate is detachably installed on the connecting seat and sleeved on the pulley body.

[0007] As a further embodiment of this utility model, in addition to the above-described structure, the inclined shaft tunneling machine cutter replacement device also includes a hinged support rod. The hinged strut includes a second pulley, a first hinged rod, a second hinged rod, and a hinge pin; one end of the first hinged rod and one end of the second hinged rod are connected to each other by the hinge pin, and the second hinged rod can rotate around the hinge pin; a second pulley is installed on the ends of the first hinged rod and the second hinged rod that are far apart from each other.

[0008] Furthermore, a limiting block is provided on the first hinge rod to limit the rotation range of the second hinge rod.

[0009] Furthermore, a reinforcing rib is provided on the first hinge rod, and the reinforcing rib is fixedly connected to the base.

[0010] Furthermore, a limiting rod is also provided on the first hinge rod; the limiting rod is used to limit the second hinge rod.

[0011] Furthermore, the drive component includes a pull rope system; The rope pulling system includes a steel wire rope, a steel wire mesh bag, and a rope pulling power source; the two ends of the steel wire rope are respectively connected to the steel wire mesh bag and the rope pulling power source; The wire rope passes around the pulley body and connects to the cutter head, or passes around the second pulley and connects to the central double cutter head, so as to drive the cutter head and the central double cutter head to a different position or into the cutter box of the tunneling machine.

[0012] Furthermore, the sliding platform includes a platform panel and a platform base plate; The platform base plate is welded to the cutter head body and is used to install the platform panel; The platform panel is used to provide a platform surface for the horizontal sliding of the hob.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model provides a cutter replacement device for a inclined shaft tunneling machine. By utilizing the space of multiple cutter boxes in the cutterhead of the inclined shaft tunneling machine and the front space of the cutterhead near the tunnel face as the space for the cutter replacement device, it provides a longer transmission stroke while avoiding the concentration of the cutter replacement device, improving the utilization rate of the limited space of the cutterhead, reducing the difficulty of operation in the small space of the personnel cabin, and improving the cutter replacement efficiency; and by setting a displacement component, it can simultaneously meet the replacement needs of the cutter structures located in different parts.

[0014] (2) In this utility model, the roller assembly is driven by using a steel wire rope in conjunction with a pulley mechanism (first pulley and second pulley). Based on the flexible characteristics of the steel wire rope, it is easy to store and highly convenient. Moreover, the required shape (space occupation) and material requirements are extremely low when providing a higher safety margin for the transmission power and transmission stroke. It has the characteristics of high reliability and portability.

[0015] (3) This utility model can adapt to the replacement environment of all front roller cutters and edge roller cutters of the inclined shaft cutterhead, and has strong versatility; and has the characteristics of simplified overall transmission and transportation structure design, low failure rate and convenient maintenance.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of a cutterhead replacement device for an inclined shaft tunneling machine in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of a cutter replacement device for an inclined shaft tunneling machine in Embodiment 1 of this utility model when replacing the front cutter. Figure 3 yes Figure 2 A partial schematic diagram in the X direction; Figure 4 yes Figure 1 A schematic diagram of the structure after the first pulley is hidden by the pulley cover plate; Figure 5 yes Figure 1 A cross-sectional view of the first pulley in the middle; Figure 6 This is a schematic diagram of a cutter replacement device for an inclined shaft tunneling machine in Embodiment 2 of this utility model when the cutter is being replaced on the outer perimeter. Figure 7 yes Figure 6 A partial schematic diagram in the Y direction; Figure 8 yes Figure 6 A partial schematic diagram in the Z-direction; Figure 9 This is a schematic diagram of a cutter replacement device for an inclined shaft tunneling machine in Embodiment 3 of this utility model when the central double cutter is being replaced; Figure 10 yes Figure 9 Schematic diagram of the hinged strut structure; Figure 11 This is another structural schematic diagram of a cutterhead replacement device for an inclined shaft tunneling machine in Embodiment 2 of this utility model.

[0018] in: 1. Pulley support rod; 1.1. Support rod; 1.2. First pulley; 1.21. Connecting seat; 1.22. Pulley cover plate; 2. Pull rope system; 3. Roller cutter travel slide rail; 4. Base; 5. Roller cutter; 6. Roller cutter holder; 7. Cutter disc body; 8. Sliding platform; 9. Hinge support rod; 9.1. First hinge rod; 9.2. Second hinge rod; 9.3. Hinge pin; 9.4. Limiting rod; 9.41. Limiting pin; 9.42. Mounting bolt hole; 10. Center cutter travel slide rail; 11. Center double roller cutter. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this utility model clearer and easier to understand, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of this utility model are all in a simplified form and use non-precise proportions, and are only used to facilitate and clearly assist in illustrating the implementation of this utility model; the "several" mentioned in this utility model are not limited to the specific number shown in the examples in the drawings; the directions or positional relationships indicated by "front," "middle," "rear," "left," "right," "up," "down," "top," "bottom," and "middle" mentioned in this utility model are all based on the directions or positional relationships shown in the accompanying drawings of this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, nor should they be construed as limitations on this utility model.

[0020] Example 1: See Figures 1 to 5As shown, when the cutter replacement device for a sloping shaft tunneling machine provided by this utility model is used to replace the cutter 5 located at the front of the tunnel section, it includes a base 4 and a displacement component, a cutter travel slide rail 3 and a drive component disposed on the base 4. The cutter assembly includes a cutter 5 and a cutter holder 6; the cutter 5 is mounted on the cutter holder 6, and the cutter holder 6 is mounted on the cutterhead body 7 in the inclined shaft tunneling machine; The base 4 is fixedly installed on the cutter head body 7; The displacement component is connected to the hob 5; The hob 5 is slidably mounted on the hob travel rail 3; The drive assembly is detachably connected to the cutter 5 and is used to drive the cutter 5 to a different position or into the cutter box of the tunneling machine.

[0021] Preferably, the displacement assembly includes a pulley strut 1; The pulley support rod 1 includes a support rod 1.1 and a first pulley 1.2 connected to each other; the support rod 1.1 is preferably a long straight rod, and the end of the support rod 1.1 away from the first pulley 1.2 is fixedly connected to the base 4; the hob travel slide rail 3 connects the base 4 and the hob cutter holder 6, and is used to drive the hob cutter holder 6 to move relative to the base 4; the central cutter travel slide rail 10 connects the base 4 and the central double hob cutter 11, and is used to drive the central double hob cutter 11 to move relative to the base 4. The hob travel slide rail 3 is configured as a first slide rail slider structure, the first slide rail part of the first slide rail slider is fixedly connected to the base 4, and the first slider part of the first slide rail slider structure is fixedly connected to the hob cutter holder 6. More preferably, the first pulley 1.2 includes a connecting seat 1.21, a pulley body, and a pulley cover plate 1.22; The connecting seat 1.21 is provided with a plurality of first mounting holes arranged in a circumferential array. The connecting seat 1.21 is bolted to the support rod 1.1 by bolts, so that the pulley 1.2 can be rotated to any angle and mounted on the support rod 1.1, thereby allowing the orientation of the wire rope 2.1 to be adjusted to adapt to different cutter positions. For example, when changing the cutter on the outer periphery, the mounting pulley 1.2 is rotated to make the wire rope 2.1 face obliquely downward. The pulley body is rotatably mounted on the connecting seat 1.21; The pulley cover plate 1.22 is detachably installed on the connecting seat 1.21 and sleeved on the pulley body; since the wire rope 2.1 has connection points at both ends or is fixedly connected to the wire mesh bag 2.2 or the rope power source 2.3, the detachable pulley cover plate 1.22 facilitates the correct and safe placement of the wire rope 2.1 in the pulley groove and prevents it from deviating and falling out during operation.

[0022] Preferably, the hob travel rail 3 is mounted on the base 4; and the hob travel rail 3 is a track composed of two steel pipes for the hob to slide on, and its shape matches the hob holder 6 to facilitate the smooth feeding of the hob 5 into the tool box.

[0023] Preferably, the drive assembly includes a pull rope system 2; The rope pulling system 2 includes a steel wire rope 2.1, a steel wire mesh bag 2.2, and a rope pulling power source 2.3; the two ends of the steel wire rope 2.1 are respectively connected to the steel wire mesh bag 2.2 and the rope pulling power source 2.3; The wire rope 2.1 passes around the pulley body and is connected to the cutter head 5, or passes around the second pulley and is connected to the central double cutter head 11, so as to drive the cutter head 5 and the central double cutter head 11 to a different position or into the cutter box of the tunneling machine.

[0024] More preferably, the wire mesh bag 2.2 is woven from fine steel wire and is used for transporting knives; the power source 2.3 for pulling the rope can be a hoist, hydraulic cylinder, or other power supply device.

[0025] Furthermore, the specific process of replacing the cutter head 5 at the front of the tunnel section using the aforementioned cutter head replacement device for the inclined shaft tunneling machine is as follows: 1. Prepare two pulley support rods 1. Select another tool box hole directly above the tool box to install one pulley support rod 1, and pull the steel wire rope 2.1 through the tool box hole to return to the tool disc compartment; 2. Fit the second pulley support rod 1 onto the steel wire rope 2.1 and install it in the hole of the tool box to be replaced; 3. Install the hob travel slide rail 3 into the hole of the tool change box; 4. Cover the cutter head with the wire mesh bag 2.2, connect it to the wire rope 2.1, and connect the other end to the power source 2.3 for pulling the rope; 5. Pull the hob to the tool box mounting position, lock the hob, and then gradually disassemble the above-mentioned device; the tool disassembly is the reverse of the above sequence.

[0026] Example 2: See Figures 6 to 8 As shown, when the cutter replacement device for a sloping shaft tunneling machine provided by this utility model is used to replace the cutter 5 located at the outer periphery of the tunnel section, it includes a base 4 and a displacement component, a sliding platform 8 and a drive component disposed on the base 4. The hob 5 is slidably mounted on the sliding platform 8; The structure and connection relationship of the displacement component and the drive component are shown in Example 1.

[0027] Preferably, the sliding platform 8 includes a platform panel 8.1 and a platform base plate 8.2; The platform base plate 8.2 is welded to the cutter head body 7 and is used to install the platform panel 8.1; The platform panel 8.1 is used to provide a platform surface for the horizontal sliding of the hob 5.

[0028] More preferably, the platform panel 8.1 is arranged in a block-like manner.

[0029] Furthermore, when using a cutter replacement device for an inclined shaft tunneling machine in this embodiment to replace the cutter 5 located at the outer perimeter of the tunnel section, the specific process is as follows: Based on Example 1, the first pulley 1.2 is disassembled and installed in advance so that the wire rope 2.1 can adapt to the orientation angle of the replaced side cutter box; secondly, the installation steps of the roller travel slide rail 3 are replaced by the installation of the side cutter platform 8; it is worth noting that, in order to adapt to the replacement of outer peripheral roller cutters with different structures, the second pulley support rod 1 can be designed as an additional shortened version, or the pulley support rod 1 itself can be set as a telescopic structure.

[0030] As a further embodiment, in addition to the structure described above, see [link to other embodiments]. Figure 11 As shown, when the cutter replacement device for a sloping shaft tunneling machine provided by this utility model is used to replace the cutter 5 located at the outer periphery of the tunnel section, when the space between the cutter seat ribs 7.1 in the existing tunneling machine is sufficient, the cutter replacement device for the sloping shaft tunneling machine includes a first pulley 1.2, a rope system 2, and a side cutter platform 8. The first pulley 1.2 is installed on the inclined shaft tunneling machine. The wire rope in the rope system 2 passes around the first pulley 1.2 and is connected to the cutter head 5 so that the cutter head 5 can be replaced through the rope system 2.

[0031] Example 3: See Figure 9 and Figure 10 As shown, when the roller cutter replacement device for a sloping shaft tunneling machine provided by this utility model is used to replace the central double roller cutter 11 in the tunnel section, it includes a base 4 and a displacement component, a central cutter travel slide rail 10, a drive component and a hinged support rod 9 disposed on the base 4. The hinged support rod 9 includes a second pulley, a first hinge rod 9.1, a second hinge rod 9.2, and a hinge pin 9.3; one end of the first hinge rod 9.1 and one end of the second hinge rod 9.2 are connected to each other by the hinge pin 9.3, and the second hinge rod 9.2 can rotate around the hinge pin 9.3; a second pulley is installed on the ends of the first hinge rod 9.1 and the second hinge rod 9.2 that are far apart from each other; The central cutter travel slide rail 10 is configured as a second slide rail slider structure. The second slide rail part of the second slide rail slider is fixedly connected to the base 4, and the second slider part of the second slide rail slider structure is fixedly connected to the central double hobbing cutter 11.

[0032] The structure and connection relationship of the displacement component and the drive component are shown in Example 1.

[0033] Preferably, a limiting block 9.11 is provided on the first hinge rod 9.1 to limit the rotation range of the second hinge rod 9.2.

[0034] Preferably, the first hinge rod 9.1 is further provided with a reinforcing rib, which is fixedly connected to the base 4.

[0035] Preferably, a limiting rod 9.4 is also provided on the first hinge rod 9.1; the limiting rod 9.4 is installed at the tail of the first hinge rod 9.1, and provides a pin for limiting the second hinge rod 9.2, so that the second hinge rod 9.2 can be fixed and ensure that it provides a force-bearing structure for the second pulley; since personnel operation can only be carried out in the cutter head chamber, and the hinge support rod 9 extends to the front of the cutter head when working, the limiting rod 9.4 is designed as a long rod, with a limiting pin 9.41 at the head and a mounting bolt hole 9.42 at the tail where personnel can operate.

[0036] This utility model features an optimized design for the hinged support rod 9, which is fully installed within the tool box above the tool change box to accommodate different tool positions, such as center double hobbing cutter changes. The structure of the center double hobbing cutter holder differs from that of the front single-edge hobbing cutter holder. It can utilize the aforementioned two-piece pulley support rod 1 method, or preferably the hinged support rod 9 method. The advantage is that it eliminates the need for additional welding of the base 4 to the back of the center tool holder. The working method is described in the appendix. Figure 6 The hinge support rod 9 is designed with hinge rod A9.1 and hinge rod B9.2. When combined, they pass through the upper tool box for installation and automatically unfold after reaching the front of the tool head. They are fixed by limit block 9.11 and limit rod 9.4. The limit rod 9.4 is designed as a long rod to facilitate operation and installation by personnel inside the tool head compartment.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutter replacement device for an inclined shaft tunneling machine, used for replacing the cutter assembly in an inclined shaft tunneling machine; characterized in that, Includes a base (4) and a displacement component, a sliding platform (8) and a drive component disposed on the base (4); The cutter assembly includes a cutter (5), a cutter holder (6), and a central double cutter (11); the cutter (5) is mounted on the cutter holder (6), and the cutter holder (6) and the central double cutter (11) are both mounted on the cutterhead body (7) in the inclined shaft tunneling machine; The base (4) is fixedly installed on the cutter head body (7); The displacement assembly is connected to the hob (5) and the central double hob (11); The hobbing cutter (5) and the central double hobbing cutter (11) are slidably mounted on the sliding platform (8); The drive assembly is detachably connected to the cutter head (5) and the central double cutter head (11) and is used to drive the cutter head (5) and the central double cutter head (11) to a different position or into the cutter box of the tunneling machine.

2. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 1, characterized in that, The displacement assembly includes a pulley strut (1), a hob travel rail (3), and a center cutter travel rail (10). The pulley support rod (1) includes a support rod (1.1) and a first pulley (1.2) connected to each other; the end of the support rod (1.1) away from the first pulley (1.2) is fixedly connected to the base (4); the hob travel slide rail (3) connects the base (4) and the hob cutter holder (6) and is used to drive the hob cutter (5) to move relative to the base (4); the center cutter travel slide rail (10) connects the base (4) and the center double hob cutter (11) and is used to drive the center double hob cutter (11) to move relative to the base (4); The hob travel slide rail (3) is configured as a first slide rail slider structure, the first slide rail part in the first slide rail slider is fixedly connected to the base (4), and the first slider part in the first slide rail slider structure is fixedly connected to the hob cutter holder (6). The central cutter travel slide rail (10) is configured as a second slide rail slider structure. The second slide rail part in the second slide rail slider is fixedly connected to the base (4), and the second slider part in the second slide rail slider structure is fixedly connected to the central double hobbing cutter (11).

3. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 2, characterized in that, The first pulley (1.2) includes a connecting seat (1.21), a pulley body, and a pulley cover plate (1.22). The connecting seat (1.21) is used to connect to the support rod (1.1); The pulley body is rotatably mounted on the connecting seat (1.21); The pulley cover plate (1.22) is detachably installed on the connecting seat (1.21) and sleeved on the pulley body.

4. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 3, characterized in that, It also includes a hinged strut (9); The hinged support rod (9) includes a second pulley, a first hinge rod (9.1), a second hinge rod (9.2), and a hinge pin (9.3); one end of the first hinge rod (9.1) and one end of the second hinge rod (9.2) are connected to each other by the hinge pin (9.3), and the second hinge rod (9.2) can rotate around the hinge pin (9.3); a second pulley is installed on the ends of the first hinge rod (9.1) and the second hinge rod (9.2) that are far apart from each other.

5. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 4, characterized in that, A limiting block (9.11) is provided on the first hinge rod (9.1) to limit the rotation range of the second hinge rod (9.2).

6. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 5, characterized in that, A reinforcing rib is also provided on the first hinge rod (9.1), and the reinforcing rib is fixedly connected to the base (4).

7. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 6, characterized in that, A limiting rod (9.4) is also provided on the first hinge rod (9.1); the limiting rod (9.4) is used to limit the second hinge rod (9.2).

8. The cutterhead replacement device for an inclined shaft tunneling machine according to any one of claims 4-7, characterized in that, The drive component includes a pull rope system (2); The rope pulling system (2) includes a steel wire rope (2.1), a steel wire mesh bag (2.2), and a rope pulling power source (2.3); the two ends of the steel wire rope (2.1) are respectively connected to the steel wire mesh bag (2.2) and the rope pulling power source (2.3); The wire rope (2.1) passes around the pulley body and is connected to the cutter head (5) or passes around the second pulley and is connected to the central double cutter head (11) to drive the cutter head (5) and the central double cutter head (11) to a different position or into the cutter box of the tunneling machine.

9. The cutterhead replacement device for an inclined shaft tunneling machine according to claim 8, characterized in that, The sliding platform (8) includes a platform panel (8.1) and a platform base plate (8.2). The platform base plate (8.2) is welded to the cutter head body (7) for mounting the platform panel (8.1). The platform panel (8.1) is used to provide a platform surface for the horizontal sliding of the hob (5).

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