Tunneling head temporary replacement supporting device for tunneling

Abstract

The utility model relates to the technical field of heading machines, and discloses a supporting device for temporary replacement of a heading head for heading, which adopts an independent pedestal type working structure, depends on a movable pedestal as a working displacement supporting structure, and has better moving convenience and use flexibility compared with traditional hoisting equipment. An independent cylinder type working driving structure is adopted, lifting driving cylinders are used for conducting lifting driving on the lifting top base so as to control lifting displacement of the tunneling head, two sets of independent butt joint driving cylinders are arranged on the upper portion of the lifting top base, and the butt joint driving cylinders are matched with the supporting base to lift and support the lower portion of the tunneling head; during butt-joint work, the butt-joint inclination angle of the loaded heading head can be accurately controlled through jacking control, butt-joint positioning work of the heading head can be conveniently and rapidly completed in cooperation with movable supporting of the movable pedestal, the disassembly and assembly operation difficulty and consumed working hours of the heading head can be greatly reduced through supporting assistance, and improvement of the maintenance work efficiency of the heading head is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of tunneling machine technology, specifically to a temporary replacement support device for tunneling heads. Background Technology

[0002] Tunnel boring machines (TBMs) are machines used to excavate tunnels in flat ground. They can be divided into ordinary TBMs and tunnel boring machines (TBMs) according to the different objects they work on. TBMs are a type of high-efficiency hard rock tunneling equipment. They use a high-speed rotating excavator head to break the walls of mines or tunnels, thereby realizing the excavation work in the mining or tunneling process. They are now widely used in transportation, mining, tunnel construction and other fields.

[0003] The tunneling work of a tunneling machine mainly relies on the tunneling head installed at the front. As the main working component of the tunneling machine, the tunneling head needs to be disassembled, maintained, and replaced after a period of operation to ensure its working stability. Due to the large size and mass of the tunneling head, the disassembly and assembly of the tunneling head often require the assistance of hoisting equipment. Due to site limitations, the layout and use of hoisting equipment is very inconvenient, and due to the poor controllable precision of hoisting, the docking and calibration operation is very laborious when docking and installing the tunneling head, which requires a long installation time and seriously affects the installation efficiency of the tunneling head. Therefore, a temporary replacement support device for the tunneling head is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a temporary replacement support device for a tunneling head to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a temporary replacement support device for a tunneling head, comprising a platform mechanism and a docking mechanism for replacing the support of the tunneling head. The platform mechanism includes a movable platform, a lifting top, a lifting drive cylinder, casters, and a support drive cylinder. The lifting top is movably and vertically mounted on the upper part of the movable platform under the drive of the lifting drive cylinder. The casters and the support drive cylinder are both mounted on the lower part of the movable platform.

[0006] The docking mechanism includes a docking drive cylinder, a first support base, and a second support base. The docking drive cylinders are arranged in pairs, and the first support base and the second support base are respectively installed on the drive ends of the two docking drive cylinders.

[0007] Preferably, the casters are installed at the four corners of the bottom of the mobile platform, the support drive cylinders are arranged in pairs, and the two sets of support drive cylinders are symmetrically installed on both sides of the mobile platform, and the push rod end of the support drive cylinder is equipped with a support plate seat.

[0008] Preferably, lifting guide columns are fixedly installed at the four lower corners of the aforementioned lifting top seat, and the lifting guide columns are movably inserted into the inner side of the guide holes provided on the upper part of the movable platform.

[0009] Preferably, the aforementioned lifting drive cylinder is fixedly installed inside the mounting hole provided in the middle of the movable platform, and the push rod end of the lifting drive cylinder is fixedly connected to the bottom center of the lifting top seat.

[0010] 5. A temporary replacement support device for a tunneling head according to claim 4, characterized in that: a moving pusher is fixedly installed at the rear of the moving platform, a power supply box is provided below the moving pusher, and an operation panel is fixedly installed at the center of the side of the moving platform.

[0011] Preferably, the two sets of docking drive cylinders are fixedly installed on the top sides of the lifting top seat in a collinear manner. The lower parts of the first support seat and the second support seat are fixedly connected to the push rod ends of the two docking drive cylinders respectively. The lower parts of both sides of the first support seat and the second support seat are fixedly installed with strap mounting ring seats.

[0012] Preferably, a central bracket is fixedly installed in the middle of the two sets of docking drive cylinders by bolts, and side brackets are fixedly installed on both sides of the docking drive cylinder by bolts. A limit guide seat is fixedly installed on the upper part of the cylinder of the docking drive cylinder by bolts. The push rod of the docking drive cylinder moves through the limit guide seat. A guide groove is provided on the side of the push rod of the docking drive cylinder. The guide groove is slidably engaged with the protrusion in the middle of the limit guide seat.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This device adopts an independent platform-type working structure, relying on a movable platform as the displacement support structure for operation. Its compact structure and flexible movement offer better mobility and operational flexibility compared to traditional hoisting equipment. It also employs an independent cylinder-type working drive structure, using a lifting drive cylinder to drive the lifting top seat for controlling the lifting displacement of the tunneling head. Two independent docking drive cylinders are installed on the upper part of the lifting top seat. These cylinders, in conjunction with the support base, support the lower part of the tunneling head. During docking, the docking angle of the loaded tunneling head can be precisely controlled through jacking control. Combined with the movable support of the platform, the docking and positioning of the tunneling head can be completed conveniently and quickly. The support assistance significantly reduces the difficulty and time spent on disassembling and assembling the tunneling head, thus improving the efficiency of tunneling head maintenance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall working three-dimensional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall front three-dimensional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall rear three-dimensional structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the working and mounting structure of the docking drive cylinder of this utility model;

[0020] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure of region A in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Movable platform; 2. Lifting top seat; 3. Lifting drive cylinder; 4. Casters; 5. Support drive cylinder; 6. Lifting guide column; 7. Movable pusher; 8. Power supply box seat; 9. Control panel; 10. Docking drive cylinder; 11. First support seat; 12. Second support seat; 13. Strap mounting ring seat; 14. Side bracket; 15. Central bracket; 16. Limiting guide seat; 17. Guide groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0024] Example

[0025] Please see Figure 1-5 This utility model provides a technical solution: a temporary replacement support device for a tunneling head, comprising a platform mechanism and a docking mechanism for replacing the support of the tunneling head. The platform mechanism is used for lifting and moving the support of the tunneling head. The platform mechanism includes a movable platform 1, a lifting top seat 2, a lifting drive cylinder 3, casters 4, and a support drive cylinder 5, as shown in the attached figure. Figure 1 As shown, the casters 4 and the support drive cylinder 5 are both installed on the lower part of the mobile platform 1. The casters 4 are double-wheeled universal support wheels, which have good support and steering capabilities. The casters 4 are installed at the four corners of the bottom of the mobile platform 1, which facilitates the movement and adjustment of the device. It adopts an independent platform-type working structure, relying on the mobile platform 1 as the displacement support structure for the work. The structure is compact and flexible to move. Compared with traditional hoisting equipment, it has better mobility and flexibility of use. The support drive cylinder 5 is a miniature servo electric cylinder. The support drive cylinders 5 are set in pairs. The two sets of support drive cylinders 5 are symmetrically installed on both sides of the mobile platform 1. The push rod end of the support drive cylinder 5 is equipped with a support plate seat. After the device is positioned, the support plate seat is driven to move down by the support drive cylinder 5 to provide fixed-point support and limit for the device.

[0026] The lifting top seat 2 is movably lifted and installed on the upper part of the movable platform 1 under the drive of the lifting drive cylinder 3, as shown in the attached figure. Figure 4 As shown, in order to improve the lifting stability of the lifting top seat 2, lifting guide columns 6 are fixedly installed at the four corners of the lower part of the lifting top seat 2. The lifting guide columns 6 are movably inserted into the inner side of the guide insertion hole provided on the upper part of the movable platform 1, which can provide guiding support for the movement of the lifting top seat 2. The lifting drive cylinder 3 is a servo electric cylinder. The lifting drive cylinder 3 is fixedly installed inside the mounting hole provided in the middle of the movable platform 1. The push rod end of the lifting drive cylinder 3 is fixedly connected to the bottom middle of the lifting top seat 2. The lifting drive cylinder 3 can drive the lifting top seat 2 to perform lifting displacement, thereby realizing the height support adjustment of the tunneling head.

[0027] The docking mechanism is used for lifting and docking the tunneling head. The docking mechanism includes a docking drive cylinder 10, a first support base 11, and a second support base 12. The docking drive cylinder 10 is a servo electric cylinder, as shown in the attached diagram. Figure 3As shown, the docking drive cylinders 10 are arranged in pairs. The two sets of docking drive cylinders 10 are fixedly installed on the top sides of the lifting top seat 2 in a collinear configuration. The lower parts of the first support seat 11 and the second support seat 12 are fixedly connected to the push rod ends of the two docking drive cylinders 10, respectively. The upper parts of the first support seat 11 and the second support seat 12 are provided with arc-shaped concave docking slots, which can respectively dock and support the lower front and rear parts of the tunneling head. The lifting drive cylinder 3 is used to drive the lifting top seat 2 for lifting displacement control of the tunneling head. Two independent sets of cylinders are provided on the upper part of the lifting top seat 2. The docking drive cylinder 10, together with the support base, supports the lower part of the tunneling head. During docking, the docking angle of the loaded tunneling head can be precisely controlled by the lifting control. With the moving support of the moving platform 1, the docking and positioning of the tunneling head can be completed quickly and easily. The support assistance can greatly reduce the difficulty and time consumption of disassembly and assembly of the tunneling head, and improve the efficiency of tunneling head maintenance. In order to facilitate the connection and installation of safety straps, strap installation ring seats 13 are fixedly installed on the lower part of both sides of the first support base 11 and the second support base 12.

[0028] To improve the support stability of the docking drive cylinder block 10, as shown in the attached... Figure 4 As shown, a central bracket 15 is bolted to the middle of the two sets of docking drive cylinder bodies 10, and side brackets 14 are bolted to both sides of the docking drive cylinder body 10. To prevent axial deflection of the first support seat 11 and the second support seat 12, a limiting guide seat 16 is bolted to the upper part of the cylinder body of the docking drive cylinder body 10. The push rod of the docking drive cylinder body 10 moves through the limiting guide seat 16, as shown in the attached figure. Figure 5 As shown, a guide groove 17 is provided on the side of the push rod of the docking drive cylinder 10. The guide groove 17 is slidably engaged with the protrusion in the middle of the limiting guide seat 16. The groove engagement and limiting can prevent the first support seat 11 and the second support seat 12 from axially deflecting, which greatly improves the working reliability of the device.

[0029] To facilitate the displacement and pushing of the device, see attached... Figure 3 As shown, a mobile pusher 7 is fixedly installed at the rear of the mobile platform 1. In order to provide driving power, a power supply box 8 is provided below the mobile pusher 7. The power supply box 8 is fixed to the rear of the mobile platform 1. The power supply box 8 integrates a battery pack and a drive control unit, which can provide power to drive the operation of each cylinder. In order to facilitate the operation control of the device, an operation panel 9 is fixedly installed in the middle of the side of the mobile platform 1.

[0030] The working principle or structural principle is as follows: During operation, the boom position of the tunneling machine is lowered by operation, causing the tunneling head to descend to the disassembly height. Then, the device is moved below the tunneling head by the moving pusher 7, initially completing the device's position calibration. Next, controlled by the operation panel 9, the lifting drive cylinder 3 drives the lifting top seat 2 to move upward. During the upward movement, the device position is adjusted so that the upper support seat slowly contacts and supports the lower part of the tunneling head. Then, by controlling the extension length of the two sets of docking drive cylinders 10, the first support seat 11 and the second support seat 12 are stably contacted and supported by the lower part of the tunneling head. Finally, the support drive cylinder 5 operates, using the lifting support with respect to the ground to support the moving platform 1. After the support is limited, the docking drive cylinder 10 is slightly lifted to increase the stability of the lifting. After that, the safety strap is installed through the strap mounting ring seat 13, and the tunneling head is fixedly connected to the support seat through the safety strap. Then, the limiting structure of the tunneling head is removed, the device is unlocked, and the tunneling head is separated from the tunneling machine by moving backward, completing the disassembly of the tunneling head. After maintenance, the device is moved to the bottom of the swing arm of the tunneling machine. Then, the docking position and installation height of the tunneling head are adjusted by moving and lifting. Then, the docking angle of the tunneling head is adjusted by controlling the extension of the two sets of docking drive cylinders 10. Then, the tunneling head is docked with the docking interface on the swing arm side of the tunneling machine by moving forward, completing the installation of the tunneling head.

[0031] In summary, this device adopts an independent platform-type working structure, relying on the movable platform 1 as the displacement support structure for work. The structure is compact and flexible, offering better mobility and operational flexibility compared to traditional hoisting equipment. Furthermore, it employs an independent cylinder-type working drive structure, utilizing the lifting drive cylinder 3 to drive the lifting top seat 2 for controlling the lifting displacement of the tunneling head. Two independent docking drive cylinders 10 are installed on the upper part of the lifting top seat 2. These cylinders, in conjunction with the support base, support the lower part of the tunneling head. During docking, the docking angle of the loaded tunneling head can be precisely controlled through jacking control. Combined with the movable support of the movable platform 1, the docking and positioning of the tunneling head can be completed conveniently and quickly. The support assistance significantly reduces the difficulty and time required for disassembling and assembling the tunneling head, thus improving the efficiency of tunneling head maintenance.

[0032] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A temporary support replacement device for a tunneling head, comprising a pedestal mechanism and a docking mechanism for replacing the support of the tunneling head, characterized in that: The platform mechanism includes a movable platform (1), a lifting top (2), a lifting drive cylinder (3), casters (4), and a support drive cylinder (5). The lifting top (2) is movably lifted and installed on the upper part of the movable platform (1) under the drive of the lifting drive cylinder (3). The casters (4) and the support drive cylinder (5) are both installed on the lower part of the movable platform (1). The docking mechanism includes a docking drive cylinder (10), a first support seat (11), and a second support seat (12). The docking drive cylinders (10) are arranged in pairs, and the first support seat (11) and the second support seat (12) are respectively installed on the drive ends of the two docking drive cylinders (10).

2. A temporary replacement support device for a tunneling head according to claim 1, characterized in that: The casters (4) are installed at the four corners of the bottom of the movable platform (1). The support drive cylinders (5) are arranged in pairs. The two sets of support drive cylinders (5) are symmetrically installed on both sides of the movable platform (1). The push rod end of the support drive cylinder (5) is equipped with a support plate seat.

3. A temporary replacement support device for a tunneling head according to claim 2, characterized in that: Lifting guide columns (6) are fixedly installed at the four lower corners of the lifting top seat (2). The lifting guide columns (6) are movably inserted into the inner side of the guide holes provided on the upper part of the movable platform (1).

4. A temporary replacement support device for a tunneling head according to claim 3, characterized in that: The lifting drive cylinder (3) is fixedly installed inside the mounting hole in the middle of the movable platform (1), and the push rod end of the lifting drive cylinder (3) is fixedly connected to the bottom middle of the lifting top seat (2).

5. A temporary replacement support device for a tunneling head according to claim 4, characterized in that: A movable pusher (7) is fixedly installed at the rear of the movable platform (1), and a power supply box base (8) is provided below the movable pusher (7). An operation panel (9) is fixedly installed at the middle of the side of the movable platform (1).

6. A temporary replacement support device for a tunneling head according to claim 1, characterized in that: The two sets of docking drive cylinders (10) are fixedly installed on the top sides of the lifting top seat (2) in a collinear manner. The lower parts of the first support seat (11) and the second support seat (12) are fixedly connected to the push rod ends of the two docking drive cylinders (10). The lower parts of the first support seat (11) and the second support seat (12) are fixedly installed with strap mounting ring seats (13) on both sides.

7. A temporary replacement support device for a tunneling head according to claim 6, characterized in that: A central bracket (15) is fixedly installed in the middle of the two sets of docking drive cylinders (10) by bolts. Side brackets (14) are fixedly installed on both sides of the docking drive cylinder (10) by bolts. A limit guide seat (16) is fixedly installed on the upper part of the cylinder of the docking drive cylinder (10) by bolts. The push rod of the docking drive cylinder (10) moves through the limit guide seat (16). A guide groove (17) is provided on the side of the push rod of the docking drive cylinder (10). The guide groove (17) is slidably engaged with the protrusion in the middle of the limit guide seat (16).

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