Adjustable bracket for a tunneling machine

Abstract

This utility model relates to the field of tunnel engineering technology and discloses an adjustable bracket for a tunnel boring machine (TBM). The bracket includes a supporting steel frame, a drive adjustment and unfolding section, and a supporting bracket section. Supporting pads are fixedly installed on the bottom outer wall of the supporting steel frame. In terms of automated adjustment, the drive motor, as a power source, controls the rotation of the forward and reverse threaded screws, thereby driving two movable base blocks to slide along guide grooves. This achieves automated adjustment of the width of the supporting bracket section. The cooperation between the connecting guide rod and the guide sleeve provides stable guidance for the sliding of the movable base blocks, preventing deviation or jamming during movement. The sliding connection between the movable slider and the guide groove further ensures the accuracy of movement and guarantees the adjustment precision of the supporting bracket section. This allows the bracket to accurately adapt to TBMs of different sizes, enhancing the applicability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, specifically to an adjustable bracket for a tunnel boring machine. Background Technology

[0002] In the field of tunnel boring machine (TBM) construction, the support frame, as a key component supporting the TBM, directly affects the efficiency and safety of construction. With the deepening development of urban underground space and the continuous expansion of infrastructure construction such as traffic tunnels and water conservancy projects, TBM models are becoming increasingly diversified, covering small-diameter section tunnel TBMs, large-diameter subway TBMs, and even ultra-large-diameter cross-sea tunnel TBMs. Different models of TBMs differ significantly in size, weight, and structural layout.

[0003] However, traditional tunnel boring machine (TBM) brackets generally suffer from problems such as structural fixation and difficulty in adjustment. Their standard specifications are difficult to adapt to the installation requirements of different models and sizes of TBMs. When it is necessary to change the model of the TBM on the construction site, a lot of manpower and resources are often required to modify the existing brackets or even customize new brackets. This not only greatly increases the construction cost, but also forces the construction period to be extended, seriously affecting the progress of the project. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable bracket for tunnel boring machines, which solves the technical problems of traditional brackets being difficult to adapt to different models of tunnel boring machines, having complicated adjustment operations, and poor stability. It achieves the goal of improving the versatility of the bracket, adjustment efficiency, and construction safety, while reducing labor and equipment costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable bracket for a tunnel boring machine, comprising a supporting steel frame, a drive adjustment and deployment part, and a supporting bracket part, wherein supporting pads are fixedly installed on the bottom outer wall of the supporting steel frame; the drive adjustment and deployment part is disposed on the top and outer side of the supporting steel frame; and the supporting bracket part is disposed on the top of the supporting pads.

[0006] Preferably, the drive adjustment and unfolding part specifically includes: a support steel plate, symmetrically fixedly installed on the top outer wall of the support pad; a motor fixing frame, fixedly installed on one side outer wall of the support steel plate; a drive motor, disposed inside the motor fixing frame; and a guide groove, formed inside the support steel frame.

[0007] Preferably, connecting guide rods are fixedly installed at equal intervals between the supporting steel plates, a rotating sleeve is fixedly installed on one side of the outer wall of the supporting steel plate, and a movable base block one and a movable base block two are respectively arranged between the supporting steel plates, with movable sliders fixedly installed on both sides of the outer walls of the movable base block one and the movable base block two.

[0008] The system is equipped with two movable base blocks. In terms of adjustment, both blocks are fitted onto the connecting guide rod via guide sleeves. Combined with a drive motor and forward and reverse threaded screws, they can slide along the guide groove, thereby flexibly adjusting the spacing of the support bracket to adapt to different sizes of tunnel boring machines and greatly improving the versatility of the bracket. In terms of structural stability, the sliding connection between the movable block and the guide groove, as well as the guiding support of the connecting guide rod on the movable base block, ensures that the bracket remains stable during adjustment, preventing swaying and deviation, and ensuring the stability of the tunnel boring machine during installation and operation.

[0009] Preferably, guide sleeves are symmetrically fixedly installed on the outer walls of the first and second movable base blocks, and threaded connecting sleeves are fixedly installed on one side of the outer wall of the first and second movable base blocks. The first and second movable base blocks are movably sleeved on the outer wall of the connecting guide rod through the guide sleeves, and a positive threaded screw is fixedly connected to the output end of the drive motor.

[0010] Preferably, the other end of the positive threaded screw movably penetrates one side of the outer wall of the supporting steel plate and extends between the supporting steel plates. The other end of the positive threaded screw is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to a reverse threaded screw.

[0011] Preferably, the other end of the reverse threaded screw extends movably through the supporting steel plate to the inner wall of the rotating sleeve, and the other end of the reverse threaded screw is rotatably connected to the inner wall of the rotating sleeve. Both the first movable base block and the second movable base block are slidably connected to the guide groove through a movable slider.

[0012] Preferably, the support bracket specifically includes: an L-shaped fixing frame, symmetrically fixedly installed on the outer wall of the support steel plate; a first support plate, symmetrically arranged on the top of the first and second movable base blocks; and a second support plate, symmetrically arranged on the top of the first and second movable base blocks.

[0013] An L-shaped fixing frame is installed, with a fixed rectangular steel rod providing lateral limit and guidance for support plate one and support plate two, ensuring a stable trajectory during movement and adjustment, preventing deviation and swaying, and ensuring the reliability of the entire bracket structure when adjusting and supporting the tunnel boring machine. In terms of adjustment flexibility, support plate one and support plate two are fitted onto the rectangular steel rod through rectangular openings, working in conjunction with the drive adjustment unfolding part. When the moving base blocks one and two move under the drive of the screw, the support plates can slide along the rectangular steel rod, thereby realizing flexible adjustment of the bracket width to adapt to tunnel boring machines of different sizes.

[0014] Preferably, both the first and second support plates have rectangular openings at equal intervals. Support brackets are fixedly installed on the top outer walls of both the first and second support plates. Rectangular steel rods are fixedly installed between the L-shaped fixing brackets. The first and second support plates are movably fitted onto the outer walls of the rectangular steel rods through the rectangular openings. The first support plate is fixedly installed on the top outer wall of the movable base block 2. The second support plate is fixedly installed on the top outer wall of the movable base block 1.

[0015] This utility model provides an adjustable bracket for tunnel boring machines. It has the following advantages:

[0016] (1) In terms of automated adjustment, the drive motor is used as a power source to control the rotation of the forward threaded screw and the reverse threaded screw, thereby driving the first and second moving base blocks to slide along the guide groove, realizing the automated adjustment of the width of the support bracket. The cooperation of the connecting guide rod and the guide sleeve provides stable guidance for the sliding of the moving base blocks and prevents deviation or jamming during the movement. The sliding connection between the moving slider and the guide groove further ensures the accuracy of the movement and ensures the adjustment accuracy of the support bracket, so that the bracket can accurately adapt to shield machines of different sizes and enhance the applicability of the equipment.

[0017] (2) From the perspective of load-bearing function, the support plates one and two and the support bracket on top of them provide a stable support plane for the tunnel boring machine, evenly distribute the weight of the tunnel boring machine, avoid excessive local stress, and ensure the stability of the tunnel boring machine during operation. The rectangular opening and the rectangular steel rod ensure that the support plates can be moved and adjusted flexibly while maintaining the strength of the support structure. In terms of adaptability, the support bracket can be linked with the drive adjustment and unfolding part. By moving the bottom block, the support plate can be moved along the rectangular steel rod to adjust the width of the bracket. It can quickly adapt to the size specifications of different models of tunnel boring machines, and improve the versatility and construction flexibility of the bracket. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the overall structure of this utility model;

[0019] Figure 2 This is a partial view of the drive adjustment unfolding part of this utility model;

[0020] Figure 3 This is a partial view of the drive motor of this utility model;

[0021] Figure 4 This is a partial view of the support bracket part of this utility model.

[0022] In the diagram: 1. Support steel frame, 2. Support pad, 3. Drive adjustment and unfolding part, 311. Motor fixing frame, 312. Drive motor, 313. Rotating sleeve, 314. Reverse threaded screw, 315. Support steel plate, 316. Connecting guide rod, 317. Moving base block one, 318. Moving base block two, 319. Threaded connecting sleeve, 3111. Guide sliding sleeve, 3112. Moving slider, 3113. Guide slide groove, 3114. Forward threaded screw, 3115. Connecting rod, 4. Support bracket part, 411. Support plate one, 412. Rectangular opening, 413. L-shaped fixing frame, 414. Rectangular steel rod, 415. Support plate two, 416. Support bracket. Detailed Implementation

[0023] 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.

[0024] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0025] Addressing the problems of traditional support systems being difficult to adapt to different types of tunnel boring machines (TBMs), having complex adjustment operations, and poor stability, this utility model provides a preferred embodiment of an adjustable support system for TBMs, for example... Figures 1-4 As shown: An adjustable bracket for a tunnel boring machine includes a supporting steel frame 1, a drive adjustment and deployment part 3, and a supporting bracket part 4. Support pads 2 are fixedly installed on the bottom outer wall of the supporting steel frame 1; the drive adjustment and deployment part 3 is located on the top and outer side of the supporting steel frame 1; and the supporting bracket part 4 is located on the top of the support pads 2.

[0026] The drive adjustment and unfolding part 3 specifically includes: a support steel plate 315, which is symmetrically fixedly installed on the top outer wall of the support pad 2; a motor fixing frame 311, which is fixedly installed on one side outer wall of the support steel plate 315; a drive motor 312, which is set inside the motor fixing frame 311; and a guide slide 3113, which is opened inside the support steel frame 1.

[0027] Connecting guide rods 316 are fixedly installed at equal intervals between the supporting steel plates 315. A rotating sleeve 313 is fixedly installed on one outer wall of the supporting steel plate 315. A movable base block 1 317 and a movable base block 2 318 are respectively arranged between the supporting steel plates 315. Movable sliders 3112 are fixedly installed on both outer walls of the movable base block 1 317 and the movable base block 2 318.

[0028] Guide sleeves 3111 are symmetrically fixedly installed on the outer walls of movable base block 1 317 and movable base block 2 318. Threaded connecting sleeves 319 are fixedly installed on one side of the outer wall of movable base block 1 317 and movable base block 2 318. Movable base block 1 317 and movable base block 2 318 are movably sleeved on the outer wall of connecting guide rod 316 through guide sleeves 3111. A positive threaded screw 3114 is fixedly connected to the output end of drive motor 312.

[0029] The other end of the positive threaded screw 3114 moves through one side of the outer wall of the support steel plate 315 and extends to the space between the support steel plates 315. The other end of the positive threaded screw 3114 is fixedly connected to the connecting rod 3115, and the other end of the connecting rod 3115 is fixedly connected to the reverse threaded screw 314.

[0030] The other end of the reverse threaded screw 314 extends through the support steel plate 315 to the inner wall of the rotating sleeve 313. The other end of the reverse threaded screw 314 is rotatably connected to the inner wall of the rotating sleeve 313. The first movable base block 317 and the second movable base block 318 are slidably connected to the guide groove 3113 through the movable slider 3112.

[0031] In this embodiment, the forward threaded screw 3114 rotates, and its other end is connected to the reverse threaded screw 314 via the connecting rod 3115. The other end of the reverse threaded screw 314 rotates on the inner wall of the rotating sleeve 313. The rotation of the forward and reverse threaded screws 3114, using the thread transmission principle, drives the first movable base block 317 and the second movable base block 318 to move. The first movable base block 317 and the second movable base block 318 cooperate with the screw through the threaded connecting sleeve 319, while the guide sleeve 3111 on its outer wall is fitted onto the connecting guide rod. On 316, the movable sliders 3112 on both sides slide in the guide grooves 3113 inside the support steel frame 1, ensuring stable and accurate movement. The rotation of the forward and reverse threaded screws can be controlled, thereby driving the first and second movable base blocks to slide along the guide grooves, realizing automatic adjustment of the width of the support bracket. The cooperation between the connecting guide rod and the guide sleeve provides stable guidance for the sliding of the movable base blocks, preventing deviation or jamming during movement. The sliding connection between the movable sliders and the guide grooves further ensures the accuracy of movement. Example

[0032] Please see Figures 1-4Furthermore, based on Embodiment 1, the following is obtained: the support bracket part 4 specifically includes: an L-shaped fixing frame 413, which is symmetrically fixedly installed on the outer wall of the support steel plate 315; a first support plate 411, which is symmetrically arranged on the top of the first movable base block 317 and the second movable base block 318; and a second support plate 415, which is symmetrically arranged on the top of the first movable base block 317 and the second movable base block 318.

[0033] Both support plate 1 411 and support plate 2 415 have rectangular openings 412 at equal intervals. Support brackets 416 are fixedly installed on the top outer walls of both support plate 1 411 and support plate 2 415. Rectangular steel rods 414 are fixedly installed between L-shaped fixing brackets 413. Support plate 1 411 and support plate 2 415 are movably fitted onto the outer walls of the rectangular steel rods 414 through the rectangular openings 412. Support plate 1 411 is fixedly installed on the top outer wall of movable base block 2 318; support plate 2 415 is fixedly installed on the top outer wall of movable base block 1 317.

[0034] In this embodiment, after the support bracket part 4 is adjusted to a suitable width, the drive motor 312 is turned off, and the moving base block 317 and the moving base block 318 stop moving. The support plate 411 and the support plate 415 are also fixed in the corresponding positions. At this time, the tunnel boring machine can be placed on the support bracket 416 on top of the support plate 411 and the support plate 415, completing the adjustment and preparation of the bracket. This provides a stable support plane for the tunnel boring machine, evenly distributes the weight of the tunnel boring machine, avoids excessive local stress, and ensures the stability of the tunnel boring machine during operation. The rectangular opening cooperates with the rectangular steel rod, which not only ensures that the support plate can be moved and adjusted flexibly, but also maintains the strength of the support structure. In terms of adaptability, the support bracket part can be linked with the drive adjustment and unfolding part. By moving the base block, the support plate can be slid along the rectangular steel rod to realize the adjustment of the bracket width.

[0035] Working principle: When using:

[0036] Step 1: Place the support steel frame 1 stably in the predetermined position using the support pad 2 at the bottom to ensure that the support steel frame 1 is stable and does not shake, providing a stable foundation for subsequent operations. At this time, the drive adjustment and unfolding part 3 has been installed on the top and outside of the support steel frame 1, and the support bracket part 4 is also set on the top of the support pad 2. All components are in the initial state.

[0037] Step 2: Turn on the drive motor 312. The drive motor 312 is installed inside the motor mounting bracket 311. The motor mounting bracket 311 is fixed to the outer wall of one side of the support steel plate 315. After the drive motor 312 starts, it drives the positive threaded screw 3114, which is fixedly connected to its output end, to rotate.

[0038] Step 3: The forward threaded screw 3114 rotates, and its other end is connected to the reverse threaded screw 314 through the connecting rod 3115. The other end of the reverse threaded screw 314 rotates on the inner wall of the rotating sleeve 313. The rotation of the forward threaded screw 3114 and the reverse threaded screw 314, using the thread transmission principle, drives the moving base block 1 317 and the moving base block 2 318 to move. The moving base block 1 317 and the moving base block 2 318 cooperate with the screw through the threaded connecting sleeve 319. At the same time, the guide sleeve 3111 on its outer wall is fitted on the connecting guide rod 316. The moving sliders 3112 on both sides slide in the guide groove 3113 inside the supporting steel frame 1 to ensure that the movement process is stable and the direction is accurate.

[0039] Step 4: As the movable base block 1 317 and movable base block 2 318 move, the support plate 1 411 and support plate 2 415 fixed on their tops move synchronously. The support plate 1 411 and support plate 2 415 are fitted onto the rectangular steel rod 414 between the L-shaped fixed frame 413 through the rectangular opening 412 at the top. During the movement, they can slide along the rectangular steel rod 414, thereby realizing the adjustment of the width of the support bracket part 4 to adapt to shield machines of different sizes.

[0040] Step 5: After the support bracket 4 is adjusted to the appropriate width, turn off the drive motor 312, and stop the movement of the first moving block 317 and the second moving block 318. The first support plate 411 and the second support plate 415 are also fixed in the corresponding positions. At this time, the tunnel boring machine can be placed on the support bracket 416 on top of the first support plate 411 and the second support plate 415 to complete the adjustment and preparation of the bracket.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An adjustable bracket for a tunnel boring machine, comprising a supporting steel frame (1), a drive adjustment and deployment section (3), and a supporting bracket section (4), characterized in that: The bottom outer wall of the supporting steel frame (1) is fixedly equipped with supporting pads (2); the driving adjustment and unfolding part (3) is set on the top and outside of the supporting steel frame (1); the supporting bracket part (4) is set on the top of the supporting pads (2); The drive adjustment expansion section (3) specifically includes: Support steel plates (315) are symmetrically fixedly installed on the top outer wall of the support pads (2); The motor mounting bracket (311) is fixedly installed on one side of the outer wall of the supporting steel plate (315); The drive motor (312) is located inside the motor mounting bracket (311); The guide groove (3113) is formed inside the supporting steel frame (1); Connecting guide rods (316) are fixedly installed at equal intervals between the supporting steel plates (315). A rotating sleeve (313) is fixedly installed on one side of the outer wall of the supporting steel plate (315). A movable base block one (317) and a movable base block two (318) are respectively arranged between the supporting steel plates (315). Movable sliders (3112) are fixedly installed on both sides of the outer walls of the movable base block one (317) and the movable base block two (318). The support bracket (4) specifically includes: L-shaped fixing brackets (413) are symmetrically fixedly installed on the outer wall of the supporting steel plate (315); Support plate one (411) is symmetrically arranged on top of movable base block one (317) and movable base block two (318); Support plate two (415) is symmetrically arranged on top of movable base block one (317) and movable base block two (318); Rectangular openings (412) are provided at equal intervals on both the first support plate (411) and the second support plate (415). Support brackets (416) are fixedly installed on the top outer walls of both the first support plate (411) and the second support plate (415). Rectangular steel rods (414) are fixedly installed between the L-shaped fixing frames (413). The first support plate (411) and the second support plate (415) are movably fitted onto the outer wall of the rectangular steel rods (414) through the rectangular openings (412). The first support plate (411) is fixedly installed on the top outer wall of the second movable base block (318). The second support plate (415) is fixedly installed on the top outer wall of the first movable base block (317).

2. The adjustable bracket for a tunneling machine of claim 1, wherein: Guide sleeves (3111) are symmetrically fixedly installed on the outer walls of the first movable base block (317) and the second movable base block (318). Threaded connecting sleeves (319) are fixedly installed on one side of the outer wall of the first movable base block (317) and the second movable base block (318). The first movable base block (317) and the second movable base block (318) are movably sleeved on the outer wall of the connecting guide rod (316) through the guide sleeves (3111). A positive threaded screw (3114) is fixedly connected to the output end of the drive motor (312).

3. The adjustable bracket for a tunneling machine of claim 2, wherein: The other end of the positive threaded screw (3114) movably passes through one side of the outer wall of the support steel plate (315) and extends to the space between the support steel plates (315). The other end of the positive threaded screw (3114) is fixedly connected to a connecting rod (3115), and the other end of the connecting rod (3115) is fixedly connected to a reverse threaded screw (314).

4. The adjustable bracket for a tunneling machine of claim 3, wherein: The other end of the reverse threaded screw (314) extends through the support steel plate (315) to the inner wall of the rotating sleeve (313). The other end of the reverse threaded screw (314) is rotatably connected to the inner wall of the rotating sleeve (313). The first movable base block (317) and the second movable base block (318) are slidably connected to the guide groove (3113) through the movable slider (3112).

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