Multifunctional tunnel arch machine

Abstract

The present invention discloses a multifunctional tunnel arch erecting machine, which comprises a mobile trolley and a support frame; the support frame is fixedly connected to the mobile trolley, and the mobile trolley drives the support frame to move in multiple dimensions; the support frame is provided with at least two arch frame clamping assemblies for clamping and fixing arch frame segments, and the arch frame clamping assemblies drive the arch frame segments thereon to expand and contract radially along the tunnel cross section. The arch erecting machine of the present invention can realize the expansion and contraction and transfer of the arch frame segments, has diversified functions, greatly improves the installation efficiency and installation quality of the tunnel steel arch frame, and the entire process is completed mechanically, with high safety.

Description

Technical Field

[0001] The invention relates to the field of tunnel steel arch frame assembly, in particular to a multifunctional tunnel arch erecting machine. Background Art

[0002] The general process of tunnel forming is: first spray the rock surface, then erect the steel arch frame, drive the locking anchor rod, hang the steel mesh, drive the system anchor rod, reinforce the anchor pad, and finally spray the steel arch frame to the designed thickness. In the existing technology, multiple steel arch frame segments are directly arranged in the tunnel, and then assembled and welded into a complete arch. Due to the small space inside the tunnel, the installation of the steel arch frame is relatively limited, which affects the assembly efficiency and quality of the steel arch frame. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a multifunctional tunnel arch erecting machine with high installation efficiency and high quality.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A multifunctional tunnel arch erecting machine comprises a mobile trolley and a support frame; the support frame is fixedly connected to the mobile trolley and driven by the mobile trolley to move in multiple dimensions; the support frame is provided with at least two arch frame clamping assemblies for clamping and fixing arch frame segments, and the arch frame clamping assemblies drive the arch frame segments thereon to extend and retract radially along the tunnel cross section.

[0006] Furthermore, the arch frame clamping assembly includes a vertical arch frame clamping assembly and two lateral arch frame clamping assemblies, the vertical arch frame clamping assembly is arranged on the top of the support frame, and the two lateral arch frame clamping assemblies are respectively arranged on both sides of the support frame.

[0007] Furthermore, a first lifting frame is provided on the top of the support frame, the first lifting frame is slidably connected to the support frame along the vertical direction, the first lifting frame is driven to rise and fall by a first lifting driver, and the vertical arch clamping assembly is connected to the top of the first lifting frame.

[0008] Furthermore, the vertical arch frame clamping assembly includes a second lifting frame, which is arranged on the top of the first lifting frame. The second lifting frame is driven to lift by a second lifting drive, and the top of the second lifting frame is provided with at least one vertical clamp for clamping the arch frame segment.

[0009] Furthermore, the second lifting frame is a scissor-fork lifting frame.

[0010] Furthermore, the side of the support frame is slidably connected to a lateral movable sliding frame in a horizontal direction, and the lateral movable sliding frame is driven to move by a first movable driver; the lateral movable sliding frame is provided with a forward and backward movable sliding frame that can move forward and backward along the axial direction of the tunnel, and the forward and backward movable sliding frame is driven to move by a second movable driver; the lateral arch frame clamping assembly is connected to the forward and backward movable sliding frame.

[0011] Furthermore, the lateral arch clamping assembly comprises a telescopic arm, a telescopic arm and a clamping mechanism;

[0012] The rear end of the telescopic arm is rotationally connected to the front and rear moving sliding frame, and the telescopic arm is driven by the first pitch driver to perform pitch movement, the telescopic small arm is slidably connected to the front end of the telescopic arm, the telescopic small arm is driven to telescope by the telescopic driver, the front end of the telescopic small arm is rotationally connected to a pitch seat, the pitch seat is driven by the second pitch driver to perform pitch movement, the front end of the pitch seat is rotationally connected to a rotating table, the rotating table is driven to rotate by the first rotating driver, the clamping mechanism includes a front end connected to the rotating table, the clamping mechanism includes a panel, the panel is rotationally connected to the rotating table, and the panel is driven to rotate by the second rotating driver, and the upper part of the front end surface of the panel is provided with at least one lateral clamp for clamping the arch frame segment.

[0013] Furthermore, the lateral clamp comprises a fixed clamp block and a movable clamp block which are arranged at intervals, and the movable clamp block is driven to rotate by a clamping driver to clamp or release the arch segment.

[0014] Furthermore, a baffle for leaning against the arch frame segment is fixed to the lower part of the panel.

[0015] Furthermore, the bottom of the forward and backward movable sliding frame is connected to a height-adjustable supporting leg, and the bottom of the supporting leg is connected to a roller.

[0016] The present invention adopts the above technical solution and has the following beneficial technical effects:

[0017] 1. The arch erecting machine of the present invention can prefabricate the arch frame segments outside the tunnel. After the arch frame segments are clamped by the arch frame clamping assembly on the support frame, the arch frame clamping assembly can shrink the arch frame segments radially to a certain size and then transfer them into the tunnel. Then, the arch frame clamping assembly stretches each arch frame segment to a predetermined installation position, and finally assembles and welds them into a complete steel arch frame. The above process greatly improves the installation efficiency and installation quality of the tunnel steel arch frame, and has high production safety.

[0018] 2. The lateral arch frame clamping assembly in the present invention can realize multi-axis motion (including movement and rotation) and has high spatial flexibility, so it can effectively adjust the position of the arch frame segment and ensure the accuracy of the steel arch frame installation;

[0019] 3. The arch erecting machine can realize the extension and transfer of arch frame segments, has diversified functions, and the whole process is completed mechanically with high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments;

[0021] Figure 1 is a schematic diagram of the present invention;

[0022] Figure 2 is a perspective view of a lateral arch clamping assembly;

[0023] Figure 3 A simplified front view of the lateral arch clamp assembly. DETAILED DESCRIPTION

[0024] like Figure 1-3 As shown, the multifunctional tunnel arch erecting machine of the present invention comprises a mobile trolley 1 (generally an engineering vehicle) and a support frame 2; the support frame 2 is fixedly connected to the mobile trolley 1, and the mobile trolley 1 drives the support frame 2 to move in multiple dimensions (the mobile trolley 1 is used to drive the support frame 2 to enter and exit the tunnel, and can move left and right, front and back in the tunnel to adjust to the best position to install the arch frame); at least two arch frame clamping assemblies for clamping and fixing arch frame segments are provided on the support frame 2, and the arch frame clamping assemblies drive the arch frame segments thereon to extend and retract radially along the cross section of the tunnel.

[0025] Preferably, in this embodiment, the arch frame clamping assembly includes a vertical arch frame clamping assembly 3 and two lateral arch frame clamping assemblies 4, the vertical arch frame clamping assembly 3 is arranged on the top of the support frame 2, and the two lateral arch frame clamping assemblies 4 are respectively arranged on both sides of the support frame 2.

[0026] A first lifting frame 5 is provided on the top of the support frame 2. The first lifting frame 5 is slidably connected to the support frame 2 in the vertical direction. The first lifting frame 5 is driven to rise and fall by the first lifting driver 6. The vertical arch frame clamping assembly 3 is connected to the top of the first lifting frame 5. The vertical arch frame clamping assembly 3 includes a second lifting frame 31 (scissor fork lifting frame). The second lifting frame 31 is provided on the top of the first lifting frame 5. The second lifting frame 31 is driven to rise and fall by the second lifting driver 32. The top of the second lifting frame 31 is provided with at least one vertical clamp for clamping the arch frame segment (not shown in the figure, the vertical clamp is composed of two fixed blocks, and the arch frame segment is located between the two fixed clamping blocks 433). The vertical arch frame clamping assembly 3 can realize two-stage height adjustment, and the height can be roughly adjusted first and then finely adjusted, which is flexible to use.

[0027] The side of the support frame 2 is slidably connected with a lateral moving slide frame 7 in the horizontal direction, and the lateral moving slide frame 7 is driven to move by a first moving driver 8; the lateral moving slide frame 7 is provided with a forward and backward moving slide frame 9 that can move forward and backward along the axial direction of the tunnel, and the forward and backward moving slide frame 9 is driven to move by a second moving driver 10; the lateral arch frame clamping assembly 4 is connected to the forward and backward moving slide frame 9. The above structure can drive the lateral arch frame clamping assembly 4 to move forward and backward and sideways along the axial direction of the tunnel, so that the arch frame segment can be accurately adjusted to a predetermined position.

[0028] In order to improve the supporting rigidity, a height-adjustable supporting leg 11 is connected to the bottom of the forward and backward moving sliding frame 9, and a roller is connected to the bottom of the supporting leg 11, and the roller is supported on the tunnel floor or the supporting platform.

[0029] The lateral arch frame clamping assembly 4 includes a telescopic boom 41, a telescopic arm 42 and a clamping mechanism 43; the rear end of the telescopic boom 41 is rotatably connected to the front and rear moving slide frame 9, and the telescopic boom 41 is driven by a first pitching driver 44 to perform a pitching motion, the telescopic arm 42 is slidably connected to the front end of the telescopic boom 41, the telescopic arm 42 is driven to extend and retract by a telescopic driver (located inside the telescopic boom 41 and the telescopic arm 42, not shown in the figure), and the front end of the telescopic arm 42 is rotatably connected to a pitching seat 45, and the pitching seat 45 is driven by a second pitching driver The actuator 46 drives the pitching seat 45 to perform pitching motion. The front end of the pitching seat 45 is rotatably connected to a rotating table 47. The rotating table 47 is driven by a first rotating driver 48 to rotate in the A plane. The clamping mechanism 43 includes a front end connected to the rotating table 47. The clamping mechanism 43 includes a panel 431. The panel 431 is rotatably connected to the rotating table 47. The panel 431 is driven by a second rotating driver 432 to rotate in the B plane (the B plane is perpendicular to the A plane). At least one lateral clamp for clamping the arch frame segment is provided on the upper part of the front end surface of the panel 431. The above-mentioned lateral arch frame clamping assembly 4 can drive the arch frame segment to realize multi-axis motion (including lateral telescopic movement, two-stage pitching motion, and rotation), so that the arch frame segment can be accurately moved to the predetermined installation position to ensure the quality of the installation.

[0030] The lateral clamp includes a fixed clamp block 433 and a movable clamp block 434 arranged at intervals. The movable clamp block 434 is driven to rotate by a clamping driver 435 to clamp or release the arch frame segment. A baffle plate 436 for abutting against the arch frame segment is fixed to the lower part of the panel 431. The abutment of the baffle plate 436 can improve the stability of the arch frame segment and prevent the arch frame segment from shaking unnecessarily and affecting the installation quality.

[0031] In addition, the drivers involved in the present invention are preferably hydraulic cylinders.

[0032] By adopting the arch erecting machine of the present invention, arch frame segments can be prefabricated outside the tunnel. After the arch frame segments are clamped by the arch frame clamping assembly on the support frame 2, the arch frame clamping assembly can radially shrink the arch frame segments to a certain size and then transfer them into the tunnel. The arch frame clamping assembly then stretches each arch frame segment to a predetermined installation position and finally assembles and welds them into a complete steel arch frame. The above process greatly improves the installation efficiency and quality of the tunnel steel arch frame and has high production safety.

[0033] The implementation of the present invention is described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes. The above-mentioned specific implementation modes are illustrative rather than limiting the present invention. Those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. Multifunctional tunnel arch machine, characterized by: It comprises a mobile trolley and a support frame; the support frame is fixedly connected to the mobile trolley, and the mobile trolley drives the support frame to move in multiple dimensions; the support frame is provided with at least two arch frame clamping assemblies for clamping fixed arch frame segments, and the arch frame clamping assembly drives the arch frame segments thereon to expand and contract radially along the cross section of the tunnel; the arch frame clamping assembly comprises a vertical arch frame clamping assembly and two lateral arch frame clamping assemblies, the vertical arch frame clamping assembly is arranged at the top of the support frame, and the two lateral arch frame clamping assemblies are respectively arranged on both sides of the support frame; a first lifting frame is arranged at the top of the support frame, the first lifting frame is slidably connected with the support frame in the vertical direction, the first lifting frame is driven to lift by a first lifting drive, and the vertical arch frame clamping assembly is connected to the top of the first lifting frame; the vertical arch frame clamping assembly comprises a second lifting frame, the second lifting frame is arranged at the top of the first lifting frame, the second lifting frame is driven to lift by a second lifting drive, and the top of the second lifting frame is provided with at least one vertical clamp for clamping the arch frame segments; The side of the support frame is slidably connected with a lateral movable sliding frame in the horizontal direction, and the lateral movable sliding frame is driven to move by a first movable driver; the lateral movable sliding frame is provided with a forward and backward movable sliding frame that can move forward and backward along the tunnel axis, and the forward and backward movable sliding frame is driven to move by a second movable driver; the lateral arch frame clamping assembly is connected to the forward and backward movable sliding frame; The lateral arch clamping assembly comprises a telescopic arm, a telescopic arm and a clamping mechanism; The rear end of the telescopic arm is rotatably connected to the front and rear moving sliding frame, and the telescopic arm is driven by the first pitch driver to perform pitch movement, the telescopic small arm is slidably connected to the front end of the telescopic arm, the telescopic small arm is driven to telescope by the telescopic driver, the front end of the telescopic small arm is rotatably connected to a pitch seat, the pitch seat is driven by the second pitch driver to perform pitch movement, the front end of the pitch seat is rotatably connected to a rotating table, the rotating table is driven to rotate by the first rotating driver, the clamping mechanism includes a front end connected to the rotating table, the clamping mechanism includes a panel, the panel is rotatably connected to the rotating table, and the panel is driven to rotate by the second rotating driver, and at least one lateral clamp for clamping the arch frame segment is provided on the upper part of the front end surface of the panel; the lateral clamp includes a fixed clamp block and a movable clamp block arranged at intervals, and the movable clamp block is driven to rotate by the clamping driver to clamp or release the arch frame segment.

2. The multifunctional tunnel arch machine according to claim 1, characterized in that: The second lifting frame is a scissor-fork lifting frame.

3. The multifunctional tunnel arch machine according to claim 1, characterized in that: A baffle plate for leaning against the arch frame segment is fixed at the lower part of the panel.

4. The multifunctional tunnel arch machine according to claim 1, characterized in that: The bottom of the forward and backward movable sliding frame is connected with a height-adjustable supporting leg, and the bottom of the supporting leg is connected with a roller.

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