Assembling device suitable for large-diameter tunnel prefabricated mid-partition wall

Abstract

The invention relates to a large-diameter tunnel prefabrication mid-partition assembling device which comprises guide rails, a front door frame, a rear door frame, a bearing component, pull rods, a moving power component, a supporting component, a rotating bow beam, a pressing component and an operating platform, the two guide rails are arranged between the upper portion of the front door frame and the upper portion of the rear door frame in parallel, and the lower portions of the front door frame and the rear door frame are connected through the two pull rods. The two guide rails are connected with bearing components through supporting components respectively, a rotating bow beam is installed on the two bearing components, a pressing component is arranged in the rotating bow beam, a movable power component is installed in each supporting component, and the movable power components are connected with racks on the guide rails in a meshed mode through gears. The supporting components, the bearing component and the rotating bow beam are driven by the moving power component to move along the two guide rails, and an operation platform is installed on the side face of one supporting component. The device can be applied to a large-weight, large-size and limited space.

Description

Technical Field

[0001] The invention relates to a prefabricated partition wall assembly device for a large-diameter tunnel, in particular to a partition wall assembly device which is applicable to large-weight, large-size and confined spaces. Background Art

[0002] The Airport Link Line of Shanghai Metro Urban Line is an important part of Shanghai's rail transit system. The line runs from Hongqiao Railway Station in Hongqiao Comprehensive Transportation Hub in Minhang District to Shanghai East Station in Shanghai East Transportation Hub in Pudong New Area. It passes through three districts, namely Minhang District, Xuhui District and Pudong New Area. The main areas it passes through from west to east include Hongqiao Business District, Qibao, Meilong, Huajing, Sanlin, Zhangjiang Science City, International Tourism Resort, Pudong International Airport, Shanghai East Railway Station, etc. It transfers with many lines in the rail transit network. It is mainly an underground section, and some tunnels adopt a single-hole double-line section layout. The outer diameter of the pipe segment is 13.6m, the inner diameter is 12.5m, and the ring width is 2m. The pipe segment adopts a universal wedge ring and is assembled with staggered seams.

[0003] The interior of the single-hole double-track tunnel of this line is assembled with all prefabricated components. The prefabricated components in the tunnel are divided into 5 parts, namely the tunnel segment, the bottom arch block, the middle partition wall, the top transverse bracket, and the cable troughs on both sides. Figure 1 shown.

[0004] The middle partition wall is 9.136m high, 2.19m wide, 9.395m diagonally long, 0.4m thick, and weighs 20.6t. The train runs at a high speed, and the installation accuracy of the middle partition wall is high. However, after the arc parts at the bottom are assembled, the distance between the arc parts and the top of the tunnel is 9.566m. During the rotation of the middle partition wall, there is only a 0.171m gap between the upper pipe segment. The lifting and flipping installation in the tunnel is extremely difficult. How to install with high precision is a problem that needs to be solved urgently. Summary of the invention

[0005] In order to solve the problems of batch transportation, positioning and installation of overweight prefabricated center partition walls in a confined space and to achieve synchronous construction to improve construction efficiency, the present invention provides an assembly device for prefabricated center partition walls of large-diameter tunnels.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a prefabricated central partition wall assembly device suitable for large-diameter tunnels, including guide rails, a front door frame, a rear door frame, a bearing component, a pull rod, a mobile power component, a support component, a rotating bow beam, a clamping component, and an operating platform. Two guide rails are arranged in parallel between the upper parts of the front door frame and the rear door frame, and the lower parts are connected by two pull rods. The two guide rails are respectively connected to the bearing components by support components. A rotating bow beam is installed on the two bearing components. A clamping component is arranged in the rotating bow beam. A mobile power component is arranged in the support component, and the mobile power component is meshed with a rack on the guide rail through a gear. The support component, the bearing component and the rotating bow beam are driven by the mobile power component to move along the two guide rails, and an operating platform is arranged on the side of a support component.

[0007] Furthermore, baffles are provided on the inner and outer sides of the support component, and the two baffles and the bottom plate are slidably connected with the guide rail.

[0008] Furthermore, the rear door frame is composed of two inverted L-shaped brackets, and the two inverted L-shaped brackets are connected by screws and nuts, and the width of the rear door frame can be adjusted by the screws and nuts.

[0009] Furthermore, rotating shafts are provided on both sides of the lower portion of the rotating bow beam, and are sleeved on the connecting shafts of the bearing components on both sides through the rotating shafts.

[0010] Furthermore, the mobile power component is composed of a motor, a reduction box and gears, and the motor is connected to the gears via the reduction box.

[0011] A method for using a prefabricated intermediate partition wall assembly device for a large-diameter tunnel, comprising the following steps:

[0012] (1) Use a horizontal transport vehicle to transport the middle partition wall to the center of the front door frame and the rear door frame;

[0013] (2) Use the vehicle-mounted adjustment bracket to lift the middle partition wall into the rotating bow beam;

[0014] (3) The rotating bow beam moves to the reserved center hole of the middle partition wall for alignment and fixation;

[0015] (4) After the middle partition wall and the rotating bow beam are fixed, the vehicle-mounted adjustment bracket is retracted and exits the assembly area with the horizontal transport vehicle;

[0016] (5) After rotating the bow beam to rotate the middle partition wall vertically, it moves forward to the position to be assembled;

[0017] (6) Rotate the middle partition wall left and right and horizontally and vertically;

[0018] (7) Lower the middle partition wall into place and release the fixing from the rotating bow beam;

[0019] (8) rotating the bow beam back to its initial position;

[0020] (9) Release the front and rear door frames and move the device forward to the next assembly unit.

[0021] Furthermore, in step (5), the heavy-weight middle partition wall is rotated 180°, moved forward, and adjusted up, down, left, and right in the confined space to meet the high-precision assembly requirements of the prefabricated components.

[0022] The beneficial effects of the device of the present invention are:

[0023] The invention can rotate the heavy-weight central partition wall 180 degrees, move forward, and adjust it up and down and left and right in a confined space, so as to meet the high-precision assembly requirements of prefabricated components and ensure that the construction quality of the central partition wall of the formed tunnel is within the allowable range of the design requirements.

[0024] Under the general trend of standardized, prefabricated and standardized construction, the device of the present invention will have great applicability and economic prospects, and can be widely used in various types of engineering construction by adjusting the size. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the installation of the internal structural parts of the tunnel;

[0026] Figure 2 It is a partition wall assembly device for large diameter tunnels;

[0027] Figure 3 It is the three-view drawing of the middle partition wall assembly device;

[0028] Among them: a is the main view, b is the left view, and c is the top view;

[0029] Figure 4 It is a guide rail;

[0030] Figure 5 It is the front door frame;

[0031] Figure 6 It is the rear door rack;

[0032] Figure 7 It is a load-bearing component;

[0033] Figure 8 It is a moving power component;

[0034] Fig. 9 It is a supporting component;

[0035] Fig.10 It is a rotating bow beam. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] like Figure 2 , Figure 3 a, b, c in Figures 4 to 10 As shown, the present invention is a prefabricated central partition wall assembly device suitable for large-diameter tunnels, including a guide rail 1, a front door frame 2, a rear door frame 3, a bearing component 4, a pull rod 5, a mobile power component 6, a supporting component 7, a rotating bow beam 8, a clamping component 9, and an operating platform 10.

[0038] Two guide rails 1 are arranged parallel between the upper parts of the front door frame 2 and the rear door frame 3, and the lower parts are connected by two tie rods 5. The two guide rails 1 are connected to the bearing parts 4 through the support parts 7, and the rotating bow beams 8 are installed on the two bearing parts 4, and the rotating bow beams 8 are provided with a clamping part 9. Among them, the support part 7 is equipped with a moving power part 6, and the moving power part 6 is meshed with the rack on the guide rail 1 through a gear, and the support part 7, the bearing part 4 and the rotating bow beam 8 are driven by the moving power part 6 to move along the two guide rails 1. An operating platform 10 is installed on the side of one support part 7.

[0039] Preferably, Fig. 9 As shown, baffles are provided on the inner and outer sides of the support component 7, and the two baffles and the bottom plate are slidably connected with the guide rail.

[0040] Preferably, Figure 6 As shown, the rear door frame 3 is composed of two inverted L-shaped brackets, and the two inverted L-shaped brackets are connected by screws and nuts. The width of the rear door frame 3 can be adjusted by the screws and nuts.

[0041] Preferably, Fig.10 As shown, rotating shafts are provided on both sides of the lower part of the rotating bow beam 8, and are sleeved on the connecting shafts of the bearing components 4 on both sides through the rotating shafts.

[0042] Preferably, Figure 8 As shown, the mobile power component 6 is composed of a motor, a reduction box and gears, and the motor is connected to the gears through the reduction box.

[0043] The method of using the device is as follows:

[0044] (1) Use a horizontal transport vehicle to transport the middle partition wall to the center of the front door frame and the rear door frame;

[0045] (2) Use the vehicle-mounted adjustment bracket to lift the middle partition wall into the rotating bow beam;

[0046] (3) The rotating bow beam moves to the reserved center hole of the middle partition wall for alignment and fixation;

[0047] (4) After the middle partition wall and the rotating bow beam are fixed, the vehicle-mounted adjustment bracket is retracted and exits the assembly area with the horizontal transport vehicle;

[0048] (5) After rotating the bow beam to rotate the middle partition wall vertically, it moves forward to the position to be assembled;

[0049] (6) Rotate the middle partition wall left and right and horizontally and vertically;

[0050] (7) Lower the middle partition wall into place and release the fixing from the rotating bow beam;

[0051] (8) rotating the bow beam back to its initial position;

[0052] (9) Release the front and rear door frames and move the device forward to the next assembly unit.

[0053] In step (5), the heavy-weight middle partition wall is rotated 180 degrees, moved forward, and adjusted up, down, left, and right in a confined space to meet the high-precision assembly requirements of the prefabricated components.

Claims

1. An assembly device for prefabricated intermediate partition walls of large-diameter tunnels, comprising guide rails, a front door frame, a rear door frame, a bearing component, a pull rod, a mobile power component, a supporting component, a rotating bow beam, a pressing component, and an operating platform, characterized in that: Two guide rails are arranged in parallel between the upper parts of the front door frame and the rear door frame, and the lower parts are connected by two pull rods. The two guide rails are connected to the bearing parts through supporting parts respectively, and a rotating bow beam is installed on the two bearing parts. A clamping part is arranged in the rotating bow beam, and a moving power part is arranged in the supporting part, and the moving power part is meshed with the rack on the guide rail through a gear. The supporting part, the bearing part and the rotating bow beam are driven to move along the two guide rails by the moving power part, and an operating platform is arranged on the side of one supporting part.

2. The prefabricated intermediate partition wall assembly device for large diameter tunnels according to claim 1 is characterized in that: Baffles are arranged on the inner and outer sides of the supporting component, and the supporting component is slidably connected with the guide rail through the two baffles and the bottom plate.

3. The prefabricated intermediate partition wall assembly device for large diameter tunnels according to claim 1 is characterized in that: The rear door frame is composed of two inverted L-shaped brackets, which are connected by screws and nuts. The width of the rear door frame can be adjusted by the screws and nuts.

4. The prefabricated intermediate partition wall assembly device for large diameter tunnels according to claim 1 is characterized in that: Rotating shafts are arranged on both sides of the lower part of the rotating bow beam, and are sleeved on the connecting shafts of the bearing components on both sides through the rotating shafts.

5. The prefabricated intermediate partition wall assembly device for large diameter tunnels according to claim 1 is characterized in that: The mobile power component is composed of a motor, a reduction box and gears, and the motor is connected to the gears through the reduction box.

6. A method for using the prefabricated intermediate partition wall assembly device for large-diameter tunnels according to any one of claims 1 to 5, characterized in that: The following steps are involved: (1) Use a horizontal transport vehicle to transport the middle partition wall to the center of the front door frame and the rear door frame; (2) Use the vehicle-mounted adjustment bracket to lift the middle partition wall into the rotating bow beam; (3) The rotating bow beam moves to the reserved center hole of the middle partition wall for alignment and fixation; (4) After the middle partition wall and the rotating bow beam are fixed, the vehicle-mounted adjustment bracket is retracted and exits the assembly area along with the horizontal transport vehicle; (5) After rotating the bow beam to rotate the middle partition wall vertically, it moves forward to the position to be assembled; (6) Rotate the middle partition wall left and right and horizontally and vertically; (7) Lower the middle partition wall into place and release the fixing from the rotating bow beam; (8) rotating the bow beam back to its initial position; (9) Release the front and rear door frames and move the device forward to the next assembly unit.

7. The method of use according to claim 6, characterized in that: In step (5), the heavy-weight middle partition wall is rotated 180 degrees, moved forward, and adjusted up, down, left, and right in a confined space to meet the high-precision assembly requirements of the prefabricated components.

Images