Door-shaped frame suspension assembling device for single-tunnel secondary lining trolley

Abstract

The utility model discloses a door-shaped frame suspension assembling device for a single-tunnel secondary lining trolley, which comprises a door-shaped frame suspension steel wire rope and an electric winch, one end of the door-shaped frame suspension steel wire rope is bound in the middle of the top side of a door-shaped frame, the other end of the door-shaped frame suspension steel wire rope is connected to the electric winch after bypassing a first fixed pulley, and the first fixed pulley is connected to the middle of the top side of a tunnel. The two auxiliary cross beams are fixedly connected with the front ends and the rear ends of the two bottom longitudinal beams in an auxiliary mode, the seventh fixed pulley and the first fixed pulley are installed in the middle of the top side of the tunnel in a front-back mode, and a door-shaped frame suspension steel wire rope is connected to the electric winding machine after bypassing the seventh fixed pulley. Aiming at the door-shaped frame assembly of the secondary lining trolley of the single-track tunnel in the narrow space, the door-shaped frame can be quickly mounted, the mounting efficiency is greatly improved, the mounting difficulty is reduced, the walking mechanism assembly is formed by adopting the auxiliary cross beam, the stability is better in a matched assembly process in the walking process, and the mounting efficiency can be further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel construction and relates to a gantry suspension assembly device for a single-tunnel secondary lining trolley. Background Technique

[0002] Due to the small cross-sectional clearance size of the single-track railway tunnel, during the pouring of the secondary lining concrete, when the height and width of the secondary lining trolley of the single tunnel present a flat cross-section, the weight of the gantry of the secondary lining trolley is relatively heavy. It is difficult to assemble with a conventional small crane in this narrow-structured tunnel, and the operation difficulty is great. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a gantry suspension assembly device for a single-tunnel secondary lining trolley, which can solve the problems that it is difficult to assemble with a conventional small crane and the operation difficulty is great.

[0004] The technical solution adopted by the utility model is as follows: A gantry suspension assembly device for a single-tunnel secondary lining trolley includes a gantry suspension steel wire rope and an electric hoist. One end of the gantry suspension steel wire rope is tied to the middle of the top side of the gantry, and the other end is connected to the electric hoist after passing around a first fixed pulley. The first fixed pulley is connected to the middle of the top side of the tunnel, and the electric hoist is installed on the ground. It also includes two auxiliary cross beams for fixedly connecting the front and rear ends of the two bottom longitudinal beams and a seventh fixed pulley. The seventh fixed pulley and the first fixed pulley are installed in the middle of the top side of the tunnel front and back. The gantry suspension steel wire rope is connected to the electric winding machine after passing around the seventh fixed pulley. The two auxiliary cross beams can form the entire bottom traveling mechanism assembly at the screw jack mounting holes at both ends of the bottom of the bottom longitudinal beam connected with four traveling mechanisms.

[0005] Further, a rail shoe is used to lock the traveling mechanism assembly on the above-mentioned track.

[0006] Further, the gantry suspension assembly device for a single-tunnel secondary lining trolley further includes auxiliary traveling wheels detachably and fixedly connected to the bottoms of the two columns of the gantry.

[0007] Further, the gantry suspension assembly device for a single-tunnel secondary lining trolley further includes auxiliary support blocks. The auxiliary support blocks are located behind the traveling mechanism assembly, and a slope surface is arranged on the upper side. Two of them are used to support the two inclined columns of the gantry.

[0008] Advantages of the present utility model: Compared with the prior art, for the assembly of the portal frame of the secondary lining trolley for single-track tunnels in narrow spaces, by adopting the assembly structure of the present utility model, the rapid installation of the portal frame can be achieved, greatly improving the installation efficiency and reducing the installation difficulty. An auxiliary cross beam is used to connect two bottom longitudinal beams and then form a frame-structured traveling mechanism assembly with the traveling power mechanism. During the traveling process, it cooperates with the assembly, with better stability and further improving the installation efficiency. The seventh fixed pulley can suspend and lift the portal frame remotely and then move the traveling mechanism assembly to the corresponding position. After removing the auxiliary traveling wheels, the portal frame is lowered and installed at the corresponding position. Description of the Drawings

[0009] Figure 1 It is a three-dimensional schematic diagram of a secondary lining construction trolley for a single-track railway tunnel;

[0010] Figure 2 It is a three-dimensional structural schematic diagram of the traveling platform frame of a secondary lining construction trolley for a single-track railway tunnel;

[0011] Figure 3 It is a front-view structural schematic diagram of an auxiliary assembly suspension device for the skeleton of a secondary lining trolley for a single-track tunnel;

[0012] Figure 4 It is a front-view structural schematic diagram of an auxiliary assembly suspension device for the skeleton of a secondary lining trolley for a single-track tunnel (after the installation part of the traveling platform frame);

[0013] Figure 5 It is a right-view installation structural schematic diagram of an auxiliary assembly suspension device for the skeleton of a secondary lining trolley for a single-track tunnel. Detailed Embodiments

[0014] The invention will be further introduced below in conjunction with the drawings and specific embodiments.

[0015] As Figure 1-2As shown in the figure, the structure of the secondary lining construction trolley for a single-track railway tunnel includes a portal frame 1 and a power walking mechanism 2. Four power walking mechanisms 2 are installed at the four corners of the portal frame 1. The four power walking mechanisms 2 are respectively placed on two tracks 5 in pairs. The portal frame 1 includes multiple portal frames 101 and bottom longitudinal beams 102. When the bottom longitudinal beams 102 are in use, multiple screw jacks 16 need to be arranged at the bottom, and the screw jacks 16 are connected to the ground through portal support frames 17. The two free ends at the bottom of multiple portal frames 101 are fixedly connected to two bottom longitudinal beams 102 and are evenly arranged along the length direction of the bottom longitudinal beams 102. Multiple upper longitudinal beams 103 are fixedly connected between adjacent portal frames 101. Each portal frame 101 includes a top cross beam 104 and columns 105. Two columns 105 are fixedly connected to the bottom of both ends of the top cross beam 104. The power walking mechanism 2 is connected to a lifting hydraulic cylinder 20 through a support column 18. The support column 18 passes through a connecting sleeve 19 provided at the end of the bottom longitudinal beam 102. The upper end of the lifting hydraulic cylinder 20 is fixedly connected to a vertical support pier 21, and the vertical support pier 21 is fixedly connected to the column 105, which can realize the lifting of the entire portal frame.

[0016] An arch top structure is installed above the top cross beam 104. The arch top structure is a structure with variable transverse length, including a left-section top arch and a right-section top arch. Sliding-down longitudinal beams 111 and sliding-up longitudinal beams 116 are provided at the bottoms of both the left-section top arch and the right-section top arch. The sliding-down longitudinal beams 111 and the sliding-up longitudinal beams 116 are used to support and slide the arch top structure.

[0017] Example 1: For the installation of the portal frame structure of the above-mentioned trolley, as Figures 3-5 shown, the specific structure of the portal frame suspension assembly device for a single-tunnel secondary lining trolley includes a portal frame suspension steel wire rope 2301 and an electric hoist 2304. One end of the portal frame suspension steel wire rope 2301 is tied to the middle of the top side of the portal frame, and the other end is connected to the electric hoist 2304 after passing around a first fixed pulley 2305. The first fixed pulley 2305 is connected to the middle of the top side of the tunnel. The electric hoist 2304 is installed on the ground. It also includes two auxiliary cross beams 2311 and a seventh fixed pulley 2312 that are fixedly connected to the front and rear ends of the two bottom longitudinal beams. The seventh fixed pulley 2312 and the first fixed pulley 2305 are installed in the middle of the top side of the tunnel front and back. The portal frame suspension steel wire rope 2301 is connected to the first electric winding machine after passing around the seventh fixed pulley 2312. The two auxiliary cross beams can form the entire bottom walking mechanism assembly at the screw jack installation holes at the bottoms of both ends of the bottom longitudinal beam connected with four walking mechanisms, and can stably walk on the track or be locked by iron shoes 2315, which is convenient for the installation of the portal frame and the arch top structure. The seventh fixed pulley 2312 can lift the portal frame and suspend it in the air from a distance, then move the walking mechanism assembly to the corresponding position, remove the auxiliary walking wheels, and lower the portal frame for installation to the corresponding position.

[0018] The gantry suspension assembly device for the single-tunnel secondary lining trolley further includes auxiliary traveling wheels 2313 detachably and fixedly connected to the bottoms of the two columns of the gantry. Installing the auxiliary traveling wheels facilitates suspension and dragging. It also includes auxiliary support blocks 2316. The auxiliary support blocks 2316 are located behind the traveling mechanism assembly, and the upper sides are provided with inclined planes. Two of them are used to support the two columns of the inclined gantry, facilitating the initial suspension of the gantry.

[0019] Example 2: For the installation of the above-mentioned trolley structure, as Figures 3-5, the specific structure of the auxiliary assembly suspension device for the single-line tunnel secondary lining trolley skeleton includes the gantry suspension steel wire rope 2301, the upper longitudinal beam suspension steel wire rope 2302, the sliding longitudinal beam suspension steel wire rope 2303, and multiple electric hoists 2304. One end of the gantry suspension steel wire rope 2301 is tied to the middle of the top side of the gantry, and the other end is connected to the first electric hoist 2304 after passing around the first fixed pulley 2305. The first fixed pulley 2305 is connected to the middle of the top side of the tunnel, and the first electric hoist 2304 is installed on the ground. Four upper longitudinal beam suspension steel wire ropes 2302 are arranged symmetrically on the left and right sides of the tunnel. One end of the two upper longitudinal beam suspension steel wire ropes 2302 on one side is tied to the two upper longitudinal beams, and the other ends are respectively connected to the second electric hoist 2304 after passing around the second fixed pulley 2306, the third fixed pulley 2307, and the fourth fixed pulley 2308. The second fixed pulley 2306 and the third fixed pulley 2307 are respectively connected to the tunnel walls above the inner upper longitudinal beam and the outer upper longitudinal beam, and the fourth fixed pulley 2308 is connected to the tunnel wall above the outside (left or right outside) of the trolley. The second hoist 2304 is installed on the tunnel floor and is located outside the bottom longitudinal beam. Two sliding longitudinal beam suspension steel wire ropes 2303 are used on one side. The two ends are longitudinally tied to both ends of the sliding longitudinal beam, and the other ends are connected to the third electric hoist 2304 after passing around the fifth fixed pulley 2309 and the sixth fixed pulley 2310. The fifth fixed pulley 2309 and the sixth fixed pulley 2310 are longitudinally fixedly connected to the top of the tunnel side, and can hoist the sliding longitudinal beam to the top of the gantry for installation. It also includes two auxiliary cross beams 2311 and a seventh fixed pulley 2312 that are detachably fixedly connected to the front and rear ends of the two bottom longitudinal beams. The seventh fixed pulley 2312 and the first fixed pulley 2305 are installed at the middle of the top side of the tunnel front and back. The gantry suspension steel wire rope 2301 is connected to the first electric winding machine after passing around the seventh fixed pulley 2312. The two auxiliary cross beams can form the entire bottom walking mechanism assembly at the screw jack mounting holes at both ends of the bottom of the bottom longitudinal beam connected with four walking mechanisms, and stably walk on the track or be locked with iron shoes 2315, which is convenient for the installation of the gantry and the arch top structure. The seventh fixed pulley 2312 can lift the gantry suspension and suspend it in the air from a distance, then move the walking mechanism assembly to the corresponding position, remove the auxiliary walking wheels, and lower the gantry for installation at the corresponding position. It also includes auxiliary walking wheels 2313 that are detachably fixedly connected to the bottoms of the two columns of the gantry. Installing auxiliary walking wheels is convenient for suspension and dragging. It also includes an eighth fixed pulley 2314. The eighth fixed pulley 2314 is installed longitudinally consistent with the fifth fixed pulley 2309 and the sixth fixed pulley 2310 at the top of the tunnel and is located in front of the walking mechanism assembly. The sliding longitudinal beam suspension steel wire rope 2303 passes around the eighth fixed pulley 2314 and is connected to the third electric hoist 2304, so that a section of the sliding longitudinal beam suspension steel wire rope 2303 passing around the fixed pulley is far away from the sliding longitudinal beam.It can avoid the interference between the suspension wire rope 2303 of the sliding longitudinal beam and the suspended sliding longitudinal beam, which affects the suspension of the sliding longitudinal beam. It also includes auxiliary support blocks 2316. The auxiliary support blocks 2316 are located behind the walking mechanism assembly and have inclined planes on the upper side. Two of them are used to support the two columns of the inclined portal frame, which is convenient for the initial suspension of the portal frame.

[0020] For the assembly of the secondary lining trolley in a single-track tunnel with a narrow space, the adopted assembly structure can quickly realize the rapid installation of the portal frame, the upper longitudinal beam and the top sliding longitudinal beam. After installation, it is also convenient to install the small components at the arch top using the existing hoisting equipment, which greatly improves the installation efficiency and reduces the installation difficulty. The walking mechanism assembly, which uses an auxiliary cross beam to connect the two bottom longitudinal beams and forms a frame structure with the walking power mechanism, cooperates with the assembly during walking, has better stability, and can further improve the installation efficiency.

[0021] In use, two auxiliary cross beams 2311 are connected to the bottoms of two bottom longitudinal beams 102 to form a traveling mechanism assembly (including a power traveling mechanism 2). The traveling mechanism assembly is located on a track 5. A first fixed pulley 2305 is located at the top in front of the traveling mechanism assembly, a seventh fixed pulley 2312 is located at the top behind the traveling mechanism assembly, an eighth fixed pulley 2314 is located in front of the traveling mechanism assembly, the fifth fixed pulley 2309 and the sixth fixed pulley 2310 are arranged in two rows and are respectively located above the outer sides of the left and right of the traveling mechanism assembly, the second fixed pulley 2306 and the third fixed pulley 2307 are arranged in two groups and are respectively symmetrically arranged above the left and right of the traveling mechanism assembly. After installing auxiliary traveling wheels 2313 on the two columns 105 of the first gantry 101, the top of the gantry 101 is tied with a gantry suspension steel wire rope, and the first electric hoist 2304 is controlled to lift it. When it is lifted to a suspended position, the auxiliary traveling wheels 2313 are disassembled, and the traveling mechanism assembly is controlled to move towards the side where the suspended gantry 101 is located. When it moves to the installation position of the first gantry 101 at the front side, it stops and is locked (locked with an auxiliary rail brake 2315). The hoist 2304 and the positions of the two columns 105 of the gantry 101 are controlled (the positions of the columns are manually controlled) to lower it. Two positioning pins provided at the bottoms of the two columns 105 are inserted into the bottom longitudinal beam 101 to achieve positioning, and bolts are used to lock the columns 105 and the bottom longitudinal beam 102. The tied gantry suspension steel wire rope 2301 is disassembled, the locked state of the traveling mechanism assembly is released, and the traveling mechanism assembly is controlled to retreat to the initial position. Then, the second gantry 101 is suspended. The installation process of the second gantry 101 is the same as that of the first gantry 101. After the installation of the second gantry 101 is completed, it moves to the installation position of the upper longitudinal beam 103 between the first gantry 101 and the second gantry 101. The upper longitudinal beam suspension steel wire rope 2302 is tied to the corresponding upper longitudinal beam 103 for suspension. After it is suspended above the top cross beam 104 of the gantry 101, the rotation direction is manually controlled and it is lowered to the installation position, and it is locked with the two gantries 101 with bolts. After the installation of the upper longitudinal beam 103 between the first gantry 101 and the second gantry 101 is completed, the installation of the third gantry 101 and the installation of the upper longitudinal beam 103 between the third gantry 101 and the second gantry 101 are carried out. Repeat in sequence. After the installation of the last gantry 101 and the upper longitudinal beam 103 is completed, and after the installation of adjacent two gantries 101 is completed, a fork-type scissors support 122 is fixedly connected between the adjacent two gantries 101. The traveling mechanism assembly returns to the starting position. The two ends of the sliding longitudinal beam suspension steel wire rope 2303 are tied to a sliding longitudinal beam (an upper sliding beam or a lower sliding beam), and the third electric hoist 2304 is controlled to suspend it above the top cross beam 104, and it is manually moved onto the top cross beam 104. The hoisting of the sliding beam is repeated to complete the installation of all sliding longitudinal beams (the installation of the lower sliding longitudinal beam and the upper sliding longitudinal beam), and the assembly of the main frame structure of the traveling gantry is completed.And an operating platform is built on the top cross beam 104 for assembling the parts of the vault structure. The parts of the vault structure can be suspended by the upper longitudinal beam suspension wire rope 2302.

[0022] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. A portal frame suspension assembly device for a single tunnel secondary lining trolley, characterized in that: The invention comprises a portal frame suspension steel wire rope (2301) and an electric winch (2304), wherein one end of the portal frame suspension steel wire rope (2301) is tied to the middle of the top side of the portal frame, and the other end is connected to the electric winch (2304) after passing through a first fixed pulley (2305), the first fixed pulley (2305) is connected to the middle of the top side of the tunnel, and the electric winch (2304) is installed on the ground. The invention also comprises two auxiliary cross beams (2311) and a seventh fixed pulley (2312) for auxiliary fixed connection of the front and rear ends of two bottom longitudinal beams, the seventh fixed pulley (2312) and the first fixed pulley (2305) are kept front and back and installed in the middle of the top side of the tunnel, the portal frame suspension steel wire rope (2301) passes through the seventh fixed pulley (2312) and is connected to the electric winch, and the two auxiliary cross beams can be connected to the screw jack installation holes at the bottom of the two ends of the bottom longitudinal beam with four walking mechanisms, so as to form a whole bottom walking mechanism component.

2. The portal frame suspension assembly device for a single tunnel secondary lining trolley according to claim 1 is characterized in that: Iron shoes (2315) are used on the track to lock the walking mechanism components.

3. The portal frame suspension assembly device for a single tunnel secondary lining trolley according to claim 1, characterized in that: It also includes auxiliary walking wheels (2313) which are detachably fixed to the bottoms of the two upright posts of the door frame.

4. The portal frame suspension assembly device for a single tunnel secondary lining trolley according to claim 2, characterized in that: It also includes an auxiliary support block (2316), which is located behind the walking mechanism assembly and has a sloped surface on its upper side. The auxiliary support block (2316) is supported on two upright posts of the inclined door frame.

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