Sliding longitudinal beam suspension assembling device for single-tunnel secondary lining trolley

Abstract

The utility model discloses a slippage longitudinal beam suspension assembling device for a single-tunnel secondary lining trolley, which comprises two slippage longitudinal beam suspension steel wire ropes and an electric winch, the two slippage longitudinal beam suspension steel wire ropes are arranged on one side, and the two ends of the slippage longitudinal beam suspension steel wire ropes are longitudinally bound at the two ends of a slippage longitudinal beam. The other end of the third electric winch bypasses a fifth fixed pulley and a sixth fixed pulley and then is connected to the third electric winch; the fifth fixed pulley and the sixth fixed pulley are longitudinally and fixedly connected to the top of the side surface of the tunnel; the two auxiliary cross beams are fixedly connected with the front ends and the rear ends of the two bottom longitudinal beams, and the two auxiliary cross beams can be connected with screw jack mounting holes in the bottoms of the two ends of the bottom longitudinal beams connected with the four walking mechanisms. The top sliding longitudinal beam can be rapidly installed, the installation efficiency is greatly improved, the installation difficulty is reduced, the two bottom longitudinal beams are connected through the auxiliary cross beam, then the auxiliary cross beam and the walking power mechanism form a walking mechanism assembly of a frame structure, the auxiliary cross beam and the walking power mechanism are assembled in a matched mode in the walking process, and position adjustment of the sliding longitudinal beam can be achieved.

Description

Technical Field

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

[0002] Due to the small cross-sectional clearance size of a single-track railway tunnel, during the pouring of secondary lining concrete, when the height and width of the secondary lining trolley of a single tunnel present a flat cross-section, the length of the sliding longitudinal beam at the top of the secondary lining trolley is long and heavy. After installing the portal frame, it is more difficult to install in this narrow-structured tunnel. It is difficult to achieve assembly with a conventional small crane, 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 sliding longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley, which can solve the problems that it is difficult to achieve assembly with a conventional small crane and the operation difficulty is great.

[0004] The technical solution adopted by the utility model is as follows: A sliding longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley includes a sliding longitudinal beam suspension steel wire rope and an electric hoist. Two sliding longitudinal beam suspension steel wire ropes are used on one side, and the two ends are longitudinally tied to both ends of the sliding longitudinal beam. The other end passes around the fifth fixed pulley and the sixth fixed pulley and then is connected to the third electric hoist. The fifth fixed pulley and the sixth fixed pulley are longitudinally fixedly connected to the top of the tunnel side; it also includes two auxiliary cross beams fixedly connecting the front and rear ends of the two bottom longitudinal beams. 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, an iron shoe is used to lock the traveling mechanism assembly on the track where the traveling mechanism assembly is placed.

[0006] Further, the sliding longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley further includes an eighth fixed pulley. The eighth fixed pulley is installed longitudinally in line with the fifth fixed pulley and the sixth fixed pulley on the top of the tunnel and is located in front of the traveling mechanism assembly. The sliding longitudinal beam suspension steel wire rope passes around the eighth fixed pulley and is connected to the third electric hoist.

[0007] Further, the sliding longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley further includes two pull rods. The two pull rods are arranged along the length direction of the secondary lining trolley. A clamping groove for downwardly clamping the sliding longitudinal beam is arranged at the outer end of the pull rod. The inner end of the pull rod is movably inserted into a pitching block. The pitching block is rotatably connected to a double-ear hinge seat. The double-ear hinge seat is connected to the bolt mounting hole of the top cross beam of the portal frame of the secondary lining trolley. A nut is screwed on the inner end of the pull rod, and the nut abuts against the inner side of the pitching block.

[0008] Further, the two inner side surfaces of the clamping groove are arc-shaped and are provided with a rubber layer.

[0009] Advantages of the utility model: Compared with the prior art, for the assembly of the sliding longitudinal beam at the top of the secondary lining trolley in a single-track tunnel with a narrow space, adopting the assembly structure of the utility model can quickly realize the rapid installation of the top sliding longitudinal beam, greatly improve the installation efficiency, reduce 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 can cooperate with the assembly to realize the position adjustment of the sliding longitudinal beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of a secondary lining construction trolley for a single-track railway tunnel;

[0011] Figure 2 It is a three-dimensional structural schematic diagram of the traveling gantry of a secondary lining construction trolley for a single-track railway tunnel;

[0012] Figure 3 It is a front-view structural schematic diagram of a suspension assembly device for a sliding longitudinal beam of a secondary lining trolley for a single tunnel;

[0013] Figure 4 It is a front-view structural schematic diagram of a suspension assembly device for a sliding longitudinal beam of a secondary lining trolley for a single tunnel (after the installation part of the traveling gantry);

[0014] Figure 5 It is a right-view installation structural schematic diagram of a suspension assembly device for a sliding longitudinal beam of a secondary lining trolley for a single tunnel;

[0015] Figure 6 It is a schematic diagram of the installation structure of a pull rod;

[0016] Figure 7 It is a side-view structural schematic diagram of a pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The invention will be further introduced below with reference to the accompanying drawings and specific embodiments.

[0018] 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 a bottom longitudinal beam 102. When the bottom longitudinal beam 102 is in use, multiple screw jacks 16 need to be arranged at the bottom, and the screw jacks 16 are connected to the ground through a portal support frame 17. The two free ends at the bottom of multiple portal frames 101 are fixedly connected to the two bottom longitudinal beams 102 and are evenly arranged along the length direction of the bottom longitudinal beam 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.

[0019] 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 longitudinal beams 111 and upper sliding longitudinal beams 116 are provided at the bottoms of both the left-section top arch and the right-section top arch. The sliding longitudinal beams 111 and the upper sliding longitudinal beams 116 are used to support and slide the arch top structure.

[0020] Example 1: Regarding the installation of the sliding longitudinal beam of the above trolley structure, as Figures 3-7, the specific structure of the slip longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley includes a slip longitudinal beam suspension steel wire rope 2303 and an electric hoist 2304. Two slip longitudinal beam suspension steel wire ropes 2303 are used on one side, and the two ends are longitudinally tied to both ends of the slip longitudinal beam. The other end is 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 slip longitudinal beam to the top of the portal frame for installation. It also includes two auxiliary cross beams 2311 fixedly connecting the front and rear ends of the two bottom longitudinal beams. 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. The traveling mechanism assembly is locked on the track by iron shoes 2315, which is convenient for placing the slip longitudinal beam after positioning. It also includes an eighth fixed pulley 2314, which is installed longitudinally consistent with the fifth fixed pulley 2309 and the sixth fixed pulley 2310 on the top of the tunnel and is located in front of the traveling mechanism assembly. The slip longitudinal beam suspension steel wire rope 2303 passes around the eighth fixed pulley 2314 and is connected to the third electric hoist 2304. Furthermore, a section of the slip longitudinal beam suspension steel wire rope 2303 passing around the fixed pulley is far from the slip longitudinal beam, which can avoid interference between the slip longitudinal beam suspension steel wire rope 2303 and the suspended slip longitudinal beam and affect the suspension of the slip longitudinal beam. It also includes two tie rods 2317, which are arranged along the length direction of the secondary lining trolley. A clamping groove 2318 for downwardly clamping the slip longitudinal beam is provided at the outer end of the tie rod 2317. The inner end of the tie rod 2317 is movably inserted into the pitching block 2319. The pitching block 2319 is rotatably connected to the double-ear hinge seat 2320. The double-ear hinge seat 2320 is connected to the bolt mounting hole of the top cross beam 104 of the portal frame 101 of the secondary lining trolley. A nut 2321 is screwed on the inner end of the tie rod 2317, and the nut 2321 abuts against the inner side of the pitching block 2319. During use, the double-ear hinge seat 2320 is connected and fixed at the bolt mounting hole by bolts. The operating clamping groove is inserted into the suspended slip longitudinal beam, and the nut is rotated. The slip longitudinal beam is pulled above the horizontal section on one side of the top cross beam 104. The suspension rope is controlled to lower the slip longitudinal beam to a suitable position, and the pitching block 2319 rotates accordingly, so that the tie rod always adapts to the lowering of the pitching and slipping longitudinal beam. This tie rod can effectively pull the suspended slip longitudinal beam to a suitable position for lowering, avoiding poor safety caused by manual operation, and being time-saving, labor-saving, and convenient to operate. After use, it can be disassembled, and the loading and unloading are convenient and fast. The two inner side surfaces of the clamping groove 2318 are arc-shaped and provided with a rubber layer, which can play a good protective role when clamping the slip longitudinal beam.

[0021] Embodiment 2: For the installation of the above-mentioned trolley structure, as Figures 3-5, the specific structure of the single-line tunnel secondary lining trolley skeleton auxiliary assembly suspension device includes a gantry suspension steel wire rope 2301, an upper longitudinal beam suspension steel wire rope 2302, a 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 two upper longitudinal beam suspension steel wire ropes 2302 on one side is tied to 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 ground 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 is installed in the middle of the top side of the tunnel in the front and back with the first fixed pulley 2305. 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 traveling mechanism assembly at the screw jack installation holes at both ends of the bottom of the bottom longitudinal beam connected with four traveling mechanisms, and can stably travel 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 traveling mechanism assembly to the corresponding position, remove the auxiliary traveling wheels, and lower the gantry for installation at the corresponding position. It also includes auxiliary traveling wheels 2313 that are detachably fixedly connected to the bottoms of the two columns of the gantry. Installing the auxiliary traveling wheels is convenient for dragging during suspension. It also includes an eighth fixed pulley 2314. The eighth fixed pulley 2314 is installed longitudinally in line 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 traveling 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 an auxiliary support block 2316. The auxiliary support block 2316 is located behind the walking mechanism assembly and has a ramp surface 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.

[0022] 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 of the vault part by using the existing hoisting equipment, which greatly improves the installation efficiency and reduces the installation difficulty. An auxiliary cross beam is used to connect the two bottom longitudinal beams and form a walking mechanism assembly with a frame structure with the walking power mechanism, which is more stable during walking and can further improve the installation efficiency.

[0023] 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 front top of the traveling mechanism assembly, a seventh fixed pulley 2312 is located at the rear top of the traveling mechanism assembly, an eighth fixed pulley 2314 is located in front of the traveling mechanism assembly, and fifth and sixth fixed pulleys 2309 and 2310 are arranged in two rows and are respectively located above the outer sides of the left and right of the traveling mechanism assembly. Second and third fixed pulleys 2306 and 2307 are arranged in two groups and are 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 portal frame 101, the top of the portal frame 101 is tied with a portal frame suspension steel wire rope, and the first electric hoist 2304 is controlled to lift it to a suspended position. The auxiliary traveling wheels 2313 are removed, and the traveling mechanism assembly is controlled to move towards the side where the suspended portal frame 101 is located. When it moves to the installation position of the first portal frame 101 at the front side, it stops and is locked (locked with an auxiliary iron shoe 2315). The positions of the hoist 2304 and the two columns 105 of the portal frame 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 portal frame suspension steel wire rope 2301 is removed, the locked state of the traveling mechanism assembly is released, and the traveling mechanism assembly is controlled to retreat to the initial position. The second portal frame 101 is continuously suspended, and the installation process of the second portal frame 101 adopts the installation process of the first portal frame 101 to complete the installation of the second portal frame 101. It moves to the installation position of the upper longitudinal beam 103 between the first portal frame 101 and the second portal frame 101. The upper longitudinal beam suspension steel wire rope 2302 is tied to the corresponding upper longitudinal beam 103 for suspension. After being suspended above the top cross beam 104 of the portal frame 101, the rotation direction is manually controlled and it is lowered to the installation position, and it is locked with the two portal frames 101 with bolts. After completing the installation of the upper longitudinal beam 103 between the first portal frame 101 and the second portal frame 101, the installation of the third portal frame 101 and the installation of the upper longitudinal beam 103 between the third portal frame 101 and the second portal frame 101 are carried out. This is repeated in sequence. After completing the installation of the last portal frame 101 and the upper longitudinal beam 103 and the installation of adjacent two portal frames 101, a fork-shaped scissors support 122 is fixedly connected between the adjacent two portal frames 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 portal frame is completed.And an operation 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.

[0024] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A sliding longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley, characterized in that: It includes a sliding longitudinal beam suspension steel wire rope (2303) and an electric hoist (2304). Two steel wire ropes are used on one side of the sliding longitudinal beam suspension steel wire rope (2303). The two ends are longitudinally tied to both ends of the sliding longitudinal beam. The other end is 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 wall.

2. The slip longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley according to claim 1, characterized in that: It also includes two auxiliary cross beams (2311) fixedly connecting the front and rear ends of the two bottom longitudinal beams. 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.

3. The slip longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley according to claim 2, characterized in that: The traveling mechanism assembly is locked on the track by an iron shoe (2315).

4. The slip longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley according to claim 1, characterized in that: It also includes two pull rods (2317). The two pull rods (2317) are arranged along the length direction of the secondary lining trolley. A clamping groove (2318) for downwardly clamping the sliding longitudinal beam is provided at the outer end of the pull rod (2317). The inner end of the pull rod (2317) is movably inserted into the pitching block (2319). The pitching block (2319) is rotatably connected to the double-ear hinge seat (2320). The double-ear hinge seat (2320) is connected to the bolt mounting hole of the top cross beam (104) of the portal frame (101) of the secondary lining trolley. A nut (2321) is screwed on the inner end of the pull rod (2317), and the nut (2321) abuts against the inner side of the pitching block (2319).

5. The slip longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley according to claim 1, characterized in that: The two inner side surfaces of the clamping groove (2318) are arc-shaped and provided with a rubber layer.

6. The slip longitudinal beam suspension assembly device for a single-tunnel secondary lining trolley according to claim 1, characterized in that: It also includes an eighth fixed pulley (2314). The eighth fixed pulley (2314) is installed longitudinally in line with the fifth fixed pulley (2309) and the sixth fixed pulley (2310) on the top of the tunnel and is located in front of the traveling mechanism assembly. The sliding longitudinal beam suspension steel wire rope (2303) is connected to the third electric hoist (2304) after passing around the eighth fixed pulley (2314).

Images