Shield tunnel lining erector

Abstract

The shield tunnel lining erector comprises two rails which are oppositely arranged, the two rails are installed in a tunnel through a plurality of sleepers, a portal frame is arranged above the two rails, a fixed formwork is arranged outside the portal frame in a covering mode, and a movable formwork mechanism is arranged at the position, corresponding to the middle of the fixed formwork, of the top of the portal frame. The front-back position of the movable plate on the fixed formwork can be adjusted, the position of the movable plate can be adjusted in real time according to the pouring requirement during construction, a grouting hole is right opposite to the inner wall of the top of a tunnel, other jacking structures do not need to be added, construction is more convenient, meanwhile, the movable plate is connected to the translation frame, the translation frame can be jacked upwards through the oil cylinder, and the construction efficiency is improved. When the translation frame moves upwards, the movable plate can be driven to move upwards synchronously, so that the vertical distance between the movable plate and the inner wall of the top of the tunnel can be adjusted, the movable plate can abut against the inner wall of the top of the tunnel, the movable plate and the inner wall of the top of the tunnel are connected more tightly, concrete pouring forming is facilitated, and the construction effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction equipment, in particular to a shield tunnel lining assembly machine. Background Art

[0002] The use of shield machines to excavate tunnels is a method of tunnel design and construction, and this method is increasingly widely used in my country. The shield machine generally starts from an open-cut foundation pit, enters the stratum to dig and advance, and at the same time constructs the tunnel lining structure, and finally reaches the open-cut foundation pit at the other end of the tunnel to form a through tunnel. The tunnel lining assembly machine is a special equipment that must be used in the secondary lining of the tunnel construction process. It is used for the concrete lining construction of the inner wall of the tunnel. The tunnel lining assembly machine is an indispensable non-standard product for the secondary lining in the tunnel construction process. It mainly includes simple lining assembly machines, fully hydraulic automatic walking lining assembly machines and grid lining assembly machines.

[0003] Prior art publication number CN111396093A provides a tunnel lining trolley, which relates to the technical field of tunnel lining construction. The tunnel lining trolley includes a raised section template and a fixed template; the raised section template is crescent-shaped, and the curved surface of the raised section template can fit the tunnel contour; the raised section template is buckled on the top template of the fixed template, and the raised section template is detachably fixedly connected to the fixed template.

[0004] In the above-mentioned device, the construction is completed by setting up a raised section template to support the top wall of the tunnel. In order to ensure the effect of grouting lining, multiple raised section templates need to be set up. Multiple raised section templates cooperate with each other to completely support the top wall of the tunnel. This tight structure is relatively cumbersome. Multiple raised section templates need to be connected and fixed with the fixed template, which is troublesome to connect. At the same time, due to the complex environment in the tunnel, it is difficult to ensure that the set raised section template can just support the top wall of the tunnel, resulting in poor construction lining effect. Summary of the invention

[0005] The object of the present invention is to provide a shield tunnel lining assembly machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A shield tunnel lining assembly machine comprises two tracks arranged opposite to each other, the two tracks are installed in the tunnel through a number of sleepers, a gantry is arranged above the two tracks, a fixed template is arranged on the outer cover of the gantry, a movable template mechanism is arranged at the middle position of the fixed template corresponding to the top of the gantry, the movable template mechanism comprises a movable plate, the movable plate is arranged on the upper surface of the fixed template, the movable plate can slide forward and backward in the horizontal direction of the fixed template, and the movable plate can slide downward in the vertical direction of the fixed template.

[0008] As a further solution of the present invention: the fixed template includes side panels and a top panel, and the side panels are provided in two and are respectively located on the left and right sides of the door frame; the top panel is an arc-shaped structure and is integrally formed on the top of the two side panels; the two side panels and the top panel cooperate with and surround to form an arched cavity; the door frame is placed in the cavity; two guide grooves penetrating up and down are provided on the inner wall of the top panel; the two guide grooves are arranged opposite to each other and are respectively located on both sides of the upper surface of the top panel; sealing strips are detachably connected to the two guide grooves.

[0009] As a further solution of the present invention: the movable plate is an arc-shaped structure, and its outer shape is adapted to the shape of the top plate. Both ends of the movable plate extend downward to form two extension parts, and the two extension parts slide through the guide groove on the corresponding side and extend to one side of the portal frame. A third grouting hole is opened on the inner wall of the movable plate, and concrete can be poured into the inner wall of the tunnel top through the third grouting hole.

[0010] As a further solution of the present invention: the movable template mechanism also includes a translation frame and a base plate, the translation frame is arranged directly above the base plate, and the base plate is fixed to the top of the door frame by bolts, the translation frame is a frame-shaped structure, and telescopic rods are installed at the four corners of its bottom, the bottom ends of the four telescopic rods are fixed to the base plate, and an oil cylinder is installed in the middle position of the top of the base plate, and the output end of the oil cylinder extends to one side of the translation frame and is connected and fixed to the translation frame.

[0011] As a further solution of the present invention: a sliding groove is opened on the inner wall of the translation frame corresponding to one side of the two extension parts, a screw is rotatably connected inside one of the two sliding grooves, and a sliding rod is fixed inside the other one, the bottom ends of the two extension parts are respectively inserted into the sliding grooves on the corresponding side, the bottom end of one of the two extension parts is threadedly sleeved on the screw, and the bottom end of the other extension part is slidably sleeved on the sliding rod, a motor is embedded and installed on the side of the translation frame corresponding to the screw, and one end of the motor output shaft is connected and fixed to one end of the screw.

[0012] As a further solution of the present invention: the door frame includes a plurality of columns and a cross beam, the plurality of columns are divided into two groups, respectively located on both sides of the bottom of the cross beam, and the top ends of the plurality of columns are connected and fixed to the cross beam, the plurality of columns on adjacent sides are connected and fixed by brackets, and the bottoms of the brackets on both sides are symmetrically equipped with a plurality of rollers, the plurality of rollers are respectively rollingly connected to the tracks on the corresponding side, and two connecting beams are fixed to the outsides of the plurality of columns located on both sides, and the two connecting beams are arranged opposite to each other up and down for connecting the fixed template.

[0013] As a further solution of the present invention: the door frame is connected and fixed to the side plate on the corresponding side through the upper and lower connecting beams on both sides thereof.

[0014] As a further solution of the present invention: a plurality of first grouting holes and a plurality of second grouting holes are respectively opened on the inner walls of the side panels and the top panel, and the first grouting holes and the second grouting holes are used in combination to pour concrete into the inner wall of the tunnel from both sides of the portal frame and from the upper side of the portal frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, the movable plate can be moved back and forth by rotating the screw rod through a motor and by using it in conjunction with a slide rod, etc., to adjust the front-to-back distance between the movable plate and the inner wall of the tunnel top. The front-to-back position of the movable plate on the fixed template is adjustable. During construction, the position of the movable plate can be adjusted in real time according to the need for pouring, so that the grouting hole is directly opposite to the inner wall of the tunnel top, without adding other tightening structures, which is more convenient for construction. Furthermore, the movable plate is connected to the translation frame, and the translation frame can be lifted upward by an oil cylinder. When the translation frame moves upward, it will drive the movable plate to move upward synchronously, so that the upper and lower distances between the movable plate and the inner wall of the tunnel top can be adjusted, so that the movable plate can be against the inner wall of the tunnel top. The movable plate is more tightly connected to the inner wall of the tunnel top, which is conducive to concrete pouring and molding, and the construction effect is better.

[0017] 2. In the present invention, two connecting beams are arranged on both sides of the door frame, and the two connecting beams are arranged opposite to each other up and down. The two side panels and the top panel cooperate and surround to form an arched cavity. The door frame is placed in the cavity, and the door frame is connected and fixed to the side panel on the corresponding side through the upper and lower connecting beams on both sides thereof. The fixing method can be bolt connection. After the connecting beam is connected to the side panel, the connecting beam will resist the side panel to prevent the side panel from sinking inward, which is beneficial to concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the door frame in the present invention.

[0021] Figure 3 It is a structural schematic diagram of the fixed template in the present invention.

[0022] Figure 4 It is a structural schematic diagram of the movable template mechanism in the present invention.

[0023] Figure 5 It is a top view schematic diagram of the movable template mechanism in the present invention.

[0024] Figure 6 It is a front view schematic diagram of the movable template mechanism in the present invention.

[0025] Notes on figure numbers: 1-track, 2-sleeper, 3-fixed formwork, 31-side panel, 32-first grouting hole, 33-top panel, 34-second grouting hole, 35-guide groove, 36-sealing strip, 4-movable formwork mechanism, 41-movable plate, 42-third grouting hole, 43-extension portion, 44-translational frame, 45-telescopic rod, 46-bottom plate, 47-slide groove, 48-screw rod, 49-slide rod, 410-motor, 411-cylinder, 5-gantry, 51-column, 52-roller, 53-cross beam, 54-connecting beam. DETAILED DESCRIPTION

[0026] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0027] See also Figure 1 In an embodiment of the present invention, a shield tunnel lining assembly machine includes two tracks 1 arranged opposite to each other, the two tracks 1 are installed in a tunnel through a plurality of sleepers 2, the distance between the two tracks 1 is smaller than the width of the tunnel, a portal 5 is arranged above the two tracks 1, a fixed template 3 is arranged on the outer cover of the portal 5, and a movable template mechanism 4 is arranged at the middle position of the top of the portal 5 corresponding to the fixed template 3.

[0028] See also Figure 2 The door frame 5 includes a plurality of columns 51 and a cross beam 53. The plurality of columns 51 are divided into two groups and are respectively located on both sides of the bottom of the cross beam 53. The top ends of the plurality of columns 51 are connected and fixed to the cross beam 53. The plurality of columns 51 on adjacent sides are connected and fixed by brackets, and a plurality of rollers 52 are symmetrically installed at the bottom of the brackets on both sides. The plurality of rollers 52 are respectively connected and rolled on the corresponding side tracks 1. Two connecting beams 54 are fixed to the outside of the plurality of columns 51 on both sides. The two connecting beams 54 are arranged opposite to each other up and down for connecting and fixing the template 3.

[0029] See also Figure 3The fixed template 3 includes a side plate 31 and a top plate 33. The side plates 31 are provided in two pieces, which are respectively located on the left and right sides of the door frame 5. The top plate 33 is an arc-shaped structure and is integrally formed on the top of the two side plates 31. The two side plates 31 and the top plate 33 cooperate and surround to form an arched cavity. The door frame 5 is placed in the cavity, and the door frame 5 is connected and fixed to the side plate 31 on the corresponding side through the upper and lower connecting beams 54 on both sides thereof. The fixing method can be bolt connection. After the connecting beam 54 is connected to the side plate 31, the connecting beam 54 will resist the side plate 31 to prevent the side plate 31 from being concave inward.

[0030] A plurality of first grouting holes 32 and a plurality of second grouting holes 34 are respectively provided on the inner walls of the side plates 31 and the top plate 33. The first grouting holes 32 and the second grouting holes 34 are used in combination to pour concrete from both sides of the portal frame 5 and from the upper side of the portal frame 5 to the inner wall of the tunnel. After the concrete solidifies, a lining sheet is formed to support the inner wall of the tunnel. Two guide grooves 35 that pass through the top plate 33 are provided on the inner wall of the top plate 33. The two guide grooves 35 are arranged opposite to each other and are respectively located on both sides of the upper surface of the top plate 33. Sealing strips 36 are detachably connected to the two guide grooves 35. The sealing strips 36 are arranged in the guide grooves 35. The length and shape of the sealing strips 36 can be selected as needed. The sealing strips 36 are buried in the groove during pouring to prevent mud from dripping downward from the groove when concrete is poured.

[0031] See also Figure 4 , Figure 5 , Figure 6 The movable template mechanism 4 includes a movable plate 41, which is an arc-shaped structure, and its shape is adapted to the shape of the top plate 33. The movable plate 41 is slidably connected to the upper surface of the top plate 33. Both ends of the movable plate 41 extend downward to form two extensions 43. The two extensions 43 slide through the guide groove 35 on the corresponding side and extend to one side of the door frame 5. A third grouting hole 42 is opened on the inner wall of the movable plate 41, and concrete can be poured into the inner wall of the tunnel top through the third grouting hole 42;

[0032] The movable template mechanism 4 also includes a translation frame 44 and a bottom plate 46. The translation frame 44 is arranged directly above the bottom plate 46, and the bottom plate 46 is fixed to the top of the door frame 5 by bolts. The translation frame 44 is a frame-shaped structure, and telescopic rods 45 are installed at the four corners of the bottom thereof. The bottom ends of the four telescopic rods 45 are fixed to the bottom plate 46. A cylinder 411 is installed at the middle position of the top of the bottom plate 46. The output end of the cylinder 411 extends to one side of the translation frame 44 and is connected and fixed to the translation frame 44. The translation frame 44 can be lifted upward by the coordinated use of the cylinder 411 and the telescopic rod 45.

[0033] A slide groove 47 is provided on the inner wall of the translation frame 44 corresponding to one side of the two extensions 43. A screw rod 48 is rotatably connected inside one of the two slide grooves 47, and a slide rod 49 is fixed inside the other. The bottom ends of the two extensions 43 are respectively inserted into the slide grooves 47 on the corresponding side. The bottom end of one of the two extensions 43 is threadedly sleeved on the screw rod 48, and the bottom end of the other extension 43 is slidably sleeved on the slide rod 49. A motor 410 is embedded and installed on one side of the translation frame 44 corresponding to the screw rod 48, and one end of the output shaft of the motor 410 is fixedly connected to one end of the screw rod 48.

[0034] In this embodiment, the screw rod 48 is rotated by the motor 410 and used in conjunction with the slide rod 49, etc., to move the movable plate 41 back and forth, and adjust the front and rear distance between the movable plate 41 and the inner wall of the tunnel top. The front and rear position of the movable plate 41 on the fixed template 3 is adjustable. During construction, the position of the movable plate 41 can be adjusted in real time according to the pouring needs, so that the grouting hole is directly opposite to the inner wall of the tunnel top. There is no need to add other tightening structures, which is more convenient for construction. At the same time, the movable plate 41 is connected to the translation frame 44, and the translation frame 44 can be lifted upward by the cylinder 411. When the translation frame 44 moves up, it will drive the movable plate 41 to move up synchronously, so that the upper and lower distances between the movable plate 41 and the inner wall of the tunnel top can be adjusted, so that the movable plate 41 can be against the inner wall of the tunnel top. The movable plate 41 is more tightly connected to the inner wall of the tunnel top, which is conducive to concrete pouring and molding, and the construction effect is better.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shield tunnel lining assembly machine, comprising two tracks (1) arranged opposite to each other, the two tracks (1) being installed in a tunnel via a plurality of sleepers (2), characterized in that: A door frame (5) is arranged above the two rails (1), and a fixed template (3) is arranged on the outer cover of the door frame (5). A movable template mechanism (4) is arranged at the middle position of the top of the door frame (5) corresponding to the fixed template (3). The movable template mechanism (4) includes a movable plate (41). The movable plate (41) is arranged on the upper surface of the fixed template (3). The movable plate (41) can slide forward and backward along the horizontal direction of the fixed template (3), and the movable plate (41) can slide downward along the vertical direction of the fixed template (3).

2. The shield tunnel lining assembly machine according to claim 1, characterized in that: The fixed template (3) includes a side plate (31) and a top plate (33). The side plates (31) are provided in two pieces and are respectively located on the left and right sides of the door frame (5). The top plate (33) is an arc-shaped structure and is integrally formed on the top of the two side plates (31). The two side plates (31) and the top plate (33) cooperate with each other and surround to form an arched cavity. The door frame (5) is placed in the cavity. Two guide grooves (35) that penetrate up and down are provided on the inner wall of the top plate (33). The two guide grooves (35) are arranged opposite to each other and are respectively located on the two sides of the upper surface of the top plate (33). Sealing strips (36) are detachably connected to the two guide grooves (35).

3. The shield tunnel lining assembly machine according to claim 2, characterized in that: The movable plate (41) is an arc-shaped structure, and its shape is adapted to the shape of the top plate (33). Both ends of the movable plate (41) extend downward to form two extension parts (43). The two extension parts (43) slide through the guide groove (35) on the corresponding side and extend to one side of the door frame (5). A third grouting hole (42) is opened on the inner wall of the movable plate (41), and concrete can be poured into the inner wall of the tunnel top through the third grouting hole (42).

4. The shield tunnel lining assembly machine according to claim 3, characterized in that: The movable template mechanism (4) also includes a translation frame (44) and a base plate (46). The translation frame (44) is arranged directly above the base plate (46), and the base plate (46) is fixed to the top of the door frame (5) by bolts. The translation frame (44) is a frame-shaped structure, and telescopic rods (45) are installed at the four corners of its bottom. The bottom ends of the four telescopic rods (45) are fixed on the base plate (46). An oil cylinder (411) is installed in the middle position of the top of the base plate (46), and the output end of the oil cylinder (411) extends to one side of the translation frame (44) and is connected and fixed to the translation frame (44).

5. The shield tunnel lining assembly machine according to claim 4, characterized in that: A slide groove (47) is provided on the inner wall of the translation frame (44) corresponding to one side of the two extension parts (43); a screw rod (48) is rotatably connected inside one of the two slide grooves (47), and a slide rod (49) is fixed inside the other one; the bottom ends of the two extension parts (43) are respectively inserted into the slide groove (47) on the corresponding side; the bottom end of one of the two extension parts (43) is threadedly sleeved on the screw rod (48), and the bottom end of the other extension part (43) is slidably sleeved on the slide rod (49); a motor (410) is embedded and installed on the side of the translation frame (44) corresponding to the screw rod (48), and one end of the output shaft of the motor (410) is connected and fixed to one end of the screw rod (48).

6. The shield tunnel lining assembly machine according to claim 5, characterized in that: The door frame (5) comprises a plurality of columns (51) and a crossbeam (53), wherein the plurality of columns (51) are divided into two groups and are respectively located on both sides of the bottom of the crossbeam (53), and the top ends of the plurality of columns (51) are connected and fixed to the crossbeam (53), and the plurality of columns (51) on adjacent sides are connected and fixed by brackets, and the bottoms of the brackets on both sides are symmetrically provided with a plurality of rollers (52), and the plurality of rollers (52) are respectively rollingly connected to the track (1) on the corresponding side, and two connecting beams (54) are fixed to the outside of the plurality of columns (51) on both sides, and the two connecting beams (54) are arranged opposite to each other up and down and are used to connect the fixed template (3).

7. The shield tunnel lining assembly machine according to claim 6, characterized in that: The door frame (5) is connected and fixed to the side plate (31) on the corresponding side through the upper and lower connecting beams (54) on both sides thereof.

8. The shield tunnel lining assembly machine according to claim 2 or 6, characterized in that: A plurality of first grouting holes (32) and a plurality of second grouting holes (34) are respectively provided on the inner walls of the side plates (31) and the top plates (33); the first grouting holes (32) and the second grouting holes (34) are used in combination to pour concrete into the inner wall of the tunnel from both sides of the portal frame (5) and from the upper side of the portal frame (5).

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