An automatic concrete finishing device for tunnel shield segment

Abstract

The present invention provides an automatic plastering device for tunnel shield segment concrete, which relates to the technical field of shield segment concrete production, and solves the technical problems of poor quality, low efficiency and high labor intensity of manual plastering. The automatic plastering device for tunnel shield segment concrete includes a first support frame assembly, a second support frame assembly is movably arranged on the first support frame assembly, a boom assembly is movably arranged on the second support frame assembly, a third support frame assembly is arranged on the boom assembly, and an automatic plastering device and a contouring motion device are installed on the third support frame assembly. The present invention is used for plastering the outer surface of the shield segment, and the channel steel smoothes the outer surface of the segment through reciprocating motion, realizing automatic plastering and leveling operations, greatly improving work efficiency, reducing labor intensity, and having the characteristics of high operation quality.

Description

Technical Field

[0001] The invention relates to the technical field of shield segment concrete production, in particular to an automatic facing device for tunnel shield segment concrete. Background Art

[0002] The shield segment is the main component of the shield tunnel, bearing the pressure and waterproof performance of the soil layer. The quality of the segment is directly related to the overall quality and safety performance of the tunnel. A key step in the production of precast concrete shield segments is to smooth the outer surface of the segment. The quality of the smoothing work not only directly affects the appearance quality of the segment, but also affects the anti-permeability and durability of the segment. At present, this process is mainly completed by manpower. Workers rely on manual repeated pushing and pulling tools to smooth the surface of the segment along the arc surface of the mold, repeating many times until the outer surface of the segment is smooth. This working method not only cannot guarantee the quality of the segment, but also has low efficiency and high labor intensity. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic concrete plastering device for tunnel shield segments, so as to solve the technical problems of poor quality, low efficiency and high labor intensity of manual plastering in the prior art.

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

[0005] The present invention provides an automatic concrete plastering device for tunnel shield segments, comprising a first support frame assembly, on which a second support frame assembly is movably arranged, on which a boom assembly is movably arranged, on which a third support frame assembly is arranged, and on which an automatic plastering device and a contour-copying motion device are installed.

[0006] As a further improvement of the present invention, the first support frame assembly includes two parallel foundations, two door-shaped frames are erected between the two foundations, and two side-by-side beams are connected between the two frames; the second support frame assembly is movably arranged on the two beams.

[0007] As a further improvement of the present invention, the second support frame assembly includes a boom support frame, and the boom support frame is movably mounted on the outer sides of the two cross beams of the first support frame assembly. A first drive motor is also arranged on the boom support frame, and the first drive motor is connected to the two cross beams through a first transmission assembly, so as to drive the boom support frame to reciprocate along the axial direction of the cross beam.

[0008] As a further improvement of the present invention, the boom assembly includes a coaxially sleeved boom and a forearm, and the forearm can be telescoped relative to the boom; the boom is movably arranged on the second support frame assembly, and the boom assembly also includes a second drive motor placed on the second support frame assembly, and the second drive motor is connected to the boom through a second transmission assembly, and can drive the boom to perform lifting and reciprocating movements relative to the second support frame assembly.

[0009] As a further improvement of the present invention, the third support frame assembly includes a frame-type mounting frame, the contour-copying motion device is hinged on both sides of the mounting frame, and is connected to the automatic wiping device located inside the mounting frame.

[0010] As a further improvement of the present invention, the contour-matching motion device includes a semicircular leg, a closing plate is provided on one side of the leg, and a roller group is installed on the two free ends of the leg, and the multiple rollers in the roller group are arranged in a curved arc shape, and the axis connecting line thereof is an arc shape; the upper part of the closing plate is hinged to the mounting frame, and also includes a limiting guide column arranged on the lower side of the closing plate, and a limiting guide groove arranged at a corresponding position of the mounting frame, the limiting guide groove is in a curved arc shape, and the limiting guide column slides through the limiting guide groove.

[0011] As a further improvement of the present invention, the automatic plastering device includes a plastering support plate, which is horizontally arranged and has two ends respectively connected to the contour-matching motion device; it also includes a third drive motor installed on the plastering support plate, and an optical axis connecting rod suspended below the plastering support plate and capable of axially reciprocating motion relative to the plastering support plate, and a plastering channel steel is suspended below the optical axis connecting rod through a channel steel floating connecting rod assembly; the third drive motor is transmission-connected to the optical axis connecting rod through a third transmission assembly; it also includes a pressure wheel support rod assembly movably passed through the mounting frame and the plastering support plate and pressed on the plastering channel steel; a clearance groove for the plastering channel steel to enter and exit is provided at the bottom of the closing plate corresponding to the position of the plastering channel steel, and guide wheels are respectively provided on the outer side of the closing plate corresponding to the positions on both sides of the clearance groove.

[0012] As a further improvement of the present invention, the channel steel floating connecting rod assembly includes an optical axis connecting block and a connecting optical axis. The upper part of the optical axis connecting block is sleeved on the optical axis connecting rod. A telescopic blind hole is provided at the bottom of the optical axis connecting block. One end of the connecting optical axis can be telescopically inserted into the telescopic blind hole, and the other end is connected to the plastered channel steel.

[0013] As a further improvement of the present invention, the pressure roller support rod assembly includes a counterweight adjustment frame, a counterweight block, a weight support rod guide block, a weight support rod, a pressure roller support rod guide bearing, a pressure roller support rod and a bearing rubber wheel. The counterweight adjustment frame is fixed on the top of the mounting frame, and the counterweight block is movably clamped in the counterweight adjustment frame to be able to move up and down in the vertical direction; the weight support rod guide block is movably clamped in the counterweight adjustment frame to be able to move laterally in the horizontal direction; the top of the weight support rod passes through the weight support rod guide block and abuts against the bottom of the counterweight block, and the lower part passes through the counterweight adjustment frame and is hinged to the pressure roller support rod; the pressure roller support rod guide bearing is sleeved on the outside of the pressure roller support rod, and the top is connected to the bottom of the plastering support plate, the bearing rubber wheel is installed at the bottom of the pressure roller support rod, and the bearing rubber wheel rolls in contact with the plastering channel steel.

[0014] As a further improvement of the present invention, the counterweight adjustment frame includes a U-shaped bottom plate, a waist-shaped hole is opened on the U-shaped bottom plate, and limiting plates are respectively arranged on both sides of the narrow side of the waist-shaped hole. The limiting plate is an L-shaped structure, and a limiting space is formed between the limiting plate and the U-shaped bottom plate. The height of the limiting space is equal to or slightly greater than the thickness of the guide block of the weight support rod.

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

[0016] The automatic plastering device for tunnel shield segment concrete provided by the present invention replaces manual plastering and leveling of concrete on the surface of the mold. The plastering channel steel is driven by a motor to realize the lateral left and right reciprocating motion of the channel steel. The mounting frame is moved by a driving device connected to the upper end to perform horizontal and lifting movements. The contouring motion device is driven by the mounting frame to move along the outer arc surface of the mold to achieve smoothing of the outer surface of the entire shield segment, thereby realizing automatic plastering and leveling operations, greatly improving work efficiency, reducing labor intensity, and having the characteristics of high operation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the automatic concrete finishing device for tunnel shield segments of the present invention;

[0019] Figure 2 It is a partial structural schematic diagram of the automatic concrete finishing device for tunnel shield segments of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the boom assembly in the automatic concrete finishing device for tunnel shield segments of the present invention;

[0021] Figure 4 It is a schematic diagram of a partial explosion structure of the automatic concrete finishing device for tunnel shield segments of the present invention;

[0022] Figure 5 It is a structural schematic diagram of an automatic finishing device in the automatic finishing device for concrete finishing of a tunnel shield segment of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the contour motion device in the automatic concrete finishing device for tunnel shield segments of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the contour motion device in the automatic concrete finishing device for tunnel shield segments of the present invention viewed from the other side;

[0025] Figure 8 It is a structural schematic diagram of the pressure wheel support rod assembly in the automatic concrete finishing device for tunnel shield segments of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of a counterweight adjustment frame in the automatic concrete finishing device for tunnel shield segments of the present invention;

[0027] Fig.10 It is an exploded view of the counterweight adjustment frame in the automatic concrete finishing device for tunnel shield segments of the present invention;

[0028] Fig.11 It is a partial structural schematic diagram of the automatic facing device of the automatic facing device for concrete of the tunnel shield segment of the present invention;

[0029] Fig.12 It is a structural schematic diagram of the facing channel steel in the automatic facing device for concrete facing of tunnel shield segments of the present invention;

[0030] Fig.13 It is a schematic diagram of the exploded structure of the channel steel floating connecting rod assembly in the automatic concrete finishing device for tunnel shield segments of the present invention.

[0031] In the figure, 1, the first support frame assembly; 11, the foundation; 12, the frame; 13, the crossbeam; 2, the second support frame assembly; 21, the boom support frame; 22, the first drive motor; 3, the boom assembly; 31, the big arm; 32, the small arm; 33, the second drive motor; 4, the third support frame assembly; 5, the automatic plastering device; 51, the plastering support plate; 53, the third drive motor; 54, the optical axis connecting rod; 55, the channel steel floating connecting rod assembly; 551, the optical axis connecting block; 552, the connecting optical axis; 553, the channel steel optical axis connecting sleeve; 56, the plastering channel steel; 57, Crankshaft connecting rod mechanism; 58, pressure roller support rod assembly; 581, counterweight adjustment frame; 5811, U-shaped bottom plate; 5812, limit plate; 582, counterweight block; 583, weight support rod guide block; 584, weight support rod; 585, pressure roller support rod guide bearing; 586, pressure roller support rod; 587, bearing rubber wheel; 59, optical axis guide bearing seat; 6, contour motion device; 61, support leg; 62, sealing plate; 63, roller group; 64, limit guide column; 65, limit guide groove; 66, clearance groove; 67, guide wheel; 100, shield segment. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0033] like Figure 1 As shown, the present invention provides an automatic plastering device for tunnel shield segment concrete, comprising a first support frame assembly 1, on which a second support frame assembly 2 is movably arranged, on which a boom assembly 3 is movably arranged, on which a third support frame assembly 4 is arranged, and on which an automatic plastering device 5 and a contour-copying motion device 6 are installed.

[0034] Specifically, the first support frame assembly 1 is used to support the shield segment trolley, so as to smooth the surface of the shield segment 100 on the trolley below it. The second support frame assembly 2 can move horizontally along the first support frame assembly 1, so as to move along the length direction of the shield segment 100. Since the length direction of the shield segment 100 is an arc surface, the automatic finishing device 5 and the profiling motion device 6 are required to be able to move in an arc and always fit on the surface of the shield segment 100 to ensure the smoothing effect. The boom assembly 3 is installed on the second support frame assembly 2. When the second support frame assembly 2 moves horizontally, it will drive the boom assembly 3 to move horizontally. The third support frame assembly 4 is installed at the end of the boom assembly 3, so it also moves together, which also drives the automatic finishing device 5 and the profiling motion device 6 to move along the arc surface of the length direction of the shield segment 100.

[0035] As an optional embodiment of the present invention, the first support frame assembly 1 includes two cement foundations 11 arranged in parallel. The foundations 11 are long strip structures and are arranged on both sides of the trolley, that is, on both sides of the shield segment 100. Two door-shaped frames 12 are erected between the two foundations 11. The two frames 12 are arranged at intervals and span between the two foundations 11. Two beams 13 arranged side by side are connected between the two frames 12; the second support frame assembly 2 is movably arranged on the two beams 13, so that the second support frame assembly 2 can reciprocate relative to the beams 13 along the length direction of the beams.

[0036] As an optional embodiment of the present invention, the second support frame assembly 2 includes a boom support frame 21, which is a hollow rectangular sleeve structure. The boom support frame 21 is movably sleeved on the outside of the two beams 13 of the first support frame assembly 1. The boom support frame 21 is also provided with a first drive motor 22. The first drive motor 21 is connected to the two beams 13 through a first transmission assembly, and can drive the boom support frame 21 to reciprocate along the axial direction of the beam 13. It should be noted here that the first transmission assembly can be a gear rack structure, a gear is installed on the output shaft of the first drive motor 22, and a rack is installed on the inner side of the beam 13. The gear and the rack are meshed. When the first drive motor 22 is running, the fixed support frame 21 can move along the beam 13; the troop deployment assembly 3 is installed in the middle of the boom support frame 21 corresponding to the position between the two beams 13. Of course, the first transmission assembly can also adopt a screw nut structure.

[0037] like Figure 3As shown, as an optional embodiment of the present invention, the boom assembly 3 includes a coaxially sleeved boom 31 and a forearm 32, the forearm 32 can be telescopic relative to the boom 31, and both the boom 31 and the forearm 32 can be made of round tubes or hollow square tubes. In order to ensure the connection strength and stability, an embodiment of the present invention uses a boom 31 and a forearm 32 made of square tubes; the boom 31 is movably arranged on the second support frame assembly 2, and the boom assembly 3 also includes a second drive motor 33 placed on the second support frame assembly 2. The second drive motor 33 is connected to the boom 31 through a second transmission assembly, and can drive the boom 31 to perform lifting reciprocating movements relative to the second support frame assembly 2. It should be noted that the second transmission assembly can adopt a gear rack or a screw nut structure.

[0038] like Figure 2 , Figure 4 and Figure 5 As shown, further, the third support frame assembly 4 includes a frame-type mounting frame, and the contour motion device 6 is hinged on both sides of the mounting frame 41 and connected to the automatic wiping device 5 located inside the mounting frame.

[0039] With the above structure, when in use, the third support frame assembly 4 remains stationary, while the automatic paving device 5 and the contouring motion device 6 move up and down along with the arc shape of the surface of the shield segment 100 .

[0040] like Figure 6 , Figure 7As shown, as an optional embodiment of the present invention, the profiling motion device 6 includes a semicircular leg 61, a sealing plate 62 is provided on one side of the leg 61, and roller groups 63 are installed on the two free ends of the leg 61. The sealing plate 62 seals one end of the internal cavity of the leg 61 and is connected to the mounting frame through the sealing plate 62. In order to ensure that the profiling motion device 6 can move along the surface of the shield segment 100, multiple rollers in the roller group 63 are arranged in an arc shape, and the arc shape should be adapted to the surface curvature of the shield segment 100, that is, the axis connecting line of the multiple rollers is an arc shape; the upper part of the sealing plate 62 is hinged to the mounting frame, and specifically, a roller group 63 is provided on the upper part of the sealing plate 62. The through-hole is provided with reinforcing ribs around the through-hole and between the legs 61. The corresponding position on the mounting frame also has only mounting holes. Bearings can be provided on the mounting holes and the through-holes. Then, the rotating shaft passes through the bearings to realize the hinged connection between the sealing plate 62 and the mounting frame. Furthermore, a torsion spring is provided on the rotating shaft to ensure that the contour-copying motion device 6 is kept vertically in the original position as much as possible. In order to ensure that the deflection angle of the contour-copying motion device 6 will not rotate too much, it also includes a limiting guide column 64 provided on the lower side of the sealing plate 62 and a limiting guide groove 65 provided at the corresponding position of the mounting frame. The limiting guide groove 65 is curved, and the limiting guide column 64 is slidably penetrated in the limiting guide groove 64. Specifically, the limiting guide column 64 is made of steel pipe. When the automatic plastering device 5 is working, the limiting guide column 64 moves in the arc-shaped limiting guide groove 64. The roller group 63 at the bottom of the legs 61 is arranged in an arc shape so as to be able to move smoothly on the outer arc surface of the pipe segment mold.

[0041] As an optional embodiment of the present invention, the automatic plastering device 5 includes a plastering support plate 51, which is horizontally arranged and connected to the contour motion device 6 at both ends through connecting pieces, specifically, the connecting pieces are angle steel connecting seats; it also includes a third drive motor 53 installed on the plastering support plate 51, and also includes an optical axis connecting rod 54 suspended below the plastering support plate 51 and capable of axially reciprocating motion relative to the plastering support plate 51, specifically, the optical axis connecting rod 54 is horizontally arranged along the length direction of the optical axis connecting rod 54 through an optical axis guide bearing seat 59, which guides the movement direction of the optical axis connecting rod 54, and a plastering channel steel 56 is suspended below the optical axis connecting rod 54 through a channel steel floating connecting rod assembly 55, the channel steel floating connecting rod assembly 55 fixes the optical axis connecting rod 54 and the plastering channel steel 56 together, and the channel steel floating connecting rod assembly 55 can float up and down, thereby adjusting the height of the plastering channel steel 56; the third drive motor 53 is driven by a third transmission The third transmission assembly is connected to the optical axis connecting rod 54 by transmission. Specifically, the third transmission assembly here is a crankshaft connecting rod mechanism 57. The output shaft of the third drive motor 53 is connected to the crank connecting rod mechanism 57 by a key connection. The third drive motor 53 transmits power to the crank connecting rod mechanism 57 below; one side of the connecting rod of the crank connecting rod mechanism 57 is connected to the crank and the other side is connected to the optical axis connecting rod 54. The crank connecting rod mechanism 57 converts the rotational motion of the third drive motor 53 into the linear motion of the optical axis connecting rod 54; it also includes a pressure wheel support rod assembly 58 that is movably inserted into the mounting frame and the plastering support plate 51 and pressed on the plastering channel steel 56; a clearance groove 66 for the plastering channel steel 56 to enter and exit is provided at the bottom of the sealing plate 62 corresponding to the position of the plastering channel steel 56, and guide wheels 67 are respectively provided on the outer side of the sealing plate 62 corresponding to the positions on both sides of the clearance groove 66. Specifically, the guide wheel 67 can be supported by a bearing, and the function of the guide wheel 67 is to guide and transmit the plastering channel steel 56.

[0042] like Fig.13 As shown, further, the channel steel floating connecting rod assembly 55 includes an optical axis connecting block 551 and a connecting optical axis 552. The upper part of the optical axis connecting block 551 is sleeved on the optical axis connecting rod 54. The bottom of the optical axis connecting block 551 is provided with a telescopic blind hole. One end of the connecting optical axis 552 is telescopically inserted into the telescopic blind hole, and the other end is connected to the plastered channel steel 56. Further, the channel steel floating connecting rod assembly 55 also includes a channel steel optical axis connecting sleeve 553 sleeved on the bottom of the connecting optical axis 552. The channel steel optical axis connecting sleeve 553 is made of a hollow steel pipe, and a straight notch is provided on the pipe wall. It is connected to the connecting optical axis 552 through a straight notch mounting bolt to prevent the connecting optical axis 552 from falling off from the channel steel optical axis connecting sleeve 553. The lower end of the channel steel optical axis connecting sleeve 553 is welded to the plastered channel steel 56.

[0043] like Figure 8 , Figure 5As shown, further, the pressure wheel support rod assembly 58 includes a counterweight adjustment frame 581, a counterweight block 582, a weight support rod guide block 583, a weight support rod 584, a pressure wheel support rod guide bearing 585, a pressure wheel support rod 586 and a bearing rubber wheel 587. The pressure wheel support rod assembly 58 is in contact with the plastered channel steel 56, and the bearing rubber wheel 587 thereunder can roll in the groove of the plastered channel steel 56; the counterweight adjustment frame 581 is fixed to the top of the mounting frame, and the counterweight block 582 is movably clamped in the counterweight adjustment frame 581 and can be lifted and moved in the vertical direction. It should be noted here that the lifting stroke of the counterweight block 582 does not exceed the height of the limit plate 5812 in the counterweight adjustment frame 581; the weight support rod guide block 583 is movably clamped in the counterweight adjustment frame 581 and can be moved horizontally, but cannot be moved up and down. The top of the weight support rod 584 passes through the weight support rod guide block 583 and abuts against the bottom of the counterweight block 582, and the lower part passes through the counterweight adjustment frame 581 and is hinged to the pressure wheel support rod 586. It should be noted here that a through groove is provided at the bottom of the weight support rod 584, and the top of the pressure wheel support rod 586 is inserted into the groove, and then the two ends are respectively hinged to the weight support rod 584 through a rotating shaft; the pressure wheel support rod guide bearing 585 is sleeved on the outside of the pressure wheel support rod 586, and the top is connected to the bottom of the plastering support plate 51 by bolts, and the bearing rubber wheel 587 is installed at the bottom of the pressure wheel support rod 586, and the bearing rubber wheel 587 is in rolling contact with the plastering channel steel 56. The bearing rubber wheel 587 can not only transfer the weight of the counterweight block 582 to the plastering channel steel 56, but also contact the plastering channel steel 56 smoothly when it swings to reduce friction.

[0044] like Fig. 9 and Fig.10 As shown, further, the counterweight adjustment frame 581 includes a U-shaped bottom plate 5811, a waist-shaped hole is provided on the U-shaped bottom plate 5811, and corresponding to the positions on both sides of the narrow side of the waist-shaped hole, limit plates 5812 are respectively arranged, and the limit plates 5812 are L-shaped structures. A limit space is formed between the limit plates 5812 and the U-shaped bottom plate 5811, and the height of the limit space is equal to or slightly greater than the thickness of the weight support rod guide block 583. It should be noted that the length and width of the limit plates 5812 are both smaller than the length and width of the U-shaped bottom plate 5811, and an I-shaped groove is formed on the upper part of the U-shaped bottom plate 5811 by two limit plates 5812, so that the counterweight block 582 is better fixed in the groove, and the counterweight block 582 is an I-shaped structure, which is just stuck in the I-shaped groove, and the counterweight block 582 can also be guided to move in the gap between the two limit plates 5812.

[0045] The automatic plastering device for tunnel shield segment concrete provided by the present invention replaces manual plastering and leveling of concrete on the surface of the mold. The plastering channel steel is driven by a motor to realize the lateral left and right reciprocating motion of the channel steel. The mounting frame is moved by a driving device connected to the upper end to perform horizontal and lifting movements. The contouring motion device is driven by the mounting frame to move along the outer arc surface of the mold to achieve smoothing of the outer surface of the entire shield segment, thereby realizing automatic plastering and leveling operations, greatly improving work efficiency, reducing labor intensity, and having the characteristics of high operation quality.

[0046] Embodiment 1:

[0047] like Figure 1-Figure 13 As shown, in this embodiment, the automatic plastering device for tunnel shield segment concrete includes a first support frame assembly 1, four vertical support beams (two frames 12) of the first support frame assembly 1 are fixed on a cement foundation 11, and a boom support frame 21 is installed on two cross beams 13 of the first support frame assembly 1; a first drive motor 22 and a hollow square steel boom assembly 3 are installed on the boom support frame 21; the lower end of the boom of the hollow square steel boom assembly 3 is connected to a square tube mounting frame; the square tube mounting frame is used to fix and support the automatic plastering device 5; the two ends of the square tube mounting frame are hingedly connected with a profiling motion device 6, and the profiling motion device 6 is used to move on the arc surface of the shield segment 100; the third drive motor 53 is connected to the crank connecting rod mechanism 57 at the bottom by a key connection, and the third drive motor 53 transmits power to the crank connecting rod mechanism 57 at the bottom; one side of the connecting rod of the crank connecting rod mechanism 57 is connected to the crank and the other side is connected to the optical axis connecting rod 54, and the crank connecting rod mechanism 57 converts the rotational motion of the third drive motor 53 into the optical axis connecting rod 54 is linearly moved; the channel steel floating connecting rod assembly 55 fixes the optical axis connecting rod 54 and the plastered channel steel 56 together, and the channel steel floating connecting rod assembly 55 can float up and down, thereby adjusting the height of the plastered channel steel 56; the optical axis guide bearing seat 59 is horizontally arranged along the direction of the optical axis connecting rod 54, and plays a guiding role in the movement direction of the optical axis connecting rod 54; the pressure wheel support rod assembly 58 is in contact with the plastered channel steel 56, and the bearing rubber wheel 587 under it can roll in the groove of the plastered channel steel 56, and the weight on it The support rod guide block 583 is used to support the counterweight block 582; the plastering support plate 51 is fixedly connected to the third drive motor 53 by bolts, and the two ends of the plastering support plate 51 are fixedly connected to the contour plate motion device 6 by angle steel connecting seats; the groove of the counterweight adjustment frame 581 is I-shaped, which facilitates the counterweight block 582 to be better fixed in the groove, and there are two rectangular raised steel plates, namely the limit plates 5812, which are in an inverted "L" shape, which can guide the counterweight block 582 to move in the gap between the two raised steel plates.

[0048] The hollow square steel boom assembly 3 can move in the length direction of the shield segment 100 under the drive of the first drive motor 22 through the track laid between the two middle beams 13 of the first support frame assembly 1, specifically a rack; the hollow square steel boom assembly 3 can drive the working device connected to the lower end to perform plastering.

[0049] The support leg 61 in the contour motion device 6 is a semicircular arc structure, and the roller group 63 installed at its bottom is arc-shaped. A steel pipe is welded on the sealing plate 62 on the side of the support leg 61, and the steel pipe is placed in the arc-shaped limiting guide groove 65 on one side of the third support frame assembly 4. When the automatic paving device 5 is working, the steel pipe moves in the arc-shaped limiting guide groove 65, and the roller group 63 at the bottom of the support leg 61 is arranged in an arc shape in order to move smoothly on the outer arc surface of the shield segment 100 mold; two optical axes are welded at both ends of the third support frame assembly 4, which are connected to it through the mounting holes set in the sealing plate 62 on the support leg 61, and threaded holes are provided at the ends of the optical axes for installing positioning bolts.

[0050] A bearing rubber wheel 587 is provided at the lower end of the pressure roller support rod assembly 58; the bearing rubber wheel 587 can not only transfer the weight of the counterweight block 582 to the plastered channel steel 56, but also contact the plastered channel steel 56 smoothly when it swings to reduce friction; the pressure roller support rod guide bearing 585 is connected to the plastered support plate 51 with bolts; the upper end of the weight support rod 584 is hinged to the pressure roller support rod 586; the circular hole in the middle of the weight support rod guide block 583 serves as a guide hole for the weight support rod 584 to float up and down, and the weight support rod guide block 583 is constrained by two inverted "L"-shaped steel plates on the counterweight adjustment frame 581 in its up and down movement stroke, so that it can move left and right in the space formed by the two inverted "L" shapes.

[0051] A linear bearing is installed in the horizontal hole of the optical axis connecting block 551 in the channel steel floating connecting rod assembly 55, and grease is applied in the vertical hole, so that the connecting optical axis 552 can move smoothly up and down in its vertical hole; the channel steel optical axis connecting sleeve 553 is made of a hollow steel pipe, and a straight groove is provided on the pipe wall. It is connected to the connecting optical axis 552 through the straight groove mounting bolts to prevent the connecting optical axis 552 from falling off from the channel steel optical axis connecting sleeve 553. The lower end of the channel steel optical axis connecting sleeve 553 is welded to the plastered channel steel 56.

[0052] A small arm 32 is installed in the big arm 31 on the hollow square steel boom assembly 3, and the small arm 32 can be extended and retracted up and down in the big arm 31. The second drive motor 33, that is, the lifting motor, can lift and lower the big arm 31 when it is working; when the contouring motion device 6 moves on the mold, the small arm 32 connected to the third support frame assembly 4 can freely extend and retract in the big arm 31 along the curvature of the mold surface.

[0053] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic concrete finishing device for tunnel shield segments, characterized in that: It comprises a first support frame assembly, on which a second support frame assembly is movably arranged, on which a boom assembly is movably arranged, on which a third support frame assembly is arranged, and on which an automatic wiping device and a contouring motion device are installed; The first support frame assembly includes two parallel foundations, two door-shaped frames are set between the two foundations, and two side-by-side beams are connected between the two frames; the second support frame assembly is movably set on the two beams; The second support frame assembly includes a boom support frame, the boom support frame is movably sleeved on the outer sides of the two cross beams of the first support frame assembly, and a first drive motor is also arranged on the boom support frame, and the first drive motor is connected to the two cross beams through a first transmission assembly, and can drive the boom support frame to reciprocate along the axial direction of the cross beam; The boom assembly includes a coaxially sleeved boom and a forearm, and the forearm can be extended and retracted relative to the boom; the boom is movably arranged on the second support frame assembly, and the boom assembly also includes a second drive motor placed on the second support frame assembly, and the second drive motor is connected to the boom through a second transmission assembly, and can drive the boom to perform lifting and reciprocating movements relative to the second support frame assembly; The third support frame assembly includes a frame-type mounting frame, the contour motion device is hinged on both sides of the mounting frame, and is connected to the automatic wiping device located inside the mounting frame; The contour-copying motion device comprises a semicircular leg, a sealing plate is arranged on one side of the leg, and a roller group is installed on the two free ends of the leg, and a plurality of rollers in the roller group are arranged in a curved arc shape, and the axis connecting line thereof is an arc shape; the upper part of the sealing plate is hinged to the mounting frame, and further comprises a limiting guide column arranged on the lower side of the sealing plate, and a limiting guide groove arranged at a corresponding position of the mounting frame, the limiting guide groove is in a curved arc shape, and the limiting guide column is slidably arranged in the limiting guide groove; The automatic plastering device includes a plastering support plate, which is horizontally arranged and has two ends connected to the contour-matching motion device respectively; it also includes a third drive motor installed on the plastering support plate, and an optical axis connecting rod suspended below the plastering support plate and capable of axially reciprocating motion relative to the plastering support plate, and a plastering channel steel is suspended below the optical axis connecting rod through a channel steel floating connecting rod assembly; the third drive motor is transmission-connected to the optical axis connecting rod through a third transmission assembly; it also includes a pressure wheel support rod assembly movably passed through the mounting frame and the plastering support plate and pressed on the plastering channel steel; a clearance groove for the plastering channel steel to enter and exit is provided at the bottom of the closing plate corresponding to the position of the plastering channel steel, and guide wheels are provided on the outer side of the closing plate corresponding to the positions on both sides of the clearance groove.

2. The automatic concrete finishing device for tunnel shield segments according to claim 1 is characterized in that: The channel steel floating connecting rod assembly includes an optical axis connecting block and a connecting optical axis. The upper part of the optical axis connecting block is sleeved on the optical axis connecting rod. A telescopic blind hole is provided at the bottom of the optical axis connecting block. One end of the connecting optical axis can be telescopically inserted into the telescopic blind hole, and the other end is connected to the plastered channel steel.

3. The automatic concrete finishing device for tunnel shield segments according to claim 1 is characterized in that: The pressure roller support rod assembly includes a counterweight adjustment frame, a counterweight block, a weight support rod guide block, a weight support rod, a pressure roller support rod guide bearing, a pressure roller support rod and a bearing rubber wheel. The counterweight adjustment frame is fixed on the top of the mounting frame, and the counterweight block is movably clamped in the counterweight adjustment frame to be able to move up and down in the vertical direction; the weight support rod guide block is movably clamped in the counterweight adjustment frame to be able to move laterally in the horizontal direction; the top of the weight support rod passes through the weight support rod guide block and abuts against the bottom of the counterweight block, and the lower part passes through the counterweight adjustment frame and is hinged to the pressure roller support rod; the pressure roller support rod guide bearing is sleeved on the outside of the pressure roller support rod, and the top is connected to the bottom of the plastering support plate, the bearing rubber wheel is installed at the bottom of the pressure roller support rod, and the bearing rubber wheel rolls in contact with the plastering channel steel.

4. The automatic concrete finishing device for tunnel shield segments according to claim 3 is characterized in that: The counterweight adjustment frame includes a U-shaped bottom plate, a waist-shaped hole is opened on the U-shaped bottom plate, and limiting plates are respectively arranged on both sides of the narrow side of the waist-shaped hole. The limiting plate is an L-shaped structure, and a limiting space is formed between the limiting plate and the U-shaped bottom plate. The height of the limiting space is equal to or slightly greater than the thickness of the guide block of the weight support rod.

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