CN113107509B - Concrete spraying device for bridge and tunnel construction and spraying method thereof - Google Patents
Concrete spraying device for bridge and tunnel construction and spraying method thereof Download PDFInfo
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- CN113107509B CN113107509B CN202110503387.2A CN202110503387A CN113107509B CN 113107509 B CN113107509 B CN 113107509B CN 202110503387 A CN202110503387 A CN 202110503387A CN 113107509 B CN113107509 B CN 113107509B
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000005507 spraying Methods 0.000 title claims description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 123
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 241000238421 Arthropoda Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/0873—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines the shield being provided with devices for lining the tunnel, e.g. shuttering
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
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- Geochemistry & Mineralogy (AREA)
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- Architecture (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a concrete injection device for bridge and tunnel construction and an injection method thereof, wherein the concrete injection device comprises a shield mechanism, an injection mechanism and forty-five spine mechanisms, wherein the shield mechanism comprises a direct current motor, an excavating winch, a first sleeve and a second sleeve; an output shaft of the direct current motor is welded with the inner side wall of the digging winch, and the direct current motor is installed on the inner side wall of the first sleeve; all mechanisms of the device are designed in an unmanned automatic mode, through the matching between the shield mechanism and the injection mechanism, under the mechanical linkage and the driving displacement action of the forty-five groups of backbone mechanisms, the self-propelled concrete injection and leveling process of the target preset tunnel is realized, the cyclic driving action of 'pre-leveling, uniform concrete injection without dead angle and concrete leveling' can be completed in the actual use process, and the problems that the manual work of an additional tunnel in the traditional technology is difficult to construct and the process is poor are effectively solved.
Description
Technical Field
The invention relates to the technical field of bridge and tunnel construction devices, in particular to a concrete spraying device for bridge and tunnel construction and a spraying method thereof.
Background
In the excavation process of the bridge and tunnel related water conservancy facilities, due to the influences of actual factors such as soil quality, bearing capacity and water displacement and the fact that the bridge and tunnel related water conservancy facilities need to be matched with the built bridge main tunnel in an interval mode, an auxiliary tunnel is usually required to be independently arranged for containing in reality, the inner diameter is usually narrow in the construction process, the concrete soil layer process and the leveling process of normal tunnel construction are difficult to be implemented in the auxiliary water conservancy tunnel in a manual mode, and the phenomenon of poor process is easily caused.
Therefore, a concrete spraying device for bridge and tunnel construction and a spraying method thereof are provided.
Disclosure of Invention
In view of the above, embodiments of the present invention are to provide a concrete spraying apparatus for bridge and tunnel construction and a spraying method thereof, so as to solve or alleviate the technical problems in the prior art, and provide at least one useful choice;
the technical scheme of the embodiment of the invention is realized as follows: a concrete spraying device for bridge and tunnel construction comprises a shield mechanism, a spraying mechanism and forty-five spine mechanisms, wherein the shield mechanism comprises a direct current motor, an excavating winch, a first sleeve and a second sleeve;
an output shaft of the direct current motor is welded with the inner side wall of the digging winch, and the direct current motor is installed on the inner side wall of the first sleeve;
the injection mechanism is arranged on the inner side wall of the shield mechanism and comprises a rack, four concrete pumps, two flow guide pipes, two support frames and two arc-shaped floating plates;
the outer surface of the concrete pump is arranged on the inner side wall of the frame, the water outlet of the concrete pump is communicated with the inner side wall of the flow guide pipe, the front surface of the support frame is welded on the rear surface of the frame, and the outer surface of the support frame is welded on the inner side wall of the arc-shaped floating plate;
the spine mechanism is mounted on the outer surface of the first sleeve and the second sleeve, the spine mechanism comprises a connecting frame and a universal joint, the outer surface of the universal joint is welded on the inner side wall of the connecting frame, and the universal joint of one spine mechanism is matched with the universal joint of the other spine mechanism.
As a further preferred aspect of the present invention: the outer surface of the digging winch is in sliding connection with the inner side wall of the first sleeve, and the inner side wall of the second sleeve is in sliding connection with the outer surface of the first sleeve.
As further preferable in the present technical solution: the shield mechanism further comprises a connecting sleeve, an asynchronous motor and a worm;
an output shaft of the asynchronous motor is welded with the inner side wall of the worm, the outer surface of the worm is matched with the inner side wall of the connecting sleeve, and the outer surface of the connecting sleeve is welded on the inner side wall of the first sleeve;
the preset tunnel muck leveled and dropped by the digging winch is carried in the connecting sleeve through the worm driven by the asynchronous motor, and is conveyed to the outside through an external conveying pipe.
As a further preferred aspect of the present invention: the injection mechanism further comprises two stepping motors, two first gears, a gear ring and a slide rail;
step motor's output shaft weld in the inside wall of first gear, step motor's surface install in the inside wall of frame, the surface weld of ring gear in the inside wall of frame, the teeth of a cogwheel of ring gear with the teeth of a cogwheel meshing of first gear, the inside wall of slide rail weld in the surface of frame, the telescopic inside wall welding of second has the hinge frame, the inside wall of hinge frame evenly rotates through the round pin axle and is connected with the pulley, the surface of pulley with the surface sliding connection of hinge frame, the surface of pulley with the surface sliding connection of slide rail.
In the injection mechanism, two groups of stepping motors rotate annularly inside the tunnel through a rack and a gear ring driven by a first gear, and a concrete pump uniformly sprays and screeds concrete on the inner wall of the tunnel through a guide pipe in the period.
As further preferable in the present technical solution: the spine mechanism further comprises a servo motor, a second gear, two third gears, two first hydraulic cylinders, a hinge shaft, two second hydraulic cylinders, two third hydraulic cylinders and a sliding block;
the outer surface of the servo motor is mounted on the inner side wall of the connecting frame, the inner side wall of the second gear is welded with an output shaft of the servo motor, gear teeth of the third gear are meshed with gear teeth of the second gear, a gear shaft of the third gear is fixedly connected with an earring ferrule of the first hydraulic cylinder, the outer surface of the hinge shaft is fixedly connected with a piston rod of the first hydraulic cylinder, an earring ferrule of the second hydraulic cylinder is fixedly connected with the outer surface of the hinge shaft, the outer surface of the third hydraulic cylinder is hinged with the lower surface of the connecting frame through a bearing, the outer surface of the sliding block is welded on the inner side wall of the connecting frame, a convex ring is welded on the outer surface of the digging hinge disc, and the front surface of the sliding block is attached to the convex ring of the digging hinge disc;
the integral device is driven to advance by forty-five groups of backbone mechanisms, connecting frames in the multiple groups of backbone mechanisms are in butt joint with universal joints of other backbone mechanisms through universal joints, the two groups of backbone mechanisms are driven to be pulled through the connection relation of piston rods of two groups of second hydraulic cylinders and two groups of third hydraulic cylinders, and respectively drive a first sleeve and a second sleeve to slide and advance the digging winch, and then the foremost backbone mechanism utilizes the reverse thrust between the three groups of hydraulic cylinders to drive a sliding block of the connecting frame to push a convex ring of the digging winch to reset and advance.
As further preferable in the present technical solution: the piston rods of the second hydraulic cylinder and the third hydraulic cylinder of one spine mechanism are hinged with the connecting frame of the other spine mechanism.
In addition, the invention also provides a spraying method of the concrete spraying device for bridge and tunnel construction, which comprises the following steps:
s1, driving an excavating winch to perform a preset leveling process on the target tunnel by a direct current motor of the shield mechanism, and providing construction conditions for a rear-mounted injection mechanism;
s2, in the injection mechanism, the frame and the gear ring driven by the stepping motor and the first gear rotate the inside of the tunnel annularly, and the concrete pump sprays and scrubs the concrete on the inner wall of the tunnel through the flow guide pipe in the period;
s3, the integral device is driven to advance by forty-five groups of backbone mechanisms, connecting frames in the multiple groups of backbone mechanisms are in butt joint with universal joints of the other backbone mechanisms through universal joints, the two groups of backbone mechanisms are driven to be pulled through the connection relation of piston rods of two groups of second hydraulic cylinders and two groups of third hydraulic cylinders, and respectively drive a first sleeve and a second sleeve to carry out sliding propulsion on the digging winch, and then the most front backbone mechanism drives a sliding block of the connecting frame to push a convex ring of the digging winch to reset and advance by utilizing reverse thrust between the three groups of hydraulic cylinders;
s4, after the excavating winch advances, the backbone mechanism drives the second sleeve to slide and advance on the outer part of the first sleeve by the same driving principle in S3;
s5, after all mechanisms finish one-time forward running through S3 and S4, the support frame and the arc-shaped trowelling plate in the spraying mechanism move to the previous concrete spraying position, and the concrete layer is compacted and trowelled by extrusion force;
and S6, circularly reciprocating all the steps from S3 to S4, and finishing the concrete spraying construction on the inner wall of the section of the tunnel.
As further preferable in the present technical solution: in S3, two sets of first hydraulic cylinders are used for stroke adjustment, the horizontal angle of the second hydraulic cylinder is adjusted, the whole shield mechanism is controlled to be adjusted in a limited angle, and the adaptive angle is improved and the shield mechanism advances in the actual use process aiming at the curvature tunnel.
Compared with the prior art, the invention has the beneficial effects that:
all mechanisms of the device are designed in an unmanned automatic mode, self-propelled concrete spraying and leveling processes of a target preset tunnel are achieved through cooperation between a shield mechanism and a spraying mechanism and under the mechanical linkage and driving displacement effects of forty-five groups of backbone mechanisms, cyclic driving actions of pre-leveling, uniform concrete spraying without dead corners and concrete leveling can be completed in the actual using process, and the problems that manual construction of additional tunnels is difficult and the processes are poor in the traditional technology are effectively solved;
secondly, adopt the backbone mechanism of arthropod bionics design can carry out corresponding adaptation angle modulation to having the preset tunnel of oblique angle or camber, and then drive injection mechanism and shield structure mechanism and carry out adaptation ground angle modulation equally, effectively deal with the different actual environment condition in the actual work progress, effectively help the staff to accomplish tunnel construction.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the digging winch of the present invention;
FIG. 3 is a schematic three-dimensional structure of the shield mechanism and the injection mechanism of the present invention;
FIG. 4 is a schematic perspective view of the area A of FIG. 3 according to the present invention;
FIG. 5 is a schematic structural view of a housing of the injection mechanism of the present invention;
FIG. 6 is a perspective view of the spinal mechanism of the present invention;
fig. 7 is a perspective view of another aspect of the spinal mechanism of the present invention.
Reference numerals: 1. a shield mechanism; 101. a direct current motor; 102. digging a soil winch; 1021. a convex ring; 103. a first sleeve; 104. a second sleeve; 105. a connecting sleeve; 1051. an asynchronous motor; 1052. a worm; 106. hinging frame; 1061. a pulley; 2. an injection mechanism; 201. a stepping motor; 202. a first gear; 203. a frame; 2031. a ring gear; 2032. a slide rail; 204. a concrete pump; 205. a flow guide pipe; 206. a support frame; 207. arc-shaped plastering plates; 3. a spinal mechanism; 301. a connecting frame; 302. a servo motor; 303. a second gear; 304. a third gear; 305. a first hydraulic cylinder; 306. a hinge shaft; 307. a second hydraulic cylinder; 308. a third hydraulic cylinder; 309. a universal joint; 310. a slide block.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Examples
Referring to fig. 1-7, the present invention provides a technical solution: a concrete injection device for bridge and tunnel construction comprises a shield mechanism 1, an injection mechanism 2 and forty-five spine mechanisms 3, wherein the shield mechanism 1 comprises a direct current motor 101, an excavating winch 102, a first sleeve 103 and a second sleeve 104;
an output shaft of the direct current motor 101 is welded with the inner side wall of the digging winch 102, and the direct current motor 101 is installed on the inner side wall of the first sleeve 103;
the injection mechanism 2 is arranged on the inner side wall of the shield mechanism 1, and the injection mechanism 2 comprises a frame 203, four concrete pumps 204, two guide pipes 205, two support frames 206 and two arc-shaped wiping plates 207;
the outer surface of the concrete pump 204 is arranged on the inner side wall of the frame 203, the water outlet of the concrete pump 204 is communicated with the inner side wall of the guide pipe 205, the front surface of the support frame 206 is welded on the rear surface of the frame 203, and the outer surface of the support frame 206 is welded on the inner side wall of the arc-shaped floating plate 207;
the spine mechanism 3 is arranged on the outer surface of the first sleeve 103 and the second sleeve 104, the spine mechanism 3 comprises a connecting frame 301 and a universal joint 309, the outer surface of the universal joint 309 is welded on the inner side wall of the connecting frame 301, and the universal joint 309 of one spine mechanism 3 is matched with the universal joint 309 of the other spine mechanism 3.
In this embodiment, specifically: the outer surface of the digging winch 102 is in sliding connection with the inner side wall of the first sleeve 103, and the inner side wall of the second sleeve 104 is in sliding connection with the outer surface of the first sleeve 103; the inner diameter of the second sleeve 104 is larger than the outer diameter of the first sleeve 103, and the coaxiality is not equal to 0, and the inner diameter of the first sleeve 103 is larger than the outer diameter of the excavating winch 102, and the coaxiality is not equal to 0.
In this embodiment, specifically: the shield mechanism 1 further comprises a connecting sleeve 105, an asynchronous motor 1051 and a worm 1052;
an output shaft of the asynchronous motor 1051 is welded with the inner side wall of the worm 1052, the outer surface of the worm 1052 is matched with the inner side wall of the connecting sleeve 105, and the outer surface of the connecting sleeve 105 is welded with the inner side wall of the first sleeve 103;
the predetermined tunnel spoil leveled off by the digging winch 102 is carried inside the coupling sleeve 105 by the worm 1052 driven by the asynchronous motor 1051 and is conveyed outside to the outside by an outside conveying pipe.
In this embodiment, specifically: the injection mechanism 2 further includes two stepping motors 201, two first gears 202, a ring gear 2031, and a slide rail 2032;
the output shaft of step motor 201 welds in the inside wall of first gear 202, the surface mounting of step motor 201 is in the inside wall of frame 203, the surface welding of ring gear 2031 is in the inside wall of frame 203, the teeth of a cogwheel of ring gear 2031 and the teeth of a cogwheel meshing of first gear 202, the inside wall welding of slide rail 2032 is in the surface of frame 203, the inside wall welding of second sleeve 104 has hinge frame 106, the inside wall of hinge frame 106 is connected with pulley 1061 through the even rotation of round pin axle, the surface sliding connection of pulley 1061 and hinge frame 106, the surface sliding connection of pulley 1061 and the surface of slide rail 2032.
In the injection mechanism 2, two sets of stepping motors 201 circularly rotate the inside of the tunnel through the frame 203 and the ring gear 2031 driven by the first gear 202, during which the concrete pump 204 uniformly sprays and scrubs the concrete on the inner wall of the tunnel through the flow guide pipe 205, and during the rotation, the slide rail 2032 of the frame 203 and the pulley 1061 are mutually matched to realize limited support.
In this embodiment, specifically: the spine mechanism 3 further includes a servo motor 302, a second gear 303, two third gears 304, two first hydraulic cylinders 305, a hinge shaft 306, two second hydraulic cylinders 307, two third hydraulic cylinders 308, and a slider 310;
the outer surface of the servo motor 302 is arranged on the inner side wall of the connecting frame 301, the inner side wall of the second gear 303 is welded with an output shaft of the servo motor 302, gear teeth of the third gear 304 are meshed with gear teeth of the second gear 303, a gear shaft of the third gear 304 is fixedly connected with an earring ferrule of the first hydraulic cylinder 305, the outer surface of the hinge shaft 306 is fixedly connected with a piston rod of the first hydraulic cylinder 305, an earring ferrule of the second hydraulic cylinder 307 is fixedly connected with the outer surface of the hinge shaft 306, the outer surface of the third hydraulic cylinder 308 is hinged with the lower surface of the connecting frame 301 through a bearing, the outer surface of the sliding block 310 is welded on the inner side wall of the connecting frame 301, a convex ring 1021 is welded on the outer surface of the digging hinge plate 102, and the front surface of the sliding block 310 is attached to the convex ring 1021 of the digging hinge plate 102;
the integral device is driven by forty-five groups of backbone mechanisms 3 to advance, connecting frames 301 in the multiple groups of backbone mechanisms 3 are butted with universal joints 309 of the other backbone mechanisms 3 through universal joints 309, the two groups of backbone mechanisms 3 are pulled and driven through the connection relationship of piston rods of two groups of second hydraulic cylinders 307 and two groups of third hydraulic cylinders 308, and respectively drive a first sleeve 103 and a second sleeve 104 to slide and propel the excavating winch 102, and then the foremost backbone mechanism 3 drives a slide block 310 of the connecting frame 301 to push a convex ring 1021 of the excavating winch 102 to reset and advance by utilizing reverse thrust between the three groups of hydraulic cylinders.
In this embodiment, specifically: the piston rods of the second 307 and third 308 hydraulic cylinders of one spine mechanism 3 are each articulated to the attachment frame 301 of the other spine mechanism 3.
In addition, the invention also provides a spraying method of the concrete spraying device for bridge and tunnel construction, which comprises the following steps:
s1, driving the digging winch 102 to carry out a preset leveling process on the target tunnel by the direct current motor 101 of the shield mechanism 1, and providing construction conditions for the rear injection mechanism 2;
s2, in the injection mechanism 2, the frame 203 and the ring gear 2031 driven by the stepping motor 201 and the first gear 202 rotate annularly inside the tunnel, during which the concrete pump 204 sprays and screeds the concrete uniformly on the inner wall of the tunnel through the flow guide pipe 205;
s3, the integral device is driven to advance by forty-five groups of backbone mechanisms 3, connecting frames 301 in the multiple groups of backbone mechanisms 3 are butted with universal joints 309 of the other backbone mechanisms 3 through universal joints 309, the two groups of backbone mechanisms 3 are pulled and driven through the connection relationship of piston rods of two groups of second hydraulic cylinders 307 and two groups of third hydraulic cylinders 308, and respectively drive a first sleeve 103 and a second sleeve 104 to carry out sliding propulsion on the excavating winch 102, and then the foremost backbone mechanism 3 drives a sliding block 310 of the connecting frame 301 to push a convex ring 1021 of the excavating winch 102 to reset and advance by utilizing reverse thrust between the three groups of hydraulic cylinders;
after the earth-moving winch 102 advances S4, the backbone mechanism 3 drives the second sleeve 104 to slide and advance outside the first sleeve 103 by the same driving principle in S3;
s5, after all mechanisms complete one-time forward driving through S3 and S4, the support frame 206 and the arc-shaped troweling plate 207 in the spraying mechanism 2 move to the previous concrete spraying position, and the concrete layer is compacted and trowelled by using extrusion force;
and S6, circularly reciprocating all the steps from S1 to S5, and finishing the concrete spraying construction on the inner wall of the section of the tunnel.
In this embodiment, specifically: in S3, the two sets of first hydraulic cylinders 305 perform stroke adjustment, adjust the horizontal angle of the second hydraulic cylinder 307, control the whole shield mechanism 1 to perform limited angle adjustment, and perform adaptation angle improvement and traveling for the curvature tunnel in the actual use process.
In this embodiment, specifically: the controller and the storage battery are arranged outside the tunnel and used for providing power sources and control instructions for all electrical elements of the device.
Working principle or structural principle: all mechanisms of the device are designed in an unmanned automatic mode, through the matching between the shield mechanism 1 and the injection mechanism 2, under the mechanical linkage and the driving displacement action of the forty-five spinal mechanisms 3, the self-propelled concrete injection and leveling process for the target preset tunnel is realized, the cyclic driving action of pre-leveling, uniform concrete injection without dead angle and concrete leveling can be completed in the actual use process, and the problems that the manual work of an additional tunnel in the traditional technology is difficult to construct and the process is poor are effectively solved.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The utility model provides a bridge is concrete injection apparatus for tunnel construction, constructs mechanism (1), injection mechanism (2) and forty-five backbone mechanisms (3) including the shield, its characterized in that: the shield mechanism (1) comprises a direct current motor (101), an excavating winch (102), a first sleeve (103) and a second sleeve (104);
an output shaft of the direct current motor (101) is welded with the inner side wall of the digging winch (102), and the direct current motor (101) is installed on the inner side wall of the first sleeve (103);
the injection mechanism (2) is arranged on the inner side wall of the shield mechanism (1), and the injection mechanism (2) comprises a frame (203), four concrete pumps (204), two flow guide pipes (205), two support frames (206) and two arc-shaped floating plates (207);
the outer surface of the concrete pump (204) is mounted on the inner side wall of the frame (203), the water outlet of the concrete pump (204) is communicated with the inner side wall of the flow guide pipe (205), the front surface of the support frame (206) is welded on the rear surface of the frame (203), and the outer surface of the support frame (206) is welded on the inner side wall of the arc-shaped floating plate (207);
the spine mechanism (3) is mounted on the outer surfaces of the first sleeve (103) and the second sleeve (104), the spine mechanism (3) comprises a connecting frame (301) and a universal joint (309), the outer surface of the universal joint (309) is welded on the inner side wall of the connecting frame (301), the universal joint (309) of one spine mechanism (3) is matched with the universal joint (309) of the other spine mechanism (3), and the injection mechanism (2) further comprises two stepping motors (201), two first gears (202), a gear ring (2031) and a sliding rail (2032);
an output shaft of the stepping motor (201) is welded to an inner side wall of the first gear (202), an outer surface of the stepping motor (201) is installed on the inner side wall of the rack (203), an outer surface of the gear ring (2031) is welded to the inner side wall of the rack (203), gear teeth of the gear ring (2031) are meshed with gear teeth of the first gear (202), an inner side wall of the sliding rail (2032) is welded to the outer surface of the rack (203), a hinge frame (106) is welded to an inner side wall of the second sleeve (104), a pulley (1061) is uniformly and rotatably connected to the inner side wall of the hinge frame (106) through a pin shaft, an outer surface of the pulley (1061) is slidably connected to the outer surface of the hinge frame (106), an outer surface of the pulley (1061) is slidably connected to the outer surface of the sliding rail (2032), and the spine mechanism (3) further comprises a servo motor (302), A second gear (303), two third gears (304), two first hydraulic cylinders (305), a hinge shaft (306), two second hydraulic cylinders (307), two third hydraulic cylinders (308) and a slide block (310);
the outer surface of the servo motor (302) is arranged on the inner side wall of the connecting frame (301), the inner side wall of the second gear (303) is welded with the output shaft of the servo motor (302), the gear teeth of the third gear (304) are meshed with the gear teeth of the second gear (303), the gear shaft of the third gear (304) is fixedly connected with the earring ferrule of the first hydraulic cylinder (305), the outer surface of the hinge shaft (306) is fixedly connected with the piston rod of the first hydraulic cylinder (305), the earring ferrule of the second hydraulic cylinder (307) is fixedly connected with the outer surface of the hinge shaft (306), the outer surface of the third hydraulic cylinder (308) is hinged with the lower surface of the connecting frame (301) through a bearing, the outer surface of the sliding block (310) is welded on the inner side wall of the connecting frame (301), and the outer surface of the excavating winch (102) is welded with a convex ring (1021), the front surface of the slider (310) abuts against a collar (1021) of the excavating winch (102).
2. The concrete injection apparatus for bridge and tunnel construction according to claim 1, wherein: the outer surface of the digging winch (102) is in sliding connection with the inner side wall of the first sleeve (103), and the inner side wall of the second sleeve (104) is in sliding connection with the outer surface of the first sleeve (103).
3. The concrete spraying device for bridge and tunnel construction according to claim 1, wherein: the shield mechanism (1) further comprises a connecting sleeve (105), an asynchronous motor (1051) and a worm (1052);
an output shaft of the asynchronous motor (1051) is welded with an inner side wall of the worm (1052), an outer surface of the worm (1052) is matched with the inner side wall of the connecting sleeve (105), and the outer surface of the connecting sleeve (105) is welded with the inner side wall of the first sleeve (103).
4. The concrete injection apparatus for bridge and tunnel construction according to claim 1, wherein: the piston rods of the second hydraulic cylinder (307) and the third hydraulic cylinder (308) of one spine mechanism (3) are hinged with the connecting frame (301) of the other spine mechanism (3).
5. A spraying method of the concrete spraying apparatus for bridge and tunnel construction according to any one of claims 1 to 4, comprising the steps of:
s1, driving an excavating winch (102) to carry out a preset leveling process on the target tunnel by a direct current motor (101) of the shield mechanism (1) to provide construction conditions for a rear injection mechanism (2);
s2, in the injection mechanism (2), the frame (203) and the gear ring (2031) driven by the stepping motor (201) and the first gear (202) rotate the inner part of the tunnel circularly, and the concrete pump (204) sprays and scrubs the concrete uniformly on the inner wall of the tunnel through the flow guide pipe (205) in the period;
s3, the integral device is driven to advance by forty-five groups of spine mechanisms (3), connecting frames (301) in the plurality of groups of spine mechanisms (3) are butted with universal joints (309) of the other spine mechanisms (3) through universal joints (309), the two groups of spine mechanisms (3) are pulled and driven through the connection relationship of piston rods of two groups of second hydraulic cylinders (307) and two groups of third hydraulic cylinders (308), and respectively drive a first sleeve (103) and a second sleeve (104) to slide and propel an excavating hinge disc (102), and then the foremost spine mechanism (3) drives a sliding block (310) of the connecting frame (301) to push a convex ring (1021) of the excavating hinge disc (102) to reset and advance by utilizing reverse thrust between the three groups of hydraulic cylinders;
s4, after the excavating winch (102) advances, the spine mechanism (3) drives the second sleeve (104) to slide and advance outside the first sleeve (103) through the same driving principle of S3;
s5, after all mechanisms complete one-time forward driving through S3 and S4, the support frame (206) and the arc-shaped troweling plate (207) in the spraying mechanism (2) move to the previous concrete spraying position, and the concrete layer is compacted and trowelled by utilizing extrusion force;
and S6, circularly reciprocating all the steps from S1 to S5, and finishing the concrete spraying construction on the inner wall of the section of the tunnel.
6. The spraying method of the concrete spraying apparatus for bridge and tunnel construction according to claim 5, wherein: in S3, the two sets of first hydraulic cylinders (305) perform stroke adjustment, the horizontal angle of the second hydraulic cylinder (307) is adjusted, and the shield mechanism (1) is controlled to perform limited angle adjustment as a whole.
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| JP4793655B2 (en) * | 2007-05-07 | 2011-10-12 | 清水建設株式会社 | Tunnel construction method |
| CN108412509A (en) * | 2018-03-30 | 2018-08-17 | 重庆大学 | The anti-card machine method of double-shielded TBM |
| CN108756907B (en) * | 2018-08-09 | 2024-01-30 | 北京崇建工程有限公司 | Tunnel top shield guniting equipment |
| CN209704567U (en) * | 2019-04-09 | 2019-11-29 | 范安安 | Synchronous shield machine is drive in a kind of pair of filling boldly |
| CN111577307B (en) * | 2020-06-02 | 2021-07-20 | 盾构及掘进技术国家重点实验室 | Shield machine and tunneling method thereof |
| CN212563242U (en) * | 2020-06-11 | 2021-02-19 | 吴成 | Peristaltic shield machine advancing device |
| CN111997661B (en) * | 2020-09-07 | 2022-04-19 | 中铁工程装备集团有限公司 | Pipe piece supporting device and working method thereof |
| CN112275502A (en) * | 2020-10-26 | 2021-01-29 | 巨野七彩贝壳电子商务有限公司 | Tunnel spraying device and shield equipment |
| CN112761654B (en) * | 2021-01-18 | 2022-11-22 | 中国铁建重工集团股份有限公司 | Soil pressure TBM dual-mode dual-support heading machine and construction method |
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