CN116427959A - A new type of adjustable plug-in vibrating device for the second lining of the tunnel - Google Patents

Abstract

The invention discloses a novel adjustable inserted vibration device for a tunnel secondary lining, which comprises the following components: a bottom plate; the guide rail is arranged on the bottom plate, and the lengths of the guide rail are distributed along the tunneling direction; the bottom of the sliding steel frame is in sliding connection with the guide rail, and the sliding steel frame is driven to slide by the sliding driving mechanism; the lower end of the lifting device is arranged on the sliding steel frame; the telescopic mechanism is arranged at the upper end of the lifting device, the lengths of the telescopic mechanism are distributed along the tunneling direction, and the telescopic mechanism is driven to stretch by the telescopic driving mechanism; the vibrator is arranged at the front end of the telescopic mechanism and is used for vibrating concrete; and a working window which is arranged at the end mould of the trolley and is provided with a window which corresponds to the front end of the telescopic mechanism and can be opened and closed. By adopting the vibrating device, the vibrator can be inserted into any position of the same horizontal concrete layer in the concrete template to vibrate, dead corners are avoided, and the vibrating range and the vibrating quality are improved.

Description

A new type of adjustable plug-in vibrating device for the second lining of the tunnel

technical field

The invention relates to the field of underground engineering, in particular to a novel adjustable plug-in vibrating device for the second lining of a tunnel.

Background technique

As my country's infrastructure continues to strengthen and tunnel construction continues to grow, the country's requirements for tunnel construction are also increasing, and the quality requirements for tunnel concrete lining are also getting higher and higher. Among them, the construction quality of the second lining concrete is the key factor affecting the overall quality of the tunnel, and it is also a direct reflection of the tunnel quality. During the tunnel construction process, the vibrating process is a necessary process to prevent the appearance of honeycomb pockmarks on the appearance of the concrete and the lack of compactness inside.

The part below the arch line of the tunnel is the anti-arch section. Since the air bubbles are discharged upward during concrete pouring, most of the air bubbles below the arch line accumulate on the inner arc surface of the second lining and are difficult to discharge, resulting in the existence of concrete below the arch line of the second lining. Lots of honeycomb pockmarks.

At present, the method of vibrating the secondary lining concrete is basically carried out by inserting vibrating rods combined with ordinary attached vibrators. Even most of the arch walls below the tunnel arching line rely on workers to use vibrating rods for manual insertion vibration. However, relying entirely on the traditional plug-in vibrating rod has the following disadvantages: the distance between the working windows of the trolley is relatively large, and the working window is small, and the circular steel bar blocks the window, so the operable space of the vibrating rod is narrow, and the working window between the windows is small. The parts between the tunnels are prone to vibration leakage; and because the stirrups and vertical bars cross the second lining of the tunnel, the vibrating rods are easy to contact the steel bars; and the vibrating rods are completely operated by workers, and the operation requires the cooperation of multiple workers. The labor intensity is high, the subjectivity is strong, and it is difficult to guarantee the construction quality. Due to the defects of the vibrating method and the fact that the air bubbles in the anti-arc section are not easy to discharge, most of the tunnels have serious appearance defects such as honeycomb pockmarks in the arch walls below the anti-arc section after the construction is completed.

Therefore, it is of great significance to design a vibrating device for vibrating the secondary lining of the anti-arch section of the tunnel, which has a large vibrating coverage, is easy to operate, can reduce the labor intensity of workers, and improves the appearance quality of the secondary lining of the tunnel.

Contents of the invention

The purpose of the present invention is to provide a new type of adjustable plug-in vibrating device for the second lining of the tunnel, so as to overcome the shortcomings of the existing plug-in vibrating method, such as high labor intensity, narrow insertion range, many blind areas, and easy to cause regional vibration leakage. .

In order to achieve the above object, the present invention provides a new type of adjustable plug-in vibrating device for the second lining of the tunnel, which includes: a bottom plate; frame, the bottom of which is slidingly connected with the guide rail, and the sliding steel frame is driven to slide by the sliding drive mechanism; the lifting device, the lower end of which is installed on the sliding steel frame, is used for lifting; the telescopic mechanism, which is installed on the The upper end of the lifting device, the length of the telescopic mechanism is distributed along the direction of tunnel excavation, and the telescopic mechanism is driven by the telescopic drive mechanism to expand and contract; the vibrator is installed on the front end of the telescopic mechanism for concrete. vibrating; and a working window, which is installed at the end mold of the trolley, and the working window is provided with a window corresponding to the front end of the telescopic mechanism and capable of opening and closing.

Preferably, in the above technical solution, the sliding drive mechanism includes a hydraulic propeller, the hydraulic propeller is installed on the bottom plate and located at the rear side of the sliding steel frame, the push rod of the hydraulic propeller is connected to the The sliding steel frame connection described above.

Preferably, in the above technical solution, the lifting device includes a rope row type telescopic arm mechanism, and the rope row type telescopic arm mechanism includes a plurality of telescopic arms and electric push rods, and a plurality of the telescopic arms are movably socketed with each other and adopt Rope row structure connection, the electric push rod is located in the telescopic arm, the electric push rod is connected to the motor, and the upper end of the electric push rod is provided with a pull rope connected with the rope row structure. Traction pulley.

Preferably, in the above technical solution, the telescoping mechanism includes: a plurality of sleeves, which are movably socketed from the inside to the outside; wherein, the inner sleeve is an inner sleeve, and the outer sleeve is The casing is the outer casing, and the other casings are telescopic casings, and the telescopic casing is movably sleeved between the outer casing and the inner casing; the vibrator is arranged on the The front end of the inner casing; the miniature pulley, the right side of the rear end of the outer casing and the right side of the rear end of each telescopic casing are provided with two miniature pulleys oppositely arranged front and back, and the front end of the outer casing The left side and the front and rear ends of each telescopic sleeve on the left side are provided with a miniature pulley; the rear end of the inner sleeve is provided with two miniature pulleys that are relatively distributed left and right; the sealing ring , the inside of the front end of the outer sleeve and the inside of the front end of each of the telescopic sleeves are provided with an end sealing ring, and the outer rear end of the inner sleeve is provided with an end sealing ring; all of the ends The length of the sealing ring along the telescopic direction decreases sequentially from the inside to the outside; and a traction line, which is wound between all the miniature pulleys, and the rear end of the traction line extends out of the rear end of the sleeve Outside, it is used to drive the expansion and contraction of the telescopic sleeve and the inner sleeve.

Preferably, in the above technical solution, a positioning pulley is provided between two adjacent sleeves.

Preferably, in the above technical solution, the telescoping mechanism includes: a rotating pile, which is rotatably mounted on the rear end of the outer casing, and the rear end of the pulling wire is wound multiple times around the rotating pile and a telescopic motor, the rotating shaft of the telescopic motor is connected with the rotating shaft of the rotating pile through a coupling.

Preferably, in the above technical solution, the working window includes: a window, which is installed at the end mold of the trolley, and the window correspondingly connected with the front end of the telescopic mechanism is opened on the window; , the window is provided with at least four spacer pieces that can be rotated and opened to the inside of the trolley end mold, the outer end of each of the spacer pieces is connected to the window in rotation, each of the spacer pieces The inner end of the inner end is in an arc shape corresponding to the telescopic mechanism; and the lower end of the closure cover is hinged to the lower end of the window in a manner capable of turning up and down, and is used for opening and closing the window.

Preferably, in the above technical solution, two of the barrier sheets are the first barrier sheets, and the other two barrier sheets are the second barrier sheets; the two first barrier sheets are located between the two The front side of the second partition, and the two first partitions are surrounded by a hemispherical shell shape protruding forward, and each of the second partitions is a fan with a small inside and a large outside. Shape; wherein, the two second partitions are distributed along a diagonal line that slopes downward from left to right, and the two first partitions are distributed along a diagonal line that slopes upward from left to right.

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

1. The vibrating device of the present invention is used for the plug-in vibrating device below the anti-arc section of the tunnel and is mechanically controlled. It is easy to operate, reduces the labor intensity of workers and the subjectivity of operation; and the working window of the vibrating device is different from that of traditional vibrating devices. Tamping device, the working window is located at the end formwork of the trolley in the tunnel, which is not restricted by the original working window and operating space, which can reduce the number of working windows, and the vibrator can be inserted into any position of the same horizontal concrete layer in the concrete formwork through the telescopic mechanism. Vibration, improve the vibrating range and no blind area, can avoid leakage vibration, effectively improve the quality of vibration, increase the compactness of concrete, reduce the honeycomb pitting and air bubbles below the anti-arc section, so that the lining concrete can achieve the effect of inner solid and outer beauty;

2. The vibrating device of the present invention can form an additional lateral support effect on the end mold of the trolley when vibrating, so as to offset the adverse effects of the vibration of the vibrating operation on the end mold of the trolley and prevent the trolley from The end mold is loose.

Description of drawings

Fig. 1 is a structural schematic diagram of a novel adjustable plug-in vibrating device for the second lining of a tunnel according to the present invention.

Fig. 2 is a structural schematic diagram of the connection between the telescoping mechanism and the telescopic driving mechanism according to the present invention.

FIG. 3 is a schematic top view of FIG. 2 according to the present invention.

Fig. 4 is a schematic cross-sectional view along line A-A of Fig. 3 according to the present invention.

Fig. 5 is a structural schematic diagram of the telescoping mechanism in a contracted state according to the present invention.

Fig. 6 is a structural schematic diagram of the telescoping mechanism in an extended state according to the present invention.

Fig. 7 is a schematic structural view of the lifting device according to the present invention.

Fig. 8 is a schematic right side view of Fig. 7 according to the present invention.

Fig. 9 is a schematic diagram of the installation structure of the working window and the trolley end form according to the present invention.

Fig. 10 is a schematic diagram of the structure of the working window according to the present invention.

Fig. 11 is a schematic cross-sectional view along line 1-1 of Fig. 10 according to the present invention.

Fig. 12 is a schematic cross-sectional view along line 2-2 of Fig. 10 according to the present invention.

Fig. 13 is a structural schematic diagram of the connection between the telescoping mechanism and the working window according to the present invention.

Explanation of main reference signs:

1-telescopic mechanism, 2-miniature pulley, 201-second miniature pulley, 202 first miniature pulley, 203-third miniature pulley, 3-fixed frame, 4-lifting device, 401-connecting bolt hole, 402-traction pulley , 403-telescopic arm, 404-electric push rod, 405-motor, 5-telescopic drive mechanism, 501-rotary pile, 502-telescopic motor, 503-coupling, 504-centralized control switch, 6-rail, 7- Bottom plate, 8-sliding steel frame, 9-sliding drive mechanism, 10-end sealing ring, 11-outer sleeve, 12-telescopic sleeve, 13-vibrator, 14-end sealing ring, 15-positioning pulley, 16-Travel line, 17-Trolley end mold, 18-Inner casing, 19-Working window, 191-Second bolt hole, 192-First bolt hole, 193-Connecting bolt, 194-Second spacer, 195-the first spacer, 196-rotating parts, 197-rotating shaft, 198-closing cover.

Detailed ways

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

Figures 1 to 13 show a schematic structural view of a new type of adjustable plug-in vibrating device for the second lining of the tunnel according to a preferred embodiment of the present invention. The vibrating device includes a bottom plate 7, a guide rail 6, a sliding steel frame 8, and a lifting device 4 , telescopic mechanism 1, vibrator 13 and working window 19.

Referring to Fig. 1, Fig. 9 and Fig. 13, the guide rail 6 is arranged on the bottom plate 7, and the length of the guide rail 6 is distributed along the tunnel driving direction. Wherein, the excavation direction of the tunnel is taken as the front-back direction. The bottom of the sliding steel frame 8 is slidingly connected with the guide rail 6, and the sliding steel frame 8 is driven to slide by the sliding driving mechanism 9, thereby adjusting the position of the vibrating device. The lower end of lifting device 4 is installed on the sliding steel frame 8, is used for lifting, adjusts the height of vibrating device. The telescopic mechanism 1 is installed on the upper end of the lifting device 4, and the length of the telescopic mechanism 1 is distributed along the tunnel excavation direction, with the tunnel excavation direction being the front and rear direction. The telescopic mechanism 1 is driven to expand and contract by the telescopic driving mechanism 5 , thereby adjusting the length of the telescopic mechanism 1 along the front-rear direction. The vibrator 13 is installed on the front end of the telescopic mechanism 1 for vibrating the concrete. The working window 19 is installed at the trolley end mold 17, and the working window 19 is provided with a window corresponding to the front end of the telescopic mechanism 1 and capable of opening and closing, through which the concrete is vibrated. Setting the working window 19 at the end formwork 17 of the trolley can not only facilitate the vibrator 13 to vibrate any position of the same horizontal concrete layer, but also form an additional lateral support for the end formwork 17 of the trolley to offset the vibration. The bad influence that the vibrating action of pounding operation brings to trolley end formwork 17, prevents trolley end formwork 17 from loosening. When in use, adjust the height of the telescopic mechanism 1 through the lifting device 4, so that the front end of the telescopic mechanism 1 is at the same height as the working window 19; The front end of the mechanism 1 is docked with the working window 19; the telescopic mechanism 1 is driven to expand and contract by the telescopic drive mechanism 5, so as to adjust the insertion depth of the vibrator 13, the operation is simple, and the labor intensity of workers and the subjectivity of operation are reduced; Vibrate at any position of the concrete layer, increase the range of vibration without blind spots, avoid vibration leakage, effectively improve the quality of vibration, increase the density of concrete, reduce honeycomb pockmarks and air bubbles below the anti-arc section, and make the lining concrete reach the inner Really beautiful effect.

Referring to FIG. 1 , the slide driving mechanism 9 may be a motor-driven screw nut structure, or may be a structure such as a hydraulic propeller. Preferably, the sliding drive mechanism 9 includes a hydraulic propeller, the hydraulic propeller is installed on the base plate 7 and is located on the rear side of the sliding steel frame 8, the push rod of the hydraulic propeller is connected with the sliding steel frame 8, and the hydraulic propeller drives the sliding steel frame 8. Frame 8 slides back and forth along guide rail 6

Referring to Fig. 1, Fig. 7 and Fig. 8, the lifting device 4 can be a hydraulic cylinder, or can be a structure such as a rope row type telescopic arm mechanism. Preferably, the lifting device 4 includes a rope-row telescopic arm mechanism, which includes a plurality of telescopic arms 403 and electric push rods 404, and the plurality of telescopic arms 403 are movably socketed with each other and connected by a rope-row structure. The electric push rod 404 is located in the telescopic arm 403, and the electric push rod 404 is connected with the motor 405, and the electric push rod 404 is driven to expand and contract by the motor 405. The upper end of the electric push rod 404 is provided with a traction pulley 402 connected with the traction rope of the rope row structure. Wherein, the upper end of the innermost telescopic arm 403 is connected with the telescopic mechanism 1 through the fixed frame 3, and the upper end of the fixed frame 3 and the telescopic arm 403 are connected with bolt holes 401 and bolts, and the lower end of the outermost telescopic arm 403 is connected with the Sliding steel frame 8 is fixedly connected. When working, by driving the electric push rod 404 to expand and contract, the traction rope is driven to move, thereby driving a plurality of telescopic arms 403 to extend or contract sequentially, and then driving the telescopic mechanism 1 to go up and down.

Referring to Fig. 1 to Fig. 6, the telescoping mechanism 1 may be a hydraulic cylinder structure, or may be a structure such as a plurality of sleeves movably socketed with each other. Preferably, the telescoping mechanism 1 includes a plurality of sleeves, miniature pulleys 2 , sealing rings and pulling wires 16 . A plurality of sleeves are movably socketed from the inside to the outside, and a limit mechanism is set between two adjacent sleeves to prevent the sleeve from sliding out of the sleeve when it is extended; and the limit mechanism can be against each other The front end of the inner side of the sleeve is provided with a protrusion, and the rear end of the outer side of the sleeve is provided with a protrusion. When the sleeve slides forward to the limit position, the protrusion at the rear end of the sleeve is adjacent to the outer side. The lugs at the front end of the sleeve abut against each other to avoid disengagement. Wherein, the inner casing is the inner casing 18, the outer casing is the outer casing 11, and the remaining casings are telescopic casings 12, and the telescopic casing 12 is movably sleeved between the outer casing 11 and the inner casing 18. . The vibrator 13 is arranged at the front end of the inner casing 18 and can close the inner casing 18 to prevent concrete from flowing into the inner casing 18 . The right side of the rear end of the outer sleeve 11 and the right side of the rear end of each telescopic sleeve 12 are provided with two miniature pulleys 2 oppositely arranged front and back, and the miniature pulleys 2 are named as the first miniature pulley 202 . A miniature pulley 2 is arranged on the left side of the front end of the outer sleeve 11 and the front and back ends of each telescopic sleeve 12 , and the miniature pulley 2 is named as the second miniature pulley 201 . The rear end of the inner sleeve 18 is provided with two miniature pulleys 2 oppositely distributed left and right, and the miniature pulleys 2 are named as the third miniature pulley 203 . The inside of the front end of the outer sleeve 11 and the inside of the front end of each telescopic sleeve 12 are provided with a terminal sealing ring 10, and the outer rear end of the inner sleeve 18 is provided with an end sealing ring 14 to play a sealing role and prevent concrete Flow into the casing from the gap between the casings; and because the end sealing ring 10 and the end sealing ring 14 are ring-shaped, during the vibration process of the vibrator 13, it can play a role of shock absorption and avoid vibration affecting the The whole device and the end mold of the trolley. The lengths of all end sealing rings 10 along the stretching direction decrease sequentially from the inside to the outside, so that the frictional resistance on the bushings forms a gradient. During the subsequent driving stretching process, the bushings with small frictional resistance stretch first. That is, during the elongation process, the telescopic sleeve 12 is extended sequentially from the outside to the inside, and the inner sleeve 18 is stretched out at last; during the contraction process, the telescopic sleeve 12 is shrunk sequentially from the outside to the inside, and the inner sleeve 18 is retracted at last. The traction wire 16 is wound between all the miniature pulleys 2, and the rear end of the traction wire 16 extends beyond the rear end of the sleeve to drive the telescopic sleeve and the inner sleeve 18 to expand and contract. Wherein, the telescopic sleeve 12 is the first telescopic sleeve, the second telescopic sleeve, . . . , the Nth telescopic sleeve (N is an integer) from outside to inside. The traction line 16 is sequentially wound around the front side of the second miniature pulley 201 of the outer sleeve 11, the rear side of the second miniature pulley 201 at the rear end of the first telescopic sleeve, and the front side of the second miniature pulley 201 at the front end of the first telescopic sleeve. side, the rear side of the second miniature pulley 201 of the second telescopic sleeve rear end, the front side of the second miniature pulley 201 of the second telescopic sleeve front end, ..., the second miniature pulley 201 of the Nth telescopic sleeve rear end The rear side, the front side of the second miniature pulley 201 at the front end of the N telescopic sleeve, the rear side of the third miniature pulley 203 on the left side of the inner sleeve 18 rear end, the third miniature pulley on the right side of the inner sleeve 18 rear end 203, and between the two first miniature pulleys 202 of the casing from inside to outside in turn; and the rear end of the traction line 16 extends backwards out of the casing, and by pulling the traction rope, it can be driven to expand and contract The sleeve pipe and the inner sleeve pipe 18 are telescopic and simple in structure. In order to ensure that the miniature pulley 2 can work normally, the miniature pulley 2 at the rear end of the inner sleeve 18 and the miniature pulley 2 at the rear end of the telescopic sleeve 12 are always located inside the adjacent outer sleeve during the expansion and contraction of the sleeve, so as to avoid their contact External concrete; the miniature pulley 2 at the front end of the telescopic sleeve 12 is arranged inside the telescopic sleeve 12 and is positioned at the rear side of the end sealing ring 10, and the miniature pulley 2 at the front end of the outer sleeve 11 is located at the rear side of its end sealing ring 10, to avoid The miniature pulley 2 touches the external concrete. When in use, the front end of the outer casing 11 is matched with the working window, that is, the outer casing 11 is located outside the trolley end form 17 and will not contact concrete. Therefore, the casing in contact with the concrete can always maintain a sealed state, preventing concrete from flowing into the casing. During use, firstly drive all the sleeve pipes to be stretched in place, then drive the vibrator 13 to vibrate the concrete, then slowly shrink the sleeve pipes, and shrink the sleeve pipes while vibrating, which can improve the vibration effect.

With reference to Fig. 4, preferably, positioning pulley 15 is provided between adjacent two bushings, so that bushing slides along the front and back direction; The restraining effect can prevent mutual rotation between the sleeve pipes when the sleeve pipes expand and contract in the forward and backward direction.

Referring to FIG. 1 to FIG. 3 , preferably, the telescopic mechanism 1 includes a rotating pile 501 and a telescopic motor 502 . The swivel pile 501 is rotatably mounted on the rear end of the outer casing 11 , and the rear end of the pulling wire 16 is wound around the swivel pile 501 multiple times. The rotating shaft of telescoping motor 502 is connected with the rotating shaft of rotating pile 501 through coupling 503; Drive rotating pile 501 positive and negative through telescopic motor 502, just can drive traction line 16 retractable, and then drive sleeve pipe stretching.

Referring to FIG. 9 to FIG. 13 , preferably, the working window 19 includes a window, a blocking piece and a closing cover 198 . The window is installed at the end mold 17 of the trolley, and a window corresponding to the front end of the outer casing 11 of the telescopic mechanism 1 is provided on the window, and the window corresponds to the outer casing 11, so that when the telescopic mechanism 1 is docked with the window, The outer casing 11 can be correspondingly connected with the window to seal the window and prevent concrete from flowing out from the gap between the window and the outer casing 11 . The window is provided with at least four spacers that can be rotated toward the inside of the end mold 17 of the trolley, and the outer end of each spacer is connected to the window through a rotating part 196 and a rotating shaft 197 for rotation. And the inner end of each spacer is in the arc shape corresponding to the inner sleeve 18 of the telescopic mechanism. When the inner sleeve 18 is withdrawn, the inner end of the spacer can be fitted with the inner sleeve 18 to close the window. , to reduce gaps. The partition is in the closed state when it is not working, and it can be flipped forward to open due to the advancement of the telescopic mechanism 1 in the working state; when the telescopic mechanism 1 is retracted, the partition is always attached to the telescopic mechanism 1 under the pressure of the concrete until it stretches When the mechanism 1 is fully retracted, the barrier sheet will be closed automatically to prevent most of the concrete from flowing out. The lower end of the closure cover 198 is hinged with the lower end of the window in a manner capable of turning up and down, and is used for opening and closing the window. Wherein, the upper end of the closing cover 198 and the window can be connected by a lock, which is convenient for opening and closing. Further preferably, two of the blocking sheets are the first blocking sheets 195 , and the other two blocking sheets are the second blocking sheets 194 . The two first spacer pieces 195 are positioned at the front sides of the two second spacer pieces 194, and the two first spacer pieces 195 surround a hemispherical shell shape protruding forward, so that the hemispherical shell The two first spacers 195 of shape are located inside the trolley end mold 17 . Each second spacer piece 194 is a fan shape with a small inside and a large outside, and two second spacer pieces 194 are distributed along a diagonal line inclined downward from left to right, and two first spacer pieces 195 are distributed along a diagonal The diagonal distribution from left to right is inclined upward, so that the first spacer piece 195 and the second spacer piece 194 are arranged in a staggered manner to improve the sealing effect of the spacer. The second spacer piece 194 and the first spacer piece 195 are used in conjunction with each other, and the gap between the spacer piece and the sleeve can be further reduced during the process of extending and retracting the casing, thereby improving the spacer effect. During use, open the closure cover 198, the front end of the telescopic mechanism 1 is docked with the form, and the front end outside of the outer sleeve 11 is provided with a first bolt hole 192, and the form is provided with a second bolt hole 192 correspondingly connected to the first bolt hole. Bolt holes 191, the first bolt hole 192 and the second bolt hole 191 are connected by connecting bolts 193, so that the front end of the outer sleeve 11 is fixed on the window, and the outer sleeve 11 can be arranged correspondingly to the window to seal the window After driving the telescopic sleeve 12 and the inner sleeve 18 to elongate, the second spacer piece 194 and the first spacer piece 195 can be pushed forward, the window is opened, and the concrete is inserted into the concrete for vibrating; before vibrating, first Drive all the telescopic sleeves 12 and inner sleeves 18 to extend in place, then drive the vibrator 13 to vibrate the concrete, then slowly shrink the sleeves, and shrink the sleeves while vibrating, which can improve the vibration effect; During the shrinkage process of the tube 12 and the inner casing 18, the barrier piece rotates backwards by itself under the concrete pressure, and always fits the outer wall of the casing to reduce the gap between the window and the casing; after the vibration is completed, close the With the vibrator 13, all the casings are shrunk in place, the baffles are automatically closed under the concrete pressure, the connection between the outer casing 11 and the window is released, the telescopic mechanism 1 is driven away from the working window 19, and then the upper sealing cover 198 is closed. Can.

In the vibrating device of the present invention, a centralized control switch 504 can be set to control the work of the telescopic motor 502, the work of the motor 405 and the work of the hydraulic propeller, and the control method is simple and convenient.

Adopting the vibrating device of the present invention can vibrate any position of the same horizontal concrete layer, increase the vibrating range without blind spots, avoid vibration leakage, effectively improve the vibrating quality, increase the compactness of concrete, and reduce the anti-arc section The following honeycomb pockmarks and air bubbles make the lining concrete achieve the effect of internal solidity and external beauty.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to make and use various exemplary embodiments of the invention, as well as various Choose and change. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (8)

1. Novel adjustable plug-in type vibrating device of tunnel second lining, its characterized in that includes:

a bottom plate;

the guide rail is arranged on the bottom plate, and the lengths of the guide rail are distributed along the tunneling direction;

the bottom of the sliding steel frame is in sliding connection with the guide rail, and the sliding steel frame is driven to slide through a sliding driving mechanism;

the lower end of the lifting device is arranged on the sliding steel frame and used for lifting;

the telescopic mechanism is arranged at the upper end of the lifting device, the lengths of the telescopic mechanism are distributed along the tunneling direction, and the telescopic mechanism is driven to stretch through the telescopic driving mechanism;

the vibrator is arranged at the front end of the telescopic mechanism and is used for vibrating concrete; and

the working window is arranged at the trolley end mould and is provided with a window which corresponds to the front end of the telescopic mechanism and can be opened and closed.

2. The novel adjustable plug-in vibrating device for a tunnel secondary liner according to claim 1, wherein the sliding driving mechanism comprises a hydraulic propeller, the hydraulic propeller is mounted on the bottom plate and located at the rear side of the sliding steel frame, and a push rod of the hydraulic propeller is connected with the sliding steel frame.

3. The novel adjustable plug-in vibrating device for the tunnel secondary lining according to claim 1, wherein the lifting device comprises a rope-type telescopic arm mechanism, the rope-type telescopic arm mechanism comprises a plurality of telescopic arms and an electric push rod, the telescopic arms are movably sleeved with each other and are connected by adopting a rope-type structure, the electric push rod is positioned in the telescopic arms, the electric push rod is connected with a motor, and a traction pulley connected with a traction rope of the rope-type structure is arranged at the upper end of the electric push rod.

4. The novel adjustable plug-in vibrating device of a tunnel liner of claim 1, wherein the telescoping mechanism comprises:

the sleeves are sleeved with each other in a movable manner from inside to outside; the sleeve pipe positioned inside is an inner sleeve pipe, the sleeve pipe positioned outside is an outer sleeve pipe, the rest sleeve pipes are telescopic sleeve pipes, and the telescopic sleeve pipes are movably sleeved between the outer sleeve pipe and the inner sleeve pipe; the vibrator is arranged at the front end of the inner sleeve;

the right side of the rear end of the outer sleeve and the right side of the rear end of each telescopic sleeve are respectively provided with two miniature pulleys which are arranged in a front-back opposite mode, and the left side of the front end of the outer sleeve and the front-back two ends of the left side of each telescopic sleeve are respectively provided with one miniature pulley; the rear end of the inner sleeve is provided with two micro pulleys which are distributed oppositely left and right;

the inner side of the front end of the outer sleeve and the inner side of the front end of each telescopic sleeve are respectively provided with an end sealing ring, and the outer side of the rear end of the inner sleeve is provided with an end sealing ring; the lengths of all the end sealing rings along the expansion direction are sequentially reduced from inside to outside; and

and the traction wire is wound between all the micro pulleys, and the rear end of the traction wire extends out of the rear end of the sleeve and is used for driving the telescopic sleeve and the inner sleeve to stretch.

5. The novel adjustable inserted vibration device of a tunnel liner of claim 4, wherein a positioning pulley is arranged between two adjacent sleeves.

6. The adjustable second liner new and inserted vibration device of claim 4, wherein the telescoping mechanism comprises:

a rotary pile rotatably mounted to the rear end of the outer sleeve, the rear end of the traction wire being wound around the rotary pile for a plurality of turns; and

and the rotating shaft of the telescopic motor is connected with the rotating shaft of the rotary pile through a coupler.

7. The adjustable plug-in vibration device of claim 1, wherein the working window comprises:

the window body is arranged at the trolley end mould, and the window body is provided with the window which is correspondingly connected with the front end of the telescopic mechanism;

the window is provided with at least four baffle plates which can be rotated and opened towards the interior of the trolley end mould, the outer end of each baffle plate is rotationally connected with the window body, and the inner end of each baffle plate is in an arc shape corresponding to the telescopic mechanism; and

and the lower end of the closing cover is hinged with the lower end of the window body in a manner of being capable of turning up and down and is used for opening and closing the window.

8. The novel adjustable inserted vibration device of a tunnel liner of claim 7, wherein two of said barrier sheets are first barrier sheets and two other barrier sheets are second barrier sheets; the two first separation baffle plates are positioned at the front sides of the two second separation baffle plates, the two first separation baffle plates are enclosed into a hemispherical shell shape protruding forwards, and each second separation baffle plate is in a fan shape with a small inside and a large outside; the two second separation baffle plates are distributed along a diagonal line inclined downwards from left to right, and the two first separation baffle plates are distributed along a diagonal line inclined upwards from left to right.

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