CN111236097B - Urban bridge dismantling device and construction method - Google Patents
Urban bridge dismantling device and construction method Download PDFInfo
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- CN111236097B CN111236097B CN202010135153.2A CN202010135153A CN111236097B CN 111236097 B CN111236097 B CN 111236097B CN 202010135153 A CN202010135153 A CN 202010135153A CN 111236097 B CN111236097 B CN 111236097B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention relates to the technical field of bridge dismantling, in particular to a dismantling device and a construction method for an urban bridge. According to the pier dismantling device, the output shaft is driven to rotate by the servo motor through the output end, the worm at the lower end is driven to rotate by the output shaft, the worm drives the worm wheel to rotate so as to drive the rotating shaft to rotate, the rotating shaft drives the crushing cone to rotate, and the crack of the side wall of the pier is subjected to hole turning, so that the pier is collapsed more easily and is dismantled, the dismantling effect is improved, and time and labor are saved.
Description
Technical Field
The invention relates to the technical field of bridge demolition, in particular to a demolition device and a construction method for an urban bridge.
Background
The blasting demolition of the existing beam bridge is a common demolition construction scheme in the prior art, and is particularly suitable for demolition engineering construction in cities. The drilling blasting is a measure that the impact action of the detonation wave peak pressure on a medium can be relieved by selecting proper explosive varieties and reasonable charging structures and the like during blasting control by utilizing a buffering principle, so that the explosive energy is reasonably distributed and utilized, and the harmful effects of excessive crushing and blasting are reduced.
After the bridge collapses, a plurality of half piers on the ground are required to be dismantled, and the piers are high in hardness and are often crushed by an iron hammer, so that time and labor are wasted.
In order to solve the problems, a device and a construction method for dismantling an urban bridge are provided.
Disclosure of Invention
The invention aims to solve the defects that after a bridge collapses, a plurality of half piers on the ground need to be dismantled, the piers are high in hardness and are broken by hammers of workers, and time and labor are wasted in the prior art, and the urban bridge dismantling device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for dismantling an urban bridge comprises a base, wherein a sliding groove is formed in the upper end face of the base, a driving mechanism is arranged on the upper end face of the base, a sliding seat plate is connected in the sliding groove in a sliding mode, a vertical rod is vertically arranged on the upper end face of the sliding seat plate, a sliding plate is arranged on the upper end face of the vertical rod and is vertically and slidably connected in the vertical rod, a top plate is fixedly arranged on the upper end face of the sliding plate, an adjusting mechanism is arranged on the upper end face of the top plate, one end, away from the rotating rod, of the top plate is rotatably connected with a second rotating plate, the upper end of the second rotating plate is rotatably connected with one end, away from a control motor, of the top plate, a crushing mechanism is arranged at the lower end of the second rotating plate and comprises a first fixed shell, two buffer plates are slidably connected in the first fixed shell, and a crushing cone is rotatably connected between the two buffer plates, the right end face of the crushing cone is fixedly connected with a rotating shaft, a worm wheel is fixedly sleeved on the rotating shaft, the other end of the rotating shaft is rotatably connected to the inner wall of a first fixed shell, two fixed plates are symmetrically arranged on the inner wall of the first fixed shell, the two fixed plates are respectively and fixedly arranged on the inner wall of the first fixed shell, a telescopic rod is fixedly arranged on the side wall of each fixed plate, the other end of each telescopic rod is fixedly arranged on the side wall of a buffer plate, two springs are symmetrically arranged on the two sides of each telescopic rod, the two ends of each spring are respectively and fixedly connected to the buffer plate and the fixed plates, a servo motor is fixedly arranged on a second rotating plate, an output shaft is fixedly arranged at the output end of the servo motor, the lower end of the output shaft penetrates through the side wall of the first fixed shell and is fixedly provided with a worm, the worm is connected with the worm wheel in a meshed mode, the output shaft is connected in the side wall of the first fixing shell in a rotating mode, a second telescopic cylinder is fixedly mounted on the side wall of the vertical rod, the upper end of the second telescopic cylinder is fixedly connected to the bottom end face of the top plate through a piston rod, and the upper end face of the sliding seat plate is provided with a hammer mechanism.
Preferably, the hammer mechanism includes the mounting panel, mounting panel fixed mounting is at the up end of saddle board, the vertical fixed mounting of up end of mounting panel has the bracing piece, the up end of bracing piece rotates and is connected with the striking pole, the slide opening has been seted up on the lateral wall of striking pole.
Preferably, one end of the striking rod, which deviates from the supporting rod, is fixedly provided with a second fixed shell, a disc spring group is fixedly arranged in the second fixed shell, the other end of the disc spring group is fixedly provided with a limiting block, and the other end of the limiting block is fixedly provided with a breaking hammer.
Preferably, the one end that the quartering hammer deviates from the stopper runs through the lateral wall of the fixed casing of second and extends to the external world, fixed mounting has first telescopic cylinder on the left side wall of mounting panel, the lower extreme of first telescopic cylinder has the connecting rod through the horizontal fixed mounting of piston rod, the vertical fixed mounting of the other end of connecting rod has the support slide bar, the upper end sliding connection of support slide bar is in the slide hole.
Preferably, adjustment mechanism includes the control motor, control motor fixed mounting is at the up end of roof, the output fixed mounting of control motor has the rolling disc, it is connected with the dwang to rotate on the lateral wall of rolling disc, the lower extreme fixed rotation of dwang is connected with first rotation board, the center department of first rotation board rotates to be connected on the lateral wall of roof.
Preferably, actuating mechanism includes step motor, step motor fixed mounting is at the up end of base, step motor's output fixed mounting has the fluted roller, the lower terminal surface meshing of fluted roller is connected with the pinion rack, pinion rack fixed mounting is at the up end of slide plate.
The invention also provides a construction method of the urban bridge dismantling device, which comprises the following steps:
firstly, after the bridge is pushed to the place to be dismantled, firstly, the trolley is pushed to the place to be dismantled, then, the stepping motor is started, the stepping motor drives the toothed roller to rotate through the output end, and the toothed roller is meshed with the toothed plate, so that the toothed roller can drive the toothed plate to move left and right in the sliding groove, and the positions of the crushing cone and the crushing hammer above the sliding seat plate can be adjusted according to the position of a bridge pier, and the method is fast and convenient;
secondly, starting the first telescopic cylinder, pushing the connecting rod to move downwards through the piston rod at the lower end of the first telescopic cylinder, enabling the connecting rod to drive the supporting slide rod to move downwards, enabling the supporting slide rod to drive the right end of the striking rod to move downwards, enabling the striking rod to drive the second fixed shell to move downwards, enabling the second fixed shell to hammer the bridge pier through the breaking hammer, and enabling the connecting rod to hammer the bridge pier through the continuous up-and-down movement of the right end of the striking rod driven by the supporting slide rod when the first telescopic cylinder continuously pulls the connecting rod up and down through the piston rod at the output end, so that the bridge pier can collapse;
thirdly, the second telescopic cylinder pushes the top plate to move up and down through the piston rod at the upper end, the height of the first fixed shell is adjusted according to the height of the pier, then the control motor is started, the control motor drives the rotating disc to rotate through the output end, so that the rotating disc drives the rotating rod to rotate, the rotating rod continuously drives the first rotating plate to move up and down, the other end of the first rotating plate continuously drives the second rotating plate to swing up and down, so that the second rotating plate drives the lower crushing cone to continuously impact the side wall of the pier, and cracks are formed on the side wall of the pier;
and step four, starting the servo motor, driving the output shaft to rotate through the output end of the servo motor, driving the worm at the lower end to rotate through the output shaft, driving the worm wheel to rotate through the worm, further driving the rotating shaft to rotate, driving the crushing cone to rotate through the rotating shaft, and rotating the crack of the side wall of the pier to rotate, so that the pier collapses more easily and is dismantled, and the dismantling efficiency is improved.
Preferentially, in the third step, the in-process of broken awl to pier lateral wall striking, broken awl can take place vibrations, and broken awl can be through the continuous oppression telescopic link and the spring of buffer board, and the in-process of spring and telescopic link mutually supporting can be to the continuous shock attenuation of broken awl, has reduced the harm of vibrations to broken awl, has prolonged the life of broken awl.
Compared with the prior art, the invention has the beneficial effects that:
after the bridge is pushed to the bridge, firstly, the trolley is pushed to a place needing to be dismantled, then, the stepping motor is started, the stepping motor drives the toothed roller to rotate through the output end, because the toothed roller is meshed with the toothed plate, the toothed roller can drive the toothed plate to move left and right in the sliding chute, and then the positions of the breaking cone and the breaking hammer above the sliding seat plate can be adjusted according to the position of the bridge pier, so that the bridge is fast and convenient to use, the first telescopic cylinder is started, the first telescopic cylinder pushes the connecting rod to move downwards through the piston rod at the lower end, so that the connecting rod drives the supporting slide rod to move downwards, the supporting slide rod drives the right end of the striking rod to move downwards, the striking rod drives the second fixed shell to move downwards, the bridge pier is hammered through the breaking hammer, when the first telescopic cylinder continuously pulls the connecting rod up and down through the piston rod at the output end, so that the connecting rod drives the right end of the striking rod to do continuous up and down movement through the supporting slide rod to hammer the bridge pier, the pier can be collapsed, the second telescopic cylinder pushes the top plate to move up and down through the piston rod at the upper end, the height of the first fixed shell is adjusted according to the height of the pier, then the control motor is started, the control motor drives the rotating disc to rotate through the output end, the rotating disc drives the rotating rod to rotate, the rotating rod continuously drives the first rotating plate to move up and down, the other end of the first rotating plate continuously drives the second rotating plate to swing up and down, the second rotating plate drives the lower crushing cone to continuously impact the side wall of the pier, cracks appear on the side wall of the pier, the crushing cone can vibrate in the process of impacting the side wall of the pier, the crushing cone can continuously press the telescopic rod and the spring through the buffer plate, the spring and the telescopic rod can continuously absorb shock in the process of mutually matching, the damage of the shock to the crushing cone is reduced, and the service life of the crushing cone is prolonged, start servo motor, servo motor passes through the output and drives the output shaft rotation, and the output shaft drives the worm of lower extreme and rotates, and the worm drives the worm wheel and rotates, and then drives the axis of rotation and rotate, and the axis of rotation drives broken awl and rotates, changes the hole to the crack department of pier lateral wall for the pier collapses more easily and is demolishd, has improved demolishd effect, labour saving and time saving.
Drawings
Fig. 1 is a schematic front structural view of a demolition apparatus for an urban bridge according to the present invention;
FIG. 2 is an enlarged schematic view at B of FIG. 1;
FIG. 3 is an enlarged schematic view at A in FIG. 1;
fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
In the figure: 1 connecting rod, 2 first telescopic cylinder, 3 bracing pieces, 4 slide holes, 5 striking rods, 6 supporting slide rods, 7 mounting plates, 8 sliding seat plates, 9 second telescopic cylinders, 10 bases, 11 vertical rods, 12 rotating rods, 13 rotating disks, 14 first rotating plates, 15 top plates, 16 second rotating plates, 17 servo motors, 18 output shafts, 19 springs, 20 telescopic rods, 21 fixing plates, 22 rotating shafts, 23 worm gears, 24 buffer plates, 25 crushing cones, 26 first fixing shells, 27 crushing hammers, 28 limiting blocks, 29 second fixing shells, 30 disc spring groups, 31 stepping motors, 32 toothed rollers, 33 toothed plates and 34 sliding chutes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-4, a dismounting device for an urban bridge comprises a base 10, a sliding groove 34 is formed in the upper end surface of the base 10, a driving mechanism is arranged on the upper end surface of the base 10, the driving mechanism comprises a stepping motor 31, the stepping motor 31 is fixedly installed on the upper end surface of the base 10, a gear roller 32 is fixedly installed at the output end of the stepping motor 31, a toothed plate 33 is engaged and connected to the lower end surface of the gear roller 32, the toothed plate 33 is fixedly installed on the upper end surface of a sliding seat plate 8, the sliding seat plate 8 is slidably connected in the sliding groove 34, a vertical rod 11 is vertically arranged on the upper end surface of the sliding seat plate 8, a sliding plate is arranged on the upper end surface of the vertical rod 11, the sliding plate is vertically and slidably connected in the vertical rod 11, a top plate 15 is fixedly installed on the upper end surface of the sliding plate, an adjusting mechanism is arranged on the upper end surface of the top plate 15, the adjusting mechanism comprises a control motor, the control motor is fixedly installed on the upper end surface of the top plate 15, a rotating disc 13 is fixedly installed on the output end surface of the control motor, a rotating rod 12 is rotatably connected to the side wall of the rotating disk 13, a first rotating plate 14 is fixedly and rotatably connected to the lower end of the rotating rod 12, the center of the first rotating plate 14 is rotatably connected to the side wall of the top plate 15, the end, away from the rotating rod 12, of the top plate 15 is rotatably connected to a second rotating plate 16, the upper end of the second rotating plate 16 is rotatably connected to the end, away from the control motor, of the top plate 15, a crushing mechanism is arranged at the lower end of the second rotating plate 16 and comprises a first fixing shell 26, two buffer plates 24 are slidably connected to the first fixing shell 26, a crushing cone 25 is rotatably connected between the two buffer plates 24, a rotating shaft 22 is fixedly connected to the right end face of the crushing cone 25, a worm wheel 23 is fixedly sleeved on the rotating shaft 22, the other end of the rotating shaft 22 is rotatably connected to the inner wall of the first fixing shell 26, two fixing plates 21 are symmetrically arranged on the inner wall of the first fixing shell 26, two fixing plates 21 are respectively and fixedly installed on the inner wall of a first fixing shell 26, a telescopic rod 20 is fixedly installed on the side wall of each fixing plate 21, the other end of each telescopic rod 20 is fixedly installed on the side wall of a buffer plate 24, two springs 19 are symmetrically arranged on two sides of each telescopic rod 20, two ends of each spring 19 are respectively and fixedly connected to the buffer plate 24 and the fixing plate 21, a servo motor 17 is fixedly installed on a second rotating plate 16, an output end of the servo motor 17 is fixedly installed with an output shaft 18, the lower end of the output shaft 18 penetrates through the side wall of the first fixing shell 26 and is fixedly installed with a worm, the worm is meshed with a worm wheel 23, the output shaft 18 is rotatably connected in the side wall of the first fixing shell 26, a second telescopic cylinder 9 is fixedly installed on the side wall of a vertical rod 11, and the upper end of the second telescopic cylinder 9 is fixedly connected to the bottom end face of a top plate 15 through a piston rod, the upper end face of the sliding seat plate 8 is provided with a hammer mechanism, the hammer mechanism comprises a mounting plate 7, the mounting plate 7 is fixedly mounted on the upper end face of the sliding seat plate 8, the upper end face of the mounting plate 7 is vertically and fixedly provided with a support rod 3, the upper end face of the support rod 3 is rotatably connected with a striking rod 5, the side wall of the striking rod 5 is provided with a slide hole 4, one end of the striking rod 5, which is far away from the support rod 3, is fixedly provided with a second fixed shell 29, a disc spring group 30 is fixedly mounted in the second fixed shell 29, the other end of the disc spring group 30 is fixedly provided with a limit block 28, the other end of the limit block 28 is fixedly provided with a breaking hammer 27, one end of the breaking hammer 27, which is far away from the limit block 28, penetrates through the side wall of the second fixed shell 29 and extends to the outside, the left side wall of the mounting plate 7 is fixedly provided with a first telescopic cylinder 2, the lower end of the first telescopic cylinder 2 is transversely and fixedly provided with a connecting rod 1 through a piston rod, the other end of the connecting rod 1 is vertically and fixedly provided with a supporting slide rod 6, and the upper end of the supporting slide rod 6 is connected in the slide hole 4 in a sliding manner.
The invention also provides a construction method of the urban bridge dismantling device, which comprises the following steps:
the method comprises the following steps: after the bridge is pushed to the place, firstly, the trolley is pushed to the place needing to be dismantled, then the stepping motor 31 is started, the stepping motor 31 drives the tooth roller 32 to rotate through the output end, the tooth roller 32 is meshed with the toothed plate 33, the toothed roller 32 can drive the toothed plate 33 to move left and right in the sliding groove 34, and then the positions of the crushing cone 25 and the crushing hammer 27 above the sliding seat plate 8 can be adjusted according to the position of a bridge pier, so that the operation is fast and convenient;
step two: starting the first telescopic cylinder 2, wherein the first telescopic cylinder 2 pushes the connecting rod 1 to move downwards through the piston rod at the lower end, so that the connecting rod 1 drives the supporting slide rod 6 to move downwards, the supporting slide rod 6 drives the right end of the striking rod 5 to move downwards, the striking rod 5 drives the second fixed shell 29 to move downwards, the second fixed shell 29 hammers the bridge pier through the breaking hammer 27, and when the first telescopic cylinder 2 continuously pulls the connecting rod 1 up and down through the piston rod at the output end, the connecting rod 1 drives the right end of the striking rod 5 to continuously move up and down through the supporting slide rod 6 to hammer the bridge pier, so that the bridge pier can collapse;
step three: the second telescopic cylinder 9 pushes the top plate 15 to move up and down through the piston rod at the upper end, the height of the first fixed shell 26 is adjusted according to the height of the pier, then the control motor is started, the control motor drives the rotating disc 13 to rotate through the output end, so that the rotating disc 13 drives the rotating rod 12 to rotate, the rotating rod 12 continuously drives the first rotating plate 14 to move up and down, the other end of the first rotating plate 14 continuously drives the second rotating plate 16 to swing up and down, so that the second rotating plate 16 drives the lower crushing cone 25 to continuously impact the side wall of the pier, cracks appear on the side wall of the pier, the crushing cone 25 vibrates in the process of impacting the side wall of the pier, the crushing cone 25 continuously compresses the telescopic rod 20 and the spring 19 through the buffer plate 24, the spring 19 and the telescopic rod 20 are continuously damped to the crushing cone 25 in the process of mutually matching, and damage of the vibration to the crushing cone 25 is reduced, the service life of the crushing cone 25 is prolonged;
step four: starting servo motor 17, servo motor 17 drives output shaft 18 through the output and rotates, and output shaft 18 drives the worm of lower extreme and rotates, and the worm drives worm wheel 23 and rotates, and then drives axis of rotation 22 and rotate, and axis of rotation 22 drives broken awl 25 and rotates, changes the hole to the crack department of pier lateral wall for the pier collapses more easily and is demolishd, has improved and has demolishd the effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The urban bridge dismantling device comprises a base (10) and is characterized in that a sliding groove (34) is formed in the upper end face of the base (10), a driving mechanism is arranged on the upper end face of the base (10), a sliding seat plate (8) is connected in the sliding groove (34) in a sliding mode, a vertical rod (11) is arranged on the upper end face of the sliding seat plate (8), a sliding plate is arranged on the upper end face of the vertical rod (11), the sliding plate is vertically and slidably connected in the vertical rod (11), a top plate (15) is fixedly arranged on the upper end face of the sliding plate, an adjusting mechanism is arranged on the upper end face of the top plate (15), the adjusting mechanism comprises a control motor, the control motor is fixedly arranged on the upper end face of the top plate (15), a rotating disc (13) is fixedly arranged at the output end of the control motor, a rotating rod (12) is rotatably connected on the side wall of the rotating disc (13), the lower extreme fixed rotation of dwang (12) is connected with first dwang (14), the center department of first dwang (14) rotates to be connected on the lateral wall of roof (15), roof (15) deviate from the one end of dwang (12) and rotate and be connected with second dwang (16), the upper end of second dwang (16) is rotated and is connected in roof (15) one end that deviates from the control motor, the lower extreme of second dwang (16) is provided with crushing mechanism, crushing mechanism includes first fixed casing (26), sliding connection has two buffer boards (24) in first fixed casing (26), two rotate between buffer board (24) and be connected with broken awl (25), the right-hand member face fixedly connected with axis of rotation (22) of broken awl (25), fixed cover is equipped with worm wheel (23) on axis of rotation (22), the other end rotation of axis of rotation (22) is connected on the inner wall of first fixed casing (26), the inner wall of the first fixed shell (26) is symmetrically provided with two fixed plates (21), the two fixed plates (21) are respectively and fixedly installed on the inner wall of the first fixed shell (26), the side wall of each fixed plate (21) is fixedly provided with a telescopic rod (20), the other end of each telescopic rod (20) is fixedly installed on the side wall of a buffer plate (24), two springs (19) are symmetrically arranged on two sides of each telescopic rod (20), two ends of each spring (19) are respectively and fixedly connected onto the buffer plate (24) and the fixed plate (21), a servo motor (17) is fixedly installed on the second rotating plate (16), an output end of the servo motor (17) is fixedly provided with an output shaft (18), the lower end of the output shaft (18) penetrates through the side wall of the first fixed shell (26) and is fixedly provided with a worm, the utility model discloses a pier is characterized in that worm and worm wheel (23) meshing is connected, output shaft (18) rotate to be connected in the lateral wall of first fixed casing (26), fixed mounting has second telescopic cylinder (9) on the lateral wall of montant (11), piston rod fixed connection is passed through at the bottom face of roof (15) in the upper end of second telescopic cylinder (9), the up end of saddle board (8) sets up hammer stone mechanism, starts the control motor, and the control motor passes through the output and drives rolling disc (13) and rotate for rolling disc (13) drive dwang (12) rotate, and the continuous first rotor plate (14) up-and-down motion that drives of dwang (12), the continuous second rotor plate (16) luffing motion that drives of the other end of first rotor plate (14) for second rotor plate (16) drive the continuous striking pier lateral wall of broken awl (25) of below.
2. The urban bridge demolition device according to claim 1, wherein the hammer mechanism comprises a mounting plate (7), the mounting plate (7) is fixedly mounted on an upper end surface of the slide plate (8), a support rod (3) is vertically and fixedly mounted on the upper end surface of the mounting plate (7), a striking rod (5) is rotatably connected to the upper end surface of the support rod (3), and a slide hole (4) is formed in a side wall of the striking rod (5).
3. The urban bridge demolishing device according to claim 2, wherein, a second fixed casing (29) is fixedly installed at one end of the striking rod (5) departing from the support rod (3), a disc spring set (30) is fixedly installed in the second fixed casing (29), a limiting block (28) is fixedly installed at the other end of the disc spring set (30), and a breaking hammer (27) is fixedly installed at the other end of the limiting block (28).
4. The urban bridge demolishing device of claim 3, characterized in that, the one end that quartering hammer (27) deviates from stopper (28) runs through the lateral wall of second fixed casing (29) and extends to the external world, fixed mounting has first telescopic cylinder (2) on the left side wall of mounting panel (7), the lower extreme of first telescopic cylinder (2) has connecting rod (1) through the horizontal fixed mounting of piston rod, the vertical fixed mounting of the other end of connecting rod (1) has support slide bar (6), the upper end sliding connection of support slide bar (6) is in slide opening (4).
5. The urban bridge demolition device according to claim 4, wherein the driving mechanism comprises a stepping motor (31), the stepping motor (31) is fixedly installed on the upper end face of the base (10), the output end of the stepping motor (31) is fixedly installed with a toothed roller (32), the lower end face of the toothed roller (32) is in meshing connection with a toothed plate (33), and the toothed plate (33) is fixedly installed on the upper end face of the slide seat plate (8).
6. The construction method of the urban bridge demolition device according to claim 5, characterized by comprising the steps of:
firstly, after a bridge is pushed to the place to be dismantled, firstly, a trolley is pushed to the place to be dismantled, then a stepping motor (31) is started, the stepping motor (31) drives a toothed roller (32) to rotate through an output end, and the toothed roller (32) is meshed with a toothed plate (33), so that the toothed roller (32) can drive the toothed plate (33) to move left and right in a sliding groove (34), and then the positions of a crushing cone (25) and a crushing hammer (27) above a sliding seat plate (8) can be adjusted according to the position of a bridge pier, and the method is fast and convenient;
secondly, starting the first telescopic cylinder (2), wherein the first telescopic cylinder (2) pushes the connecting rod (1) to move downwards through a piston rod at the lower end, so that the connecting rod (1) drives the supporting slide rod (6) to move downwards, the supporting slide rod (6) drives the right end of the striking rod (5) to move downwards, the striking rod (5) drives the second fixed shell (29) to move downwards, the second fixed shell (29) hammers the bridge pier through the breaking hammer (27), and when the first telescopic cylinder (2) continuously pulls the connecting rod (1) up and down through the piston rod at the output end, the connecting rod (1) drives the right end of the striking rod (5) to continuously move up and down through the supporting slide rod (6) to hammer the pier, so that the pier can collapse;
thirdly, the second telescopic cylinder (9) pushes the top plate (15) to move up and down through the piston rod at the upper end, the height of the first fixed shell (26) is adjusted according to the height of the pier, then the control motor is started, the control motor drives the rotating disc (13) to rotate through the output end, so that the rotating disc (13) drives the rotating rod (12) to rotate, the rotating rod (12) continuously drives the first rotating plate (14) to move up and down, the other end of the first rotating plate (14) continuously drives the second rotating plate (16) to swing up and down, and the second rotating plate (16) drives the lower crushing cone (25) to impact the continuous side wall of the pier, so that cracks appear on the side wall of the pier;
and step four, starting the servo motor (17), driving the output shaft (18) to rotate by the servo motor (17) through the output end, driving the worm at the lower end to rotate by the output shaft (18), driving the worm wheel (23) to rotate by the worm, further driving the rotating shaft (22) to rotate, driving the crushing cone (25) to rotate by the rotating shaft (22), and rotating the crack of the side wall of the pier to form a hole, so that the pier is collapsed more easily and is dismantled, and the dismantling efficiency is improved.
7. The construction method of the urban bridge demolition device according to claim 6, wherein in the third step, the crushing cone (25) vibrates during the process that the crushing cone (25) impacts the side wall of the pier, the crushing cone (25) can continuously press the telescopic rod (20) and the spring (19) through the buffer plate (24), and the spring (19) and the telescopic rod (20) can continuously absorb shock to the crushing cone (25) during the process that the spring (19) and the telescopic rod (20) are matched with each other, so that the damage of the vibration to the crushing cone (25) is reduced, and the service life of the crushing cone (25) is prolonged.
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| CN202010135153.2A CN111236097B (en) | 2020-03-02 | 2020-03-02 | Urban bridge dismantling device and construction method |
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| CN113695169B (en) * | 2021-09-23 | 2022-09-27 | 湖南弘钧电子科技有限公司 | Dispensing machine |
| CN114232524B (en) * | 2022-01-28 | 2023-04-21 | 中铁二十二局集团第三工程有限公司 | Construction monitoring method for dismantling tied arch bridge |
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