CN114892544A - Bridge expansion joint repairing device and repairing method thereof - Google Patents
Bridge expansion joint repairing device and repairing method thereof Download PDFInfo
- Publication number
- CN114892544A CN114892544A CN202210324448.3A CN202210324448A CN114892544A CN 114892544 A CN114892544 A CN 114892544A CN 202210324448 A CN202210324448 A CN 202210324448A CN 114892544 A CN114892544 A CN 114892544A
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- expansion joint
- bearing box
- bridge expansion
- supporting rod
- box
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims abstract description 49
- 238000005520 cutting process Methods 0.000 claims abstract description 41
- 239000012528 membrane Substances 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000007480 spreading Effects 0.000 claims abstract description 29
- 238000003892 spreading Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000008439 repair process Effects 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 6
- 238000005406 washing Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 241001504664 Crossocheilus latius Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Classifications
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Abstract
The invention relates to the technical field of bridge maintenance, and particularly discloses a bridge expansion joint repairing device and a repairing method thereof, wherein the bridge expansion joint repairing device comprises a bearing box, a spreading mechanism and a cleaning mechanism; the spreading mechanism comprises a spreading roller which is rotatably connected to the inner wall of the bearing box; the cleaning mechanism comprises a supporting rod, one end of the supporting rod is rotatably connected to the side wall of the bearing box, a transmission mechanism is coaxially and rotatably connected with the rotating connection position of the supporting rod and the bearing box, a cutting knife is vertically and slidably connected inside the bearing box, the cutting knife is positioned on one side close to the spreading roller, the transmission mechanism can drive the cutting knife to vertically and freely slide, and the cutting knife is positioned above the discharging direction of the spreading roller; the other end of the supporting rod is provided with a cleaning roller. The invention aims to provide a bridge expansion joint repairing device and a bridge expansion joint repairing method, and aims to solve the technical problems that an expansion joint is difficult to clean and waterproof membrane covering efficiency is low.
Description
Technical Field
The invention relates to the technical field of bridge maintenance, and particularly discloses a bridge expansion joint repairing device and a bridge expansion joint repairing method.
Background
With the progress of society and the development of national economy, the requirements on the safety performance of bridge engineering in transportation are higher and higher. The expansion joint of the bridge is a necessary guarantee for the safety of the bridge. The existing bridge expansion joint is influenced by a plurality of factors in construction and later-period maintenance, so that the problem that the expansion joint is damaged frequently occurs, the service life of the bridge is shortened, and the life and property safety of a user is threatened. So that the bridge expansion joints need to be repaired periodically.
The existing bridge expansion joint repair process, for example, chinese patent (publication number: CN 112391958A), discloses a method for quickly repairing a bridge expansion joint, which comprises the steps of performing joint cutting treatment on a damaged expansion joint structure to be repaired; chiseling the damaged concrete and the reinforcing steel bar structure at the part to be repaired, and washing and cleaning; embedding anchoring steel bars at the original concrete side, fixing to form a steel bar framework, and then erecting a formwork; installing an expansion joint, and welding the expansion joint with the embedded steel bars after adjustment and fixation; washing the pit and spraying an interfacial agent; mixing super early strength materials and performing layered pouring work; after the material is initially set, leveling and smoothing, spraying a curing agent, and then curing; and after maintenance, the traffic can be opened.
And in order to guarantee that the expansion joint avoids the concrete to fall into the slot of expansion joint at the casting concrete in-process, still can pave the waterproof membrane to the expansion joint before the casting usually. For example, chinese patent publication No. CN106498849A discloses a bridge expansion joint, which includes pre-buried steel bars, expansion joints, installation grooves, pavement layers and elastic material layers; the construction process comprises the following steps: according to the construction requirement and the specification of the bridge expansion joint, performing joint cutting treatment on the concrete bridge deck; carrying out steel bar pre-embedding work on the bridge expansion joint, adjusting and fixing, and carrying out pre-embedded steel bar welding work after ensuring no deviation; paving a waterproof membrane in the expansion joint, brushing a separation interface layer above the waterproof membrane, and then starting concrete pouring work of a pavement layer; and after the pouring work is finished for 48 hours, taking out the waterproof membrane paved in the expansion joint, carrying out water closing inspection and construction acceptance, and finishing the construction of the bridge expansion joint after the waterproof membrane is qualified.
However, in the prior art, the waterproof membrane is paved and the inside of the expansion joint is cleaned independently in two separate steps, so that the problem of slow construction efficiency exists. And because the current expansion joint structure is special, common cleaning equipment is difficult to go deep into the inside of expansion joint and wash, consequently also has the problem of washing the difficulty.
Disclosure of Invention
The invention aims to provide a bridge expansion joint repairing device and aims to solve the technical problems that an expansion joint is difficult to clean and waterproof membrane covering efficiency is low.
In order to achieve the purpose, the basic scheme of the invention is as follows: a bridge expansion joint repairing device comprises a bearing box, a spreading mechanism and a cleaning mechanism, wherein the bearing box is provided with a walking mechanism;
the spreading mechanism comprises a spreading roller which is rotatably connected to the inner wall of the bearing box;
the cleaning mechanism comprises a supporting rod, one end of the supporting rod is rotatably connected to the side wall of the bearing box, a transmission mechanism is coaxially and rotatably connected with the rotating connection position of the supporting rod and the bearing box, a cutting knife is vertically and slidably connected inside the bearing box, the cutting knife is positioned on one side close to the spreading roller, the transmission mechanism can drive the cutting knife to vertically and freely slide, and the cutting knife is positioned above the discharging direction of the spreading roller; the other end of the supporting rod is provided with a cleaning roller; the cleaning roller is positioned below the bearing box.
The working principle and the beneficial effects of the basic scheme are as follows: this technical scheme utilizes running gear to realize the function to the bearing box removal, and then makes the removal that the bearing box can be free on the ground beside the bridge expansion joint.
The technical effect of automatic spreading of waterproofing membrane is realized to the mechanism that spreads of this scheme utilization. The user twines the waterproof membrane on the shop's material roller, because shop's material roller rotates to be connected in the bearing box, consequently along with shop's material roller rotates, can continuously provide and outwards extend and provide the waterproof membrane. The one end at the expansion joint only needs to be fixed with the head end of water proof membrane to the user of service, and along with the removal of bearing box along the expansion joint direction, the water proof membrane can continuously cover fixedly along the expansion joint extending direction, reaches the purpose of covering the slot in the middle of the expansion joint
This scheme utilization wiper mechanism realizes the washing to the inside steel bar structure of expansion joint. Because the cleaning roller is located the below of bearing box, consequently the cleaning roller can stretch into the inside at expansion joint to with the inside reinforcing bar contact in expansion joint, and then realize the technological effect of cleaning the operation. Along with the removal of bearing box along the expansion joint direction, the cleaning roll can continuously wash the inside at expansion joint along the expansion joint extending direction.
When the bearing box moves to one end of the expansion joint, the cleaning roller below the bearing box can abut against the side wall of the expansion joint, and along with the fact that the bearing box continues to move forwards, the cleaning roller can rotate in the circumferential direction with the bearing box through the supporting rod under the acting force of the side wall of the expansion joint until the cleaning roller rotates to be flush with the top end of the expansion joint, and then the technical effect that the cleaning roller moves out of the expansion joint is achieved.
And can also realize the transmission function to the cutting knife through drive mechanism at the cleaning roller pivoted in-process, and then make the cutting knife can carry out downstream along vertical direction. Because the cutting knife is located the ejection of compact direction top of spreading the material roller, consequently along with the cutting knife downstream, and then realize the automatic cutout of waterproof film on the roller of spreading the material, realize the technical effect of automatic cutout waterproof film after laying the waterproof film that finishes.
Compare in prior art, this technical scheme bears the removal of case and realizes simultaneously covering the slot at expansion joint and two functions to the expansion joint inside cleanness. Effectively practice thrift the human cost, shorten the engineering time, improve the process of bridge expansion joint restoration construction. And this technical scheme can also realize the automatic cutting to the water proof membrane after accomplishing the expansion joint cleanness, realizes the automated processing of relevant step, effectively improves the efficiency of construction.
Furthermore, the transmission mechanism comprises a first gear and a second gear, the first gear is coaxially and fixedly connected with one end, far away from the spreading roller, of the supporting rod, the second gear is meshed with the first gear, a rack is arranged on one side of the cutting knife, and the rack is meshed with the second gear.
Has the advantages that: this technical scheme supports to drive first gear at the cleaning roller and rotates by expansion joint lateral wall pivoted in-process, and first gear rotates and then drives the rotation of second gear to realize the purpose of conversion rotation direction. The second gear rotates and then drives the vertical removal of rack on the cutting knife, and then realizes having circumferential direction to turn into the purpose of vertical removal to finally realize the technical effect of the vertical downstream of cutting knife.
Further, the inner wall of the bearing box is fixedly connected with a guide box, the inner wall of the guide box is provided with a guide groove, and the rack is vertically connected in the guide groove in a sliding manner.
Has the advantages that: this technical scheme is through seting up guide box and guide way to the realization is to the guide effect of rack, ensures that the rack carries out downstream along vertical direction, avoids the cutting knife to take place the skew.
Further, the first gear and the second gear are both straight gears.
Has the advantages that: this technical scheme is used and is adopted the spur gear to carry out the meshing in order to improve the transmission efficiency of gear.
Further, drive mechanism includes the carousel, the coaxial fixed connection of carousel is in the bracing piece and is kept away from the one end of spreading the material roller, it has the connecting rod to articulate on the carousel, the one end that the carousel was kept away from to the connecting rod articulates in the cutting knife.
Has the advantages that: this technical scheme utilizes the articulated relation between carousel, connecting rod and the cutting knife to constitute a slider-crank mechanism, drives the carousel at the cleaning roller pivoted in-process and rotates, and the vertical downstream of cutting knife is driven through the connecting rod to carousel pivoted in-process, finally realizes the vertical downstream's of cutting knife technical effect of water proof membrane.
Furthermore, the support rod can freely stretch out and draw back along the self axial direction, the inside coaxial fixed connection of support rod can make the pressure spring that the support rod axial is freely stretched out and drawn back.
Has the advantages that: this technical scheme utilizes the pressure spring and then realizes the free flexible function of bracing piece to realize can receive the extrusion and contract when the cleaning roller meets lower reinforcing bar barrier at the in-process of marcing, avoid the cleaning roller to receive the condition emergence that lower barrier obstructs unable advancing.
Furthermore, a charging box is welded and fixed on the inner wall of the bearing box, the spreading roller is rotatably connected to the inner wall of the charging box, and a discharging hole is formed in the side wall of the charging box.
Has the advantages that: this technical scheme is through add the charging box in the bearing box inside to user of service can replace the water proof membrane on the stone roller conveniently, also play the effect of storing the protection to the water proof membrane simultaneously.
Further, a material guide plate is fixedly welded on one side, close to the discharge port, of the bottom of the charging box.
Has the advantages that: this technical scheme is through add the effect of stock guide in order to realize the direction guide to the water proof membrane is spread at the charging box bottom.
Furthermore, the top of the charging box is provided with an opening, and the top of the charging box is hinged with a blocking cover for blocking the opening.
Has the advantages that: this technical scheme is through add opening and apron at the charging box top to the user of service changes the stone roller.
The second objective of the present invention is to provide a method for repairing a bridge expansion joint, which comprises the following steps:
s1, lancing, namely performing lancing treatment on the damaged expansion joint structure to be repaired until the steel bar structure in the expansion joint is exposed outside;
s2, repairing, namely replacing or welding and reinforcing the damaged reinforcing steel bars;
s3, cleaning and paving a membrane, placing the bridge expansion joint repairing device on the expansion joint for moving, and covering the bridge expansion joint with a waterproof membrane by using the bridge expansion joint repairing device;
s4, pouring concrete, namely pouring the concrete into the expansion joint, and vibrating the concrete in the expansion joint;
and S5, maintaining, and standing the poured expansion joint for not less than 7 days.
Drawings
Fig. 1 is a side sectional view of a bridge expansion joint restoration device according to an embodiment of the present invention in a working state;
fig. 2 is a front view of a bridge expansion joint repairing apparatus according to an embodiment of the present invention;
fig. 3 is a side sectional view of a bridge expansion joint repair device according to a second embodiment of the present invention;
fig. 4 is a side sectional view of the bridge expansion joint restoration device according to the third embodiment of the present invention in a working state.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a bearing box 1, a traveling wheel 2, a crawler 3, a base 4, a first mechanical arm 5, a second mechanical arm 6, a mechanical claw 7, a first cylinder 8, a second cylinder 9, a third cylinder 10, a first straight gear 11, a second straight gear 12, a cleaning roller 13, a support rod 14, a guide box 15, a transmission bar 16, a spreading roller 17, a material guide plate 18, a cover plate 19, a waterproof membrane 20, a cutting knife 21, a rack 22, an expansion joint 23, a rotary table 24, a connecting rod 25, a tire 26, a hydraulic telescopic cylinder 27 and a rubber pipe 28.
Example one
Substantially as shown in figures 1 and 2: a bridge expansion joint repairing device and a repairing method thereof comprise a frame, wherein a bearing box 1 is fixedly welded on the frame. The relative both sides of bearing box 1 are equipped with running gear respectively, and running gear includes four travelling wheel 2, and travelling wheel 2 rotates respectively to be connected at the lateral wall of bearing box 1, and the outside cooperation of four travelling wheel 2 has a track 3, and bearing box 1 internal thread is fixed with and is used for driving the driving motor that travelling wheel 2 rotated.
The top of bearing box 1 is equipped with fixture, and fixture includes base 4, and the top of base 4 is rotated and is connected with first arm 5, and the bolt fastening has the first cylinder 8 that is used for driving first arm 5 pivoted on the base 4. One end of the first mechanical arm 5, which is far away from the base 4, is rotatably connected with a second mechanical arm 6, and a second cylinder 9 for driving the second mechanical arm 6 to rotate is fixed on the first mechanical arm 5 through a bolt. And a gripper 7 is arranged at one end of the second mechanical arm 6, which is far away from the first mechanical arm 5, and a third cylinder 10 for driving the gripper 7 to clamp is fixed on the second mechanical arm 6 through a bolt.
The inner wall of the bearing box 1 is rotatably connected with a first straight gear 11, the first straight gear 11 is coaxially connected with a key and is fixed with a first pin shaft, the first pin shaft is coaxially connected with a supporting rod 14, and the supporting rod 14 can freely stretch out and draw back along the axial direction. A pressure spring which can enable the support rod 14 to freely stretch and retract in the axial direction is coaxially arranged in the support rod 14. The bottom of the carrying case 1 is provided with a notch, and one end of the supporting rod 14 far away from the first straight gear 11 extends below the carrying case 1. And a second pin shaft is fixedly connected with one end of the support rod 14, which is far away from the first straight gear 11, through a coaxial key, and a cleaning roller 13 is fixedly connected with the second pin shaft through a coaxial key. The cleaning roller 13 is coaxially and fixedly connected with a servo motor, and the servo motor is used for driving the cleaning roller 13 to rotate. The bearing box 1 is provided with a moving space for the supporting rod 14 to rotate circumferentially by taking the top end as a circle center.
The inner wall of the bearing box 1 is rotatably connected with a second straight gear 12, and the second straight gear 12 is meshed with one side of the adjacent first straight gear 11. The inner wall of the bearing box 1 is further fixed with a guide box 15 in a threaded manner, a guide groove is vertically formed in the guide box 15, a transmission bar 16 is connected in the guide groove in a sliding manner, a rack 22 is formed on the right side of the transmission bar 16, and the rack 22 is meshed with the left side of the first straight gear 11. The bottom end of the transmission strip 16 is fixedly welded with a cutting knife 21, and the cutting edge of the cutting knife 21 faces to the right lower side.
A spreading mechanism is also arranged in the bearing box 1. The spreading mechanism comprises a charging box which is welded and fixed on the inner wall of the bearing box 1. The top of the charging box is provided with an opening, and the top of the charging box is hinged with a blocking cover for blocking the opening. The charging box is connected with a material spreading roller 17 in a rotating way, and a waterproof film 20 is wound on the material spreading roller 17. A discharge hole for discharging the waterproof membrane 20 is formed in the left side of the charging box, and a material guide plate 18 is fixedly welded on one side of the bottom of the charging box, which is close to the discharge hole.
A bridge expansion joint repairing method utilizes the bridge expansion joint repairing device, and comprises the following steps:
s1, lancing, namely performing lancing treatment on the damaged expansion joint structure to be repaired until the steel bar structure in the expansion joint is exposed outside;
s2, repairing, namely replacing or welding and reinforcing the damaged reinforcing steel bars;
s3, cleaning and paving a membrane, placing the bridge expansion joint repairing device on the expansion joint for moving, and covering the bridge expansion joint with a waterproof membrane by using the bridge expansion joint repairing device;
s4, pouring concrete, namely pouring the concrete into the expansion joint, and vibrating the concrete in the expansion joint;
and S5, maintaining, and standing the poured expansion joint for not less than 7 days.
The concrete implementation mode of the bridge expansion joint repairing device is as follows: in the process of using the bridge expansion joint restoration device, firstly, a user places the bridge expansion joint 23 restoration auxiliary device right above one end of the expansion joint 23, and places the cleaning roller inside the expansion joint 23. The operator then pulls the waterproof membrane 20 out of the discharge port of the charging box and fixes the end of the waterproof membrane 20 to the top end of the expansion joint 23. Then, the operator starts the driving motor, as shown in fig. 1, the traveling wheel 2 drives the track 3 to rotate under the action of the driving motor, and the carrying box 1 moves from left to right. And simultaneously, the servo motor is started, thereby realizing the high-speed rotation of the cleaning roller 13.
In the moving process of the bearing box 1, an operator controls the movement of the first mechanical arm 5, the second mechanical arm 6 and the mechanical claw 7 through the first cylinder 8, the second cylinder 9 and the third cylinder 10, so that the effect of clamping a large foreign body in the expansion joint 23 by using the mechanical claw 7 is achieved.
In the process that bearing box 1 removed, cleaning roller 13 is to the inside reinforcing bar contact of expansion joint 23, and then realizes the inside cleaning operation of expansion joint 23. As the carrier case 1 moves horizontally rightward, the cleaning roller 13 can continuously clean the inside of the expansion joint 23. When the cleaning roller 13 encounters a barrier with lower steel bars in the advancing process, the cleaning roller can be extruded and contracted so as to pass through the barrier, and the condition that the cleaning roller 13 cannot advance due to the barrier with lower steel bars is avoided. After the barrier, the support rod 14 is reset under the action of the compression spring, and the inside of the expansion joint 23 is further cleaned.
Finally, when the bearing box 1 moves to the end of the expansion joint 23, the cleaning roller 13 below the bearing box 1 abuts against the side wall of the expansion joint 23, and along with the continuous forward movement of the bearing box 1, the cleaning roller 13 and the bearing box 1 rotate in the circumferential direction through the support rod 14 under the acting force of the side wall of the expansion joint 23 until the cleaning roller 13 rotates to be level with the top end of the expansion joint 23, so that the cleaning roller 13 is separated from the expansion joint 23. In the process, the first straight gear 11 is driven to rotate, and the first straight gear 11 rotates to further drive the second straight gear 12 to rotate, so that the purpose of converting the rotating direction is achieved. The second spur gear 12 rotates to drive the upper rack 22 of the cutting knife 21 to move vertically downwards along the guide groove in the guide box 15, and then the cutting knife 21 moves vertically downwards. Along with the process of cutting knife 21 downstream, cutting knife 21 is adjusted the waterproof membrane 20 that the below extends and is cut off to reach and lay the technical effect who finishes automatic cutout waterproof membrane 20 behind the waterproof membrane 20.
Example two
The difference between the present embodiment and the first embodiment is that, as shown in fig. 3, the traveling mechanism includes four tires 26, the four tires 26 are respectively and rotatably connected to two opposite sidewalls of the carrying case 1, and a driving motor for driving the tires 26 to rotate is fixed in the carrying case 1.
The transmission mechanism comprises a rotary table 24, the rotary table 24 is coaxially connected and fixed at the top end of the supporting rod 14 in a key manner, a connecting rod 25 is hinged at the eccentric position of the side wall of the rotary table 24, and the left end of the connecting rod 25 is hinged on the transmission strip 16 at the top of the cutting knife 21.
The specific implementation process comprises the following steps: during the movement of the carrying case 1, the driving motor drives the tires 26 to rotate, thereby driving the carrying case 1 to advance.
Finally, when the bearing box 1 moves to the end of the expansion joint 23, the cleaning roller 13 below the bearing box 1 abuts against the side wall of the expansion joint 23, and along with the continuous forward movement of the bearing box 1, the cleaning roller 13 and the bearing box 1 rotate in the circumferential direction through the support rod 14 under the acting force of the side wall of the expansion joint 23 until the cleaning roller 13 rotates to be level with the top end of the expansion joint 23, so that the cleaning roller 13 is separated from the expansion joint 23. The turntable 24 is driven to rotate during the rotation of the support rod 14. Because the articulated relation between carousel 24, connecting rod 25 and the cutting knife 21 constitutes a slider-crank mechanism, consequently carousel 24 rotates and utilizes connecting rod 25 to drive the vertical downstream of cutting knife 21, and then makes the vertical downstream of cutting knife 21. As the cutter 21 moves downward, the cutter 21 cuts the waterproof film 20 extending downward.
EXAMPLE III
The difference between the first embodiment and the second embodiment is that, as shown in fig. 4, a hydraulic chamber is further opened inside the sliding support rod 14, and the hydraulic chamber is filled with pressure fluid. The free extension and retraction of the support rod 14 enables the volume of the hydraulic chamber to be freely varied. A hydraulic telescopic cylinder 27 is fixed on the left bolt of the cutting knife 21 of the bearing box 1. The telescopic end of the hydraulic telescopic cylinder 27 extends and retracts vertically towards the right lower side. The free end of the hydraulic telescopic cylinder 27 is fixed with a squeezing plate through threads.
A rubber tube 28 is communicated between the support rod 14 and the hydraulic telescopic cylinder 27, and the rubber tube 28 is communicated between a hydraulic cavity in the support rod 14 and the hydraulic telescopic cylinder 27.
The specific implementation process comprises the following steps: during the movement of the carrying case 1, the supporting rod 14 is vertically extended and contracted by continuously encountering the reinforcing steel bars inside the expansion joint 23. Every time the supporting rod 14 contracts, the hydraulic cavity inside the supporting rod 14 is extruded, and the extruded fracturing fluid enters the hydraulic telescopic cylinder 27 through the rubber pipe 28, so that the hydraulic telescopic cylinder 27 is ejected. The hydraulic telescopic cylinder 27 vertically and downwards ejects the extrusion plate, and finally the effect of extruding and laying the waterproof membrane 20 is achieved, so that the laid waterproof membrane 20 is more smooth.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several variations and modifications can be made, which should also be considered as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. The utility model provides a bridge expansion joint prosthetic devices, includes the bearing box, be equipped with running gear on the bearing box, its characterized in that:
the device also comprises a spreading mechanism and a cleaning mechanism;
the spreading mechanism comprises a spreading roller which is rotatably connected to the inner wall of the bearing box;
the cleaning mechanism comprises a supporting rod, one end of the supporting rod is rotatably connected to the side wall of the bearing box, a transmission mechanism is coaxially and rotatably connected with the rotating connection position of the supporting rod and the bearing box, a cutting knife is vertically and slidably connected inside the bearing box, and the cutting knife is positioned on one side close to the spreading roller;
the transmission mechanism comprises a first gear and a second gear, the first gear is coaxially and fixedly connected with one end of the supporting rod, which is far away from the spreading roller, the second gear is meshed with the first gear, one side of the cutting knife is provided with a rack, and the rack is meshed with the second gear;
the cutting knife is positioned above the discharging direction of the spreading roller; the other end of the supporting rod is provided with a cleaning roller; the cleaning roller is positioned below the bearing box.
2. The bridge expansion joint repair device of claim 1, wherein: the inner wall of the bearing box is fixedly connected with a guide box, the inner wall of the guide box is provided with a guide groove, and the rack is vertically and slidably connected in the guide groove.
3. The bridge expansion joint repair device of claim 2, wherein: the first gear and the second gear are both straight gears.
4. The bridge expansion joint repair device of claim 1, wherein: the transmission mechanism comprises a rotary table, the rotary table is coaxially and fixedly connected to one end, far away from the spreading roller, of the support rod, a connecting rod is hinged to the rotary table, and one end, far away from the rotary table, of the connecting rod is hinged to the cutting knife.
5. The bridge expansion joint repair device of claim 4, wherein: the supporting rod can freely stretch out and draw back along the self axial direction, the inside coaxial fixed connection of supporting rod can make the pressure spring that the supporting rod axial is freely stretched out and drawn back.
6. The bridge expansion joint repair device of claim 1, wherein: the loading box is fixedly welded on the inner wall of the bearing box, the material spreading roller is rotatably connected to the inner wall of the loading box, and a discharge hole is formed in the side wall of the loading box.
7. The bridge expansion joint repair device of claim 6, wherein: and a material guide plate is welded and fixed at one side of the bottom of the charging box, which is close to the discharge port.
8. The bridge expansion joint repair device of claim 7, wherein: the top of the charging box is provided with an opening, and the top of the charging box is hinged with a blocking cover for blocking the opening.
9. A bridge expansion joint repair method for use in the bridge expansion joint repair apparatus according to any one of claims 1 to 8, comprising the steps of:
s1, lancing, namely performing lancing treatment on the damaged expansion joint structure to be repaired until the steel bar structure in the expansion joint is exposed outside;
s2, repairing, namely replacing or welding and reinforcing the damaged reinforcing steel bars;
s3, cleaning and paving a membrane, placing the bridge expansion joint repairing device on the expansion joint for moving, and covering the bridge expansion joint with a waterproof membrane by using the bridge expansion joint repairing device;
s4, pouring concrete, namely pouring the concrete into the expansion joint, and vibrating the concrete in the expansion joint;
and S5, maintaining, and standing the poured expansion joint for not less than 7 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324448.3A CN114892544B (en) | 2022-03-29 | 2022-03-29 | Bridge expansion joint repairing device and repairing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210324448.3A CN114892544B (en) | 2022-03-29 | 2022-03-29 | Bridge expansion joint repairing device and repairing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114892544A true CN114892544A (en) | 2022-08-12 |
| CN114892544B CN114892544B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210324448.3A Active CN114892544B (en) | 2022-03-29 | 2022-03-29 | Bridge expansion joint repairing device and repairing method thereof |
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| CN (1) | CN114892544B (en) |
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| CN115323944A (en) * | 2022-09-06 | 2022-11-11 | 江西交通咨询有限公司 | Repair structure for expansion joint area of concrete bridge of highway and construction method |
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| CN114892544B (en) | 2023-10-20 |
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