CN108589558B - Viaduct outer wall facility maintenance support - Google Patents
Viaduct outer wall facility maintenance support Download PDFInfo
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- CN108589558B CN108589558B CN201810131959.7A CN201810131959A CN108589558B CN 108589558 B CN108589558 B CN 108589558B CN 201810131959 A CN201810131959 A CN 201810131959A CN 108589558 B CN108589558 B CN 108589558B
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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 belongs to the technical field of highway maintenance construction, and particularly relates to a viaduct outer wall facility maintenance support which comprises an aerial ladder part, a hanging mechanism and a traveling mechanism; the aerial ladder part is provided with a platform for a maintainer to stand; the lower end of the hanging mechanism is connected with the aerial ladder part and is used for hanging the aerial ladder part outside the viaduct guardrail; the travelling mechanism is installed on the hanging mechanism and is arranged opposite to the top surface of the viaduct guardrail, and is used for driving the maintenance support to travel along the viaduct guardrail. The maintenance support can walk along the viaduct guardrail, and skillfully arranges all the driving mechanisms at the positions which can be easily touched by the maintenance personnel, so that one maintenance personnel can finish a plurality of series of operations such as maintenance, support walking and the like, and the maintenance support does not need to return to the bridge floor for a plurality of times in the operation process, thereby greatly improving the maintenance and construction efficiency of the viaduct.
Description
Technical Field
The invention belongs to the technical field of highway maintenance construction, and particularly relates to a viaduct outer wall facility maintenance support.
Background
With the continuous improvement of the living standard of people, the number of automobiles is increased day by day, and the traditional ground transportation can not meet the daily traffic demand of people, so that the construction of viaduct roads is greatly developed in many large and medium-sized cities in recent years, and the increasingly heavy maintenance work of the viaduct follows. One of the difficulties in the maintenance of the overpass is the maintenance of facilities on the outer side wall of the bridge deck, such as wall lamps, drain pipes, etc., and the maintenance of joints of the bridge deck, etc. In the prior art, when the facility is maintained, a specially customized aerial ladder is clamped on the guardrail of the viaduct, and then constructors go down to the aerial ladder to perform various construction operations. The construction method has the following defects: most aerial ladders in the prior art can only be relatively fixed with overhead bridge guardrails, namely, a constructor needs to return to a bridge floor once after completing the maintenance of one facility and then descends onto the aerial ladders again for construction after readjusting the positions of the aerial ladders, and the working efficiency is extremely low. In addition, although some scaling ladders with walking wheels are arranged in the prior art, the scaling ladders can only realize walking action by pushing and pulling the scaling ladders on the bridge floor by other constructors, and the matching degree between the scaling ladders and the guardrails is poor, so that the scaling ladders are difficult to walk and the reliable fixation of the scaling ladders and the guardrails in the maintenance construction process is difficult to ensure.
Disclosure of Invention
The invention aims to provide a viaduct outer wall facility maintenance support which can effectively improve the efficiency of viaduct outer wall arrangement, maintenance and construction.
In order to achieve the purpose, the invention provides the following technical scheme: a viaduct outer wall facility maintenance support comprises an aerial ladder part, a hanging mechanism and a traveling mechanism; the aerial ladder part is provided with a platform for a maintainer to stand; the lower end of the hanging mechanism is connected with the aerial ladder part and is used for hanging the aerial ladder part outside the viaduct guardrail; the travelling mechanism is installed on the hanging mechanism and is arranged opposite to the top surface of the viaduct guardrail, and is used for driving the maintenance support to travel along the viaduct guardrail.
The running gear includes one section of activity track that arranges along overpass guardrail length direction to and constitute sliding fit's coaster along activity track's length and activity track, hang the mechanism and link to each other with the coaster through an elevating system, elevating system is assembled into: when the lifting mechanism extends along the vertical direction, the movable rail can be abutted against the top surface of the viaduct guardrail, and the hanging mechanism is separated from the top surface of the viaduct guardrail; when the lifting mechanism contracts in the vertical direction, the hanging mechanism can be abutted against the top surface of the overhead bridge guardrail, and the movable track is separated from the top surface of the overhead bridge guardrail; a pulley driving mechanism for driving the pulley to slide on the movable track is also arranged between the movable track and the pulley.
The lifting mechanism comprises two parallel connecting rods with equal length, two ends of the two connecting rods are respectively hinged with the pulley and the hanging mechanism, and the four connecting rods form a parallel four-connecting-rod mechanism together; and a lifting driving mechanism for driving the pulley and the hanging mechanism to relatively lift is arranged between the pulley and the hanging mechanism.
The lifting driving mechanism comprises a pull rod and a lever, one end of the pull rod is hinged to the pulley, the other end of the pull rod is hinged to the lever, one end of the lever is hinged to the hanging mechanism, the other end of the lever is held by a hand to pull the lever, the force arm of the part held by the hand on the lever is larger than that of the hinged point of the pull rod, and the part held by the hand on the lever can be easily touched by an overhaul worker on the scaling ladder.
The pulley driving mechanism comprises a movable pulley, a traction rope, a first winding drum and a second winding drum which are coaxially arranged, the movable pulley is rotatably arranged at one end of the movable track, the first bobbin and the second bobbin are rotatably arranged on the hanging mechanism, the hanging mechanism is provided with a translation driving hand wheel which is synchronously and rotatably connected with the first bobbin and the second bobbin, the number of the traction ropes is two, one end of one of the traction ropes is tied on the hanging mechanism, the traction rope sequentially rounds the movable pulley and the group of steering pulleys and then is wound on the first winding drum, one end of the other traction rope is tied on the movable rail at the end far away from the movable pulley, the traction rope is wound on the second winding drum after passing through a group of steering pulleys, the winding direction of the traction rope is opposite to that of the traction rope on the first winding drum, and the diameter of the first winding drum is twice that of the second winding drum.
The first winding reel and the second winding reel are arranged on one side, close to the aerial ladder portion, of the hanging mechanism, and the translation driving hand wheel connected with the first winding reel and the second winding reel is arranged at a position, which can be easily touched by a maintainer on the aerial ladder.
The aerial ladder part is arranged in an adjustable mode along the vertical direction relative to the hanging mechanism.
The lifting mechanism is provided with a vertical guide sleeve, the scaling ladder part is provided with a guide rod matched with the vertical guide sleeve, the guide rod is provided with a rack, the lifting mechanism is provided with a gear matched with the rack, the gear is synchronously and rotatably connected with a worm wheel, the worm wheel is in transmission fit with a worm, and the worm is connected with a lifting driving hand wheel.
The invention has the technical effects that: the maintenance support can walk along the viaduct guardrail, and skillfully arranges all the driving mechanisms at the positions which can be easily touched by the maintenance personnel, so that one maintenance personnel can finish a plurality of series of operations such as maintenance, support walking and the like, and the maintenance support does not need to return to the bridge floor for a plurality of times in the operation process, thereby greatly improving the maintenance and construction efficiency of the viaduct.
Drawings
Fig. 1 is a perspective view of a viaduct outer wall facility maintenance bracket according to an embodiment of the present invention in a use state;
fig. 2 is a front view of a viaduct outer wall facility maintenance bracket provided by an embodiment of the invention in a use state;
fig. 3 is a side view of an in-use state of a viaduct outer wall facility service rack provided by an embodiment of the invention;
fig. 4 is a schematic perspective view of an access support for viaduct outer wall facilities provided in an embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view of I of FIG. 4;
FIG. 6 is an enlarged partial schematic view of II of FIG. 4;
fig. 7 is a schematic transmission structure diagram of an aerial ladder part lifting driving mechanism provided by an embodiment of the invention;
fig. 8 is a schematic perspective view of a viaduct outer wall facility maintenance support in a changed state according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of a hanging mechanism and sled assembly provided by an embodiment of the present invention;
FIG. 10 is a front view of a hanging mechanism and sled assembly provided by an embodiment of the present invention.
Detailed Description
The invention takes the replacement and maintenance process of the viaduct wall lamp 101 as an example, and the invention is further explained by combining fig. 1 to fig. 10:
as shown in fig. 1, 2 and 3, an overhauled support of an outer wall lamp 101 of a viaduct comprises an aerial ladder part 300, a hanging mechanism 200 and a traveling mechanism; the aerial ladder portion 300 has a platform on which a service person stands; the hanging mechanism 200 can form limit fit with the viaduct guardrail 102, and the lower end of the hanging mechanism 200 is connected with the aerial ladder part 300 and used for hanging the aerial ladder part 300 on the outer side of the viaduct guardrail 102; the traveling mechanism is installed on the hanging mechanism 200 and is arranged opposite to the top surface of the viaduct guardrail 102, and is used for driving the maintenance support to travel along the viaduct guardrail 102. The maintenance support can not only travel along the viaduct guardrail 102, but also skillfully arrange all the driving mechanisms at the positions which can be easily touched by the maintenance personnel, so that one maintenance personnel can finish some series of operations such as maintenance, support traveling and the like, and does not need to return to the bridge floor 100 for multiple times in the operation process, thereby greatly improving the maintenance and construction efficiency of the viaduct.
As shown in fig. 4 to 10, the present invention provides a specific implementation manner of a traveling mechanism:
the running mechanism comprises a movable track 401 arranged along the length direction of the viaduct guardrail 102 and a trolley 400 in sliding fit with the movable track 401 along the length direction of the movable track 401, the hanging mechanism 200 is connected with the trolley 400 through a lifting mechanism, and the lifting mechanism is assembled as follows: when the lifting mechanism extends in the vertical direction, the movable rail 401 can be abutted against the top surface of the viaduct guardrail 102, and the hanging mechanism 200 can be separated from the top surface of the viaduct guardrail 102; when the lifting mechanism contracts in the vertical direction, the hanging mechanism 200 can be enabled to be abutted against the top surface of the viaduct guardrail 102, and the movable rail 401 can be enabled to be separated from the top surface of the viaduct guardrail 102; a pulley driving mechanism for driving the pulley 400 to slide on the movable track 401 is further arranged between the movable track 401 and the pulley 400. The principle of the invention is that a section of movable track 401 is introduced on the basis of the existing walking aerial ladder, the matching degree of the pulley 400 and the movable track 401 is higher, the walking resistance can be reduced to the maximum extent, the arrangement of a traction driving mechanism is convenient, the walking of the aerial ladder can be automatically controlled by people on the aerial ladder, the labor cost is reduced, and the construction efficiency is improved.
Aiming at the lifting mechanism, the invention provides the following specific implementation modes: the lifting mechanism comprises two parallel connecting rods 406 with equal length, two ends of the two connecting rods 406 are respectively hinged with the pulley 400 and the hanging mechanism 200, and the four connecting rods form a parallel four-bar mechanism; a lifting driving mechanism for driving the pulley 400 and the hanging mechanism 200 to relatively lift is arranged between the two.
Further, the lifting driving mechanism comprises a pull rod 204 and a lever 201, one end of the pull rod 204 is hinged to the pulley 400, the other end of the pull rod 204 is hinged to the lever 201, one end of the lever 201 is hinged to the hanging mechanism 200, the other end of the lever 201 is held by a hand to pull the lever 201, the force arm of the part held by the hand on the lever 201 is far larger than that of the hinged point of the pull rod 204, so that the labor-saving effect is achieved, the part held by the hand on the lever 201 is arranged at a position where a maintenance worker on the aerial ladder can easily touch the lever, and therefore the maintenance worker on the aerial ladder portion 300 can lift the lever conveniently. In addition, as shown in fig. 10, the hanging mechanism 200 is further provided with a stop pin 211, when the operator pulls the lever 201 to the station shown in fig. 10, the hinge point between the pull rod 204 and the lever 201 is biased to the right side of the hinge point of the lever 201 itself, and at this time, the pull force of the pull rod 204 can make the lever 201 abut against the stop pin 211, so that the hanging mechanism 200 cannot be lowered even if the operator releases the lever 201.
The movable rail 401 comprises a guide portion 4011 located on the upper layer and a support portion 4012 located on the lower layer, wherein one end of the guide portion 4011 and one end of the support portion 4012 are hinged to each other, and the other end of the guide portion 4011 is provided with a lifting mechanism for adjusting a relative included angle between the guide portion 4011 and the support portion 4012.
Preferably, the lifting mechanism is a scissor jack 404, a base of the scissor jack 404 is fixedly connected with the supporting portion 4012, a horizontal pin 407 is arranged on a top of the scissor jack 404, an axis of the pin 407 is arranged along the width direction of the movable rail 401, and the pin 407 and a horizontal waist-shaped hole 408 formed in the guiding portion 4011 form a sliding fit. The guide part 4011 comprises two channel steels with opposite notches, two ends of the two channel steels are welded and fixed through steel plates, rollers are arranged on two sides of the pulley 400, and the rollers are sunken into the channel steels on the two sides and form rolling fit with the channel steels; the end of the screw of the scissor jack 404 is provided with a ratchet wrench 405. When the movable rail 401 is on an uphill or downhill section, the ratchet wrench 405 on the scissor jack 404 can be turned to adjust the included angle between the guiding part 4011 and the supporting part 4012, so that the guiding part 4011 is in a horizontal posture to prevent the tackle 400 from slipping down the slope. When adjusting the scissor jack 404, the operator is typically positioned below the scissor jack 404, and the operator is assisted by using a ratchet wrench 405, which is removably connected to the scissor jack 404 to rotate the screw of the scissor jack 404 in a forward or reverse direction.
Further, a detaching opening 409 for allowing the roller of the pulley 400 to enter and exit is formed in one end, close to the lifting portion, of the top wall of the two channel steels of the guiding portion 4011, a limiting block 410 detachably connected with the channel steels is arranged below the detaching opening 409, the limiting block 410 is assembled such that when the limiting block 410 is installed on the channel steels, the limiting block 410 can prevent the roller from entering and exiting the detaching opening 409, and the limiting block 410 is arranged in a pin-shaped structure in this embodiment, as shown in fig. 5. The provision of the detachment port 409 facilitates the separation of the movable rail 401 from the trolley 400 for the transportation and storage of the apparatus.
Aiming at the pulley driving mechanism, the invention provides the following specific implementation modes:
the pulley driving mechanism comprises a movable pulley 402, a traction rope 403, and a first bobbin 2051 and a second bobbin 2052 which are coaxially arranged, the movable pulley 402 is rotatably arranged at one end of the movable rail 401, the first bobbin 2051 and the second bobbin 2052 are rotatably arranged on the hanging mechanism 200, the hanging mechanism 200 is provided with a translation driving handwheel 202 which is synchronously and rotatably connected with the first bobbin 2051 and the second bobbin 2052, the traction rope 403 is provided with two pieces, one end of one traction rope 403 is tied on the hanging mechanism 200, the traction rope 403 sequentially passes through the movable pulley 402 and a set of turning pulleys and then is wound on the first bobbin 2051, one end of the other traction rope 403 is tied at one end of the movable rail 401 which is far away from the movable pulley 402, the traction rope 403 passes through the set of turning pulleys and then is wound on the second bobbin 2052, and the winding direction of the traction rope 403 is opposite to the winding direction of the traction rope 403 on the first bobbin 2051, the first bobbin 2051 has a diameter twice that of the second bobbin 2052. Preferably, the first and second bobbins 2051, 2052 are disposed on the hanging mechanism 200 at a side close to the aerial ladder portion 300, and the translation driving handwheel 202 connected to the first and second bobbins 2051, 2052 is disposed at a position on the aerial ladder that can be easily touched by a service person.
In the pulley driving mechanism, the linear velocity of the traction rope 403 on the first bobbin 2051 is always twice the linear velocity of the traction rope 403 on the second bobbin 2052 due to the movable pulley 402, and therefore the bobbin diameter of the first bobbin 2051 is twice the bobbin diameter of the second bobbin 2052. When the hanging mechanism 200 is suspended and the movable rail 401 is used as a support, the first bobbin 2051 is used as a drive to translate the hanging mechanism 200, the load of the whole mechanism is large, the movable pulley 402 is used as a labor-saving structure, the load at the bobbin can be reduced, and the structural strength is ensured; when the movable rail 401 is suspended and the hanging mechanism 200 is used as a support, the second bobbin 2052 is used as a drive to translate the movable rail 401, the load of the whole mechanism is small at the moment, the structural strength of the bobbin cannot be affected even if the labor-saving effect is achieved by reducing the bobbin diameter of the second bobbin 2052, and the structure avoids using an additional movable pulley 402, so that the transmission structure of the equipment is simplified to the greatest extent.
Preferably, the hanging mechanism 200 includes an inverted U-shaped body, the inner sides of the two side walls of the body are provided with overhanging blocks 206 extending inwards, the overhanging blocks 206 are blocked with the top surface edges of the viaduct guardrail 102 to form a supporting structure of the hanging mechanism 200, and reinforcing ribs are provided between the overhanging blocks 206 and the side walls of the body. The lower ends of the overhanging blocks 206 are provided with convex ribs 207, and the convex ribs 207 at the lower ends of the two overhanging blocks 206 are respectively connected with the top ends of the two side walls of the viaduct guardrail 102 in a blocking manner, so that the hanging mechanism 200 is prevented from falling off from the guardrail 102 due to the action of external force.
The side wall of the body close to the inner side of the viaduct is provided with universal guide wheels 208, the universal guide wheels 208 and the inner side wall of the guardrail 102 of the viaduct form rolling fit, and a shock absorber 209 arranged in the vertical direction is arranged between the universal guide wheels 208 and the side wall of the body. The shock absorber 209 can ensure that the universal wheels are always attached to the inner wall of the viaduct guardrail 102.
Further, the aerial ladder portion 300 is vertically adjustable relative to the hanging mechanism 200, so that an operator can conveniently get on or off the aerial ladder portion 300.
Specifically, a vertical guide sleeve 210 is arranged on the hanging mechanism 200, a guide rod 301 matched with the vertical guide sleeve 210 is arranged on the aerial ladder part 300, a rack 307 is arranged on the guide rod 301, a gear 212 matched with the rack 307 is arranged on the hanging mechanism 200, the gear 212 is in synchronous rotating connection with a worm wheel, the worm wheel is in transmission fit with a worm 213, and a lifting driving hand wheel 203 is connected to the worm 213.
The aerial ladder portion 300 is rotatably disposed along a vertical axis with respect to the hanging mechanism 200, so that the aerial ladder portion 300 can be folded to the same side of the trolley 400, thereby facilitating storage and transportation.
Specifically, the lower end of a side wall of the hanging mechanism 200, which is close to the outer side of the viaduct guardrail 102, is connected with an installation block 302, a T-shaped groove with a downward opening is formed in the lower end of the installation block 302, a T-shaped block 303 is arranged in the T-shaped groove, the center of the T-shaped block 303 is rotatably connected with the T-shaped groove, protruding portions on two sides of the T-shaped block are in blocking connection with groove shoulders on two sides of the T-shaped groove, and the escalator portion 300 is fixedly connected with the T-shaped block 303. A gap is reserved between the bottom wall of the T-shaped groove and the top wall of the T-shaped block 303, the T-shaped block 303 is arranged in a reciprocating mode in the vertical direction relative to the T-shaped groove, and a pressure spring 304 is arranged between the top wall of the T-shaped groove 303 and the bottom wall of the T-shaped groove. The lower end faces of the protruding portions on the two sides of the T-shaped block 303 are provided with limiting convex blocks 306, the limiting convex blocks 306 and the lower end faces of the protruding portions are in smooth transition, and limiting grooves 305 matched with the limiting convex blocks 306 are arranged on groove shoulders on the two sides of the T-shaped groove. The weight of the aerial ladder part 300 is borne by the T-shaped block 303 and the T-shaped groove, so that the aerial ladder part 300 can rotate, and the whole bearing capacity of the aerial ladder part 300 is improved.
The invention also provides a viaduct outer wall lamp 101 overhauling method, which comprises the following steps:
step 1: the equipment enters a field, and the maintenance support is conveyed to the starting point position of the section to be maintained;
step 2: assembling equipment, namely assembling the movable track 401 and the hanging mechanism 200 together, arranging the traction rope 403 in place, and rotating the aerial ladder part 300 to the side opposite to the pulley 400;
and step 3: the maintenance support is hung on the viaduct guardrail 102, the hanging mechanism 200 is ensured to be abutted against the top surface of the viaduct guardrail 102, the movable rail 401 is separated from the top surface of the viaduct guardrail 102, and the pulley 400 is ensured to be positioned at one end, far away from the movable pulley 402, of the movable rail 401; a constructor descends into the aerial ladder part 300, and then shakes the lifting driving hand wheel 203 to enable the aerial ladder part 300 to descend to a height suitable for the constructor to carry out maintenance operation, and the wall lamp 101 starts to be maintained;
and 4, step 4: after the wall lamp 101 is overhauled, a constructor pulls the lever 201 to lift the hanging mechanism 200, and the movable rail 401 is abutted against the top surface of the viaduct guardrail 102; then the constructor shakes the translation driving handwheel 202 to make the pulley 400 move along the movable track 401 to the direction close to the movable pulley 402; when the aerial ladder part 300 moves to the position of the next wall lamp 101 to be overhauled, the pulley 400 stops moving, the lever 201 is pulled, the hanging mechanism 200 falls down, and the movable rail 401 is separated from the top surface of the viaduct guardrail 102 again; at the moment, the handwheel 202 is driven by reverse rotation and translation, so that the movable rail 401 translates towards the direction of the movable pulley 402 far away from the hanging mechanism 200 until one end of the movable rail 401 far away from the movable pulley 402 reaches the position of the hanging mechanism 200; then, carrying out a new round of wall lamp 101 maintenance work;
and 5: repeating the step 4 until all the wall lamps 101 in the section to be overhauled are overhauled; a constructor shakes the lifting driving hand wheel 203 to lift the aerial ladder part 300 and return to the bridge floor 100;
step 6: disassembling the equipment, namely taking down the whole overhaul bracket from the viaduct guardrail 102, then releasing the traction rope 403, separating the pulley 400 from the movable track 401 by utilizing a disassembly port 409 on a channel steel of the movable track 401, and rotating the aerial ladder part 300 to the same side of the pulley 400; and finally, loading and transporting the maintenance support, and finishing the maintenance work of the wall lamp 101 in the whole maintenance section.
In step 2, the specific assembling method of the maintenance support comprises the following steps: firstly, a limiting block 410 on a channel steel of a movable track 401 is dismantled, a pulley 400 is installed in the movable track 401 through a dismantling opening 409, and then the limiting block 410 is installed back in the channel steel; the aerial ladder part 300 and the T-shaped block 303 are pushed upwards for a certain distance, so that the limiting lug 306 is withdrawn from the limiting groove 305, then the aerial ladder is rotated by 180 degrees and then loosened, and the T-shaped block 303 is pressed against the groove shoulder of the T-shaped groove again under the elastic action of the pressure spring 304.
In step 4, before the constructor swings the translation driving handwheel 202, if the constructor finds that the movable rail 401 is located on an uphill or downhill section, the constructor can swing the ratchet wrench 405 on the scissor jack 404 to adjust the included angle between the guiding portion 4011 and the supporting portion 4012, so as to ensure that the guiding portion 4011 is in a horizontal posture.
The above description is intended to describe one or more specific embodiments of the invention and should not be taken as limiting the scope of the invention as claimed in any particular embodiment.
Claims (7)
1. The utility model provides a overpass outer wall facility overhauls support which characterized in that: comprises an aerial ladder part (300), a hanging mechanism (200) and a walking mechanism; the aerial ladder part (300) is provided with a platform for a maintainer to stand; the hanging mechanism (200) can form limit fit with the viaduct guardrail (102), and the lower end of the hanging mechanism (200) is connected with the aerial ladder part (300) and used for hanging the aerial ladder part (300) on the outer side of the viaduct guardrail (102); the travelling mechanism is arranged on the hanging mechanism (200), is opposite to the top surface of the viaduct guardrail (102), and is used for driving the maintenance support to travel along the viaduct guardrail (102); the running mechanism comprises a movable track (401) which is arranged along the length direction of the viaduct guardrail (102) and a trolley (400) which is in sliding fit with the movable track (401) along the length direction of the movable track (401), the hanging mechanism (200) is connected with the trolley (400) through a lifting mechanism, and the lifting mechanism is assembled as follows: when the lifting mechanism extends along the vertical direction, the movable track (401) can be abutted against the top surface of the viaduct guardrail (102), and the hanging mechanism (200) is separated from the top surface of the viaduct guardrail (102); when the lifting mechanism contracts in the vertical direction, the hanging mechanism (200) can be enabled to be abutted against the top surface of the viaduct guardrail (102), and the movable track (401) is enabled to be separated from the top surface of the viaduct guardrail (102); a pulley driving mechanism used for driving the pulley (400) to slide on the movable track (401) is further arranged between the movable track (401) and the pulley (400).
2. The overpass outer wall facility service rack of claim 1, wherein: the lifting mechanism comprises two parallel connecting rods (406) with equal length, two ends of the two connecting rods (406) are respectively hinged with the pulley (400) and the hanging mechanism (200), and the four connecting rods form a parallel four-bar mechanism together; and a lifting driving mechanism for driving the pulley (400) and the hanging mechanism (200) to relatively lift is arranged between the pulley and the hanging mechanism.
3. The overpass outer wall facility service rack of claim 2, wherein: the lift drive mechanism includes pull rod (204) and lever (201), the one end and coaster (400) of pull rod (204) are articulated, and the other end is articulated with lever (201), the one end and the mechanism of hanging (200) of lever (201) are articulated, and the other end of lever (201) supplies the staff to hold in order to pull this lever (201), the arm of force that supplies the position that the people held on lever (201) to be greater than the arm of force of pull rod (204) hinge point department, the position that supplies the people to hold on lever (201) is set up the position that the maintainer on the aerial ladder can touch easily.
4. The overpass outer wall facility service rack of claim 3, wherein: the pulley driving mechanism comprises a movable pulley (402), a traction rope (403), a first winding drum (2051) and a second winding drum (2052) which are coaxially arranged, the movable pulley (402) is rotatably arranged at one end of the movable rail (401), the first winding drum (2051) and the second winding drum (2052) are rotatably arranged on the hanging mechanism (200), a translation driving hand wheel (202) which is synchronously and rotatably connected with the first winding drum (2051) and the second winding drum (2052) is arranged on the hanging mechanism (200), the traction rope (403) is divided into two, one end of one traction rope (403) is tied on the hanging mechanism (200), the traction rope (403) sequentially bypasses the movable pulley (402) and a group of steering pulleys and then is wound on the first winding drum (2051), one end of the other traction rope (403) is tied on one end of the movable rail (401) far away from the movable pulley (402), and the traction rope (403) bypasses the group of steering pulleys and then is wound on the second winding drum (2052), and the winding direction of the traction rope (403) is opposite to that of the traction rope (403) on the first winding drum (2051), and the diameter of the first winding drum (2051) is twice that of the second winding drum (2052).
5. The overpass outer wall facility service rack of claim 4, wherein: the first winding drum (2051) and the second winding drum (2052) are arranged on one side, close to the aerial ladder part (300), of the hanging mechanism (200), and the translation driving hand wheel (202) connected with the first winding drum (2051) and the second winding drum (2052) is arranged at a position, which can be easily touched by a maintainer on the aerial ladder.
6. The overpass outer wall facility service rack of claim 5, wherein: the aerial ladder part (300) is arranged in an adjustable mode along the vertical direction relative to the hanging mechanism (200).
7. The overpass outer wall facility service rack of claim 6, wherein: the hanging mechanism (200) is provided with a vertical guide sleeve (210), the aerial ladder part (300) is provided with a guide rod (301) matched with the vertical guide sleeve (210), the guide rod (301) is provided with a rack (307), the hanging mechanism (200) is provided with a gear (212) matched with the rack (307), the gear (212) is connected with a worm wheel in a synchronous rotating mode, the worm wheel and a worm (213) form a transmission fit, and the worm (213) is connected with a lifting driving hand wheel (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810131959.7A CN108589558B (en) | 2018-02-09 | 2018-02-09 | Viaduct outer wall facility maintenance support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810131959.7A CN108589558B (en) | 2018-02-09 | 2018-02-09 | Viaduct outer wall facility maintenance support |
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| CN108589558A CN108589558A (en) | 2018-09-28 |
| CN108589558B true CN108589558B (en) | 2020-04-10 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100991190B1 (en) * | 2010-06-29 | 2010-11-02 | (주)수연중공업 | The bridge inspection and the repair method for which a circular travelling rail mobile bridge inspection car and this were used |
| CN202023158U (en) * | 2011-03-31 | 2011-11-02 | 武汉理工大学 | Movable maintenance device for bridge |
| CN204212070U (en) * | 2014-10-16 | 2015-03-18 | 武汉二航路桥特种工程有限责任公司 | Can the inspection platform of way moving under uninterrupted traffic condition |
| CN206418415U (en) * | 2016-12-30 | 2017-08-18 | 山西路桥建设集团有限公司 | A kind of bridge and facade wall maintenance device |
| CN107401125B (en) * | 2017-08-04 | 2022-12-09 | 苏交科集团股份有限公司 | Traveling device of mobile trolley and using method |
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2018
- 2018-02-09 CN CN201810131959.7A patent/CN108589558B/en active Active
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Effective date of registration: 20200316 Address after: No.51 Renmin Road, Jinxi Town, Taihu County, Anqing City, Anhui Province Applicant after: Anqing Zhongju Electromechanical Technology Co., Ltd Address before: 246620 Changqing Industrial Park, Yingjiang District, Anqing, Anhui Applicant before: ANHUI LANXI ENGINEERING TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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