WO2014015757A1 - 一种能避让桥侧障碍的吊架铰接式桥梁检修车 - Google Patents

一种能避让桥侧障碍的吊架铰接式桥梁检修车 Download PDF

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Publication number
WO2014015757A1
WO2014015757A1 PCT/CN2013/079533 CN2013079533W WO2014015757A1 WO 2014015757 A1 WO2014015757 A1 WO 2014015757A1 CN 2013079533 W CN2013079533 W CN 2013079533W WO 2014015757 A1 WO2014015757 A1 WO 2014015757A1
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WO
WIPO (PCT)
Prior art keywords
hanger
bridge
frame
longitudinal
longitudinal beam
Prior art date
Application number
PCT/CN2013/079533
Other languages
English (en)
French (fr)
Inventor
周剑波
陈明祥
高作平
陈幼康
Original Assignee
湖北武大珞珈工程结构检测咨询有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖北武大珞珈工程结构检测咨询有限公司 filed Critical 湖北武大珞珈工程结构检测咨询有限公司
Priority to EP13822293.0A priority Critical patent/EP2878731B1/en
Publication of WO2014015757A1 publication Critical patent/WO2014015757A1/zh
Priority to US14/602,053 priority patent/US9657448B2/en

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Classifications

    • 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
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
    • 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
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G2003/283—Mobile scaffolds; Scaffolds with mobile platforms mobile horizontally

Definitions

  • the present invention relates to a bridge detecting and repairing construction device, and particularly relates to a hoisting on a sidewalk on both sides of a bridge, which can provide a lifting point for the working platform for detecting and repairing the bottom surface of the bridge, and can avoid the obstacle on the bridge side.
  • Hanger articulated bridge inspection vehicle
  • the service vehicle includes a carriage book and a boom extending to the outside of the bridge, the carriage includes a frame chassis, the boom is a C-type hanger, and the frame chassis is longitudinally hinged and longitudinally
  • the shaft is hinged to the lower end of the pillar, and the upper end of the pillar is hinged to the protruding end of the upper beam of the C-shaped hanger via the horizontal axis hinge and the horizontal axis; or the frame chassis is passed through the universal joint or the ball joint and the C-shaped
  • the protruding end of the upper beam of the hanger is connected; or the frame chassis is hinged to the protruding end of the upper beam of the C-shaped hanger via the longitudinal axis hinge and the longitudinal axis, and the extension of the lower beam of the C-shaped hanger
  • At least one fixed point of the sling or a sling retracting device is provided at the outlet.
  • the pillar and the C-type hanger form an inverted G-shaped rigid frame in the plane, which can avoid the bridge side railing, can directly transmit the pulling force of the sling on the inspection platform to the bridge deck, has small overturning moment, light structure, convenient assembly and use. It can be installed on the sidewalks on both sides of the bridge, does not occupy the carriageway, and does not affect the traffic of the bridge deck when used. It is especially suitable for the inspection and maintenance of the underside of the bridge with heavy traffic. However, during the construction process, the maintenance vehicle often encounters the blocking of the cable or the street light poles on both sides of the bridge. At this time, it is necessary to consider two sets of carriages on the two sides of the bridge deck, that is, each of the bridges.
  • Two carriages are arranged on the side of each side, and the slings on the C-type hangers of the two carriages are alternately stressed.
  • the lifting points of the slings are changed to make the slings swing between the two C-frames to avoid the bridge.
  • Obstructions such as side cables or streetlights to achieve movement of the bottom platform of the bridge.
  • two additional inspection vehicles need to be newly assembled on both sides of the bridge deck, and the lifting points of the slings of the bridge bottom working platform should be frequently replaced to transition and avoid obstacles. It takes time and labor, and the construction cost is high. Inefficient and cumbersome. Lifting equipment is also needed when assembling the inspection vehicle on site, and it is necessary to temporarily occupy the traffic lane and affect traffic.
  • the object of the present invention is to overcome the defects and shortcomings of the existing crane articulated bridge detection vehicle avoiding obstacles, which are high in cost, low in efficiency, time-consuming and labor-intensive, and affecting the traffic on the bridge deck, and provide a simple structure.
  • Elevator articulated bridge inspection vehicle that is easy to use and can quickly avoid bridge side obstacles.
  • the utility model maintains the existing overhanging articulated bridge inspection vehicle with small overturning moment, light structure, convenient assembly and use, no advantage of lanes, and no need to add additional equipment during the avoidance obstacle, and does not affect the bridge surface traffic, and saves manpower. , material resources, avoid obstacles, and operate quickly. Especially suitable for the inspection of bridges with heavy traffic Testing and maintenance engineering.
  • a hanger articulated bridge inspection vehicle capable of avoiding bridge side obstacles, comprising a carriage and a boom extending to the outside of the bridge, the carriage comprising a frame chassis,
  • the boom is a C-type hanger
  • the frame chassis is hinged to a lower end of a pillar via a longitudinal hinge and a longitudinal axis, and at least one suspension is disposed on the protruding end of the lower beam of the C-shaped hanger a fixing point of the rope or a sling retracting device, wherein the upper end of the pillar is fixed with a frame longitudinal beam, and the upper end of the vertical rod of the C-shaped hanger is fixed with a hanger longitudinal beam, the hanger longitudinal beam and
  • the frame rails are movably connected by at least two beams.
  • the hanger longitudinal beam is spaced apart from the beam on the frame longitudinal beam, and the minimum distance between the adjacent two beams is greater than the length of the bridge side obstacle in the longitudinal direction of the bridge.
  • the corresponding spacing between the frame rail and the hanger rail is provided with a horizontal socket, and the beam is respectively provided with a shaft body that is slidingly engaged with the lateral socket.
  • the transverse beam of the hanger is provided with a horizontal socket hole corresponding to each of the beams, the beam is a retractable beam of two or more sections, and the fixing portion of the telescopic beam is fixed or hinged to the longitudinal direction of the frame.
  • a front end of the expansion and contraction portion of the beam is provided with a shaft body that is slidably engaged or screwed with the lateral socket on the hanger longitudinal beam.
  • the corresponding longitudinal hole of the frame longitudinal beam and/or the hanger longitudinal beam is provided with an axial movable stop device, and the axial movable stop device on the shaft body at both ends of the beam is provided with a positioning groove .
  • the axial movable stop device is a spring ball, and the positioning groove is a spherical pit or an annular groove disposed on the beam shaft corresponding to the spring ball.
  • the longitudinal axis or the longitudinal beam is disposed along the longitudinal direction of the chassis of the frame
  • the longitudinal direction of the frame chassis is along the span direction of the bridge
  • the horizontal axis or the beam is disposed along the lateral direction of the chassis of the frame.
  • the lateral direction of the chassis of the frame is the direction along the cross section of the bridge.
  • the upper beam of the C-type hanger refers to a section of the C-shaped hanger that is disposed laterally or in an arched shape
  • the lower beam of the C-type hanger refers to a section of the C-shaped hanger that is disposed laterally or in a downward arched shape.
  • the vertical rod of the C-type hanger refers to a vertical or side arched arc, and the upper and lower sides are The ends are connected to a section of the upper beam and the lower beam, respectively.
  • the upper cross beam, the lower cross member and the vertical rod are integrally connected to form a C-type hanger.
  • the beam described in the present invention corresponds to the upper beam in the C-type hanger.
  • the original chassis has a narrow width, light weight, light structure, convenient assembly and use, can be erected on the sidewalk, and can be The advantages of human implementation.
  • the upper beam is changed from a fixed type to a movable type of beam, thereby avoiding obstacles.
  • 3. Connect the frame longitudinal beam and the hanger longitudinal beam through multiple beams, and connect the pillars with the C-type hangers in peacetime. And an inverted G-shaped rigid frame is formed in the bridge section to avoid the bridge side railing, and the pulling force of the maintenance platform sling can be directly transmitted to the bridge deck.
  • the fixed end of the beam can be fixed by double pin.
  • a pin is pulled out and the obstacle is avoided by deflection, which is beneficial to reduce the telescopic section of the beam.
  • the invention has simple structure, convenient operation for avoiding obstacles, convenient construction, labor saving and time saving, no need to add additional equipment, no lane occupation, no influence on bridge deck traffic, good adaptability to bridges, and improved construction of maintenance vehicles. effectiveness.
  • FIG. 1 is a schematic view showing the construction structure of the original inspection vehicle.
  • FIG. 2 is a right side view of FIG. 1.
  • 3 is a schematic view showing the structure of the first structure of the original inspection vehicle using the universal joint 30 or the ball joint 31.
  • FIG. 4 is a left side view of FIG. 3.
  • FIG. 5 is a second schematic structural view of the original inspection vehicle.
  • FIG. 6 is a left side view of FIG. 5.
  • FIG. 7 is a schematic structural view of the present invention.
  • FIG. 8 is a first schematic structural view of a C-type hanger 25 in the present invention.
  • FIG. 9 is a schematic view showing the connection of the vertical rod of the C-type hanger 25 of FIG. 8 to the hanger stringer 42.
  • FIG. 10 is a schematic view showing the second structure of the C-type hanger 25 in the present invention.
  • FIG. 11 is a schematic view showing the third structure of the C-type hanger 25 in the present invention.
  • FIG. 1 there is a first structure of a hanger articulated bridge inspection vehicle, including a trolley and can be extended outside the bridge.
  • a side boom comprising a frame chassis 21 and a strut 23, the boom being a C-type hanger 25, the frame chassis 21 passing through the longitudinal axis hinge 22 and the longitudinal axis and the strut 23
  • the lower end is hinged, and the upper end of the strut 23 is hinged to the protruding end of the upper beam of the C-shaped hanger 25 via the horizontal axis hinge 24 and the horizontal axis, and at least the protruding end of the lower beam of the C-shaped hanger 25 is disposed.
  • the two trolleys are arranged on the sidewalks on both sides of the bridge deck, and the carriage comprises a frame chassis 21, and the frame chassis 21 is hinged along a longitudinal axis.
  • the pillar 23, the top of the pillar 23 is hinged with a C-shaped hanger 25 along a horizontal axis.
  • the upper beam of the C-shaped hanger 25 is outwardly picked out from the bridge deck and then extends downward from the vertical pole, extending to the bottom surface of the bridge 4 and then by the lower beam.
  • the inner side of the lower frame of the C-type hanger 25 is provided with a lifting point of the sling 26 for the under-bridge maintenance platform, and the hanging point of the C-type hanger is slinged with a sling 26 The lifting point connection of the 5th end of the inspection platform.
  • the chassis 21 has a width less than the sidewalk width, and the width of the carriage is narrow, and the carriage can avoid all obstacles when moving on the sidewalk.
  • the maximum width of the frame chassis 21 is such as to avoid all obstacles on the sidewalk.
  • the length of the undercarriage 21 can be arbitrarily set as needed to satisfy the maximum longitudinal overturning moment generated by the action of the strut 23, and it is preferable that the longitudinal length of the frame chassis 21 is 1 to 6 times the lateral width.
  • the framed chassis 21 has a vertical hinged hole in the width direction thereof, and the lower portion of the pillar 23 is correspondingly provided with a holed hinge, the longitudinal direction
  • the shaft hinge 22 is composed of a perforated hinge seat respectively disposed on the frame chassis 21 and the pillar 23, and the longitudinal shaft hinge 22 is provided with a longitudinal axis, that is, the longitudinal axis passes through the frame chassis 21 and the pillar 23
  • the upper perforated hinges form a hinge
  • the frame chassis 21 and the strut 23 are hinged via the longitudinal axis to enable the strut 23 to rotate about the longitudinal axis relative to the frame chassis 21.
  • the top of the pillar 23 is centered in the longitudinal direction of the chassis 21 with a holed hinge, the C-shaped hanger
  • the horizontal hinge 24 is composed of a perforated hinge which is respectively disposed on the pillar and the C-shaped hanger 25, and the horizontal hinge 24
  • the upper shaft is provided with a horizontal shaft to form a hinge, that is, the pillar 23 is hinged to the horizontal hinge of the C-shaped hanger 25 at the protruding end of the beam, so that the C-shaped hanger 25 can rotate relative to the pillar 23 about the horizontal axis. .
  • the horizontal axis hinged by the pillar 23 and the C-shaped hanger 25 is disposed at the top of the pillar 23 to facilitate assembly of the components on the site, but has a certain vertical anti-overturning requirement for the frame chassis 21, and the lower the horizontal height set by the horizontal axis, That is, the closer to the frame chassis 21, the more advantageous it is to resist the vertical tilting of the frame chassis 21.
  • the frame chassis 21 and the short column 32 of the C-type hanger 25 are equivalent to each other.
  • the universal joint 30 is connected, and the universal joint 30 can also be changed to the ball joint 31. That is, the frame chassis 21 is connected to the protruding end of the upper beam of the C-type hanger 25 via the universal joint 30 or the ball joint 31; the protruding end of the upper beam of the C-shaped hanger 25 projects downwardly with a short column 32.
  • the cross section of the short column 32 is an inverted cone with a large upper and a lower, or a wedge
  • the body, or a cylinder of equal section, the universal joint 30 is the same as the universal joint structure on the automobile transmission shaft, and the universal joint 30 is vertically placed to allow the horizontal plane to rotate in all directions, and only the vertical axis is constrained.
  • the lower end of the universal joint 30 is fixed to the frame chassis 21, and the upper end of the universal joint 30 is connected to the short post 32 of the C-shaped hanger 25 at the projecting end of the beam.
  • the ball joint 31 is composed of a lower seat, a spherical body and an upper seat.
  • the spherical body is disposed between the upper seat and the lower seat, and the upper seat and the lower seat are respectively combined with the frame chassis 21 and the C-type hanger. 25
  • the short posts 32 of the upper end of the upper beam are connected.
  • the frame chassis 21 has a quadrangular shape such as a rectangular shape, and four wheels 27 are disposed under the frame chassis 21, and the power of the frame chassis 21 is manually pushed, and a power device such as a power device may be disposed on the two wheels 27.
  • the motor and reducer are driven to form a power.
  • the pillar 23 is a member capable of withstanding bending. The height from the bottom of the frame chassis 21 to the top of the strut 23 is generally greater than the height of the railing outside the sidewalk.
  • the cross-section of the strut 23 is an inverted triangle that is large and small, and the longitudinal section of the strut 23 is a triangle that is large and small, and the chassis chassis 21 is A perforated hinge is disposed on a longitudinal center line and an angle below the cross section of the strut 23, and a corner above the longitudinal section of the strut 23 and a protruding end of the bottom surface of the beam on the C-shaped hanger 25 are respectively disposed.
  • There is a hole hinge and a space truss structure can be used to reduce weight.
  • the struts 23 can also be formed as a rectangular frame.
  • the C-type hanger 25 is a C-shaped member, and the upper and lower ends of the opening of the member can withstand a pair of pulling forces.
  • the upper cross member of the C-type hanger 25 is such that the vertical rod of the C-type hanger 25 can be hung outside the bridge deck 2.
  • the length of the vertical rod of the C-type hanger 25 is such that the lower cross member can extend below the bottom surface 4 of the bridge.
  • the length of the lower beam of the C-type hanger 25 is greater than or equal to the length of the upper beam.
  • the projecting end of the lower beam provides a lifting point and a fixing point for the sling 26 of the securing station 5.
  • the height of the vertical rod on the C-type hanger 25 is greater than the height of the top of the bridge side rail 20 to the bottom surface 4 of the bridge, so that the lower beam of the C-type hanger 25 extends below the bottom surface 4 of the bridge, the C
  • the length of the upper cross member of the type hanger 25 is greater than the width of the outer side of the bridge sidewalk to the outer side of the bridge side rail 20, so that the upper cross member of the C-type hanger 25 protrudes from the sidewalk above the bridge to the outer side of the bridge, the C-shaped hanger
  • the length of the lower beam of 25 is greater than or equal to the length of the beam on the C-shaped hanger 25, so that the lower beam of the C-shaped hanger 25 can extend from the outside to the inside of the cross section of the bridge below the bottom of the bridge, and has a certain lateral direction in the bridge.
  • the C-type hanger 25 is a member subjected to tension, bending and shearing, and the
  • the protruding end of the lower beam of the C-type hanger 25 is provided with two sling fixing points. Two slings 26 can be placed on the extended end of the lower beam of the C-type hanger 25 to be connected to the inspection platform 5 for added safety. It is also possible to provide a sling retracting device on the lower beam of the C-type hanger 25, and the sling retracting device is an electric hoist, such as fixing the electric hoist on the protruding end of the lower beam of the C-type hanger 25 Connect the steel rope on the electric hoist to the inspection platform 5, or connect the hook on the electric hoist to the steel rope fastened on the inspection platform 5. The operator turns on the electric hoist on the bridge deck or the inspection platform 5. Power supply, When the electric hoist is rotated, one end of the inspection table 5 can be lifted and lowered.
  • the second structure of the existing service vehicle is: the frame chassis 21 is hinged to the protruding end of the upper beam of the C-shaped hanger 25 via the longitudinal hinge 22 and the longitudinal axis. , that is, the pillar 23 is removed, and the bottom of the short column 32 of the protruding end of the beam on the C-type hanger 25 is directly hinged on the longitudinal axis of the frame chassis 21, which can also be understood as the abutment of the upper end of the pillar 23, and the pillar is 23 is integrated with the bottom of the protruding end of the beam of the C-type hanger 25, ⁇ , the protruding end of the upper beam of the C-shaped hanger 25 projects downwardly from a short column 32, the longitudinal center of the frame chassis 21 A perforated hinge is provided below the cross section of the line and stub 32.
  • the longitudinal hinge 22 is composed of a perforated hinge seat respectively disposed on the frame chassis 21 and the short post 32.
  • the longitudinal shaft hinge 22 is provided with a longitudinal axis, that is, the longitudinal axis passes through the frame.
  • the chassis 21 and the perforated hinge on the stub 32 form a hinge.
  • At least a fixed point of the sling 26 or a sling retracting device is disposed on the extended end of the lower beam of the C-type hanger 25.
  • the C-type hanger 25 in this configuration is rotatable about the longitudinal axis, so that the lower beam of the C-type hanger 25 extends below the bottom surface 4 of the bridge, and the lifting point is provided for the hoisting rope 26 to lift the inspection platform 5, but since no horizontal is provided
  • the angle at which the lower beam of the C-type hanger 25 is generated with respect to the upper beam and the longitudinal axis causes a certain amount of torque to deteriorate the force of the C-type hanger 25 and the frame chassis 21. Therefore, the structure is preferably used only for the maintenance of bridges without slope levels.
  • the framed chassis 21 has a vertical hinged hole in the width direction, and the lower portion of the short column 32 is also provided with a holed hinge.
  • the longitudinal hinge 22 is composed of a perforated hinge corresponding to the projecting end stub 32 of the cross member of the frame chassis 21 and the C-shaped hanger 25, and the longitudinal hinge 22 is provided with a longitudinal axis.
  • the operation method of using the service vehicle for bridge maintenance is as follows: For the first structure, two sets of frame chassis 21, pillars 23 and C-type hangers 25 are respectively transported to the sidewalks on both sides of the bridge, and are worn by the longitudinal axis.
  • the entry shaft hinge 22 stands on the frame chassis 21, and the horizontal shaft penetrates the horizontal shaft hinge 24 to fix the upper beam of the C-type hanger 25 to the pillar 23, and the lower beam is placed from the outside of the bridge.
  • the site is assembled into two sets of integrated vehicles.
  • two sets of frame chassis 21 and C-type hangers 25 with short columns 32 are respectively transported to the sidewalks on both sides of the bridge, so that the frame chassis 21 passes through the universal joint 30 or the ball joint 31 and the C-type hanger 25.
  • the short columns 32 at the projecting end of the beam are connected, and the lower beam of the C-shaped hanger 25 is placed from the outside of the bridge to the bottom of the bridge bottom 4, and two sets of integral carriages are assembled on site.
  • the steel rope is fastened at both ends of the inspection platform 5, and the lifting platform is synchronously lifted, the maintenance platform 5 is lifted to a suitable working height, and the two ends of the inspection platform 5 are respectively fixed to two by the sling 26 On the fixed point of the sling 26 on the lower beam of the C-type hanger 25, the sling 26 is fastened and fastened. If necessary, a protective rope can be added to fix the inspection platform 5 to prevent the swaying and swinging, and then the lifting steel wire on the hoisting equipment is removed. , the two ends of the inspection platform 5 are vertically suspended on the two C-type hangers 25.
  • the ladder is lowered on the side of the bridge, and the maintenance personnel can enter the inspection platform 5 from the ladder on the side of the bridge for maintenance or construction work.
  • the utility model is loosened on the sidewalk of the bridge deck 2 and inserted under each wheel 27
  • the wedges manually pushing the two carriages forward, can drive the inspection platform 5 to the new working surface, and then continue the inspection work.
  • a hanger articulated bridge inspection vehicle capable of avoiding bridge side obstacles, comprising a carriage and a boom extending to the outside of the bridge, the carriage
  • the frame chassis 21 is included, and the boom is a C-type hanger 25, and the frame chassis 21 is hinged to the lower end of a pillar 23 via a longitudinal hinge 22 and a longitudinal axis, and the C-shaped hanger 25 is under At least one fixing point of the sling 26 or a sling retracting device is disposed on the protruding end of the beam, and a frame longitudinal beam 44 is fixed to the upper end of the strut 23, and the upper end of the vertical rod of the C-shaped hanger 25 is fixed.
  • the hanger stringer 42 which is movably connected to the frame rail 44 by at least two beams 41.
  • the plurality of beams 41 integrally connect the hanger rails 42 and the frame rails 44.
  • the first beam 41 is connected to the hanger stringer 42 such as the first beam 41 from the corresponding lateral socket 43 on the side of the frame rail 44 toward the side of the frame rail 44. 44 and the hanger stringer 42 are allowed to leave a gap through the obstacle, and then continue to push the inspection vehicle to avoid the obstacle.
  • the normal operation of the station 5. Continuing to push the carriage forward and the transverse socket 43 of the first beam 41 is installed over the obstacle, the movable connection of the first beam 41 to the hanger stringer 42 is resumed, and then the first beam can be pressed. The step of avoiding the obstacle is performed by the second and subsequent beams 41 to avoid the obstacle.
  • the hanger stringers 42 are spaced apart from the beams 41 on the frame rails 44, and the minimum distance between the adjacent two beams 41 is greater than the length of the bridge side obstacles in the longitudinal direction of the bridge. To ensure the avoidance and alternation of more than two beams.
  • FIG. 7 FIG. 8, FIG. 9, the frame longitudinal beam 44 and the hanger stringer 42 are disposed at corresponding intervals with a lateral socket 43.
  • FIG. 9 the length direction of the hanger stringer 42 is shown.
  • the cross beams 41 in the transverse sockets 43 are connected, and the cross members 41 are respectively provided with shaft bodies which are slidably engaged with the lateral sockets 43.
  • the beam 41 is like a pole, one end penetrates into the lateral socket 43 on the frame rail 44, and the other end penetrates into the lateral socket 43 on the hanger stringer 42.
  • the pillar 23 and the C-type hanger 25 are integrally connected.
  • the beam 41 is prevented from coming out of the frame longitudinal beam 44 or the lateral socket 43 on the hanger stringer 42.
  • An axially movable stop device 46 is disposed on the corresponding longitudinal socket 43 of the frame rail 44 and/or the hanger rail 42.
  • the axially movable stop device 46 on the shaft body at both ends of the beam 41 is provided with a positioning slot. .
  • the structure of the axial movable stop device can be various.
  • the axial movable stop device is a spring ball, and the positioning groove is disposed on the beam 41 of the beam 41 corresponding to the spring ball as shown in FIG. 8 .
  • the lateral cavity 43 described in FIG. 9 is a quadrangular hole, which may be a square hole or a rectangular hole. Accordingly, the cross-section of the shaft body on the beam 41 that is slidably engaged with the lateral socket 43 is also correspondingly arranged in a square or rectangular shape.
  • This quadrilateral or polygonal hole design is particularly suitable for the case where only two beams 41 are provided between the hanger stringer 42 and the frame rail 44.
  • the beam 41 is disengaged from the lateral socket 43 of the hanger stringer 42. At this time, only one beam 41 is connected between the hanger stringer 42 and the frame rail 44.
  • This beam 41 Not only the gravity of the service table 5 below the C-type hanger 25 but also the connection position of the beam 41 is Deviation from the center of the C-type hanger 25 and the inspection table 5 in the longitudinal direction is also subject to the bending moment generated by the C-type hanger 25 or the inspection table 5.
  • the cooperation of the square or polygonal lateral socket 43 and the beam 41 of the corresponding section can overcome the torque generated by the bending moment and avoid the torsion of the beam 41.
  • the lateral socket 43 is a circular hole and the cross section of the beam 41 is circular, the lateral socket 43 is rotated about the beam 41, causing the C-shaped hanger 25 and the inspection table 5 to surround the beam. 41 deflection phenomenon.
  • three or more beams 41 are connected between the hanger rails 42 and the frame rails 44, two are connected between the hanger rails 42 and the frame rails 44 during the operation of avoiding obstacles.
  • the beam 41 above the root thus forms a two-point support on the frame rail 44.
  • the bending moment generated by the eccentricity of the C-type hanger 25 and the inspection platform 5 is borne by the frame longitudinal beam 44 itself, regardless of the lateral socket 43 and the cross-sectional shape of the beam 41 are circular or polygonal, and the phenomenon that a certain beam 41 rotates or the C-shaped hanger 25 and the inspection table 5 are deflected does not occur.
  • another structure of the present invention is such that the cross member 42 is provided with a lateral socket 43 corresponding to each of the beams 41, and the beam 41 is a retractable beam of two or more sections.
  • the fixing portion of the telescopic beam is fixed to the frame rail 44.
  • the front end of the telescopic portion of the beam 41 is provided with a shaft body that is slidably engaged with the lateral socket 43 of the hanger rail 42.
  • the minimum distance of the retractable portion of the beam 41 from the frame longitudinal beam 44 should be smaller than the minimum distance of the frame rail 44 from the lateral direction of the bridge to the obstacle on the bridge side, so as to prevent the expansion and contraction of the beam 41 when the obstacle is avoided. Blocked by obstacles.
  • the telescopic beam can adopt a structure like a crane arm, that is, the telescopic beam adopts a box beam structure, and a telescopic hydraulic cylinder is installed inside, and is mounted on the chassis 21 or A hydraulic system that communicates with each telescopic hydraulic cylinder is mounted on the frame rail 44 to ensure normal expansion and contraction of each telescopic beam.
  • a linear reciprocating mechanism such as a jack or a screw may be installed in the telescopic beam to make the beam 41 a retractable beam.
  • an internal thread may be disposed in the lateral socket 43 , and an external thread is provided at the front end of the beam expansion and contraction portion, and the front end of the beam expansion and contraction portion is rotated by the rotation of the screw, and The internal thread of the transverse socket 43 is engaged with each other.
  • a third structure of the present invention is a modification of the beam 41 of FIG. 10.
  • the fixing portion of the telescopic beam is hinged to the frame rail 44, and the front end of the telescopic portion of the beam 41 is disposed.
  • a fixing manner of two longitudinal pins 45 may be used at the fixed end of the upper beam 41, or a hinge pin may be attached to the fixed end of the hinge and the beam 41, and a bayonet may be mounted corresponding to the hinge and the beam 41. .
  • This structure is suitable for the number of sections of the beam 41 is small, and the remaining beam sections of the beam 41 are contracted after the telescopic end is too long, which is insufficient to avoid obstacles, and is advantageous for reducing the expansion and contraction sections of the beam.
  • the telescopic end of the beam 41 can be first withdrawn from the lateral socket 43 on the hanger stringer 42, and then a bolt 45 is removed.
  • the beam 41 swings upward or downward around the other pin 45, avoids the open lamp pole 3 in the width direction of the bridge deck, and then pushes the detection vehicle forward of the present invention, and causes the beam 41 to cross the lamppost 3 from the longitudinal direction of the bridge.
  • the beam 41 is laid flat and the unplugged pin 45 is reinserted, so that the telescopic end of the beam 41 is extended and inserted into the lateral socket 43 to complete a
  • the root beam 41 evades the operation of the street light bar 3, and the subsequent operation of the beam 41 to avoid the light pole 3 is sequentially performed, that is, the obstacle on the bridge side can be avoided by the bicycle without affecting the inspection work under the bridge. It can be seen that the process of the vehicle for avoiding obstacles is simple, safe and reliable, and can be carried out without interrupting the work of the maintenance platform 5 below the bridge deck, and the construction efficiency is high.

Abstract

一种能避让桥侧障碍的吊架铰接式桥梁检修车，包括架车和吊臂。架车包括车架底盘（21），吊臂为C型吊架（25），车架底盘（21）经纵轴铰（22）和纵轴与一支柱（23）的下端相铰接，C型吊架（25）下横梁的伸出端上至少设置有一个吊绳（26）的固定点或吊绳收放装置，该支柱（23）的上端固定有一根车架纵梁（44），C型吊架（25）的竖杆上端固定有一根吊架纵梁（42），吊架纵梁（42）与车架纵梁（44）通过至少两根横梁（41）活动连接成一体。该检修车结构简单，避让障碍物的操作简便，施工效率高。

Description

一种能避让桥侧障碍的吊架铰接式桥梁检修车
¾b ^领域
[0001] 本发明涉及一种桥梁检测与维修施工设备， 具体来说涉及一种架设在桥梁两侧人行 道上， 能为桥梁底面的检测与维修用工作平台提供吊点， 且能避让桥侧障碍的吊架铰接式桥 梁检修车。
背景技术
[0002] 为了给交通繁忙的桥梁底面检修说提供移动的作业平台， 本申请人于 2012年 4月 17 日向国家知识产权局提出了专利申请号为 2012101125274， 发明名称为 《一种吊架铰接式桥 梁检修车》， 参见图 1〜图 6。 该检修车包括架车书和可伸至桥梁外侧的吊臂， 所述的架车包括 车架底盘， 所述的吊臂为 C型吊架， 所述的车架底盘经纵轴铰和纵轴与一支柱的下端相铰 接， 所述支柱的上端经横轴铰和横轴与 C型吊架上横梁的伸出端相铰接； 或者， 车架底盘 经万向节或球铰与 C型吊架上横梁的伸出端相连接； 或者， 所述的车架底盘经纵轴铰和纵 轴与 C型吊架上横梁的伸出端相铰接， 所述 C型吊架下横梁的伸出端上至少设置有一个吊 绳的固定点或吊绳收放装置。 支柱与 C型吊架在平面内构成一倒 G型刚架， 能避开桥侧栏 杆， 能将检修台上吊绳的拉力直接传递到桥面， 倾覆力矩小， 结构轻巧， 组装和使用方便， 可架设在桥梁两侧人行道上， 不占用行车道， 使用时不影响桥面车辆通行， 特别适用于交通 繁忙的桥梁底面检测与维修工程。 但该检修车在施工过程中往往会遇到桥梁两侧的拉索或路 灯杆的阻挡， 这时， 则需考虑在桥面的两侧分别前后布置两组架车， 即在桥梁的每一侧边各 前后布置两台架车， 通过两台架车的 C型吊架上的吊绳交替受力， 更换吊绳的吊点使吊绳 在两 C型架间摆动过渡， 来避开桥梁侧面拉索或路灯杆等障碍， 以实现桥梁底部作业平台 的移动。 在以上的避让障碍过程中， 在桥面两侧需另行新组装两架检修车， 并要频繁更换桥 底作业平台吊绳的吊点以过渡和避让障碍物， 费工费时， 施工成本高、 效率低且比较麻烦。 现场组装检修车时还需要用到起吊装备， 要临时占用行车道， 影响交通。
发明内容
[0003] 本发明的目的是克服现有吊架铰接式桥梁检测车避让障碍所用设备多， 成本高， 效 率低， 费工费时， 且影响桥面交通的的缺陷和不足， 提供一种结构简单， 使用方便， 能快速 避让桥侧障碍的吊架铰接式桥梁检修车。 它保持了现有吊架铰接式桥梁检修车倾覆力矩小， 结构轻巧， 组装和使用方便， 不占车道的优点， 且在避让障碍过程中无需另行增加设备， 不 影响桥面交通， 且节省人力、 物力， 避让障碍操作快捷。 特别适用于交通繁忙的桥梁底面检 测与维修工程。
[0004] 本发明的技术解决方案是： 一种能避让桥侧障碍的吊架铰接式桥梁检修车， 包括架 车和可伸至桥梁外侧的吊臂， 所述的架车包括车架底盘， 所述的吊臂为 C型吊架， 所述的 车架底盘经纵轴铰和纵轴与一支柱的下端相铰接， 所述 C型吊架下横梁的伸出端上至少设 置有一个吊绳的固定点或吊绳收放装置， 所述支柱的上端固定有一根车架纵梁， 所述 C型 吊架的竖杆上端固定有一根吊架纵梁， 所述的吊架纵梁与所述的车架纵梁通过至少两根横梁 活动连接成一体。
[0005] 所述的吊架纵梁与车架纵梁上的横梁间隔排列， 相邻的两根横梁间的最小距离大于 桥侧障碍物在桥梁纵向上的长度。
[0006] 所述的车架纵梁和吊架纵梁上对应的间隔设置有横向窝孔， 所述的横梁上分别设置 有与所述横向窝孔滑动配合的轴体。
[0007] 所述的吊架纵梁上对应各横梁设置有横向窝孔， 所述的横梁为两节以上的可伸縮式 梁， 所述可伸縮式梁的固定部固定或铰接在车架纵梁上， 横梁的伸縮部前端上设置有与所述 吊架纵梁上横向窝孔滑动配合或螺纹连接的轴体。
[0008] 所述的车架纵梁和 /或吊架纵梁上对应横向窝孔设置有轴向活动止挡装置， 所述横梁 两端的轴体上对应轴向活动止挡装置设置有定位槽。
[0009] 所述的轴向活动止挡装置为弹簧撞珠， 所述的定位槽为对应弹簧撞珠设置在横梁轴 体上的球形凹坑或环形沟槽。
[0010] 所述的纵轴或纵梁沿车架底盘的纵向设置， 所述车架底盘的纵向即是沿桥梁的跨度 方向， 所述的横轴或横梁沿车架底盘的横向设置， 所述车架底盘的横向即是沿桥梁横截面的 方向。
[0011] 所述 C型吊架的上横梁是指 C型吊架上部横向或呈上拱弧形设置的一段构件， 所述
C型吊架的下横梁是指 C型吊架下部横向或呈下拱弧形设置的一段构件， 所述 C型吊架的 竖杆是指竖直或呈侧拱弧形设置， 且上下两端分别连接上横梁和下横梁的一段构件。 上横 梁、 下横梁和竖杆连接成一体， 构成 C型吊架。 本发明中所述的横梁即相当于 C型吊架中 的上横梁。
[0012] 与现有技术相比较， 本发明具有如下有益效果： 1， 保留了原有架车底盘宽度较窄， 重量较轻， 结构轻巧， 组装和使用方便， 能架设在人行道上， 并可由人力推行的优点。 2， 通过改进 C型吊架的上横梁， 由将上横梁由固定式改成活动式的横梁， 实现了对障碍物的 避让。 3， 通过多根横梁连接车架纵梁和吊架纵梁， 在平时能够使支柱与 C型吊架连成一体 并在桥梁断面内构成一倒 G型刚架， 从而避开桥侧栏杆， 能将检修平台吊绳的拉力直接传 递到桥面。 在遇到桥侧拉索或桥侧路灯杆等障碍物时， 能够实现交替接力承受和传递荷载， 保证其中一根横梁断开时， 其余的横梁仍保持连接， 保证了 C型吊架的工作性能。 能够在 车架的行进过程中， 通过脱开一根横梁与吊架纵梁的连接来实现对某一障碍物的避让， 避让 完成后再恢复该上横梁与与吊架纵梁的连接， 并依次重复进行下根一横梁对障碍物的避让过 程， 较好地解决了同一台检修车在施工过程中对桥侧障碍物的避让问题， 使用安全可靠。 4， 横梁采用伸縮式的构造， 同吊车臂， 技术成熟。 5， 横梁固定端可采用双插销的固定方 式， 当伸縮端与横向窝孔脱开后， 拔出一根插销， 用偏转方式避开障碍物， 有利于减少横梁 的伸縮节段。 6， 本发明结构简单， 避让障碍物的操作简便， 施工方便， 省工省时， 无需另 行增加设备， 不占用车道， 不影响桥面交通， 对桥梁的适应性好， 提高了检修车的施工效 率。
附图说明
[0013] 图 1是原检修车的施工结构示意图。
[0014] 图 2是图 1的右视图。
[0015] 图 3是原检修车第一种结构中采用万向节 30或球铰 31的结构示意图。
[0016] 图 4是图 3的左视图。
[0017] 图 5是原检修车的第二种结构示意图。
[0018] 图 6是图 5的左视图。
[0019] 图 7是本发明的结构示意图。
[0020] 图 8是本发明中 C型吊架 25的第一种结构示意图。
[0021] 图 9是图 8中 C型吊架 25的竖杆与吊架纵梁 42连接的示意图。
[0022] 图 10本发明中 C型吊架 25的第二种结构示意图。
[0023] 图 11本发明中 C型吊架 25的第三种结构示意图。
[0024] 图中： 桥墩 1， 桥面 2， 路灯杆 3， 桥梁底面 4， 检修台 5， 桥侧栏杆 20， 架车底盘 21， 纵轴铰 22， 支柱 23， 横轴铰 24， C型吊架 25， 吊绳 26， 车轮 27， 万向节 30， 球铰 31， 短柱 32， 横梁 41， 吊架纵梁 42, 横向窝孔 43， 车架纵梁 44， 插销 45， 轴向活动止挡 装置 46。
具体实施方式
[0025] 以下结合附图说明和具体实施方式对本发明作进一步的详细描述：
参见图 1， 图 2， 现有一种吊架铰接式桥梁检修车的第一种结构， 包括架车和可伸至桥梁外 侧的吊臂， 所述的架车包括车架底盘 21和支柱 23， 所述的吊臂为 C型吊架 25， 所述的车 架底盘 21经纵轴铰 22和纵轴与支柱 23的下端相铰接， 所述的支柱 23的上端经横轴铰 24 和横轴与 C型吊架 25上横梁的伸出端相铰接， 所述 C型吊架 25下横梁的伸出端上至少设 置有一个吊绳 26的固定点或吊绳收放装置。
[0026] 上述现有检修车工作时， 所述的架车应有两台， 分别布置在桥面两侧人行道上， 架 车包括车架底盘 21， 车架底盘 21上沿一纵轴铰接有支柱 23， 支柱 23顶部沿一横轴铰接有 一 C型吊架 25， C型吊架 25的上横梁向外挑出桥面后由竖杆向下延伸， 延伸到桥梁底面 4 后再由下横梁内挑至架车底盘 21的下方， C型吊架 25的下横梁伸出端为桥下检修平台提供 了吊绳 26的吊点， 所述 C型吊架的吊点上用吊绳 26与检修台 5—端的吊点连接。
[0027] 所述架车底盘 21宽度小于人行道宽， 架车宽度较窄， 架车在人行道上移动时能避开 所有障碍物。 所述车架底盘 21的最大宽度， 以能避开人行道上的所有障碍物为宜。 架车底 盘 21的长度可根据需要任意设定， 以能满足支柱 23作用产生的最大纵向倾覆力矩为宜， 最 好是使所述车架底盘 21的纵向长度是横向宽度的 1〜6倍。
[0028] 对于图 1， 图 2中的结构， 所述车架底盘 21的宽度方向上居中设纵轴的带孔铰座， 支柱 23的下部也对应设置有带孔铰座， 所述的纵轴铰 22由分别设置在车架底盘 21和支柱 23上的带孔铰座组成， 所述的纵轴铰 22上穿有纵轴， 即所述的纵轴穿过车架底盘 21和支 柱 23上的带孔铰座， 形成铰接， 车架底盘 21与支柱 23经纵轴相铰接， 使支柱 23相对车架 底盘 21能绕纵轴转动。 车架底盘 21与支柱 23铰接的纵轴离路面高度越小对车架底盘 21横 向抗倾覆越有利。
[0029] 所述支柱 23的顶部在架车底盘 21的长度方向上居中设有带孔铰座， 所述 C型吊架
25上横梁伸出端的底面上也对应设置有带孔铰座， 所述的横轴铰 24由分别设置在支柱和 C 型吊架 25上的带孔铰座组成， 所述的横轴铰 24上穿有横轴， 形成铰接， 即所述的支柱 23 经横轴与 C型吊架 25上横梁伸出端的带孔铰座相铰接， 使 C型吊架 25相对支柱 23能绕横 轴转动。 支柱 23与 C型吊架 25铰接的横轴设在支柱 23的顶部， 方便现场各构件的组装， 但对车架底盘 21有一定的纵向抗倾覆要求， 横轴设定的水平高度越低， 即越靠近车架底盘 21， 则对车架底盘 21纵向抗倾覆越有利。
[0030] 参见图 1， 图 3， 图 4， 当纵轴 22与横轴 24均设置在车架底盘 21上时， 车架底盘 21与 C型吊架 25的短柱 32之间相当于用万向节 30连接， 万向节 30也可以改成球铰 31。 即， 车架底盘 21经万向节 30或球铰 31与 C型吊架 25上横梁的伸出端相连接； 所述 C型 吊架 25上横梁的伸出端向下伸出一短柱 32， 短柱 32的截面为上大下小的倒锥体， 或为楔 形体， 或为等截面的柱体， 所述的万向节 30与汽车传动轴上的万向节结构相同， 所述的万 向节 30竖向安放， 允许水平面各方向转动， 只约束竖轴的转动， 万向节 30的下端固定在车 架底盘 21上， 万向节 30的上端与 C型吊架 25上横梁伸出端的短柱 32相连接。 所述球铰 31由下承座、 球状体和上承座组成， 球状体设置在上承座和下承座之间， 上承座和下承座 分别与车架底盘 21和 C型吊架 25上横梁伸出端的短柱 32相连接。
[0031] 所述的车架底盘 21为四边形如矩形， 车架底盘 21的下方设置有四个车轮 27， 车架 底盘 21的动力为人力推动， 也可以在两个车轮 27上设置动力装置如电机及减速机， 以形成 动力驱动。 支柱 23为一能承受压弯的构件。 所述车架底盘 21底部至支柱 23顶部的高度一 般大于人行道外侧栏杆高度。
[0032] 为使支柱 23的受力合理， 所述支柱 23的横截面为上大下小的倒三角形， 所述支柱 23的纵截面为下大上小的三角形， 所述车架底盘 21的纵向中心线上和支柱 23横截面下方 的一个角上均设置有带孔铰座， 所述支柱 23纵截面上方的一个角上和 C型吊架 25上横梁 底面的伸出端上均分别设置有带孔铰座， 并可采用空间桁架结构减轻重量。 所述的支柱 23 也可以做成矩形框架。
[0033] 所述的 C型吊架 25为一 C型构件， 该构件开口的上下两端点能够承受一对拉力的作 用。 C型吊架 25的上横梁以使 C型吊架 25上竖杆能悬挂在桥面 2外边为宜。 C型吊架 25 的竖杆长度以使下横梁能伸进桥梁底面 4下方为宜。 C型吊架 25的下横梁长度大于或等于 上横梁的长度。 下横梁的伸出端为系固检修台 5的吊绳 26提供吊点和固定点。
[0034] 所述 C型吊架 25上竖杆的高度大于桥侧栏杆 20顶部至桥梁底面 4的高度， 以方便 C型吊架 25的下横梁伸入至桥梁底面 4的下方， 所述 C型吊架 25上横梁的长度大于桥梁人 行道中心至桥侧栏杆 20外侧的宽度， 以便于 C型吊架 25的上横梁从桥梁上面的人行道向 桥梁外侧边伸出， 所述 C型吊架 25下横梁的长度大于或等于 C型吊架 25上横梁的长度， 这样 C型吊架 25的下横梁可以在桥梁底面下方从桥梁横截面的外侧向内侧伸进， 并在桥梁 的横向有一定的摆动和伸縮的余地。 所述的 C型吊架 25是一受拉、 弯、 剪作用的构件， 所 述的 C型吊架 25为箱板型构件或桁架构件。
[0035] 所述 C型吊架 25下横梁的伸出端设置有 2个吊绳固定点。 即可在 C型吊架 25下横 梁的伸出端上设置两根吊绳 26与检修台 5相连接， 以增加安全性。 还可以在所述 C型吊架 25下横梁上设置吊绳收放装置， 所述的吊绳收放装置为电动葫芦， 如将电动葫芦固定在 C 型吊架 25下横梁的伸出端上， 将电动葫芦上的钢绳与检修台 5相连接， 或将电动葫芦上的 吊钩与检修台 5上系固的钢绳相连接， 操作人员在桥面或检修台 5上接通电动葫芦的电源， 操作电动葫芦转动， 可带动检修台 5的一端进行升降。
[0036] 参见图 5， 图 6， 现有检修车的第二种结构是： 所述的车架底盘 21经纵轴铰 22和纵 轴与 C型吊架 25上横梁的伸出端相铰接， 即取消支柱 23， C型吊架 25上横梁伸出端的短 柱 32底部直接铰接在车架底盘 21的纵轴上， 也可以理解为是取消支柱 23上端的带孔铰 座， 并将支柱 23与 C型吊架 25上横梁伸出端的底部连成一体， δΡ， 所述 C型吊架 25上横 梁的伸出端向下伸出一短柱 32， 所述车架底盘 21的纵向中心线上和短柱 32横截面的下方 均设置有带孔铰座。 所述的纵轴铰 22由分别设置在车架底盘 21和短柱 32上的带孔铰座组 成， 所述的纵轴铰 22上穿有纵轴， 即所述的纵轴穿过车架底盘 21和短柱 32上的带孔铰座 形成铰接。 所述 C型吊架 25下横梁的伸出端上至少设置有一个吊绳 26的固定点或吊绳收 放装置。 这种结构中的 C型吊架 25可以绕纵轴转动， 使 C型吊架 25的下横梁伸入桥梁底 面 4下方， 为吊绳 26吊起检修台 5提供吊点， 但由于没有设置横轴铰 24， 当本结构的架车 位于拱形桥面的上坡段和下坡段时， 架车的重心方向与架车所处弧面所对应弦的垂直平分线 会形成一定的夹角， 即架车的重心方向是垂直于水平面的， 车架底盘 21上的纵轴与水平面 呈一定夹角， C型吊架 25与纵轴相垂直， 则与车架底盘 21的重心形成了一定夹角， 这时， C型吊架 25的下横梁相对于上横梁和纵轴会产生一定的扭矩， 使 C型吊架 25和车架底盘 21的受力恶化。 因此本结构最好仅用于无坡度水平桥梁的检修。
[0037] 对于现有检修车的第二种结构， 所述车架底盘 21的宽度方向上居中设纵轴的带孔铰 座， 短柱 32的下部也对应设置有带孔铰座， 所述的纵轴铰 22由对应设置在车架底盘 21和 C型吊架 25上横梁的伸出端短柱 32上的带孔铰座组成， 所述的纵轴铰 22上穿有纵轴。
[0038] 采用该检修车进行桥梁检修的作业方法如下： 对于第一种结构， 将两套车架底盘 21、 支柱 23和 C型吊架 25分别运至桥梁两侧人行道上， 用纵轴穿入纵轴铰 22将支柱 23 立在车架底盘 21上， 用横轴穿入横轴铰 24将 C型吊架 25的上横梁固定在支柱 23上， 并 将其下横梁从桥梁的外侧放至桥梁底面 4下方， 现场拼成两套整体架车。 或者， 将两套车架 底盘 21、 带短柱 32的 C型吊架 25分别运至桥梁两侧人行道上， 使车架底盘 21经万向节 30或球铰 31与 C型吊架 25上横梁伸出端的短柱 32相连接， 并将 C型吊架 25的下横梁从 桥梁的外侧放至桥梁底面 4下方， 现场拼成两套整体架车。
[0039] 对于第二种结构， 将两套车架底盘 21和 C型吊架 25分别运至桥梁两侧人行道上， 用纵轴穿入纵轴铰 22将 C型吊架 25的上横梁固定在车架底盘 21上， 并将其下横梁从桥梁 的外侧放至桥梁底面 4下方， 现场拼成两套整体架车。
[0040] 在以上的拼装过程中， 需要采取一定的吊装和支护措施， 以保证支柱 23或 C型吊架 25竖直， 而不会绕纵轴或万向节 30或球铰 31转动， 保证 C型吊架 25的上横梁与桥面 2基 本平行， 而不会绕纵轴或万向节 30或球铰 31向桥梁底面 4转动， 同时， 将车架底盘 21上 的各个车轮 27用楔块塞住， 以阻挡车轮 27转动， 防止溜车， 这样就为桥下组装好的检修台 5的起吊提供了两个固定的吊点。
[0041] 在检修台 5的两端系固钢绳， 利用卷扬设备同步起吊， 将检修台 5提升至适合的工 作高度， 再用吊绳 26将检修台 5的两端分别固定到两个 C型吊架 25下横梁上的吊绳 26固 定点上， 将吊绳 26扣紧锁牢， 需要时可加防护绳将检修台 5固定防止摇晃摆动， 再拆除卷 扬设备上的起吊钢绳， 使检修台 5的两端垂直吊挂在两个 C型吊架 25上。
[0042] 当检修台 5吊挂在两个 C型吊架 25上以后， 由于检修台 5的重力作用， 所述支柱 23 绕纵轴的转动和 C型吊架 25绕横轴的转动反而受到局限， 所述 C型吊架 25绕万向节 30节 或球铰 31或纵轴的转动也受到局限。 如同房内的人将一支钩子钩在房梁上一样， 人可以拉 着绳索向上攀登， 而钩子不会随意翻转角度或掉下。 这时可以拆除设置在支柱 23和 C型吊 架 25附近的吊装和支护措施， 让两台检修车投入使用。 该检修车为桥梁底面提供了一个安 全可靠的作业平台。 在桥梁侧边放下爬梯， 检修人员可从桥梁侧边的爬梯进入检修台 5， 进 行检修或施工作业， 当一个工作断面作业完成后， 在桥面 2的人行道上松开塞入各车轮 27 下方的楔块， 人工推动两台架车前行即可带动检修台 5至新的工作面， 再继续后面的检修工 作。
[0043] 但是该检修车用于检修侧面带拉索或装有路灯杆的桥梁时， 就会受到拉索或路灯杆 这些桥侧障碍物的阻碍， 这时需要在桥梁的两侧各前后布置两台架车， 桥梁同一侧两台架车 上的 C型吊架 25分别从不同拉索的空隙内伸出桥梁外侧， 将桥梁同一侧两台架车上的 C型 吊架 25下部的吊绳 26分别系固在检修台 5上相对应的同一端上， 通过两 C型吊架 25上吊 绳 26的交替受力来交替移动两 C型吊架 25及架车， 从而避开桥梁侧面拉索的阻挡。 虽然 该检修车在工作过程中不占用行车道， 但在现场组装检修车和两台架车前后交错时还需要用 到起吊装备， 要临时占用行车道， 影响交通。
[0044] 参见图 7， 图 8， 图 9， 本发明的一种能避让桥侧障碍的吊架铰接式桥梁检修车， 包 括架车和可伸至桥梁外侧的吊臂， 所述的架车包括车架底盘 21， 所述的吊臂为 C型吊架 25， 所述的车架底盘 21经纵轴铰 22和纵轴与一支柱 23的下端相铰接， 所述 C型吊架 25 下横梁的伸出端上至少设置有一个吊绳 26的固定点或吊绳收放装置， 所述支柱 23的上端固 定有一根车架纵梁 44， 所述 C型吊架 25的竖杆上端固定有一根吊架纵梁 42， 所述的吊架 纵梁 42与所述的车架纵梁 44通过至少两根横梁 41活动连接成一体。 [0045] 多根横梁 41将吊架纵梁 42和车架纵梁 44连成一体， 当遇到桥侧障碍如拉索或路灯 杆时， 可以在架车的行进方向上依次解除靠近障碍物的第一根横梁 41与吊架纵梁 42的连 接， 如从吊架纵梁 42上对应的横向窝孔 43中朝向架车纵梁 44一侧抽出第一根横梁 41， 使 第一根横梁 44与吊架纵梁 42之间留出可通过障碍物的空隙， 再继续推动检修车使第一根横 梁 41避让开障碍物。 这时， 吊架纵梁 42和车架纵梁 44之间至少还连接有第二根横梁 41， 可保证架车， 支柱 23和 C型吊架 25之间的正常连接和支撑， 并保证检修台 5的正常工 作。 继续推动架车前行并使安装第一根横梁 41的横向窝孔 43越过障碍物后， 再恢复第一根 横梁 41与吊架纵梁 42的活动连接， 然后， 便可按第一根横梁 41避让障碍物的步骤进行第 二根及后续横梁 41避让障碍物的操作。
[0046] 所述的吊架纵梁 42与车架纵梁 44上的横梁 41间隔排列， 相邻的两根横梁 41间的 最小距离大于桥侧障碍物在桥梁纵向上的长度。 以保证两根以上横梁的避让和交替。
[0047] 图 7， 图 8， 图 9中， 所述的车架纵梁 44和吊架纵梁 42上对应的间隔设置有横向窝 孔 43， 图 9中， 吊架纵梁 42的长度方向上均布有三个四边形的横向窝孔 43， 相应地在车架 纵梁 44上也对应均布有三个横向窝孔 43， 车架纵梁 44和吊架纵梁 42可通过安装在这三对 横向窝孔 43中的横梁 41相连接， 所述的横梁 41上分别设置有与横向窝孔 43滑动配合的轴 体。 在这一种结构中， 所述的横梁 41像一根扁担， 一端穿入车架纵梁 44上的横向窝孔 43 中， 另一端穿入吊架纵梁 42上的横向窝孔 43中， 并将支柱 23和 C型吊架 25连成一体。 为保证横梁与防止横梁 41车架纵梁 44或吊架纵梁 42的连接安全可靠， 避免横梁 41从车架 纵梁 44或吊架纵梁 42上的横向窝孔 43中脱出， 所述的车架纵梁 44和 /或吊架纵梁 42上对 应横向窝孔 43设置有轴向活动止挡装置 46， 所述横梁 41两端的轴体上对应轴向活动止挡 装置 46设置有定位槽。 所述轴向活动止挡装置的结构可以多样， 如所述的轴向活动止挡装 置为弹簧撞珠， 所述的定位槽为如图 8中所示对应弹簧撞珠设置在横梁 41轴体上的球形凹 坑或如图 10、 图 11中所示对应设置在横梁 41轴体上的环形沟槽。
[0048] 图 9中所述的横向窝孔 43为四边形孔， 可以是方孔或长方形孔， 相应地横梁 41上 与横向窝孔 43滑动配合的轴体截面也对应设置成方形或长方形。 这种四边形或多边形孔的 设计特别适于在吊架纵梁 42与车架纵梁 44之间仅设置有两根横梁 41的情况。 当采用两根 横梁 41活动连接吊架纵梁 42与车架纵梁 44时， 如果为了避让障碍物而解除一根横梁 41与 吊架纵梁 42的连接， 即向桥梁内侧拉出一根横梁 41， 使该横梁 41脱开与吊架纵梁 42上横 向窝孔 43的连接， 这时在吊架纵梁 42与车架纵梁 44之间只连接有一根横梁 41， 这一根横 梁 41不仅要承受 C型吊架 25下方检修台 5的重力， 而且由于这一根横梁 41的连接位置在 纵向上偏离 C型吊架 25和检修台 5的中心， 则还要承受 C型吊架 25或检修台 5产生的弯 矩。 这时方形或多边形的横向窝孔 43和相应截面的横梁 41的配合， 可以克服该弯矩而产生 的扭矩， 而避免横梁 41发生扭转。 这种情况下， 如果横向窝孔 43是圆形孔， 横梁 41的截 面是圆形， 则会使横向窝孔 43绕横梁 41转动， 导致 C型吊架 25和检修台 5绕这一根横梁 41偏转的现象。 当吊架纵梁 42与车架纵梁 44之间连接有三根或以上的横梁 41时， 由于在 进行避让障碍物作业时， 在吊架纵梁 42与车架纵梁 44之间连接有两根以上的横梁 41， 从 而在车架纵梁 44上形成了两点支撑， 这时 C型吊架 25和检修台 5偏心所产生的弯矩由车 架纵梁 44自身承担， 无论横向窝孔 43和横梁 41的截面形状是圆形或多边形都不会发生某 一根横梁 41转动或 C型吊架 25和检修台 5偏转的现象。
[0049] 参见图 10， 本发明的另一种结构是在所述的吊架纵梁 42上对应各横梁 41设置有横 向窝孔 43， 所述的横梁 41为两节以上的可伸縮式梁， 所述可伸縮式梁的固定部固定在车架 纵梁 44上， 横梁 41的伸縮部前端上设置有与所述吊架纵梁 42上横向窝孔 43滑动配合的轴 体。 所述横梁 41伸縮部縮回后距车架纵梁 44的最小距离应小于车架纵梁 44在桥梁横向上 至桥侧障碍物的最小距离， 以防止在避让障碍物时， 横梁 41伸縮部被障碍物挡住。 所述的 横梁 41为可伸縮式梁时， 可伸縮式梁可采用如同吊车臂的结构， 即可伸縮式梁采用箱形梁 结构， 在内部安装伸縮式液压缸， 并在架车底盘 21或车架纵梁 44上安装与各伸縮式液压缸 连通的液压系统， 以保证各可伸縮式梁的正常伸縮。 当然， 所述的可伸縮式梁中也可以安装 如千斤顶， 螺杆等直线往复机构使横梁 41成为可伸縮式梁。 在横梁 41与横向窝孔 43的连 接方式上， 也可以在横向窝孔 43内设置内螺纹， 在横梁伸縮部的前端对应设置外螺纹， 通 过螺杆的转动带动横梁伸縮部的前端转动， 并与横向窝孔 43的内螺纹相啮合的连接方式。
[0050] 参见图 11， 本发明的第三种结构是对图 10中横梁 41的改进， 所述可伸縮式梁的固 定部铰接在车架纵梁 44上， 横梁 41的伸縮部前端上设置有与所述吊架纵梁 42上横向窝孔 43滑动配合或螺纹连接的轴体。 如可以在上横梁 41的固定端采用两只纵向插销 45的固结 方式， 或采用在连接铰座和横梁 41固定端的一根铰轴旁边， 对应铰座和横梁 41安装一只卡 销的方式。 这种结构适于横梁 41节数较少， 横梁 41伸縮端收縮后余下的梁段太长， 不足以 避开障碍物的情况， 有利于减少横梁的伸縮节段。 结合图 7， 当本结构需要避让桥侧边的路 灯杆 3时， 可先将横梁 41的伸縮端从吊架纵梁 42上的横向窝孔 43中退出， 然后拔掉一根 插销 45， 让该横梁 41绕另一只插销 45向上或向下摆动， 在桥面的宽度方向上避让开路灯 杆 3， 再推动本发明检测车前行， 从桥梁纵向上使该横梁 41越过路灯杆 3， 最后再将该横梁 41放平重新插上拔掉的插销 45， 使横梁 41的伸縮端伸长并插入横向窝孔 43内， 即完成一 根横梁 41避让路灯杆 3的操作， 按此依次进行其后的横梁 41避让路灯杆 3的操作， 即在不 影响桥下检修工作的情况下， 可单车避让开桥侧的障碍物。 可见， 本发明检修车避让障碍物 的过程操作简便， 安全可靠， 可在不中断桥面下方检修台 5工作的状态下进行， 施工效率较 高。

Claims

权 利 要 求 书
1. 一种能避让桥侧障碍的吊架铰接式桥梁检修车， 包括架车和可伸至桥梁外侧的吊臂， 所 述的架车包括车架底盘 （21)， 所述的吊臂为 C型吊架 （25)， 所述的车架底盘 （21) 经纵 轴铰 （22) 和纵轴与一支柱 （23) 的下端相铰接， 所述 C型吊架 （25) 下横梁的伸出端上 至少设置有一个吊绳 （26) 的固定点或吊绳收放装置， 其特征在于： 所述支柱 （23) 的上端 固定有一根车架纵梁 （44)， 所述 C型吊架 （25) 的竖杆上端固定有一根吊架纵梁 （42)， 所述的吊架纵梁 （42) 与所述的车架纵梁 （44) 通过至少两根横梁 （41) 活动连接成一体。
2. 根据权利要求 1所述的一种能避让桥侧障碍的吊架铰接式桥梁检修车， 其特征在于： 所 述的吊架纵梁 （42) 与车架纵梁 （44) 上的横梁 （41) 间隔排列， 相邻的两根横梁 （41) 间 的最小距离大于桥侧障碍物在桥梁纵向上的长度。
3. 根据权利要求 1所述的一种能避让桥侧障碍的吊架铰接式桥梁检修车， 其特征在于： 所 述的车架纵梁 （44) 和吊架纵梁 （42) 上对应的间隔设置有横向窝孔 （43)， 所述的横梁
(41) 上分别设置有与所述横向窝孔 （43) 滑动配合的轴体。
4. 根据权利要求 1所述的一种能避让桥侧障碍的吊架铰接式桥梁检修车， 其特征在于： 所 述的吊架纵梁 （42) 上对应各横梁 （41) 设置有横向窝孔 （43)， 所述的横梁 （41) 为两节 以上的可伸縮式梁， 所述可伸縮式梁的固定部固定或铰接在车架纵梁 （44) 上， 横梁 （41) 的伸縮部前端上设置有与所述吊架纵梁 （42) 上横向窝孔 （43) 滑动配合或螺纹连接的轴 体。
5. 根据权利要求 3或 4所述的一种能避让桥侧障碍的吊架铰接式桥梁检修车， 其特征在 于： 所述的车架纵梁 （44) 和 /或吊架纵梁 （42) 上对应横向窝孔 （43) 设置有轴向活动止 挡装置 （46)， 所述横梁 （41) 两端的轴体上对应轴向活动止挡装置 （46) 设置有定位槽。
6. 根据权利要求 5所述的一种能避让桥侧障碍的吊架铰接式桥梁检修车， 其特征在于： 所 述的轴向活动止挡装置为弹簧撞珠， 所述的定位槽为对应弹簧撞珠设置在横梁 （41) 轴体上 的球形凹坑或环形沟槽。
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