CN214143337U - Installation device of composite cable saddle of narrow cavern of mountain suspension bridge - Google Patents
Installation device of composite cable saddle of narrow cavern of mountain suspension bridge Download PDFInfo
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- CN214143337U CN214143337U CN202023145232.6U CN202023145232U CN214143337U CN 214143337 U CN214143337 U CN 214143337U CN 202023145232 U CN202023145232 U CN 202023145232U CN 214143337 U CN214143337 U CN 214143337U
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Abstract
The installation device comprises a portal frame, a support pillar and a support pillar, wherein the portal frame is positioned in a tunnel anchor hole, the front end of the portal frame is close to a hole of the tunnel anchor hole, and the rear end of the portal frame extends to the top surface of the support pillar of the composite cable saddle; the sliding support is positioned at the top of the portal and performs reciprocating linear motion on the portal, and the top of the sliding support is provided with a steering pulley and a hanging steel wire rope for hanging the composite cable saddle component; and the winch is positioned at the opening of the tunnel anchor hole and is provided with a hoisting steel wire rope which is wound on the steering pulley and used for hoisting the composite cable saddle component. The installation device of this application has set up the portal in tunnel anchor hole, has set up sliding support at the top of portal, and the portal hangs and removes compound cable saddle component for sliding support and provides atress support and motion direction, is convenient for once only remove the top to compound cable saddle buttress with compound cable saddle component, convenient operation, and construction cost is low.
Description
Technical Field
The application relates to the technical field of suspension bridge erection construction, in particular to a mounting device for a composite cable saddle of a narrow grotto of a suspension bridge in a mountainous area.
Background
The mountain suspension bridge utilizes the existing landform and tunnel anchor to anchor the main cable on the mountain body for saving investment. The conventional mountain suspension bridge is generally provided with a main cable saddle and a cable saddle, wherein the main cable saddle is arranged at the top of a main tower and is hoisted in place by adopting a main cable saddle hoisting portal; the cable saddle is arranged at the tunnel anchor hole, and the cable saddle is hoisted in place by adopting a cable saddle hoisting gantry crane or a large crane due to the fact that the cable saddle is close to the hole and the hoisting height is small.
The composite cable saddle originated in the world is a Jinshajiang grand bridge on a Xiangli highway under construction, and the bridge composite cable saddle is arranged at an anchor hole of a tunnel. Due to the excessive dead weight of the composite cable saddle, the weight of the single body is usually 200 tons. Existing all kinds of roads do not all possess the condition of compound cable saddle bulk transport, generally all adopt the piecemeal manufacturing, piecemeal transportation, piecemeal hoist and mount to the design position, weld again or bolt joint for whole, realize the accurate positioning of compound cable saddle through the plane micromatic setting of self at last.
Because tunnel anchor hole length of tunnel anchor is 37m, and suspension bridge main push-towing rope IP point is only 2.0m from the hole top height, after compound cable saddle passes through flatbed vehicle piecemeal transportation to the next door of compound cable saddle buttress basis, large-scale loop wheel machine is because of the hole inner space is narrow and small, the armed lever is difficult to extend, can't carry out the hoist and mount operation of compound cable saddle, can't realize the installation operation of compound cable saddle in the tunnel anchor hole.
The self weight of the composite cable saddle after being partitioned is generally 50t or less, and a winch is limited in rated hoisting capacity, so that a pulley block is usually additionally arranged at the front end of the winch to realize hoisting of the heavy cable saddle. The pulley block is composed of a movable pulley, a fixed pulley and the like, and the height of the pulley block occupies the lifting height of the composite cable saddle due to limited space, so that the composite cable saddle cannot be lifted to the designed height.
The conventional gantry hoisting scheme is that a winch is arranged right above a gantry, and due to the fact that the space in a tunnel anchor hole is narrow, the height of an IP point of a main cable of a suspension bridge from the top of the tunnel is only 2.0m, and the winch cannot be carried or hoisted right above the gantry.
In view of the fact that the composite cable saddle is installed in the tunnel anchor hole for the first time and the space in the tunnel anchor hole is extremely narrow, it can be determined that the problem that the composite cable saddle is installed in the tunnel anchor hole cannot be solved by adopting the prior art.
Disclosure of Invention
The embodiment of the application provides a mounting device of a composite cable saddle in a narrow grotto of a suspension bridge in a mountainous area to solve the problem that the composite cable saddle cannot be mounted in a tunnel anchor hole in the prior art in the related art.
The embodiment of the application provides in a first aspect a mounting device of compound cable saddle in narrow cavern of mountain area suspension bridge, includes:
the portal frame is positioned in the tunnel anchor hole, the front end of the portal frame is close to the hole opening of the tunnel anchor hole, and the rear end of the portal frame extends to the top surface of the composite cable saddle buttress;
the sliding support is positioned at the top of the portal frame and performs reciprocating linear motion on the portal frame, and a steering pulley and a hanging steel wire rope for hanging a composite cable saddle component are arranged at the top of the sliding support;
and the winch is positioned at the opening of the tunnel anchor hole and is provided with a hoisting steel wire rope which is wound on the steering pulley and used for hoisting the composite cable saddle component.
In some embodiments: the portal includes the stand and is located the distribution beam at stand top, the top of distribution beam is fixed to be equipped with the slide roof beam that extends to the top surface of compound cable saddle buttress, the top of slide roof beam is equipped with and is used for sliding connection sliding support's track.
In some embodiments: the two distribution beams are parallel to each other and are arranged at intervals, the two sides of each distribution beam are provided with the upright posts, and the bottom and the side wall of each upright post are provided with embedded parts connected with the tunnel anchor hole;
the two slide beams are parallel to each other and arranged at intervals, one ends of the two slide beams are connected with the distribution beam, and the other ends of the two slide beams are connected with the top surface of the composite cable saddle buttress.
In some embodiments: the sliding support is of a rectangular frame structure, and the bottom of the sliding support is provided with a roller which is in sliding connection with the portal;
the gantry is provided with a chain block for pulling the sliding support to move, one end of the chain block is connected with the sliding support, and the other end of the chain block is connected with the gantry.
In some embodiments: the bottom of sliding support is equipped with sliding support fixes a position the locating part on the portal, the locating part with can dismantle through the bolt and be connected between the portal.
In some embodiments: the sliding support comprises a plurality of cross beams, the cross beams are connected end to form a rectangular structure, and the end parts of the two cross beams which are parallel to each other are provided with supporting legs;
the top of crossbeam is fixed and is equipped with hoist and mount distributive girder, diverting pulley and hoist and mount distributive girder fixed connection, diverting pulley is equipped with a plurality ofly, and a plurality of diverting pulleys are arranged along the length direction interval of hoist and mount distributive girder.
In some embodiments: the winch is connected with the hoisting steel wire rope through a pulley block.
In some embodiments: the pulley block comprises a fixed pulley block, a movable pulley block and a steel wire rope, the steel wire rope sequentially penetrates through pulleys of the fixed pulley block and the movable pulley block, and the tail end of the steel wire rope is connected with the winch;
the movable pulley block is connected with the hoisting steel wire rope, and the fixed pulley block is connected with the ground of the tunnel anchor hole through a ground anchor.
In some embodiments: the diameters of the hanging steel wire rope and the hoisting steel wire rope are both larger than or equal to 60mm, and the door frame and the sliding support are both formed by welding I-shaped steel and/or channel steel.
In a second aspect of the embodiments of the present application, there is provided a method for installing a composite cable saddle of a narrow cavern of a suspension bridge in a mountainous area, the method using the installation apparatus of the composite cable saddle of the narrow cavern of the suspension bridge in the mountainous area according to any of the above embodiments, the method including the following steps:
transporting the composite cable saddle component to the side of a composite cable saddle buttress in the tunnel anchor hole and below the portal;
moving the sliding support on the portal frame, moving the sliding support above the composite cable saddle component and positioning the sliding support on the portal frame through the limiting piece;
winding a hoisting steel wire rope on a steering pulley on the sliding support, and reliably connecting the hoisting steel wire rope with the composite cable saddle component;
starting a steel wire rope of a winding pulley block of the winch, pulling the hoisting steel wire rope by the pulley block to lift the composite cable saddle component upwards, and stopping lifting after the composite cable saddle component is higher than the top surface of the composite cable saddle buttress;
the composite cable saddle component is hung on the sliding support by utilizing a hanging steel wire rope, and the winch loosens the steel wire rope of the pulley block;
removing the limiting part of the sliding support, installing a chain block between the sliding support and the portal, and pulling the sliding support by using the chain block to move the composite cable saddle component to the top of the composite cable saddle buttress;
positioning the sliding support on the portal through a limiting part, starting a winch to wind a steel wire rope of a pulley block, then taking down the hanging steel wire rope, releasing the steel wire rope of the pulley block by the winch to lower the composite cable saddle component and installing the composite cable saddle component on the composite cable saddle buttress;
and repeating the steps, and mounting all the rest composite cable saddle components on the composite cable saddle buttress.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a mounting device of a composite cable saddle of a narrow cavern of a suspension bridge in a mountainous area, wherein the mounting device is provided with a portal which is positioned in a tunnel anchor hole, the front end of the portal is close to a cave entrance of the tunnel anchor hole, and the rear end of the portal extends to the top surface of a buttress of the composite cable saddle; the sliding support is positioned at the top of the portal and performs reciprocating linear motion on the portal, and the top of the sliding support is provided with a steering pulley and a hanging steel wire rope for hanging the composite cable saddle component; and the winch is positioned at the opening of the tunnel anchor hole and is provided with a hoisting steel wire rope which is wound on the steering pulley and used for hoisting the composite cable saddle component.
Consequently, the installation device of this application has set up the portal in tunnel anchor hole, has set up sliding support at the top of portal, and the portal hangs and removes compound cable saddle component for sliding support and provides atress support and motion direction, is convenient for once only remove the top to compound cable saddle buttress with compound cable saddle component, convenient operation, and construction cost is low. This application sets up the hoist engine at the entrance to a cave in tunnel anchor hole, through the hoist engine with lift by crane wire rope with compound cable saddle component promote to set for the height, solved traditional hoisting accessory and be difficult to the problem that is suitable for in constrictive tunnel anchor hole. Simultaneously the hoist engine setting of this application is at the entrance to a cave in tunnel anchor hole, and the compound cable saddle component is whole to be installed the recycle of the hoist engine of being convenient for after accomplishing.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a sliding support embodying the present application positioned at the front end of a gantry;
FIG. 2 is a schematic view of a sliding support embodied herein positioned at the rear end of a gantry;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is a schematic structural view of a sliding support embodying the present application;
fig. 6 is a schematic structural view of a hoist, a pulley block, and a hoisting rope according to an embodiment of the present disclosure.
Reference numerals:
1. a gantry; 2. a sliding support; 3. a winch; 4. a pulley block; 5. hoisting a steel wire rope; 6. hanging a steel wire rope; 7. chain rewinding; 8. a composite cable saddle member; 9. a composite cable saddle buttress; 10. anchoring holes in the tunnel;
11. a distribution beam; 12. a slideway beam; 13. a track; 14. a column; 15. embedding parts; 21. hoisting the distribution beam; 22. a diverting pulley; 23. a roller; 24. a limiting member; 25. a support leg; 26. a cross beam; 41. a fixed pulley block; 42. a movable pulley block; 43. a wire rope; 44. and (7) anchoring the ground.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a mounting device of a composite cable saddle of a narrow cavern of a mountain suspension bridge, which can solve the problem that the prior art cannot solve the problem that the composite cable saddle is mounted in a tunnel anchor hole.
Referring to fig. 1, 2 and 4, in a first aspect, an embodiment of the present application provides a device for installing a composite cable saddle in a narrow cavern of a suspension bridge in a mountainous area, including:
the portal frame 1 is fixedly arranged in the tunnel anchor hole 10, the front end of the portal frame 1 is close to the hole of the tunnel anchor hole 10, and the rear end of the portal frame 1 extends to the top surface of the composite cable saddle buttress 9 and is fixedly connected with the top surface of the composite cable saddle buttress 9.
The sliding support 2 is positioned on the top of the portal frame 1 and reciprocates linearly on the portal frame 1, and the top of the sliding support 2 is provided with a steering pulley 22 and a hanging steel wire rope 6 for hanging the composite cable saddle component 8.
And the winch 3 is fixedly arranged on the ground of the hole of the tunnel anchor hole 10, and the winch 3 is provided with a hoisting steel wire rope 5 wound on the steering pulley 22 and used for lifting the composite cable saddle member 8. The diameters of the hanging steel wire rope 6 and the hoisting steel wire rope 5 are both more than or equal to 60mm, and the hanging steel wire rope 6 and the hoisting steel wire rope 5 have enough structural strength when the hoisting weight reaches 50t of the composite cable saddle component 8.
The installation device of this application has set up portal 1 in tunnel anchor hole 10, has set up sliding support 2 at the top of portal 1, and portal 1 hangs and removes compound cable saddle component 8 for sliding support 2 and provides the atress support and motion direction, is convenient for once only remove compound cable saddle component 8 to the top of compound cable saddle buttress 9, convenient operation, and construction cost is low.
This application sets up hoist engine 3 at the entrance to a cave of tunnel anchor hole 10, promotes compound cable saddle component 8 to setting for the height through hoist engine 3 and lifting by crane wire rope 5, has solved traditional hoisting accessory and has been difficult to the problem that is suitable for in constrictive tunnel anchor hole. Simultaneously, the winch 3 is arranged at the hole of the tunnel anchor hole 10, and the composite cable saddle component 8 is convenient to recycle after being completely installed.
In some alternative embodiments: referring to fig. 1, 2 and 4, the embodiment of the application provides a mounting device for a composite cable saddle of a narrow cavern of a suspension bridge in a mountainous area, wherein a gantry 1 of the mounting device comprises an upright post 14 and two distribution beams 11 positioned at the top of the upright post 14, the two distribution beams 11 are arranged in parallel and at intervals. Upright columns 14 are arranged on two sides of the two distribution beams 11, embedded parts 15 connected with the tunnel anchor holes 10 are arranged on the bottom and the side walls of the upright columns 14, and the embedded parts 15 are used for enhancing the structural strength of the upright columns 14. The door frame 1 is formed by welding I-shaped steel or channel steel.
The top of the distribution beam 11 is fixedly provided with two slide way beams 12 extending to the top surface of the composite cable saddle buttress 9, and the two slide way beams 12 are parallel to each other and arranged at intervals. One ends of the two slideway beams 12 are vertically connected with the distribution beam 11, and the other ends of the two slideway beams 12 are fixedly connected with the top surface of the composite cable saddle buttress 9. The top of each of the two slideway beams 12 is provided with a rail 13 for slidably connecting the sliding support 2, and the sliding support 2 reciprocates linearly on the rails 13 along the length direction of the rails 13.
In some alternative embodiments: referring to fig. 1, 2 and 5, the embodiment of the application provides a mounting device for a composite cable saddle of a narrow chamber of a suspension bridge in a mountainous area, a sliding support 2 of the mounting device is of a rectangular frame structure, and a roller 23 which is in sliding connection with a rail 13 of a gantry 1 is arranged at the bottom of the sliding support 2.
The sliding support 2 comprises four cross beams 26, the four cross beams 26 are connected end to form a rectangular structure, the end portions of the two parallel cross beams 26 are provided with supporting legs 25, the number of the supporting legs 25 is four, and the rollers 23 are located at the bottoms of the supporting legs 25 and are rotatably connected with the supporting legs 25.
And a hoisting distribution beam 21 is fixedly arranged at the top of the cross beam 26, and the hoisting distribution beam 21 is vertical to the track 13 of the gantry. The three diverting pulleys 22 are fixedly connected with the hoisting distribution beam 21, and the three diverting pulleys 22 on the hoisting distribution beam 21 are arranged at intervals along the length direction of the hoisting distribution beam 21.
The steering pulley 22 positioned in the middle of the three steering pulleys 22 is used for providing motion guidance and stress support for the hoisting steel wire rope 5; the steering pulleys 22 on two sides of the three steering pulleys 22 are used for respectively hanging and hanging the steel wire rope 6, and provide stress support for hanging the composite cable saddle component 8 on the steel wire rope 6. The sliding support 2 is formed by welding I-shaped steel or channel steel.
In some alternative embodiments: referring to fig. 1 to 3, the embodiment of the application provides a mounting device for a composite cable saddle of a narrow cavern of a suspension bridge in a mountainous area, a gantry 1 of the mounting device is provided with a chain block 7 for pulling a sliding support 2 to move, one end of the chain block 7 is connected with the sliding support 2, and the other end of the chain block 7 is connected with the gantry 1.
When the sliding support 2 is driven to move on the portal 1, the sliding support 2 is pulled to move on the portal 1 according to the set direction and speed by adjusting the length of the chain block 7. Of course, the movement of the sliding support 2 on the gantry 1 is not limited to the use of a chain block 7, and those skilled in the art may use a mechanism such as a hydraulic cylinder, a rack and pinion mechanism, etc. capable of achieving linear motion.
In some alternative embodiments: referring to fig. 2, the embodiment of the application provides a mounting device for a composite cable saddle of a narrow cavern of a suspension bridge in a mountainous area, a limiting piece 24 for positioning the sliding support 2 on the portal 1 is arranged at the bottom of the sliding support 2 of the mounting device, and the limiting piece 24 is detachably connected with the slideway beam 12 through a bolt.
When the winch 3 and the hoisting steel wire rope 5 lift or lower the composite cable saddle component 8, the sliding support 2 needs to be fixed on the gantry 1 through the limiting part 24, so that the sliding support 2 is prevented from being displaced or overturned due to horizontal component force.
In some alternative embodiments: referring to fig. 1, 2 and 6, the embodiment of the application provides a mounting device for a composite cable saddle of a narrow chamber of a suspension bridge in a mountainous area, wherein a winch 3 and a hoisting steel wire rope 5 of the mounting device are connected through a pulley block 4.
The pulley block 4 comprises a fixed pulley block 41, a movable pulley block 42 and a steel wire rope 43, the steel wire rope 43 sequentially passes through pulleys of the fixed pulley block 41 and the movable pulley block 42, and the tail end of the steel wire rope 43 is connected with the winch 3; the steel wire rope 43 is wound on the movable pulley block 42 for six times.
The movable pulley block 42 is connected with the hoisting steel wire rope 5, and the fixed pulley block 41 is connected with the ground of the tunnel anchor hole 10 through the ground anchor 44. The pulley block 4 of this embodiment is used for laborsaving, can not use the pulley block 4 when the tonnage of hoist engine 3 is enough big, and hoist engine 3 can directly promote compound cable saddle component 8 through lifting by crane wire rope 5.
Referring to fig. 1 to 6, a second aspect of the embodiments of the present application provides a method for installing a composite saddle of a narrow-cavern of a mountain suspension bridge, the method using the installation apparatus of the composite saddle of the narrow-cavern of the mountain suspension bridge according to the above embodiments, the method comprising the following steps:
step 1, transporting the composite cable saddle component 8 to the side of a composite cable saddle buttress 9 in a tunnel anchor hole 10 by using a flat car, and locating at the lower position of a portal 1.
And 2, moving the sliding support 2 on the gantry 1, moving the sliding support 2 above the composite cable saddle component 8, and positioning the sliding support 2 on the gantry 1 through a limiting piece 24.
And 3, winding the hoisting steel wire rope 5 on the steering pulley 22 on the sliding support 2, and reliably connecting the free end of the hoisting steel wire rope 5 with the composite cable saddle component 8.
And 4, starting the winch 3 to wind the steel wire rope 43 of the pulley block 4, pulling the hoisting steel wire rope 5 by the winch 3 and the pulley block 4 to lift the composite cable saddle component 8 upwards, and stopping lifting after the composite cable saddle component 8 is lifted to be higher than the top surface of the composite cable saddle buttress 9.
And 5, hanging the composite cable saddle component 8 on the steering pulley 22 of the sliding support 2 by using the hanging steel wire rope 6, transferring the gravity of the composite cable saddle component 8 to the hanging steel wire rope 6 from the hoisting steel wire rope 5, and loosening the steel wire rope 43 of the pulley block 4 by using the winch 3.
And 6, releasing the limiting part 24 of the sliding support 2, installing a chain block 7 between the sliding support 2 and the portal 1, and pulling the sliding support 2 by using the chain block 7 to translate the composite saddle component 8 to the top of the composite saddle buttress 9.
And 7, positioning the sliding support 2 on the gantry 1 through the limiting part 24, starting the winch 3 to wind the steel wire rope 43 of the pulley block 4, then taking down the hanging steel wire rope 6, transferring the gravity of the composite cable saddle component 8 to the hoisting steel wire rope 5 through the hanging steel wire rope 6, and releasing the steel wire rope 43 of the pulley block 4 by the winch 3 to lower the composite cable saddle component 8 and install the composite cable saddle support pier 9.
And 8, repeating the steps 1 to 7, and mounting all the rest composite saddle members 8 on the composite saddle buttress 9.
Principle of operation
The embodiment of the application provides a mounting device of a composite cable saddle of a narrow cavern of a suspension bridge in a mountainous area, wherein the mounting device is provided with a portal 1 which is positioned in a tunnel anchor hole 10, the front end of the portal 1 is close to a hole of the tunnel anchor hole 10, and the rear end of the portal 1 extends to the top surface of a buttress 9 of the composite cable saddle; the sliding support 2 is positioned at the top of the portal 1 and reciprocates linearly on the portal 1, and the top of the sliding support 2 is provided with a steering pulley 22 and a hanging steel wire rope 6 for hanging the composite cable saddle component 8; and the winch 3 is positioned at the hole opening of the tunnel anchor hole 10, and the winch 3 is provided with a hoisting steel wire rope 5 which is wound on the steering pulley 22 and used for hoisting the composite cable saddle component 8.
The installation device of this application has set up portal 1 in tunnel anchor hole 10, has set up sliding support 2 at the top of portal 1, and portal 1 hangs and removes compound cable saddle component 8 for sliding support 2 and provides the atress support and motion direction, is convenient for once only remove compound cable saddle component 8 to the top of compound cable saddle buttress 9, convenient operation, and construction cost is low. This application sets up hoist engine 3 at the entrance to a cave of tunnel anchor hole 10, promotes compound cable saddle component 8 to setting for the height through hoist engine 3 and lifting by crane wire rope 5, has solved traditional hoisting accessory and has been difficult to the problem that is suitable for in constrictive tunnel anchor hole. Simultaneously, the winch 3 is arranged at the hole of the tunnel anchor hole 10, and the composite cable saddle component 8 is convenient to recycle after being completely installed.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. Installation device of compound cable saddle in narrow cavern of mountain area suspension bridge, its characterized in that includes:
the portal frame (1) is positioned in a tunnel anchor hole (10), the front end of the portal frame (1) is close to the hole of the tunnel anchor hole (10), and the rear end of the portal frame (1) extends to the top surface of the composite cable saddle buttress (9);
the sliding support (2) is positioned at the top of the portal (1) and moves on the portal (1) in a reciprocating linear mode, and a steering pulley (22) and a hanging steel wire rope (6) for hanging the composite cable saddle component (8) are arranged at the top of the sliding support (2);
and the winch (3) is positioned at the hole opening of the tunnel anchor hole (10), and the winch (3) is provided with a hoisting steel wire rope (5) which is wound on the steering pulley (22) and used for hoisting the composite cable saddle component (8).
2. The installation device of the composite cable saddle of the narrow cavern of the suspension bridge in the mountainous area as claimed in claim 1, wherein:
the gantry (1) comprises a vertical column (14) and a distribution beam (11) positioned at the top of the vertical column (14), wherein a slide way beam (12) extending to the top surface of the composite cable saddle buttress (9) is fixedly arranged at the top of the distribution beam (11), and a track (13) used for being connected with the sliding support (2) in a sliding mode is arranged at the top of the slide way beam (12).
3. The installation device of the composite cable saddle for the narrow cavern of the suspension bridge in the mountainous area as claimed in claim 2, wherein:
the number of the distribution beams (11) is two, the two distribution beams (11) are parallel to each other and are arranged at intervals, the upright columns (14) are arranged on two sides of each distribution beam (11), and embedded parts (15) connected with the tunnel anchor holes (10) are arranged on the bottoms and the side walls of the upright columns (14);
the two slide way beams (12) are arranged in parallel and are arranged at intervals, one end of each slide way beam (12) is connected with the distribution beam (11), and the other end of each slide way beam is connected with the top surface of the composite cable saddle buttress (9).
4. The installation device of the composite cable saddle of the narrow cavern of the suspension bridge in the mountainous area as claimed in claim 1, wherein:
the sliding support (2) is of a rectangular frame structure, and the bottom of the sliding support (2) is provided with a roller (23) which is in sliding connection with the portal (1);
the gantry crane is characterized in that a chain block (7) for pulling the sliding support (2) to move is arranged on the gantry (1), one end of the chain block (7) is connected with the sliding support (2), and the other end of the chain block (7) is connected with the gantry (1).
5. The installation device of the composite cable saddle of the narrow cavern of the mountain suspension bridge as claimed in claim 1 or 4, wherein:
the bottom of sliding support (2) is equipped with sliding support (2) location locating part (24) on portal (1), locating part (24) with can dismantle the connection through the bolt between portal (1).
6. The installation device of the composite cable saddle of the narrow cavern of the mountain suspension bridge as claimed in claim 1 or 4, wherein:
the sliding support (2) comprises a plurality of cross beams (26), the cross beams (26) are connected end to enclose a rectangular structure, and supporting legs (25) are arranged at the end parts of the two parallel cross beams (26);
the top of crossbeam (26) is fixed and is equipped with hoist and mount distributive girder (21), diverting pulley (22) and hoist and mount distributive girder (21) fixed connection, diverting pulley (22) are equipped with a plurality ofly, and a plurality of diverting pulley (22) are arranged along the length direction interval of hoist and mount distributive girder (21).
7. The installation device of the composite cable saddle of the narrow cavern of the suspension bridge in the mountainous area as claimed in claim 1, wherein:
the winch (3) is connected with the hoisting steel wire rope (5) through a pulley block (4).
8. The installation device of the composite cable saddle for the narrow cavern of the suspension bridge in the mountainous area as claimed in claim 7, wherein:
the pulley block (4) comprises a fixed pulley block (41), a movable pulley block (42) and a steel wire rope (43), the steel wire rope (43) sequentially penetrates through pulleys of the fixed pulley block (41) and the movable pulley block (42), and the tail end of the steel wire rope is connected with the winch (3);
the movable pulley block (42) is connected with the hoisting steel wire rope (5), and the fixed pulley block (41) is connected with the ground of the tunnel anchor hole (10) through a ground anchor (44).
9. The installation device of the composite cable saddle of the narrow cavern of the suspension bridge in the mountainous area as claimed in claim 1, wherein:
the diameters of the hanging steel wire rope (6) and the hoisting steel wire rope (5) are larger than or equal to 60mm, and the portal frame (1) and the sliding support (2) are formed by welding I-shaped steel and/or channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023145232.6U CN214143337U (en) | 2020-12-23 | 2020-12-23 | Installation device of composite cable saddle of narrow cavern of mountain suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023145232.6U CN214143337U (en) | 2020-12-23 | 2020-12-23 | Installation device of composite cable saddle of narrow cavern of mountain suspension bridge |
Publications (1)
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| CN112627043A (en) * | 2020-12-23 | 2021-04-09 | 中铁开发投资集团有限公司 | Installation device and method for composite cable saddle of narrow cavern of suspension bridge in mountainous area |
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