CN112952661A - Installation structure and construction method for laying cable in narrow space - Google Patents
Installation structure and construction method for laying cable in narrow space Download PDFInfo
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- CN112952661A CN112952661A CN202110380253.6A CN202110380253A CN112952661A CN 112952661 A CN112952661 A CN 112952661A CN 202110380253 A CN202110380253 A CN 202110380253A CN 112952661 A CN112952661 A CN 112952661A
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- cable
- rolling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/083—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using lines, e.g. needles, rods or tapes
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Abstract
The invention discloses an installation structure and a construction method for laying cables in a narrow space. The cable laying structure formed by the rolling and lifting device and the guide device can effectively improve the cable laying quality and efficiency in a narrow space, reduce manual use, effectively reduce the construction cost and the construction period and improve the overall construction efficiency.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an installation structure and a construction method for laying cables in a narrow space.
Background
At present, the domestic cable laying modes comprise the following modes: one is to lay cables in a ground direct-buried cable trench and a laid cable trench with a cover plate; one, also the most used in electromechanical installations, is to lay cables on a bridge. The cables are laid on the ground and in the concrete cable trench, usually by means of winches and rollers or by means of cable-laying machines. But above-mentioned mode all can't satisfy the construction operation in narrow and small space completely, when carrying out laying of large cross-section power cable in narrow and small space environment, the cable laying machine is because the volume restriction can't use, has the artifical shortcoming of inconsistent or even can't exert oneself hard again when laying artificially, if use traditional gyro wheel and manpower carry out large cross-section cable laying and not only waste time but also hard, the cost is higher and can't satisfy construction safety and time limit for a project requirement. The invention provides an installation structure and a construction method for laying cables in a narrow space.
Disclosure of Invention
The invention provides an installation structure and a construction method for laying cables in a narrow space, which can realize rapid cable laying in the narrow space.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an installation structure for laying cables in a narrow space comprises a rolling and lifting device, a guide device and a traction device, wherein the rolling and lifting device is arranged on a drainage ditch of a tunnel cable laying path at intervals, the guide device is arranged at the starting point and the corner of the tunnel cable laying path, the traction device is arranged at the end point of the tunnel cable laying path, the cables penetrate through the rolling and lifting device and the guide device, and the starting ends of the cables are connected to the traction device;
the rolling and hoisting device comprises a rolling rod structure and a hoisting structure, and the hoisting structure is arranged on the rolling rod structure; the rolling rod structure comprises two rolling rods and two rolling rod seats, the two rolling rod seats are symmetrically arranged and fixedly connected to the drainage ditch, and the rolling rods are arranged between the two rolling rod seats; the rolling bar seat comprises a vertical plate, a bearing group and a base, the vertical plate is vertically arranged on the base, the bearing group is arranged on the inner side of the vertical plate, and two ends of the rolling bar are respectively positioned on the bearing groups of the two rolling bar seats; the two rolling rod seats are connected through a connecting rod.
Further, hoisting structure includes pole setting seat, pole setting, horizontal pole, assembly pulley and lifting rope, the pole setting seat is established on the base, the connection can be dismantled on the pole setting seat to the pole setting, the top at two pole settings is established to the horizontal pole, the assembly pulley is established on the horizontal pole, the lifting rope is established on the assembly pulley, and lifting rope one end is connected on the cable, and the other end is in free state.
Furthermore, the vertical plate is provided with a mounting hole, the bearing group is positioned below the mounting hole and comprises two bearings which are arranged at the same height, the end part of the rolling rod is erected on the bearings and positioned between the two bearings, and the end part of the rolling rod extends into the mounting hole of the vertical plate.
Furthermore, the vertical rod seat is located on the outer side of the vertical plate, and the top of the vertical rod seat is located on the outer side of the end portion of the rolling rod.
Furthermore, two ends of each connecting rod are respectively connected to the two vertical plates, and the number of the connecting rods is three, and the connecting rods are distributed in a triangular shape.
Furthermore, a handle is arranged on the vertical plate and is welded and connected to the top of the vertical plate.
Further, the periphery of the bearing group is tangent to the periphery of the mounting hole in the vertical plate.
Further, guider includes the guide pulley, allies oneself with cable pulley and cable protection pulley more, the starting point at tunnel cable laying route is established to cable protection pulley, the starting point and the terminal point at tunnel cable laying route are established to allied oneself with cable pulley more, the guide pulley is established in the corner of tunnel cable laying route.
A construction method of an installation structure for laying cables in a narrow space comprises the following steps:
s1, equipment installation: according to the design requirement of cable laying, mounting a rolling and lifting device and a guide device along a cable laying path, and mounting a traction device at the end point of the cable laying path;
s2, cable laying: erecting and fixing a cable reel at the starting point of a cable laying path, connecting one end of a steel wire rope with the cable starting end, and connecting the other end of the steel wire rope with a traction device after penetrating through a rolling and lifting device and a guide device; starting a traction device to pull the cable to advance along the laying path until the cable penetrates out;
s3, repeating construction: cabling is carried out one by one according to the operation of S2 until all cables penetrate out;
s4, cable lifting: after the cables are laid, an operator enters the tunnel, the cables on the rolling rod structure are lifted to the wall support through the lifting structure, and construction is sequentially carried out from the starting point of the cable laying path until all the cables are lifted to the wall support;
s5, equipment dismantling: and (4) removing the rolling and lifting device, the guide device and the traction device in sequence, and transferring to the next working place for construction.
Further, in step S4, the specific construction method for hoisting the cable is as follows:
an operator fixes one end of the lifting rope on the cable, pulls the other end of the lifting rope, and lifts and places the cable on the wall bracket; and the operator sequentially carries out hoisting construction along the starting point of the cable laying path.
The invention has the following beneficial effects:
by adopting the cable laying structure formed by the rolling and lifting device and the guide device, the cable laying quality and efficiency in a narrow space can be effectively improved, the manual use is reduced, the construction cost and the construction period are effectively reduced, and the overall construction efficiency is improved;
the rolling and lifting device is arranged, so that the friction of the cable during movement can be effectively reduced to protect the cable when the cable is laid, and the movement efficiency of the cable is enhanced; and the rolling and lifting device can effectively reduce the cable lifting difficulty in a narrow space and reduce the labor intensity.
Drawings
FIG. 1 is a view of the overall structural arrangement of the present invention;
FIG. 2 is a schematic view of the placement of the roll-lifting device of the present invention;
FIG. 3 is a schematic view of the use state of the rolling and hoisting device of the present invention;
FIG. 4 is a schematic structural view of the rolling and lifting device of the present invention;
FIG. 5 is a schematic view showing the installation state of the rolling bar according to the present invention;
FIG. 6 is a schematic view of the rolling rod seat structure of the present invention.
Reference numerals: 1-rolling and hoisting device, 11-rolling rod structure, 111-rolling rod, 112-vertical plate, 113-bearing group, 114-base, 115-connecting rod, 12-hoisting structure, 121-vertical rod seat, 122-vertical rod, 123-cross rod, 2-guiding device and 3-traction device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1, 2, 3, a mounting structure who lays cable in narrow and small space, including rolling hoist device 1, guider 2 and draw gear 3, roll hoist device 1 interval and set up on the escape canal in tunnel cable laying route, guider 2 establishes at the initial point and the corner in tunnel cable laying route, draw gear 3 establishes the terminal point in tunnel cable laying route, and the cable passes and rolls hoist device 1 and guider 2, and its lifting end is connected on draw gear 3.
The construction principle of the invention is as follows: firstly, erecting rolling and lifting devices 1 one by one along a tunnel, arranging guide devices 2 at corners, and fixing a traction device 3 at the other exit of the tunnel; the cable is at the laying process, adopts wire rope to be connected cable tip and draw gear 3, then under draw gear 3's traction, the pulling cable makes it advance on rolling and hanging device 1 to turn round through guider 2 in the corner, and then realize accomplishing laying of cable in narrow tunnel, after the cable laying is accomplished, hoist structure 12 through rolling and hanging device 1 lifts the cable from rolling the thick stick 111 and lays to the cable support, accomplish laying.
As shown in fig. 3, 4, 5 and 6, the rolling and hoisting device 1 includes a rolling bar structure 11 and a hoisting structure 12, and the hoisting structure 12 is arranged on the rolling bar structure 11; the rolling rod structure 11 comprises two rolling rods 111 and two rolling rod seats, the two rolling rod seats are symmetrically arranged and fixedly connected to the drainage ditch, and the rolling rods 111 are arranged between the two rolling rod seats; the rolling bar seats comprise vertical plates 112, bearing groups 113 and a base 114, the vertical plates 112 are vertically arranged on the base 114, the bearing groups 113 are arranged on the inner sides of the vertical plates 112, and two ends of the rolling bar 111 are respectively positioned on the bearing groups 113 of the two rolling bar seats; the two roller bases are connected by a connecting rod 115.
The roller structure 11 functions in the following manner: the rolling rod 111 supports behind two rolling rod seats, and uses connecting rod 115 to roll two back of the lever seat connection, and the rolling rod 111 is restricted between two rolling rod seats, and can the free rotation, and at the in-process of pulling the cable, the cable motion drives rolling rod 111 and rotates, is with the sliding friction conversion of cable with little rolling friction, effectively reduces the pulling degree of difficulty and the reduction wearing and tearing of cable.
The rolling rod 111 is arranged between the two bearing groups 113, and the rolling rod 111 is in contact with the bearings when rolling, so that the rotation friction of the rolling rod 111 can be effectively reduced, and the pulling efficiency of the cable is further improved.
As shown in fig. 3 and 4, further, the hoisting structure 12 includes a vertical rod seat 121, a vertical rod 122, a cross rod 123, a pulley block and a lifting rope, the vertical rod seat 121 is disposed on the base 114, the vertical rod 122 is detachably connected to the vertical rod seat 121, the cross rod 123 is disposed at the top ends of the two vertical rods 122, the pulley block is disposed on the cross rod 123, the lifting rope is disposed on the pulley block, one end of the lifting rope is connected to the cable, and the other end of the lifting rope is in a free state.
As shown in fig. 5 and 6, the vertical plate 112 is provided with a mounting hole, the bearing set 113 is located below the mounting hole, the bearing set 113 includes two bearings with equal height, the end of the roller 111 is mounted on the bearings and located between the two bearings, and the end of the roller 111 extends into the mounting hole of the vertical plate 112. Mounting holes are formed in the vertical plate 112 to limit the rolling rod 111 and prevent the rolling rod 111 from jumping out of the bearing set 113, so that the rolling rod 111 is always in contact with the bearing set 113.
As shown in fig. 5, the vertical rod seat 121 is located outside the vertical plate 112, and the top of the vertical rod seat 121 is located outside the end of the roller 111. The vertical rod seat 121 is used for limiting the axial movement of the roller 111 and preventing the roller 111 from being separated from the vertical plate 112 during the rotation process.
As shown in fig. 5, two ends of the connecting rods 115 are respectively connected to the two vertical plates 112, and the number of the connecting rods 115 is three, and the connecting rods are distributed in a triangular shape.
Further, a handle is arranged on the vertical plate 112, and the handle is welded to the top of the vertical plate 112.
Further, the outer circumference of the bearing set 113 is tangent to the outer circumference of the mounting hole on the vertical plate 112.
Preferably, the base 114 is fixed to the drain by bolts.
Preferably, the rolling bar 111 and the vertical bar seat 121 are steel pipes, the vertical plate 112 and the base 114 are steel plates, and are connected by welding, and the vertical bar 122 and the horizontal bar 123 are both steel pipes.
Further, guider 2 includes guide pulley, allies oneself with cable pulley and cable protection pulley more, the starting point at tunnel cable laying route is established to cable protection pulley, the starting point and the terminal point in tunnel cable laying route are established to allied oneself with cable pulley more, guide pulley establishes the corner in tunnel cable laying route.
As shown in fig. 1 and 2, a construction method of an installation structure for laying a cable in a narrow space includes the steps of:
s1, equipment installation: according to the design requirement of cable laying, mounting the rolling and lifting device 1 and the guide device 2 along a cable laying path, and mounting the traction device 3 at the end point of the cable laying path;
s2, cable laying: erecting and fixing a cable reel at the starting point of a cable laying path, connecting one end of a steel wire rope with the starting end of the cable, and connecting the other end of the steel wire rope with a traction device 3 after penetrating through a rolling and lifting device 1 and a guide device 2; starting a traction device 3 to pull the cable to advance along the laying path until the cable penetrates out;
s3, repeating construction: cabling is carried out one by one according to the operation of S2 until all cables penetrate out;
s4, cable lifting: after the cables are laid, an operator enters the tunnel, the cables on the rolling rod structure 11 are hoisted to the wall support through the hoisting structure 12, and construction is sequentially carried out from the starting point of the cable laying path until all the cables are hoisted to the wall support;
s5, equipment dismantling: and (3) dismantling the rolling and lifting device 1, the guide device 2 and the traction device 3 in sequence, and transferring to the next working site for construction.
Further, in step S4, the specific construction method for hoisting the cable is as follows:
when the cable is constructed, a plurality of groups of operators perform construction together, so that the cable lifting difficulty is effectively reduced; and the operator groups the cables along the starting point of the cable laying path to successively perform the cable hoisting construction.
Further, in step S1, the specific construction method for installing the equipment is as follows:
the multi-connection cable pulley and the cable protection pulley are fixed at the starting point of the tunnel cable laying path, a group of rolling and lifting devices 1 are arranged at intervals of 1.5-2m along the cable laying path, two groups of guide pulleys are arranged at the corners of the tunnel cable laying path, a group of multi-connection cable pulleys are arranged at the end point of the tunnel cable laying path, and the cable outlet angle between the multi-connection cable pulleys and the traction device 3 is adjusted to be 30-45 degrees.
According to the cost calculated by laying a cable with the length of 400m once, the invention is adopted to lay the cable, 200 groups of rolling and lifting devices 1, 4-6 groups of guide devices 2 and one traction device 3 are needed, a steel wire rope and other matched construction materials are needed, the equipment cost is 3 thousands in total, 30-50 people are needed, and the construction time for laying once is about 1 hour; the total construction cost is 150 plus 200 workers, and the construction time for single laying is 3-4 hours; compared with full-manual construction, the construction method has the advantages that the equipment cost can be recovered within 2-3 days, and the construction efficiency is improved by 2-3 times.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (10)
1. A mounting structure for laying cables in a narrow space is characterized by comprising a rolling and lifting device (1), a guiding device (2) and a traction device (3), wherein the rolling and lifting device (1) is arranged on a drainage ditch of a tunnel cable laying path at intervals, the guiding device (2) is arranged at the starting point and the corner of the tunnel cable laying path, the traction device (3) is arranged at the terminal point of the tunnel cable laying path, cables penetrate through the rolling and lifting device (1) and the guiding device (2), and the starting ends of the cables are connected to the traction device (3);
the rolling and hoisting device (1) comprises a rolling rod structure (11) and a hoisting structure (12), wherein the hoisting structure (12) is arranged on the rolling rod structure (11); the rolling rod structure (11) comprises two rolling rods (111) and two rolling rod seats, the two rolling rod seats are symmetrically arranged and fixedly connected to the drainage ditch, and the rolling rods (111) are arranged between the two rolling rod seats; the rolling bar seats comprise vertical plates (112), bearing groups (113) and a base (114), the vertical plates (112) are vertically arranged on the base (114), the bearing groups (113) are arranged on the inner sides of the vertical plates (112), and two ends of the rolling bar (111) are respectively positioned on the bearing groups (113) of the two rolling bar seats; the two rolling rod seats are connected through a connecting rod (115).
2. A mounting structure for laying a cable in a narrow space according to claim 1, wherein: hoisting structure (12) are including pole setting seat (121), pole setting (122), horizontal pole (123), assembly pulley and lifting rope, establish on base (114) pole setting seat (121), pole setting (122) can be dismantled and connect on pole setting seat (121), the top at two pole setting (122) is established on horizontal pole (123), the assembly pulley is established on horizontal pole (123), the lifting rope is established on the assembly pulley, and lifting rope one end is connected on the cable, and the other end is in free state.
3. A mounting structure for laying a cable in a narrow space according to claim 1, wherein: the vertical plate (112) is provided with a mounting hole, the bearing group (113) is positioned below the mounting hole, the bearing group (113) comprises two bearings which are arranged at the same height, the end part of the rolling rod (111) is erected on the bearings and positioned between the two bearings, and the end part of the rolling rod (111) extends into the mounting hole of the vertical plate (112).
4. A cable installation structure according to claim 2, wherein: the vertical rod seat (121) is positioned on the outer side of the vertical plate (112), and the top of the vertical rod seat (121) is positioned on the outer side of the end part of the rolling rod (111).
5. A mounting structure for laying a cable in a narrow space according to claim 1, wherein: two ends of the connecting rods (115) are respectively connected to the two vertical plates (112), and the number of the connecting rods (115) is three and the connecting rods are distributed in a triangular shape.
6. A mounting structure for laying a cable in a narrow space according to claim 1, wherein: the handle is arranged on the vertical plate (112) and is welded and connected to the top of the vertical plate (112).
7. A mounting structure for laying a cable in a narrow space according to claim 1, wherein: the periphery of a bearing of the bearing group (113) is tangent to the periphery of a mounting hole on the vertical plate (112).
8. A mounting structure for laying a cable in a narrow space according to claim 1, wherein: guider (2) are including leading pulley, many union cable pulleys and cable protection pulley, the starting point at tunnel cable laying route is established to cable protection pulley, many union cable pulleys establish the starting point and the terminal point in tunnel cable laying route, leading pulley establishes the corner in tunnel cable laying route.
9. A method of constructing an installation structure for laying cables in a narrow space according to any one of claims 1 to 8, comprising the steps of:
s1, equipment installation: according to the design requirement of cable laying, mounting a rolling and lifting device (1) and a guide device (2) along a cable laying path, and mounting a traction device (3) at the end point of the cable laying path;
s2, cable laying: erecting and fixing a cable reel at the starting point of a cable laying path, connecting one end of a steel wire rope with the cable starting end, and connecting the other end of the steel wire rope with a traction device (3) after penetrating through a rolling and lifting device (1) and a guide device (2); starting a traction device (3) to pull the cable to advance along the laying path until the cable penetrates out;
s3, repeating construction: cabling is carried out one by one according to the operation of S2 until all cables penetrate out;
s4, cable lifting: after the cables are laid, an operator enters the tunnel, the cables on the rolling rod structure (11) are hoisted to the wall support through the hoisting structure (12), and construction is sequentially carried out from the starting point of the cable laying path until all the cables are hoisted to the wall support;
s5, equipment dismantling: and (3) dismantling the rolling and lifting device (1), the guide device (2) and the traction device (3) in sequence, and transferring to the next working place for construction.
10. A method of constructing an installation structure for laying a cable in a narrow space according to claim 9, wherein: in step S4, the specific construction method for hoisting the cable is as follows:
an operator fixes one end of the lifting rope on the cable, pulls the other end of the lifting rope, and lifts and places the cable on the wall bracket; and the operator sequentially carries out hoisting construction along the starting point of the cable laying path.
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| CN202110380253.6A CN112952661B (en) | 2021-04-08 | 2021-04-08 | Installation structure and construction method for laying cable in narrow space |
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| CN202110380253.6A CN112952661B (en) | 2021-04-08 | 2021-04-08 | Installation structure and construction method for laying cable in narrow space |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113471870A (en) * | 2021-07-20 | 2021-10-01 | 中国二十冶集团有限公司 | Method for replacing bridge in cable tunnel on line |
| CN113594969A (en) * | 2021-08-24 | 2021-11-02 | 中铁九局集团电务工程有限公司 | Cable laying device |
| CN114927988A (en) * | 2022-05-19 | 2022-08-19 | 中铁武汉电气化局集团有限公司城市建设分公司 | Basement power cable laying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113471870A (en) * | 2021-07-20 | 2021-10-01 | 中国二十冶集团有限公司 | Method for replacing bridge in cable tunnel on line |
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| CN112952661B (en) | 2021-12-21 |
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