CN113582019B - Portal crane power cable conveying structure and conveying method - Google Patents

Portal crane power cable conveying structure and conveying method Download PDF

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Publication number
CN113582019B
CN113582019B CN202110896287.0A CN202110896287A CN113582019B CN 113582019 B CN113582019 B CN 113582019B CN 202110896287 A CN202110896287 A CN 202110896287A CN 113582019 B CN113582019 B CN 113582019B
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CN
China
Prior art keywords
cable
cover plate
elastic cover
groove
gantry crane
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Active
Application number
CN202110896287.0A
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Chinese (zh)
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CN113582019A (en
Inventor
滕平强
吴子山
刘宏
罗文富
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SEPCO Electric Power Construction Co Ltd
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SEPCO Electric Power Construction Co Ltd
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Priority to CN202110896287.0A priority Critical patent/CN113582019B/en
Publication of CN113582019A publication Critical patent/CN113582019A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/12Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/02Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00Installations of electric cables or lines in or on the ground or water
    • H02G9/02Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • H02G9/025Coverings therefor, e.g. tile

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Electric Cable Installation (AREA)

Abstract

The invention relates to a portal crane power cable conveying structure and a conveying method, belongs to the field of cable conveying, and aims to prevent a power cable from being exposed and protect the power cable. The cable groove is provided with an elastic cover plate for blocking the top opening of the cable groove; the elastic cover plate extends from one end of the cable groove to the other end along the longitudinal extending direction of the cable groove; along the transverse direction of the cable groove, the elastic cover plate comprises a consolidation section and a sealing section, the sealing section corresponds to the cable groove and is freely covered on an opening of the cable groove, and the consolidation section is anchored to a stratum structure provided with the cable groove through an anchoring piece. The elastic cover plate is covered on the cable groove, so that the cable laid in the cable groove is protected. The consolidation section of the elastic cover plate is fixed on the stratum structure of the cable trench, and the sealing section is freely covered with the cable trench, so that the elastic cover plate is convenient to open.

Description

Portal crane power cable conveying structure and conveying method
Technical Field
The invention belongs to the field of cable conveying, and particularly relates to a gantry crane power cable conveying structure and a conveying method.
Background
The outdoor gantry crane is common equipment for various large-scale combined projects, and a power cable matched with the gantry crane is conveyed or recovered along the travelling path of the gantry crane. When the power cable is conveyed or recovered through the gantry crane, a track is arranged beside the cable groove along the extending direction of the cable groove, and the power cable is conveyed along the cable groove in the process that the gantry crane moves along the track. At present, in a cable groove, a power cable is exposed, and the phenomenon that the operation of a gantry crane is interrupted due to the damage of the power cable frequently occurs. Meanwhile, the cable is easy to be stranded in the traction or playback conveying process, and needs to be manually dredged, so that smooth conveying or playback work of the power cable cannot be guaranteed.
Disclosure of Invention
The invention aims to solve the problem of exposure during conveying or recycling of a power cable of a gantry crane, and provides a power cable arranging device and a power cable arranging method for the gantry crane, which can avoid exposure of the power cable and protect the power cable.
The technical scheme adopted by the invention is as follows: the portal crane power cable conveying structure comprises a cable groove, wherein an elastic cover plate for blocking an opening at the top of the cable groove is arranged; the elastic cover plate extends from one end of the cable groove to the other end along the longitudinal extending direction of the cable groove; along the transverse direction of the cable groove, the elastic cover plate comprises a consolidation section and a sealing section, the sealing section corresponds to the cable groove and is freely covered on an opening of the cable groove, and the consolidation section is anchored to a stratum structure provided with the cable groove through an anchoring piece.
Further, the top surface of the consolidation section of the elastic cover plate is in a sawtooth shape along the transverse direction of the elastic cover plate.
Further, the anchoring piece comprises a fastening rivet, an embedded steel pipe embedded in the stratum structure and a reinforcing rib, the top end of the reinforcing rib is fixedly connected with the embedded steel pipe, and the bottom end of the reinforcing rib extends to the depth of the stratum; the consolidation section of the elastic cover plate is fixedly connected with the embedded steel pipe through a fastening rivet.
Further, the elastic cover plate is a rubber product;
the top surface of the consolidation section of the elastic cover plate is provided with a concave groove which is downwards concave, a pressing strip is arranged in the groove, and the fastening rivet penetrates through the pressing strip and is anchored to the embedded steel pipe.
Further, the device comprises a cable guiding device which plays a guiding role on the power cable in the power cable traction process and an opening device which automatically lifts the elastic cover plate in the power cable traction process;
the opening device comprises a side pulley group and a connecting frame;
the side pulley group comprises a pulley bracket extending longitudinally, a row of side pulleys are uniformly arranged along the extending direction of the pulley bracket, and the outer peripheral surfaces of the side pulleys are in rolling fit with the bottom surface of the sealing section of the elastic cover plate; the bottom end of the connecting frame is connected with the pulley bracket, and the top end of the connecting frame is connected with the cable guiding device.
Further, the cable guide device comprises a guide bracket arranged on the gantry crane; a group of main rollers are arranged on the front side of the guide bracket along the longitudinal direction to form a cable guide path I, a group of main rollers are arranged on the rear side of the guide bracket to form a cable guide path II, and a cable accommodating area is formed between the cable guide path I and the cable guide path II; and a limiting mechanism for limiting the position of the cable on the main roller is arranged on the guide bracket.
Further, the limiting mechanism comprises a limiting rod and a connecting rod, two ends of the connecting rod are respectively provided with a limiting roller, the axis of each limiting roller is parallel to the main roller, and a cable passing area is formed by the interval between the two limiting rollers; the top end of the limiting rod is hinged to the guide support, and the bottom end of the limiting rod is connected with the middle of the connecting rod.
Further, the guide bracket comprises a panel and a back plate; the main roller is arranged between the panel and the backboard;
the limiting rod and the connecting rod are positioned at the outer side of the panel, a window penetrating through the panel is arranged on the panel, and the limiting roller passes through the window and is positioned between the panel and the backboard;
the side pulley group is installed in the outside of panel through the link.
A power cable conveying method for a gantry crane,
firstly, pushing a gantry crane to the initial end of a cable groove, and enabling a side pulley group to abut against the bottom surface of a sealing section of an elastic cover plate;
after the cable is pulled out, the cable outlet end is closely contacted with one of the two groups of main rollers, and the cable passes through a cable passing area between the two limiting rollers to be closely attached to the limiting rollers on the same side as the group of main rollers;
the gantry crane is then moved along the longitudinal direction of the cable trough to transport the cable.
Further, the main roller and the limit roller are aligned with the center of the cable trench.
The beneficial effects of the invention are as follows: according to the invention, the elastic cover plate is covered on the cable groove, so that the cable laid in the cable groove is protected.
The consolidation section of the elastic cover plate is fixed on the stratum structure of the cable trench, and the sealing section is freely covered with the cable trench, so that the elastic cover plate is convenient to open.
Through the arrangement of the cable guide device and the opening device formed by the side pulley group and the connecting frame, the elastic cover plate is automatically lifted in the cable conveying process, the procedure of lifting the elastic cover plate is not required to be additionally added, and the operation is simple and easy.
Through the setting of gag lever post, spacing gyro wheel and main gyro wheel, limited the delivery path of cable, guaranteed that the cable carries smoothly.
Drawings
FIG. 1 is a schematic view of an elastic cover plate installation;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a perspective view of an elastomeric cover panel;
fig. 4 is a front view of the cable guide device and opening device mated;
FIG. 5 is a left side view of FIG. 4;
fig. 6 is a left side view of the gantry crane power cable transport structure.
In the figure, a cable groove 1, an elastic cover plate 2, a consolidation section 2A, a sealing section 2B, a groove 2C, a pressing strip 3, a fastening rivet 4, an embedded steel pipe 5, a reinforcing rib 6, a cable guiding device 7, a guiding support 7A, a panel 7A1, a back plate 7A2, a window 7A3, a main roller 7B, an opening device 8, a connecting frame 8A, a sideslip wheel group 8B, a pulley support 8B1, a side pulley 8B2, a limiting mechanism 9, a limiting rod 9A, a connecting rod 9B, a limiting roller 9C, a gantry crane 10 and a cable 11.
Detailed Description
The invention is further illustrated in the following figures and examples, in which:
the portal crane power cable conveying structure comprises a cable groove 1, as shown in fig. 1, 2 and 3, and an elastic cover plate 2 for blocking the top opening of the cable groove 1 is arranged; the elastic cover plate 2 extends from one end to the other end of the cable groove 1 along the longitudinal extending direction of the cable groove 1; along the transverse direction of the cable trench 1, the elastic cover plate 2 comprises a consolidation section 2A and a sealing section 2B, the sealing section 2B corresponds to the cable trench 1 and is freely covered on an opening of the cable trench 1, and the consolidation section 2A is anchored to a stratum structure provided with the cable trench 1 through an anchoring piece.
According to the gantry crane power cable conveying structure disclosed by the invention, the elastic cover plate 2 is arranged to cover the cable groove 1, so that the cable 11 laid in the cable groove 1 is protected, and the risk of damaging the cable 11 is reduced.
Typically, the cable channel 1 is formed by concrete casting and has a depth of about 300mm and a width of greater than 60mm of the diameter of the cable 11. The elastic cover plate 2 has elasticity, can be bent under the action of external force, and can be restored to the original state after the action of external force is eliminated. The consolidation section 2A of the elastic cover plate 2 is fixed on a stratum structure, and the sealing section 2B is freely covered on an opening of the cable trench 1, so that the elastic cover plate 2 can be lifted to expose the cable trench 1, and after the external force for lifting the elastic cover plate 2 disappears, the sealing section 2B of the elastic cover plate 2 can be automatically covered on the opening of the cable trench 1.
In order to facilitate the bending of the elastic cover plate 2 and thus the opening and closing section 2B, the top surface of the consolidation section 2A of the elastic cover plate 2 is serrated along the transverse direction of the elastic cover plate 2.
The bottom surface of the elastic cover plate 2 is the surface contacted with the stratum structure of the cable trench 1, and the opposite surface is the top surface.
In order to avoid loosening of the connection of the consolidation section 2A with larger tension in the lifting process of the sealing section 2B of the elastic cover plate 2, the anchoring piece comprises a fastening rivet 4, an embedded steel pipe 5 embedded in a stratum structure and a reinforcing rib 6, wherein the top end of the reinforcing rib 6 is fixedly connected with the embedded steel pipe 5, and the bottom end extends to the depth of the stratum; the consolidation section 2A of the elastic cover plate 2 is fixedly connected with the embedded steel pipe 5 through a fastening rivet 4.
The elastic cover plate 2 is a rubber product. In order to increase the pressure between the fastening rivet 4 and the elastic cover plate 2 and improve the stability of connection, a downward concave groove 2C is formed in the top surface of the consolidation section 2A of the elastic cover plate 2, a pressing strip 3 is arranged in the groove 2C, and the fastening rivet 4 is anchored to the embedded steel pipe 5 through the pressing strip 3.
In order to automatically lift the elastic cover plate 2 synchronously along with the retraction of the cable 11 during the retraction of the cable 11,
preferably, as shown in fig. 4, 5 or 4 and 6, the device comprises a cable guiding device 7 for guiding the power cable in the process of conveying the power cable and an opening device 8 for automatically opening the elastic cover plate 2 in the process of conveying the power cable;
the opening device 8 comprises a sideslip wheel group 8B and a connecting frame 8A;
the side pulley group 8B comprises a pulley bracket 8B1 extending longitudinally, a row of side pulleys 8B2 are uniformly arranged along the extending direction of the pulley bracket 8B1, and the outer peripheral surface of the side pulleys 8B2 is in rolling fit with the bottom surface of the sealing section 2B of the elastic cover plate 2; the bottom end of the connecting frame 8A is connected with the pulley support 8B1, and the top end is connected with the cable guiding device 7.
The cable guide device 7 plays a guiding role on the cable 11, and ensures smooth winding and unwinding of the cable 11. The opening device 8 automatically lifts the elastic cover plate 2 along the cable groove 1 along with the operation of the gantry crane in the cable winding and unwinding process. The connecting frame 8A of the opening device 8 is used for hanging the side pulley group 8B on the cable guiding device 7. The pulley group 8B is formed by a row of side pulleys 8B2 mounted on a pulley bracket 8B 1. The outer circumferential surface of the side pulley 8B2 is in rolling fit with the bottom surface of the seal segment 2B of the elastic cover plate 2, i.e., the side pulley 8B2 can roll on the bottom surface of the seal segment 2B along the longitudinal direction of the elastic cover plate 2. Along with the longitudinal pushing of the cable guide device 7 along the cable trench 1, the side pulley group 8B moves along with the cable guide device 7, and in the moving process, the side pulley 8B2 rolls on the bottom surface of the sealing section 2B, so that the friction force is small. Due to the arrangement of the structure, the elastic cover plate 2 is completely contacted with the side pulley 8B2 in the process of lifting the elastic cover plate 2 along with the winding and unwinding of the cable, so that the smoothness of the elastic cover plate 2 in the lifting process is ensured.
Preferably, the cable guiding device 7 comprises a guiding bracket 7A mounted on the gantry crane 10; a group of main rollers 7B are arranged on the front side of the guide bracket 7A along the longitudinal direction to form a cable guide path I, a group of main rollers 7B are arranged on the rear side of the guide bracket 7A to form a cable guide path II, and a cable accommodating area is formed between the cable guide path I and the cable guide path II; and a limiting mechanism 9 for limiting the position of the cable 11 on the main roller 7B is arranged on the guide bracket 7A.
The arrangement of the two groups of main rollers 7B ensures the smoothness in the conveying process of the cable 11. Two groups of main rollers 7B are arranged to form a first cable guide path and a second cable guide path respectively, and the two cable guide paths are matched to complete the conveying or playback work of the cable, namely the first cable guide path is used for the conveying work of the cable, and the second cable guide path is used for the playback work of the cable.
If the cable 11 is directly contacted with the main roller 7B after being pulled out from the cable trench, the situation of swinging along the axial direction of the main roller 7B easily occurs in the conveying process of the cable 11, so that the cable 11 is automatically recovered irregularly on the cable drum, and the phenomenon of cable death occurs. The stopper mechanism 9 is used to limit the position of the cable 11 so that the cable 11 is conveyed along a predetermined path.
Such a limiting mechanism 9 has various forms, such as: a receiving groove for receiving the cable 11 may be provided on the main roller 7B to define the position of the cable 11, to prevent the cable 11 from swinging axially along the main roller 7B, and so on.
In the invention, the limiting mechanism 9 comprises a limiting rod 9A and a connecting rod 9B, wherein two ends of the connecting rod 9B are respectively provided with a limiting roller 9C, the axis of the limiting roller 9C is parallel to the main roller 7B, and the space between the two limiting rollers 9C forms a cable passing area; the top end of the limiting rod 9A is hinged to the guide bracket 7A, and the bottom end of the limiting rod is connected with the middle of the connecting rod 9B.
In the vertical plane, the stopper rod 9A is located between the first cable guide path and the second cable guide path. The cable 11 passes through the cable passing area between the two limiting rollers 9C and is in close contact with one of the limiting rollers 9C, the two limiting rollers 9C are hinged on the guide bracket 7A through the limiting rod 9A, swing back and forth along with the left and right sides of the conveying of the cable 11, and limit the cable 11 at a certain position through the anti-twisting force of the cable 11, so that the smooth conveying of the cable is completed. The right and left sides shown here are as shown in fig. 4.
The guide bracket 7A may be a frame body assembled by directly adopting a rod, and in order to facilitate processing and manufacturing, it is preferable that the guide bracket 7A includes a panel 7A1 and a back plate 7A2.
The main roller 7B is sleeved on a roller by adopting a stainless steel roller, the roller is positioned between the panel 7A1 and the backboard 7A2, one end of the roller is connected with the panel 7A1, the other end of the roller is connected with the backboard 7A2, and the cable 11 conveying work is completed through the rotation of the roller.
The inner side of the panel 7A1 is the side thereof opposite to the back plate 7A2, which is also the side forming the cable accommodation area, and the other side is the outer side of the panel 7 A1. In order to facilitate the installation of the limit rod 9A, the limit rod 9A is prevented from interfering with the cable 11, preferably, the limit rod 9A and the connecting rod 9B are located at the outer side of the panel 7A1, a window 7A3 penetrating through the panel 7A1 is arranged on the panel 7A1, and the limit roller 9C passes through the window 7A3 and is located between the panel 7A1 and the back plate 7A2.
The side pulley group 8B is mounted on the outer side of the panel 7A1 via a connecting frame 8A.
A power cable conveying method for a gantry crane,
firstly, pushing the gantry crane 10 to the initial end of the cable groove 1, and abutting the side pulley group 8B against the bottom surface of the sealing section 2B of the elastic cover plate 2;
after the cable end is pulled out, one group of main rollers 7B in the two groups of main rollers 7B is attached, and the cable passes through a cable passing area between the two limiting rollers 9C to be attached to the limiting rollers 9C on the same side as the group of main rollers 7B;
then, the gantry crane 10 is moved in the longitudinal direction of the cable duct 1 to convey the cable 11.
According to the gantry crane power cable conveying method disclosed by the invention, the elastic cover plate 2 on the cable groove 1 is automatically opened in time along with cable conveying, so that no additional working procedure is added. And the phenomenon of twisting of the cable 11 can be effectively avoided in the conveying process.
In order to avoid friction with the walls of the cable trench 1 during transport or playback of the cable 11, which would cause wear, it is preferred that the main roller 7B and the limit roller 9C are aligned with the center of the cable trench 1.

Claims (7)

1. Portal crane power cable transport structure, including cable slot (1), its characterized in that: an elastic cover plate (2) for blocking the top opening of the cable groove (1) is arranged; the elastic cover plate (2) extends from one end to the other end of the cable groove (1) along the longitudinal extending direction of the cable groove (1); along the transverse direction of the cable groove (1), the elastic cover plate (2) comprises a consolidation section (2A) and a sealing section (2B), the sealing section (2B) corresponds to the cable groove (1) and is freely covered on an opening of the cable groove (1), and the consolidation section (2A) is anchored on a stratum structure provided with the cable groove (1) through an anchoring piece;
comprises a cable guiding device (7) which plays a guiding role on a power cable in the process of power cable traction and an opening device (8) which automatically lifts an elastic cover plate (2) in the process of power cable traction;
the opening device (8) comprises a side pulley group (8B) and a connecting frame (8A);
the side pulley group (8B) comprises a pulley bracket (8B 1) extending longitudinally, a row of side pulleys (8B 2) are uniformly arranged along the extending direction of the pulley bracket (8B 1), and the peripheral surface of the side pulleys (8B 2) is in rolling fit with the bottom surface of the sealing section (2B) of the elastic cover plate (2); the bottom end of the connecting frame (8A) is connected with the pulley bracket (8B 1), and the top end of the connecting frame is connected with the cable guiding device (7); the cable guiding device (7) comprises a guiding bracket (7A) arranged on the gantry crane (10); a group of main rollers (7B) are arranged on the front side of the guide bracket (7A) along the longitudinal direction to form a first cable guide path, a group of main rollers (7B) are arranged on the rear side of the guide bracket (7A) to form a second cable guide path, and a cable accommodating area is formed between the first cable guide path and the second cable guide path; a limiting mechanism (9) for limiting the position of the cable (11) on the main roller (7B) is arranged on the guide bracket (7A); the limiting mechanism (9) comprises a limiting rod (9A) and a connecting rod (9B), two ends of the connecting rod (9B) are respectively provided with a limiting roller (9C), the axis of the limiting roller (9C) is parallel to the main roller (7B), and the space between the two limiting rollers (9C) forms a cable passing area; the top end of the limiting rod (9A) is hinged to the guide bracket (7A), and the bottom end of the limiting rod is connected with the middle part of the connecting rod (9B).
2. The gantry crane power cable transportation structure of claim 1, wherein: the top surface of the consolidation section (2A) of the elastic cover plate (2) is transversely zigzag along the elastic cover plate (2).
3. The gantry crane power cable transportation structure according to claim 1 or 2, characterized in that: the anchoring piece comprises a fastening rivet (4), an embedded steel pipe (5) and a reinforcing rib (6), wherein the embedded steel pipe (5) is embedded in a stratum structure, the top end of the reinforcing rib (6) is fixedly connected with the embedded steel pipe (5), and the bottom end of the reinforcing rib extends to the depth of the stratum; the consolidation section (2A) of the elastic cover plate (2) is fixedly connected with the embedded steel pipe (5) through a fastening rivet (4).
4. A gantry crane power cable transportation structure as claimed in claim 3, wherein: the elastic cover plate (2) is a rubber product;
the top surface of the consolidation section (2A) of the elastic cover plate (2) is provided with a concave groove (2C) which is concave downwards, a pressing strip (3) is arranged in the concave groove (2C), and the fastening rivet (4) penetrates through the pressing strip (3) and is anchored in the embedded steel pipe (5).
5. The gantry crane power cable transportation structure according to claim 1 or 2, characterized in that: the guide bracket (7A) comprises a cover plate (7A 1) and a back plate (7A 2); the main roller (7B) is arranged between the cover plate (7A 1) and the back plate (7A 2);
the limiting rod (9A) and the connecting rod (9B) are positioned at the outer side of the cover plate (7A 1), a window (7A 3) penetrating through the cover plate (7A 1) is arranged on the cover plate (7A 1), and the limiting roller (9C) passes through the window (7A 3) and is positioned between the cover plate (7A 1) and the back plate (7A 2);
the side pulley group (8B) is arranged on the outer side of the cover plate (7A 1) through the connecting frame (8A).
6. The gantry crane power cable conveying method adopting the gantry crane power cable conveying structure of claim 5 is characterized in that:
firstly, pushing a gantry crane (10) to the starting end of a cable groove (1), and abutting a side pulley group (8B) against the bottom surface of a sealing section (2B) of an elastic cover plate (2);
after the cable (11) is pulled out, the outlet end of the cable (11) is tightly contacted with one group of main rollers (7B) in the two groups of main rollers (7B), and the cable (11) passes through a cable passing area between the two limit rollers (9C) to be tightly attached to the limit rollers (9C) on the same side as the group of main rollers (7B);
then, the gantry crane (10) is moved in the longitudinal direction of the cable duct (1) to convey the cable (11).
7. The gantry crane power cable transportation method of claim 6, wherein: the main roller (7B) and the limit roller (9C) are aligned with the center of the cable groove (1).
CN202110896287.0A 2021-08-05 2021-08-05 Portal crane power cable conveying structure and conveying method Active CN113582019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110896287.0A CN113582019B (en) 2021-08-05 2021-08-05 Portal crane power cable conveying structure and conveying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110896287.0A CN113582019B (en) 2021-08-05 2021-08-05 Portal crane power cable conveying structure and conveying method

Publications (2)

Publication Number Publication Date
CN113582019A CN113582019A (en) 2021-11-02
CN113582019B true CN113582019B (en) 2024-01-30

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CN202110896287.0A Active CN113582019B (en) 2021-08-05 2021-08-05 Portal crane power cable conveying structure and conveying method

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200409401Y1 (en) * 2005-11-22 2006-02-22 동일고무벨트주식회사 Covering Structure of Electrical cable of Portable Crane for Container
CN2934171Y (en) * 2006-07-07 2007-08-15 天津港股份有限公司煤码头分公司 High-voltage cable protecting equipment for portal crane
TW200919884A (en) * 2007-10-24 2009-05-01 Ipalco Bv System for dispensing and retrieving a length of cable into/from a cable channel
KR20180001539U (en) * 2016-11-16 2018-05-25 주식회사 디알비동일 covering device for electrical cable of crane
CN213879237U (en) * 2020-11-10 2021-08-03 厦门海沧新海达集装箱码头有限公司 Cable trench suitable for yard gantry crane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200409401Y1 (en) * 2005-11-22 2006-02-22 동일고무벨트주식회사 Covering Structure of Electrical cable of Portable Crane for Container
CN2934171Y (en) * 2006-07-07 2007-08-15 天津港股份有限公司煤码头分公司 High-voltage cable protecting equipment for portal crane
TW200919884A (en) * 2007-10-24 2009-05-01 Ipalco Bv System for dispensing and retrieving a length of cable into/from a cable channel
KR20180001539U (en) * 2016-11-16 2018-05-25 주식회사 디알비동일 covering device for electrical cable of crane
CN213879237U (en) * 2020-11-10 2021-08-03 厦门海沧新海达集装箱码头有限公司 Cable trench suitable for yard gantry crane

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