阅读说明：本技术 龙门吊动力电缆输送结构及输送方法 (Gantry crane power cable conveying structure and method ) 是由 滕平强 吴子山 刘宏 罗文富 于 2021-08-05 设计创作，主要内容包括：本发明门吊动力电缆输送结构及输送方法,属于电缆输送领域,目的是避免动力电缆外露,保护动力电缆。包括电缆沟槽,设置有用于封堵电缆沟槽顶部开口的弹性盖板；沿着电缆沟槽的纵向延伸方向,所述弹性盖板由电缆沟槽的一端延伸至另一端；沿着电缆沟槽的横向,所述弹性盖板包括固结段和封口段两部分,所述封口段与电缆沟槽相对应,并自由盖设与电缆沟槽的开口上,所述固结段经锚固件锚固于设置电缆沟槽的地层结构。通过弹性盖板盖设在电缆沟槽上,对敷设于电缆沟槽内的电缆起到保护作用。通过弹性盖板的固结段固定于电缆沟槽的地层结构,封口段自由盖设与电缆沟槽,便于弹性盖板掀开。(The invention discloses a gantry 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 plugging an opening at the top of the cable groove; the elastic cover plate extends from one end of the cable groove to the other end along the longitudinal extension direction of the cable groove; along the horizontal of cable duct, the elasticity apron includes consolidation section and seal section two parts, the seal section corresponds with the cable duct to freely cover establish with the opening of cable duct, the consolidation section is through the anchor assembly anchor in the stratum structure that sets up the cable duct. The elastic cover plate covers the cable groove to protect the cable laid in the cable groove. The consolidation section of the elastic cover plate is fixed on the stratum structure of the cable groove, and the sealing section is freely covered with the cable groove, so that the elastic cover plate can be conveniently opened.)

1. Portal crane power cable transport structure, including cable trench (1), its characterized in that: an elastic cover plate (2) for plugging the top opening of the cable groove (1) is arranged; the elastic cover plate (2) extends from one end of the cable groove (1) to the other end along the longitudinal extension direction of the cable groove (1); along the horizontal direction of cable trench (1), elasticity apron (2) include consolidation section (2A) and seal section (2B) two parts, seal section (2B) correspond with cable trench (1) to the free lid is established with the opening of cable trench (1), consolidation section (2A) through the anchor assembly anchor in the stratum structure that sets up cable trench (1).

2. The gantry crane power cable conveying structure of claim 1, wherein: the top surface of the consolidation section (2A) of the elastic cover plate (2) is in a sawtooth shape along the transverse direction of the elastic cover plate (2).

3. The gantry crane power cable conveying structure of claim 1 or 2, wherein: the anchoring piece comprises a fastening rivet (4), an embedded steel pipe (5) embedded in the 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 of the reinforcing rib extends to the deep part of the stratum; and 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. The gantry crane power cable conveying structure of claim 3, wherein: the elastic cover plate (2) is a rubber product;

a groove (2C) which is sunken downwards is arranged on 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 a fastening rivet (4) penetrates through the pressing strip (3) and is anchored on the embedded steel pipe (5).

5. The gantry crane power cable conveying structure of claim 1 or 2, wherein: comprises a cable guide device (7) which plays a role in guiding a power cable in the traction process of the power cable and an opening device (8) which automatically opens an elastic cover plate (2) in the traction process of the power cable;

the opening device (8) comprises a side pulley group (8B) and a connecting frame (8A);

the side pulley set (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 peripheral surface of each side pulley (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 bracket (8B1), and the top end is connected with the cable guide device (7).

6. The gantry crane power cable conveying structure of claim 4, wherein: the cable guide device (7) comprises a guide bracket (7A) arranged on a gantry crane (10); along the longitudinal direction, a group of main rollers (7B) are arranged on the front side of the guide support (7A) to form a first cable guide path, a group of main rollers (7B) are arranged on the rear side of the guide support (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; 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).

7. The gantry crane power cable conveying structure of claim 6, wherein: 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 a cable passing area is formed by the distance between the two limiting rollers (9C); the top end of the limiting rod (9A) is hinged with the guide bracket (7A), and the bottom end is connected with the middle part of the connecting rod (9B).

8. The gantry crane power cable conveying structure of claim 7, wherein: the guide bracket (7A) comprises a cover plate (7A1) and a back plate (7A 2); the main roller (7B) is arranged between the cover plate (7A1) and the back plate (7A 2);

the limiting rod (9A) and the connecting rod (9B) are positioned on the outer side of the cover plate (7A1), a window (7A3) penetrating through the cover plate (7A1) is formed in the cover plate (7A1), and the limiting roller (9C) penetrates through the window (7A3) and is positioned between the cover plate (7A1) and the back plate (7A 2);

the side pulley set (8B) is arranged on the outer side of the cover plate (7A1) through a connecting frame (8A).

9. The gantry crane power cable conveying method adopting the gantry crane power cable conveying structure of claim 7, characterized in that:

firstly, a gantry crane (10) is pushed to the starting end of a cable groove (1), and a side pulley set (8B) abuts against the bottom surface of a sealing section (2B) of an elastic cover plate (2);

after the cable (11) is drawn out, the outlet end of the cable (11) is in close contact with one main roller (7B) of the two main rollers (7B), and the cable (11) passes through a cable passing area between the two limiting rollers (9C) and is tightly attached to the limiting roller (9C) on the same side with the main rollers (7B);

then, the gantry crane (10) is moved along the longitudinal direction of the cable trench (1) to convey the cable (11).

10. The gantry crane power cable conveying method of claim 9, wherein: the main roller (7B) and the limiting roller (9C) are aligned with the center of the cable groove (1).

Technical Field

The invention belongs to the field of cable conveying, and particularly relates to a gantry crane power cable conveying structure and a gantry crane power cable conveying method.

Background

An 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 traveling path of the gantry crane. When the power cable is conveyed or recovered by the gantry crane, a track is arranged beside the cable trench along the extending direction of the cable trench, and the gantry crane conveys the power cable along the cable trench during the movement of the gantry crane along the track. At present, in a cable groove, a power cable is arranged in an exposed mode, and the phenomenon that the work of a gantry crane is interrupted due to the fact that the power cable is damaged frequently occurs. Meanwhile, the cable is easy to twist and die in the process of traction or playback conveying, needs manual dredging, and cannot guarantee smooth conveying or playback work of the power cable.

Disclosure of Invention

The invention aims to solve the problem that a power cable of a gantry crane is exposed during conveying or recycling, and provides a power cable arranging device and a cable arranging method for the gantry crane, which are used for preventing the power cable from being exposed and protecting the power cable.

The technical scheme adopted by the invention is as follows: the gantry crane power cable conveying structure comprises a cable groove and an elastic cover plate, wherein the elastic cover plate is used for plugging an opening at the top of the cable groove; the elastic cover plate extends from one end of the cable groove to the other end along the longitudinal extension direction of the cable groove; along the horizontal of cable duct, the elasticity apron includes consolidation section and seal section two parts, the seal section corresponds with the cable duct to freely cover establish with the opening of cable duct, the consolidation section is through the anchor assembly anchor in the stratum structure that sets up the cable duct.

Furthermore, 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 part 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 deep part of the stratum; and 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;

and a groove which is sunken downwards is arranged on the top surface of the consolidation section of the elastic cover plate, a pressing strip is arranged in the groove, and the fastening rivet penetrates through the pressing strip and is anchored on the embedded steel pipe.

Further, the device comprises a cable guide device which plays a role in guiding the power cable in the traction process of the power cable and an opening device which automatically opens the elastic cover plate in the traction process of the power cable;

the opening device comprises a side pulley group and a connecting frame;

the side pulley set comprises a pulley support extending longitudinally, a row of side pulleys are uniformly arranged along the extending direction of the pulley support, and the peripheral surface of each side pulley is 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 guide 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 first cable guide path, a group of main rollers are arranged on the rear side of the guide bracket 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; and a limiting mechanism for limiting the position of the cable on the main roller is arranged on the guide bracket.

Furthermore, 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 the limiting roller is parallel to the main roller, and a cable passing area is formed by the distance between the two limiting rollers; the top end of the limiting rod is hinged with the guide support, and the bottom end of the limiting rod is connected with the middle part of the connecting rod.

Further, the guide bracket comprises a front plate and a back plate; the main roller is arranged between the panel and the back plate;

the limiting rod and the connecting rod are positioned on the outer side of the panel, a window penetrating through the panel is arranged on the panel, and the limiting roller penetrates through the window and is positioned between the panel and the back plate;

the side pulley group is arranged on the outer side of the panel through the connecting frame.

A method for conveying a power cable of a gantry crane,

firstly, pushing the gantry crane to the starting end of the cable groove, wherein the side pulley block abuts against the bottom surface of the sealing section of the elastic cover plate;

after the cable is drawn out, the outlet end of the cable is in close contact with one of the two main rollers, and the cable passes through a cable passing area between the two limiting rollers and is tightly attached to the limiting roller on the same side as the main rollers;

then, the gantry crane is moved along the longitudinal direction of the cable groove to convey the cable.

Furthermore, the main roller and the limiting roller are aligned with the center of the cable groove.

The invention has the beneficial effects that: 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 groove, and the sealing section is freely covered with the cable groove, so that the elastic cover plate can be conveniently opened.

Through the arrangement of the opening device consisting of the cable guide device, the side pulley group and the connecting frame, the elastic cover plate is automatically lifted in the cable conveying process, the process of lifting the elastic cover plate is not required to be additionally added, and the operation is simple and easy.

Through the arrangement of the limiting rod, the limiting idler wheel and the main idler wheel, the conveying path of the cable is limited, and the smooth conveying of the cable is guaranteed.

Drawings

FIG. 1 is a schematic view of the installation of an elastic cover plate;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a perspective view of the resilient cover;

FIG. 4 is a front view of the cable guide and opener assembly;

FIG. 5 is a left side view of FIG. 4;

fig. 6 is a left side view of a gantry crane power cable conveying 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 guide device 7, a guide 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 side sliding wheel set 8B, a pulley support 8B1, a side sliding wheel 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 described below with reference to the following figures and examples:

as shown in fig. 1, 2 and 3, the power cable conveying structure of the gantry crane comprises a cable trench 1 and an elastic cover plate 2 for plugging an opening at the top of the cable trench 1; the elastic cover plate 2 extends from one end of the cable groove 1 to the other end along the longitudinal extension direction of the cable groove 1; along the horizontal direction of cable duct 1, elasticity apron 2 includes consolidation section 2A and seal section 2B two parts, seal section 2B corresponds with cable duct 1 to freely cover and establish on the opening with cable duct 1, consolidation section 2A is through the anchor assembly anchor in the stratum structure that sets up cable duct 1.

According to the power cable conveying structure of the gantry crane, 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 damage to the cable 11 is reduced.

Typically, the cable channel 1 is cast of concrete, and has a depth of about 300mm and a width 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 shape after the action of the external force disappears. The consolidation section 2A of the elastic cover plate 2 is fixed on the stratum structure, and the sealing section 2B is freely covered on the opening of the cable groove 1, so that the elastic cover plate 2 can be lifted to expose the cable groove 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 automatically cover the opening of the cable groove 1.

In order to facilitate the bending of the elastic cover plate 2 and thus the opening section 2B, the top surface of the fixed section 2A of the elastic cover plate 2 is zigzag along the transverse direction of the elastic cover plate 2.

The bottom surface of the elastic cover plate 2 is the surface which is contacted with the ground structure of the cable groove 1, and the top surface of the elastic cover plate is opposite to the bottom surface.

In order to avoid connection looseness 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 the stratum structure and a reinforcing rib 6, 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 deep part of the stratum; and 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 connection stability, a groove 2C which is sunken downwards is arranged on 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 penetrates through the pressing strip 3 and is anchored on the embedded steel pipe 5.

In order to synchronously and automatically open the elastic cover plate 2 along with the retraction of the cable 11 in the retraction process of the cable 11,

preferably, as shown in fig. 4, 5 or 4 and 6, the cable guide device 7 for guiding the power cable during the power cable transportation process and the opening device 8 for automatically opening the elastic cover plate 2 during the power cable transportation process are included;

the opening device 8 comprises a side pulley group 8B and a connecting frame 8A;

the side pulley set 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 peripheral surface of the side pulley 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 bracket 8B1, and the top end is connected with the cable guide device 7.

The cable guide device 7 plays a role in guiding the cable 11, and smooth winding and unwinding of the cable 11 are guaranteed. The opening device 8 automatically opens the elastic cover plate 2 along with the operation of the gantry crane along the cable trench 1 in the process of cable reeling and unreeling. The connecting bracket 8A of the opening device 8 is used to connect the side pulley block 8B to the cable guide 7. The side pulley group 8B is formed by attaching a row of side pulleys 8B2 to a pulley bracket 8B 1. The outer peripheral surface of the side pulley 8B2 is in rolling engagement with the bottom surface of the sealing section 2B of the elastic cover 2, i.e., the side pulley 8B2 can roll along the longitudinal direction of the elastic cover 2 at the bottom surface of the sealing section 2B. As the cable guide 7 is moved longitudinally along the cable duct 1, the side pulley 8B follows the cable guide 7, and during the movement, the side pulley 8B2 rolls on the bottom surface of the closing section 2B, and the friction is low. Due to the arrangement of the structure, in the process that the elastic cover plate 2 is lifted along with the winding and unwinding of the cable, the elastic cover plate 2 is completely contacted with the side pulley 8B2, and the fluency in the lifting process of the elastic cover plate 2 is ensured.

Preferably, the cable guide device 7 comprises a guide bracket 7A mounted on the gantry crane 10; along the longitudinal direction, a group of main rollers 7B are arranged on the front side of the guide support 7A to form a first cable guide path, a group of main rollers 7B are arranged on the rear side of the guide support 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; 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.

And two groups of main rollers 7B are arranged, so that the fluency of the cable 11 in the conveying process is ensured. Two groups of main rollers 7B are arranged to form a first cable guide path and a second cable guide path respectively, the two cable guide paths are matched to finish the transmission or playback work of the cable, namely the first cable guide path is used for the transmission work of the cable, and the second cable guide path is used for the playback work of the cable.

If the cable 11 is drawn out from the cable trench and then directly contacts with the main roller 7B, the cable 11 is easy to swing along the axial direction of the main roller 7B in the conveying process, so that the cable 11 is automatically recovered irregularly on a cable reel, and the cable is stranded. The position restricting mechanism 9 is used to restrict the position of the cable 11 and to convey the cable 11 along a predetermined path.

Such a stop mechanism 9 can take various forms, such as: a containing groove for containing the cable 11 may be provided on the main roller 7B to define the position of the cable 11, 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, 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 distance between the two limiting rollers 9C forms a cable passing area; the top end of the limiting rod 9A is hinged with the guide bracket 7A, and the bottom end is connected with the middle part of the connecting rod 9B.

In the vertical plane, the stop lever 9A is located between the first cable guide path and the second cable guide path. The cable 11 passes through the cable between two spacing gyro wheels 9C and passes through the district and one of them spacing gyro wheel 9C in close contact with, and two spacing gyro wheels 9C articulate on guide bracket 7A through gag lever post 9A, along with the transport left and right sides swing back and forth of cable 11, inject cable 11 in a certain position through cable 11 antitorque twist power to accomplish the smooth transportation of cable. The left and right sides are shown in fig. 4.

The guide bracket 7A may be a frame body assembled by using rod members, and for convenience of manufacturing, preferably, the guide bracket 7A includes a front plate 7A1 and a back plate 7A 2.

The main roller 7B is sleeved on the roller by a stainless steel roller, the roller is positioned between the panel 7A1 and the back plate 7A2, one end of the roller is connected with the panel 7A1, the other end of the roller is connected with the back plate 7A2, and the conveying work of the cable 11 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 receiving area, and the other side is the outer side of the panel 7a 1. In order to facilitate the installation of the limiting rod 9A and avoid the interference of the limiting rod 9A with the cable 11, it is preferable that the limiting rod 9A and the connecting rod 9B are located outside the panel 7a1, a window 7A3 penetrating through the panel 7a1 is arranged on the panel 7a1, and the limiting roller 9C penetrates through the window 7A3 and is located between the panel 7a1 and the back plate 7a 2.

The side pulley group 8B is mounted on the outer side of the panel 7a1 via a link 8A.

A method for conveying a power cable of a gantry crane,

firstly, pushing a gantry crane 10 to the starting end of a cable groove 1, wherein a side pulley group 8B abuts against the bottom surface of a sealing section 2B of an elastic cover plate 2;

after the cable end is pulled out, the cable end is attached to one main roller 7B of the two main rollers 7B, passes through a cable passing area between the two limiting rollers 9C and is closely attached to the limiting roller 9C on the same side as the main rollers 7B;

then, the gantry crane 10 is moved along the longitudinal direction of the cable trench 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 the cable conveying, and no additional process is added. And the phenomenon that the cable 11 is twisted to be dead can be effectively avoided in the conveying process.

In order to avoid friction and abrasion of the cable 11 against the groove wall of the cable groove 1 during transportation or playback, it is preferable that the main roller 7B and the limit roller 9C are aligned with the center of the cable groove 1.