Cable pay-off turntable

Abstract

The present invention relates to the technical field of cable retracting and releasing, and specifically to a cable retracting turntable, comprising four supporting feet dispersedly distributed on the same circumference, a bearing seat arranged at the center of the circumference and connected to the supporting feet through ribs, a core shaft rotatably arranged on the bearing seat, and a turntable sleeved on the upper end of the core shaft for installing the cable retracting and releasing disk, wherein a guard ring is arranged on the periphery of the turntable, and the lower ends of the guard ring are respectively connected to the four supporting feet. The present invention improves the efficiency and quality of cable retracting and releasing.

Description

Technical Field

[0001] The invention relates to the technical field of cable retracting and releasing, and in particular to a cable paying-off turntable. Background Art

[0002] Cable laying is the main work in electrical construction, and the speed of laying directly affects the progress of electrical construction. Especially as ships become larger, faster, and more complex, larger diameter cables are needed, so the cable reels are also thicker in diameter and heavier in weight. Whether it is pre-cutting in the field or laying cables on site, construction workers are very laborious and have low production efficiency. Due to the large diameter and heavy tonnage of the cable reels (up to 1T or more), multiple people are required to pull them together during laying.

[0003] In order to facilitate production, it is necessary to design and manufacture a new cable laying and paying-off turntable. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a cable pay-off turntable, which aims to improve the efficiency and quality of cable pay-off. The specific technical solution is as follows:

[0005] A cable pay-off turntable comprises four supporting legs dispersed on the same circumference, a bearing seat arranged at the center of the circumference and connected to the supporting legs through rib plates, a core shaft rotatably arranged on the bearing seat, and a turntable sleeved on the upper end of the core shaft for mounting the cable pay-off turntable, wherein a guard ring is arranged on the periphery of the turntable, and the lower ends of the guard ring are respectively connected to the four supporting legs.

[0006] Preferably, the core shaft is rotatably arranged on the bearing seat through a bearing assembly, and the bearing assembly includes a planar thrust bearing arranged at the upper end portion of the bearing seat and a radial rolling bearing arranged at the lower end portion of the bearing seat.

[0007] In order to facilitate lifting and movement, lifting ears are arranged on the outer sides of the supporting feet.

[0008] As a further improvement of the present invention, the upper end of the core shaft is higher than the turntable, and an expansion air ring is coated on the upper end of the core shaft higher than the turntable. The expansion air ring is used to position the inner hole of the cable retractable disk of different specifications. The expansion air ring is connected to the compressed air source through a pneumatic pipeline and a valve arranged on the pneumatic pipeline; the valve is a three-way ball valve used to realize the inflation and deflation of the expansion air ring.

[0009] Wherein, an internal air circuit is arranged at the central part of the core shaft, one end of the internal air circuit is connected with the inside of the expansion air ring, and the other end of the internal air circuit is connected with the pneumatic pipeline.

[0010] Note that before hoisting the cable retractable drum, adjust the diameter of the expansion air ring by inflating or deflating the pneumatic pipeline according to the size of the inner hole diameter of the cable retractable drum, and then hoist it after confirming that it is adjusted in place.

[0011] Preferably, the expandable balloon can be made into several different specifications and can be replaced when needed. Note that after the replaceable expandable balloon is installed, the threaded hole at the center of the top of the mandrel should be used to axially limit the replaceable expandable balloon using screws and a pressure plate.

[0012] In order to effectively prevent the cables from loosening and shifting on the cable reel when reeling in and out, a further improvement is: a reeling and releasing cable anti-loosening arrangement device is also provided on the turntable, and the reeling and releasing cable anti-loosening arrangement device comprises a torque shaft which is perpendicular to the turntable and rotatably arranged on the edge of the turntable, and an arc-shaped arm connected to the torque shaft, and the cantilever end of the arc-shaped arm is connected to a vertical shaft which is perpendicular to the turntable; a torsion spring is provided between the torque shaft and the turntable, and the torque shaft realizes the elastic pressing of the vertical shaft on the cable on the cable reel through the torque provided by the torsion spring.

[0013] Preferably, a roller is disposed on the vertical shaft, and the roller is rotatably disposed on the vertical shaft via a pair of radial rolling bearings arranged up and down.

[0014] In order to further improve the reliability of cable loosening prevention, the retractable cable loosening prevention and sorting device also includes a flexible sleeve-type water ring sleeved on the outer circle of the drum, the flexible sleeve-type water ring is surrounded by a non-retractable flexible sealing fabric, and the interior of the flexible sleeve-type water ring is filled with incompressible liquid; the top of the drum is also connected to an elastic rubber hollow container, the interior of the elastic rubber hollow container is filled with incompressible liquid and is connected to the interior of the flexible sleeve-type water ring through a connecting pipe.

[0015] Preferably, the incompressible liquid is water.

[0016] As a preferred solution of the present invention, an up and down reciprocating moving device for spirally retracting and releasing the cable and driven by a servo reduction motor is also provided next to the turntable, and a speed measuring gear disc is coaxially connected to the lower end of the turntable, and a speed sensor for detecting the speed of the turntable and aligned with the speed measuring gear disc is provided on the rib plate, and the servo reduction motor and the speed sensor are respectively connected to the MCU controller.

[0017] When the cable is retracted or released, the MCU controller controls the speed of the servo reduction motor according to the speed of the turntable, thereby automatically matching the rotation speed of the cable retractable disk and the movement speed of the up and down reciprocating device to achieve more precise spiral retractable operation.

[0018] The beneficial effects of the present invention are:

[0019] First, the cable pay-off turntable of the present invention has a simple structure and low cost; and when the cable pay-off turntable is in use, only one person is needed at the cable take-up and take-off disk to complete the control of cable pulling and releasing, without the need for cooperation of other personnel, thereby improving work efficiency. On the other hand, the cable pay-off turntable adopts a vertical low-center-of-gravity design, and uses plane bearings and deep-groove ball bearings to achieve the purpose of load-bearing and smooth rotation. The cable take-up and take-off disk sits securely on the turntable, and the cable can be easily released by rotating the cable winding disk during the production process, without the safety hazard of tipping over.

[0020] Secondly, a cable pay-off turntable of the present invention has an expandable air ring coated on the upper end of the core shaft. Before the cable pay-off turntable is hoisted onto the turntable, the diameter of the expandable air ring can be greatly adjusted by deflating or inflating the expandable air ring, thereby being able to adapt to the positioning of the apertures of cable pay-off turntables of different specifications, and having good versatility.

[0021] Thirdly, the cable pay-off turntable of the present invention is also provided with a cable pay-off anti-loosening arrangement device, which can effectively prevent the cable from loosening when it is paid-off.

[0022] Fourthly, the cable pay-off turntable of the present invention can also prevent large-scale loosening of the cable caused by inertial rotation of the cable pay-off turntable because the vertical shaft on the pay-off and take-off anti-loosening arrangement device elastically presses against the cable of the cable pay-off and take-off turntable.

[0023] Fifth, a cable pay-off turntable of the present invention has a flexible sleeve-type water ring on the outer circle of the drum, which cooperates with the elastic rubber hollow container to achieve shape-following changes of the flexible sleeve-type water ring, so that the flexible sleeve-type water ring is in full and close contact with the cable on the cable pay-off turntable, thereby further improving the anti-loosening reliability of the cable when reeling in and out.

[0024] Sixth, in the cable pay-off turntable of the present invention, the flexible sleeve water ring and the up and down reciprocating moving device cooperate with each other when the cable is reeled in, and can play a role of squeezing and pushing the cable in the axial direction of the cable pay-off turntable (see the attached drawing for the specific principle). Figure 8 ), so that the cable is close to the adjacent cables when spirally wound, so that the cable is wound more tightly on the cable reel, thereby further improving the quality of cable winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a cable pay-off turntable of the present invention;

[0026] Figure 2 yes Figure 1 A top view of

[0027] Figure 3 The cable retractor is installed to Figure 1 A schematic diagram of the structure on the cable pay-off turntable;

[0028] Figure 4 is Figure 1 A schematic diagram of a structure in which an expansion air ring is added to the upper end of the core shaft on the basis of the cable pay-off turntable;

[0029] Figure 5 is Figure 4 On the basis of the above, a structural diagram after a take-up and pay-off line anti-loosening arrangement device and an up and down reciprocating moving device are added;

[0030] Figure 6 yes Figure 5 A top view of the part of the anti-loosening arrangement device for the pay-off and take-up wires;

[0031] Figure 7 is Figure 5 A structural schematic diagram of a flexible sleeve-type water ring arranged on a vertical shaft (a partial cross-sectional view of the upper end of the vertical shaft);

[0032] Figure 8 It is a structural schematic diagram of a flexible sleeve type water ring in close contact with the cable on the cable retracting drum, and forming an axial extrusion thrust with a force F1>F2.

[0033] In the figure: 1. support foot, 2. rib plate, 3. bearing seat, 4. core shaft, 5. cable retractable disk, 6. turntable, 7. guard ring, 8. bearing assembly, 9. plane thrust bearing, 10. radial rolling bearing, 11. lifting ear, 12. expansion air ring, 13. pneumatic pipeline, 14. valve, 15. compressed air source, 16. internal air circuit, 17. retractable wire anti-loosening arrangement device, 18. torque shaft, 19. arc arm, 20. vertical shaft, 21. torsion spring, 22. roller, 23. flexible sleeve water ring, 24. elastic rubber hollow container, 25. up and down reciprocating device, 26. speed sensor, 27. speed measuring gear disc, 28. connecting pipe. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0035] like Figures 1 to 8 The figure shows an embodiment of a cable pay-off turntable of the present invention, comprising four supporting legs 1 dispersedly distributed on the same circumference, a bearing seat 3 arranged at the center of the circumference and connected to the supporting legs 1 through rib plates 2, a core shaft 4 rotatably arranged on the bearing seat 3, and a turntable 6 sleeved on the upper end of the core shaft 4 for installing a cable retractable reel 5, wherein a guard ring 7 is arranged on the periphery of the turntable 6, and the lower ends of the guard ring 7 are respectively connected to the four supporting legs 1.

[0036] Preferably, the core shaft 4 is rotatably disposed on the bearing seat 3 via a bearing assembly, and the bearing assembly includes a planar thrust bearing 9 disposed at the upper end of the bearing seat 3 and a radial rolling bearing 10 disposed at the lower end of the bearing seat 3 .

[0037] In order to facilitate lifting and movement, a lifting lug 11 is provided on the outer side of the supporting foot 1 .

[0038] As a further improvement of this embodiment, the upper end of the core shaft 4 is higher than the turntable 6, and an expansion air ring 12 is coated on the upper end of the core shaft 4 higher than the turntable 6. The expansion air ring 12 is used to position the inner hole of the cable retractable drum 5 of different specifications. The expansion air ring is connected to a compressed air source 15 through a pneumatic pipeline 13 and a valve 14 arranged on the pneumatic pipeline 13; the valve 14 is a three-way ball valve used to realize the inflation and deflation of the expansion air ring 12.

[0039] An internal air circuit 16 is disposed at the center of the core shaft 4 , one end of the internal air circuit 16 is connected to the inside of the expansion air ring 12 , and the other end of the internal air circuit 16 is connected to the pneumatic pipeline 13 .

[0040] Note that before hoisting the cable retractable drum 5, the diameter of the expansion air ring 12 should be adjusted in advance according to the size of the inner hole diameter of the cable retractable drum 5 by inflating or deflating the pneumatic pipeline 13, and hoisting can be carried out after confirming that it is adjusted in place.

[0041] Preferably, the expandable balloon 12 can be made into several different specifications and replaced when needed. Note that after the replaceable expandable balloon 12 is installed, the threaded hole at the center of the top of the mandrel should be used to axially limit the replaceable expandable balloon 12 using screws and a pressure plate.

[0042] In order to effectively prevent the cables from loosening and shifting on the cable reel 5 when reeling or releasing the cables, a further improvement scheme is: a reeling or releasing cable anti-loosening arrangement device 17 is also provided on the turntable 6, and the reeling or releasing cable anti-loosening arrangement device 17 includes a torque shaft 18 perpendicular to the turntable 6 and rotatably arranged on the edge of the turntable 6, and an arc-shaped arm 19 connected to the torque shaft 18, and the cantilever end of the arc-shaped arm 19 is connected to a vertical shaft 20 perpendicular to the turntable 6; a torsion spring 21 is provided between the torque shaft 18 and the turntable 6, and the torque shaft 18 realizes the elastic pressing of the vertical shaft 20 on the cable on the cable reel 5 through the torque provided by the torsion spring 21.

[0043] Preferably, a roller 22 is disposed on the outer sleeve of the vertical shaft 20 , and the roller 22 is rotatably disposed on the vertical shaft 20 via a pair of radial rolling bearings 10 arranged up and down.

[0044] In order to further improve the reliability of cable loosening prevention, the retractable cable loosening prevention and sorting device 17 also includes a flexible sleeve water ring 23 sleeved on the outer circle of the drum 22, the flexible sleeve water ring 23 is surrounded by a non-retractable flexible sealing fabric, and the interior of the flexible sleeve water ring 23 is filled with incompressible liquid; the top of the drum 22 is also connected to an elastic rubber hollow container 24, the interior of the elastic rubber hollow container 24 is filled with incompressible liquid and is connected to the interior of the flexible sleeve water ring 23 through a connecting pipe 28.

[0045] Preferably, the incompressible liquid is water.

[0046] As a preferred solution of this embodiment, an up and down reciprocating moving device 25 for spirally retracting and releasing the cable and driven by a servo reduction motor is also provided next to the turntable 6. A speed measuring gear disc 27 is also coaxially connected to the lower end of the turntable 6. A speed sensor 26 for detecting the rotational speed of the turntable 6 and aligned with the speed measuring gear disc 27 is provided on the rib plate 2. The servo reduction motor and the speed sensor 26 are respectively connected to the MCU controller.

[0047] When the cable is retracted or released, the MCU controller controls the speed of the servo reduction motor according to the speed of the turntable 6, thereby automatically matching the rotation speed of the cable retracting disk 5 and the moving speed of the up and down reciprocating moving device 25, thereby achieving a more precise spiral retracting or releasing operation.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cable pay-off turntable, characterized in that: It includes four supporting feet dispersed on the same circumference, a bearing seat arranged at the center of the circumference and connected to the supporting feet through rib plates, a core shaft rotatably arranged on the bearing seat, and a turntable sleeved on the upper end of the core shaft for installing a cable retractable disk. A guard ring is arranged on the periphery of the turntable, and the lower ends of the guard ring are respectively connected to the four supporting feet; the upper end of the core shaft is higher than the turntable, and an expansion air ring is arranged on the upper end of the core shaft higher than the turntable. The expansion air ring is used to locate the inner holes of cable retractable disks of different specifications. The expansion air ring is connected to a compressed air source through a pneumatic pipeline and a valve arranged on the pneumatic pipeline; the valve is a three-way ball valve for realizing inflation and deflation of the expansion air ring; an internal air circuit is arranged at the central part of the core shaft, one end of the internal air circuit is connected to the inside of the expansion air ring, and the other end of the internal air circuit is connected to the pneumatic pipeline; the turntable is also provided with a retractable line anti-loosening finishing device The cable retractable cable anti-loosening arrangement device comprises a torque shaft which is perpendicular to the turntable and rotatably arranged at the edge of the turntable, an arc-shaped arm connected to the torque shaft, and the cantilever end of the arc-shaped arm is connected to a vertical shaft which is perpendicular to the turntable; a torsion spring is arranged between the torque shaft and the turntable, and the torque shaft realizes the elastic pressing of the vertical shaft against the cable on the cable retractable cable retractable cable retractable plate through the torque provided by the torsion spring; a roller is arranged on the vertical shaft, and the roller is rotatably arranged on the vertical shaft through a pair of radial rolling bearings arranged up and down; the cable retractable cable anti-loosening arrangement device also comprises a flexible sleeve-type water ring which is arranged on the outer circle of the roller, and the flexible sleeve-type water ring is surrounded by a non-retractable flexible sealing fabric, and the interior of the flexible sleeve-type water ring is filled with incompressible liquid; the top of the roller is also connected to an elastic rubber hollow container, and the interior of the elastic rubber hollow container is filled with incompressible liquid and is connected to the interior of the flexible sleeve-type water ring through a connecting pipe.

2. A cable pay-off turntable according to claim 1, characterized in that: The core shaft is rotatably arranged on the bearing seat through a bearing assembly. The bearing assembly includes a planar thrust bearing arranged at the upper end of the bearing seat and a radial rolling bearing arranged at the lower end of the bearing seat.

3. The cable pay-off turntable according to claim 1, characterized in that: The outer side of the supporting foot is provided with a lifting lug.

4. The cable pay-off turntable according to claim 1, characterized in that: Next to the turntable is also provided an up and down reciprocating device for spirally retracting and releasing the cable and driven by a servo reduction motor. The lower end of the turntable is also coaxially connected to a speed measuring gear disc. The rib plate is provided with a speed sensor aimed at the speed measuring gear disc for detecting the speed of the turntable. The servo reduction motor and the speed sensor are respectively connected to the MCU controller.

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