A large cable drum bracket

Abstract

The present invention belongs to the technical field of cable tool design, and specifically relates to a large cable reel bracket. The large cable reel bracket includes two bearing brackets, and the cable reel is hinged on the two bearing brackets. The bearing brackets further include: a frame body, a lifting cylinder, a threaded locking rod and a drive seat. The frame body is constructed in an isosceles trapezoid, and the lifting cylinder is vertically fixed to the bottom plate. Its oil rod passes through the top plate and is provided with a hinge seat. The threaded locking rod is vertically fixed to the hinge seat and passes through the top plate. A locking nut is provided on the threaded locking rod between the hinge seat and the top plate. Two drive seats are provided, which are respectively provided on the two side plates. The drive seat is provided with a supporting wheel, one of which is correspondingly provided with a hydraulic motor, and a telescopic cylinder is provided on the side plate. The present invention is easy to install, can provide stable support, is suitable for large cable reels of different sizes, and can adjust the cable reel to a suitable laying-out height and angle. On the one hand, the supporting wheel can assist in fixing the cable reel, and on the other hand, it can actively drive the cable reel to rotate.

Description

Technical Field

[0001] The invention belongs to the technical field of cable tool design, and in particular relates to a large cable reel bracket. Background Art

[0002] Some cable reels can be nearly five meters in diameter and weigh nearly 40 tons. Loading and unloading these heavy and bulky reels requires specialized lifting equipment, and improper handling can easily result in casualties and equipment damage. Existing supports for cable reels are mostly fixed, non-adjustable, and simple structures. When mounting these large cable reels on supporting supports or installing them overhead, the heavy reels place greater demands on the lifting equipment. If the lifting equipment has limited lifting capacity, it may not be able to lift the reel in one go, requiring multiple adjustments or replacements, which prolongs installation time. Furthermore, the lifting process requires a high level of operator skill and experience, and improper handling can lead to safety incidents, further impacting construction efficiency.

[0003] In addition, if the cable reel is too heavy, the rotational resistance of the cable reel will increase during the pay-off process. On the one hand, the construction workers need to apply greater force to drive the cable reel to rotate, which will slow down the pay-off speed. On the other hand, the cables may become entangled and knotted with each other, resulting in poor pay-off. On the other hand, the greater resistance may also cause the cable to jam during the pay-off process, requiring construction workers to make continuous adjustments, which reduces the continuity and efficiency of pay-off and increases the difficulty and time cost of construction.

[0004] In addition, manually pulling the cable to pay out the cable will make the cable reel payout speed uneven, which may cause the cable to be pulled or damaged.

[0005] There are also solutions in the prior art that set the bearing bracket as a liftable structure, such as the technical solution of the existing patent application with publication number CN119750304A, which realizes the lifting of the cable reel by arranging a cylinder in the bracket. Although this structure can achieve the installation of the cable reel on the bearing bracket by adjusting the installation height of the bearing bracket to adapt to the size of the cable reel, and the cable reel can be lifted and lowered after being installed on the bearing bracket to achieve overhead installation, the bearing bracket of this structure adopts a single cylinder to achieve lifting, and the weight of the cable reel is all applied to the cylinder, which has high requirements on the bearing capacity of the cylinder. It is only suitable for lighter and smaller cable reels, but not for bulky and large cable reels.

[0006] There are also solutions in the prior art that use a structure of active rollers and driven rollers to actively drive the cable reel to rotate and realize active cable reel payout, such as the technical solution of the existing patent application with publication number CN119750304A. However, the weight of the cable reel in this solution is entirely borne by the active rollers and driven rollers, and the active rollers are subjected to a large radial pressure. Similarly, it is also only suitable for use with lighter cable reels. Summary of the Invention

[0007] The present invention provides a large cable drum support, which aims to solve the problems existing in the above-mentioned prior art. The large cable drum support comprises two bearing supports, on which the cable drum is hinged, and the bearing supports further comprise:

[0008] The frame is constructed into an isosceles trapezoid by a bottom plate, a top plate and two side plates;

[0009] A lifting oil cylinder is vertically fixed on the bottom plate, and its oil rod passes through the top plate from bottom to top, and the upper end of the oil rod is provided with a hinge seat for hingedly connecting the cable drum;

[0010] a threaded locking rod, vertically fixed to the hinge seat, with its bottom end passing through the top plate from top to bottom; a locking nut is connected to the threaded locking rod, and the locking nut is located between the hinge seat and the top plate, and the locking nut is used to rotate to abut against the top plate to auxiliary lock the lifting cylinder, or rotate to disengage from the top plate to unlock the lifting cylinder;

[0011] There are two driving seats, and the two driving seats are respectively arranged on the two side panels. The driving seats are provided with freely rotating supporting wheels, and one of the driving seats is provided with a hydraulic motor for driving the corresponding supporting wheel to rotate; a telescopic oil cylinder is provided on the side panel, and the telescopic oil cylinder is used to drive the driving seat to move along the side panel, thereby driving the supporting wheel to contact or disengage with the cable drum.

[0012] In a specific embodiment, the axis of the lifting cylinder coincides with the center line of the frame, a plurality of threaded locking rods are provided and arranged on both sides of the lifting cylinder, and the threaded locking rods are T-shaped screw rods.

[0013] In a specific embodiment, a hollow shaft corresponding to the threaded locking rod is further connected between the top plate and the bottom plate, and the threaded locking rod is inserted into the hollow shaft.

[0014] In a specific embodiment, a mounting plate is provided on the side plate, a guide rod is provided on the mounting plate, the drive seat is slidably set on the guide rod, the telescopic cylinder is set on the mounting plate, and the oil rod of the telescopic cylinder is connected to the drive seat.

[0015] In a specific embodiment, the top plate is provided with lifting lugs for lifting.

[0016] In a specific embodiment, it also includes a hydraulic station and an electric control cabinet. The hydraulic station further includes a motor oil pump. The motor oil pump is connected to the lifting cylinder, telescopic cylinder and hydraulic motor through an oil circuit. A valve is provided on the oil circuit. The motor oil pump is electrically connected to the controller in the electric control cabinet.

[0017] The present invention has the following beneficial effects: The hinged base on the large cable reel bracket, which is hinged to the cable reel, automatically rises and falls under the action of a lifting cylinder, making the cable reel and hinge base easy to install. This allows for cable reels of varying sizes to be installed without the need for a crane, shortening installation time and reducing lifting costs. Once mounted on the frame, the cable reel can be raised or lowered as needed, facilitating adjustment to the desired payout height and angle. The isosceles trapezoidal frame, in conjunction with the lifting cylinder and a threaded locking rod with a locking nut, provides stable support, making it suitable for large and bulky cable reels. This prevents the reel from shaking or tilting during payout and resolves the issue of insecure cable reel fixation during loading and transportation. The rollers on the two side panels, when in rolling contact with the cable reel, not only help stabilize the reel on the frame but also actively drive its rotation. This eliminates the need for extensive manpower and auxiliary equipment for payout, significantly reducing payout resistance, lowering operator workload, and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall three-dimensional structural diagram of an embodiment of the present invention.

[0019] Figure 2 This is a front view of a supporting bracket in one embodiment of the present invention.

[0020] Figure 3 FIG. 4 is a top view of a supporting bracket according to an embodiment of the present invention.

[0021] Figure numerals: load-bearing bracket 1, cable drum 2, bottom plate 111, top plate 112, side plate 113, mounting plate 114, guide rod 115, telescopic cylinder 116, lifting eye 117, lifting cylinder 12, hinge seat 121, threaded locking rod 13, locking nut 131, hollow shaft 132, drive seat 14, supporting wheel 141, hydraulic motor 142, hydraulic station 3, electric control cabinet 4. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 3 The present invention provides a large cable drum support, which includes two bearing supports 1, a cable drum 2 is hinged on the two bearing supports 1, and the bearing supports 1 further include: a frame body, a lifting cylinder 12, a threaded locking rod 13 and a driving seat 14.

[0023] The frame is constructed of a bottom plate 111, a top plate 112 and two side plates 113 into an isosceles trapezoid. This structure has a high load-bearing capacity and is stable, and is more suitable for the heavy and large cable reel 2 to be carried in this solution.

[0024] Lifting cylinder 12 is vertically fixed to base plate 111. Its oil rod extends upward through top plate 112. A hinge 121 is located at its upper end. Hinged seat 121 is equipped with a freely rotating shaft that engages the central tube of cable drum 2, thereby achieving an articulated connection between hinge 121 and cable drum 2. The axis of lifting cylinder 12 coincides with the centerline of the frame, placing the center of gravity of cable drum 2 at the center of the two frames to ensure stability.

[0025] A threaded locking rod 13 is vertically fixed to the hinge seat 121, with its bottom end extending downward through the top plate 112. A locking nut 131 is connected to the threaded locking rod 13 and positioned between the hinge seat 121 and the top plate 112. The locking nut 131 can be rotated to abut against the top plate 112 to assist in locking the lift cylinder 12, or rotated to disengage from the top plate 112 to unlock the lift cylinder 12. Multiple threaded locking rods 13 are provided and arranged on both sides of the lifting cylinder 12. The threaded locking rods 13 are T-shaped screws. By providing the threaded locking rods 13, the lifting cylinder 12 is auxiliaryly locked, so that part of the weight of the cable drum 2 is borne by the lifting cylinder 12, and the other part is transmitted by the threaded locking rods 13 to the locking nut 131, and then to the isosceles trapezoidal frame. Compared with the existing load-bearing bracket 1 that only uses the lifting cylinder 12 and support rods to bear the weight of the cable drum 2, the structure in this solution that collaboratively bears the weight of the cable drum 2 has a stronger load-bearing capacity and better stability, making it more suitable for use with large cable drums 2. A hollow shaft 132 corresponding to the threaded locking rod 13 is also connected between the top plate 112 and the bottom plate 111. The threaded locking rod 13 is inserted into the hollow shaft 132 to prevent the threaded portion of the threaded locking rod 13 from being exposed, which could easily cause safety accidents or damage. It also serves to guide the threaded locking rod 13 as it moves up and down with the lifting cylinder 12.

[0026] The top plate 112 is also provided with lifting lugs 117 to facilitate lifting the frame, or to facilitate lifting the cable drum 2 together after being installed on the two bearing brackets 1.

[0027] There are two drive seats 14, which are respectively arranged on two side plates 113. The side plates 113 are provided with mounting plates 114, and the mounting plates 114 are provided with guide rods 115. The drive seats 14 are slidably arranged on the guide rods 115. The drive seats 14 are provided with freely rotating rollers 141. One of the drive seats 14 is provided with a travel transmission device, which integrates a hydraulic rotation device, which in turn integrates a reducer and a hydraulic motor 142. The oil circuit of the hydraulic station is connected to the oil inlet and outlet of the hydraulic motor 142, thereby driving the hydraulic motor 142 and the reducer to rotate through the hydraulic oil. The reducer then drives the corresponding roller 141 to rotate through the rotating shaft of the roller 141. The hydraulic motor 142 can provide high torque output at low speeds, which is suitable for the application scenario of driving the large cable drum 2 in this application. Moreover, the hydraulic motor 142 can achieve smooth stepless speed change, which can solve the problem of line jamming to a certain extent. A telescopic oil cylinder 116 is provided on the mounting plate 114 , and the oil rod of the telescopic oil cylinder 116 is connected to the driving seat 14 . The telescopic oil cylinder 116 is used to drive the driving seat 14 to move along the side plate 113 , thereby driving the supporting wheel 141 to contact or disengage with the cable drum 2 .

[0028] The hydraulic station 3 and the electrical control cabinet 4 are also included. The hydraulic station 3 includes a motor-operated oil pump. The motor-operated oil pump is connected to the lifting cylinder 12, the telescopic cylinder 116, and the hydraulic motor 142 via oil circuits. The oil circuits are equipped with valves, which are multi-way valves connected between the main oil circuit and each branch oil circuit. This allows the hydraulic station 3 and the valves to coordinate and supply hydraulic oil to the lifting cylinder 12, the telescopic cylinder 116, and the hydraulic motor 142, respectively. The motor-operated oil pump is electrically connected to a controller within the electrical control cabinet 4, enabling the controller within the electrical control cabinet 4 to control the operation of the motor-operated oil pump of the hydraulic station 3. Alternatively, the valves can be solenoid valves, which are electrically connected to the controller within the electrical control cabinet 4 to automatically control the operation of the valves. It should be noted that the coordination of the hydraulic station 3 and the valves to supply hydraulic oil to the lifting cylinder 12 and the telescopic cylinder 116, respectively, is a conventional hydraulic control technology, and its specific operating principles will not be elaborated here. The principle of the controller controlling the motor-operated oil pump 3 and the solenoid valves is also conventional.

[0029] The working principle of the present invention is as follows: When transporting a cable reel 2, the cable reel 2 and the two supporting brackets 1 are first hoisted onto a transport vehicle. Then, on the transport vehicle, the hinge seat 121 on the supporting bracket 1 is driven to a height that docks with the cable reel 2 via the lifting cylinder 12, and the rotating shaft on the hinge seat 121 is inserted into the center tube of the cable reel 2, thereby hingedly connecting the cable reel 2 and the hinge seat 121. The lifting cylinder 12 is then used to lift the cable reel 2 until it is out of contact with the transport vehicle. The telescopic cylinder 116 then drives the drive seat 14 along the side panels 113, causing the supporting rollers 141 to contact the cable reel 2, further ensuring the stability of the cable reel 2, thereby completing the assembly of the cable reel 2 and the two supporting brackets 1. Alternatively, the cable reel 2 and the two supporting brackets 1 can be assembled on the ground and then hoisted onto a transport vehicle as a whole via the lifting lugs 117 provided on the top panel 112 of the frame. During the wire-laying operation, the controller in the electric control cabinet 4 controls the motor oil pump and valve in the hydraulic station 3 to cooperate, thereby controlling the operation of the hydraulic motor 142, and then driving the corresponding supporting wheel 141 to rotate. The rotation of the supporting wheel 141 drives the cable drum 2 to rotate, realizing active wire-laying operation. In addition, during the wire-laying operation, the lifting cylinder 12 can be controlled to adjust the height of the cable drum 2 and then adjust the wire-laying angle through the cooperation of the motor oil pump and the valve, and the speed of the hydraulic motor can be adjusted through the frequency converter of the motor oil pump to adjust the wire-laying speed.

[0030] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. A large cable drum support, comprising two bearing supports (1), a cable drum (2) being hinged to the two bearing supports (1), characterized in that: The load-bearing bracket (1) further comprises: The frame is constructed into an isosceles trapezoid by a bottom plate (111), a top plate (112) and two side plates (113); A lifting oil cylinder (12) is vertically fixed on the bottom plate (111), and its oil rod passes through the top plate (112) from bottom to top, and a hinge seat (121) for hinged connection to the cable drum (2) is provided at the upper end of the oil rod; A threaded locking rod (13) is vertically fixed on the hinge seat (121), and its bottom end passes through the top plate (112) from top to bottom; a locking nut (131) is connected to the threaded locking rod (13), and the locking nut (131) is located between the hinge seat (121) and the top plate (112), and the locking nut (131) is used to rotate to abut against the top plate (112) to auxiliary lock the lifting cylinder (12), or rotate to disengage from the top plate (112) to unlock the lifting cylinder (12); A driving seat (14), wherein two driving seats (14) are provided, and the two driving seats (14) are respectively provided on the two side plates (113); a freely rotatable supporting wheel (141) is provided on the driving seat (14); a hydraulic motor (142) is provided on one of the driving seats (14) for driving the corresponding supporting wheel (141) to rotate; a telescopic oil cylinder (116) is provided on the side plate (113); the telescopic oil cylinder (116) is used to drive the driving seat (14) to move along the side plate (113), thereby driving the supporting wheel (141) to contact or separate from the cable drum (2); During the wire-laying operation, the height of the cable drum (2) is adjusted by controlling the lifting oil cylinder (12), thereby adjusting the wire-laying angle.

2. The large cable drum support according to claim 1, characterized in that: The axis of the lifting cylinder (12) coincides with the center line of the frame, a plurality of threaded locking rods (13) are provided and arranged on both sides of the lifting cylinder (12), and the threaded locking rods (13) are T-shaped screw rods.

3. The large cable drum support according to claim 1, characterized in that: A hollow shaft (132) corresponding to the threaded locking rod (13) is also connected between the top plate (112) and the bottom plate (111), and the threaded locking rod (13) is inserted into the hollow shaft (132).

4. The large cable drum support according to claim 1, characterized in that: A mounting plate (114) is provided on the side plate (113), a guide rod (115) is provided on the mounting plate (114), the drive seat (14) is slidably arranged on the guide rod (115), the telescopic oil cylinder (116) is arranged on the mounting plate (114), and the oil rod of the telescopic oil cylinder (116) is connected to the drive seat (14).

5. The large cable drum support according to claim 1, characterized in that: The top plate (112) is provided with a lifting lug (117) for lifting.

6. The large cable drum support according to any one of claims 1 to 5, characterized in that: The invention also includes a hydraulic station (3) and an electric control cabinet (4). The hydraulic station (3) further includes a motor oil pump. The motor oil pump is connected to the lifting cylinder (12), the telescopic cylinder (116) and the hydraulic motor (142) through an oil circuit. A valve is provided on the oil circuit. The motor oil pump is electrically connected to a controller in the electric control cabinet (4).

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