Steel coil rotary table

Abstract

The utility model discloses a steel coil rotary table which comprises a rotary supporting table, a large rotary bearing is installed on the rotary supporting table, a rotary connecting shaft is installed on an inner ring of the large rotary bearing, the rotary connecting shaft rotatably penetrates through a table top of the rotary supporting table, a connecting frame is fixed to the bottom of the rotary connecting shaft, and a rotating shaft is installed on the connecting frame. A rotary saddle is installed on the rotary connecting shaft, a supporting frame is fixed to the rotary supporting table, and a rotary telescopic rod is hinged between the connecting frame and the supporting frame. The utility model relates to the field of steel coil production, in particular to a steel coil rotary table.

Description

Technical Field

[0001] This utility model relates to the field of steel coil production, specifically to a steel coil rotary table. Background Technology

[0002] After the strip steel is coiled by the underground coiler of a hot-rolled strip mill, during the process of transporting the coil into the warehouse, some domestic hot-rolled production lines, due to geographical location and process layout, require the coil to be rotated 90° before entering the warehouse so that the coil can be hoisted into the warehouse by a straddle crane. Rotary table type: Installed between two walking beam conveyors, it receives the coil from the walking beam conveyors, rotates the coil 90°, and then receives it from the rotary table via the walking beams before entering the warehouse.

[0003] The equipment consists of a rotating saddle, a rotary hydraulic motor, a rotary support bearing, and a support frame. The rotating saddle is a welded structure. It is mounted on the lifting frame via a large rotary support bearing and can rotate 90° in both directions under the action of the rotary hydraulic motor.

[0004] The current rotary table has the following problems reported by workers during actual production:

[0005] 1. The original design of the steel coil turret used a hydraulic motor drive, which is extremely unstable and cannot accurately control the rotation angle of the turret.

[0006] 2. The large inertia of the hydraulic motor during start-stop operation can cause the mechanical stop to detach and fall off.

[0007] 3. Equipment malfunctions such as loose fastening bolts, complete drop of the reducer, or damage to the reducer.

[0008] 4. The rotary table has a slow rotation cycle, which affects the rolling rhythm. Utility Model Content

[0009] This invention utilizes a hydraulic oil source and a hydraulic valve platform, and replaces a rotary hydraulic motor with a rotary hydraulic cylinder, achieving good results.

[0010] To solve the above problems, the technical solution adopted by this utility model is as follows: This utility model is a steel coil rotary table, including a rotary support table, a rotary bearing is installed on the rotary support table, a rotary connecting shaft is installed on the inner ring of the rotary bearing, the rotary connecting shaft rotates through the tabletop of the rotary support table, a connecting frame is fixed at the bottom of the rotary connecting shaft, a rotary saddle is installed on the rotary connecting shaft, a support frame is fixed on the rotary support table, and a rotary telescopic rod is hinged between the connecting frame and the support frame.

[0011] Furthermore, the slewing telescopic rod uses a hydraulic cylinder.

[0012] Furthermore, the slewing saddle rotates 90° under the control of the slewing telescopic rod.

[0013] Preferably, the hydraulic cylinder is designed with a displacement sensor, which can be controlled at any position within the full stroke of the hydraulic cylinder by means of a proportional electromagnet.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] 1. The hydraulic motor and its matching reducer are eliminated and replaced with a hydraulic cylinder for the rotation control of the rotary table. Based on the output torque of the hydraulic motor and its matching reducer and the inertial torque of the rotary table, the rotary hydraulic cylinder has a cylinder diameter of Φ80mm, a rod diameter of Φ56mm, and a rotary arm length of 550mm. Therefore, under the same hydraulic pressure, the output torque of the rotary telescopic rod is more than twice that of the hydraulic motor and its matching reducer.

[0016] 2. The hydraulic cylinder is designed with a displacement sensor, which, through the control of a proportional electromagnet, allows for control of any position within the cylinder's full stroke. The hydraulic control circuit of the hydraulic cylinder utilizes the control circuit of the existing hydraulic motor, eliminating the need for a separate hydraulic control valve platform and reducing modification costs.

[0017] Compared with existing equipment, the advantages of this utility model are that the rotary hydraulic cylinder is easy to install and maintain, reliable in use, and the rotation speed and rotation angle can be precisely controlled, which can solve all the problems existing in the use of the original rotary table design. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a steel coil rotary table proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of a steel coil rotary table that drives a rotary connecting shaft to rotate 90° according to the present invention.

[0020] Figure 3 This is a structural schematic diagram of a steel coil rotary table tool rack connecting frame, support frame, and rotary telescopic rod proposed in this utility model.

[0021] Figure 4 This is a schematic diagram illustrating how the rotating telescopic rod of a steel coil rotary table, according to this utility model, drives the rotating connecting shaft to rotate 90°.

[0022] The components include: 1. Rotary support table; 2. Rotary large bearing; 3. Rotary connecting shaft; 4. Connecting frame; 5. Rotary saddle; 6. Support frame; and 7. Rotary telescopic rod. Detailed Implementation

[0023] As per the instruction manual Figures 1-4As shown, this utility model is a steel coil rotary table, including a rotary support table 1, a rotary bearing 2 installed on the rotary support table 1, a rotary connecting shaft 3 installed on the inner ring of the rotary bearing 2, the rotary connecting shaft 3 rotatably passes through the tabletop of the rotary support table 1, a connecting frame 4 is fixed at the bottom of the rotary connecting shaft 3, a rotary saddle 5 is installed on the rotary connecting shaft 3, a support frame 6 is fixed on the rotary support table 1, a rotary telescopic rod 7 is hinged between the connecting frame 4 and the support frame 6, the fixed end of the rotary telescopic rod 7 is hinged to the support frame 6, and the output end of the rotary telescopic rod 7 is hinged to the connecting frame 4.

[0024] As per the instruction manual Figures 1-4 As shown, the slewing telescopic boom 7 uses a hydraulic cylinder. The slewing saddle 5 rotates 90° under the control of the slewing telescopic boom 7.

[0025] In practical use: the rotation of the slewing saddle 5 can be achieved by extending and retracting the piston rod of the slewing telescopic rod 7, which can achieve an angle of ±90°. The pressure, flow and position of the slewing telescopic rod 7 can be precisely controlled by a proportional valve.

[0026] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel coil rotary table, comprising a rotary support table (1), characterized in that: A large slewing bearing (2) is installed on the slewing support table (1). A slewing connecting shaft (3) is installed on the inner ring of the large slewing bearing (2). The slewing connecting shaft (3) rotates through the tabletop of the slewing support table (1). A connecting frame (4) is fixed at the bottom of the slewing connecting shaft (3). A slewing saddle (5) is installed on the slewing connecting shaft (3). A support frame (6) is fixed on the slewing support table (1). A slewing telescopic rod (7) is hinged between the connecting frame (4) and the support frame (6).

2. The steel coil rotary table according to claim 1, characterized in that: The slewing telescopic rod (7) uses a hydraulic cylinder.

3. A steel coil rotary table according to claim 1, characterized in that: The slewing saddle (5) rotates 90° under the control of the slewing telescopic rod (7).

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