A composite skirt for cooling bed

Abstract

The present invention discloses a composite skirt plate for a cooling bed, which relates to the technical field of metallurgical steel rolling equipment. The front end of the panel on the skirt plate of the present invention is opened in the middle and the composite skirt plate is movably provided with the composite skirt plate, and a lifting mechanism and a skirt plate lifting and advancing mechanism are installed inside the skirt plate body. The skirt plate lifting and advancing mechanism comprises a moving block fixedly connected to the middle of the composite skirt plate and a limiting rod fixedly connected to the skirt plate body, a limiting groove is provided in the middle of the moving block for the limiting rod to pass through, and the lifting mechanism is used to drive the moving block to perform lifting and translational movement according to the limiting groove, so that the composite skirt plate is lifted relative to the panel on the skirt plate, and the side edge of the composite skirt plate close to the skirt plate side baffle is moved to the inside of the projection range of the panel on the skirt plate. After completing the lifting and translational movement, the lifting mechanism is separated from the moving block, so that it returns to its original position under the action of gravity until the composite skirt plate and the panel on the skirt plate are coplanar. The present invention has a simple structure, is easy to implement, has strong adaptability, and can solve the problem of skirt plate hanging steel.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical steel rolling equipment, in particular to a composite skirt plate for a cooling bed. Background Art

[0002] The steel section production process mainly includes heating in a heating furnace - rolling in a roughing mill - rolling in a medium and finishing mill - segmenting by a flying shear - cooling on a cooling bed - straightening - cutting with a cold saw - inspection and packaging.

[0003] On the small line of the H-beam plant of Maanshan Iron and Steel's Long Products Division, after the steel sections are rolled on the rolling mill, they need to be loaded onto the cooling bed via rollers for cooling. When the temperature drops below 80°C, the subsequent processes can be carried out. When the steel sections are transported to the rollers and loaded onto the cooling bed, they need to be lifted to the same height as the cooling bed rack with the help of the cooling bed skirt, and then moved toward the unloading side of the cooling bed through the stepping motion of the rack. When the cooling bed skirt lifts the steel sections, it is often encountered that the lower flange of one side of the steel section rests on the outside of the skirt and cannot be lifted. There is no good solution to this problem yet, and the skirt needs to be lowered to a low position for repeated attempts, which seriously affects the steel-making rhythm of the rolling mill and restricts the production of the team.

[0004] The utility model patent, CN204817494U, titled "A Cooling Bed Skirt for Easy Maintenance," discloses a cooling bed skirt with a split structure. When the top surface is worn, only the top cover needs to be replaced, without replacing the base. This not only reduces spare parts costs and maintenance costs, but also allows for the removal and assembly of the top cover without space restrictions, greatly improving the skirt's maintenance efficiency. However, there is no mention of steel hanging. Therefore, a composite skirt for cooling beds is urgently needed to solve this problem. Summary of the Invention

[0005] The object of the present invention is to provide a composite skirt plate for a cooling bed to solve the problem of steel hanging on the skirt plate.

[0006] The lifting mechanism is a kind of lifting mechanism that lifts up and down of described supporting ram and skirt board, and the lifting mechanism of described supporting ram is a kind of lifting mechanism of described supporting ram and skirt board.

[0007] Preferably, the lifting mechanism includes a rotating shaft, on which a driving gear is fixedly provided for transmission connection with a driving motor, and a lifting arm is fixedly provided in the middle of the rotating shaft for pushing the moving block after rotating a certain angle with the rotating shaft.

[0008] Preferably, an arc-shaped rolling groove is provided at the end of the moving block away from the composite skirt plate, and the groove mouth is oriented at an obtuse angle to the direction in which the end of the lifting arm moves to the upper end; when the working state of the composite skirt plate is coplanar with the panel on the skirt plate, the distance from the end of the arc-shaped rolling groove close to the direction of the lifting arm to the axis center of the rotating shaft is not less than the distance from the end of the lifting arm to the axis center of the rotating shaft; when the working state of the composite skirt plate is in the lifting and translation state where both the displacement limit determined by the limiting groove is reached, the distance from the end of the arc-shaped rolling groove away from the composite skirt plate to the axis center of the rotating shaft is not less than the distance from the end of the lifting arm to the axis center of the rotating shaft.

[0009] Preferably, a rolling wheel is installed at the end of the lifting arm to ensure smoother rolling along the arc-shaped rolling groove; a roller is rotatably installed at the contact point between the middle part of the limiting rod and the limiting groove to roll along the limiting groove.

[0010] Preferably, the limiting groove includes extensions in both vertical and horizontal directions, wherein the horizontal component from the lower end of the groove to the upper end of the groove is in the same direction as the direction from the skirt side baffle toward the support rod.

[0011] Preferably, there are two groups of limiting grooves and limiting rods, namely lifting groove one, fixing rod one and lifting groove two, fixing rod two, and the two groups are respectively arranged on the upper part and the lower part of the moving block.

[0012] Preferably, the movable block consists of two parts, which are detachably fixedly connected by connecting bolts; the two ends of the fixing rod 1 and the fixing rod 2 are detachably fixedly connected to the side walls of the skirt body by bolts respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The cooling bed uses a composite skirt plate. A separate lifting and advancing mechanism is set in the middle of the front end of the skirt plate. When the loading skirt plate is hung with steel, the lifting mechanism works to lift the steel upward and move it toward the side of the cooling bed, so that the steel hanging on the outer part of the skirt plate falls completely on the skirt plate, thereby solving the problem of steel hanging on the cooling bed.

[0015] 2. The composite skirt plate for the cooling bed has a simple structure and does not change the structure, connection and layout of the original equipment. It is easy to realize transformation and direct application on the existing basis and has strong adaptability. It fills the gap in the existing technology on the problem of hanging steel on the cooling bed skirt plate.

[0016] 3. The cooling bed uses a composite skirt plate, which can be easily disassembled and connected, making parts maintenance and replacement easy and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the main internal structure of the present invention;

[0019] Figure 3 This is a bottom-up perspective structural diagram of the present invention;

[0020] Figure 4 It is an enlarged structural schematic diagram of the lifting mechanism and the skirt plate lifting and advancing mechanism of the present invention;

[0021] Figure 5 Schematic diagram of the working state of the lifting mechanism of the present invention.

[0022] In the figure: 1—support rod; 2—skirt panel upper panel; 3—composite skirt panel; 4—skirt panel side baffle; 5—ear seat; 6—lifting mechanism; 60—rotating shaft; 61—lifting arm; 62—rolling wheel; 63—driving gear; 7—skirt panel lifting and advancing mechanism; 71—arc-shaped rolling groove; 721—lifting groove 1; 722—lifting groove 2; 73—roller; 741—fixing rod 1; 742—fixing rod 2; 75—connecting bolt. DETAILED DESCRIPTION

[0023] See Figures 1 to 5 When the lifting and translation movement is completed, the lifting mechanism 6 is separated from the moving block, so that it returns to its original position under the action of gravity until the composite skirt board 3 and the panel 2 on the skirt board are coplanar.

[0024] In an optional embodiment, the drive is driven by a motor to rotate, promote lifting and translation. At this time, the lifting mechanism 6 includes a rotating shaft 60, on which a driving gear 63 is fixed for connecting with the driving motor. A lifting arm 61 is fixed in the middle of the rotating shaft 60, which is used to push the moving block after following the rotating shaft 60 to rotate a certain angle; of course, a driving structure such as a cylinder push rod can also be used.

[0025] On the premise of adopting the above rotation drive, the following structure can be further adopted to realize specific movement: an arc-shaped rolling groove 71 is opened at the end of the moving block away from the composite skirt panel 3, and the angle between the groove opening and the direction when the end of the lifting arm 61 moves to the upper end is obtuse; when the working state of the composite skirt panel 3 is coplanar with the panel 2 on the skirt panel, the distance from the end of the arc-shaped rolling groove 71 close to the lifting arm 61 to the axis center of the rotating shaft 60 is not less than the distance from the end of the lifting arm 61 to the axis center of the rotating shaft 60; when the working state of the composite skirt panel 3 is in the lifting and translation, both reach the displacement limit determined by the limiting groove, the distance from the end of the arc-shaped rolling groove 71 away from the composite skirt panel 3 to the axis center of the rotating shaft 60 is not less than the distance from the end of the lifting arm 61 to the axis center of the rotating shaft 60.

[0026] In addition, in order to reduce blocking resistance, a rolling wheel 62 is installed at the end of the lifting arm 61 for rolling along the arc-shaped rolling groove 71; a roller 73 is rotatably installed at the contact point between the middle of the limiting rod and the limiting groove for rolling along the limiting groove.

[0027] As long as the following conditions are met, the specific shape of the above-mentioned limiting groove can be freely selected, including extensions in both vertical and horizontal directions, wherein the component in the horizontal direction from the lower end of the groove to the upper end of the groove is in the same direction as the direction from the skirt side baffle 4 toward the support rod 1. The specific shape can be L-shaped as shown in the figure, and the inner wall of the groove can be set to an arc shape, or it can be an arc shape, or it can be an oblique straight groove, or even an irregular wave shape, as long as it can meet the requirements of lifting and translation without obstruction.

[0028] In order to further ensure the stability of structural movement, such as Figure 2 As shown, there are preferably two groups of limiting grooves and limiting rods, namely, lifting groove 1 721, fixing rod 1 741 and lifting groove 2 722, fixing rod 2 742, and the two groups are respectively arranged at the upper and lower parts of the moving block; of course, in order to meet the stability, there can be more other structural options, such as guide rods, slide rails, etc. The above structure is only a relatively simple option.

[0029] Due to the maintenance needs of the cooling bed skirt, the components in the present invention may also need to be repaired or replaced. For convenience, the moving block is composed of two parts, which are detachably fixedly connected by a connecting bolt 75; the two ends of the fixing rod 1 741 and the fixing rod 2 742 are respectively detachably fixedly connected to the side walls of the skirt body by bolts.

[0030] Under the premise of the above preferred embodiment, when the skirt board of the present invention has a flange on one side of the steel section and is placed on the outer side of the skirt board to hang the steel and cannot move forward, the external motor drives the lifting arm 61 to rotate through the driving gear 63, and the rolling wheel 62 moves along the arc-shaped rolling groove 71. Under the limiting action of the fixed rod 1 741, the fixed rod 2 742, the lifting groove 1 721, and the lifting groove 2 722, the moving block is lifted upward, and the composite skirt board 3 holds up the product thereon. Driven by the horizontal movement of the moving block, the composite skirt board 3 moves laterally toward the cooling bed. After the composite skirt board 3 falls, the outer flange of the steel section is placed on the panel 2 on the skirt board, so that the original problem of hanging steel is solved, and then the steel can be continued to be delivered to the unloading end of the cooling bed through the stepping rack of the cooling bed.

[0031] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined by the claims.

[0032] Any matters not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. A composite skirt for a cooling bed, comprising a skirt body, one side of which is connected to a support rod (1), the other side of which is a skirt side baffle (4), the upper end surface of which is a skirt upper panel (2), and the lower end of which is provided with an ear seat (5), characterized in that: The front end of the upper panel (2) of the skirt board is opened in the middle and a composite skirt board (3) is movably provided thereon. A lifting mechanism (6) and a skirt board lifting and advancing mechanism (7) are installed inside the skirt board body. The skirt board lifting and advancing mechanism (7) comprises a moving block fixedly connected to the middle of the composite skirt board (3) and a limiting rod fixedly connected to the skirt board body. A limiting groove is provided in the middle of the moving block for the limiting rod to pass through. The lifting mechanism (6) is used to drive the moving block to perform lifting and translational movement according to the limiting groove, so that the composite skirt board (3) is lifted relative to the upper panel (2) of the skirt board, and the side edge of the composite skirt board (3) close to the skirt board side baffle (4) is moved to the inside of the projection range of the upper panel (2) of the skirt board. After completing the lifting and translational movement, the lifting mechanism (6) is separated from the moving block, so that the composite skirt board (3) is restored to its original position under the action of gravity until it is coplanar with the upper panel (2) of the skirt board. The lifting mechanism (6) includes a rotating shaft (60), a driving gear (63) is fixed on the rotating shaft (60) for transmission connection with the driving motor, and a lifting arm (61) is fixed in the middle of the rotating shaft (60) for following the rotating shaft (60) to rotate a certain angle and then push the moving block; An arcuate rolling groove (71) is provided at one end of the moving block away from the composite skirt plate (3). When the composite skirt plate (3) is in a working state coplanar with the upper panel (2) on the skirt plate, the distance from the end of the arcuate rolling groove (71) close to the lifting arm (61) to the axis of the rotating shaft (60) is not less than the distance from the end of the lifting arm (61) to the axis of the rotating shaft (60); when the composite skirt plate (3) is in a working state where both lifting and translation reach the displacement limit determined by the limit groove, the distance from the end of the arcuate rolling groove (71) away from the composite skirt plate (3) to the axis of the rotating shaft (60) is not less than the distance from the end of the lifting arm (61) to the axis of the rotating shaft (60).

2. The composite skirt plate for a cooling bed according to claim 1, characterized in that: The end of the lifting arm (61) is provided with a rolling wheel (62) for rolling along the arc-shaped rolling groove (71); the middle of the limiting rod is provided with a rolling wheel (73) for rolling along the limiting groove at the contact point with the limiting groove.

3. A composite skirt plate for a cooling bed according to claim 1 or 2, characterized in that: The limiting groove includes extensions in both vertical and horizontal directions, wherein the horizontal component from the lower end of the groove to the upper end of the groove is in the same direction as the direction from the skirt side baffle (4) toward the support rod (1).

4. The composite skirt plate for a cooling bed according to claim 3, characterized in that: The limiting grooves and limiting rods are provided in two groups, namely, a lifting groove 1 (721), a fixing rod 1 (741) and a lifting groove 2 (722), a fixing rod 2 (742), and the two groups are respectively provided at the upper part and the lower part of the moving block.

5. The composite skirt plate for a cooling bed according to claim 4, characterized in that: The movable block is composed of two parts, which are detachably fixedly connected by a connecting bolt (75); the two ends of the fixing rod (741) and the fixing rod (742) are detachably fixedly connected to the side wall of the skirt body by bolts.

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