Ladle tipping system with variable fulcrum

Abstract

The utility model relates to the technical field of pouring equipment, in particular to a variable fulcrum ladle tipping system which comprises a supporting seat, a ladle fixing frame, a ladle, a pushing mechanism, a plurality of tipping rods and an auxiliary supporting rod. The ladle fixing frames are symmetrically arranged on the two sides of the ladle, the tipping rods and the auxiliary supporting rods are symmetrically arranged on the two sides of the ladle according to different heights and positions, and the ladle fixing frames and the ladle are connected through the tipping rods and the auxiliary supporting rods. The hot metal ladle fixing frame and the hot metal ladle are arranged on the supporting base, and the pushing mechanism is connected with the hot metal ladle fixing frame. The principle structure that a lever can change supporting points is utilized, the multiple tipping rods are arranged on the tipping device to serve as the supporting points, each supporting point can control different tipping angles of a ladle, the height difference and the front-back distance of molten iron on an ingot mold can change along with changes of the positions of the supporting points when the molten iron is cast, and therefore all the molten iron is guided into the ingot mold. Not only are molten iron splashing and scouring phenomena reduced, but also the service life of the ingot mould can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to a variable fulcrum ladle tilting system. Background Art

[0002] Molten iron casting is a crucial step in the silicon alloy production process. The furnace eye is opened, and molten iron flows through the taphole into a ladle. The ladle, filled with molten iron, is then pulled by a tapping trolley to the casting workshop, where it is poured using auxiliary pouring equipment. These auxiliary equipment include traditional overhead cranes (main and auxiliary hooks) assisting ingot mold casting, more specialized and advanced ladle tilting equipment, and even highly automated ladle casting machines.

[0003] For example, the utility model patent with authorization announcement number CN214161382U discloses a device for tilting a steel or iron ladle forward and backward. The device includes a base, a tilting bracket, a lifting cylinder, a bottom support, a ladle, and a back-pull cylinder. The base is provided with a column. The tilting bracket is hingedly connected to the column. The cylinder body of the lifting cylinder is mounted on the base, and its piston rod is hingedly connected to the tilting bracket. The cylinder body of the back-pull cylinder is mounted on the upper side of the tilting bracket, close to the column. One side of the bottom support is hingedly connected to the side of the tilting bracket, away from the back-pull cylinder. The other side of the bottom support is hingedly connected to the piston rod of the back-pull cylinder. The ladle is detachably fixed to the bottom support. However, in the above scheme, the molten iron tilting device has only one fixed fulcrum. The molten iron ladle is fixed to the tilting bracket. During casting, the molten iron's landing point and the front-to-back distance from the ingot mold are both fixed. During casting, the height difference between the ladle mouth and the upper surface of the ingot mold is large, which easily causes molten iron splashing and ingot mold scouring. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the utility model aims to provide a variable fulcrum ladle tilting system.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a variable fulcrum ladle tilting system, comprising a support seat, a ladle fixing frame, a ladle, a pushing mechanism, a plurality of tilting rods and an auxiliary support rod; the ladle fixing frame is symmetrically arranged on both sides of the ladle, and the plurality of tilting rods and the auxiliary support rods are symmetrically arranged on both sides of the ladle at different heights and positions, and the ladle fixing frame and the ladle are connected by the tilting rods and the auxiliary support rods; the ladle fixing frame and the ladle are arranged on the support seat, and the pushing mechanism is connected to the ladle fixing frame.

[0006] The utility model is further configured as follows: the tilting rod includes a first tilting rod and a second tilting rod, one end of the first tilting rod, the second tilting rod and the auxiliary support rod are respectively welded to the ladle, and the other ends are respectively welded to the ladle fixing frame.

[0007] The present invention is further configured as follows: the first tilting rod is arranged at the pouring port of the molten iron ladle, and the second tilting rod and the auxiliary support rod are arranged at the ladle body of the molten iron ladle.

[0008] The present invention is further configured as follows: the second tilting rod and the auxiliary support rod are arranged in parallel in the horizontal direction, and the auxiliary support rod is away from the tilting direction.

[0009] The utility model is further configured as follows: there are two support seats, which are symmetrically arranged on both sides of the molten iron ladle.

[0010] The present invention is further configured as follows: the support seat includes a base, on which a first tilting rod support seat, a second tilting rod support seat and an auxiliary support rod support seat are provided; the positions of the first tilting rod support seat, the second tilting rod support seat and the auxiliary support rod support seat are coordinated with the positions of the first tilting rod, the second tilting rod and the auxiliary support rod.

[0011] The present invention is further configured as follows: arc-shaped support grooves are provided on the tops of the first tilting rod support seat, the second tilting rod support seat and the auxiliary support rod support seat.

[0012] When the ladle is placed on the support seat, the first tilting rod is located above the first tilting rod support seat and does not contact the arc-shaped support groove on the first tilting rod support seat, and the second tilting rod and the auxiliary support rod are arranged in the arc-shaped support groove at the top of the second tilting rod support seat and the auxiliary support rod support seat.

[0013] The utility model is further configured as follows: the pushing mechanism is a hydraulic oil cylinder, the extension rod of the hydraulic oil cylinder is hinged to the ladle fixing frame through a first pin shaft, and the cylinder body of the hydraulic oil cylinder is hinged to the base through a second pin shaft.

[0014] When the hydraulic cylinder is activated, causing the ladle to tilt, the auxiliary support rod first leaves the auxiliary support rod support seat, and the first tilting rod gradually approaches the arc-shaped support groove on the first tilting rod support seat. At this time, pouring is carried out with the second tilting rod as the fulcrum. As the hydraulic cylinder continues to move upward, the second tilting rod leaves the second tilting rod support seat. At this time, the first tilting rod contacts the arc-shaped support groove on the first tilting rod support seat, and pouring is carried out with the first tilting rod as the fulcrum.

[0015] The utility model is further configured as follows: the hydraulic cylinder is connected to an external hydraulic station via a hydraulic oil pipe.

[0016] The utility model is further configured as follows: a hydraulically controlled one-way valve is provided at the bottom of the hydraulic cylinder.

[0017] In summary, the beneficial effects of the above technical solution of the present utility model are as follows:

[0018] 1. The utility model utilizes the principle structure of a lever with a variable fulcrum. By arranging multiple tilting rods as fulcrums on the tilting device, each fulcrum can control different tilting angles of the molten iron ladle. When the molten iron is cast, the height difference and the front-to-back distance on the ingot mold can change with the change of the fulcrum position, so that all the molten iron is introduced into the ingot mold, which not only reduces the splashing and scouring of the molten iron, but also prolongs the service life of the ingot mold.

[0019] 2. The utility model installs a hydraulic lock, i.e. a hydraulically controlled one-way valve, at the bottom of the hydraulic cylinder of the hydraulic element. This can prevent the ladle from sliding down even in the event of hydraulic system failure, shutdown, pipe burst, load fluctuation, etc., thus ensuring the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 Schematic diagram of the variable fulcrum ladle tilting system described in the embodiment.

[0022] Figure 2 Schematic diagram of the variable fulcrum ladle tilting system after the ladle and ingot mold are removed.

[0023] Figure 3 Schematic diagram of a variable fulcrum ladle tilting system with the second tilting rod as the fulcrum.

[0024] Figure 4 Schematic diagram of a variable fulcrum ladle tilting system with the first tilting rod as the fulcrum.

[0025] Figure 5 This is a schematic diagram of the change in height difference and front-to-back distance on the ingot mold as the fulcrum position changes during casting.

[0026] In the accompanying drawings, the meanings of the symbols are as follows:

[0027] 1. Ingot mold, 2. Support seat, 21. First tilting rod support seat, 22. Second tilting rod support seat, 23. Auxiliary support rod support seat, 3. Ladle fixing frame, 4. Ladle, 5. Hydraulic cylinder, 6. Auxiliary support rod, 7. First tilting rod, 8. Second tilting rod, 9. First pin, 10. Second pin. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, other similar embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of the present invention.

[0029] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0030] Example:

[0031] like Figures 1-4 As shown, it is a preferred embodiment of the present invention, a variable fulcrum ladle tilting system, comprising a support seat 2, a ladle fixing frame 3, a ladle 4, a pushing mechanism, a plurality of tilting rods and an auxiliary support rod 6; the ladle fixing frame 3 is symmetrically arranged on both sides of the ladle 4, a plurality of tilting rods and an auxiliary support rod 6 are symmetrically arranged on both sides of the ladle 4 at different heights and positions, and the ladle fixing frame 3 and the ladle 4 are connected by the tilting rods and the auxiliary support rod 6; there are two support seats 2, which are symmetrically arranged on both sides of the ladle 4, and the ladle 4 is mounted on the support seat 2 by the tilting rods and the auxiliary support rod 6, and the pushing mechanism is connected to the ladle fixing frame 3.

[0032] In this embodiment, the tilting rod includes a first tilting rod 7 and a second tilting rod 8. One end of the first tilting rod 7, the second tilting rod 8 and the auxiliary support rod 6 are respectively welded to the ladle 4, and the other ends are respectively welded to the ladle fixing frame 3.

[0033] The first tilting rod 7 is arranged at the pouring port of the ladle 4, and the second tilting rod 8 and the auxiliary support rod 6 are arranged at the body of the ladle 4. The second tilting rod 8 and the auxiliary support rod 6 are arranged parallel in the horizontal direction, and the auxiliary support rod 6 is away from the tilting direction.

[0034] like Figure 1 As shown, in actual application, the variable fulcrum ladle tilting system is set on one side of the ingot mold 1, the first tilting rod 7 is close to the ingot mold 1 to be cast, and the auxiliary support rod 6 is set away from the ingot mold 1 to be cast.

[0035] It should be noted that when multiple sets of tilting rods are provided, the auxiliary support rod 6 is parallel to the bottommost tilting rod in the horizontal direction.

[0036] Combine Figure 2As shown, the support seat 2 includes a base, on which a first tilting rod support seat 21, a second tilting rod support seat 22 and an auxiliary support rod support seat 23 are provided; the positions of the first tilting rod support seat 21, the second tilting rod support seat 22 and the auxiliary support rod support seat 23 are coordinated with the positions of the first tilting rod 7, the second tilting rod 8 and the auxiliary support rod 6.

[0037] The tops of the first tilting rod support seat 21 , the second tilting rod support seat 22 and the auxiliary support rod support seat 23 are all provided with arc-shaped support grooves.

[0038] When the ladle 4 is placed on the support seat 2, the first tilting rod 7 is located above the first tilting rod support seat 21 and does not contact the arc-shaped support groove on the first tilting rod support seat 21, and the second tilting rod 8 and the auxiliary support rod 6 are arranged in the arc-shaped support groove at the top of the second tilting rod support seat 22 and the auxiliary support rod support seat 23.

[0039] The pushing mechanism is a hydraulic cylinder 4 , the extension rod of the hydraulic cylinder 4 is hinged to the ladle fixing frame 3 via a first pin 9 , and the cylinder body of the hydraulic cylinder 4 is hinged to the base via a second pin 10 .

[0040] The hydraulic cylinder 4 is connected to an external hydraulic station via a hydraulic oil pipe. A hydraulically controlled one-way valve is installed at the bottom of the hydraulic cylinder 4. This prevents the ladle from sliding down even in the event of a hydraulic system failure, shutdown, pipe burst, or load fluctuation, ensuring equipment safety.

[0041] In actual application, the ladle 4 is set up between the support seats 2 on both sides through the tilting rod and the auxiliary support rod 6. When working, the hydraulic station motor is started, the overflow valve pressure is adjusted to the minimum, and the main oil pump is pressurized for 10 minutes, and the overflow valve pressure is gradually adjusted to make the pressure reach 16Mpa. The hydraulic cylinder 6 of the ladle tilting device is supplied with oil through the connecting oil pipe. The ladle 4 is clamped on the ladle fixing frame 3 by the fulcrum and is lifted up by the hydraulic cylinder 5. Figure 3 As shown, when it reaches a certain angle, the auxiliary support rod 6 first leaves the auxiliary support rod support seat 23 with the second tilting rod 8 as the fulcrum, and the first tilting rod 7 gradually approaches the arc-shaped support groove on the first tilting rod support seat 21, and pouring is carried out into the ingot mold 1 with the second tilting rod 8 as the fulcrum.

[0042] When the hydraulic cylinder continues to lift, the second tilting rod 8 leaves the second tilting rod support seat 22, and the first tilting rod 7 contacts the arc-shaped support groove on the first tilting rod support seat 21, and the casting is carried out with the first tilting rod as the fulcrum. Figure 4 The oil cylinder continues to work until all the molten iron is poured, then the oil cylinder is retracted and all equipment stops working.

[0043] In summary, the present invention utilizes the principle structure of a lever with a variable fulcrum. By setting multiple fulcrums on the tilting device, each fulcrum can control a different tilting angle of the molten iron ladle 4. When the molten iron is cast, the height difference (△y) and the front-to-back distance (△x) on the ingot mold 1 can change with the change of the fulcrum position. Figure 5 As shown; thereby all the molten iron is introduced into the ingot mold 1, which not only reduces the splashing and scouring of the molten iron, but also increases the service life of the ingot mold 1.

[0044] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A variable fulcrum ladle tilting system, comprising a support base, a ladle fixing frame, a ladle and a pushing mechanism, characterized in that: The variable fulcrum ladle tilting system also includes a plurality of tilting rods and auxiliary support rods; the ladle fixing frame is symmetrically arranged on both sides of the ladle, and a plurality of tilting rods and auxiliary support rods are symmetrically arranged on both sides of the ladle at different heights and positions, and the ladle fixing frame and the ladle are connected by the tilting rods and auxiliary support rods; the ladle fixing frame and the ladle are arranged on the support seat, and the pushing mechanism is connected to the ladle fixing frame.

2. The variable fulcrum ladle tilting system according to claim 1, characterized in that: The tilting rod includes a first tilting rod and a second tilting rod. One end of the first tilting rod, the second tilting rod and the auxiliary support rod are respectively welded to the ladle, and the other ends are respectively welded to the ladle fixing frame.

3. The variable fulcrum ladle tilting system according to claim 2, characterized in that: The first tilting rod is arranged at the pouring port of the molten iron ladle, and the second tilting rod and the auxiliary support rod are arranged at the ladle body of the molten iron ladle.

4. The variable fulcrum ladle tilting system according to claim 3, characterized in that: The second tilting rod and the auxiliary support rod are arranged in parallel in a horizontal direction, and the auxiliary support rod is away from the tilting direction.

5. The variable fulcrum ladle tilting system according to claim 4, characterized in that: There are two support seats, which are symmetrically arranged on both sides of the ladle.

6. The variable fulcrum ladle tilting system according to claim 5, characterized in that: The support seat includes a base, on which a first tilting rod support seat, a second tilting rod support seat and an auxiliary support rod support seat are provided; the positions of the first tilting rod support seat, the second tilting rod support seat and the auxiliary support rod support seat are matched with the positions of the first tilting rod, the second tilting rod and the auxiliary support rod.

7. The variable fulcrum ladle tilting system according to claim 6, characterized in that: The tops of the first tilting rod support seat, the second tilting rod support seat and the auxiliary support rod support seat are all provided with arc-shaped support grooves.

8. The variable fulcrum ladle tilting system according to claim 6, characterized in that: The pushing mechanism is a hydraulic oil cylinder, the extension rod of the hydraulic oil cylinder is hinged to the ladle fixing frame through a first pin shaft, and the cylinder body of the hydraulic oil cylinder is hinged to the base through a second pin shaft.

9. The variable fulcrum ladle tilting system according to claim 8, characterized in that: The hydraulic cylinder is connected to an external hydraulic station through a hydraulic oil pipe.

10. The variable fulcrum ladle tilting system according to claim 9, characterized in that: A hydraulically controlled one-way valve is provided at the bottom of the hydraulic cylinder.

Images