Ladle tipping system with variable fulcrum

Abstract

The invention 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 is variable in fulcrum is utilized, a plurality of tipping rods are arranged on the tipping device to serve as fulcrums, each fulcrum can control different tipping angles of a ladle, the height difference and the front-back distance of molten iron on an ingot mold during casting can change along with changes of the positions of the fulcrums, 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 invention relates to the technical field of casting equipment, in particular to a variable fulcrum ladle tilting system. Background Art

[0002] Molten iron casting is an important link in the silicon alloy production process. The furnace eye is opened by the electric furnace, and the molten iron flows into the ladle through the tap hole. The ladle filled with molten iron is pulled by the tap traction trolley to the casting workshop for casting through auxiliary pouring equipment. Among them, the auxiliary equipment used for casting includes traditional overhead crane main and auxiliary hooks to assist ingot mold casting, more professional and advanced ladle tilting equipment casting, and molten iron casting machine casting with a high degree of automation.

[0003] For example, in the utility model patent with the authorization announcement number CN214161382U, a device for tilting a steel ladle or an iron ladle forward and backward is disclosed, which includes a base, a tilting bracket, a lifting cylinder, a bottom bracket, a water ladle and a back-pull cylinder. A column is provided on the base, the tilting bracket is hingedly connected to the column, the cylinder body of the lifting cylinder is installed on the base, and its piston rod is hingedly connected to the tilting bracket, the cylinder body of the back-pull cylinder is installed on the side of the upper part of the tilting bracket close to the column, one side of the bottom bracket is hingedly connected to the side of the tilting bracket away from the back-pull cylinder, and the other side of the bottom bracket is hingedly connected to the piston rod of the back-pull cylinder, and the water ladle is detachably fixed on the bottom bracket. However, in the above scheme, the molten iron tilting device is only provided with one fixed fulcrum, and the molten iron ladle is fixed on the tilting bracket. During casting, the molten iron is fixed to the landing point and the front and rear distance of the ingot mold. During casting, the height difference between the molten iron ladle mouth and the upper surface of the ingot mold is large, which is easy to cause molten iron splashing and ingot mold scouring. Summary of the invention

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

[0005] To achieve the above-mentioned purpose, 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 a plurality of tilting rods and an auxiliary support rod 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 present invention is further configured as follows: the tilting rod comprises 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 body of the molten iron ladle.

[0008] The present invention is further configured such that: 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 present invention is further configured as follows: there are two support seats in total, which are symmetrically arranged on both sides of the 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 arranged; 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 such 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.

[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 present invention is further configured as follows: the pushing mechanism is a hydraulic cylinder, the extension rod of the hydraulic cylinder is hinged to the ladle fixing frame via a first pin shaft, and the cylinder body of the hydraulic cylinder is hinged to the base via a second pin shaft.

[0014] When the hydraulic cylinder is activated to drive 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, and the second tilting rod is used as the fulcrum for pouring. When the hydraulic cylinder continues to lift, the second tilting rod leaves the second tilting rod support seat, and the first tilting rod contacts the arc-shaped support groove on the first tilting rod support seat, and the first tilting rod is used as the fulcrum for pouring.

[0015] The present invention is further configured such that: the hydraulic cylinder is connected to an external hydraulic station via a hydraulic oil pipe.

[0016] The present invention 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 invention are as follows:

[0018] 1. The present invention utilizes the principle structure of a lever with a variable fulcrum. By arranging a plurality of 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 can be 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 hydraulic lock, i.e., a hydraulically controlled one-way valve, is installed at the bottom of the hydraulic element cylinder of the present invention, which can prevent the ladle from sliding down even in the event of hydraulic system failure, shutdown, pipe burst, load fluctuation, etc., thereby 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 accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a 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 It is a schematic diagram of a variable fulcrum ladle tilting system with the second tilting rod as the fulcrum.

[0024] Figure 4 It is a 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 height difference and front-to-back distance on the ingot mold during casting as the fulcrum position changes.

[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 shaft, 10. Second pin shaft. 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 the field without making any creative work should all fall within the scope of protection of the present invention.

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

[0030] Example:

[0031] like Figure 1-Figure 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 comprises 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 arranged 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 arranged 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] Combination 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 arranged; 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 matched 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 grooves 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 shaft 9 , and the cylinder body of the hydraulic cylinder 4 is hinged to the base via a second pin shaft 10 .

[0040] The hydraulic cylinder 4 is connected to an external hydraulic station through a hydraulic oil pipe. A hydraulically controlled one-way valve is provided at the bottom of the hydraulic cylinder 4. Even in the event of a hydraulic system failure, shutdown, pipe burst, load fluctuation, etc., the ladle can be prevented from sliding down, thereby ensuring the safety of the equipment.

[0041] In actual application, the ladle 4 is set 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 overflow valve pressure is gradually adjusted after the main oil pump is pressurized for 10 minutes 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 lifted up by the hydraulic cylinder 5. Figure 3 As shown, when a certain angle is reached, 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 first tilting rod is used as a fulcrum for casting. Figure 4 The oil cylinder continues to work until all the molten iron is cast, 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 a plurality of fulcrums on the tilting device, each fulcrum can control different tilting angles 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 present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A variable fulcrum ladle tilting system, comprising a support seat, 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 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.

2. The variable fulcrum ladle tilting system according to claim 1, characterized in that: The tilting rod comprises a first tilting rod and a second tilting rod. One ends 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 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 the 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 arranged; the positions of the first tilting rod support seat, the second tilting rod support seat and the auxiliary support rod support seat match 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 cylinder, the extension rod of the hydraulic cylinder is hinged to the iron ladle fixing frame through a first pin shaft, and the cylinder body of the hydraulic 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 arranged at the bottom of the hydraulic cylinder.

Images