High-reliability steel ladle suspension arm fixing device

Abstract

The utility model discloses a high-reliability steel ladle suspension arm fixing device, which belongs to the technical field of steel ladle devices and comprises steel ladle trunnions arranged on two sides of a steel ladle tank body, a suspension arm is mounted on the steel ladle trunnions through shaft holes, a baffle is mounted on the steel ladle trunnions on the outer side of the suspension arm, and the baffle is attached to the suspension arm. And a fastening snap ring is mounted on the steel ladle trunnion on the outer side of the baffle plate. By changing an original steel ladle suspension arm fixing structure, the axial force, the torsion and the external force which are originally borne by a bolt for fixing the suspension arm are transferred to a more reliable trunnion, so that the safety of the steel ladle suspension arm is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ladle device technical field, concretely is a high reliability's ladle suspension arm fixing device. BACKGROUND

[0002] The ladle is mainly used for the steelmaking plant, the foundry to undertake molten steel, carries on the pouring operation before the flat furnace, the electric furnace or the converter, is the storage and transportation tank for containing molten steel in the molten steel transfer process, has the storage, the moisture retention etc. functions in the transfer, also can carry out the refining treatment etc. process operation to the molten steel in the ladle.

[0003] As Figure 7 The conventional ladle suspension arm fixing device is installed the baffle through the outside of the connecting place of the suspension arm and the trunnion, sets up a circle high strength bolt on the baffle for fixing the suspension arm, and the structure is relatively simple. However, in the ladle transfer process, the shaking of the molten steel is easy to cause the bolt on the baffle to bear the axial force, and the hoisting of the ladle is also easy to hit the bolt on the baffle, and when the ladle is overturned, the bolt on the baffle is also easy to bear the torsion, all above can cause the bolt to break and cause the metallurgical safety accident. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a high reliability's ladle suspension arm fixing device, solves the bolt breakage problem on the baffle in the related art.

[0005] A high reliability's ladle suspension arm fixing device, including the ladle trunnion set up on both sides of the ladle tank body, the suspension arm is installed on the ladle trunnion through the shaft hole, the baffle is installed on the ladle trunnion outside the suspension arm, the baffle is pasted with the suspension arm, and the fastening snap ring is installed on the ladle trunnion outside the baffle.

[0006] Further, the ladle trunnion includes the suspension arm installation site, the baffle installation site and the fastening snap ring installation site that are sequentially arranged, the diameter of the suspension arm installation site is greater than the diameter of the baffle installation site, the diameter of the baffle installation site is greater than the diameter of the fastening snap ring installation site, and the diameter of the fastening snap ring installation site is less than the diameter of the trunnion end.

[0007] Further, the diameter of the baffle is greater than the diameter of the suspension arm installation site.

[0008] Further, the fastening snap ring is split type fastening snap ring, including first half ring and second half ring, first half ring and second half ring are combined after and are fastened through the bolt.

[0009] Further, the suspension arm above the baffle is provided with the transverse guard plate.

[0010] Further, the baffle is provided with the square hole installed on the ladle trunnion in the middle.

[0011] Furthermore, the baffle is disc-shaped, and multiple outwardly opening slots are evenly arranged around the perimeter of the disc-shaped baffle. The transverse guard plate is provided with downward protrusions that are adapted to the slots.

[0012] Furthermore, protective plates are installed on the booms located on both sides of the baffle, and the upper ends of the two protective plates are connected to the two ends of the horizontal guard plate.

[0013] Furthermore, the ladle trunnion is fixedly connected to the ladle tank body via a ladle trunnion seat; the ladle trunnion seat is fixed to the ladle tank body by welding and passes the flaw detection test.

[0014] In summary, this utility model improves the safety of the ladle boom by changing the fixing structure of the ladle boom, transferring the axial force, torque, and external force originally borne by the bolts fixing the boom to the more reliable trunnion, thereby effectively solving the above-mentioned problems existing in the background art.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model changes the fixing structure of the ladle boom by setting up fastening clasps, boom mounting positions, baffle mounting positions, and fastening clasps mounting positions, thereby transferring the axial force, torque, and external force originally borne by the high-strength bolts fixing the boom to the more reliable ladle trunnion, thus avoiding safety accidents caused by bolt breakage.

[0017] 2. The high-reliability steel ladle boom fixing device described in this utility model is simple to manufacture, reduces metallurgical safety risks, and can be widely applied in metallurgical enterprises. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Appendix Figure 1 This is a sectional view of the steel ladle boom fixing device of this utility model.

[0020] Appendix Figure 2 This is an enlarged view of part A of the steel ladle boom fixing device of this utility model.

[0021] Appendix Figure 3 This is a schematic diagram of the ladle trunnion of the ladle boom fixing device of this utility model.

[0022] Appendix Figure 4 This is a schematic diagram of the fastening retainer of the steel ladle boom fixing device of this utility model.

[0023] Figure 2 is a schematic view of the baffle plate of the ladle crane arm fixing device of the present application. Figure 5 Figure 3 is a schematic view of the side of the ladle crane arm fixing device of the present application.

[0024] Figure 4 is a schematic view of the original ladle crane arm fixing device. Figure 6 Figure 5 is a schematic view of the side of the ladle crane arm fixing device of the present application.

[0025] Figure 6 is a schematic view of the original ladle crane arm fixing device. Figure 7 Figure 7 is a schematic view of the original ladle crane arm fixing device.

[0026] Figure 8 is a schematic view of the original ladle crane arm fixing device. Figure 1 Figure 9 is a schematic view of the original ladle crane arm fixing device.

[0027] 1 - ladle tank body; 2 - protective plate; 3 - crane arm; 4 - transverse guard plate; 5 - ladle trunnion seat; 6 - ladle trunnion; 6-1 - crane arm mounting position; 6-2 - baffle plate mounting position; 6-3 - fastening snap ring mounting position; 6-4 - trunnion end; 7 - baffle plate; 7-1 - square hole, 7-2 - clamping groove; 8 - fastening snap ring; 8-1 - first half ring; 8-2 - second half ring, 8-3 - fastening bolt; 9 - protrusion. DETAILED DESCRIPTION

[0028] To further illustrate the embodiments, the present application provides drawings which are part of the disclosure of the present application, which mainly serve to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. Those of ordinary skill in the art should be able to understand other possible implementations and advantages of the present application by referring to these contents. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] Embodiment 1

[0030] The present embodiment provides a high-reliability ladle crane arm fixing device as shown in Figures 1-2 which comprises ladle trunnions 6 arranged on both sides of a ladle tank body 1, the ladle trunnions 6 being fixedly connected with the ladle tank body 1 through a ladle trunnion seat 5; the ladle trunnion seat 5 is fixed to the ladle tank body 1 by welding and has passed the flaw detection. A crane arm 3 is mounted on the ladle trunnions 6 through a shaft hole, a baffle plate 7 is mounted on the ladle trunnions 6 outside the crane arm 3, the baffle plate 7 is attached to the crane arm 3, and a fastening snap ring 8 is mounted on the ladle trunnions 6 outside the baffle plate 7. The baffle plate 7 is provided with a square hole 7-1 mounted on the ladle trunnions 6. As shown in Figure 4 , the fastening snap ring 8 is a split fastening snap ring 8, which comprises a first half ring 8-1 and a second half ring 8-2, and the first half ring 8-1 and the second half ring 8-2 are combined and fastened by high-strength bolts.

[0031] During installation, the hanger arm 3 is first installed on the ladle trunnion 6 through the shaft hole, then the baffle 7 of the square hole 7-1 is installed on the ladle trunnion 6, and the baffle 7 is attached to the hanger arm 3, after which the split fastening ring 8 is installed, and the two ends of the split fastening ring 8 are fixed by high-strength bolts. Through the above setting, the original hanger arm 3 fixing structure is changed, and the axial force, torsional force and external force originally borne by the bolt fixing the hanger arm 3 are transferred to the more reliable ladle trunnion 6, thereby improving the safety of the hanger arm 3.

[0032] Embodiment 2

[0033] The difference between this embodiment and embodiment 1 is that, as shown in Figure 3 Further, the ladle trunnion 6 comprises, in sequence, a hanger arm mounting site 6-1, a baffle mounting site 6-2 and a fastening ring mounting site 6-3, the diameter of the hanger arm mounting site 6-1 is greater than that of the baffle mounting site 6-2, the diameter of the baffle mounting site 6-2 is greater than that of the fastening ring mounting site 6-3, and the diameter of the baffle 7 is greater than that of the hanger arm mounting site 6-1; the diameter of the fastening ring mounting site 6-3 is smaller than that of the trunnion end 6-4. Through the above setting, the hanger arm 3, the baffle 7 and the fastening ring 8 mounted on the ladle trunnion 6 can be closely attached, and the hanger arm 3 can be more firmly fixed on the ladle trunnion 6 by the baffle 7 and the fastening ring 8.

[0034] Further, as shown in Figure 5 and as shown in 6, a transverse guard plate 4 is arranged on the hanger arm 3 above the baffle 7; a protective plate 2 is arranged on each of the hanger arms 3 on both sides of the baffle 7, and the upper ends of the two protective plates 2 are connected to the two ends of the transverse guard plate 4. The baffle 7 is disc-shaped, and a plurality of outwardly opening clamping grooves 7-2 are uniformly arranged on the periphery of the disc-shaped baffle 7, and a downward protrusion 9 is arranged on the transverse guard plate 4. The protrusion 9 is matched with the clamping groove 7-2. Through the arrangement of the protrusion 9 and the clamping groove 7-2, the hanger arm 3 can be preliminarily fixed by the baffle 7.

[0035] In summary, the original hanger arm 3 fixing structure is changed, and the axial force, torsional force and external force originally borne by the bolt fixing the hanger arm 3 (as shown in Figure 7 ) are transferred to the more reliable ladle trunnion 6, thereby improving the safety of the hanger arm 3, and effectively solving the above problems existing in the background art.

[0036] The above is only a preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the utility model.

Claims

1. A ladle crane boom fixing device with high reliability, characterized in that, The ladle trunnion (6) is arranged on both sides of the ladle body (1), the hanger arm (3) is installed on the ladle trunnion (6) through the shaft hole, the baffle (7) is installed on the outer side of the ladle trunnion (6) of the hanger arm (3), the baffle (7) is attached to the hanger arm (3), the fastening snap ring (8) is installed on the outer side of the ladle trunnion (6) of the baffle (7). The ladle trunnion (6) comprises a hanger arm mounting part (6-1), a baffle mounting part (6-2) and a fastening snap ring mounting part (6-3) arranged in sequence, the diameter of the hanger arm mounting part (6-1) is greater than that of the baffle mounting part (6-2), the diameter of the baffle mounting part (6-2) is greater than that of the fastening snap ring mounting part (6-3), and the diameter of the fastening snap ring mounting part (6-3) is smaller than that of the trunnion end (6-4).

2. The ladle crane boom fixing device of claim 1, wherein The diameter of the baffle (7) is greater than that of the hanger arm mounting part (6-1).

3. The ladle crane boom fixing device of claim 1, wherein The baffle (7) is provided with a square hole (7-1) arranged on the ladle trunnion (6) in the middle.

4. The ladle crane boom fixing device of claim 1, wherein The fastening snap ring (8) is a split fastening snap ring (8) comprising a first half ring (8-1) and a second half ring (8-2), and the first half ring (8-1) and the second half ring (8-2) are combined and fastened by bolts.

5. The ladle crane boom fixing device of claim 1, wherein The hanger arm (3) above the baffle (7) is provided with a transverse guard plate (4).

6. The ladle crane boom fixation device of claim 4, wherein The baffle (7) is disc-shaped, and a plurality of outwardly opening clamping grooves (7-2) are uniformly arranged on the periphery of the disc-shaped baffle (7), the transverse guard plate (4) is provided with a downward protrusion (9), and the protrusion (9) is matched with the clamping groove (7-2).

7. The ladle crane boom fixation device of claim 1, wherein The hanger arm (3) on both sides of the baffle (7) is provided with a protection plate (2), and the upper ends of the two protection plates (2) are connected with the two ends of the transverse guard plate (4).

8. The ladle crane boom fixation device of claim 1, wherein, The ladle trunnion (6) is fixedly connected with the ladle body (1) through the ladle trunnion seat (5).

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