An automatic extraction device for the upper water inlet of a ladle

Abstract

The present invention relates to the field of casting technology, and specifically to an automatic pull-out device for the upper water inlet of a ladle. The device comprises a vehicle body, a pull-out assembly, and a hose connected between the pull-out assembly and the vehicle body, and a gripping device is connected to the outer end of the pull-out assembly; the pull-out assembly comprises a pull-out head and a retractable hydraulic column detachably arranged on the pull-out head, and the gripping device is detachably connected to the front end of the hydraulic column; the gripping device comprises a fixed rod, a pin sleeve and a spring sleeved on the fixed rod, a fixed cap arranged at the front end of the fixed rod, a gripping claw radially hinged on the front end of the fixed rod, and a connecting rod with two ends respectively connected to the gripping claw and the pin sleeve, and the spring is arranged between the pin sleeve and the fixed cap. The present invention is ingenious in conception, reasonable in design, and easy to use. The pull-out assembly and the gripping device are inserted into the upper water inlet of the ladle, and the gripping device can automatically hook one end of the upper water inlet of the ladle under the action of the spring and the gripping claw, and the upper water inlet of the ladle can be pulled out under the action of the hydraulic column.

Description

Technical Field

[0001] The invention relates to the technical field of casting, in particular to an automatic pulling-out device for a water inlet of a ladle. Background Art

[0002] Ladle furnace is an off-furnace refining technology that uses electric arc heating under vacuum conditions. It is a device that puts the molten steel initially refined in a general steelmaking furnace into a special ladle for refining. This technology was studied by Daido Steel Co., Ltd. in Japan in 1971. The existing ladle often needs to replace the sliding nozzle during use. The upper slide, lower slide and lower nozzle of the sliding nozzle are relatively easy to remove, while the upper nozzle is tightly connected to the ladle nozzle seat brick through an adhesive, which is a more difficult problem to remove. Therefore, how to design an automatic extraction device for the upper nozzle of a ladle has become our current problem to be solved. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic extraction device for the upper water inlet of a ladle in view of the above-mentioned problem, which effectively solves the problem that the sliding water inlet of the existing ladle often needs to be replaced during use, the upper slide plate, lower slide plate and lower water inlet of the sliding water inlet are relatively easy to remove, while the upper water inlet is tightly connected to the ladle water inlet seat brick by adhesive, which makes it difficult to remove.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] An automatic pull-out device for the upper water inlet of a ladle, characterized in that it comprises a vehicle body, a pull-out assembly and a hose connected between the pull-out assembly and the vehicle body, wherein the outer end of the pull-out assembly is connected to a grabbing device; the pull-out assembly comprises a pull-out head and a retractable hydraulic column detachably arranged on the pull-out head, and the grabbing device is detachably connected to the front end of the hydraulic column; the grabbing device comprises a fixing rod, a pin sleeve and a spring sleeved on the fixing rod, a fixing cap arranged at the front end of the fixing rod, a grabbing claw radially hinged on the front end of the fixing rod, and a connecting rod with two ends respectively hinged to the grabbing claw and the pin sleeve, and the spring is arranged between the pin sleeve and the fixing cap.

[0006] Preferably, the hydraulic column is arranged on the pulling head, a telescopic rod is arranged inside the hydraulic column, a groove for inserting the fixed rod is arranged at the front end of the telescopic rod, a fixing hole passing through the telescopic rod and the groove is arranged at the position of the telescopic rod corresponding to the groove, and a fixing pin for buckling the fixed rod is installed inside the fixing hole.

[0007] Preferably, an outer sheath is provided at one end of the extraction head connected to the hydraulic column, and an observation window for observing the extension and retraction of the hydraulic column is provided on the outer sheath.

[0008] Preferably, one end of the fixing rod connected to the hydraulic column is provided with a mounting hole for passing a fixing pin, and the outer end of the gripping claw is connected with a claw piece.

[0009] Preferably, the claw piece is a fan-shaped structure expanding from an inner end connected to the gripper toward an outer end.

[0010] Preferably, claw teeth are arranged along the outer end of the claw piece toward the extraction head.

[0011] Preferably, a handle is fixedly provided on the outer peripheral surface of one end of the extraction head close to the hose, and the extraction head is divided into a thin section with a handle and a thick section with an outer sheath, and the handle is provided with anti-slip grooves on the outside.

[0012] Preferably, the inner end of the hydraulic column is threaded onto the extraction head and is located inside the outer sheath.

[0013] Preferably, a distribution box is provided on the vehicle body, a switch button is provided on the distribution box, the vehicle body, the distribution box and the switch button are all electrically connected to the mains, and the vehicle body and the distribution box are both electrically connected to the switch button.

[0014] In summary, the present invention has the following beneficial effects:

[0015] The present invention has an ingenious concept, a reasonable design and is easy to use. The pulling-out assembly and the grabbing device are inserted into the upper water inlet of the ladle. The grabbing device can automatically hook one end of the upper water inlet of the ladle under the action of a spring and a gripper. Under the action of a hydraulic column, the upper water inlet of the ladle can be pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0018] Figure 2 It is a schematic diagram of the structure of the extraction assembly of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the grabbing device of the present invention;

[0020] Numbers in the figure: 1. Vehicle body; 2. Hose; 3. Pull-out assembly; 4. Grabbing device; 5. Distribution box; 6. Switch button; 31. Pull-out head; 32. Handle; 33. Observation window; 34. Hydraulic column; 35. Groove; 36. Fixing hole; 37. Fixing pin; 41. Fixing rod; 42. Mounting hole; 43. Pin sleeve; 44. Spring; 45. Fixing cap; 46. Connecting rod; 47. Grab claw; 48. Claw piece. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0023] Embodiment 1:

[0024] A device for automatically pulling out a water inlet of a ladle, characterized in that it comprises a body 1, a pulling out assembly and a hose 2 connected between the pulling out assembly and the body, the outer end of the pulling out assembly 3 is connected to a grabbing device 4; the pulling out assembly 3 comprises a pulling out head 31 and a retractable hydraulic column 34 detachably arranged on the pulling out head, the grabbing device is detachably connected to the front end of the hydraulic column; the grabbing device comprises a fixing rod 41, a pin sleeve 43 and a spring 44 sleeved on the fixing rod, a fixing cap 45 arranged at the front end of the fixing rod, a grabbing claw 47 radially hinged to the front end of the fixing rod, and a connecting rod 46 whose two ends are respectively hinged to the grabbing claw and the pin sleeve, and the spring is arranged between the pin sleeve and the fixing cap.

[0025] The hydraulic column is arranged on the extraction head, and a telescopic rod is arranged inside the hydraulic column, and a groove 35 for inserting the fixing rod is arranged at the front end of the telescopic rod, and a fixing hole 36 penetrating the telescopic rod and the groove is arranged at the position of the telescopic rod corresponding to the groove, and a fixing pin 37 for buckling the fixing rod is installed inside the fixing hole 36. The inner end of the hydraulic column is screwed to the extraction head and is located inside the outer sheath.

[0026] Embodiment 2:

[0027] The difference from the above embodiment is that an outer sheath is provided at one end of the extraction head connected to the hydraulic column, and an observation window 33 for observing the extension and retraction of the hydraulic column is provided on the outer sheath.

[0028] Embodiment three:

[0029] The difference from the above embodiment is that the end of the fixing rod connected to the hydraulic column is provided with a mounting hole 42 for inserting the fixing pin, and the outer end of the gripper is connected with a claw piece 48. The claw piece is a fan-shaped structure that expands from the inner end connected to the gripper to the outer end. The claw piece is used to increase the gripping area and facilitate gripping.

[0030] Embodiment 4:

[0031] The difference from the above embodiment is that the outer end of the claw piece is provided with claw teeth 481 along the upper side toward the extraction head. The claw teeth can penetrate into the gap between the upper water inlet and the base, making it easy to remove the upper water inlet.

[0032] Embodiment 4:

[0033] The difference from the above embodiment is that a handle 32 is fixedly provided on the outer peripheral surface of the extraction head 31 close to the hose, and the extraction head is divided into a thin section with a handle and a thick section with an outer sheath, and the handle is provided with anti-slip grooves.

[0034] Embodiment five:

[0035] The difference from the above embodiment is that a distribution box 5 is provided on the vehicle body 1, and a switch button 6 is provided on the distribution box 5. The vehicle body 1, the distribution box 5 and the switch button 6 are all electrically connected to the mains, and the vehicle body 1 and the distribution box 5 are both electrically connected to the switch button 6.

[0036] Working principle: When the present invention is used, the vehicle body 1 provides power, which is transmitted through the hose 2 to provide hydraulic pressure for the pull-out assembly 3, so that the pull-out assembly 3 can pull out the water inlet, and the pull-out assembly 3 and the grabbing device 4 are inserted into the inner end of the water inlet, and the grabbing device 4 can be automatically separated to grab the inner end of the water inlet. Under the telescopic action of the hydraulic column of the pull-out assembly 3, the grabbing claw grabs the inner end of the water inlet and can pull out the water inlet. Hold the handle 32, which is convenient for controlling and grabbing the pull-out head 31. The telescopic condition of the hydraulic column 34 can be seen from the observation window 33. The groove 35 is used to install the grabbing device 4. The mounting hole 42 at one end of the grabbing device 4 is aligned with the fixing hole 36, and then the fixing pin 37 is passed through the fixing hole 36 to fix the grabbing device 4 to the front end of the telescopic rod of the hydraulic column 34. Under the action of 44, the claws 47 are separated and enlarged. When the grabbing device 4 is extended into the water inlet, the claws 47 are squeezed, and the connecting rod 46 and the pin sleeve 43 are moved toward the pulling head along the fixed rod 41. When the claws 47 are fully extended into the inner side of the water inlet, the claws 47 rebound under the action of the spring 44, and the grabbing device 4 is stretched so that the claws 47 are stuck at the inner end of the water inlet. The claws 48 increase the grabbing area for easy grabbing. The fixing cap 45 is used to limit the inner end of the claws 47 on the fixed rod 41, so that the claws will not fold forward and prevent the claws 47 from falling off. After the grabbing device 4 is stuck on the water inlet, the water inlet is pulled out under the action of the hydraulic column 34. The distribution box 5 can provide electricity to the vehicle body 1, so that the vehicle body 1 can provide hydraulic pressure. When in use, turn on the switch button 6 first.

[0037] Compared with the prior art, the present invention has the following advantages: ingenious conception, reasonable design, and easy use. The pulling-out assembly and the grabbing device are inserted into the upper water inlet of the ladle. The grabbing device can automatically hook one end of the upper water inlet of the ladle under the action of the spring and the gripper. Under the action of the hydraulic column, the upper water inlet of the ladle can be pulled out.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic extraction device for the upper water inlet of a ladle, characterized in that: The vehicle comprises a vehicle body (1), a pulling assembly (3), and a hose (2) connected between the pulling assembly (3) and the vehicle body (1); the outer end of the pulling assembly (3) is connected to a gripping device (4); the pulling assembly (3) comprises a pulling head (31) and a retractable hydraulic column (34) detachably arranged on the pulling head (31); the gripping device (4) is detachably connected to the front end of the hydraulic column (34); the gripping device (4) comprises a fixing rod (41), a pin sleeve (43) and a spring (44) sleeved on the fixing rod (41), and a fixing cap (45) arranged at the front end of the fixing rod (41). 45), a claw (47) hinged radially to the front end of the fixing rod (41) and a connecting rod (46) whose two ends are respectively hinged to the claw (47) and the pin sleeve (43), and the spring (44) is arranged between the pin sleeve (43) and the fixing cap (45); the outer end of the claw (47) is connected to a claw piece (48); the claw piece (48) is a fan-shaped structure expanding from the inner end connected to the claw (47) to the outer end; the outer end of the claw piece (48) is provided with claw teeth (481) for penetrating into the gap between the upper water inlet and the base, along the upper side toward the extraction head (31).

2. The automatic extraction device for the upper water inlet of a ladle according to claim 1, characterized in that: The hydraulic column (34) is arranged on the extraction head (31), and a telescopic rod is arranged inside the hydraulic column (34). A groove (35) for inserting the fixing rod is arranged at the front end of the telescopic rod, and a fixing hole (36) penetrating the telescopic rod and the groove (35) is arranged at a position of the telescopic rod corresponding to the groove (35). A fixing pin (37) for buckling the fixing rod (41) is installed inside the fixing hole (36).

3. The automatic extraction device for the upper water inlet of a ladle according to claim 1, characterized in that: An end of the extraction head (31) connected to the hydraulic column (34) is provided with an outer sheath, and an observation window (33) for observing the extension and retraction of the hydraulic column is provided on the outer sheath.

4. The automatic extraction device for the upper water inlet of a ladle according to claim 2, characterized in that: One end of the fixing rod (41) connected to the hydraulic column (34) is provided with a mounting hole (42) for passing a fixing pin (37).

5. The automatic extraction device for the upper water inlet of a ladle according to claim 3 is characterized in that: A handle (32) is fixedly provided on the outer peripheral surface of one end of the extraction head (31) close to the hose (2); the extraction head (31) is divided into a thin section having the handle (32) and a thick section having an outer sheath; and the handle (32) is provided with anti-slip grooves on the outside.

6. The automatic extraction device for the upper water inlet of a ladle according to claim 3, characterized in that: The inner end of the hydraulic column (34) is threadedly connected to the extraction head (31) and is located inside the outer sheath.

7. The automatic extraction device for the upper water inlet of a ladle according to claim 1, characterized in that: The vehicle body (1) is provided with a distribution box (5), and the distribution box (5) is provided with a switch button (6). The vehicle body (1), the distribution box (5) and the switch button (6) are all electrically connected to the mains, and the vehicle body (1) and the distribution box (5) are both electrically connected to the switch button (6).

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