Mounting and positioning tool for upper nozzle of steel ladle

Abstract

The utility model relates to a steel ladle upper nozzle installing and positioning tool which comprises a main supporting rod, a positioning disc and a positioning core, a positioning frame is vertically and fixedly arranged at one end of the main supporting rod, a threaded hole is formed in the center of the positioning disc, the positioning core is cylindrical, and an annular boss is coaxially arranged in the middle of the inner side face of the positioning core. A screw is installed in a through hole in the center of the annular boss, the outer end of the screw is sleeved with the threaded hole to fixedly connect the positioning core and the positioning disc, the positioning disc is in a cross shape and comprises a first square base and a second square base which are perpendicular to each other, and clamping heads are arranged on the lower edge portions of the two ends of the first square base. The positioning core of the mounting and positioning tool can be conveniently connected with or detached from the positioning disc of the main supporting rod through the built-in screw, so that the tool can correspond to water feeding openings of different specifications only by replacing positioning cores of different sizes, and the universality and the flexibility of the tool are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of steelmaking refractory material installation tools, in particular to a ladle upper water inlet installation positioning tool. Background Art

[0002] The ladle is a necessary equipment for steel mills to carry out refining and continuous casting of molten steel. Therefore, the continuous and stable operation of the ladle is a necessary condition for increasing the total production and maximizing the benefits. However, as a channel for the steel flow, the ladle water inlet is often unable to continue to be used due to the melting loss and expansion of the aperture during use. It needs to be removed and replaced after cooling down, and then baked and put back online for use.

[0003] At present, when the ladle water inlet is installed on the line, a rod-shaped tool is usually inserted into the steel flow channel of the water inlet, and a disc insertion depth limit is set at the end of the rod body. The specific structure is shown in the attached Figure 6 ; The problem with using this tool is that one rod-shaped tool can only be used for one type of water inlet, and its versatility and flexibility are poor. After the rod body is inserted into the water inlet and put back on line, it is necessary to manually hold the rod body for positioning and baking. Manual positioning and baking are subject to many interference factors and have poor accuracy. It is easy to have installation misalignment problems, and there are safety hazards such as steel seepage and leakage. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a ladle upper water inlet installation and positioning tool.

[0005] The technical solution of the utility model is:

[0006] A ladle upper water inlet installation positioning tool comprises a main support rod, a positioning plate and a positioning core. The positioning frame is vertically fixedly arranged at one end of the main support rod. A threaded hole is arranged in the center of the positioning plate, and the threaded hole passes through the positioning plate. The positioning core is cylindrical. An annular boss is coaxially arranged in the middle of the inner side surface of the positioning core. A screw is installed in the through hole in the center of the annular boss. The size of the through hole is larger than the size of the thread so that the screw can slide freely in the through hole. The outer end of the screw is inserted into the threaded hole to fix the positioning core and the positioning plate.

[0007] Preferably, the positioning plate is in the shape of a cross, and comprises a square seat A and a square seat B which are perpendicular to each other, and the lower edges of both ends of the square seat A are provided with a clamping head which is an overall square.

[0008] Preferably, the bottom surface of the clamp head and the bottom surface of the square seat armor form a positioning step, the inner side surface of the positioning step is an arc-shaped surface, and the center of the arc-shaped surface coincides with the center of the positioning core.

[0009] Preferably, two lead-in slopes are symmetrically arranged on both sides of the upper surface of the chuck, and a connecting plane is arranged between the two lead-in slopes.

[0010] Preferably, the bottom surfaces of both ends of the square seat B are provided with square notches, and the square notches extend to the outer end surfaces of the square seat.

[0011] Preferably, an oblique support rod is provided between the middle part of the square seat A and the square seat B and the lower end part of the main support rod, and the oblique support rod is connected to the square seat and the main support rod by welding.

[0012] Preferably, an auxiliary grip is vertically provided on the main support rod, and the auxiliary grip is arranged at one end close to the positioning plate. The main support rod and the auxiliary grip are designed to be in a size suitable for being held by both hands of a human body.

[0013] Preferably, the main support rod and the auxiliary grip rod are both hollow rods, and a plugging head is provided at the outer end of the main support rod.

[0014] Preferably, the edge of the outer end of the positioning core is provided with a chamfer for smooth insertion into the upper water inlet flow steel hole.

[0015] The beneficial technical effects of the utility model are:

[0016] (1) The positioning core of the installation positioning tool can be conveniently connected or disassembled with the positioning plate of the main support rod through built-in screws. Therefore, the tool can be made to correspond to water inlets of different specifications by simply replacing positioning cores of different sizes, which effectively improves the versatility and flexibility of the tool.

[0017] (2) The setting clamp on the outer side of the positioning plate of the installation positioning tool cooperates and locks with the base of the sliding nozzle mechanism, so there is no need to manually hold the rod body for positioning and baking. It has high accuracy and is not prone to installation misalignment problems. In addition, a positioning step is formed between the clamp and the positioning plate to locate the outer diameter of the upper nozzle on the outside, and assist the positioning core for installation positioning, thereby ensuring the stability and positioning accuracy of the upper nozzle during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a main structural schematic diagram of the utility model;

[0020] Figure 3 yes Figure 2 AA section structural diagram;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the utility model inserted into the water inlet;

[0022] Figure 5 It is a schematic diagram of the internal structure of the utility model inserting the water inlet;

[0023] Figure 6It is a structural schematic diagram of an existing water inlet installation positioning tool.

[0024] In the figure, 11. main support rod, 12. positioning plate, 121. threaded hole, 122. square seat A, 123. square seat B, 124. clamp, 125. positioning step, 126. introduction slope, 127. square notch, 13. positioning core, 131. annular boss, 132. through hole, 133. chamfer, 14. screw, 15. diagonal support rod, 16. auxiliary grip rod, 17. upper water inlet, 18. fire clay, 201. rod-shaped tool, 202. plate body. DETAILED DESCRIPTION

[0025] Example 1, see the attached specification Figure 1-5 , a tool for installing and positioning a ladle water inlet, comprises a main support rod 11, a positioning plate 12 and a positioning core 13. The positioning frame is vertically fixedly arranged at one end of the main support rod 11, and a threaded hole 121 is provided in the center of the positioning plate 12. The threaded hole 121 is coaxially arranged with the main support rod 11, and the positioning core 13 is cylindrical. An annular boss 131 is coaxially provided in the middle part of the inner side surface of the positioning core 13. The annular boss 131 and the positioning core 13 are coaxially arranged, and a screw 14 is installed in the through hole 132 in the center of the annular boss 131. The outer end of the screw 14 is inserted into the threaded hole 121 to fix the positioning core 13 and the positioning plate 12 in connection. The positioning core 13 can be conveniently connected or disassembled with the positioning plate 12 of the main support rod 11 through the built-in screw 14. The tool can correspond to water inlets 17 of different specifications by simply replacing positioning cores 13 of different sizes, which effectively improves the versatility and flexibility of the tool.

[0026] An auxiliary grip 16 is vertically provided on the main support rod 11, and the auxiliary grip 16 is arranged at one end close to the positioning plate 12. Both the main support rod 11 and the auxiliary grip 16 are hollow rods. When in use, one hand holds the main support partition and the other hand holds the auxiliary grip 16. The holding stability is good, and the hollow rod is conducive to reducing the weight of the tool, making it easy to operate.

[0027] In this embodiment, a chamfer 133 is provided at the edge of the outer end of the positioning core 13 for smoothly inserting into the flow steel hole of the upper water inlet 17, thereby improving the installation efficiency.

[0028] Example 2, see the attached specification Figure 1-5, which is basically the same as the first embodiment, except that the positioning plate 12 is arranged in a cross shape, including a square seat A 122 and a square seat B 123 which are perpendicular to each other, and a clamping head 124 is provided at the lower edge of both ends of the square seat A 122, and two leading inclined surfaces 126 are symmetrically provided on both sides of the upper surface of the clamping head 124, and the clamping head 124 is locked with the clamping groove provided on the base of the sliding water gate mechanism through the clamping head 124, so that there is no need to manually hold the rod body for positioning and baking, with high precision, and it is not easy to have the problem of installation misalignment, and the leading inclined surface 126 can improve the smoothness of the docking between the clamping head 124 and the base, and it is easy to operate.

[0029] The bottom surface of the clamping head 124 and the bottom surface of the square seat armor 122 form a positioning step 125. The inner side surface of the positioning step 125 is an arc-shaped surface. The center of the arc-shaped surface coincides with the center of the positioning core 13. The arc-shaped surface of the positioning step 125 can be matched and fitted on the outer side surface of the water inlet 17, and positioned at the outer diameter of the water inlet 17 to assist the positioning core 13 in installation and positioning, thereby ensuring the stability of the positioning and installation of the water inlet 17.

[0030] The bottom surfaces of both ends of the square seat B 123 are provided with square notches 127, and the square notches 127 avoid the edge of the upper water inlet 17 to prevent the burrs on the edge of the upper water inlet 17 from being supported on the bottom surface of the square seat B 123, so as to ensure that the positioning core 13 is inserted and installed in place;

[0031] An oblique support rod 15 is provided between the middle part of the square seat A 122 and the square seat B 123 and the lower end of the main support rod 11, and the oblique support rod 15 is used to reinforce and support the square seat and the main support rod 11 to ensure the overall structural strength of the tool.

[0032] The method of using the installation positioning tool is as follows: after the lower line of the water inlet 17 which cannot be used any longer due to aperture melting or expansion is removed from the sliding water inlet, a new water inlet 17 is replaced, and fire mud 18 is applied to the aperture of the outer end of the new water inlet 17, and then the positioning core 13 is inserted into the aperture, and the fire mud 18 is squeezed between the positioning core 13 and the aperture to ensure the firmness of the positioning core 13 inserted into the aperture. After the positioning core 13 is inserted into place, the arc surface of the positioning step 125 of the clamp 124 fits and clamps on the outer side surface of the water inlet 17, and the positioning core 13 is combined to achieve internal and external fixation. Then, the main support rod 11 and the auxiliary grip rod 16 are held to insert the water inlet into the sliding water inlet and the water inlet 17 is rotated. The clamp 124 rotates and cooperates with the base of the sliding water inlet mechanism to lock. After the water inlet 17 is baked and installed stably, the main support rod 11 is rotated to unlock it, and the positioning tool is pulled out to complete the water inlet installation.

Claims

1. A ladle water inlet installation and positioning tool, characterized by: It includes a main support rod, a positioning plate and a positioning core. The positioning frame is vertically fixed at one end of the main support rod. A threaded hole is provided in the center of the positioning plate. The positioning core is cylindrical. An annular boss is coaxially provided in the middle of the inner side surface of the positioning core. A screw is installed in the through hole in the center of the annular boss. The outer end of the screw is inserted into the threaded hole to fix the positioning core and the positioning plate.

2. A ladle upper nozzle installation and positioning tool according to claim 1, characterized in that: The positioning plate is in the shape of a cross, and comprises a square seat A and a square seat B which are perpendicular to each other. The lower edges of both ends of the square seat A are provided with clamping heads.

3. A ladle upper nozzle installation and positioning tool according to claim 2, characterized in that: The bottom surface of the clamp head and the bottom surface of the square seat armor form a positioning step, the inner side surface of the positioning step is an arc surface, and the center of the arc surface coincides with the center of the positioning core.

4. A ladle upper nozzle installation and positioning tool according to claim 3, characterized in that: Two guide slopes are symmetrically arranged on both sides of the upper surface of the clamping head.

5. The ladle upper nozzle installation and positioning tool according to claim 2, characterized in that: The bottom surfaces of both ends of the square seat B are provided with square notches.

6. A ladle upper nozzle installation and positioning tool according to claim 2, characterized in that: An oblique support rod is provided between the middle part of the square seat A and the square seat B and the lower end part of the main support rod.

7. The ladle upper nozzle installation and positioning tool according to claim 1, characterized in that: An auxiliary gripping rod is vertically arranged on the main supporting rod, and the auxiliary gripping rod is arranged at one end close to the positioning plate.

8. The ladle upper nozzle installation and positioning tool according to claim 7, characterized in that: The main support rod and the auxiliary grip rod are both hollow rods.

9. The ladle upper nozzle installation and positioning tool according to claim 1, characterized in that: The edge of the outer end of the positioning core is provided with a chamfer for facilitating insertion into the steel hole of the upper water inlet.

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