Quick dismounting tool for spline shaft sleeve of blast furnace tapping machine rock drill

Abstract

The utility model discloses a blast furnace tapping machine rock drill spline shaft sleeve quick dismounting tool, a tapping machine comprises a tapping machine crossbeam, a rock drill is arranged at one end of the bottom of the tapping machine crossbeam, and a baffle is arranged at the other end of the bottom of the tapping machine crossbeam; one end of the drill rod penetrates through the baffle, and the other end of the drill rod is connected with a spline shaft sleeve in the rock drill through a drill sleeve; a sliding hammer capable of freely sliding along the drill rod is arranged on the periphery of the drill rod between the limiting piece and the drill sleeve; hanging lugs are symmetrically arranged on the two sides of the periphery of the sliding weight, and pulling and holding pieces are arranged in the hanging lugs. Kinetic energy of the sliding weight is converted into impact force on the limiting piece through sliding motion of the sliding weight, then outward acting force is applied to the spline shaft sleeve, large acting force can be generated on the spline shaft sleeve when force applied by workers is small, the time for disassembling the spline shaft sleeve which cannot be taken out abnormally can be controlled within 10-20 minutes, efficiency is improved, and the labor intensity of workers is lowered. The operation time is saved, and the labor intensity and the safety risk of personnel are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary equipment of blast furnace opening machines, in particular to a quick disassembly tool for a spline shaft of a blast furnace opening machine and a rock drill. Background Art

[0002] Currently, 450m 3 Since the blast furnace uses a single taphole for tapping, the interval time is short (30-35 minutes). In the daily production process, when the spline sleeve of the open-mouth rock drill is damaged or the wind is small and affects production, a new spline sleeve needs to be replaced. When replacing the new spline sleeve, you first need to open the end cover of the rock drill to remove the old spline sleeve, then install the new spline sleeve, and then tighten the end cover. Under normal circumstances, this process takes 5-10 minutes. During the production process, sometimes when there are iron filings on the spline sleeve and the inner wall of the rock drill, the spline sleeve cannot be removed normally. It is necessary to use a sledgehammer to knock the spline sleeve to loosen it for easy disassembly. During the knocking process, because the force area of ​​the spline sleeve is small, it is easy to damage the thread of the end cover of the rock drill, so that the end cover cannot be installed, and the slip hammer may also cause personal injury. Reciprocating multiple times may not be effective. When the spline sleeve cannot be removed within a long time (0.5-2 hours), you can only replace a new rock drill. This process takes longer (2-3) hours. In addition, when removing the spline sleeve, the operator is close to the main hook of the blast furnace, and workers working in high-temperature areas for a long time are likely to suffer scalding accidents. The operation time is long and the labor intensity is high, which poses a safety hazard and affects the stable and smooth operation of the blast furnace. Utility Model Content

[0003] The utility model provides a tool for quickly disassembling the spline shaft of a blast furnace opening machine and a rock drill to solve the above technical problems and achieve the purpose of quickly disassembling the abnormal spline shaft in the blast furnace opening machine and the rock drill, which can be operated safely without affecting production.

[0004] To achieve its purpose, the utility model adopts the following technical solutions:

[0005] A blast furnace opening machine rock drill spline sleeve quick disassembly tool, the opening machine comprises an opening machine beam, a rock drill is arranged at one end of the bottom of the opening machine beam, and a baffle is arranged at the other end;

[0006] The disassembly tool comprises a drill rod, one end of which passes through a baffle, and the other end of which is connected to a spline sleeve in a rock drill through a drill sleeve; a limit piece is fixedly arranged in the middle of the drill rod, and a sliding hammer which can slide freely along the drill rod is arranged on the outer periphery of the drill rod between the limit piece and the drill sleeve; hanging ears are symmetrically arranged on both sides of the outer periphery of the sliding hammer, and a pulling member is arranged in the hanging ears.

[0007] As a further improvement of the technical solution of the utility model, the hanging ear is coplanar with the central axis of the drill pipe.

[0008] Furthermore, the holding member is a handle, a pull rope or a chain.

[0009] Furthermore, the limiting member is a cast iron cylinder.

[0010] Furthermore, the slide hammer is a cylindrical cast iron part.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the daily production process, when the spline sleeve of the open-end rock drill is damaged or the wind is low and affects production, a new spline sleeve needs to be replaced. When replacing the new spline sleeve, if it is found that the spline sleeve cannot be removed normally, the quick disassembly tool described in the utility model can be used to safely and quickly disassemble it, clean the iron filings and impurities inside the rock drill and replace the new spline sleeve. The use of this practical device can control the disassembly time of the spline sleeve that cannot be removed abnormally within 10-20 minutes, greatly shortening the time for replacing the spline sleeve, improving efficiency, saving working time, reducing the labor intensity and safety risks of personnel, and avoiding the occurrence of scalding accidents.

[0013] 2. The utility model has high reliability, simple structure, low use cost and strong reliability. The operation range is large and easy to operate. Through the sliding movement of the sliding hammer, the kinetic energy of the sliding hammer is converted into an impact force on the limiter, and then an outward force is applied to the spline sleeve. The staff can generate a large force on the spline sleeve with a small force, which reduces labor consumption and avoids the situation of blast furnace air blockage or even wind stop caused by long-term replacement of the spline sleeve, which ensures the safe, stable and smooth operation of the blast furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the blast furnace drill rod described in the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model of the blast furnace opening machine rock drill spline sleeve quick disassembly tool when in use;

[0016] Figure numerals: 1-drill rod; 2-limiting member; 3-sliding hammer; 4-hanging ear; 5-pull-holding member; 6-baffle; 7-opening machine beam; 8-spline shaft sleeve; 9-drill sleeve; 10-rock drill. DETAILED DESCRIPTION

[0017] The structure and working process of the utility model of a blast furnace opening machine rock drill spline shaft quick disassembly tool are further described below in conjunction with the accompanying drawings.

[0018] like Figure 1 As shown, a stopper 2 is welded in the middle of the drill rod 1, and it can be taken out by providing an outward pulling force during disassembly.

[0019] like Figure 2The embodiment of the utility model provides a quick disassembly tool for the spline shaft of a blast furnace opening machine and a rock drill, the opening machine includes an opening machine beam 7, a rock drill 10 is provided at one end of the bottom of the opening machine beam 7, and a baffle 6 is provided at the other end; the disassembly tool includes a drill rod 1, one end of the drill rod 1 passes through the baffle 6, and the other end is connected to the spline shaft sleeve 8 in the rock drill 10 through a drill sleeve 9; a limiter 2 is fixedly arranged in the middle of the drill rod 1, and a sliding hammer 3 that can slide freely along the drill rod 1 is arranged on the outer periphery of the drill rod 1 between the limiter 2 and the drill sleeve 9; hanging ears 4 that are coplanar with the central axis of the drill rod 1 are symmetrically arranged on both sides of the outer periphery of the sliding hammer 3, and a holding member 5 is arranged in the hanging ears 4.

[0020] The following reference Figure 2 The working principle of the utility model is described as follows:

[0021] When in use, one end of the drill rod 1 is passed through the baffle 6, and the slide hammer 3 is passed through the other end of the drill rod 1. The drill rod 1 is connected to the spline sleeve 8 through the drill sleeve 9. The pull-holding member 5 is tied to the hanging ear 4 of the slide hammer 3. The slide hammer 3 is driven to reciprocate through the pull-holding member 5, and the slide hammer 3 is moved close to the drill sleeve 9. The slide hammer 3 is quickly pulled in the direction close to the limiter 2 to accelerate the movement of the slide hammer 3. The slide hammer 3 hits the end face of the limiter 2, and the kinetic energy is converted into an impact force on the limiter 2. The impact force applies an outward pulling force to the spline sleeve 8 through the main rod 1 and the drill sleeve 9. Repeat several times until the spline sleeve 8 is separated from the inside of the rock drill 10, and then the spline sleeve 8 is pulled out through the drill rod 1.

[0022] As can be seen from the above, the spline sleeve quick disassembly tool for the blast furnace opening machine rock drill provided by the embodiment of the utility model is connected to the drill sleeve 9 through the drill rod 1, which is convenient for applying a pulling force to the spline sleeve 8 outward, and has a large operating range and is easy to operate. Through the sliding movement of the sliding hammer 3, the kinetic energy of the sliding hammer 3 is converted into an impact force on the limiter 2, and then a force is applied to the spline sleeve 8. The staff can generate a large force on the spline sleeve 8 with a small force, which reduces labor consumption, and has a simple structure, low use cost, and strong reliability. Among them, the weight of the sliding hammer 3, the distance between the drill sleeve 9 and the limiter 2, and the size of the force applied during pulling jointly determine the impact force when the sliding hammer 3 hits the limiter 2. The above parameters can be adjusted according to the use requirements during use to achieve the purpose of disassembling the spline sleeve 8. By setting the holding member 5, the staff holding the holding member 5 can more conveniently drive the sliding hammer 3 to slide on the drill rod 1. The holding member 5 may be of various types. For example, the holding member 5 may be a handle, or a pull rope or a chain.

[0023] Optionally, in the embodiment of the utility model, the stopper 2 is a cast iron cylinder, and the slide hammer 3 is a cylindrical cast iron part. The cylindrical end face of the slide hammer 3 has a large contact area with the stopper 2, which is convenient for applying tension, avoiding falling off during disassembly, and improving safety and reliability. The slide hammer 3 slides on the drill rod 1. In order to reduce friction resistance, water can be sprinkled on the drill rod 1 as a lubricant to reduce friction resistance, which is not only convenient for the staff to pull the pull member 5 to drive the slide hammer 3 to slide on the drill rod 1, but also can reduce the energy loss of the slide hammer 3 during the movement process, and the kinetic energy when moving to the stopper 2 is large, generating a large impact force.

[0024] Optionally, the gap between the drill rod 1 and the slide hammer 3 is small, the components are tightly connected, and a good limiting effect can be achieved on the slide hammer 3 to prevent the slide hammer 3 from deflecting.

[0025] During actual operation, a single impact of the sliding hammer 3 may not be able to disengage the spline sleeve 8 from the inside of the rock drill 10, or the stroke of the single impact limiter 2 is small, and the above steps need to be repeated multiple times to make the spline sleeve 8 completely disengage from the inside of the rock drill 10, and then be brought out of the rock drill 10 by the disassembly tool to complete the disassembly operation. This process does not damage the end cover thread of the rock drill 10.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick disassembly tool for a spline sleeve of a blast furnace opening machine and a rock drill, the opening machine comprising an opening machine beam (7), a rock drill (10) being provided at one end of the bottom of the opening machine beam (7) and a baffle (6) being provided at the other end, wherein: The disassembly tool comprises a drill rod (1), one end of the drill rod (1) passes through a baffle (6), and the other end is connected to a spline shaft sleeve (8) in a rock drill (10) through a drill sleeve (9); a limiter (2) is fixedly arranged in the middle of the drill rod (1), and a sliding hammer (3) which can slide freely along the drill rod (1) is arranged on the outer periphery of the drill rod (1) between the limiter (2) and the drill sleeve (9); hanging ears (4) are symmetrically arranged on both sides of the outer periphery of the sliding hammer (3), and a holding member (5) is arranged in the hanging ears (4).

2. A blast furnace opening machine rock drill spline sleeve quick disassembly tool as claimed in claim 1, characterized in that: The hanging ear (4) is coplanar with the central axis of the drill rod (1).

3. A quick disassembly tool for a spline sleeve of a blast furnace opening machine and a rock drill according to claim 1, characterized in that: The holding member (5) is a handle, a pull rope or a chain.

4. A blast furnace opening machine rock drill spline sleeve quick disassembly tool as described in any one of claims 1 to 3, characterized in that: The limiting member (2) is a cast iron cylinder.

5. A quick disassembly tool for a spline sleeve of a blast furnace opening machine and a rock drill according to any one of claims 1 to 3, characterized in that: The slide hammer (3) is a cylindrical cast iron part.

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