Drill rod connecting sleeve of blast furnace tapping machine

Abstract

The utility model discloses a blast furnace tapping machine drill rod connecting sleeve which comprises a left arc-shaped sleeve and a right arc-shaped sleeve, the left arc-shaped sleeve and the right arc-shaped sleeve are spliced into the connecting sleeve through a sealing assembly, a bit shank rod and a drill rod main body are arranged in the connecting sleeve, and the bit shank rod and the drill rod main body are connected through an inserting assembly. Fixing sleeves are arranged at the top end and the bottom end of the connecting sleeve through rotating assemblies, anti-rotating assemblies are arranged on the fixing sleeves, and the connecting sleeve and the bit shank rod as well as the connecting sleeve and the drill rod main body are connected through connecting assemblies. The connecting sleeve has the beneficial effects that the connecting sleeve can be conveniently connected and fixed, the stability during connection is ensured, the situations such as sliding can be avoided, the safety during use is ensured, meanwhile, the connecting sleeve can be matched with a connecting assembly, it can be ensured that when the connecting sleeve is connected with a drill rod, insertion positioning can be assisted, the connecting strength can be improved, and before the connecting sleeve is assembled and connected, the connecting sleeve is not prone to falling off. The bit shank rod and the drill rod body are connected in an inserted mode firstly, connection and fixation are assisted, and stability and firmness in the follow-up use process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of blast furnace opening machines, in particular to a drill rod connecting sleeve of a blast furnace opening machine. Background Art

[0002] The blast furnace tapping machine is an important machine for opening the iron mouth when the blast furnace is tapping iron. The tapping machine is essentially a long-pole electric drill that can rotate and move forward and backward and is suspended by a cantilever. After the operator inserts the drill bit into the iron mouth mud sleeve and aligns it with the center line of the iron mouth, the motor of the drilling mechanism is started. After the motor rotates, it is decelerated by the gear reducer and drives the drill rod to rotate, and the drill bit begins to drill into the iron mouth. At this time, the propulsion mechanism should be operated intermittently to make the drilling mechanism continuously move forward and the drill bit gradually drills into the iron mouth. After drilling to the red dot, the reverse switch of the propulsion mechanism is used to change the rotation direction of the motor so that the sliding trolley drives the drill bit of the drilling mechanism to exit the iron mouth. The drill rod connecting sleeve is an important component of the blast furnace tapping machine and can be connected to the drill rod.

[0003] However, the existing connecting sleeves have certain defects in actual use. Most of them are connected and fixed by simple threads, and their stability is relatively biased. In addition, they are prone to loosening due to rotation or vibration during use, which poses certain safety hazards. Utility Model Content

[0004] The utility model aims to provide a blast furnace opening machine drill rod connecting sleeve to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blast furnace opening machine drill pipe connecting sleeve comprises a left arc sleeve and a right arc sleeve, the left arc sleeve and the right arc sleeve are spliced ​​into a connecting sleeve through a sealing component, a drill tail rod and a drill pipe body are arranged in the connecting sleeve, the drill tail rod and the drill pipe body are connected by a plug-in component, a fixed sleeve is arranged at the top and bottom ends of the connecting sleeve through a rotating component, an anti-rotation component is arranged on the fixed sleeve, and the connecting sleeve and the drill tail rod, as well as the connecting sleeve and the drill pipe body are connected by connecting components.

[0007] Furthermore, in order to ensure the sealing performance during connection and improve the sealing effect during use, the sealing assembly includes a sealing strip symmetrically arranged on the side wall of the left arc-shaped sleeve, and a sealing groove symmetrically opened on the side wall of the right arc-shaped sleeve for interference fit with the sealing strip.

[0008] Furthermore, in order to perform pre-connection before connecting with the connecting sleeve, assist in positioning and fixing, and improve the strength and stability of the connection, the plug-in assembly includes a plug-in block fixedly arranged under the drill tail rod, and a plug-in groove compatible with the plug-in block is opened on the drill rod body.

[0009] Furthermore, in order to facilitate the connection and fixation of the connecting sleeve, the rotating component includes an internal thread provided on the inner side wall of the fixing sleeve, and the top and bottom ends of the connecting sleeve are provided with external threads that mesh with the internal thread.

[0010] Furthermore, in order to be able to insert and limit the fixing sleeve after connection and fixation to avoid rotation during use and ensure safety, the anti-rotation component includes anti-rotation holes opened on the fixing sleeve, the connecting sleeve, the drill pipe body and the drill tail rod, and anti-rotation rods are provided in the anti-rotation holes in the same horizontal direction.

[0011] Furthermore, in order to facilitate the connection and positioning of the connecting sleeve, avoid rotation, and ensure the strength of the connection, the connecting assembly includes a connecting hole opened on the side wall of the drill tail rod and the drill rod body, and the inner wall of the connecting sleeve is provided with a connecting column matching the connecting hole.

[0012] Furthermore, in order to improve the strength of the connection during use and avoid rotation, the anti-rotation hole and the connection hole are perpendicular to each other.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The rotating assembly cooperates with the anti-rotation assembly to facilitate the connection and fixation of the connecting sleeve, thereby ensuring stability during connection, avoiding sliding and the like, and ensuring safety during use. At the same time, the connecting assembly can assist in plugging and positioning when connected to the drill pipe, thereby improving the strength of the connection;

[0015] (2) The provided sealing assembly facilitates the sealing of the connecting sleeve during splicing and ensures the sealing effect. The provided plug-in assembly allows the drill tail rod and the drill rod body to be plugged in before the connecting sleeve is assembled and connected, thereby assisting in the connection and fixing, ensuring stability and firmness during subsequent use and improving the strength of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is one of the split structural schematic diagrams of a drill rod connecting sleeve of a blast furnace opening machine according to an embodiment of the utility model;

[0018] Figure 2 This is a second schematic diagram of a split structure of a drill rod connecting sleeve of a blast furnace opening machine according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a drill rod connecting sleeve of a blast furnace opening machine according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a left arc-shaped sleeve in a drill rod connecting sleeve of a blast furnace opening machine according to an embodiment of the utility model;

[0021] Figure 5 The utility model is a schematic structural diagram of a right arc-shaped sleeve in a drill rod connecting sleeve of a blast furnace opening machine according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1. Drill tail rod; 2. Drill rod body; 3. Fixed sleeve; 4. Left arc sleeve; 5. Right arc sleeve; 6. Plug-in groove; 7. Plug-in block; 8. Anti-rotation rod; 9. Anti-rotation hole; 10. Connecting hole; 11. Internal thread; 12. External thread; 13. Connecting column; 14. Sealing strip; 15. Sealing groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 According to an embodiment of the utility model, a blast furnace opening machine drill rod connecting sleeve includes a connecting sleeve for connecting the blast furnace opening machine drill rod, which is composed of a left arc sleeve 4 and a right arc sleeve 5 spliced ​​together, which is convenient for connection and disassembly operations. Two sets of sealing strips 14 of the sealing assembly are bonded to the side wall of the left arc sleeve 4, and a sealing groove 15 with an interference fit with the sealing strip 14 is opened on the corresponding side wall of the right arc sleeve 5, which can ensure the sealing effect during connection, and a drill tail rod 1 and a drill rod body 2 are arranged in the connecting sleeve, and the two are connected by a plug-in assembly, which can be conveniently connected and fixed. A plug-in block 7 of the plug-in assembly is welded under the drill tail rod 1, and a plug-in groove 6 for plugging with the plug-in block 7 is opened on the drill rod body 2, which can be used for preliminary connection positioning and convenient subsequent fixation.

[0026] See also Figure 1-Figure 5In order to position and fix after splicing, the top and bottom ends of the connecting sleeve are provided with external threads 12 of the rotating assembly, and the inner wall of the fixing sleeve 3 is provided with internal threads 11 that are convenient for meshing with the external threads 12, so that the top and bottom of the connecting sleeve can be connected and fastened. At the same time, in order to ensure that there will be no sliding during subsequent use, the fixing sleeve 3, the connecting sleeve, the drill pipe body 2 and the drill tail rod 1 are provided with anti-rotation holes 9 of the anti-rotation assembly, and the anti-rotation rods 8 are inserted into the anti-rotation holes 9 in the same horizontal direction. In order to ensure the effect of plug-in, a rubber sleeve can be provided on the outside of the anti-rotation rod 8, and in order to ensure the connection effect between the connecting sleeve and the drill tail rod 1 and the drill rod body 2, a connecting hole 10 of the connecting assembly is opened on the side walls of the drill tail rod 1 and the drill rod body 2, wherein the connecting hole 10 and the anti-rotation hole 9 are perpendicular to each other, and the inner wall of the connecting sleeve (that is, the inner wall of the left arc sleeve 4 and the right arc sleeve 5) is equidistantly welded with connecting columns 13 that are plugged into the connecting hole 10, which can ensure that the connecting sleeve will not rotate after connection, thereby ensuring the connection effect.

[0027] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0028] When assembling and connecting, firstly, the two sets of fixing sleeves 3 are respectively sleeved on the outside of the drill tail rod 1 and the drill rod body 2, and then the plug-in block 7 is plugged into the plug-in groove 6 to preliminarily connect and fix the drill tail rod 1 and the drill rod body 2, and then the left arc sleeve 4 and the right arc sleeve 5 are connected, and the connecting column 13 is inserted into the connecting hole 10, so that the drill tail rod 1 and the drill rod body 2 can be positioned and fixed, and at the same time, the sealing strip 14 is connected and sealed with the sealing groove 15 to ensure the sealing effect of the connection. At this time, the internal thread 11 and the external thread 12 are meshed, and the fixing sleeve 3 can be used. By tightening the connecting sleeve, the left arc sleeve 4 and the right arc sleeve 5 can be tightened to ensure the firmness of the connection. In order to improve the firmness and avoid subsequent rotation, the anti-rotation rod 8 is inserted into the anti-rotation hole 9 to fix the fixed sleeve 3 and the connecting sleeve to prevent rotation, thereby ensuring stability and safety during use. When disassembly is required, the anti-rotation rod 8 can be pushed out first, and then the fixed sleeve 3 is rotated in the opposite direction to be unscrewed from the connecting sleeve, so that the left arc sleeve 4 and the right arc sleeve 5 can be easily removed, which facilitates disassembly operations and is convenient for maintenance or replacement operations.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blast furnace opening machine drill pipe connecting sleeve, comprising a left arc sleeve (4) and a right arc sleeve (5), characterized in that: The left arc-shaped sleeve (4) and the right arc-shaped sleeve (5) are spliced ​​into a connecting sleeve through a sealing component. A drill tail rod (1) and a drill rod body (2) are arranged in the connecting sleeve. The drill tail rod (1) and the drill rod body (2) are connected through a plug-in component. A fixed sleeve (3) is arranged at the top and bottom ends of the connecting sleeve through a rotating component. An anti-rotation component is arranged on the fixed sleeve (3). The connecting sleeve and the drill tail rod (1), and the connecting sleeve and the drill rod body (2) are also connected through a connecting component.

2. A blast furnace opening machine drill pipe connecting sleeve according to claim 1, characterized in that: The sealing assembly comprises a sealing strip (14) symmetrically arranged on the side wall of the left arc-shaped sleeve (4), and a sealing groove (15) which is symmetrically opened on the side wall of the right arc-shaped sleeve (5) and is interference-fitted with the sealing strip (14).

3. A blast furnace opening machine drill pipe connecting sleeve according to claim 2, characterized in that: The plug-in assembly comprises a plug-in block (7) fixedly arranged under the drill tail rod (1), and a plug-in groove (6) adapted to the plug-in block (7) is provided on the drill rod body (2).

4. A blast furnace opening machine drill pipe connecting sleeve according to claim 3, characterized in that: The rotating assembly comprises an internal thread (11) formed on the inner wall of the fixing sleeve (3), and the top and bottom ends of the connecting sleeve are both provided with external threads (12) meshing with the internal thread (11).

5. The blast furnace opening machine drill pipe connecting sleeve according to claim 4, characterized in that: The anti-rotation assembly comprises anti-rotation holes (9) formed on a fixing sleeve (3), a connecting sleeve, a drill rod body (2) and the drill tail rod (1), and anti-rotation rods (8) are provided in the anti-rotation holes (9) in the same horizontal direction.

6. A blast furnace opening machine drill pipe connecting sleeve according to claim 5, characterized in that: The connection assembly comprises a connection hole (10) formed on the side walls of a drill tail rod (1) and a drill rod body (2), and a connection column (13) matching the connection hole (10) is provided on the inner wall of the connection sleeve.

7. A blast furnace opening machine drill pipe connecting sleeve according to claim 6, characterized in that: The anti-rotation hole (9) and the connecting hole (10) are perpendicular to each other.

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