Magnetic type plug of drilling machine turntable

Abstract

The utility model relates to a magnetic type plug of a drilling machine turntable, and belongs to the technical field of drilling machine turntable corollary equipment. The magnetic type plug of the drilling machine rotary table comprises a plug body, a magnetic ring and a cotter pin. The plug body is of an integrated structure and comprises a rotary base and a positioning shaft. The rotary base is of a stepped shaft-shaped structure; a positioning shaft is arranged at the upper end center of the rotary base; a plurality of magnetic rings are sleeved on the positioning shaft; and the upper end of the positioning shaft above the magnetic ring is provided with a cotter pin through a through hole. The magnetic type plug of the drilling machine rotary table is compact in structure and ingenious in design, solves the problems that a magnet of an existing drilling machine rotary table plug is prone to disengagement and the adsorption effect is relatively poor, and is particularly suitable for the use requirement of the drilling machine rotary table.

Description

Technical Field

[0001] The utility model relates to a magnetic suction plugging of a drilling rig turntable, belonging to the technical field of drilling rig turntable supporting equipment. Background Art

[0002] The turntable is an important part of the drilling rig. It is a device that achieves deceleration through a pair of bevel gear pairs, so that the turntable can obtain a certain range of speed and torque output, and drives the drilling tool to perform drilling operations. Since the linear speed of the turntable bevel gear pair is relatively high, the load is large, and the tooth shape is deep, some iron filings will be generated when the small gear and the large gear mesh at high speed, and adhere to the lubricating oil. In order to reduce the impact of iron filings on the drilling rig turntable, a magnetic plug will be selected and installed at the bottom of the drilling rig turntable. The existing magnetic plug, such as the hexagonal oil pan drain plug disclosed in the utility model patent with authorization announcement number CN213478424U, has the function of absorbing iron filings, but it has the following problems:

[0003] First, the magnet in the existing oil drain plug is installed by an interference fit, and after installation, it is very easy to be separated under the action of the lubricating oil.

[0004] Second, most of the magnets in the existing oil drain plug are located inside the oil drain plug, and there is a problem that the adsorption effect is relatively poor due to the relatively low adsorption area.

[0005] Third: After the existing drain plug is adsorbed, when the drain plug is unscrewed, the lubricating oil is discharged from the bottom of the turntable, which will impact the oil plug and bring the iron chips back into the lubricating oil. When the lubricating oil is used again, there is still a problem of easy damage to the equipment.

[0006] Therefore, it is necessary to develop a new magnetic suction plug to solve the above problems of existing plugs. Summary of the invention

[0007] The utility model aims to provide a magnetic suction plugging device for a drilling rig turntable with a compact structure and ingenious design to solve the problems of easy separation of magnets and relatively poor adsorption effect in the existing drilling rig turntable plugging.

[0008] The technical solution of the utility model is:

[0009] A magnetic plug for a drilling rig turntable, comprising a plug body, a magnetic ring and a cotter pin; the characteristics are: the plug body is an integrated structure, comprising a swivel base and a positioning shaft; the swivel base is a stepped shaft structure; a positioning shaft is arranged at the center of the upper end of the swivel base; a plurality of magnetic rings are mounted on the positioning shaft; a cotter pin is arranged at the upper end of the positioning shaft above the magnetic ring through a through hole.

[0010] The outer surface of the swivel base is provided with external threads.

[0011] The bottom of the swivel base is provided with a clamping countersunk hole.

[0012] The bottom of the swivel base is provided with a clamping protrusion.

[0013] The bottom thread of the clamping protrusion is equipped with a sealing cock; a sliding rod is slidably mounted on the plug body at the upper end of the sealing cock through a vertical sliding hole; and a sealing cover is fixedly mounted after the upper end of the sliding rod extends to the top of the plug body.

[0014] A sealing ring groove is arranged on the upper surface of the rotary base; the sealing ring groove corresponds to the sealing cover.

[0015] The lower end of the slide rod is fixedly connected or threadedly connected to the sealing cock.

[0016] The advantages of the utility model are:

[0017] The magnetic suction plug of the drill rig turntable has a compact structure and ingenious design. It adopts a technical solution of assembling the magnetic ring on the plug body with a cotter pin. When working, the magnetic ring can be exposed as a whole inside the drill rig turntable, and can be isolated from the outside world by a sealing cover, thereby solving the problem of easy detachment of the magnet and relatively poor adsorption effect of the existing drill rig turntable plug. It is particularly suitable for the use needs of the drill rig turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the plug body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the magnetic ring of the utility model;

[0021] Figure 4 This is a schematic diagram of the improved structure of the utility model;

[0022] Figure 5 for Figure 4 A schematic cross-sectional structure diagram of ;

[0023] Figure 6 for Figure 4 A structural diagram of the recycling state;

[0024] Figure 7 for Figure 5 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0026] In the figure: 1. plug body; 2. swivel base; 3. positioning shaft; 4. magnetic ring; 5. cotter pin; 6. external thread; 7. snap-in countersunk hole; 8. snap-in protrusion; 9. sealing plug; 10. sliding rod; 11. sealing cover; 12. sealing ring groove. DETAILED DESCRIPTION

[0027] The magnetic plug of the drilling rig rotary table includes a plug body 1, a magnetic ring 4 and a split pin 5 (see the attached manual). Figure 1 ).

[0028] The plug body 1 is an integrated structure, which includes a swivel base 2 and a positioning shaft 3; the swivel base 2 is a stepped shaft structure; the center of the upper end of the swivel base 2 is provided with a positioning shaft 3; a plurality of magnetic rings 4 are mounted on the positioning shaft 3; the upper end of the positioning shaft 3 above the magnetic ring 4 is provided with a split pin 5 through a through hole (see the attached manual Figure 1 ).

[0029] The outer surface of the swivel base 2 is provided with an external thread 6. The bottom of the swivel base 2 is provided with a clamping countersunk hole 7 (see the attached manual Figure 2 ). The purpose of setting the plug body 1 and the magnetic ring 4 in this way is: first, the plug body 1 can limit the magnetic ring 4 on the positioning shaft 3 through the split pin 5, thereby avoiding the problem of separation between the magnetic ring 4 and the plug body 1. Second, the outer surface of the magnetic ring 4 can fully contact the lubricating oil in the drill rig rotary table during operation, thereby solving the problem that most of the magnets in the existing drain plug are located inside the drain plug and the adsorption area is relatively low, resulting in relatively poor adsorption effect.

[0030] When the magnetic plugging of the drilling rig turntable is working, the rotary base 2 can be assembled on the bottom of the drilling rig turntable through the external thread 6. In this way, when working, the iron cuttings attached to the lubricating oil will be adsorbed on the outer surface of the magnetic ring 4 under the action of magnetic force.

[0031] As an improvement of the present invention, a clamping protrusion 8 is provided at the bottom of the slewing base 2. A sealing cock 9 is threadedly installed at the bottom of the clamping protrusion 8; a slide rod 10 is slidably installed on the plug body 1 at the upper end of the sealing cock 9 through a vertical slide hole; the lower end of the slide rod 10 is fixedly connected or threadedly connected to the sealing cock 9 (see the attached manual). Figure 5 The upper end of the slide rod 10 extends to the top of the plug body 1 and is fixedly mounted with a sealing cover 11. A sealing ring groove 12 is provided on the upper surface of the rotary base 2; the sealing ring groove 12 corresponds to the sealing cover 11 (see the attached manual). Figure 5 and 8 ).

[0032] The purpose of setting the sealing cover 11 in this way is that when working, the sealing cover 11 is located above the magnetic ring 4 under the action of the sliding rod 10 and the sealing cock 9 (see the appendix of the specification). Figure 5), so that when the magnetic ring 4 attracts the iron cuttings, the sealing cover 11 will not interfere with the work of the magnetic ring 4. When the drilling rig turntable is overhauled, loosen the sealing cock 9, pull the slide bar 10 to drive the sealing cover 11 to move down and engage with the sealing ring groove 12 (see the attached manual Figure 6 ). In this way, the magnetic ring 4 can be isolated from the outside under the action of the sealing cover 11. Then loosen the plug body 1. At this time, the lubricating oil inside the drilling rig turntable will flow out through the bottom oil port. In this process, since the sealing cover 11 isolates the magnetic ring 4, the iron cuttings adsorbed on the magnetic ring 4 will not flow into the lubricating oil again, so the problem of iron cuttings being brought back into the lubricating oil and damaging the equipment when the existing drain plug drains the oil can be solved.

[0033] After the above work is completed, the magnetic plug with the sealing cover 11 can be put into use again after being cleaned again.

[0034] The magnetic suction plug of the drill rig turntable has a compact structure and ingenious design. It adopts a technical solution of assembling the magnetic ring 4 on the plug body 1 with a cotter pin 5. When working, the magnetic ring 4 can be exposed as a whole inside the drill rig turntable, and can be isolated from the outside world by a sealing cover 11, thereby solving the problem of easy detachment of the magnet and relatively poor adsorption effect of the existing drill rig turntable plug, and is particularly suitable for the use needs of the drill rig turntable.

Claims

1. A magnetic plug for a drilling rig rotary table, comprising a plug body (1), a magnetic ring (4) and a split pin (5); characterized in that: The plug body (1) is an integrated structure, comprising a swivel base (2) and a positioning shaft (3); the swivel base (2) is a stepped shaft structure; a positioning shaft (3) is arranged at the center of the upper end of the swivel base (2); a plurality of magnetic rings (4) are sleeved on the positioning shaft (3); and a split pin (5) is arranged at the upper end of the positioning shaft (3) above the magnetic ring (4) through a through hole.

2. The magnetic plugging device for a drilling rig rotary table according to claim 1 is characterized in that: The outer surface of the slewing base (2) is provided with an external thread (6).

3. The magnetic plugging device for a drilling rig rotary table according to claim 1 is characterized in that: A clamping countersunk hole (7) is provided at the bottom of the swivel base (2).

4. The magnetic plugging device for a drilling rig rotary table according to claim 1 is characterized in that: A clamping protrusion (8) is provided at the bottom of the swivel base (2).

5. The magnetic plugging device for a drilling rig rotary table according to claim 4 is characterized in that: The bottom thread of the clamping protrusion (8) is provided with a sealing cock (9); a slide rod (10) is slidably provided on the plug body (1) at the upper end of the sealing cock (9) through a vertical slide hole; the upper end of the slide rod (10) extends to the upper part of the plug body (1) and is fixedly provided with a sealing cover (11).

6. The magnetic plugging device for a drilling rig rotary table according to claim 5, characterized in that: The upper surface of the slewing base (2) is provided with a sealing ring groove (12); the sealing ring groove (12) corresponds to the sealing cover (11).

7. The magnetic plugging device for a drilling rig rotary table according to claim 5, characterized in that: The lower end of the sliding rod (10) is fixedly connected or threadedly connected to the sealing cock (9).

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