CN2179455Y

CN2179455Y - Plug-in drill rod joint

Info

Publication number: CN2179455Y
Application number: CN 93232415
Authority: CN
Inventors: 郭春生; 张广玉; 奚崇生; 王德全; 李涛
Original assignee: SHANDONG GEOLOGY PROSPECTING MACHINERY PLANT
Current assignee: SHANDONG GEOLOGY PROSPECTING MACHINERY PLANT
Priority date: 1993-12-06
Filing date: 1993-12-06
Publication date: 1994-10-12
Anticipated expiration: 2003-12-06

Abstract

The utility model relates to a plug-in drill rod joint, belonging to the connecting piece of drilling tools. The plug-in drill rod joint changes a flange-typed plug-in connecting piece used by an original drilling rod into a matching type whose interior is round and exterior is quadrate and a matching type whose exterior is round and interior is quadrate. A plug-in inner joint and a plug-in outer joint have the advantages of simple production process, convenience and rapidness during the connection and lengthening of a drill rod, work efficiency enhancing, service life extending, and low cost.

Description

Plug-in drill rod joint

The utility model belongs to the boring tool connector.

Because the needs of length must be made a call to one section and connect one section, the connection between drilling rod in the past is mainly with flange or gear shaping with drilling rod in probing, the former is welded on two flanges respectively on two drilling rods to connect with bolt again, and it connects not firm, and bolt easily falls and be loosening, working costs influences rate of penetration, and the latter is connected with gland by inside and outside gear shaping, because of each between cog discontinuity, not wear-resisting, sealing is poor, and application life is short, the processing technology complexity, the manufacturing cost height.

The purpose of this utility model provides a kind of plug connector of polygonal body formula, make processing, easy to use, quick, the life-span is long, cost is low.

Insert the spigot ［ 4 ］ that coincide with the socket inner surface in the pillars of a house shape socket ［ 1 ］ of a kind of cross section such as step, spigot external surface step place groove is embedded with oil sealing ［ 3 ］, the interior socket anastomosis gland ［ 2 ］ that to be the cross section be fastened and connected like the pressure cooker cover formula of F type, the lid with in, socket fastens the circular arc plate ［ 5 ］ that gap location is inserted with a pair of symmetry, be rotary with the plug-in type tool joint that alignment pin ［ 6 ］ is formed in the screw on vertical slot on the plate and the relevant position, gland upper end, the outer end and the drilling rod junction that it is characterized in that this joint are circle, inner anastomosis mutually is a joint, and socket is round outside but spuare inside, spigot is interior round foreign side.The side of this joint is exactly a polygonal body, and its limit number is 3 to 16.

The utility model has the advantages that type of attachment is simple, without bolt or gear shaping, good seal, process simple, easy to use fast, high efficiency, low, stressed big, the long service life of cost.

Accompanying drawing 1 is the central cross-section structural representation of plug-in type tool joint, Fig. 2 is a hexagon joint A-A sectional drawing, Fig. 3 is a pentagon joint A-A sectional drawing, Fig. 4 is a dodecagon joint A-A sectional drawing, wherein 1-socket, 2-gland, the 3-oil sealing, the 4-spigot, 5-plate, 6-alignment pin.

Enforcement of the present utility model and using method are the blankings at conventional joint, forging stock, processing, die forging, side's of milling (by required limit number), after the steps such as heat treatment, interior socket is made the coupling shape of interior circle foreign side and round outside but spuare inside shape respectively, outer stacks place is circular, and the difference solid welding is at the two ends of two drilling rods, oil sealing is embedded in the groove of spigot, elder generation is going here and there the gland picking-up that has plate and alignment pin on spigot place drilling rod during use, again spigot is inserted in the socket, put down gland, back (how much turning an angle according to the limit number) rotates to an angle.Utilize the mode of pressure cooker cover to fasten gland and inside and outside joint, fallen plate, by alignment pin carry out spacing with loosen, make gland and inside and outside joint unlikely loosening, the connection of finishing drilling rod extends, and is used to build, the rig of bridge, drilling project.

Claims

1, insert the spigot [4] that coincide with the socket inner surface in the pillars of a house shape socket [1] of a kind of cross section such as step, spigot external surface step place groove is embedded with oil sealing [3], the interior socket anastomosis gland [2] that to be the cross section be fastened and connected like the pressure cooker cover formula of F type, the lid with in, socket fastens the circular arc plate [5] that gap location is inserted with a pair of symmetry, be rotary with the plug-in type tool joint that alignment pin [6] is formed in the screw on vertical slot on the plate and the relevant position, gland upper end, the outer end and the drilling rod junction that it is characterized in that this joint are circle, inner anastomosis mutually is a joint, and socket is round outside but spuare inside, spigot is interior round foreign side.

2, plug-in type tool joint according to claim 1, the limit number that it is characterized in that square body is 3 to 16.