CN208294449U - A kind of double outer diameter tool joints - Google Patents

Abstract

The utility model discloses a kind of double outer diameter tool joints, including pin end and female connector, and pin end is located at female connector side, No.1 outer diameter section and No.1 connector are fixedly connected with inside the pin end, and No.1 connector is located at No.1 outer diameter section side, No.1 connector exterior surface is provided with female adapter.The utility model passes through the No.1 connector internal female connector of setting and inside No. two connectors male connections, its screw threads for fastening is connected, the elevator hoisting power of drilling rod can be effectively promoted using double outside diameter structures of setting, pass through the double-layer seal rings and O-ring of setting, sealing effect that can effectively at reinforced joint, pass through the wear-resistant alloy layer by setting of setting, it can be with shoulder in effective protection, the surface of male connection and female adapter is not corroded, the case where preventing flank from causing extrusion abrasion and plastic deformation, so as to reach the case where preventing drilling rod from loosening.

Description

A kind of double outer diameter tool joints

Technical field

The utility model relates to a kind of tool joint, in particular to a kind of double outer diameter tool joints.

Background technique

Drilling rod is a kind of steel pipe of the tail portion with a chain for binding criminals line, is set for connecting drilling machine landscape apparatus and boring mill positioned at drilling well bottom end Standby or bottom outlet device.The purposes of drilling rod is drilling mud to be transported to drill bit, and bottom outlet is improved, reduced or rotated together with drill bit Device.Drilling rod allows for bearing huge interior external pressure, distortion, bending and vibration.In the exploitation and extractive process of oil gas, bore Bar can be used for multiple times.Drilling rod is divided into kelly bar, drilling rod and heavy weight drill pipe three classes.

How the performance of the important component of drilling rod when general tool joint, tool joint directly affects making for drilling rod With effect, tool joint connection in open market is not secured enough, and long-time service be easy to cause junction corrosion there is a situation where loose, Load-bearing and bearing capacity needs further enhance.For this purpose, it is proposed that a kind of double outer diameter tool joints.

Utility model content

The main purpose of the utility model is to provide a kind of double outer diameter tool joints, inside the No.1 connector of setting Female adapter and inside No. two connectors male connections, its screw threads for fastening is connected, double outside diameter structures of setting are utilized The elevator hoisting power that drilling rod can effectively be promoted can be effectively at reinforced joint by the double-layer seal rings and O-ring of setting Sealing effect can be with shoulder, male connection and interior spiral shell in effective protection by the wear-resistant alloy layer by setting of setting The case where surface of line connector is not corroded, and prevents flank from causing extrusion abrasion and plastic deformation, prevents so as to reach The case where drilling rod loosens, while No.1 connector and No. two connector knots can effectively be reinforced by the beryllium copper floor and buffer spring of setting The hardness of the tool joint of structure has the function of certain bumper and absorbing shock, is conducive to the overall performance and bearing capacity that promote drilling rod, prevents Only drilling rod generates the case where damage, rupture, can be effectively slow to playing at tool joint by the protective layer and wear rib of setting Punching effect, while also can protect the air moisture corrosion of No.1 connector and No. two connector joints, it can effectively solve background The problems in technology.

To achieve the above object, the technical solution that the utility model is taken are as follows:

A kind of double outer diameter tool joints, including pin end and female connector, and pin end is located at female connector side, the public access Head is internal to be fixedly connected with No.1 outer diameter section and No.1 connector, and No.1 connector is located at No.1 outer diameter section side, and the No.1 connects Head outer surface is provided with female adapter, and two extra diameter sections and No. two connectors, and two are fixedly connected with inside the female connector Number connector is located at two extra diameter section sides, and No. two connector interior surfaces are provided with male connection, the female adapter Male connection junction is provided with double-layer seal rings and O-ring, and double-layer seal rings are located at O-ring side, the outer spiral shell Line connector and female adapter surface are provided with wear-resistant alloy layer.

Further, beryllium copper floor and buffer spring, and beryllium copper layer are provided with inside the No.1 connector and No. two connectors Positioned at buffer spring side.

Further, matcoveredn, the protective layer is arranged in the No.1 connector and No. two connector junction outer surfaces Outside is fixedly connected with wear rib.

Further, the diameter of the No.1 outer diameter section is greater than the diameter of No.1 connector, the diameter of the two extras diameter section Greater than the diameter of No. two connectors.

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

1, this kind of a kind of double outer diameter tool joints, when in use, No.1 connector internal female connector and No. two connectors Internal male connection, its screw threads for fastening is connected, can effectively be mentioned using the No.1 outer diameter section and two extra diameter sections of setting The elevator ability and efficiency for rising drilling rod can sealing effects effectively at reinforced joint by the double-layer seal rings and O-ring of setting The case where fruit more improves the sealing performance of connector, prevents the liquid inside drilling rod from revealing effectively promotes the entirety of drilling rod Leakproofness.

It 2, can be with shoulder, male connection and interior spiral shell in effective protection by the wear-resistant alloy layer by setting of setting The case where surface of line connector is not corroded, and prevents flank from causing extrusion abrasion and plastic deformation, prevents so as to reach The case where drilling rod loosens, while by the protective layer and wear rib of setting, it can be effectively to playing protection at drilling rod external lug Effect, while it being also possible to prevent the corrosion of the air either moisture of No.1 connector and No. two connector joints, to entire connector Improve Global Macros effect in place.

3, the drilling rod of No.1 connector and No. two joint structures can effectively be reinforced by the beryllium copper floor and buffer spring of setting The hardness of connector has the function of certain bumper and absorbing shock, is conducive to the overall performance and bearing capacity that promote drilling rod, prevents drilling rod from producing The case where raw damage, rupture, prolong the service life, it is simple and convenient, it is readily disassembled, is suitble to be widely popularized and use.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of double outer diameter tool joints of the utility model.

Fig. 2 is a kind of antifriction alloy schematic diagram of a layer structure of double outer diameter tool joints of the utility model.

Fig. 3 is a kind of protective layer structure schematic diagram of double outer diameter tool joints of the utility model.

Fig. 4 is a kind of No.1 connector schematic diagram of internal structure of double outer diameter tool joints of the utility model.

In figure: 1, pin end；2, female connector；3, No.1 outer diameter section；4, No.1 connector；5, two extra diameter section；6, No. two connect Head；7, protective layer；8, double-layer seal rings；9, O-ring；10, wear rib；11, female adapter；12, male connection；13, resistance to Merge layer gold；14, beryllium copper layer；15, buffer spring.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

As shown in Figs 1-4, a kind of double outer diameter tool joints, including pin end 1 and female connector 2, and pin end 1 connects positioned at mother First 2 side is fixedly connected with No.1 outer diameter section 3 and No.1 connector 4 inside the pin end 1, and No.1 connector 4 is located at an extra 3 side of diameter section, 4 outer surface of No.1 connector are provided with female adapter 11, are fixedly connected with two inside the female connector 2 Extra diameter section 5 and No. two connectors 6, and No. two connectors 6 are located at two extra diameter sections, 5 side, the setting of 6 interior surface of No. two connectors There is male connection 12, the female adapter 11 and 12 junction of male connection are provided with double-layer seal rings 8 and O-ring 9, And double-layer seal rings 8 are located at 9 side of O-ring, the male connection 12 and 11 surface of female adapter are provided with resistance to adjustment Layer gold 13.

Wherein, beryllium copper floor 14 and buffer spring 15, and beryllium copper are provided with inside the No.1 connector 4 and No. two connectors 6 Layer 14 is located at 15 side of buffer spring.

Wherein, matcoveredn 7, the protective layer 7 is arranged in the No.1 connector 4 and No. two 6 junction outer surfaces of connector Outside is fixedly connected with wear rib 10.

Wherein, the diameter of the No.1 outer diameter section 3 is greater than the diameter of No.1 connector 4, and the diameter of the two extras diameter section 5 is big In the diameter of No. two connectors 6.

It should be noted that the utility model is a kind of double outer diameter tool joints, when in use, using in No.1 connector 4 Male connection 12 inside portion's female adapter 11 and No. two connectors 6, its screw threads for fastening is connected, process is being fastenedly connected In, it can reach the sealing effect at reinforced joint by double-layer seal rings 8 and O-ring 9, improve the sealing performance of connector, utilize No.1 outer diameter section 3 and two extra diameter sections 5 can effectively promote the elevator hoisting power and efficiency of drilling rod, in male connection 12 and female adapter 11 surface setting wear-resistant alloy layer 13 prevent flank cause extrusion abrasion and plastic deformation the case where, The hardness of the tool joint of No.1 connector 4 and No. two 6 structures of connector can effectively be reinforced using beryllium copper floor 14 and buffer spring 15, Have the function of certain bumper and absorbing shock, is conducive to the overall performance and bearing capacity that promote drilling rod, utilizes protective layer 7 and wear rib 10, the air of No.1 connector 4 and No. two 6 joints of connector can be can protect effectively to buffer function is played at tool joint Moisture corrosion improves Global Macros effect to entire joint.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (4)

1. a kind of double outer diameter tool joints, including pin end (1) and female connector (2), and pin end (1) is located at female connector (2) one Side, it is characterised in that: be fixedly connected with No.1 outer diameter section (3) and No.1 connector (4) inside the pin end (1), and No.1 connects Head (4) is located at No.1 outer diameter section (3) side, and No.1 connector (4) outer surface is provided with female adapter (11), the mother Two extra diameter sections (5) and No. two connectors (6) are fixedly connected with inside connector (2), and No. two connectors (6) are located at two extra diameter sections (5) side, No. two connectors (6) interior surface are provided with male connection (12), the female adapter (11) and outer spiral shell Line connector (12) junction is provided with double-layer seal rings (8) and O-ring (9), and double-layer seal rings (8) are located at O-ring (9) one Side, the male connection (12) and female adapter (11) surface are provided with wear-resistant alloy layer (13).

2. a kind of double outer diameter tool joints according to claim 1, it is characterised in that: the No.1 connector (4) and No. two It is provided with beryllium copper layer (14) and buffer spring (15) inside connector (6), and beryllium copper layer (14) is located at buffer spring (15) side.

3. a kind of double outer diameter tool joints according to claim 1, it is characterised in that: the No.1 connector (4) and No. two Matcoveredn (7) are arranged in connector (6) junction outer surface, are fixedly connected with wear rib (10) outside the protective layer (7).

4. a kind of double outer diameter tool joints according to claim 1, it is characterised in that: the No.1 outer diameter section (3) it is straight Diameter is greater than the diameter of No.1 connector (4), and the diameter of the two extras diameter section (5) is greater than the diameter of No. two connectors (6).