CN207920549U - A kind of drilling tool with wear-resistance protective sleeve - Google Patents

Abstract

The utility model belongs to drill pipe art, propose a kind of drilling tool with wear-resistance protective sleeve, including the body of rod, the cross section of the body of rod is square, the through-hole of perforation is provided in the body of rod, the both ends of the body of rod are respectively arranged with left connector and right connector, the circular hole of right connector insertion is provided on left connector, internal thread is provided in circular hole, the external screw thread with screw-internal thread fit is provided on right connector, it is provided with first annular groove on the inner wall of circular hole bottom, the body of rod is provided with several coaxial second annular grooves on one end of right connector, it is both provided with O-ring seal in second annular groove and first annular groove, the trapezoidal third annular groove in section is provided on the free end of right connector, it solves existing drilling rod junctions and the technical issues of sealing loosely usually occurs.

Description

A kind of drilling tool with wear-resistance protective sleeve

Technical field

The utility model belongs to drill pipe art, is related to a kind of drilling tool with wear-resistance protective sleeve.

Background technology

Oil drill rocker is indispensable important tool in oil drilling operation, since oil drilling depth is generally relatively deep, It needs more drilling rod connections just to can guarantee normal drilling as drilling depth increases, therefore generally requires the left connector of adjacent drill pipes Increase with the not connection breaking of right connector, the problem of sealing loosely usually occurs in junction, result in a large amount of leakages of oil.

Utility model content

The utility model proposes a kind of drilling tools with wear-resistance protective sleeve, solve above-mentioned technical problem.

What the technical solution of the utility model was realized in：

A kind of drilling tool with wear-resistance protective sleeve, including：

The cross section of the body of rod, the body of rod is square, and the through-hole of perforation, the both ends of the body of rod are provided in the body of rod It is respectively arranged with left connector and right connector, the circular hole that the right connector is inserted into is provided on the left connector, is set in the circular hole It is equipped with internal thread, the external screw thread with the screw-internal thread fit is provided on the right connector, is set on the inner wall of the circular hole bottom It is equipped with first annular groove, it is recessed that the body of rod is provided with several second coaxial annulars on one end of the right connector O-ring seal is both provided in slot, the second annular groove and the first annular groove, on the free end of the right connector It is provided with the trapezoidal third annular groove in section.

As further technical solution, it is both provided with rectangular recess on the body of rod side wall, is set in the rectangular recess It is equipped with a sheet rubber, the bottom of the sheet rubber and the rectangular recess surrounds a cavity, and the surrounding of the sheet rubber extends It is located in the body of rod, in the rectangular recess above the sheet rubber and is provided with a piston, the piston and the rubber The cavity of a sealing is surrounded between film, and the wear-resisting pressing plate of arch is provided with above the piston.

As further technical solution, the contact position of the sheet rubber and the body of rod is filled with sealant layer.

As further technical solution, the fastening bolt for compressing the sheet rubber is provided on the body of rod.

As further technical solution, the section of piston is in I-shaped.

As further technical solution, C-shaped grooves are provided on the side wall of the body of rod.

As further technical solution, the sheet rubber is butyl rubber.

Compared with prior art, it utility model works principle and has the beneficial effect that：

1, in the utility model, oil is delivered up by through-hole when exploiting oil, and the right connector of two neighboring drilling rod is stretched Enter in the circular hole of left connector and tightened by screw thread, the internal thread in circular hole and non-through circular hole always, the bottom of circular hole It is provided with first annular groove, right connector screws in behind its bottom, and the O-ring seal in first annular groove surrounds right connector end On the external screw thread in portion, enhance sealing effect, and also have the effect of centainly anti-tripping, is located at the body of rod in the surrounding of right connector On be provided with several second annular grooves, and it is coaxial arrangement, and O-ring seal is also equipped in second annular groove, is risen The effect that sealing is surrounded to layering, is in addition provided with the trapezoidal third annular groove in section on the free end of right connector, even if It can enter in third annular groove after having a small amount of Oil spills, during drilling rod torque transmits in third annular groove Oil can be back flowed back into partly in through-hole and is delivered up, and the oil in third annular groove can also play it is certain into The effect of one step sealing, the technical issues of preventing oil from further largely leaking, therefore largely revealed which solves oil.

2, in the utility model, local intricate the phenomenon that being often seriously worn that the body of rod stretches into, influencing it makes With the service life, in the present embodiment, the wear-resisting pressing plate of arch is rubbed and is collided with the external world first, when squeezing more serious, can have an high regard for work Plug moves inwards, and then extrusion chamber, and cavity is the cavity of sealing, is squeezed rear pressure and increases, and then makes the rubber of its bottom Film finds deformation, towards cavity sunken inside, and then reduces the degree of abrasion and the extruding of the wear-resisting pressing plate of arch, works as extruding force When disappearance, sheet rubber sets back, and then the wear-resisting pressing plate of arch also sets back, and extends the service life of stem；It is close The setting of adhesive layer ensures the air-tightness in cavity；The setting of fastening bolt compresses sheet rubber, same when preventing it from deforming When be subjected to displacement；The section of piston is in I-shaped, enhancing airtight effect；The setting of C-shaped grooves facilitates the clamping of clamping device；Fourth The air-tightness of base rubber and the effect of elastic recoverable deformation are more preferable.

Description of the drawings

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

FIG. 1 is a schematic structural view of the utility model；

In figure：The 1- bodies of rod, 2- through-holes, the left connectors of 3-, 4- right connectors, 5- circular holes, 6- internal threads, 7- external screw threads, 8- first Annular groove, 9-O type sealing rings, 10- second annular grooves, 11- third annular grooves, 12- rectangular recess, 13- sheet rubbers, 14- pistons, 15- cavitys, the wear-resisting pressing plate of 16- arches, 17- sealant layers, 18- fastening bolts, 19- cavitys, 20-C type grooves.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

As shown in Figure 1, the utility model proposes a kind of drilling tools with wear-resistance protective sleeve, including：

The cross section of the body of rod 1, the body of rod 1 is square, and the through-hole 2 of perforation is provided in the body of rod 1, and the both ends of the body of rod 1 are set respectively It is equipped with left connector 3 and right connector 4, the circular hole 5 of the insertion of right connector 4 is provided on left connector 3, internal thread 6 is provided in circular hole 5, It is provided with the external screw thread 7 coordinated with internal thread 6 on right connector 4, first annular groove 8, bar are provided on the inner wall of 5 bottom of circular hole Body 1 is provided with several coaxial second annular grooves 10, second annular groove 10 and the first ring on one end of right connector 4 It is both provided with O-ring seal 9 in connected in star 8, the trapezoidal third annular groove in section is provided on the free end of right connector 4 11。

In the present embodiment, oil is delivered up by through-hole 2 when exploiting oil, and the right connector 4 of two neighboring drilling rod stretches into Tightened in the circular hole 5 of left connector 3 and by screw thread, the internal thread 6 in circular hole 5 and non-through circular hole 5 always, circular hole 5 Bottom is provided with first annular groove 8, and right connector 4 screws in behind its bottom, and the O-ring seal 9 in first annular groove 8 is surrounded On the external screw thread 7 of 4 end of right connector, enhance sealing effect, and also have the effect of centainly anti-tripping, in right connector 4 Surrounding, which is located on the body of rod 1, is provided with several second annular grooves 10, and it is coaxial arrangement, is also set in second annular groove 10 It is equipped with O-ring seal 9, the effect that sealing is surrounded in layering is played, it is trapezoidal to be in addition provided with section on the free end of right connector 4 Third annular groove 11 transmits even if can enter in third annular groove 11 after having a small amount of Oil spills in drilling rod torque The oil in third annular groove 11 can partly be back flowed back into through-hole 2 and is delivered up in the process, and third annular is recessed Oil in slot 11 can also play the role of it is certain further seal, prevent oil from further largely leaking, therefore the device Solves the technical issues of oil is largely revealed.

Further, it is both provided with rectangular recess 12 on 1 side wall of the body of rod, a sheet rubber 13, rubber is provided in rectangular recess 12 Film 13 and the bottom of rectangular recess 12 surround a cavity 19, and the surrounding of sheet rubber 13 all extends in the body of rod 1, rectangular recess 12 The interior top positioned at sheet rubber 13 is provided with a piston 14, and the cavity 15 of a sealing is surrounded between piston 14 and sheet rubber 13, living The top of plug 14 is provided with the wear-resisting pressing plate of arch 16.

Local intricate the phenomenon that being often seriously worn that the body of rod 1 stretches into, influence its service life, the present embodiment In, the wear-resisting pressing plate of arch 16 is rubbed and is collided with the external world first, when squeezing more serious, can be had an high regard for piston 14 and be moved inwards, And then extrusion chamber 15, cavity 15 are the cavity of sealing, are squeezed rear pressure and increase, and then the sheet rubber 13 of its bottom is made to send out Existing deformation towards 19 sunken inside of cavity, and then reduces the degree of the abrasion and extruding of the wear-resisting pressing plate of arch 16, when extruding force disappears When mistake, sheet rubber 13 sets back, and then the wear-resisting pressing plate of arch 16 also sets back, and extends the service life of stem.

Further, the contact position of sheet rubber 13 and the body of rod 1 is filled with sealant layer 17.

In the present embodiment, the setting of sealant layer 17 ensures the air-tightness in cavity 15.

Further, the fastening bolt 18 for compressing sheet rubber 13 is provided on the body of rod 1.

In the present embodiment, the setting of fastening bolt 18 compresses sheet rubber 13, and when preventing it from deforming while position occurs It moves.

Further, the section of piston 14 is in I-shaped.

In the present embodiment, the section of piston 14 is in I-shaped, enhancing airtight effect.

Further, C-shaped grooves 20 are provided on the side wall of the body of rod 1.

In the present embodiment, the setting of C-shaped grooves 20 facilitates the clamping of clamping device.

Further, sheet rubber 13 is butyl rubber.

In the present embodiment, the effect of the air-tightness of butyl rubber and elastic recoverable deformation is more preferable.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection domain within.

Claims (7)

1. a kind of drilling tool with wear-resistance protective sleeve, which is characterized in that including the body of rod (1), the cross section of the body of rod (1) is in side Shape, the interior through-hole (2) for being provided with perforation of the body of rod (1), the both ends of the body of rod (1) are respectively arranged with left connector (3) and the right side Connector (4) is provided with the circular hole (5) of the right connector (4) insertion on the left connector (3), be provided in the circular hole (5) in Screw thread (6) is provided with the external screw thread (7) coordinated with the internal thread (6) on the right connector (4), circular hole (5) bottom First annular groove (8) is provided on inner wall, the body of rod (1) is provided with several on one end of the right connector (4) It is both provided in coaxial second annular groove (10), the second annular groove (10) and the first annular groove (8) O-shaped Sealing ring (9) is provided with the trapezoidal third annular groove (11) in section on the free end of the right connector (4).

2. a kind of drilling tool with wear-resistance protective sleeve according to claim 1, which is characterized in that on the body of rod (1) side wall It is both provided with rectangular recess (12), a sheet rubber (13), the sheet rubber (13) and institute are provided in the rectangular recess (12) The bottom for stating rectangular recess (12) surrounds a cavity (19), and the surrounding of the sheet rubber (13) all extends in the body of rod (1), It is located above the sheet rubber (13) in the rectangular recess (12) and is provided with a piston (14), the piston (14) and described The cavity (15) of a sealing is surrounded between sheet rubber (13), and the wear-resisting pressing plate of arch (16) is provided with above the piston (14).

3. a kind of drilling tool with wear-resistance protective sleeve according to claim 2, which is characterized in that the sheet rubber (13) and institute The contact position for stating the body of rod (1) is filled with sealant layer (17).

4. a kind of drilling tool with wear-resistance protective sleeve according to claim 2, which is characterized in that be arranged on the body of rod (1) There is the fastening bolt (18) for compressing the sheet rubber (13).

5. a kind of drilling tool with wear-resistance protective sleeve according to claim 3, which is characterized in that the section of the piston (14) In I-shaped.

6. a kind of drilling tool with wear-resistance protective sleeve according to claim 1, which is characterized in that the side wall of the body of rod (1) On be provided with C-shaped grooves (20).

7. a kind of drilling tool with wear-resistance protective sleeve according to claim 2, which is characterized in that the sheet rubber (13) is fourth Base rubber.