CN2237107Y

CN2237107Y - Drill rod connection device

Info

Publication number: CN2237107Y
Application number: CN 95234721
Authority: CN
Inventors: 唐小波
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-29
Filing date: 1995-09-29
Publication date: 1996-10-09
Anticipated expiration: 2005-09-29

Abstract

The utility model relates to a drill rod connection device used for an engineering driller, comprising a cone, a conical sleeve, a locking device and a retreat stopping device. Drill rods can be connected and disassembled conveniently. Compared with various former drill rod connection devices, the utility model has the advantages of better stiffness, strength, sealing performance and rapid disassembly and assembly, labor intensity is relieved for workers, and the utility model has the value of popularization.

Description

A kind of drilling rod linkage

The utility model relates to engineering driller drilling rod connection device.

Engineering driller is in heavy caliber creeps into, and drilling rod is to work under the situation of low speed, high pulling torque, so drilling rod should possess enough stiffness, intensity and axiality.Because also requiring it to work under 40 kilograms of mud pressures does not leak, therefore, better seal must be arranged.Dismounting is frequent between the drilling rod, and it is quick and convenient so just to require drilling rod to connect dismounting, to increase work efficiency and to reduce labor intensity.At present, drilling rod connects and divides three classes substantially, and the first kind is threaded, and moment of torsion is by the screw thread transmission.Therefore, dynamic load is big more, and screw thread is tight more, makes that the screw thread after the locking is difficult for unclamping; Second class is that flange connects, and flange is connected with 6 bolts by 2 torsion pass pins, and having caused up and down, drilling rod is difficult for centering, dismounting; The 3rd class is that tooth embedding six sides connect, though solved the contradiction of above two class drilling rods, torsion pass and dismounting all touch the mark, and it is big to go up lower tooth inserted tooth side clearance, so stiffness, intensity are relatively poor, axiality and sealing are also bad, and use is restricted.Above-mentioned three class drilling rods are the existing drilling rods of existing market, and any class drilling rod all exists disadvantage, bored pile, and the stake that has behind the excavation is tilted and depression, so not only influences the intensity of foundation pile itself, and cause raw-material waste in perfusion.Therefore it is very necessary to design novel drilling rod syndeton.

The purpose of this utility model promptly is a kind of novel drilling rod linkage that designs according to the problem that prior art exists, and has drilling rod and connects, and easy accessibility (only revolve and turn 90 degrees) is connected firmly, and the moment of torsion transmission effect is good, characteristics such as good sealing effect.

How the purpose of this utility model realizes if being described in detail in detail with reference to the accompanying drawings.

Accompanying drawing 1 is a utility model structure division sectional drawing.

Accompanying drawing 2 is that utility model accompanying drawing 1 revolves the section of structure after turning 90 degrees.

Accompanying drawing 3 is the perspective view of utility model accompanying drawing 2.

1 is the drilling rod body among the figure, and 2 is conical sleeve, and 3 is cone, and 4 are retaining, and 5 is lock sleeve, and 6 is the power-assisted hole, and 7 is retaining pin, and 8 is spring, and 9 is the retaining hole, and 10 is the wing on lock sleeve band inclined-plane, and 11 are torsion pass side's plate, and 12 is handgrip, and 13 is small semicircle shape projection.

With reference to accompanying drawing, the utility model is by cone 3, lock sleeve 5 and conical sleeve 2 form, cone 3, and conical sleeve 2 is contained in respectively the two ends of drilling rod body 1, its The rear end is welded on the drilling rod body 1, and rotating lock sleeve 5 is enclosed within earlier cone 3 On, cone 3 is the cylinder with outer cone, its lower end is welded in drilling rod body 1 On, its front end is a taper cone barrel that tilts to the top, cone 3 middle parts cast out One block length side's plate is cone torsion pass side plate 11, torsion pass side's plate 11 and drilling rod body 1 is vertical, has retaining hole 9 (through hole) on it. Conical sleeve 2 is a band inner circle The cylinder of cone, its lower end is welded on the drilling rod body 1, and inboard mouthful is that opening is gradually big Taper cone barrel, its tapering is identical with cone 3 anterior taperings, these conical sleeve 2 upper ends Both sides are 13, two small semicircle shapes of two incomplete small semicircle shape projections projection Be a square groove between 13, the wide of its wide and torsion pass side's plate 11 equate, and be long and pass The appearance of the side's of turning round plate 11 etc., open each inboard, small semicircle shape projection 13 middle part Wear the groove of gradient on having, the groove top is the gear 4 of circular cone cuff gradient, lock Tight cover 5 upper ends are disks, are provided with power-assisted hole 6, and the centre is annulus, and annulus is straight Wide smaller than 2 two small semicircle square grooves of conical sleeve of footpath, annulus lower end have two right The extension that claims is namely locked the wing 10 on cuff inclined-plane, its inclined-plane gradient and circle The gear 4 of tapered sleeve band gradient is identical, and its diameter is than 2 two small semicircle middle parts of conical sleeve Distance between the gradient groove is smaller, and stopping device is enclosed within by retaining pin 7 Spring 8 on it and the handgrip of outer end 12 form, and retaining pin 7 can be at spring 8 Effect under snap in retaining hole 9.

The utility model has welded cone 3, circular cone to two earlier in use The drilling rod of cover 2 is to inserting, and cone 3 just in time inserts within the conical sleeve 2, cone Torsion pass side's plate 11 snaps in the rectangular groove between 2 two imperfect small semicircles of conical sleeve In, fall then lock sleeve 5 and rotation, lock the wing 10 on cuff inclined-plane this moment Change in the groove of conical sleeve 2 two imperfect small semicircles middle part with gradient, because The inclined-plane of the wing 10 on the inclined-plane of the gear 4 on circular cone cuff inclined-plane and locking cuff inclined-plane The back of the body is dead, and the effect of the gear 4 on circular cone cuff inclined-plane, by power-assisted hole 6 power-assisteds, After lock sleeve 5 was screwed, cone 3 and conical sleeve 2 namely tightly connected together, Moment of torsion is by being stuck in two torsion pass side's plates 11 that the rectangular groove of small semicircle is interior on the conical sleeve 2 Torsion pass, rotate handgrip 12 this moment, puts down retaining pin 7, once the lock sleeve derotation, Retaining pin can snap in a plurality of retainings hole 9 automatically under spring 8 effects, When drilling rod need to be dismantled, extract retaining pin 7 usefulness planks and insert power-assisted hole 9, pine Behind the open locking cover (only 90-degree rotation), can separate drilling rod.

The utility model is used for drilling rod and connects, and has obvious superiority.

1, positioning accuracy is that tapering is finalized the design, eliminated drilling rod be difficult in and the shortcoming in gap;

2, no gap tapering sealing, the machining accuracy of tapering meet true district and reach 70%～75% and make good seal, do not leak;

3, the lock sleeve on band inclined-plane is locked, and only revolves to turn 90 degrees, and operates very easy;

4, square plate torsion pass not only increases moment of torsion, also can not make lock sleeve locking overload;

5, the stopping device on the locking glove wing can not refund lock sleeve by the retaining hole on torsion pass side's plate, has eliminated the possibility that drilling rod comes off;

Compare with various connected modes in the past, have the advantages that stiffness, intensity, axiality, sealing have all obtained good solution, and easy accessibility, rapidly, alleviate labor strength greatly, be a kind of drilling rod linkage with promotional value.

Claims

1, a kind of drilling rod linkage is characterized in that the utility model by cone 3, and lock sleeve 5 and conical sleeve 2 and stopping device are formed, and cone 3, conical sleeve 2 are contained in the two ends of drilling rod body 1 respectively, and rotating lock sleeve 5 is enclosed within on the cone 3; Cone 3 is the cylinder of a band outer cone, and its lower end is welded on the drilling rod body 1, and front end is a circular cone tube that tilts to the top, and there is the vertical cone torsion pass side plate 11 of a drilling rod 1 at the cone middle part, has retaining hole 9 on torsion pass side's plate 11; Conical sleeve 2 is that a lower end is welded on the drilling rod body 1, the cylinder of band female cone, its tapering is identical with cone 3 anterior taperings, both sides, conical sleeve 2 upper end are two incomplete small semicircle shape projections 13, between two small semicircle shape projections 13 is a square groove, it is long, wide all identical with torsion pass side's plate 11, each inboard, small semicircle shape projection 13 middle part has the groove of wearing gradient, the groove top is the shelves 4 of conical sleeve band gradient, and lock sleeve 5 upper ends are disks, are provided with power-assisted hole 6, lock sleeve 5 middle parts are annulus, there is the extension of two symmetries the annulus lower end, i.e. the wing 10 on lock sleeve band inclined-plane, and its inclined-plane gradient is identical with the retaining 4 of conical sleeve band gradient; Stopping device is by stopping lock 7, cover thereon spring 8 and the handgrip 12 of outer end form.