CN203559840U

CN203559840U - Improved drilling tool single acting mechanism

Info

Publication number: CN203559840U
Application number: CN201320772733.8U
Authority: CN
Inventors: 苏刚; 姚风雷; 鲍新毅
Original assignee: Wuxi Geotec Geological Equipment Co Ltd
Current assignee: Wuxi Geotec Geological Equipment Co Ltd
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-04-23
Anticipated expiration: 2023-11-29

Abstract

The utility model relates to an improved drilling tool single acting mechanism, which comprises a shaft, wherein the peripheral surface of the shaft is orderly connected with a first joint, a bearing seat, an upper bearing, a shaft sleeve, a lower bearing and a locking nut from top to bottom, the shaft sleeve is assembled in a second joint, one end of the second joint is connected with the bearing seat through in a threaded mode, the other end of the second joint is connected with an inner pipe in the threaded mode, the lower bearing and a shaft segment of the shaft below the lower bearing are arranged in the inner pipe, an oil delivery pipeline is arranged in the shaft along the axial direction, the oil delivery pipeline stretches to the shaft sleeve to be matched with the shaft segment, the bottom end of the oil delivery pipeline is communicated with the outer circle of the shaft through an oil outlet hole, a spring and a gasket are sleeved on the shaft segment which is arranged between the lower bearing and the locking nut, a radial oil hole is arranged on the inner pipe, an oil hole is communicated with an inner cavity of the inner pipe, a bearing is arranged on the bottom portion of the inner cavity, the locking nut is arranged in the bearing, a gap is arranged between the gasket and the locking nut, and the spring is arranged in a compressed state. The improved drilling tool single acting mechanism achieves drilling tool single acting, and can effectively protect the shaft, the shaft sleeve and the bearing at the same time.

Description

One modified drilling tool single action mechanism

Technical field

The utility model relates to boring tool used for geological prospecting, is specifically related to the single action mechanism for separating of inner and outer tubes in single rotary double core barrel.

Background technology

The at present conventional main single tube of core drill or two-tube single action core drill, wherein, two-tube single action drilling tool has avoided drilling tool to rotate and the frictional vibration that the produces Mechanical Crushing to rock core, thereby its quality of coring is high.Single rotary double core barrel comprises outer pipe assembly and the inner tube assembly of socket, outer pipe assembly comprises assemblies such as playing block head, bullet card chamber, reamer, outer tube, drill bit, inner tube assembly comprises the assemblies such as salvaging mechanism, bullet card detent mechanism, hitch, single action mechanism, core catching mechanism, wherein, salvaging mechanism comprises and drags for spearhead, drags for the compositions such as lance seat, recovery tube, spring, for extracting rock core; Bullet card detent mechanism comprises bullet card holder, plays clamp, tension spring etc., and its effect is to be opened and made inner tube assembly location by bullet clamp, shrinks by bullet clamp simultaneously, realize in inner tube and carrying, thereby realization is cored; Hitch is comprised of seat ring and hanging ring, and its effect is to guarantee there is certain distance between clip spring seat and drill bit, and after guaranteeing that inner tube assembly puts in place, outer tube single action is flexible; Single action mechanism comprises the upper and lower and axle sleeve on axle, axle, and its effect is that to realize outer tube Fen Li with inner tube, make outer tube single action, and inner tube is motionless; Core catching mechanism comprises jump ring, clip spring seat and inner tube, and while carrying on inner pipe, by the relative motion of jump ring and clip spring seat, card breaks and holds rock core tightly.

Single action mechanism in existing single rotary double core barrel deposits following defect: on the one hand, bearing is longer from tank filler sleeve distance with the axle section of cooperation, and lubrication oil is difficult to arrive axle sleeve and the axle section of cooperation, and when axle rotates in axle sleeve, axle is easily because friction suffers damage; On the other hand, on axle, there is no buffer gear, when axle rotates, easily cause vibration, fragile axle and axle upper bearing (metal); Moreover, because axle is longer, only have pair of bearings to play a supporting role to axle, when running up, radial force is unbalanced, can accelerate the inefficacy of bearing, simultaneous buffering mechanism easily with axle generation frictional interference, cause single action mechanism to scrap.

Utility model content

The applicant improves for above-mentioned shortcoming of the prior art, and a kind of modified drilling tool single action mechanism is provided, and when it realizes drilling tool single action, can effectively protect to the axle in single action mechanism, axle sleeve and bearing long service life, stable performance.

The technical solution of the utility model is as follows:

One modified drilling tool single action mechanism, comprise axle, on the outer peripheral face of axle, be connected with the first joint, bearing support, upper bearing (metal), axle sleeve, lower bearing and locking nut from top to bottom in turn, axle sleeve is assemblied in the second joint, second joint one end is threaded with bearing support, the second joint other end is connected with Internal Pipe Thread, the shaft part of lower bearing and the axle below lower bearing is all positioned at inner tube, in axle vertically with oil transportation channel, oil transportation channel extends to axle sleeve and the axle section of cooperation, and the bottom of oil transportation channel is communicated with by oil outlet with the cylindrical of axle; On shaft part between lower bearing and locking nut, be arranged with spring and packing ring, inner tube is provided with radial direction oil hole, and oilhole is communicated with the inner chamber of inner tube, described intracavity bottom is provided with bearing, locking nut is installed in bearing, between packing ring and locking nut, has gap, and spring is in compressive state.

Technique effect of the present utility model:

The utility model is being realized on the basis of drilling tool single action function, oil transportation channel is set in axle, make lubrication oil enter axle sleeve and upper and lower bearing by oil outlet, when axle rotates in axle sleeve, play lubrication, thereby the problem of avoiding axle and axle sleeve to damage, protection axle and axle sleeve have been avoided, at axle cylindrical, the impact of oil groove on axle intensity is set simultaneously; On the other hand; at axle hypomere, be arranged with spring; when axle rotates; spring can play vibration reduction and cushioning effect, avoids because vibration causes damaging the problem of axle and upper and lower bearing protection axle and bearing; in the bottom of interior tube cavity, increasing a bearing supports the end of axle; avoided the unstable infringement that mechanism performance brought of axle when running up, extended its application life, and performance has been more stable.

Accompanying drawing explanation

Fig. 1 is sectional structure schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.

See Fig. 1, the utility model comprises axle 1, on the outer peripheral face of axle 1, be socketed with successively the first joint 2 from top to bottom, bearing support 3, upper bearing (metal) 4, axle sleeve 5, lower bearing 6 and locking nut 7, axle sleeve 5 is assemblied in the second joint 8, second joint 8 one end are threaded with bearing support 3, second joint 8 other ends are threaded with inner tube 9, the shaft part of lower bearing 6 and the lower bearing axle 1 below 6 is all positioned at inner tube 9, in axle 1 vertically with oil transportation channel 14, oil transportation channel 14 extends to axle sleeve 5 and axle 1 section of cooperation, the bottom of oil transportation channel 14 is communicated with by oil outlet 10 with the cylindrical of axle, on shaft part between lower bearing 6 and locking nut 7, be arranged with spring 11 and packing ring 12, inner tube 9 is provided with radial direction oil hole 13, oilhole 13 is communicated with the inner chamber of inner tube 9, described intracavity bottom is provided with bearing 15, locking nut 7 is installed in bearing 15, between packing ring 12 and locking nut 7, there is gap, spring 11 is in compressive state, compressed spring 11 plays certain supporting role to lower bearing 6.

After inner tube is transferred and is put in place, start to creep into operation, now, outer tube rotates coring with drilling rod, drill bit, simultaneously under the effect of upper bearing (metal) 4 and lower bearing 6, inner tube 9 is separated with drilling tool outer tube, drilling tool single action, i.e. axle 1 and outer tube rotation, and inner tube 9 is not rotated, the object that inner tube 9 is not rotated is in order to fill coring, and axle 1 rotation is in order not produce relative motion, reduces wear.Lubrication oil enters the section of cooperation and the upper and lower bearing of axle sleeve 5 and axle 1 from oil transportation channel 14 and oil outlet 10, axle 1, when the interior rotation of axle sleeve 5, plays lubrication, thus the problem of avoiding axle 1 and axle sleeve 5 to damage, on the other hand, at axle 1 hypomere, be arranged with spring 11, when axle 1 rotates, spring 11 can play vibration reduction and cushioning effect, avoid causing damaging axle 1 and upper because of vibration, the problem of lower bearing, in addition, locking nut 7 is installed in bearing 15, between packing ring 12 and locking nut 7, there is gap, make axle 1 not can with spring 11 and packing ring 12 interferences, not only make whole axle 1 stressed more balanced, the performance of Ye Shi mechanism is more stable, life-span is longer, spring 11 is in compressive state, compressed spring 11 plays certain supporting role to lower bearing 6, increased the reliability of whole mechanism.

More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection domain of the present utility model, can be done any type of modification.

Claims

1. a modified drilling tool single action mechanism, comprise axle (1), on the outer peripheral face of axle (1), be connected with the first joint (2) from top to bottom in turn, bearing support (3), upper bearing (metal) (4), axle sleeve (5), lower bearing (6) and locking nut (7), axle sleeve (5) is assemblied in the second joint (8), the second joint (8) one end is threaded with bearing support (3), the second joint (8) other end is threaded with inner tube (9), the shaft part of the axle (1) below lower bearing (6) and lower bearing (6) is all positioned at inner tube (9), it is characterized in that: in axle (1) vertically with oil transportation channel (14), oil transportation channel (14) extends to axle sleeve (5) and axle (1) section of cooperation, the bottom of oil transportation channel (14) is communicated with by oil outlet (10) with the cylindrical of axle, on shaft part between lower bearing (6) and locking nut (7), be arranged with spring (11) and packing ring (12), inner tube (9) is provided with radial direction oil hole (13), oilhole (13) is communicated with the inner chamber of inner tube (9), described intracavity bottom is provided with bearing (15), locking nut (7) is installed in bearing (15), between packing ring (12) and locking nut (7), have gap, spring (11) is in compressive state.