CN203559842U

CN203559842U - Novel internal single-action mechanism of drilling tool

Info

Publication number: CN203559842U
Application number: CN201320773813.5U
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 a novel internal single-action mechanism of a drilling tool. The novel internal single-action mechanism comprises a shaft, a first joint, a bearing seat, an upper bearing, a shaft sleeve, a lower bearing and a locking nut are sequentially connected on the peripheral face of the shaft from top to bottom, the shaft sleeve is assembled in the second joint, one end of the second joint is in threaded connection with the bearing seat while the other end of the same is in threaded connection with an inner pipe, the lower bearing and a shaft section, below the lower bearing, of the shaft are both positioned in the inner pipe, oil grooves are uniformly distributed on the inner wall of the shaft sleeve axially, a spring and a gasket are sleeved on a shaft section between the lower bearing and the locking nut, a radial oil hole is arranged on the inner pipe and communicated with an inner cavity of the inner pipe, a bearing is mounted at the bottom of the inner cavity, the locking nut is mounted in the bearing, a gap is formed between the gasket and the locking nut, and the spring is in a compressed state. By the novel internal single-action mechanism, single action of the drilling tool is realized while the shaft, the shaft sleeve and the bearings in the single-action mechanism can be effectively protected; the novel internal single-action mechanism is long in service life and stable in performance.

Description

The inner single action of a kind of novel drilling tool mechanism

Technical field

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

Background technology

The current 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 inner tube assembly is located by bullet clamp, shrinks by playing clamp simultaneously, realizes in inner tube and carrying, thereby realize, cores; 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 separated 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, oil groove is set directly in rotating shaft, has a strong impact on the intensity of axle, in special operation condition situation, and easy fracture when moment is subject to larger torsion; 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 the inner single action of a kind of novel drilling tool 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:

The inner single action of a kind of novel drilling tool mechanism, comprise axle, on the outer peripheral face of axle, be connected with the first joint from top to bottom in turn, bearing support, upper bearing (metal), axle sleeve, lower bearing and locking nut, 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, the inwall of axle sleeve is evenly equipped with oil groove vertically, 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, 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, there is gap, 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, by the setting of oil groove and inner tube upper oil hole is set at sleeve lining, make lubrication oil enter between axle sleeve and axle and upper and lower bearing by oilhole, oil groove, when axle rotates in axle sleeve, play lubrication, thus the problem of avoiding axle and axle sleeve to damage, protection axle and axle sleeve, avoided oil groove to be located on axle, the intensity adverse effect to axle 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, the inwall of axle sleeve 5 is evenly equipped with oil groove 10 vertically, 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 14, locking nut 7 is installed in bearing 14, between packing ring 12 and locking nut 7, there is gap, spring 11 is in compressive state, 11 pairs of lower bearings 6 of compressed spring play certain supporting role.

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.Because the inwall of axle sleeve 5 is evenly equipped with the setting of oil groove 10 and inner tube 9 upper oil holes 13 vertically, lubrication oil can enter between axle sleeve 5 and axle 1 and upper and lower bearing by oil groove 10, axle 1 is when the interior rotation of axle sleeve 5, play lubrication, thereby the problem of avoiding axle 1 and axle sleeve 5 to damage, has also avoided oil groove 10 to be located at the adverse effect of on axle 1, the intensity of axle 1 being brought simultaneously, 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 14, 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, 11 pairs of lower bearings 6 of compressed spring play certain supporting role, 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. the inner single action of a novel drilling tool 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) that lower bearing (6) and lower bearing (6) are following is all positioned at inner tube (9), it is characterized in that: the inwall of axle sleeve (5) is evenly equipped with oil groove (10) vertically, 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 (14), locking nut (7) is installed in bearing (14), between packing ring (12) and locking nut (7), there is gap, spring (11) is in compressive state.