CN203570238U

CN203570238U - New type single action mechanism of drill

Info

Publication number: CN203570238U
Application number: CN201320773233.6U
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: 2014-04-30
Anticipated expiration: 2023-11-29

Abstract

The utility model relates to a new type single action mechanism of a drill. The new type single action mechanism comprises a shaft, wherein a first joint, a bearing block, an upper bearing, a shaft sleeve, a lower bearing and a locking nut are connected onto the external circumference of the shaft in sequence from top to bottom; the shaft sleeve is assembled in a second joint; one end of the second joint is connected with the bearing block through threads; the other end of the second joint is connected with an internal pipe through threads; the lower bearing, and the section, below the lower bearing, of the shaft are both located in the internal pipe; a vertical oil groove is formed in the section, between the bearing block and the lower bearing, of the shaft; a spring and a gasket are sheathed on the section, between the lower bearing and the locking nut, of the shaft; a radial oil hole is formed in the internal pipe; the oil hole is communicated with the internal cavity of the internal pipe; the bottom of the internal cavity is provided with a bearing; the locking nut is installed in the bearing; clearance exists between the gasket and the locking nut; the spring is located in a compression state. According to the new type single action mechanism, when the single action of the drill is realized, the shaft, the shaft sleeve and the bearings in the single action mechanism can be effectively protected; therefore, the service life is long, and the performance is stable.

Description

Novel drilling tool single acting engine structure

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, there is no oil groove on axle, 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 novel drilling tool single acting engine structure 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:

Novel drilling tool single acting engine structure, 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, on the shaft part of the axle between bearing support and lower bearing, have vertical oil groove, 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 vertical oil groove and inner tube upper oil hole on the shaft part between bearing support and lower bearing, make lubrication oil enter axle sleeve and upper and lower bearing by oilhole, oil groove, when axle rotates in axle sleeve, play lubrication, thereby the problem of avoiding axle and axle sleeve to damage, protection axle and axle sleeve; 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, on the shaft part of the axle 1 between bearing support 3 and lower bearing 6, have vertical oil groove 10, 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.Setting due to vertical oil groove 10 and inner tube 9 upper oil holes 13 on the shaft part of the axle 1 between bearing support 3 and lower bearing 6, lubrication oil can enter axle sleeve 5 and upper and lower bearing by oil groove 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 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. novel drilling tool single acting engine structure, 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: on the shaft part of the axle (1) between bearing support (3) and lower bearing (6), have vertical oil groove (10), 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.