CN100358675C

CN100358675C - Quick safety connecting mechanism

Info

Publication number: CN100358675C
Application number: CNB200410083954XA
Authority: CN
Inventors: 陈月辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-14
Filing date: 2004-10-14
Publication date: 2008-01-02
Anticipated expiration: 2024-10-14
Also published as: CN1586776A

Abstract

The present invention relates to a quick safety connecting mechanism for a drilling tool, which is characterized in that the quick safety connecting mechanism for a drilling tool is composed of a male joint (1), a female joint body (2), a floating steel ball (3), a floating, locking and sliding sleeve (4), a reset pressure spring (5), etc., wherein the middle section of the male joint is a conical body (10), both ends of the conical body are provided with big and small column righting sections (11), (9) and an O-shaped sealing ring (6) is arranged on the small column righting section (9). The conical body (10) is provided with three forward spinning spiral clamping slots (8) without ingress and egress gaps near the big end, and three floating steel ball holes (25) which are perpendicular to an inner conical surface are uniformly distributed on the female joint body (2) corresponding to a climbing start position A-A interface of the spiral clamping slots (8). A conical surface angle beta of the inner conical surface (12) on the floating, locking and sliding sleeve (4) is a self-locking angle. When connected, the locking sliding sleeve is pulled, the male joint is inserted into the female joint to release the locking sliding sleeve and at the same time, the male joint is reversely rotated. Under the push of the pressure spring, the floating steel ball is forced by the inner conical surface of the locking sliding sleeve to be squeezed in the spiral clamping slots to complete connection. The floating steel ball which is operated in a forward spinning method scrolls and climbs in the spiral clamping slots. The larger the torque is, the larger the adherence force between the male and the female conical bodies is and the larger the capability for transferring the torque is. Force can be inversely transferred, and the present invention has better driving rigidity. Unless operation is removed, the opportunity of falling off can not exist, when the locking sliding sleeve is.

Description

Quick safety connecting mechanism

Affiliated technical field

The present invention relates to the quick safety connecting mechanism that a kind of drilling machine is used, be specially adapted to connection drill bits such as drilling machine, water brill, bore the position that tube and lengthening extension bar etc. often connect, unload.

Background technology

Present drilling machine, connect drill bit, bore tube, the conventional method of lengthening extension bar etc. is that the application standard screw thread is equipped with the short conical surface of big gradient and sets upright centering and be characteristics, this method of attachment advantage is simple in structure, good rigidly, and shortcoming is that upward inefficiency is wasted time and energy in button, shackle very much.For exploring advanced practical drilling machine quick-connect machanism, a lot of patent application schemes are arranged, for example resigned number of patent application 01203777.X water bores uses quick-connect machanism, it develops from hydraulic quick coupling and comes, but it only depends on return spring to try hard to recommend that the limited component of generation draws by pin and box sub before the lowest point that steel ball is inserted into ball hole, the power deficiency of being adjacent to has determined that its transmission rigidity is poor, and it transmits moment of torsion by steel ball fully, because steel ball can produce huge climbing expansive force in the ball hole during transmission, force locking sliding sleeve distortion and lost efficacy, facts have proved does not have practical value.I another have been authorized to the no gap of utility model 200320102987.5 long awls quick-connect machanism, it has been used near the long cone from the non-self-locking of the locking angle and has cooperated the stationary balls Chinese toon that dashes forward to climb at helicla flute, increase the conical surface and be adjacent to power, reach cone and steel ball and transmit moment of torsion jointly, rigidity after realize connecting and dismantling easily, but it is because the prominent stake of giving prominence on the long awl female joint inner conical surface of stationary balls will enter spiral buckle groove on the die nipple body, the have to initiating terminal of the spiral buckle groove on the die nipple body is provided with steel ball turnover approaching channel, automatically the weak point that comes off when therefore there is reversing in it, its another weak point is that the prominent stake of fixing rigidity is set on the female coupling tap body, all require very highly for the uniform property positional precision of prominent stake and spiral buckle groove, it is evenly stressed in fact to be difficult to reach each steel ball Chinese toon that dashes forward.

Summary of the invention

For the poor efficiency that overcomes screwed connection in the present drilling machine bindiny mechanism and the deficiency of security in the connectivity scenario fast, the invention provides a kind of quick safety connecting mechanism, this bindiny mechanism can not only finish seamless connectivity fast, again can safe slip-off preventing, good transmission rigidity is arranged, can comprise on the exigent hand-held brill at all drilling machines and using.

The technical solution adopted for the present invention to solve the technical problems is that quick safety connecting mechanism is made up of male joint, female joint body, the steel ball that floats, unsteady locking sliding sleeve and reseting pressuring spring five parts, the stage casing of its pin and box sub is a cone, the cone two ends are big small column sections of setting upright, hold uniform three positive rotation direction spiral card button grooves that do not pass in and out gap at the die nipple body by big.In three uniform in male joint spiral buckle grooves, be in the cross section that central point constituted of three unsteady steel balls of initial climbing the lowest point, as the interface.And with the female joint cone oral area of this interface correspondence, if the power transmission steel ball is put in the hole, unsteady steel ball cave of uniform three vertical inner conical surfaces in the hole, cave, the inner conical surface of the unsteady locking in outside sliding sleeve is under the effect of reseting pressuring spring, steel ball can be pushed away wedging spiral buckle groove, finish the connection task.The technical program essence is that patent 200320102987.5 is grown on the safety of boring no gap quick-connect machanism, connected the weak point that exists on the mechanism, makes major tuneup.The no gap of the long awl of concrete analysis quick-connect machanism, the steel ball that its spiral buckle groove starting point is established draw into groove be cause oppositely come off unsafe basic, secondly the dead prominent stake of stationary balls of iron chains, it during climbing a kind of sliding friction relation, transmission efficiency is low, its position accuracy demand is too harsh again, influences manufacturing cost.Our application enhancements hydraulic quick coupling locking sliding sleeve principle, the long wimble structure pin and box sub stage casings of boring no gap quick-connect machanism with the reform patent No. 200320102987.5 length are cones, the cone two ends are the big small column section of setting upright, set upright Duan Shangshe " O " shape sealing ring at the male joint small column, and the steel ball stake turnover approaching channel of cancellation spiral buckle groove original position, spiral buckle groove then seals, and reform length is bored the unsteady steel ball that the prominent Chinese toon of stationary balls in the female joint flushes for withdrawn to the inner conical surface that floats, at the external unsteady locking sliding sleeve of establishing band from locking angle inner conical surface of female joint, and mix corresponding reseting pressuring spring, so axial pulling locking sliding sleeve, unsteady steel ball can be withdrawn in the storage tank that locks on the sliding sleeve outside the freedom, when the male and female cone in conjunction with after the locking sliding sleeve that discharge to float, under the effect of stage clip, locking sliding sleeve inner conical surface presses the steel ball that floats to enter the lowest point of spiral buckle groove initiating terminal, the steel ball and the locking sliding sleeve that floats can be brought into play the position compensation effect and the less dependence accuracy of manufacture automatically owing to float, the steel ball that floats is as can be seen used at this place, not only each steel ball can be detained the groove the lowest point in dark Dacca, help improving the power transmission ability, also because the hole, unsteady steel ball cave of establishing on the female joint body, played the bearing bracket stand effect of ball bearing this moment, during the dextrorotation power transmission steel ball in spiral buckle groove as freewheel clutch, be a kind of rolling climbing mechanism, transmission efficiency improves and has also reduced wearing and tearing, when high pulling torque is worked, pin and box sub is in the self-locking state that is bordering on non-self-locking, clamping force is bigger, in a single day manually draw motionless locking sliding sleeve during dismounting, the locking sliding sleeve but axial blows is floated, steel ball climbing power is removed, can easily dismantle, this mechanism is safe and reliable, does not have the sorrow that comes off.The power transmission of can also reversing is satisfied when handling bit freezing, needs the needs with the positive and negative twisting of spanner.

Beneficial effect of the present invention has been to remedy the weak point that the no gap of the patent No. 200320102987.5 long awls quick-connect machanism exists, a kind of free-hand grafting occurs and get final product work, good transmission rigidity is arranged, can positive and negatively rotate, safety does not have the chance that comes off, and its transmission is stressed evenly, favourable raising moment of torsion fan-out capability is again easily with dismounting, can satisfy the configuration needs of all kinds of drilling machines, applying of it will significantly improve the operating efficiency that has drilling machine now, and fine economic results in society are arranged.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a quick safety connecting mechanism overall structure schematic diagram of the present invention, and this figure also is a Figure of abstract;

Fig. 2 is the male joint structural representation of quick safety connecting mechanism;

Fig. 3 is the structural representation of quick safety connecting mechanism female joint body;

Fig. 4 is the unsteady locking shift sleeve structure schematic diagram of quick safety connecting mechanism;

Fig. 5 uses the lengthening extension bar schematic diagram that the quick safety connecting mechanism technology is made;

The specific embodiment

Quick safety connecting mechanism overall structure schematic diagram as shown in Figure 1, to comprise that linking up overall picture in the double dot dash line frame sees, it is to use the engineering the drilling facility example of joint fast and safely that the quick safety connecting mechanism technology is made, and it can make the drilling machine of existing traditional screwed connection realize fast, safety is unloaded.(1) is male joint among the figure, (2) be the female joint body, (3) be the steel ball that floats, (4) be the locking sliding sleeve that floats, (5) are reseting pressuring springs, and (6) are " O " shape sealing rings, (8) be the spiral buckle groove that does not have the sealing of steel ball discrepancy approaching channel, generally can establish uniform 2～3, preferably establish 3, stressed better.In three spiral buckle grooves (8) uniform in male joint, be in three cross sections that unsteady steel ball central point is constituted of position, initial climbing the lowest point, as the A-A interface.The cone oral area of the female joint body (2) of A-A interface correspondence, if the hole, unsteady steel ball cave (25) of uniform three vertical inner conical surfaces, (7) be jump ring, (14) be the operation anti-slip tank, (15) be die nipple body central through hole, (16) be the female joint central through hole, (18) be the pin thread of signal in order to link to each other with traditional instruments such as brill tube, (17) be the flat side of spanner, (19) the traditional box that is connected that is signal in order to join with the drilling machine output shaft, (20) be flat side in traditional male joint, (12) be the unsteady inner conical surface that locks on the sliding sleeve, (13) be the storage tank of depositing unsteady steel ball (3), from this figure pin and box sub connection status as can be seen, the locking sliding sleeve (4) that floats is subjected to the promotion of stage clip (5) and moves right, make locking sliding sleeve inner conical surface (12) press unsteady steel ball (3) to embed the lowest point of spiral buckle groove (8), the uniform degree of hole, steel ball cave (25) and spiral buckle groove (8) has a small amount of error, can get automatically compensation and all can be stressed as the stool of three legs, and still can reach the stressed interlocking pattern of good homogeneous, and when positive rotation is made in male joint, unsteady steel ball is then done the climbing of rolling in spiral buckle groove, torsion is healed, and applying power heals big between grand duke's female coupling tap body, transferable moment of torsion is also bigger, total transmission moment of torsion is to be born jointly by stop by conical surface friction power and steel ball, under the same torque conditions, floating comparatively speaking, it is stressed little more many than locking sliding sleeve among the patent application 01203777.X to lock the suffered expansive force of sliding sleeve, and when male joint is reversed, then moment of torsion is born by steel ball fully, but because steel ball is all the time in buckle groove the lowest point, it is good with quick-connect machanism that the power transmission situation is also still bored than patent application 01203777.X water.This spline structure is not independently removed operational motion and can not be come off, and has reached safe connection purpose.Among the figure as can be seen, hand catches the locking sliding sleeve (4) that floats to moving to left, compression press spring (5), inner conical surface on the locking sliding sleeve breaks away from the steel ball (3) that floats, make steel ball storage tank (13) reach the steel ball position of floating, certainly will remove into storage tank (13) by steel ball, male joint (1) is then extracted from female joint smoothly, if excessive because of the moment of torsion of implementing, self-locking occurs, hand-power draws motionless locking sliding sleeve during dismounting, then can also be easy to unfreezing, manually dismantle again with the axial jarring left locking sliding sleeve of suitable hard tool, tighten the use of to spud in owing to need not prestressing force when patching, totally use very convenient quick.

The structural representation of the male joint of quick safety connecting mechanism (1) as shown in Figure 2, this figure is together with seeing in the double dot dash line frame, use the male joint of the joint fast and safely that this quick safety connecting mechanism technology makes exactly, the main points that present technique is different from 200320102987.5 patents are not to be single long awl grafting body, there is (11) and (9) big small column section of setting upright at the two ends of grafting die nipple body, joint is connected to enter the centering state in advance, and uniform spiral buckle groove (8) is that sealing does not have steel ball turnover approaching channel, moreover steel ball is rolling work in the buckle groove, and spiral buckle groove has not required auto-lock function.The degree of depth of buckle groove generally should steel ball (3) diameter that floats 1/3 to 3/8 between, (21) are to prevent the fluffing of trough rim orifice and the dead slot established, (22) are the round section joint ring grooves.The double dot dash line circle is the unsteady steel ball (3) that signal is in the initial climbing of spiral buckle groove the lowest point, and (34) are signal buckle groove spiral oblique lines.Spiral buckle groove is subjected to big extrusion stress as the bearing groove, and male joint should or be oozed the charcoal steel with bearing steel and made, and cone hardness should be about HRC55～60 degree.

The structural representation of quick safety connecting mechanism female joint body as shown in Figure 3, this figure is together with seeing in the double dot dash line frame, it is a female joint body of using the joint fast and safely that this quick safety connecting mechanism technology makes, the main points that present technique is different from 200320102987.5 patents be changed it uniform three the stationary balls prominent Chinese toons that from inside to outside embed inner conical surface of female coupling tap body oral area for as shown in the figure, the double dot dash line circle is the unsteady steel ball (3) of signal, at female joint cone oral area with A-A interface correspondence, if uniform three are bored from outside to inside perpendicular to inner conical surface, uncovered hole, unsteady steel ball cave (25), (26) be the signal hole, steel ball cave (25) it does not bore the holder ball lip limit of leaving, can be movable after unsteady steel ball is packed into, and make steel ball can give prominence to about 1/3 to 3/8 steel ball size of inner conical surface, steel ball can not inwardly be deviate from, (24) be the jump ring groove, (17) be the flat side of spanner of traditional male joint part, (18) signal waits the traditional male joint that is connected with the brill tube.(23) be the inner conical surface of signal female joint body, (27) are the female coupling tap oral area sections of setting upright, and (29) are the female coupling tap small end sections of setting upright.

Be the unsteady locking shift sleeve structure schematic diagram of quick safety connecting mechanism as shown in Figure 4, (12) are the inner conical surfaces of the unsteady steel ball of pushing among the figure, face angle β is from the locking angle, its value is between 5 °～7 °, (13) be the steel ball storage tank of removing when connecting, (30) be the through hole that rides the female joint external diameter, with the female joint body diameter be loose fit, (31) be the seam of dress stage clip (5), (14) be the convenient manually operated anti-slip tank of signal, this part will be subjected to bigger steel ball extruding force, and particularly conical surface hardness will be about HRC55～60 degree to require integral quenching.

Be to use the lengthening extension bar schematic diagram that the quick safety connecting mechanism technology is made as shown in Figure 5, it with Fig. 1 showed fast and safely to be connected the pin and box sub structural feature in full accord, only be with accomplish respectively the to extend two ends of the body of rod (32) of pin and box sub fast and safely, (33) signal soldered, (20) are the flat sides of spanner.

The embodiment of quick safety connecting mechanism of the present invention, description of drawings as Fig. 1 to Fig. 5 and Fig. 1 to Fig. 5, it has been that this quick safety connecting mechanism constitutes practical product form, Fig. 1 and shown in Figure 5, it all is independently a kind of product, it is to be used as equally reusable joint fast and safely of instrument and lengthening extension bar, as long as existing various drilling machine selects for use present technique can realize unloading safely and fast, increases work efficiency.

The operation of specifically unloading is that left hand is held female joint fast and safely, allow unsteady steel ball that outer leeway of removing has been arranged with the unsteady sliding sleeve (4) that locks of two fingers pulling left, insert female joint body (2) with male joint (1) this moment, discharge the locking sliding sleeve that floats, the male joint of derotation simultaneously, the locking sliding sleeve that floats is subjected to the promotion of stage clip, its inner conical surface (12) is being compeled the lowest point that unsteady steel ball can be squeezed into the spiral buckle groove initiating terminal that welcomes because of the derotation male joint rapidly, smoothly with male joint slightly dextrorotation to eliminate the gap construction of can spudding in, the sliding sleeve of the unsteady locking of pulling left can unlock under the normal condition, the removal male joint is quick, safety, convenient.

Claims

1, a kind of drilling machine quick safety connecting mechanism, it is characterized in that it is by male joint (1), female joint body (2), steel ball (3) floats, locking sliding sleeve (4) and reseting pressuring spring (5) five parts of floating are formed, its pin and box sub stage casing is a cone, the cone two ends are big small column sections of setting upright (11,9), on the small column section of setting upright (9), establish " O " shape sealing ring (6), die nipple body (10) is established three positive rotation direction spiral card button grooves (8) by big end, in three spiral buckle grooves (8) uniform in male joint, be in three cross sections that unsteady steel ball central point constitutes of position, initial climbing the lowest point, as the A-A interface, in the hole, unsteady steel ball cave (25) that the female joint cone oral area of A-A interface correspondence is established uniform three vertical inner conical surfaces, the face angle β of the inner conical surface (12) on the locking sliding sleeve (4) that floats is from the locking angle.

2, quick safety connecting mechanism according to claim 1, the hole, unsteady steel ball cave (25) that it is characterized in that three vertical inner conical surfaces that female joint cone oral area corresponding A-A interface is uniform is not a clear opening, it is outwards uncovered, inwardly then remain with holder ball lip limit (26), make steel ball can give prominence to inner conical surface 1/3 to 3/8 diameter.

3, quick safety connecting mechanism according to claim 1, the value that it is characterized in that the face angle β on the unsteady locking sliding sleeve (4) is between 5 °～7 °.

4, quick safety connecting mechanism according to claim 1, the value of cone face angle α that it is characterized in that the pin and box sub stage casing is between 8 ° 30 '～10 °.