CN205261090U

CN205261090U - Pressure hose, connection spare part that uses rather than cooperation and composite set of two

Info

Publication number: CN205261090U
Application number: CN201520927392.6U
Authority: CN
Inventors: 朱德伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-20
Filing date: 2015-11-20
Publication date: 2016-05-25
Anticipated expiration: 2025-11-20

Abstract

The utility model discloses a pressure hose, connection spare part that uses rather than cooperation and composite set of two, its pipeline part that belongs to mechanical trade hydraulic pressure / pneumatic circuit. The problem that it has solved and currently withheld that the hose assembly manufacture craft is complicated, quality control is difficult, has withheld that the position fault rate is high, joint department exists throttle and turbulent flow, connect core and the unable reuse of hose cover, use cost is high. It mainly includes taper joint 1, locknut 2, and the lock solid nut 3, counterbored outer ring 4, and the half cone lamella 5, body 6, sealing washer 7, the fore shaft inner circle 8. Closed soon gradually in 1 last time of taper joint through the screw when lock solid nut 3, sticis on the outer circular conical surface of taper joint through the bell internal cone face of half cone lamella 5 with the body, reach the purpose of crush seal. The utility model discloses mainly used engineering machine tool hydraulic pressure pipe -line system also can be used to other fluids pipe -line system.

Description

Pressure hose, the connection parts that are mated use and the combination unit of the two

Technical field

The invention belongs to the pipeline component of machinery industry hydraulic/pneumatic system, relate in particular to construction machinery hydraulic systemHigh-pressure hose and connection parts thereof.

Background technology

As everyone knows, the Leakage of construction machinery hydraulic system is a difficult problem for puzzlement industry always, and its mesohigh is softThe leakage of oil of pipe has occupied the overwhelming majority, is the weakest link of reliability in whole hydraulic system, and maintain and replace is frequent, not only carriesHigh user's use cost, also contaminated environment, the serious body pull-off that may occur causes the malignant event of people's injures and deaths.

Hose assembly is generally divided into attaching type and detachable, and Demountable is because of sealing and difficult quality guarantee(" mechanical design handbook "-hydraulic drive. chapter 8. hydraulic pressure auxiliary member and hydraulic power unit .20-677 page 1.2.5 hose coupling,The .2004 of Chemical Industry Press version separate edition. Cheng great Xian chief editor), therefore the engineering machinery high-pressure hose of prior art is substantially allAdopt attaching type structure, as shown in Figure 1, utilize crimping equipment that joint core X, body G, Hose Jacket T are withheld and linked together, softAnnular groove (withholding tooth) is set on pipe box and joint core, thereby to strengthen, the snap-in force of withholding of tube wall is improved to anti-pulling-and-doffing performance energy. WithAlthough upper technology comparative maturity, but still there is the following obvious deficiency that is difficult to overcome: 1, complex manufacturing technology, withhold quality controlSystem difficulty: the amount of withholding is excessive is easy to damage body steel wire and glue-line, and joint core tube wall easily longitudinally subsides; The amount of withholding is again too smallAffect sealing effectiveness, and use the easy pull-off of middle tube body; 2, the latus rectum of joint core is less than pipe body drift diameter, and joint area exists jointStream, variable cross-section place is easy to produce turbulent energy loss; 3, there is polygon effect in the place of withholding, and withholds the footpath of position body one borderBe not equally distributed to decrement, the position decrement that is positioned at polygon wedge angle is less than normal, and inboard wall of tube body is easy to produce hereinRaw gauffer, causes leakage of oil; 4, joint core, Hose Jacket cannot reuse, and cause the wasting of resources, and the maintenance that has also increased user makesUse cost. Due to above technical deficiency, cause engineering machinery that the high-pressure hose place of withholding in use often occurs and leakThe faults such as oil, body pull-off. For the problem of above existence, also do in recent years a large amount of improvement, for example: for improving sealingCan, joint core withhold position some roads sealing ring is set and withhold with body on joint core (patent No.:201210167200.7; 201420600091.8); For improving anti-pull-off performance, improve annular groove on Hose Jacket and joint core and (withholdTooth) the set-up mode (patent No.: 99248007.8; 200520077228.7; 200620160181.5; 201120246152.1;201120575790.8；201220297887.1；201220359891.6；201220719076.6；201320416406.9；201320654065.9; 201320891514.1), or adopt the outer mode that connects steel wire that joint core and body are connected in outsideConnect, then increase the anti-pull-off safety curtain (patent No.: 201420464379.7) together; For avoiding joint to produce turbulent flow, jointCore is set up the flow-guiding structure (patent No.: 201420548536.2). Above technology respectively never with aspect part improved existingThe deficiency of technology, but still cannot fundamentally thoroughly eliminate above defect, especially for engineering machinery, because of its operating environmentBadly, the reason such as applying working condition complexity, field maintenance inconvenience, the reliability index of high-pressure hose is had to higher requirement, existingSome technology there is no method and meet completely client's demand, and the high-pressure hose product of a kind of high reliability of market in urgent need meets machineOperating mode need, reducing field fault power time, meet project progress, reduce part replacement cost, reduce reveal dirtyDye.

Summary of the invention

Existingly withhold hose assembly complex manufacturing technology, quality control difficulty in order to solve, withhold position fault rate high, connectThere is the problems such as throttling and turbulent flow, joint core and Hose Jacket cannot reuse, use cost height in head place, the invention provides onePlant novel pressure flexible pipe and connect parts, fundamentally solved the deficiencies in the prior art.

The present invention realizes by the following technical solutions: a kind of novel pressure flexible pipe and connection parts thereof, comprise coneShape joint, body, half cone lobe and locked instrument. The stage casing of body is tubular, and two ends are the expansion formation that stretches out along axisThe uniform bell of wall thickness. The center of taper joint is a perforation oil duct consistent with pipe body drift diameter, and one end of joint is coneBody, the small end of bullet outwardly, within the outer conical surface of bullet is inserted in the internal conical surface of body bell and with its conical surfaceCoupling forms conical surface seal and coordinates; The other end of joint is that fastening structure can coordinate with locked instrument, hydraulic part Y formation tightBe solidly connected. Half cone lobe has a datum level M and a surface is the indent conical surface of 1/2 taper seat, the axis of this indent conical surface and riseBeginning bus and termination bus are all positioned on datum level M. Half cone lobe must match use, and when assembling, make datum level M relatively and overlap,Be assemblied in the outer conical surface of body bell taking datum level M as plane of symmetry symmetry, ensure the indent conical surface reason of two half cone lobesComplete internal conical surface of formation form and coordinate with the outer conical surface coupling of body bell in opinion. When locked instrument and coneAfter shape joint, hydraulic part Y are fastened together, two half cone lobes under the constraint of radial and axial both direction, two and halfThe indent conical surface of cone lobe forms all the time in the outer conical surface that a complete internal conical surface is pressed on body bell and just keepsTrue cooperation, meanwhile the internal conical surface of body bell is pressed in the outer conical surface of taper joint bullet. WhenTaper joint, body, half cone lobe and locked instrument are coaxially assembled together by above assembly relation and ensure taper joint and lockFixing apparatus reaches after suitable fastening force, and the tube wall of body bell is just in the outer conical surface of taper joint and the indent of half cone lobeBetween the conical surface, be subject to reasonably pushing and produce the strain that meets seal request, thereby reach the order that the present invention is tightly connected. Locked instrument to axially fasten power larger, be clamped between the outer conical surface of taper joint and the indent conical surface of half cone lobeThe suffered extruding force of bell tube wall is also larger, and therefore sealing effectiveness can be controlled easily by locked instrument, therebyAvoid the generation of leaking. Within the rational regime of elastic deformation that can bear at tube wall, fastening force is larger, and sealing effectiveness moreGood, the ability of opposing body pull-off is also stronger. In theory, the bell of body is objectively also conducive to stop body pull-off, whenWhen body is subject to axial tension, what on body bell, flow perpendicular to the oriented less cross section of the material on the cross section of axis becomesGesture, and because the size in cross section has been limited between the outer conical surface of taper joint and the indent conical surface of half cone lobe, thereforeLarge cross section will must dwindle area of section by larger crimp by little cross section, thereby it is larger that tube wall is subject toExtruding, produce the ability of larger opposing pull-off, so body bell can draw tighter and tighter in the time bearing axial tension, fromThe moving ability that increases opposing pull-off, avoids the generation of pull-off phenomenon.

A combination unit for novel pressure flexible pipe and connection parts thereof, comprises taper joint, body and locked instrument,It is characterized in that: the two ends of body are provided with along axis and stretch out and expand the bell forming, the joint cylindrical of taper jointThe conical surface 1.5 is inserted in the interior formation cone match of bell internal conical surface 6.2; Also comprise two half cone lobes (5 that pairing is used; 5a;5b), half cone lobe has the indent conical surface 5.5, and parcel is assemblied in the outer conical surface 6.3 of body bell, and locked instrument is with suitableFastening force coordinate with taper joint two half cone lobes (5; 5a; 5b) form constraint at radial and axial both direction, andBetween the joint outer conical surface 1.5 of taper joint and the indent conical surface 5.5 of half cone lobe, form the extruding to body bell tube wallSo that body bell tube wall produces the strain that meets seal request.

Further, stretch out and be provided with annular lip from the large end of body bell, the internal diameter of lip equals coneThe outside diameter of shape mouth internal conical surface 6.2, the external diameter of lip is not less than the outside diameter of bell outer conical surface 6.3.

Further, described lip also comprises counterbored outer ring 4 and the stepped inner ring 8 of ring-type, and the two is enclosed within body oral area alsoBody enhancement layer is firmly connected between counterbored outer ring 4 inner surfaces and stepped inner ring 8 outer surfaces.

Further, from half cone lobe (5; 5a; The conelet face end of the indent conical surface 5.5 5b) outwards extends axially out semicolumnFace II 5.2, semi-cylindrical II 5.2 coordinates and wraps up in its surface with the pipe face 6.1 of body.

Further, half cone lobe (5; 5a; The seamed edge rounding of semi-cylindrical II 5.2 oral areas 5b) is in order to avoid damage body appearanceFace.

Further, locked instrument is a lock screw 3, and inner surface is provided with locknut inner cylinder face I 3.1, locknut inner circleCylinder II 3.3 and locknut shoulder 3.2, the outer one end of locknut inner cylinder face II 3.3 is also provided with locknut internal thread 3.4 and taperThe external screw thread II 1.3 of joint 1 coordinates; Half cone lobe 5 is provided with the locknut inner cylinder face II of semi-cylindrical III 5.7 and lock screw 33.3 coordinate, and are subject to its radial constraint; And the circular bead surface 5.4 that half cone lobe 5 arranges is against on locknut shoulder 3.2, be subject to its axial constraint;The diameter of locknut inner cylinder face I 3.1 should ensure to pass body lip (K1; K2; , and can be enclosed within the semicolumn of half cone lobe 5 K3)In face I 5.1.

Further, locked instrument comprises locking ring I 13, locking ring II 14, alignment pin 16; Taper joint is flange taperJoint 1a, half cone lobe is flange half cone lobe 5a, and flange half cone lobe 5a datum level M is provided with dowel hole 5a.2, and it is fixed to installPosition pin 16, the flange half cone lobe 5a that pairing is used locates and is assembled together by alignment pin 16, and with locking ring I 13, locking ringII 14 is entangled its periphery and is locked its radially free degree.

Further, half cone lobe, for band wing limit flange half cone lobe 5b, is provided with edge with the both sides of wing limit flange half cone lobe 5bThe wing limit 5b.1 that datum level M extends outward, is provided with some installing holes that match with lock bolt 17 on the 5b.1 of wing limit, lockThe band wing limit flange half cone lobe 5b that fixing bolt 17 uses two pairings through the installing hole on the 5b.1 of wing limit is fastened as a whole.

Further, in the joint outer conical surface 1.5 of taper joint, at least one oil groove can be set and settle sealing ring 7.

Further, described sealing ring 7 is replaceable is sealing shroud 9 or at bell internal conical surface 6.2 compound one decks in positionElaxtic seal.

A kind of novel pressure flexible pipe, comprises body, and tube wall is divided into Inner glue-line, enhancement layer, outer glue-line 3 from inside to outside successivelyIndividual functional layer, is characterized in that: the two ends of body are provided with along axis and stretch out and expand the bell forming, and bell comprisesBell internal conical surface 6.2 and bell outer conical surface 6.3; Stretch out and be provided with annular lip from the large end of body bellMouthful, the internal diameter of lip equals the outside diameter of bell internal conical surface 6.2, and the external diameter of lip is not less than bell outer conical surface6.3 outside diameter; Described lip also comprises counterbored outer ring 4 and the stepped inner ring 8 of ring-type, and the two is enclosed within body oral area and will managesBody enhancement layer is firmly connected between counterbored outer ring 4 inner surfaces and stepped inner ring 8 outer surfaces.

What be used in conjunction with above-mentioned pressure hose is connected parts, and these connection parts comprise taper joint, lockingTwo half cone lobes that device and pairing are used, the joint outer conical surface 1.5 of taper joint is inserted in the interior shape of bell internal conical surface 6.2Become cone match; Half cone lobe has the indent conical surface 5.5, and parcel is assemblied in the outer conical surface 6.3 of body bell, locked instrumentCoordinate with taper joint with suitable fastening force two half cone lobes (5; 5a; 5b) form approximately at radial and axial both directionBundle, and form body bell tube wall between the joint outer conical surface 1.5 of taper joint and the indent conical surface 5.5 of half cone lobeExtruding meet the strain of seal request so that body bell tube wall produces.

Further, also comprise locking ring I 13, locking ring II 14, alignment pin 16; On flange half cone lobe 5a datum level M, establishHave dowel hole 5a.2, alignment pin 16 can be installed, the flange half cone lobe 5a that pairing is used locates and is assemblied in by alignment pin 16Together, and entangle its periphery by locking ring I 13, locking ring II 14 and lock its radially free degree.

Further, be provided with the both sides of the wing limit flange half cone lobe 5b wing limit 5b.1 extending outward along datum level M,On the 5b.1 of wing limit, be provided with some installing holes that match with lock bolt 17, lock bolt 17 is through the installation on the 5b.1 of wing limitThe band wing limit flange half cone lobe 5b that hole is used two pairings is fastened as a whole.

Compared with prior art, the invention has the beneficial effects as follows: the place's of withholding leakage of oil, the body of 1, having eliminated prior art pull outDe-phenomenon; 2, eliminated the variable cross-section at pipe joint place, avoided the generation of throttling, turbulent flow, increased pipeline simultaneously and pass through energyPower; 3, solved the problem that joint cannot reuse, economized on resources; 4, simplified manufacturing process, it is simple that quality control becomesReliably; 5, avoided the body injury that annular groove interlock body may cause of withholding of prior art; 6, be beneficial to environmental protection, use peaceEntirely, easy to maintenance, use cost is low.

Brief description of the drawings

Fig. 1 be prior art withhold hose assembly and pipeline connecting parts structural representation thereof.

Fig. 2 be a kind of novel pressure flexible pipe of the present invention and the embodiment 1 that connects parts thereof partly cut open front view, in figure, manageThe lip structure of body is K1 type.

Fig. 3 is the A-A cutaway view of Fig. 2.

Fig. 4 is the partial enlarged drawing II of Fig. 2.

Fig. 5 is the partial enlarged drawing I of Fig. 2, and the lip structure of body is K1 type.

Fig. 6 is the partial enlarged drawing I of Fig. 2, and the lip structure of body is K2 type.

Fig. 7 is the partial enlarged drawing I of Fig. 2, and the lip structure of body is K3 type.

Fig. 8 is the structural representation that in Fig. 5, sealing ring 7 changes sealing shroud 9 into, and the lip structure of body is K1 type.

Fig. 9 be a kind of novel pressure flexible pipe of the present invention and the embodiment 2 that connects parts thereof partly cut open front view and partCutaway view.

Figure 10 is the B-B cutaway view of Fig. 9.

Figure 11 be a kind of novel pressure flexible pipe of the present invention and the embodiment 3 that connects parts thereof partly cut open front view and partCutaway view.

Figure 12 is the C-C cutaway view of Figure 11.

In figure, 1, taper joint; 1.1, external screw thread I; 1.2, outer six sides; 1.3, external screw thread II; 1.4, transition circle cylinder;1.5, joint outer conical surface; 2, stop nut; 3, lock screw; 3.1, locknut inner cylinder face I; 3.2, locknut shoulder; 3.3, lockFemale inner cylinder face II; 3.4, locknut internal thread; 4, counterbored outer ring; 5, half cone lobe; 5.1, semi-cylindrical I; 5.2, semi-cylindricalII; 5.3, platform; 5.4, circular bead surface; 5.5, the semicircle conical surface; 5.6, fillet surface; 5.7, semi-cylindrical III; 6, body; 6.1, pipeFace; 6.2, bell internal conical surface; 6.3, bell outer conical surface; 7, sealing ring; 8, stepped inner ring; 9, sealing shroud; K1, lipI; K2, lip II; K3, lip III; M, datum level; Y, hydraulic part; 1a, flange taper joint; 1a.1, flange I; 5a, flange halfCone lobe; 5a.1, flange II; 5a.2, dowel hole; 10, flange gasket; 11, check ring I; 12, check ring II; 13, locking ringI; 14, locking ring II; 15, bolt; 16, alignment pin; 17, lock bolt; 5b, band wing limit flange half cone lobe; 5b.1, wing limit.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described

Embodiment 1:

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of novel pressure flexible pipe and connect parts, comprises 1, taper joint;2, stop nut; 3, lock screw; 4, counterbored outer ring; 5, half cone lobe; 6, body; 7, sealing ring; 8, stepped inner ring.

Body 6 is flexible flexible pipe, and tube wall is divided into Inner glue-line, enhancement layer, 3 functions of outer glue-line from inside to outside successivelyLayer. The stage casing of body is tubular, and two ends are to stretch out and expand the uniform bell of wall thickness forming, bell bag along axisDraw together bell internal conical surface 6.2 and bell outer conical surface 6.3. Stretch out and be provided with annular lip from the large end of bellI K1, as shown in Figure 5.

Lip I K1 also comprises counterbored outer ring 4 and the stepped inner ring 8 of ring-type, and its formation method is as follows: from body 6 bellsLarge end outwards extend axially out one section of body, inside and outside glue-line is peelled off in mouth of pipe position and makes it to form one section with counterbored outer ring 4 etc.Wide exposed enhancement layer, is enclosed within counterbored outer ring 4 and stepped inner ring 8 respectively on the external cylindrical surface of this section of exposed enhancement layer and inner circleCylinder is interior and keep end face alignment, dwindles and is out of shape tightly by exposed thereby then make it internal diameter by contraction counterbored outer ring 4Enhancement layer is squeezed on the outer surface of stepped inner ring 8, forms the lip I K1 firmly connecting. In order further to increase this connectionFirmly degree, arranges some roads annular grooving on the inner surface of counterbored outer ring 4 and on the outer surface of stepped inner ring 8, make itLower concavo-convex relatively and sting the exposed enhancement layer of tight body, reach the object of firm connection. The inner cylinder face diameter of lip I K1 equals coneThe outside diameter of shape mouth internal conical surface 6.2, the external cylindrical surface diameter of lip IK1 is not less than the large end of bell outer conical surface 6.3Diameter.

The endoporus of taper joint 1 is a perforation oil duct consistent with pipe body drift diameter, and the outer surface of taper joint 1 from right to leftBe followed successively by: conicle end joint outer conical surface 1.5, transition circle cylinder 1.4, external screw thread II 1.3, outer six sides 1.2, outer outwardlyScrew thread I 1.1. Joint outer conical surface 1.5 is inserted in the bell internal conical surface 6.2 of body 6 and forms conical surface seal and coordinates; Outer spiral shellLine II 1.3 coordinates with locknut internal thread 3.4; Transition circle cylinder 1.4 coordinates with the inner cylinder face of body lip K1. Taper joint 1Joint outer conical surface 1.5 on be provided with at least 1 road sealing groove and place sealing ring 7, to strengthen sealing effectiveness. Outer six sides 1.2For convenient, external screw thread I 1.1 is fastened to hydraulic part Y.

The same side of the datum level M of half cone lobe 5 has semi-cylindrical I 5.1, semi-cylindrical II 5.2, the semicolumn of coaxial lineFace III 5.7 and the semicircle conical surface 5.5, axis is positioned at datum level M. Half cone lobe 5 must use in pairs, makes datum level M phase when assemblingTo and overlap and be assemblied in the bell outer conical surface 6.3 of body 6 taking datum level M as plane of symmetry symmetry after, just form oneComplete overall structure, the semi-cylindrical I 5.1 of two half cone lobes 5 and semi-cylindrical III 5.7 just formed respectively two completeExternal cylindrical surface, and link together as intermediate transition surface by circular bead surface 5.4 and fillet surface 5.6, semi-cylindrical III 5.7 and lockGu the locknut inner cylinder face II 3.3 of nut 3 coordinates and is subject to radial constraint, circular bead surface 5.4 is against on locknut shoulder 3.2 and is subject toAxial constraint; The semicircle conical surface 5.5 of two half cone lobes 5 forms outside the bell of a complete internal conical surface and body 6Taper seat 6.3 coordinates and wraps up its surface; Large end one side direction of the semicircle conical surface 5.5 axially extends to the lip position of body 6 outwardAnd be against on the inner side end of counterbored outer ring 4; 5.2 of the semi-cylindrical II of two half cone lobes 5 form a complete interior cylinderFace coordinates with the pipe face 6.1 of body 6 and wraps up its surface, and oral area seamed edge rounding is in order to avoid damage outer surface of tube body; Semi-cylindrical IA platform 5.3 is also cut out at 5.1 top, and with convenient wrench clamping, while preventing from assembling, half cone lobe 5 rotates with lock screw 3.

The outer surface of lock screw 3 is outer hexagon, and inner surface is provided with locknut inner cylinder face I 3.1, locknut inner cylinder faceII 3.3 and locknut shoulder 3.2, outer one section of locknut inner cylinder face II 3.3 be also provided with can with the external screw thread II of taper joint 1The 1.3 locknut internal threads 3.4 that connect. When lock screw 3 and taper joint 1 is by after together with screw threads for fastening, two half cone lobes 5Radial and axially just retrained by the inner cylinder face II 3.3 of lock screw 3 and locknut shoulder 3.2 simultaneously. Locknut inner cylinder face I3.1 diameter should ensure to pass the lip of body 6, and can be enclosed within the semi-cylindrical I 5.1 of half cone lobe 5.

Stop nut 2 is connected in the external screw thread II 1.3 of taper joint 1 jointly with lock screw 3, when lock screw 3 tightBe affixed to behind position, by rotation stop nut 2 make its near and hold out against lock screw 3 and reach locking object.

Concrete assembly method is:

The 1st step, gets a taper joint 1 that assembles sealing ring 7, connects end external screw thread I 1.1 and is assembled to hydraulic part YUpper also fastening putting in place; The 2nd step, is assembled to stop nut 2 in the external screw thread II 1.3 of taper joint 1; The 3rd step, gets body 6, willLock screw 3 ends of thread are set on body 6 through body 6 bells outwardly and leave bell one segment distance party B continuous dress after an action of the bowelsJoin; The 4th step, gets two half cone lobes 5, makes its semicircle conical surface 5.5 be engaged in the taper of body 6 taking datum level M as plane of symmetry symmetryIn mouth outer conical surface 6.3, clamp two half cone lobes 5 and keep end face alignment and datum level M to overlap; The 5th step, is enclosed within lock screw 3In the semi-cylindrical III 5.7 of half cone lobe 5, and its locknut shoulder 3.2 is against on the circular bead surface 5.4 of half cone lobe 5; The 6th step, connectsLock screw 3, on the external screw thread II 1.3 of taper joint 1, fasteningly puts in place and ensures suitable moment; The 7th step, keeps locking spiral shellMother 3 is motionless, and rotation stop nut 2 makes it near lock screw 3 and holds out against, and ensures reliable locking moment; The 8th step, by above-mentionedSame method assembles the other end of body 6.

The concrete mechanism of action is:

At lock screw 3 gradually near taper joint 1 screwing by screw thread in the process linking together, by itWhen locknut inner cylinder face II 3.3 retrains the radially free degree of semi-cylindrical III 5.7 of half cone lobe 5, by its locknut platformThe circular bead surface 5.4 that shoulder 3.2 promotes half cone lobe 5 moves axially, and the semicircle conical surface 5.5 of half cone lobe 5 promotes the bell of body 6 simultaneouslyOuter conical surface 6.3 moves together, forces bell internal conical surface 6.2 outer conical surface of close taper joint 1 gradually of body 61.5 and fit together. Now continue to screw lock screw 3, radially and be axially subject to respectively lock screw due to half cone lobe 53 locknut inner cylinder face II 3.3 and the restriction of locknut shoulder 3.2, the semicircle conical surface 5.5 of half cone lobe 5 and connecing of taper joint 1Distance between outer conical surface 1.5 can only continue to reduce, thereby the tube wall of sealing ring 7 and body 6 bells is produced to extruding, there is strain in effect, forms elastic packing. In rational regime of elastic deformation, the clamp load torque of lock screw 3 moreGreatly, extrusion effect and strain are also larger, and the effect of elastic packing is also better. When the clamp load torque of lock screw 3 reaches symbolThereby after the sealing effectiveness that the appropriate value of closing requirement has ensured to require, keep the motionless stop nut 2 that simultaneously rotates of lock screw 3Make it near lock screw 3 and be fastened to satisfactory locking Tightening moment value, thereby complete, the anti-of lock screw 3 being uncagedFixed. The bell of body 6 be squeezed fastening after, can prevent the pull-off phenomenon between body and joint; And the annular lip of body 6Mouth structure K1 can be conducive to allow body enhancement layer directly bear pull-out force, thereby the inside and outside glue-line of protection is avoided excessive stretching, halfUnder the restriction of cone lobe 5, stop the pull-off of body, strengthened the reliability that body connects.

The structure of body 6 lips can have multiple variation, and the present embodiment has also been enumerated lip II K2, two kinds of lips of lip III K3Structure, as shown in Figure 6, Figure 7. It is consistent that K2 structure and K1 compare profile, and main variation is: removed counterbored outer ring 4 and fore shaftInner ring 8, with Inner glue-line replacement stepped inner ring 8, fills up the position of counterbored outer ring 4 with enhancement layer, thus simplified structure; K3 structure byThe large end of bell of body 6 directly outwards extends axially acquisition, and its inner cylinder face diameter equals the large of bell internal conical surface 6.2End diameter, and external cylindrical surface diameter equals the outside diameter of bell outer conical surface 6.3, thus structure is simplified more. For suitableAnswer the structural change of lip K2, K3, the structure of half cone lobe 5 is done accommodation, from the large end one side direction outer shaft of the semicircle conical surface 5.5Can be coated the structure of lip outer surface and end at lip outer face to extending, as shown in Figure 6, Figure 7.

In addition, sealing ring 7 also can be replaced by sealing shroud 9, and corresponding structural change as shown in Figure 8, is no longer set forth at this. AobviousAnd easily see, the effect of sealing shroud 9 also can be used in the mode of compound one deck elaxtic seal on body bell internal conical surfaceRealize.

Embodiment 2:

As shown in Figure 9, Figure 10, a kind of novel pressure flexible pipe and connection parts thereof, compared with embodiment 1, embodiment 2 changesBecome the original mode with lock screw locking, removed lock screw 3, will be threaded and become flange connection, correspondingGround, taper joint 1 use replaces with the flange taper joint 1a of flange, and half cone lobe 5 use are got with the flange half cone lobe 5a of flangeIn generation, locking ring I 13, locking ring II 14, check ring I 11, check ring II 12, bolt 15, flange gasket 10, fixed have been increased simultaneouslyPosition pin 16, other structure remains unchanged.

Locking ring I, locking ring II are the rectangular annulus of section, and internal diameter size should be greater than the lip external diameter of body 6, and withThe external cylindrical surface interference fit of flange half cone lobe 5a, check ring I, check ring II limit respectively locking ring I, locking ring IIAxial location.

Flange taper joint 1a has retained joint outer conical surface 1.5, the transition circle cylinder 1.4 of taper joint 1 in embodiment 1And the perforation oil duct at center, and use the external screw thread II 1.3, outer that has replaced taper joint 1 with the flange I 1a.1 of some installing holesSix sides 1.2 and external screw thread I 1.1.

The inner-cavity structure of flange half cone lobe 5a is the same with half cone lobe 5, has retained the semicircle conical surface of half cone lobe 5 in embodiment 15.5, thereby the interior surface features such as semi-cylindrical II 5.2 keeps adapting with the contour structures of body 6 and coordinating with its outer surface;Outer surface is provided with the installed surface that can coordinate with locking ring I, locking ring II, and check ring mounting groove is set keeps off with mounting springThereby circle limits locking annulate shaft to position. The end face of flange half cone lobe 5a is also provided with the flange II 5a.1 of some installing holes,Can be used in conjunction with the flange I 1a.1 of flange taper joint 1a, the quantity of installing hole and position, size and flange I 1a.1 are oneOne correspondence. On the datum level M of flange half cone lobe 5a, be also provided with 2 symmetrical dowel hole 5a.2, alignment pin 16 can be installed,Thereby ensure that the flange half cone lobe 5a of pairing use is in correct rigging position.

Flange gasket 10 is a ring flange, is placed between flange taper joint 1a and the adpting flange of flange half cone lobe 5a,Main Function is: the distance between outer conical surface 1.5 and the semicircle conical surface 5.5 of flange half cone lobe 5a of restriction flange taper joint 1aFrom, thereby ensure that the bell tube wall of body 6 is subject to the extruding force of suitable size and produces satisfactory rational elasticity becomingShape, and then be met the sealing effectiveness of requirement. The thickness of flange gasket 10 can be determined according to actual needs.

Concrete assembly method is:

The 1st step, gets 1 flange half cone lobe 5a, packs 2 alignment pins 16 into dowel hole 5a.2; The 2nd step, gets body 6,Check ring II, locking ring II, check ring I, locking ring I successively through the bell of body 6, are enclosed within to pipe by above orderOn the pipe face of body 6, and leave bell one segment distance, to facilitate follow-up assembling; The 3rd step, will install the flange of alignment pin 16Half cone lobe 5a is assembled in the bell outer conical surface 6.3 of body 6, makes its semicircle conical surface 5.5 and its laminating; Get again 1 flangeHalf cone lobe 5a, is assembled to its symmetry on body 6 bells, and makes alignment pin 16 insert its dowel hole 5a.2; The 4th step, folderTight two flange half cone lobe 5a, keep two datum level M to overlap, successively by locking ring I, check ring I, locking ring II, check ringII is assembled on the external cylindrical surface correspondence position of flange half cone lobe 5a. Now being total in alignment pin 16 and locking ring I, locking ring IIUnder same-action, two flange half cone lobe 5a have been combined into a global facility and have been wrapped on the bell of body 6; The 5th step, gets1 flange taper joint 1a and 1 flange gasket 10, be enclosed within flange gasket 10 flange taper joint 1a above and lean against with flange 1a.1Together and installing hole align, then the joint outer conical surface 1.5 of flange taper joint 1a is inserted and is assembled flange half cone lobeIn the bell of the body 6 of 5a, and make flange gasket 10 lean against the upper installing hole that keeps of flange 5a.1 to align, put on bolt 15; The 6thStep, is assembled to hydraulic part Y by the above-mentioned assembly assembling upper, fastening good bolt 15; The 7th step, fills by above-mentioned same modePrepare the other end of body 6.

The concrete mechanism of action is:

The present embodiment is determined the correct cooperation position of the flange half cone lobe 5a of pairing use by datum level M, alignment pin 16,By locking ring I, locking ring II, the two is reliably fixed together, limits its radially free degree; Limit cone by flange gasket 10Axial mounting distance between shape joint 1 and flange half cone lobe 5a, thus ensure that the bell tube wall of body 6 connects in flange taperBetween the joint outer conical surface 1.5 of 1a and the semicircle conical surface 5.5 of flange half cone lobe 5a, be subject to the extruding force of suitable size and produceThe raw strain that meets seal request; The fastening bolt putting in place 15 keeps above-mentioned assembling to close when above-mentioned extruding force is providedSystem.

Embodiment 3:

As shown in Figure 11, Figure 12, a kind of novel pressure flexible pipe and connection parts thereof, compared with embodiment 2, embodiment 3Change the radially locking mode of embodiment 2, removed alignment pin 16, locking ring I, locking ring II, check ring I, spring catchCircle II, has increased lock bolt 17, and correspondingly, flange half cone lobe 5a replaces with band wing limit flange half cone lobe 5b. Band wing limit flangeIn the outer conical surface of half cone lobe 5b, extend wing limit 5b.1 along datum level M to both sides, on the 5b.1 of wing limit, be provided with some and lockingThe installing hole that bolt 17 matches. Other structure is consistent with embodiment 2.

Concrete assembly method is:

Get two band wing limit flange half cone lobe 5b, datum level M is overlapped and the symmetrical bell outer cone that is assemblied in body 6On face 6.3, by two bands, wing limit flange half cone lobe 5b is fastening is through the installing hole on the 5b.1 of wing limit to get successively lock bolt 17One. Follow-up assembly method is with reference to embodiment 2.

The concrete mechanism of action is:

The flange half cone lobe 5b that the present embodiment uses pairing by datum level M, lock bolt 17 is by correct cooperation positionPut the two is fixed together reliably, lock bolt 17 plays the effect that location clamps simultaneously. Other the mechanism of action and realityExecute example 2 same.

The foregoing is only preferably detailed description of the invention of the present invention, but protection scope of the present invention is not limited to this.Obviously, according to actual needs, can also make many variations. For example: taper joint 1 can be also bent sub, can alsoLengthen arbitrarily as required change shape; Type of attachment both can be for external screw thread connects, and can be also that internal thread or employing are spelledLegal blue connection; Taper joint 1 both can be used as an independently parts existence, can also be integrated in the upper conduct of hydraulic part YThe connecting interface of hydraulic part ... Any be familiar with those skilled in the art the present invention disclose technical scope in, rootBe equal to and replace or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed in protection scope of the present invention itIn.

Claims

1. a combination unit for novel pressure flexible pipe and connection parts thereof, comprises taper joint, body and locked instrument, itsBe characterised in that: the two ends of body are provided with along axis and stretch out and expand the bell forming, the joint outer cone of taper jointFace (1.5) is inserted in formation cone match in bell internal conical surface (6.2); Also comprise two half cone lobes (5 that pairing is used; 5a;5b), half cone lobe has the indent conical surface (5.5), and it is upper that parcel is assemblied in the outer conical surface (6.3) of body bell, locked instrument withSuitable fastening force coordinates with taper joint two half cone lobes (5; 5a; 5b) form constraint at radial and axial both direction,And form body bell pipe between the joint outer conical surface (1.5) of taper joint and the indent conical surface (5.5) of half cone lobeThe extruding of wall is so that body bell tube wall produces the strain that meets seal request.

2. the combination unit of a kind of novel pressure flexible pipe according to claim 1 and connection parts thereof, is characterized in that:Stretch out and be provided with annular lip from the large end of body bell, the internal diameter of lip equals bell internal conical surface (6.2)Outside diameter, the external diameter of lip is not less than the outside diameter of bell outer conical surface (6.3).

3. the combination unit of a kind of novel pressure flexible pipe according to claim 2 and connection parts thereof, is characterized in that:Described lip also comprises counterbored outer ring (4) and the stepped inner ring (8) of ring-type, and the two is enclosed within body oral area and by body enhancement layer jailBe solidly connected between counterbored outer ring (4) inner surface and stepped inner ring (8) outer surface.

4. the combination unit of a kind of novel pressure flexible pipe according to claim 1 and connection parts thereof, is characterized in that:From half cone lobe (5; 5a; The conelet face end of the indent conical surface (5.5) 5b) outwards extends axially out semi-cylindrical II (5.2), semicircleCylinder II (5.2) coordinates and wraps up in its surface with the pipe face (6.1) of body.

5. the combination unit of a kind of novel pressure flexible pipe according to claim 4 and connection parts thereof, is characterized in that:Half cone lobe (5; 5a; The seamed edge rounding of semi-cylindrical II (5.2) oral area 5b) is in order to avoid damage outer surface of tube body.

6. according to the combination unit of the arbitrary described a kind of novel pressure flexible pipe of claim 1-5 and connection parts thereof, its spyLevy and be: locked instrument is a lock screw (3), inner surface is provided with locknut inner cylinder face I (3.1), locknut inner cylinder face II(3.3) and locknut shoulder (3.2), the outer one end of locknut inner cylinder face II (3.3) is also provided with locknut internal thread (3.4) and coneThe external screw thread II (1.3) of shape joint (1) coordinates; Half cone lobe (5) is provided with the lock of semi-cylindrical III (5.7) and lock screw (3)Female inner cylinder face II (3.3) coordinates, and is subject to its radial constraint; And the circular bead surface (5.4) that half cone lobe (5) arranges is against locknut shoulder(3.2) upper, be subject to its axial constraint; The diameter of locknut inner cylinder face I (3.1) should ensure to pass body lip (K1; K2; K3),And can be enclosed within the semi-cylindrical I (5.1) of half cone lobe (5).

7. according to the combination unit of the arbitrary described a kind of novel pressure flexible pipe of claim 1-5 and connection parts thereof, its spyLevy and be: locked instrument comprises locking ring I (13), locking ring II (14), alignment pin (16); Taper joint is flange taper joint(1a), half cone lobe is flange half cone lobe (5a), and flange half cone lobe (5a) datum level (M) is provided with dowel hole (5a.2), canAlignment pin (16) is installed, and the flange half cone lobe (5a) that pairing is used is located and is assembled together by alignment pin (16), and with lockingRing I (13), locking ring II (14) are entangled its periphery and are locked its radially free degree.

8. according to the combination unit of the arbitrary described a kind of novel pressure flexible pipe of claim 1-5 and connection parts thereof, its spyLevy and be: half cone lobe is band wing limit flange half cone lobe (5b), be with the both sides of wing limit flange half cone lobe (5b) to be provided with along datum level(M) wing limit (5b.1) extending outward, is provided with some installing holes that match with lock bolt (17) on wing limit (5b.1),The band wing limit flange half cone lobe (5b) that lock bolt (17) uses two pairings through the installing hole on wing limit (5b.1) is fasteningBe integrated.

9. according to the combination unit of the arbitrary described a kind of novel pressure flexible pipe of claim 1-5 and connection parts thereof, its spyLevy and be: in the joint outer conical surface (1.5) of taper joint, at least one oil groove can be set and settle sealing ring (7).

10. the combination unit of a kind of novel pressure flexible pipe according to claim 9 and connection parts thereof, its feature existsIn: described sealing ring (7) is replaceable is sealing shroud (9) or at the compound one deck elastic packing in bell internal conical surface (6.2) positionMaterial.

11. 1 kinds of novel pressure flexible pipes, comprise body, and tube wall is divided into Inner glue-line, enhancement layer, outer glue-line 3 from inside to outside successivelyIndividual functional layer, is characterized in that: the two ends of body are provided with along axis and stretch out and expand the bell forming, and bell comprisesBell internal conical surface (6.2) and bell outer conical surface (6.3); Stretch out and be provided with annular from the large end of body bellLip, the internal diameter of lip equals the outside diameter of bell internal conical surface (6.2), the external diameter of lip is not less than bell cylindricalThe outside diameter of the conical surface (6.3); Described lip also comprises counterbored outer ring (4) and the stepped inner ring (8) of ring-type, and the two is enclosed within bodyOral area is also firmly connected to body enhancement layer between counterbored outer ring (4) inner surface and stepped inner ring (8) outer surface.

12. 1 kinds be used in conjunction with the pressure hose described in claim 11 be connected parts, these connection parts comprise coneTwo half cone lobes that shape joint, locked instrument and pairing are used, is characterized in that: the joint outer conical surface (1.5) of taper jointBe inserted in formation cone match in bell internal conical surface (6.2); Half cone lobe has the indent conical surface (5.5), and parcel is assemblied in bodyThe outer conical surface (6.3) of bell is upper, and locked instrument coordinates with taper joint with suitable fastening force two half cone lobes (5;5a; 5b) form constraint at radial and axial both direction, and at the joint outer conical surface (1.5) of taper joint and half cone lobeThe extruding forming between the indent conical surface (5.5) body bell tube wall meets seal request so that body bell tube wall producesStrain.

13. connection parts according to claim 12, is characterized in that: from half cone lobe (5; 5a; Indent conical surface 5b)(5.5) conelet face end outwards extends axially out semi-cylindrical II (5.2), the pipe face of semi-cylindrical II (5.2) and body(6.1) coordinate and wrap up in its surface.

14. connection parts according to claim 13, is characterized in that: half cone lobe (5; 5a; Semi-cylindrical II 5b)(5.2) the seamed edge rounding of oral area is in order to avoid damage outer surface of tube body.

15. according to the arbitrary described connection parts of claim 12-14, it is characterized in that: locked instrument is a lock screw(3), inner surface is provided with locknut inner cylinder face I (3.1), locknut inner cylinder face II (3.3) and locknut shoulder (3.2), in locknutThe outer one end of face of cylinder II (3.3) is also provided with locknut internal thread (3.4) and joins with the external screw thread II (1.3) of taper joint (1)Close; Half cone lobe (5) is provided with semi-cylindrical III (5.7) and coordinates with the locknut inner cylinder face II (3.3) of lock screw (3), is subject to itRadial constraint; And the circular bead surface (5.4) that half cone lobe (5) arranges is against locknut shoulder (3.2) above, be subject to its axial constraint; In locknutThe diameter of face of cylinder I (3.1) should ensure to pass body lip (K1; K2; , and can be enclosed within the semi-cylindrical I of half cone lobe (5) K3)(5.1) on.

16. according to the arbitrary described connection parts of claim 12-14, it is characterized in that: also comprise locking ring I (13), lockAdmittedly encircle II (14), alignment pin (16); Flange half cone lobe (5a) datum level (M) is provided with dowel hole (5a.2), and it is fixed to installPosition pin (16), the flange half cone lobe (5a) that pairing is used is located and is assembled together by alignment pin (16), and uses locking ring I(13), locking ring II (14) is entangled its periphery and is locked its radially free degree.

17. according to the arbitrary described connection parts of claim 12-14, it is characterized in that: band wing limit flange half cone lobe (5b)Both sides be provided with the wing limit (5b.1) extending outward along datum level (M), on wing limit (5b.1), be provided with some with locking spiral shellThe installing hole that bolt (17) matches, the band wing that lock bolt (17) uses two pairings through the installing hole on wing limit (5b.1)Limit flange half cone lobe (5b) is fastened as a whole.

18. according to the arbitrary described connection parts of claim 12-14, it is characterized in that: the joint outer cone of taper jointAt least one oil groove can be set on face (1.5) and settle sealing ring (7).

19. according to the arbitrary described connection parts of claim 18, it is characterized in that: described sealing ring (7) is replaceable for closeBig envelope (9) or at the compound one deck elaxtic seal in bell internal conical surface (6.2) position.