CN103630344B - A kind of stretching device of tension tester - Google Patents
A kind of stretching device of tension tester Download PDFInfo
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- CN103630344B CN103630344B CN201310555081.7A CN201310555081A CN103630344B CN 103630344 B CN103630344 B CN 103630344B CN 201310555081 A CN201310555081 A CN 201310555081A CN 103630344 B CN103630344 B CN 103630344B
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- power car
- oil cylinder
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- melt pit
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Abstract
The stretching device of a kind of tension tester of the present invention, comprise fuselage, oil cylinder seat, pull action cylinder, power car, block fixture and tailstock, described fuselage comprises a rectangle melt pit by steel bar concrete casting, melt pit longitudinally before and after two sides be connected with side plate, biside plate is arranged with many vertical U-shaped grooves, bottom melt pit, is longitudinally embedded with two guide rails; Described tailstock plug-in mounting is in biside plate left end U-shaped groove; Described oil cylinder seat plug-in mounting is in biside plate right-hand member U-shaped groove, and described pull action cylinder is fixedly connected on the right of oil cylinder seat; Described power car is placed on the guide rail on the right of pull action cylinder, and the piston rod end of pull action cylinder is fixedly connected on the left side of power car by involutory flange; Described tailstock and power car top are equipped with thrust notch, and described block fixture is arranged in notch.The present invention utilizes melt pit as puller system fuselage, good rigidly, tensile elongation wide ranges, and structure is simple, economic and practical, safe and reliable.
Description
Technical field:
The present invention relates to a kind of mechanical property test platform, particularly relate to the stretching device of a kind of large pulling force long distance anchor chain lacerating machine, belong to horizontal tensile testing machine technical field.
Background technology:
Anchor chain typically refers to the chain for connecting anchor and hull, save with save between be connected with chain link or shackle.Simultaneously, high strength and large specification marine anchor chain is also the critical facility being related to ocean, coastal waters, inland navigation craft and offshore platform mooring anchor chain safety, because marine anchor chain and offshore platform mooring anchor chain (hereinafter referred to as anchor chain) need to work long hours under load cycling effect, the mechanical property of anchor chain is detected and is absolutely necessary.Relevant specification and relevant international standard, the national standard of each classification society all specify, tensile test must be carried out to the tensile load value that whole chain link specifies by different size and intensity rank after anchor chain thermal treatment, although the chain link after tensile test creates plastic yield, but it should reach symmetrical geometry, flawless, pit, size is no more than the tolerance of regulation; At present, to the detection of ship anchor chains particularly large ship anchor chain, usually use horizontal puller system, because puller system fuselage is product of steel member, take up room large, complex structure, and by self rigidity effects, not only single measurement limited length, and measuring accuracy is low, thus causing its inefficiency, cost is high, and the wasting of resources is large.
The patent No. is mention a kind of Novel anchor chain tensile testing in the patent of 201110321609.5; this machine comprises built-in fitting, portable beam, fixed beam; portable beam guide rail is installed in described built-in fitting; described portable beam can be arranged on portable beam guide rail along portable beam guide rail movably, and described fixed beam is fixed on the fixed beam base plate in built-in fitting; The outside of described portable beam and fixed beam is all provided with the jaw clamped by anchor chain, and described portable beam is connected with the piston driven on its oil cylinder moved, and described oil cylinder is fixedly mounted on fixed beam.Although this machine " be semisubmersible type, equipment 60% at below ground, by concrete steel structure as built-in fitting, when bearing huge side force, rigidity also has more than needed." due to this machine drawing zone between for portable beam is to fixed beam; and between portable beam and fixed beam, respectively connected oil cylinder and its piston; the length of oil cylinder is by process technology limit; therefore, and the stretching device of this machine cannot meet anchor chain lacerating machine and carry out tensile test requirement to the boats and ships and offshore platform mooring anchor chain that reach tens of rice to thousands of meters.
The patent No. is mention a kind of charger of anchor chain lacerating machine in the patent of 200910024646.2, see this patent accompanying drawing 2, this device comprises moving beam 1, fixed cross beam 2, fixed cross beam base 3, two load cylinder 4, cable link clamp device 5, mobile device 6, track 7 and anchor chain supporting guide device 80 fixed cross beam base 3 be embedded in concrete foundation 19, the bottom surface of fixed cross beam 2 and the end face of fixed cross beam base 3 are by bolt 201, and nut 202 is fixedly connected with.Two load cylinders 4 are symmetricly set in fixed cross beam 2 along the length direction of fixed cross beam 2, the mounting flange 41 of load cylinder 4 is fixedly connected with by the front side of screw 9 with fixed cross beam 2, the piston rod head 42 of load cylinder 4 is respectively by symmetrically arranged involutory flange 10, and screw 101 is fixedly connected with the rear side of moving beam 1.Track 7 is fixed on the reference plane of horizontal base 19 in couples, and mobile device 6 is arranged between the end face of track 7 and the downside of moving beam 1, and track 7 supports moving beam 1 by mobile device 6.In order to meet the requirement of the tensile load of great force value, the stability during work of guarantee equipment, the set bolt etc. of moving beam, fixed cross beam, fixed cross beam base and fixed cross beam and fixed cross beam base is respectively that intensity is high, the large-tonnage steel structural member of good rigidity and forge piece, expensive, complex structure, processing difficulties, bulk is large, causes tension tester stretching device cost very high.
Summary of the invention:
The invention provides a kind of stretching device of tension tester, its objective is that overcoming existing large-scale anchor chain lacerating machine stretching device takes up room greatly, mechanism's complexity, body poor rigidity, measuring accuracy are low, the deficiency in the technology such as single tensile elongation is short.
The present invention is achieved by the following technical programs:
A stretching device for tension tester, comprises fuselage, oil cylinder seat, pull action cylinder, power car, block fixture, tailstock; Described fuselage comprises a rectangle melt pit by steel bar concrete casting, longitudinally the side plate with horizontal plane is fixedly connected with respectively by pre-embedded bolt in two sides, front and back at melt pit, at two ends, biside plate left and right, be arranged with at least one vertical U-shaped groove respectively, be longitudinally embedded with at least one guide rail in melt pit bottom surface; Described tailstock is that slab structure plug-in mounting is in the U-shaped groove of biside plate left end; Described oil cylinder seat is that slab structure plug-in mounting is in the U-shaped groove of biside plate right-hand member; Described pull action cylinder is fixedly connected on the right of oil cylinder seat; Described power car is case structure, is placed on the guide rail on the right of pull action cylinder, and the piston rod end of pull action cylinder is fixedly connected on the left side of power car by involutory flange; Described tailstock and power car top are equipped with thrust notch, and described block fixture is arranged in notch.
Object of the present invention can also be realized further by following technical measures.
Side plate described above is monoblock type or sectional type, and the termination of described pre-embedded bolt does not exceed surface of side plate.
The spacing of side plate U-shaped groove described above is 5 ~ 10 meters.
Guide rail described above is two parallel guide rails, and and plane-parallel.
Guide rail described above is level gauge.
The two sides, front and back of power car described above are equipped with at least two guide rollers, and roller wheel shaft central axis is in surface level.
Also Support bracket is provided with between tailstock described above and oil cylinder seat.
Support bracket described above is monoblock type or assemble type.
Advantage of the present invention and beneficial effect be mainly:
Structure of the present invention is simple, economic and practical, safe and reliable.The present invention makes full use of the compressive property of ground base steel reinforced concrete as puller system fuselage, and solve the stiff problem of large-scale puller system fuselage, single tensile elongation can design as required; Adopt ground pit type fuselage simultaneously, require greatly to reduce to space environment, therefore the maximum test force of puller system and measuring distance can as required, can facilitate economic realization; The present invention is provided with multiple tracks notch on side plate, change the slot mouth of tailstock, the measuring distance of puller system can be changed, improve the dirigibility of equipment use, simultaneously by changing the block fixture on tailstock and power car in thrust groove, the capstan winch of guides, traction winch, and Support bracket, not only can detect the flexible articles such as anchor chain, wire rope, cable, also can carry out stretching to partially rigid component and detect, give full play to its measuring ability.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, this embodiment, only provides as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is vertical view of the present invention;
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is the D-D cut-open view of Fig. 2;
Fig. 4 is the C-C cut-open view of Fig. 2;
Fig. 5 is the B-B cut-open view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, be the stretching device of a kind of tension tester of the present invention, for sake of convenience, use anchor chain is tension test component.Stretching device of the present invention, comprises fuselage 1A, oil cylinder seat 3, pull action cylinder 4, power car 5, block fixture 65, tailstock 2 and Support bracket 63, guides 61, tractive winch 64 and protection net 62; Described fuselage 1A comprises a rectangle melt pit 1 by steel bar concrete casting, melt pit 1 longitudinally before and after two sides use respectively pre-embedded bolt 19 be fixedly connected with horizontal plane with kidney-shaped fixed orifice side plate 12, biside plate 12 is provided with a vertical U-shaped groove F at interval of 5 meters, bottom melt pit, is longitudinally embedded with two parallel guide rails 14; Described tailstock 2 is that slab structure plug-in mounting is in biside plate left end U-shaped groove F; Described oil cylinder seat 3 is that slab structure plug-in mounting is in biside plate right-hand member U-shaped groove F, pull action cylinder 4 is fixed on the right side of oil cylinder seat 3, described power car 5 is case structure, be placed on the guide rail 14 of oil cylinder 4 piston rod front end, the piston rod end of oil cylinder 4 is fixed on the left side of power car 5 by involutory flange 41; Described tailstock 2, power car 5 top are provided with thrust notch D groove and C groove, and block fixture 65 is arranged in D groove and C groove.
In addition, longitudinal two sides of described melt pit 1, are embedded with bolt 19 fixed side 12 respectively, side plate 12 are provided with horizontal location block 11 and perpendicular positioning block 13; Bury guide rail horizontal location plate 16 and guide rail 14 underground in the bottom of melt pit 1, guide rail 14 is fixed on guide rail horizontal location plate 16; In addition, the backing plate 15 of tailstock and oil cylinder seat is embedded with in the bottom of melt pit 1; On described side plate 12, plane 102 is higher than plane 101 on the longitudinal both sides of melt pit 1, " Z " font is used to mark time 17, upper end is fixed in the plane 102 of side plate 12, and keep " Z " font to mark time planar horizontal on 17, " Z " font 17 lower surfaces of marking time are supported in the upper plane 101 of melt pit 1 both sides, are fixed in plane 101 by pre-embedded bolt 18; For avoiding concrete different from the thermal expansivity of steel plate; side plate 12 and " Z " font are marked time and 17 are set to waist-shaped hole with the bolt connecting hole be embedded in concrete; and in the same side of melt pit 1; side plate 12 and " Z " font are marked time and 17 are all adopted sectional type to install; and side plate 12 and " Z " font mark time 17 segment length identical; expansion clearance 103 is left between section and section; guarantee that fuselage side plate 12 is smooth; and pair of U-shaped groove F is provided with at interval of 5 meters on the plane of symmetry of fuselage melt pit 1 liang of side plate 12, fix for oil cylinder seat 3 and tailstock 2.
As Fig. 1, shown in 4, in fuselage side plate 12 right-hand member symmetrical channels F, insert oil cylinder seat 3, groove F distance from bottom L is more than or equal to the width of oil cylinder seat 5, groove width W1 is greater than the thickness W2 of oil cylinder seat 3, leads 310 is filled with at the gap location of W1-W2, leads 310 is filled in the right of oil cylinder seat 3, its objective is and reduce to rupture suddenly in tension test process because of component, the reverse impact load of oil cylinder seat 3 pairs of side plates 12: on the right side of oil cylinder seat 3, be provided with two horizontally disposed oil cylinder 4 cylinder body pilot holes 34, the center of pilot hole 34 is provided with the center pit 341 running through oil cylinder seat 3, two pilot holes 34 on oil cylinder seat 3 respectively secure an oil cylinder 4, the horizontal perpendicular bisector of the two oil cylinder 4 cylinder body pilot hole lines of centres is the center of drag line of puller system, namely Fig. 4 crosses the line of P point perpendicular to paper, the groove B of oil cylinder seat 3 upper end is for puller system is when carrying out tension test, dodges member designs, oil cylinder 4 piston rod front end 41 is connected on the left side of power car 5.
As shown in Figure 5, it is " recessed " font body 50 that described power car 5 comprises one piece of section, and its thrust groove C is used to install block fixture 65, and clamping anchor chain carries out tension test, and the roller 52 that install bottom it four are merely able to walking on guide rail 14; Before and after body 50, two sides install the guide roller 51 of two rotations and horizontal plane respectively.
The roller 52 of described walking, comprise wheel seat 521, bearing 523 roller 522 and roll shaft 524, wheel seat 521 is mounted in body 50 lower grooves, it is spacing that pair roller 52 carries out front and back, its effect is directly delivered on body 50 by front and back horizontal direction acting force on wheel seat 521, reduces its set bolt acting force; The spacing of left and right roller 52 is corresponding with the distance between fuselage bottom guide rail 14.
Two guide rollers 51 that described body 50 left and right sides are installed respectively, comprising a profile is dolioform roller body 518, at roller body 518 upper end die cavity built with two double-row conical bearings 512, and carry out axial location by roller end cap 517 pairs of bearings 512, roller end cap 517 is provided with O-ring seal 516, its lower end die cavity is built with a thrust ball bearing 511, roller body 518 is loaded “ Xi " shape wheel seat 519, the lower plane of thrust ball bearing 511 acts directly on “ Xi " on the base plate of shape wheel seat 519, by the upper base plate hole of roll shaft 513 through " Xi " shape wheel seat 519, roller end cap 517 hole, two double-row conical bearings 512, isolation stepped hole between roller body bearing 512 and bearing 511, the plate hole of going to the bottom of thrust ball bearing 511 and " Xi " shape wheel seat 519, and utilize pressing plate 515 by roller bearing 513 axial restraint, in addition, lubricating cup 514 and oil guiding hole is provided with in the upper end of roll shaft 513, bearing 512 is lubricated, “ Xi " shape wheel seat is fixed on power car front and back sides by screw.
The deadweight of roller body 518 is delivered to wheel seat 519 by thrust ball bearing 511, thus ensure that roller body 518 rotates flexibly, the roller body 518 of guide roller is dolioform, be point cantact with the side plane contact of fuselage, and contact point and center of drag contour, its objective is the contact area reduced with fuselage side plate 12, thus reduce friction, improve accuracy of detection.Power car 5 front and back sides symmetry is respectively equipped with two guide rollers 51, ensure that power car 5 moves linearly along side plate, guide roller 51 can ensure that power car 5 moves linearly along side plate 12, even if having pressure imbalance phenomenon in two hydraulic jacks 4 simultaneously, power car 5 still can move smooth and easy in melt pit 1 side plate 12.Thus raising accuracy of detection.
As Fig. 1, Fig. 5, tailstock 2 is according to the length of stretching anchor chain, select distance on side plate 12 suitable U-lag F insert, tailstock 2 and the U-lag on side plate 12 coordinate with oil cylinder 3 identical with the U-lag on side plate 12, tailstock 2 stays the left side of tailstock 2 with the thickness direction gap of slot fit, and fill with leads 210 equally, its effect is identical with the leads 310 that oil cylinder seat 3 is filled, thrust groove D groove on tailstock 2 is used to install block fixture 65, and clamping anchor chain carries out tension test.
Described guides 61 acts on: refer to that tensile member (the present embodiment is anchor chain) obtains nature through guides 61 and arranges after external force is hauled out, ensure all horizontal anchor chain maintenance levels, vertical anchor chain keeps vertical, twisted phenomena after avoiding anchor chain to pull out, thus meet engaging of gangspiel on tractive winch 64 and anchor chain.The effect of described tractive winch 64: be exactly for test needs the propulsion system pulling test component.When test component is anchor chain, then on winch 64, configure gangspiel, when test component is wire rope, then arrangement of steel wires rope capstan winch on winch 64.
As shown in Figure 1, Figure 2, the D groove on tailstock 2 of the present invention and the D groove on power car 5 are after loading onto block fixture 65, and its block fixture 65 Clamping Center overlaps with the determined center of drag line of the oil cylinder 4 on oil cylinder seat 3.When puller system works, first power car 5 is resetted, the tractive winch 64 of puller system stem is by the block fixture 65 on tailstock 2 of the anchor chain on the guides 61 of its afterbody, on block on Support bracket 63, oil cylinder seat 3 on groove B to power car 5 in C notch, anchor chain is embedded in the block fixture 65 on tailstock 2 and power car 5, carry out tension test.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (3)
1. a stretching device for tension tester, comprises fuselage, oil cylinder seat, pull action cylinder, power car, block fixture, tailstock; It is characterized in that: described fuselage comprises a rectangle melt pit by steel bar concrete casting, melt pit longitudinally before and after two sides use pre-embedded bolt to be fixedly connected with the side plate of monoblock type with horizontal plane or sectional type respectively, the termination of described pre-embedded bolt does not exceed surface of side plate; At two ends, biside plate left and right, be arranged with the U-shaped groove that at least one vertical, spacing is 5 ~ 10 meters respectively, be longitudinally embedded with in melt pit bottom surface two with the closed slide of plane-parallel; Described tailstock is slab structure, and plug-in mounting is in the U-shaped groove of biside plate left end; Described oil cylinder seat is slab structure, and plug-in mounting is in the U-shaped groove of biside plate right-hand member; Also Support bracket is provided with between described tailstock and oil cylinder seat; Described pull action cylinder is fixedly connected on the right of oil cylinder seat; Described power car is case structure, be placed on the guide rail on the right of pull action cylinder, the piston rod end of pull action cylinder is fixedly connected on the left side of power car by involutory flange, the two sides, front and back of described power car are equipped with at least two guide rollers, and roller wheel shaft central axis is in surface level; Described tailstock and power car top are equipped with thrust notch, and described block fixture is arranged in notch.
2. the stretching device of a kind of tension tester as claimed in claim 1, is characterized in that: described guide rail is level gauge.
3. the stretching device of a kind of tension tester as claimed in claim 1, is characterized in that: described Support bracket is monoblock type or assemble type.
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| CN201310555081.7A CN103630344B (en) | 2013-11-08 | 2013-11-08 | A kind of stretching device of tension tester |
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| CN201310555081.7A CN103630344B (en) | 2013-11-08 | 2013-11-08 | A kind of stretching device of tension tester |
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| CN103630344A CN103630344A (en) | 2014-03-12 |
| CN103630344B true CN103630344B (en) | 2015-09-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108267476B (en) * | 2018-02-07 | 2024-02-13 | 浙江大学 | Device and method for measuring heat conductivity coefficient of concrete in tensile state |
| CN112393980B (en) * | 2020-11-11 | 2022-03-25 | 南通德众科技发展有限公司 | 3000-ton large-scale multifunctional structure test platform |
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