CN108571566A - Twisted wire wedge - Google Patents
Twisted wire wedge Download PDFInfo
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- CN108571566A CN108571566A CN201710149607.XA CN201710149607A CN108571566A CN 108571566 A CN108571566 A CN 108571566A CN 201710149607 A CN201710149607 A CN 201710149607A CN 108571566 A CN108571566 A CN 108571566A
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- Prior art keywords
- twisted wire
- wedge
- valley
- face
- segmentation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
- F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps
- F16G11/044—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps friction clamps deforming the cable, wire, rope or cord
- F16G11/048—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps friction clamps deforming the cable, wire, rope or cord by moving a surface into the cable
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
Dividing wedge (6) has crooked inner surface (6a), the segmentation wedge (6) gradually increases wall thickness from front end terminad portion and is formed, and the segmentation wedge (6) is covered in the peripheral surface of CFRP cables (1) to surround the peripheral surface of the CFRP cables (1) in specific length.When the multiple segmentation wedge (6) is configured at the peripheral surface of the CFRP cables (1), the gap (G) extended along its length is ensured between opposed end face (30L, 30R).The gap (G) has the sloping portion of the valley (1b) along the CFRP cables (1) surrounded by the segmentation wedge (6).
Description
Technical field
The present invention relates to twisted wire wedges.
Background technology
The known prestressed concrete for applying compression stress to concrete by pre-tensioner mode or rear tensioning mode.It answers in advance
Not only compressibility is strong for power concrete, but also draftability is strong, widely used in building field, building field or bridge field.
The tensile force applied to the tensioning material in Transducers Embedded in Concrete is utilized to the compression stress that prestressed concrete applies
Reaction force.In order to which material tensioning will be tensioned, the end section for stablizing and holding securely tensioning material is needed, is needed reality
The end component of the now holding firmly fixes (firm) in the end section of tensioning material.
A kind of rope installation part is disclosed in patent document 1, keeps restricting by inner cylinder, inner cylinder is tightened by outer barrel.
Existing technical literature
Patent document
Patent document 1：International Publication WO2015/125220
Inner cylinder is made of four segmentation divided parts, and four segmentation divided parts are respectively provided with the flexure plane contacted with rope.
Rope is surrounded by four segmentation divided parts.It is formed with gap in the longitudinal direction between adjacent segmentation divided parts.
The shape for the inner cylinder that four segmentation divided parts combinations are constituted is truncated cone.Outer barrel has along inner cylinder
The inner surface of shape.Inner cylinder is set to enter outer barrel by acting on the tensile force on rope, as a result, the fixed interior barrel and an external barrel on rope
(installation part of restricting).
When continuing to apply tensile force to rope, inner cylinder gradually gos deep into outer barrel, the gap between adjacent segmentation divided parts
It becomes narrow gradually.Due to divide divided parts gap turn narrow, to rope by from surrounding strongly to tighten.
When rope is tightened by strength from surrounding, rope (especially its outer layer line) is easy to draw to squeeze into (entrance) adjacent segmentation
The mode in the gap of sub-unit is deformed or stretches.Tensile force is being continued to between adjacent segmentation divided parts
In the case that gap is further narrow as, when a part for rope squeezes out gap, the part of extrusion is divided divided parts and bites and press
It bursts, damage may be will produce.Rope bites the main of the fixed performance reduction for damaging the intensity decline or rope installation part as rope
Factor.
Invention content
It is an object of the present invention to prevent end component from especially being prevented by the damage of the fixed twisted wire of carry out inclined wedge
It states and bites damage.
Twisted wire wedge according to the present invention is characterized in that, has multiple segmentation wedges with crooked inner surface, described point
Wedge is cut to gradually increase wall thickness from front end terminad portion and formed, the segmentation wedge be covered in the peripheral surface of twisted wire to
The peripheral surface of the twisted wire is surrounded in specific length.The multiple segmentation wedge is configured at opposed when the peripheral surface of the twisted wire
The gap ensured between end face has the part of the valley along the twisted wire surrounded by the segmentation wedge.
Twisted wire is made up of twisted more plain lines, and peripheral surface is formed with the valley of spiral extension along its length.
Twisted wire wedge is made of the multiple segmentation wedges being covered on the peripheral surface for the twisted wire for having this lay configuration.Dividing wedge can be with
It is the wedge (two halfbodies) that twisted wire wedge is divided into two formation along its length, can also be the wedge for being divided into three formation
Body is divided into the wedge of four formation.Divide wedge its inner surface bending, a part for the circumferencial direction of twisted wire is by table in bending
Bread encloses.By the way that multiple segmentation wedges are arranged along the circumferencial direction of twisted wire, except the gap ensured between segmentation wedge
Except, a part for the length direction of twisted wire is surrounded by multiple segmentation wedges.
Segmentation wedge gradually increases wall thickness from its front end terminad portion and is formed, therefore, by by multiple segmentation wedges
The twisted wire wedge for combining and constituting has from the gradual thicker shape in front end terminad portion.The shape of twisted wire wedge is typically made greatly
Cause truncated cone but it is also possible to be other shapes such as Pyramids.Twisted wire wedge is placed into identical as the shape of twisted wire wedge
It is used in the hollow sleeve of shape.Multiple segmentation wedges are squeezed from surrounding using the hollow inner wall of sleeve and tightened, thus
Sleeve can be firmly fixed at twisted wire via twisted wire wedge.
The opposed end face of the multiple segmentation wedges configured in a manner of the peripheral surface for surrounding twisted wire does not contact each other, and is twisting
Gap that quantity identical as the segmentation quantity of wedge is ensured on line wedge, extending along its length.This is to allow twisted wire
Further tightening.By being ensured in advance that gap, even if because can if continuation twisted pair wire application tensile force causes twisted wire diameter to reduce
So that twisted wire wedge is goed deep into sleeve, can tighten twisted wire from further around by multiple twisted wire wedges at this time.It can be by twisted wire wedge
And above-mentioned sleeve continues to be firmly fixed at twisted wire.Above-mentioned gap can by will divide wedge curved concave depth compared with
It is formed shallowly to ensure.
As above-mentioned, when twisted wire wedge gos deep into sleeve, gap between adjacent segmentation wedge (between opposed end face) by
Gradual change is narrow.
According to the present invention, because the gap between the segmentation wedge has along the twisted wire surrounded by the segmentation wedge
Valley part (valley follows gap portion), so even if by twisted wire wedge from surrounding strongly to tighten twisted wire to twisted wire
It deforms or stretches, the twisted wire for being deformed or being stretched also is difficult to enter the gap portion of the valley along the twisted wire.
Prevent the twisted wire (its outer layer line) in the gap turn narrow between dividing wedge from being clamped and be crushed by the gap, the feelings of twisted wire damage
Condition.It can prevent the strength reduction of twisted wire and the reduction of the fixed force of twisted wire wedge and sleeve.
Twisted wire can also be that using carbon fiber as the synthetic fibers of representative or will tie up fiber made of more synthetic fibers
Bundle strand is closed and the fiber cable or rope of making, can also be steel that is steel wire or the harness for making steel wire be twisted is twisted and making
Cord or rope.
Due to twisted wire valley along twisted wire length direction spiral extension, chased after along the valley of the valley of twisted wire
With gap portion there is the direction (axial direction of the twisted wire of installation twisted wire wedge) from the front end of connection twisted wire wedge and terminal part to tilt
Angle.
Preferably, the gap ensured between the opposed end face includes to be followed along the valley of the valley of the twisted wire
Gap portion and gap portion is not followed along the valley of the valley of the twisted wire is non-, the valley follows gap portion will be described
The non-gap portion of following of valley is clipped in the middle, and is formed in the longitudinal direction multiple.Segmentation wedge can be formed as easy
The shape being covered in around twisted wire.
In one embodiment, the valley follows the length length for following gap portion more non-than the valley of gap portion
It is long.It may insure that the valley along the valley of the twisted wire follows gap portion in longer distance.
In other embodiment, the valley follows direction and the non-side for following gap portion of the valley of gap portion
Intersect in the range of 75 °~120 °.Valley follows gap portion because of the valley along twisted wire, direction and twisted wire
Valley is consistent or at least approximate direction.It is non-that the valley that gap portion intersects in the range of 75 °~120 ° is followed with valley
Gap portion is followed along the different direction of valley (the plain line for constituting strand cabling) from twisted wire to extend.By being chased after with valley
With gap portion and valley it is non-follow the mode that clearance portion is intersected in the range of 75 °~120 ° design segmentation wedge end face,
The specific part that the end face of segmentation wedge can be mitigated (especially constitutes that valley follows gap portion and valley is non-follows clearance portion
Point boundary part part) on stress concentration, it may also be ensured that valley follows gap portion in longer distance.In turn,
Because the non-gap portion of following of valley is intersected relative to plain line with deeper angle (angle for being closer to right angle), can make
Valley non-follow also is difficult to be clamped twisted wire (its outer layer line) in gap portion.
In preferred embodiment, multiple slots are formed in the crooked inner surface, the slot is along the composition twisted wire
Plain line formed, and the diameter of the plain line for being sized for constituting the twisted wire of the slot.Because of crooked inner surface and twisted wire (structure
At the plain line of twisted wire) substantially contact, so the fixed performance of twisted wire wedge can be improved.In addition, because can be existed using multiple slots
Crooked inner surface constrains twisted wire, so such as twisted wire can be prevented in twisted wire wedge to rotate, can make upper between segmentation wedge
Valley of the gap (valley follows gap portion) stated exactly along twisted wire.
In one embodiment, the holding section for being useful for carrying out position alignment is respectively formed on multiple segmentation wedges.Holding section
Such as it can be by being formed in the protrusion of a segmentation wedge and being formed in another segmentation wedge adjacent with a segmentation wedge
The recess portion engaged with the protrusion is constituted.Because can fix (guiding) it is multiple segmentation wedges relative positions (length direction
The relative position of relative position and circumferencial direction), it is possible to multiple segmentation wedges are accurately configured at around twisted wire.
It is for example above-mentioned that gap portion is followed along the valley of the twisted wire wedge of the valley of twisted wire, by by multiple segmentation wedge groups
Opposed end face is formed each other when conjunction.If being conceived to the end face of wedge, the present invention can also provide as follows.
That is, twisted wire wedge according to the present invention has it is characterized in that, gradually increasing wall thickness from front end terminad portion and being formed
There is the crooked inner surface contacted with twisted wire, separates be arranged in around twisted wire in the state of gap in the longitudinal direction, thus exist
Specific length surrounds the peripheral surface of the twisted wire, in the both sides for forming gap, the twisted wire wedge crooked inner surface
Side of sidewall portion end face and another twisted wire wedge adjacent with the twisted wire wedge crooked inner surface both sides side of sidewall portion end
Face is formed with the inclination of the valley along the twisted wire surrounded.
Description of the drawings
Fig. 1 shows the extremity fixing structures being fixed on the terminal part of carbon fibre reinforced plastic cable.
Fig. 2 is the longitudinal section view of extremity fixing structure.
Fig. 3 is to indicate carbon fibre reinforced plastic cable by the stereogram of the situation of two segmentation wedge clampings.
Fig. 4 is the stereogram exploded view of two segmentation wedges and the carbon fibre reinforced plastic cable being clamped by two segmentation wedges.
Fig. 5 is to indicate carbon fibre reinforced plastic cable by the side view of the situation of two segmentation wedge clampings.
Fig. 6 is the amplification end view drawing splitted along the line VI -- VI of Fig. 5.
Fig. 7 is the amplification end view drawing splitted along the VII-VII lines of Fig. 5.
Fig. 8 is the amplification end view drawing splitted along the VIII-VIII lines of Fig. 5.
Fig. 9 is the figure for indicating other embodiment, is two segmentation wedges and divides the fibre reinforced that wedges are clamped by two
The stereogram exploded view of plastics cable.
Specific implementation mode
Fig. 1 is to indicate extremity fixing structure (may also be referred to as carbon applied to carbon fibre reinforced plastic (CFRP) cable 1 processed
Fiber composite cable (Carbon Fiber Composite Cable)) (hereinafter referred to as CFRP cables 1) terminal part implementation
The stereogram of example.Fig. 2 is the longitudinal section view of extremity fixing structure.Fig. 3 be indicate CFRP cables 1 terminal part installation there are two
Divide the stereogram of the situation of wedge, Fig. 4 is its stereogram exploded view.Fig. 5 is divided there are two the terminal part installations of CFRP cables 1
Side view when wedge is cut, Fig. 6~Fig. 8 is put along what the line VI -- VI, VII-VII lines, VIII-VIII lines of Fig. 5 was splitted
Large end face figure.
Referring to Fig.1~Fig. 6, CFRP cable 1 is that continuously epoxy resin 21 will be made to be impregnated in carbon fiber 22 with more to obtain
Composite material it is twisted as the carbon fiber bundle 1a of circular 7 carbon fibre reinforced plastics of section of material and form 1 × 7 knot
The cable of structure (centered on 1 carbon fiber bundle 1a, the structure that 6 carbon fiber bundle 1a are obtained is twisted around it).It can also make
With glass fibre, boron fibre, aramid fibre, polyethylene fibre, PBO (polyparaphenylene's Benzo-dioxazole) fiber, other
Fiber replaces carbon fiber 22.Other resins such as polyamide can also be used to replace epoxy resin 21.
The profile diameter of CFRP cables 1 e.g., about 15.2mm.Hereinafter, the carbon fiber bundle 1a for constituting CFRP cables 1 is claimed
Make plain line 1a.6 element line 1a of outer layer are along the length direction spiral extension of CFRP cables 1, the shape between adjacent plain line 1a
The valley 1b of spiral extension.In Fig. 6~Fig. 8, to constitute CFRP cables 1 outer layer 6 element line 1a denote respectively A~
The letter of F.
The extremity fixing structure of the embodiment has：It is set to the metal twisted wire wedge 10 of the terminal part of CFRP cables 1
(two segmentation wedges 6)；And metal sleeve 5, twisted wire wedge 10 are closely embedded in metal sleeve 5.
Referring to FIG. 1 and FIG. 2, sleeve 5 is cylindrical shape, and the peripheral surface near terminal part is formed with thread groove 5b.Internal
Hollow 5a by cross section substantially oblong and from the front end terminad of sleeve 5 it is gradually increased in a manner of be shaped generally as truncated cone
Shape.It is inserted into the terminal part of CFRP cables 1 into the hollow 5a of sleeve 5 from the small front opening of opening of sleeve 5, and by CFRP lines
The terminal part of cable 1 is drawn from the big distal opening that is open to outside.
In the terminal part installation twisted wire wedge 10 for being drawn out to external CFRP cables 1.Twisted wire wedge 10 is complete by having such as 175mm
Two long elongated segmentation wedges 6 are constituted.Two segmentation wedges 6 are the structure of the same shape and size, such as pass through mold
Molding making.It is recessed that it is formed with the bending contacted with CFRP cables 1 along its length in the inner surface of segmentation wedge 6 with reference to Fig. 4
Face 6a.Divide the wall thickness of wedge 6 as in the past thin front end gradually thickens to the terminal part of opposite side, divides when by two
When wedge 6 combines, the shape substantially oblong of cross section, and it is gradually thicker from front end terminad portion.Two are divided
Shape and the shape of the hollow 5a of sleeve 5 when wedge 6 combines is roughly the same.Divide wedge 6 materials'use intensity, toughness and
The excellent spheroidal graphite cast-iron of fatigue strength or intensity, toughness, the fatigue strength and excellent austenite or martensitic of corrosion stability
Stainless steel alloy.
In the terminal part of segmentation wedge 6, be circumferentially formed thereon the slot 7 for being useful for setting O-ring (diagram omit), pass through by
Two segmentation wedges 6 combine, and slot 7 becomes ring-type.By the way that O-ring is arranged in as cricoid slot 7, it can simply keep logical
Cross the state that the terminal part of CFRP cables 1 is clamped in two segmentation wedges 6.
In the terminal part of segmentation wedge 6, engaging protuberances 8A is also respectively formed in the both sides of left and right across curved concave 6a
With engaging recessed part 8B.When two segmentation wedges 6 are combined, the engaging protuberances 8A of a segmentation wedge 6 and another segmentation wedge 6
Engaging recessed part 8B engagings, the engaging protuberances 8A of another segmentation wedge 6 engage with the engaging recessed part 8B of a segmentation wedge 6.Because logical
Cross the relative position (relative position of length direction that engaging protuberances 8A and engaging recessed part 8B fixes (guiding) two segmentation wedges 6
And the relative position of circumferencial direction), it is possible to CFRP cables 1 are accurately clamped from both sides by two segmentation wedges 6.
With reference to Fig. 4, being formed in the fore-end of the curved concave 6a of segmentation wedge 6 makes the widened conical surface 6d of bore.It is logical
The fore-end crossed in the curved concave 6a of segmentation wedge 6 is pre-formed and makes the widened conical surface 6d of bore, prevents or mitigate segmentation
The damage of CFRP cables 1 in the fore-end of wedge 6.
With reference to Fig. 2, the segmentation wedge 6 for clipping CFRP cables 1 is pressed into sleeve 5 from the big distal opening of the opening of sleeve 5
Hollow 5a in.Segmentation wedge 6 is pressed by the inner wall of the hollow 5a of sleeve 5 from surrounding to be tightened.Sleeve 5 is via two points
Wedge 6 (twisted wire wedge 10) fixed (wedging) is cut in the terminal part of CFRP cables 1.Sleeve 5 is usually fixed at two ends of CFRP cables 1
End, but can also only be fixed on a terminal part.In terminal part the CFRP cables 1 of sleeve 5 are fixed with via twisted wire wedge 10 for example
It may be used as the tensioning material of prestressed concrete.
Such as above-mentioned with reference to Fig. 4, segmentation wedge 6 has the curved concave 6a extended along its length in its inner surface, has
The structure of the opposite side opening of curved concave 6a.In addition, being formed with wavy side of sidewall portion at left and right sides of curved concave 6a.
In the following description, side wall portion is referred to as left side wall 6L, another side of sidewall portion of opposite side is referred to as right side wall portions 6R.Left side
The inner surface of wall portion 6L and right side wall portions 6R also constitute curved concave 6a.
With reference to Fig. 4 and Fig. 6, it is formed with helical form along its length in the inner surface (curved concave 6a) of segmentation wedge 6 and prolongs
The multiple shallow slot 6b stretched.Multiple spiral helicine slot 6b have the surface shape for having transferred CFRP cables 1 to install segmentation wedge 6
The shape of shape.As above-mentioned, CFRP cables 1 are justified by being twisted 6 sections around it centered on the circular plain line 1a of 1 section
The plain line 1a of shape and make, therefore, 6 element line 1a of outer layer are along the length direction spiral extension of CFRP cables 1.It is bent recessed
The multiple spiral helicine slot 6b formed on the 6a of face along the plain line 1a for the spiral extension for constituting CFRP cables 1 each plain line
1a, and there is size (width) corresponding with the plain diameter of line 1a.Spiral helicine slot 6b be also formed in above-mentioned left side wall 6L,
The inner surface of right side wall portions 6R.
When two segmentation wedges 6 are installed on CFRP cables 1,6 twisted elements of the outer layer of CFRP cables 1 are constituted
Line 1a is chimeric with multiple each spiral groove 6b of spiral groove 6b of curved concave 6a are formed in respectively.In turn, it is formed in
It is spiral helicine between crest line (raised line) 6c (with reference to Fig. 6) and plain line 1a of spiral extension between adjacent spiral groove 6b
Valley 1b is chimeric.Can make the outer surfaces of CFRP cables 1 and segmentation wedge 6 curved concave 6a (multiple spiral helicine slot 6b and
Multiple spiral helicine crest line 6c) Existence of Global Solution removes, thus, it is possible to which local power is prevented to be applied to CFRP cables 1, and segmentation wedge
The hold of 6 pairs of CFRP cables 1 improves.
In addition, constraining the movement of CFRP cables 1 by being formed in multiple spiral groove 6b of curved concave 6a.Therefore, energy
It enough prevents the CFRP cables 1 in segmentation wedge 6 from moving or rotating along its length, the CFRP lines in segmentation wedge 6 can be kept
The posture of cable 1 is fixed.
It is provided with end face as defined in the wall thickness by segmentation wedge 6 with reference to Fig. 4, side of sidewall portion 6L, the 6R for dividing the left and right of wedge 6
30L、30R.End face 30L, 30R are in the longitudinal direction just swimmingly to elapse, (the reference when dividing wedge 6 from side
Fig. 3, Fig. 5), it can be seen that it has been alternatively formed mountain portion and valley in the longitudinal direction.
It is described in detail with reference to Fig. 4, in left side wall 6L, from the front end terminad portion of segmentation wedge 6 shape in order
The portions Cheng Youshan 51L, mountain portion 52L, mountain portion tri- mountains 53L portion.On the other hand, in right side wall portions 6R, from the front end of segmentation wedge 6
Terminad portion is formed with mountain portion 51R, mountain portion 52R, mountain portion tri- mountains 53R portion in order.In addition, left side wall 6L, right side wall portions
The respective three mountains portion 51L~53L of 6R, 51R~53R are as from the front end terminad portion of segmentation wedge 6, height gradually becomes
It is high.
It illustrates, passes through gradient (inclination) with reference to Fig. 4 and Fig. 5, end face 30L, the 30R for being conceived to both sides wall portion 6L, 6R
Low-angle dip face 31L, 31R that be small and extending longer distance and gradient are formed greatly and apart from shorter high-dipping face 32L, 32R
The shape of mountain portion 51L, 52L, 53L, 51R, 52R, 53R.Low-angle dip face 31L, 31R and high-dipping face 32L, 32R are substantially orthogonal, because
This, mountain portion 51L, 52L, 53L, 51R, 52R, 53R, which have with the boundary of low-angle dip face 31L, 31R and high-dipping face 32L, 32R, is
Top, approximate right angle triangle shape.Three of three mountains portion 51L, 52L, 53L and right side wall portions 6R of left side wall 6L
Mountain portion 51R, 52R, 53R are formed in symmetrical position, but the difference is that, the low-angle dip face 31L of left side wall 6L to
Rise (height of side of sidewall portion is gradually got higher) towards the direction of terminal part from the front end of segmentation wedge 6, in contrast, right side wall
To declining from the front end of segmentation wedge 6 towards the direction of terminal part, (height of side of sidewall portion gradually drops the low-angle dip face 31R of portion 6R
It is low).
With reference to Fig. 5, the angle of inclination of low-angle dip face 31L, 31R (constitute CFRP cables according to the strand spiral angle degree of CFRP cables 1
The strand spiral angle degree of the strand spiral angle degree of the plain line 1a of 16 outer layers, the valley 1b being formed between plain line 1a) it is designed.Fig. 5
In, the strand spiral angle degree of plain line 1a (valley 1b) is indicated by θ 1, indicates that the angle of inclination of low-angle dip face 31L, 31R are (tightened up by θ 2
For, the angle of inclination of the interior side edge part 11 of aftermentioned low-angle dip face 31L, 31R).By the inclination for making low-angle dip face 31L, 31R
The strand of angle, θ 2 and element line 1a (valley 1b) twists angle, θ 1 unanimously, and CFRP cables 1 (plain line 1a) can be made to connect in longer distance
It, can be with continuously along the inner surface (the slot 6b on the above-mentioned inner surface for forming Yushan Hill portion) of left side wall 6L, right side wall portions 6R
Segmentation wedge 6 is stably fixed on CFRP cables 1.
With reference to Fig. 6~Fig. 8, low-angle dip face 31L, 31R shapes in a manner of being distorted according to the height and position of side of sidewall portion 6L, 6R
At.That is, low-angle dip face 31L, 31R when for positioned at lower position, compared with its outside edge (outside crest line), interior side edge part
(inside crest line) 11 is located at high position (Fig. 6, Fig. 8), low-angle dip face 31L, 31R when for positioned at high position, lateral border
Portion is in the position (Fig. 6, Fig. 8) higher than interior side edge part 11.In centre position (Fig. 7), the outside edge of low-angle dip face 31L, 31R
With interior side edge part 11 in roughly same height position.By the way that low-angle dip face 31L, 31R are formed in a distorted way, it can be ensured that
When two segmentation wedges 6 of combination the clearance G that is formed in the overall with of low-angle dip face 31L, 31R substantially at equal intervals.
With reference to Fig. 5, by the way that two segmentation wedges 6 are combined, the end face 30L of the left side wall 6L of a segmentation wedge 6 with it is another
One segmentation wedge 6 right side wall portions 6R end face 30R it is opposed, and one segmentation wedge 6 right side wall portions 6R end face 30R with it is another
The end face 30L for dividing the left side wall 6L of wedge 6 is opposed.Valley of the mountain portion of one segmentation wedge 6 across clearance G and another wedge 6
It is opposed, on the contrary, the valley of a segmentation wedge 6 is opposed with another segmentation mountain portion of wedge 6 across clearance G.
With reference to Fig. 5 and Fig. 6~Fig. 8, when two segmentation wedges 6 being combined in the state of clipping CFRP cables 1, two points
End face 30L, the 30R for cutting both sides wall portion 6L, 6R of wedge 6 are not contacted each other, and are formed with along length side in the both sides of segmentation wedge 6
To the clearance G of extension.As above-mentioned because end face 30L, 30R of both sides wall portion 6L, 6R towards length direction just swimmingly to push away
Move, thus clearance G from side along its length with wavy extension.Clearance G can be by making the curved concave of segmentation wedge 6
The section radius of the depth ratio CFRP cables 1 of 6a is shallow to be ensured.
Even if in the state that segmentation wedge 6 is pressed into sleeve 5, the both sides of two segmentation wedges 6 are can also ensure that
Clearance G (with reference to Fig. 2).For example, to divide the side for the clearance G for ensuring 0.5mm~2mm or so when wedge 6 is pressed into sleeve 5
Formula adjusts the depth of above-mentioned curved concave 6a.By being ensured in advance that clearance G, even if continuing to apply CFRP cables 1 as a result,
Tensile force so that dividing wedge 6 gradually gos deep into sleeve 5, or continues long-term persistently so that the reduction of 1 diameter of CFRP cables, also can
It enough utilizes two segmentation wedges 6 to tighten CFRP cables 1 securely from surrounding, can continue to two segmentation wedges 6 and sleeve 5 are steady
Surely it is fixed on the terminal part of CFRP cables 1.
Such as above-mentioned with reference to Fig. 5 and Fig. 6~Fig. 8, low-angle dip face 31L, 31R are formed to have along composition CFRP cables 1
The strand of plain line 1a (valley 1b) twists the angle of angle, θ 1, and in turn, the clearance G between low-angle dip face 31L, 31R is along twisted element
The spiral helicine valley 1b on the surface of the CFRP cables 1 formed between line 1a.That is, the clearance G formed by low-angle dip face 31L, 31R
Follow the valley 1b (Fig. 6~Fig. 8) of CFRP cables 1.Therefore, even if continuing to make two points to the application tensile force of CFRP cables 1
The clearance G cut between wedge 6 narrows, and plain line 1a is also difficult to enter the clearance G of two segmentation wedges 6, and plain line 1a is difficult to be bitten
Between (being held on) two segmentation wedges 6 (low-angle dip face 31L, 31R) (that is, being not easy to be divided the conquassation of wedge 6).Can effectively it prevent
Only caused by segmentation wedge 6 CFRP cables 1 bite damage.This also means that can prevent the reduction of the intensity of CFRP cables 1,
And the reduction of the fixed performance of segmentation wedge 6 and sleeve 5.
Need not say more so that the clearance G between low-angle dip face 31L, 31R along CFRP cables 1 surface it is spiral helicine
The mode of valley 1b is pre-formed the spiral helicine slot 6b formed on the curved concave 6a of above-mentioned segmentation wedge 6 (with reference to Fig. 4
And Fig. 6~Fig. 8).In addition, as above-mentioned, by spiral helicine slot 6b, always with fixation on the curved concave 6a of segmentation wedge 6
Posture configuration CFRP cables 1.So as to configure two points by way of the embedded spiral helicine slot 6b of CFRP cables 1 (plain line 1a)
Cut wedge 6, the clearance G between low-angle dip face 31L, 31R along the surface of CFRP cables 1 spiral helicine valley 1b.Because no
It needs very carefully to position two segmentation wedges 6, so the production job (segmentation of the extremity fixing structure in engineering site etc.
The fixed operation of wedge 6 and sleeve 5) become easy progress.
By low-angle dip face 31L, 31R clearance G formed part along CFRP cables 1 spiral helicine valley 1b (valley
Follow gap portion), on the other hand, by the part of high-dipping face 32L, 32R clearance G formed not along spiral helicine valley 1b
(valley is non-to follow gap portion).But the valley that is formed by high-dipping face 32L, 32R it is non-follow gap portion towards with by delaying
The valley that inclined surface 31L, 31R are formed follows the substantially orthogonal direction of gap portion, i.e. towards the spiral with composition CFRP cables 1
The substantially orthogonal direction of plain line 1a (valley 1b) that shape extends, in addition, because the distance of high-dipping face 32L, 32R are short, it is plain
Line 1a is also difficult to follow gap portion into the valley formed by high-dipping face 32L, 32R is non-, it is difficult to which damage is bitten in generation.
With reference to Fig. 5 be described in detail segmentation wedge 6 end face 30L, 30R (low-angle dip face 31L, 31R and high-dipping face 32L,
Structure 32R).
As above-mentioned, holding (is twisted by by the twisted CFRP cables constituted of more (being 7 in the embodiment) plain line 1a
Line) 1 twisted wire wedge (hold component) 10 includes：Combination is to surround the length of CFRP cables 1 in the state that CFRP cables 1 are clamped
Multiple (being two in the embodiment) segmentation wedges 6 of the part in direction.Segmentation wedge 6 separately includes：Clip CFRP cables 1
In the state of combine when across clearance G opposed end face 30L, 30R.Clearance G between opposed end face 30L, 30R, plain line
A part of the valley 1b for the spiral extension that the mutual boundaries of 1a are formed is from outside by visual confirmation.
End face 30L, 30R have low-angle dip face 31L, 31R and high-dipping face 32L, 32R, the inside of low-angle dip face 31L, 31R
Edge 11 is formed as a part of substantially parallel with the valley 1b of CFRP cables 1.End face 30L, 30R have multiple (embodiments
In be three) interior side edge part 11, multiple interior side edge parts 11 incline each other by a part of non-parallel urgency formed with valley 1b
The interior side edge part 12 of inclined-plane 32L, 32R link.
Segmentation wedge 6 is designed to direction and high-dipping face 32L, 32R of the interior side edge part 11 of low-angle dip face 31L, 31R
The direction of interior side edge part 12 intersects in 75 °~120 ° of range (hereinafter referred to as condition (1)).When the lower limit, i.e. less than condition (1)
At 75 °, boundary portion between the interior side edge part 11 of low-angle dip face 31L, 31R and the interior side edge part 12 of high-dipping face 32L, 32R at
For anxious angle, stress is easy to concentrate, or is difficult to ensure the draft gradient of the interior side edge part 12 of high-dipping face 32L, 32R, therefore non-
It is preferred that.When the upper limit, i.e. 120 ° more than condition (1), the interior side edge part 11 of low-angle dip face 31L, 31R account for end face 30L, 30R
Ratio (length) easily reduces, therefore not preferred.
In the present embodiment, the plain line 1a of CFRP cables 1 is constituted relative to the direction D parallel with the axial 1c of CFRP cables 1
Angle, θ 1 is twisted with about 7 °~10 ° of strand, the valley 1b between plain line 1a also twists angle, θ 1 with about 7 °~10 ° of strand.It is slow to incline
The interior side edge part 11 of inclined-plane 31L, 31R are formed as substantially parallel with the valley 1b of CFRP cables 1 as above-mentioned, therefore, interior side edge part
11 tilt angle theta 2 is also about 7 °~10 °.The direction of the interior side edge part 11 of low-angle dip face 31L, 31R and high-dipping face 32L,
The angle, θ 3 that the direction of the interior side edge part 12 of 32R intersects is designed as about 85 °, meets above-mentioned condition (1).
According to the twisted wire wedge 10, it includes to be formed as and CFRP cables that two segmentations wedge 6 respective end face 30L, 30R, which have,
Low-angle dip face 31L, 31R of a part of parallel interior side edge part 11 of 1 valley 1b, therefore, by so that CFRP cables 1 paddy
Portion 1b is located at the mode between the respective interior side edge parts of opposed low-angle dip face 31L, 31R 11 of two segmentation wedges 6 in CFRP
Two segmentation wedges 6 are installed on cable 1, can when CFRP cables 1 are clamped by segmentation wedge 6 opposed end face 30L, 30R it
Between in the clearance G that is arranged setting along twisting the part twisted the valley 1b of angle, θ 1 and followed.Therefore, even if being received via twisted wire wedge 10
In the case that tight CFRP cables 1 and element line 1a are deformed or stretched, the plain line 1a for being deformed or being stretched also is difficult to squeeze
Go out clearance G, CFRP cables 1 can be inhibited to be sandwiched into end face 30L, 30R.Therefore, even if twisted wire wedge 10 is pressed into deeply in sleeve 5
In the case that clearance G narrows, also CFRP cables 1 can be inhibited to be clamped by end face 30L, 30R and be crushed and damage CFRP cables 1
Situation.
In turn, according to the twisted wire wedge 10, because multiple segmentation wedges 6 respective end face 30L, 30R include multiple interior lateral margins
Portion 11 and by by multiple interior side edge parts 11 in a manner of connected to each other with the interior side edge part 12 of a part of not parallel formation of valley 1b,
Therefore, multiple inclined clearance Gs of mode to be followed along the valley 1b for twisting twirl angle, θ 1 can be set.Therefore, can extend
It is set to the distance of the valley 1b of the CFRP cables 1 of clearance G.Between further inhibiting CFRP cables 1 to be held in
Gap G and the case where damage.
In turn, according to the twisted wire wedge 10, be designed as, the interior side edge part 11 of low-angle dip face 31L, 31R than high-dipping face 32L,
The interior side edge part 12 of 32R is grown, and the direction of interior side edge part 11 and the direction of interior side edge part 12 intersect in the range of 75 °~120 °.
Therefore, the stress in the boundary portion of the interior side edge part 12 of the interior side edge part 11 and high-dipping face 32L, 32R of low-angle dip face 31L, 31R
Concentration is alleviated, and can be extended with along the length for the part for twisting the inclined clearance G of mode that the valley 1b for twisting angle, θ 1 is followed.
It is damaged therefore, it is possible to further inhibit CFRP cables 1 to be held in clearance G.
Fig. 9 indicate other embodiments segmentation wedge 6A, with above-mentioned segmentation wedge 6 the difference is that, terminal part
Engaging protuberances 8A and engaging recessed part 8B is not formed (with reference to Fig. 4).As above-mentioned, engaging protuberances 8A, engaging recessed part 8B (draw for fixation
Lead) relative positions of two segmentation wedges 6 and be arranged.It is such as above-mentioned even if not having engaging protuberances 8A, engaging recessed part 8B, because
It is formed with spiral helicine slot 6b in the curved concave 6a of segmentation wedge 6A, so clipping two segmentation wedge 6A of CFRP cables 1
Big dislocation will not occur.Especially, excellent if it is considered that segmentation wedge is accurately installed on the time needed for CFRP cables 1
Choosing is pre-formed above-mentioned engaging protuberances 8A, engaging recessed part 8B.
In the above embodiments, to surrounded using segmentation wedge 6 dichotomous, 6A the embodiments of CFRP cables 1 into
Gone explanation, but can also utilize and be divided into three, the segmentation wedge that is divided into four surrounds CFRP cables 1.In addition, in above-mentioned reality
Apply in example, left and right side of sidewall portion 6L, 6R opposed end face 30L, 30R have difference of height (waveform), while from segmentation wedge 6,
The front end of 6A is formed as the crow flies towards terminal part, but can also be along the circumferential direction formed by bending.
The explanation of reference numeral
1 CFRP cables (twisted wire)
1a element lines
1b valley
6,6A divides wedge
6a curved concaves
6b helicla flutes
6L, 6R side of sidewall portion
8A engaging protuberances
8B engaging recessed parts
10 twisted wire wedges
The interior side edge part in 11 low-angle dip faces
The interior side edge part in 12 high-dipping faces
The end face 30L, 30R
31L, 31R low-angle dip face
The high-dipping face 32L, 32R
The gaps G
Claims (10)
1. a kind of twisted wire wedge, which is characterized in that
Have multiple segmentation wedges with crooked inner surface, the segmentation wedge gradually increases wall thickness from front end terminad portion
And formed, the segmentation wedge is covered in the peripheral surface of twisted wire to surround the peripheral surface of the twisted wire in specific length,
The gap ensured between the multiple segmentation wedge end face opposed when being configured at the peripheral surface of the twisted wire has paddy
Portion follows gap portion, and the valley follows valley of the gap portion along the twisted wire surrounded by the segmentation wedge.
2. twisted wire wedge according to claim 1, which is characterized in that
The gap ensured between the opposed end face includes to follow gap portion and not along the valley of the valley of the twisted wire
Follow gap portion along the valley of the valley of the twisted wire is non-, the valley follow gap portion by the valley is non-follow between
Gap is partially sandwiched in centre, and is formed in the longitudinal direction multiple.
3. twisted wire wedge according to claim 2, which is characterized in that
The length length for following gap portion more non-than the valley that the valley follows gap portion is long.
4. twisted wire wedge according to claim 2, which is characterized in that
The valley follows direction and range of the non-direction for following gap portion of the valley at 75 °~120 ° of gap portion
Interior intersection.
5. twisted wire wedge according to any one of claims 1 to 4, which is characterized in that
Multiple slots are formed in the crooked inner surface, the slot is formed along the plain line for constituting the twisted wire, and the slot
It is sized for constituting the diameter of the plain line of the twisted wire.
6. twisted wire wedge according to any one of claims 1 to 5, which is characterized in that
The holding section for being useful for carrying out position alignment is respectively formed on multiple segmentation wedges.
7. a kind of twisted wire wedge, which is characterized in that gradually increase wall thickness from front end terminad portion and formed, have and contacted with twisted wire
Crooked inner surface, separate be arranged in around twisted wire in the state of gap in the longitudinal direction, thus surrounded in specific length
The peripheral surface of the twisted wire,
The end face of the side of sidewall portion for the both sides for forming gap, the twisted wire wedge crooked inner surface and with the hank
The end face of the side of sidewall portion of the both sides of the crooked inner surface of the adjacent another twisted wire wedge of line wedge, is formed with along the strand surrounded
The inclination of the valley of line.
8. twisted wire wedge according to claim 7, which is characterized in that
The end face of the both sides wall portion includes along the low-angle dip face of the valley of the twisted wire and not along the valley of the twisted wire
High-dipping face, the high-dipping face is clipped in the middle and is formed in the longitudinal direction multiple by the low-angle dip face.
9. twisted wire wedge according to claim 8, which is characterized in that
The length in the low-angle dip face is longer than the length in the high-dipping face.
10. twisted wire wedge according to claim 8, which is characterized in that
The direction in the low-angle dip face intersects with the direction in the high-dipping face in the range of 75 °~120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149607.XA CN108571566A (en) | 2017-03-14 | 2017-03-14 | Twisted wire wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149607.XA CN108571566A (en) | 2017-03-14 | 2017-03-14 | Twisted wire wedge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571566A true CN108571566A (en) | 2018-09-25 |
Family
ID=63578314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710149607.XA Pending CN108571566A (en) | 2017-03-14 | 2017-03-14 | Twisted wire wedge |
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|---|---|
| CN (1) | CN108571566A (en) |
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| WO2016132657A1 (en) * | 2015-02-16 | 2016-08-25 | 東京製綱株式会社 | Terminal affixing structure for composite striated bodies |
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| DE3225723A1 (en) * | 1982-07-09 | 1984-01-12 | Ed. Züblin AG, 7000 Stuttgart | Frustoconical wedge comprising three segments for prestressing cables |
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| JPH055288A (en) * | 1990-12-27 | 1993-01-14 | Tokyo Seiko Co Ltd | Steel cord |
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Application publication date: 20180925 |