CN101982251A - Multidirectional load bearing prestressed wire winding pre-tightening frame - Google Patents
Multidirectional load bearing prestressed wire winding pre-tightening frame Download PDFInfo
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- CN101982251A CN101982251A CN 201010276659 CN201010276659A CN101982251A CN 101982251 A CN101982251 A CN 101982251A CN 201010276659 CN201010276659 CN 201010276659 CN 201010276659 A CN201010276659 A CN 201010276659A CN 101982251 A CN101982251 A CN 101982251A
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- 238000004804 winding Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005242 forging Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/042—Prestressed frames
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
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Abstract
The invention relates to a multidirectional load bearing prestressed wire winding pre-tightening frame, belonging to the technical field of heavy type pressure processing equipment. The pre-tightening frame at least comprises three arc beams which are the same in pressing counter force quantity and are in opposite directions as well as at least three straight beams, the arc beams and the straight beams are arranged alternately, the outline of the straight beam is tangent with the outer arc outline of two adjacent arc beams, so as to form a frame, and the periphery outline of the frame is wound with prestressed wire. In the invention, structure composed of arc beam and straight beam is reasonably arranged on the periphery outline of the load bearing frame, so that prestressed wire is wound and pre-tightening forces in multiple directions are produced, so as to balance multidirectional pressing counter force, thus the frame can bear multidirectional loads without a tensioning construction member provided with through structure, thereby avoiding structural interference problem.
Description
Technical field
The invention belongs to employed bearing structure in the heavy pressworking equipment field, particularly a kind of compressor wire that can bear multidirectional load twines frame.
Background technology
Indication of the present invention can bear the frame of multidirectional load, be heavy pressworking equipment, refer in particular to by more than 2 directions simultaneously or substep workpiece is applied the equipment of press power.
Pressworking equipment acts on workpiece with certain press power or mould is finished processing, as various forging equipments, pressing equipment, rolling equipment and die casting equipment etc.The wirking pressure process equipment have two be parallel to each other, press power that direction is opposite acts on simultaneously, (as: with hydraulic jack, toggle or forging hammer strike etc.) that one of them normally initiatively applies, and another counter-force of the passive generation of workbench (initiatively apply but also have, as counter-blow hammer etc.) normally.These two power are active force and reaction force each other, and by the mutual balance (but the strike counter-force of flat-die hammer is to be delivered on the ground by frame) of bearing structure (frame).
Some processing technology requires the compacting of two above directions in addition, as radial forging, the forging of multi-ram forging peace etc., these press powers also need by bearing structure (frame) balance, when particularly press power is big, more need heavy framework for support to come balance, and the reaction force of press power is limited in inside configuration, do not affact surrounding environment (as ground).
The structure of bearing multidirectional load has two kinds of principal modes usually: a kind of is the effect that single bearing structure bears multidirectional load simultaneously, structure can be non-pretension, it also can be pretension, but pretightning force is only in a pair of main direction, and other direction does not have pretightning force, and this structure is when multidirectional load synergy, the stress that each load produces on bearing structure will superpose, cause the local stress of structure to increase sharply, so claimed structure has very big bearing capacity, otherwise destroy easily.For large-scale, heavy multidirectional pressworking equipment, as multi-ram forging hydraulic press, radial forging etc., its design and manufacture difficulty are bigger.
Another kind is to have several absolute construction (frame) to carry the opposite compacting counter-force of a pair of direction respectively, for example: for the multi-ram forging hydraulic press, a Vertical Rack bears a pair of compacting counter-force of vertical direction, and another horizontal type level frame is born a pair of compacting counter-force of horizontal direction.Be independent of each other when two of vertical direction and horizontal direction frames are carried like this, do not have stress stack problem, can manufacture and design according to the requirement of common frame.But the structure of these independent rack will converge and run through machining area, and structure be very easy to be interfered in limited space, or surround around, structure increases; Or staggered running through, weaken mutually.Therefore, no matter the design of large-scale multidirectional press device and manufacturing are to adopt single bearing structure or adopt several independent bearing structures, and design and manufacture difficulty are all very big.
The thinking that solves this engineering roadblock is to avoid under the prerequisite of constructive interference, apply and the corresponding multidirectional pretightning force of multidirectional load, by changing the stress of structure, the harmful effect that the stress stack that elimination load produces causes structure, the bearing capacity of raising single structure.But produce multidirectional pretightning force for avoiding constructive interference occurring or weaken phenomenon, can not adopt to run through method mutually.
Common compressor wire twine frame only bear two be parallel to each other, load that direction is opposite, the circular arc of its outline concentrates on the lower and upper cross-member, and the column outline is the straight line that is parallel to loading direction.Most typical lower and upper cross-member structure is semicircle ellbeam, arched girder or inner concave beam etc., and the outline of beam all is 180 ° a semicircle; And some deformed beam, as triangular beam etc., the profile of beam by two sections or three sections circular arcs and between rectilinear(-al), the circular arc radian sum that steel wire is walked around on each crossbeam is 180 °, its pretightning force equals two times steel wire tension after each arc section integration adds up.Above-mentioned feature shows that the pretightning force that common compressor wire twines frame all concentrates on the lower and upper cross-member, is parallel to a pair of compacting counter-force of column direction with balance, and does not possess the pretightning force that produces on a plurality of directions, the feature of the multidirectional compacting counter-force of balance.
Need to prove, the outline of the lower and upper cross-member of some compressor wire winding frame is made up of multi-section circular arc or elliptic arc, because the total angle that steel wire is walked around is 180 °, the pretightning force that steel wire produces also equals 2 times steel wire tension, do not possess the pretightning force that produces on a plurality of directions equally, the feature of the multidirectional compacting counter-force of balance.
Also the column outline of some compressor wire winding frame is made up of one section radius circular arc big, that central angle is very little, its objective is that the steel wire that makes pillar segment possesses a very little lateral pressure, reverses to prevent steel wire, guarantees the steel wire marshalling.This frame is because the circular arc radian of pillar segment is less, and circular arc is distributed on the whole column, and steel wire is little and disperse to the pressure of profile, does not therefore also possess on a plurality of directions of generation, the pretightning force of mutually perpendicular direction particularly is with the feature of balance compacting counter-force.
Summary of the invention
The purpose of this invention is to provide a kind of compressor wire that can bear multidirectional load and twine frame, make it can produce pretightning force on a plurality of directions, to have the characteristics of the multidirectional compacting counter-force of balance.
Above-mentioned purpose of the present invention is achieved by the following technical solution:
A kind of compressor wire that bears multidirectional load provided by the invention twines preloaded housing, it is characterized in that: the circumferential profile that described compressor wire twines multidirectional preloaded housing comprise at least three sections equate with compacting counter-force quantity, relative arc beams and at least three sections straight section beams of direction, the alternate layout of described arc beams with the straight section beam, and the external arc profile of the outline of described straight section beam and adjacent two arc beams is tangent, form frame, and on the circumferential profile of described frame, twine compressor wire.
In the technique scheme, its feature also is: the interior profile of described straight section beam contain at least one section with the compacting counter-force the parallel straightway of the direction of motion.
The compressor wire that another kind provided by the invention bears multidirectional load twines preloaded housing, it is characterized in that: the circumferential profile that described compressor wire twines multidirectional preloaded housing comprise four sections equate with compacting counter-force quantity, relative arc beams and the four sections straight section beams of direction, these four arc beams adopt offset orthogonal to arrange, the circular arc symmetry axis that is adjacent arc beams is vertical mutually, and the circular arc symmetry axis of relative arc beams overlaps and central angle equates; The alternate layout of described arc beams with the straight section beam, and the external arc profile of the outline of described straight section beam and adjacent two arc beams is tangent, forms frame, and twine compressor wire on the circumferential profile of described frame; The pretightning force that the sine of each arc beams center of circle half-angle and steel wire produce on arc beams is proportional.
Technical characterictic of the present invention also is: independent when processing the composition preloaded housing when adopting arc beams and straight section beam separate, the arc radius of the arc beams by the point of contact is as the boundary line of cutting apart of arc beams and straight section beam.
The present invention compared with prior art, have the following advantages and the high-lighting effect: the present invention is by reasonably being provided with the structure of arc beams and linear beam combination on the preloaded housing circumferential profile, make compressor wire twine the pretightning force that produces on a plurality of directions, with the multidirectional compacting counter-force of balance, make frame can bear multidirectional load and do not need the strain component that runs through structure, thereby avoided the structure interference problem.
Can produce the pretightning force on a plurality of directions, thereby have the characteristics of the multidirectional compacting counter-force of balance.Steel wire does not change direction at the straight line portion of outline, profile is not produced pressure, does not produce pretightning force; And at the circular arc portion of outline, steel wire has changed direction, will produce surface pressure to profile, and the size and the steel wire tension of surface pressure are proportional, are inverse ratio with arc radius.This surface pressure along the arc section integration to make a concerted effort be exactly that steel wire is wrapped in the pretightning force that this section circular arc produces, direction then is parallel to the symmetry axis (being the angular bisector of this section circular arc central angle) of this section circular arc.Like this as long as arc profile and outline of straight line are set at ad-hoc location, pretightning force size and the multidirectional pre-pressing structure of azimuth design that just can be as required, improve structure and born the ability of multidirectional compacting load, and do not needed to run through the strain component of structure, avoided the structure interference problem.
Description of drawings
Fig. 1 twines the structural representation of preloaded housing for a kind of compressor wire that can bear four direction load provided by the invention.
Fig. 2 twines the structural representation of preloaded housing for a kind of compressor wire that can bear three direction load provided by the invention.
Fig. 3 twines the structural representation of preloaded housing for a kind of compressor wire that can bear five direction load provided by the invention.
Fig. 4 twines the structural representation of preloaded housing for a kind of compressor wire that can bear offset orthogonal load provided by the invention.
Among the figure: the 1-arc beams; 2-straight section beam; The 3-compressor wire; The 4-straightway; 5-crosses the arc radius at point of contact; The last arc beams of 6-; 7-left side arc beams; Arc beams under the 8-; The right arc beams of 9-; The 10-horizontal axis; The 11-vertical axis.
The specific embodiment
A kind of compressor wire that bears multidirectional load provided by the invention twines preloaded housing, its circumferential profile comprise at least three sections equate with compacting counter-force quantity, relative arc beams 1 and at least three sections straight section beams 2 of direction, the external arc profile of the outline of straight section beam and adjacent two arc beams is tangent, the alternate layout of described arc beams with the straight section beam, form frame, and on the circumferential profile of described frame, twine compressor wire 3.Promptly the counter-force direction at each press power is provided with one section arc beams, and the radian of arc beams can big or small or corresponding press power and the pretension coefficient magnitude of pretightning force as requested be determined.The radian sum of all circular arcs should equal 360 ° or 2 π.
And contain at least on the interior profile of straight section beam one section with the compacting counter-force the parallel straightway of the direction of motion, as the guiding or the support guide structure.
According to the processing and manufacturing ability, this preloaded housing can be that whole continuous material processes, and also can be that the polylith combination of materials forms.Independent when processing the composition preloaded housing when adopting arc beams and straight section beam separate, the arc radius of the arc beams by the point of contact is as the boundary line of cutting apart of arc beams and straight section beam.Make pretension shearing force minimum on the faying face between each beam like this, the processing of arc beams and straight section beam is all than being easier to simultaneously.
Below by several specific embodiments principle of the present invention and structure are described further.
Fig. 1 twines the structural representation of preloaded housing for a kind of compressor wire that can bear four direction load provided by the invention, the circumferential profile that this compressor wire twines multidirectional preloaded housing comprises that four equate with compacting counter-force quantity, the arc beams 1 that direction is relative, be that the straight section beam 2 of straight line connects by outline between two arc beams, the external arc profile of the outline of described straight section beam and adjacent two arc beams is tangent, promptly by four arcs beam 1 and four sections straight section beam 2 alternate combining, their faying face is by the arc radius 5 through the point of contact, form frame, and on the circumferential profile of frame, twine compressor wire 3, and the interior profile of straight section beam contain one section with the compacting counter-force the parallel straightway 4 of the direction of motion, as the guiding or the support guide structure.
For structure shown in Figure 1, four pretightning force directions that produced are passed through the center of circle of four arcs respectively, and the symmetry axis (being the angular bisector of this section circular arc central angle) of section circular arc overlaps therewith, i.e. P among Fig. 1
C1, P
C2, P
C3, P
C4Twine principle according to prestressing force, the pretightning force size P that winding steel wire produces at arc section
CiWith this section circular arc radian α
iThe pass be:
Wherein T is total tension force of steel wire floor.And pretightning force P
CiWith corresponding compacting counter-force F
iThe pass be: P
Ci=η
iF
i, η wherein
iIt is the pretension coefficient of i direction.Then have:
Because of the total tension force of steel wire floor equates on whole profile, so have:
In addition, establish the angle theta of adjacent two pretightning forces (or compacting counter-force) direction
I, i+1Radian α with adjacent two sections circular arcs
iAnd α
I+1Following relation is arranged:
Just can calculate the central angle of each arc section and total tension force of winding steel wire layer according to formula (1), (2) and (3) like this by known multidirectional compacting counter-force size, direction and the pretension coefficient that needs.
Shown in Figure 2 is the structural representation that can bear the compressor wire winding preloaded housing of three direction compacting counter-forces, and compressor wire 3 is wrapped on three sections arc beams 1, produces the pretightning force of three directions respectively, that is: P
C1, P
C2, P
C3Its structure is that their faying face is by the arc radius 5 through the point of contact by three sections arc beams 1 and three sections straight section beam 2 alternate combining.The interior profile of straight section beam has at least a straightway 4 parallel with the direction of motion of compacting counter-force, as the guiding or the support guide structure of compacting motion.The radian of its each section circular arc and steel wire tension can be by formula (1), (2) and (3), and the pretension coefficient calculations of suppressing size, direction and the needs of counter-force according to known three-dimensional obtains.
Shown in Figure 3 is the structural representation that can bear the compressor wire winding preloaded housing of five direction compacting counter-forces, and compressor wire 3 is wrapped on five sections arc beams 1, produces five direction pretightning forces, that is: P respectively
C1, P
C2, P
C3, P
C4, P
C5Its architectural feature is that their faying face is by the arc radius 5 through the point of contact by five sections arc beams 1 and five sections straight section beam 2 alternate combining.The interior profile of straight section beam has the direction of motion parallel (among Fig. 3 4) of a straightway and compacting counter-force at least, as compacting motion guide or support guide structure.The radian of its each section circular arc and steel wire tension can be gone out to obtain according to the five known pretension coefficient calculations to size, direction and the needs of suppressing counter-force by formula (1), (2) and (3).
Fig. 4 twines the structural representation of preloaded housing for a kind of compressor wire that can bear offset orthogonal load provided by the invention, the circumferential profile of this preloaded housing comprises four sections equal with compacting counter-force quantity, that direction is relative arc beams (comprising arc beams 6, left arc beams 7, following arc beams 8 and right arc beams 9) and four sections straight section beams 2, these four arc beams adopt offset orthogonal to arrange, the circular arc symmetry axis that is adjacent arc beams is vertical mutually, and the circular arc symmetry axis of relative arc beams overlaps and central angle equates; The alternate layout of described arc beams with the straight section beam, and the external arc profile of the outline of described straight section beam and adjacent two arc beams is tangent, forms frame, and on the circumferential profile of described frame, twine compressor wire 3; The pretightning force that the sine of each arc beams center of circle half-angle and steel wire produce on arc beams is proportional.This embodiment can bear compressor wire vertical and four non-centrosymmetry direction compactings of level counter-force simultaneously and twine preloaded housing, is characterized in wherein a pair of compacting counter-force (level compacting counter-force: F
2And F
4) and pretightning force (P
C2And P
C4) axis (level compacting axis 10) perpendicular to another compacting counter-force (is vertically suppressed counter-force: F
1And F
3) and pretightning force (P
C1And P
C3) axis (vertical axis 11), and near one of them (F
3).For guaranteeing prestressed balance, that the central angle of the arc beams that direction is relative still keeps is equal (that is: α
1=α
3, α
2=α
4), and the arc radius of arc beams is bigger near following arc beams 8 arc radius of horizontal axis 10 owing to the compacting axis bias, and less away from last arc beams 6 arc radius of horizontal axis 10; All equate with the central angle and the radius of vertical axis 11 equidistant left arc beams 7 and right arc beams 9 simultaneously.Straight section beam 2 length that are connected with last arc beams 6 are longer, and the straight section beam length that is connected with following arc beams 8 is shorter.The circular arc symmetry axis of last arc beams 6 and following arc beams 8 overlaps with vertical compacting axis 11, and the circular arc symmetry axis of left arc beams 7 and right arc beams 9 and level compacting axis 10 overlaps, and vertical with vertical compacting axis 11.That is:
Then, just can calculate the radian of each circular arc according to known vertical direction and the ratio of horizontal direction compacting counter-force and the ratio of vertical direction and horizontal direction pretension coefficient.
Claims (4)
1. a compressor wire that bears multidirectional load twines preloaded housing, it is characterized in that: the circumferential profile that described compressor wire twines multidirectional preloaded housing comprise at least three sections equate with compacting counter-force quantity, relative arc beams (1) and at least three sections straight section beams (2) of direction, the alternate layout of described arc beams with the straight section beam, and the external arc profile of the outline of described straight section beam and adjacent two arc beams is tangent, form frame, and on the circumferential profile of described frame, twine compressor wire (3).
2. twine preloaded housing according to the described a kind of compressor wire that bears multidirectional load of claim 1, it is characterized in that: the interior profile of straight section beam contain at least one section with the parallel straightway of the direction of motion of suppressing counter-force.
3. a compressor wire that bears multidirectional load twines preloaded housing, it is characterized in that: the circumferential profile that described compressor wire twines multidirectional preloaded housing comprise four sections equate with compacting counter-force quantity, relative arc beams (1) and the four sections straight section beams (2) of direction, these four arc beams adopt offset orthogonal to arrange, the circular arc symmetry axis that is adjacent arc beams is vertical mutually, and the circular arc symmetry axis of relative arc beams overlaps and central angle equates; The alternate layout of described arc beams with the straight section beam, and the external arc profile of the outline of described straight section beam and adjacent two arc beams is tangent, forms frame, and twine compressor wire (3) on the circumferential profile of described frame; The pretightning force that the sine of each arc beams center of circle half-angle and steel wire produce on arc beams is proportional.
4. twine preloaded housing according to claim 1 or 3 described a kind of compressor wires that bear multidirectional load, it is characterized in that: independent when processing the composition preloaded housing when adopting arc beams and straight section beam separate, the arc radius of the arc beams by the point of contact is as the boundary line of cutting apart of arc beams and straight section beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276659 CN101982251B (en) | 2010-09-09 | 2010-09-09 | Multidirectional load bearing prestressed wire winding pre-tightening frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010276659 CN101982251B (en) | 2010-09-09 | 2010-09-09 | Multidirectional load bearing prestressed wire winding pre-tightening frame |
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| Publication Number | Publication Date |
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| CN101982251A true CN101982251A (en) | 2011-03-02 |
| CN101982251B CN101982251B (en) | 2013-01-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794380A (en) * | 2012-02-29 | 2012-11-28 | 张家港市九鼎机械有限公司 | Block type multidirectional forging device |
| WO2013023888A1 (en) * | 2011-08-16 | 2013-02-21 | Langenstein & Schemann Gmbh | Machine base, method for operating a forming machine and forming system |
| CN103418729A (en) * | 2012-05-21 | 2013-12-04 | 昆山永年先进制造技术有限公司 | Multidirectional bearing rack system |
| CN103507291A (en) * | 2012-06-20 | 2014-01-15 | 昆山永年先进制造技术有限公司 | Multiple-segment girder |
| CN104339702A (en) * | 2014-10-13 | 2015-02-11 | 中国工程物理研究院化工材料研究所 | Design system of prestressed wire winding type isostatic-pressing stander and method of design system |
| CN106393787A (en) * | 2016-08-24 | 2017-02-15 | 德阳万达重型机械设备制造有限公司 | Producing and machining technique for working cylinder rack of high-strength isostatic press |
| DE102016102275A1 (en) * | 2016-02-10 | 2017-08-10 | Uniflex-Hydraulik Gmbh | radial press |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103732387B (en) * | 2011-08-16 | 2015-10-21 | 朗根施泰因及舍曼有限公司 | Machinery bed, for operating method and the formation system of forming machine |
| WO2013023888A1 (en) * | 2011-08-16 | 2013-02-21 | Langenstein & Schemann Gmbh | Machine base, method for operating a forming machine and forming system |
| JP2016120527A (en) * | 2011-08-16 | 2016-07-07 | ランゲンスタイン アンド シェーマン ゲーエムベーハーＬａｎｇｅｎｓｔｅｉｎ ＆ Ｓｃｈｅｍａｎｎ ＧｍｂＨ | Machine bed, operation method for molding machine, and molding device |
| CN103732387A (en) * | 2011-08-16 | 2014-04-16 | 朗根施泰因及舍曼有限公司 | Machine base, method for operating a forming machine and forming system |
| US9180642B2 (en) | 2011-08-16 | 2015-11-10 | Langenstein & Schemann Gmbh | Machine bed, method for the operation of a forming machine and forming installation |
| CN102794380B (en) * | 2012-02-29 | 2013-07-24 | 张家港市九鼎机械有限公司 | Block type multidirectional forging device |
| CN102794380A (en) * | 2012-02-29 | 2012-11-28 | 张家港市九鼎机械有限公司 | Block type multidirectional forging device |
| CN103418729B (en) * | 2012-05-21 | 2016-05-11 | 昆山永年先进制造技术有限公司 | A kind of multidirectional framework for support system |
| CN103418729A (en) * | 2012-05-21 | 2013-12-04 | 昆山永年先进制造技术有限公司 | Multidirectional bearing rack system |
| CN103507291A (en) * | 2012-06-20 | 2014-01-15 | 昆山永年先进制造技术有限公司 | Multiple-segment girder |
| CN104339702A (en) * | 2014-10-13 | 2015-02-11 | 中国工程物理研究院化工材料研究所 | Design system of prestressed wire winding type isostatic-pressing stander and method of design system |
| DE102016102275A1 (en) * | 2016-02-10 | 2017-08-10 | Uniflex-Hydraulik Gmbh | radial press |
| CN106393787A (en) * | 2016-08-24 | 2017-02-15 | 德阳万达重型机械设备制造有限公司 | Producing and machining technique for working cylinder rack of high-strength isostatic press |
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| Publication number | Publication date |
|---|---|
| CN101982251B (en) | 2013-01-16 |
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