CN104085128B - Combined bidirectional prestressing force framework for support - Google Patents
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- B30—PRESSES
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- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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Abstract
Combined bidirectional prestressing force framework for support of the present invention comprises a kind of novel vertical pillars beam and equicohesive horizontal entablature and horizontal sill, by prestressed draw-bar device, its pretension in vertical and horizontal both direction is become a combined bidirectional prestressing force framework for support.Be provided with vertical operation cylinder in horizontal entablature and horizontal sill, and allow the service load bearing vertical direction.Every root vertical pillars beam comprises two equicohesive vertical beams, by a horizontal bush transverse splicing between two vertical beams, in order to install with the horizontal operation cylinder of cylinder bottom support, and allows the service load bearing horizontal direction.By horizontal entablature, column that horizontal sill is vertical with left and right are closely consolidated into an entirety, form the two-way full prestressing framework for support of a vertical and horizontal direction stress balance, thus make whole frame have higher integral rigidity, fatigue resistance and reliability, huge service load can be born in vertical and horizontal direction.
Description
Technical field
The present invention relates to a kind of combined bearing frame, particularly relate to a kind of combined bidirectional prestressing force framework for support.
Background technology
Framework for support is the most important components of hydraulic press body, and therefore framework for support must have enough strength and stiffness, with the performance requirement of satisfied different manufacturing process and economy.But in hydraulic press technical field, the structural design of the framework for support of existing hydraulic press does not still have important breakthrough, shape duplicates, function singleness, degraded performance, the range limited system of process application.Such as: the vertical framework for support of traditional " three beam four posts " hydraulic press, the service load of vertical direction can only be born, depending on different application scenarios, for the vertical form technique such as forging, extruding, punching press, compacting of material; The horizontal framework for support of traditional " three beam four posts " hydraulic press, can only bear the service load of horizontal direction, be mainly used in the horizontal type extruding technique of material; The framework for support of traditional multi-ram forging hydraulic press, also just simply a Vertical Rack and a horizontal framework are bolted together, for multi-ram forging forming technology, but because two frames are independent separately, vertical and horizontal service load power external force each other, power system can not be balanced in combined rack, easily causes that horizontal force is unbalance, component frequent breakage; Traditional overall stacked plate type and integral frame-type framework for support, although its vertical and horizontal service load power becomes internal force, the same with the frame that two are bolted together, limit by structure, the horizontal operation load that it can bear is very little.Therefore the framework for support of above-mentioned hydraulic press, can not meet the disposable precise extrusion molding requirement of the complex product of multidirectional, special-shaped, cavity type, the operation passage of needs is many, stock utilization is low, and machining amount is large, and metal streamline is cut off, cause stress to concentrate, production efficiency is low, and energy consumption is high.
Therefore, need a kind of new framework for support to solve the problem.
Summary of the invention
Goal of the invention: the defect that the present invention be directed to framework for support in prior art, provides a kind of combined bidirectional prestressing force framework for support.
Technical scheme:
A kind of combined bidirectional prestressing force framework for support, comprise the identical and symmetrical vertical pillars beam of two size structures and be retained on the top of described vertical pillars beam and the horizontal entablature of bottom and horizontal sill respectively, and vertical prestressed draw-bar device, described vertical pillars beam comprises two beam of uniform strengths and sleeve, two described beam of uniform strengths are by described sleeve transverse splicing, the cross section of the described beam of uniform strength is rectangle, and be plane inside it, outside has protuberance; The cross-sectional area of the part that the described beam of uniform strength is positioned at above described protuberance from up to down increases gradually, the cross-sectional area of the part that the described beam of uniform strength is positioned at below described protuberance from up to down reduces gradually, described sleeve and axis thereof are in horizontal direction between two beam of uniform strengths, described horizontal entablature, vertical pillars beam are integral by described vertical prestressed draw-bar device pretension with horizontal sill
Described horizontal entablature and horizontal sill are the convex beam of uniform strength, the bossy body of described horizontal entablature and the bossy body of described horizontal sill are oppositely arranged, the top of two convex shoulder planes of described horizontal entablature vertical pillars beam described with two respectively connects, the bottom of two convex shoulder planes of described horizontal sill vertical pillars beam described with two respectively connects, the inside top face of two sides of the bossy body of described horizontal entablature vertical pillars beam described with two respectively contacts, the bottom inside face of two sides of the bossy body of described horizontal sill vertical pillars beam described with two respectively contacts,
Also comprise the horizontal prestressed draw-bar device of bottom level prestressed draw-bar device and top, it is integral that the bottom of two described vertical pillars beams and the bossy body of described horizontal sill pass through described bottom level prestressed draw-bar device pretension, and it is integral that the top of two described vertical pillars beams and the bossy body of described horizontal entablature pass through described top horizontal prestressed draw-bar device pretension.
Further, the described beam of uniform strength is hollow beam.
Further, top and the convex shoulder plane of described horizontal entablature of described vertical pillars beam are that key is connected, and bottom and the convex shoulder plane of described horizontal sill of described vertical pillars beam are that key is connected.
Further, described vertical ties device comprises many thin pull bars, and the diameter of described thin pull bar is 160 ~ 280mm.The present invention has abandoned the traditional design method of the single rough bar of employing, be not only the needs for compact structure design, but the performance of many thin pull bars is much larger than only using a rough bar, available less hydraulic pre-tightening cylinder, respectively the every root pull bar of pretension.
Further, described first girt device and the second girt device include many thin pull bars, and the diameter of described thin pull bar is 160 ~ 280mm.The present invention has abandoned the traditional design method of the single rough bar of employing, be not only the needs for compact structure design, but the performance of many thin pull bars is much larger than only using a rough bar, available less hydraulic pre-tightening cylinder, respectively the every root pull bar of pretension.
Further, the cross section of described sleeve is circular or rectangle.
Further, shoulder hole is provided with in described sleeve.
Beneficial effect: combined bidirectional prestressing force framework for support of the present invention comprises a kind of novel vertical pillars beam and equicohesive horizontal entablature and horizontal sill, by prestressed draw-bar device, its pretension in vertical and horizontal both direction is become a combined bidirectional prestressing force framework for support.Be provided with vertical operation cylinder in horizontal entablature and horizontal sill, and allow the service load bearing vertical direction.Every root vertical pillars beam comprises two equicohesive vertical beams, by a horizontal bush transverse splicing between two vertical beams, in order to install with the horizontal operation cylinder of cylinder bottom support, and allows the service load bearing horizontal direction.
Accompanying drawing explanation
Fig. 1 is the top view of combined bearing frame;
Fig. 2 is that the A-A of combined bearing frame is to sectional view;
Fig. 3 is the side view of vertical pillars beam;
Fig. 4 is the top view of vertical pillars beam;
Fig. 5 is the top view of horizontal entablature;
Fig. 6 is the top view of horizontal sill;
Fig. 7 is the side view of guidance system;
Fig. 8 is the top view of guide way;
Fig. 9 is the structural representation of multidirectional mould Compound Extrusion hydraulic press.
Detailed description of the invention
Refer to shown in Fig. 1 and Fig. 2, combined bidirectional prestressing force framework for support of the present invention, comprise horizontal sill 1, two vertical pillars beams 2; 4, horizontal entablature 6, vertical prestressed draw-bar device 71, the horizontal prestressed draw-bar device 73 of bottom level prestressed draw-bar device 72 and top.
1), the crossbeam of existing hydraulic press the jowar such as to be generally, and namely the height dimension of arbitrary vertical cross-section of beam is equal.The loading end of entablature, the plane namely for column supporting and installment work cylinder is in same plane, the loading end of sill, and the plane namely for column supporting and erector's station is also in same plane.The non-bearing face of some non-contour entablature all raises up, and the non-bearing face of non-contour sill is protruded all downwards.The function singleness of these beams, equal in the upper size of short transverse, but the stress distribution of beam is very unbalanced, and the potential of material is not not fully exerted.
Refer to shown in Fig. 5 and Fig. 6, the crossbeam of hydraulic press of the present invention is the convex beam of uniform strength, is different from the structure of the beam of existing any one hydraulic press.The horizontal entablature of " convex " type 6 is exactly contrary with traditional concept with " convex " type horizontal sill 1, beam is unequal in the upper size of short transverse, the load plane of beam is not all in same plane, but the stress distribution of beam is balanced, and the potential of material is not fully exerted; The loading end of horizontal entablature 6 installment work cylinder is protruded downwards, makes the loading end of horizontal sill 1 erector station protruding upward.What the distance between two horizontal planes of the bossy body of horizontal entablature 6 and horizontal sill 1 constituted framework window vertically opens a grade H, two vertical planes of bossy body determine the horizontal inner side headroom of framework window apart from W, and the material between two vertical planes plays a part again upper and lower horizontal column.
" convex " type beam of uniform strength structure of the horizontal sill of the present invention 1 for raising up, the upper plane of bossy body is used for erector's station, and two convex shoulder planes are for supporting two vertical pillars beams 2; 4, these two planes are not in same plane.The both sides vertical plane of bossy body is two vertical pillars beams 2; Medial surface bottom 4 provides " X " axle positioning datum of horizontal direction, and makes bossy body as lower horizontal column, bears bottom level prestressed draw-bar device 72 by two vertical pillars beams 2; The prestressing force effect of the bottom of 4 and the bossy body pretension all-in-one-piece horizontal direction of horizontal sill 1; Two convex shoulder planes be designed with two groups of rectangle keyways and be inlaid with positioning key, can be two vertical pillars beams 2; The bottom of 4 provides " Y " axle positioning datum in anterior-posterior horizontal direction; Two convex shoulder planes are two vertical pillars beams 2; The bottom of 4 provides " Z " axle positioning datum of vertical direction, and bears vertical prestressed draw-bar device 71 by two vertical pillars beams 2; 4 with the prestressing force effect of horizontal entablature 6 and horizontal sill 1 pretension all-in-one-piece vertical direction; Ejecting force needed for different process object, lower piercing force and hydraulic die cushion power, working cylinder under can installing in horizontal sill 1.
Horizontal entablature 6 is " convex " type girder construction protruded downwards, and the lower plane of bossy body is for installing Main cylinder, and two planes of falling convex shoulder are for supporting two vertical pillars beams 2; 4, these two planes are not in same plane.Two vertical planes of bossy body are two vertical pillars beams 2; The medial surface at 4 tops provides " X " axle positioning datum in left and right horizontal direction, and makes down bossy body as upper horizontal column, bears the horizontal prestressed draw-bar device 73 in top by two vertical pillars beams 2; The prestressing force effect of the pretension of the falling bossy body all-in-one-piece horizontal direction of 4 tops and horizontal entablature 6; Two planes of falling convex shoulder be designed with two groups of rectangle keyways and be inlaid with positioning key, can be two vertical pillars beams 2; The top of 4 provides " Y " axle positioning datum in anterior-posterior horizontal direction; Two planes of falling convex shoulder are two vertical pillars beams 2; The top of 4 provides " Z " axle positioning datum of vertical direction, and bears vertical prestressed draw-bar device 71 by two vertical pillars beams 2; 4 with the prestressing force effect of horizontal entablature 6 and horizontal sill 1 pretension all-in-one-piece vertical direction; Fall bossy body lower plane on Main cylinder is installed, according to different vertical nominal pressures and technique object, the quantity of cylinder is 1 ~ 6, and the arrangement of cylinder can be single 1,2,3, or is double 2,4,6, or be three row 3,5.
2), the column of existing hydraulic press is mostly independently 4 solid or hollow circles or rectangular configuration, or is multi-laminate plank frame, or is frame-type box structure.Their common trait is, use as just column function, be supported between lower and upper cross-member (for vertical hydraulic press) or front and back crossbeam (for horizontal hydraulic machine), bear compression (for prestressed structure) or tension (for non-prestressed structure), the service load of horizontal direction or transverse direction can not be born.The integral multi-layered stacked plate type had or integral slab frame hydraulic press, although allow the working cylinder at the horizontal direction mounting flange supporting type of column part, but due to the restriction by this type structure, the service load of the horizontal direction that can bear is only 1/5 of vertical direction.
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the vertical pillars beam 2 of special tectonic of the present invention; 4 structures being different from the column of existing any one hydraulic press.Two vertical pillars beams 2; 4, being seen as asymmetrical bow-shaped structural from front, is asymmetrical " H " type structure from the side.Concrete, vertical pillars beam 2; 4 comprise two beam of uniform strengths and sleeve, and two beam of uniform strengths are by sleeve transverse splicing, and the cross section of the beam of uniform strength is rectangle, and be plane inside it, outside has protuberance.The cross-sectional area of the part that the beam of uniform strength is positioned at above protuberance from up to down increases gradually, and the cross-sectional area of the part that the beam of uniform strength is positioned at below protuberance from up to down reduces gradually, and sleeve and axis thereof are in horizontal direction between two beam of uniform strengths.As vertical pillars function, it is the hollow rectangular cross section in middle part on overall height; By two vertical pillars beams 2; 4 bottoms and 4 tops of 4 are bearing between two convex shoulder planes of horizontal sill 1 and two convex shoulder planes of horizontal entablature 6, by vertical prestressed draw-bar device 71 by itself and horizontal entablature 6 and horizontal sill 1 pretension integral, bear the prestressing force effect of vertical direction, and angle moment of flexure under service load, its horizontal force action of moved cross beam counter-force couple under eccentric load; Two vertical pillars beams 2; The bottom of 4 and top level be all designed with two groups of rectangle keyways and be inlaid with positioning key, by horizontal entablature 6 and horizontal sill 1 and vertical pillars beam 2; 4 are embedded in together securely, and as " Y " axle positioning datum of upper and lower horizontal gird 6 and 1 in anterior-posterior horizontal direction.
As vertical beam function, two vertical pillars beams 2; 4 is hollow variable cross-section bow beam structure, fitted with two vertical planes of horizontal lower and upper cross-member 6 and 1 bossy body as horizontal column respectively, by bottom level prestressed draw-bar device 72 and 73 respectively by integral for the boss pretension of the end of vertical pillars beam and bottom and horizontal lower and upper cross-member 6 and 1 by 4 tops of two vertical pillars beams and the medial surface of 4 bottoms; Middle part between the vertical pillars beam of every side, by circular or rectangular cylinder 21 transverse splicing, in order to install with the horizontal operation cylinder of cylinder bottom support, and allows the service load bearing larger horizontal direction; According to different horizontal nominal pressures and technique object, the quantity of cylinder can be a single acting hydraulic cylinder, or a compound pair of hydrodynamic cylinder pressure, or the hydraulic cylinder that two rows are above.
3), the hydraulic press of conventional tension cylindricality formula, integral multi-layered stacked plate type or integral slab frame hydraulic press, their common trait is, frame is non-prestressed structure, and bear unidirectional amplitude alternate stress during work, fatigue resistance is low.Although some hydraulic presses have employed prestressed structure, mostly be the vertical hydraulic press of independent vertical direction, or the one direction prestressed structure of the horizontal hydraulic machine of horizontal direction; What have combines a vertical prestressed stand and a horizontal prestressed stand, constitutes multi-ram forging hydraulic press, but can not close due to its power system, causes frame and mould again and again to damage.And being subject to the restriction of this type structure, the service load of the horizontal direction that can bear is only 1/3 of vertical direction.
Refer to shown in Fig. 1 and Fig. 2, the two-way full prestressing system of vertical and horizontal of the present invention, is different from the prestressing force mode of existing any one hydraulic press.The two-way full prestressing system of vertical and horizontal, in vertical prestressed draw-bar device 71, the horizontal prestressed draw-bar device 73 of bottom level prestressed draw-bar device 72 and top, pull bar diameter is all between 160 ~ 280mm, according to pretightning force and the pre-tension method of design code, make pull bar total length produces prefastening force by pre-load nut, simultaneously to horizontal entablature 6, horizontal sill 1 and two vertical pillars beams 2; 4 apply preload pressures, thus by horizontal entablature 6 and horizontal sill 1 and two vertical pillars beams 2; 4 are closely consolidated into an entirety with horizontal direction respectively in the vertical direction, form a two-way full prestressing framework for support of vertical and horizontal.
The bearing capacity requirement of and horizontal direction vertical according to hydraulic press, determine quantity and the distribution of pull bar in vertical prestressed draw-bar device 71, the horizontal prestressed draw-bar device 73 of bottom level prestressed draw-bar device 72 and top, according to the plate thickness under the stress level determination pull-rod nut of each beam.
Pre-stress design presses maximum working load power and the maximum allowable offset prestressing force apart from design, adjustment and setting pull bar, and pretension coefficient is 1.5, and namely pretightning force is 1.5 times of service load; Horizontal entablature 6 and horizontal sill 1 and two vertical pillars beams 2; The cross sectional dimensions of 4 contact portions is identical, depth of beam direction by compression after distortion can not ignore, calculating should be comprised horizontal entablature 6, horizontal sill 1 and two vertical pillars beams 2 by the size of compression element; The corresponding height size of 4.
No matter whole frame is that vertical direction or the stressed of horizontal direction are internal force balance system, and load force can not be delivered on basis, ensure that the safety and reliability of the two-way carrying of frame.
The present invention has abandoned the traditional design method of the single rough bar of employing, be not only the needs for compact structure design, but the superiority of many thin pull bars is much larger than only using a rough bar: available less hydraulic pre-tightening cylinder, respectively the every root pull bar of pretension; By hollow column cross sectional shape, Duola's bar can be arranged symmetrically and evenly, stress equalization; Pull rod screw root mismachining tolerance is little, and the bending stress impact of generation is less; Because cross-sectional area is little, material structure and heat treatment performance uniformity good, the mechanical property of material can be given full play to; Processing and manufacturing and easy for installation.
4), blade fin face that the operation of conventional hydraulic machine moved cross beam all relies on column to provide leads, and so-called " X " spigot surface is in the same plane of identical angle, and moved cross beam guiding length is similar to its stroke.Under service load, due to the lateral bending deformation of column, be easy to guiding length is originally deflected with regard to very short moved cross beam, guiding accuracy can not be guaranteed.
Refer to shown in Fig. 7 and 8, two " X " type compound direction system of combined type of the present invention, is different from the guidance mode of existing any one hydraulic press, comprises the identical and guide way 51 of front and back symmetry of two size structures; 52 and moved cross beam 3.
The concrete structure of guide way is: guide way 51; The guiding side of 52 has projection, the top bilateral symmetry of projection is provided with two the first spigot surfaces, the bottom bilateral symmetry of projection is provided with two the second spigot surfaces, the extended line of the first spigot surface and the second spigot surface all by the center of combined bidirectional prestressing force framework for support, two guide waies 51; Prestressed draw-bar fixed connection is passed through in 52 upper ends, two guide waies 51; The bottom of 52 all by cross key and screw rod 82 fixedly connected with moved cross beam 3.
Two groups of upper level pull rod device 81 comprise high strength pull bar, by 2 guide waies 51; The two ends transverse prestress of 52 upper beam is consolidated into one; By horizontal screw bolt 82 and cross key by 2 guide waies 51; The lower vertical guide way of 52 and moved cross beam 3 are laterally consolidated into one.
Guide way 51; The upper beam guide plate of 52 relies on and is loaded on leading without the wear-resisting slide plate in deformed area I place on horizontal entablature 6, and middle and lower part vertically-guided plate relies on the wear-resisting slide plate guiding in the place of Light deformation district II be loaded on left and right vertical pillars beam 4 and 2; The extension line of top and bottom spigot surface all by the center of framework for support, same guide way 51; Angle α in 52 between two the first spigot surfaces is 60 °-100 °, simultaneously same guide way 51; Angle β in 52 between two the second spigot surfaces is 60 °-100 °, same guide way 51; Angle in 52 between two the first spigot surfaces is different from the angle between two the second spigot surfaces.Form two " X " type compound direction system; The length of guide way is 3 times of its stroke, that provide firm a, rigidity for moved cross beam with planar guide body that is LCS.
Combinations thereof formula two dimension prestressing framework for support, adopt Computerized three-dimensional finite element analysis software Analysis of Contact Problem method, design is optimized to frame overall structure, the distortion of frame and stress are obtained solve accurately, dope stress state and the deformation tendency thereof of the structure in the course of work, optimize the structure of stress frame, determine its physical dimension under suitable strength and rigidity, material is reasonably distributed, gives full play of the potentiality of material therefor.
Theory analysis shows, this rack construction has higher integral rigidity, fatigue resistance, bearing capacity and security reliability.After frame pretightening, do not crack, without the need to repeating fastening outboard nut, pull bar is forever without wearing and tearing.During work, column bears compression and bending stress, and pull bar bears tension, and the change amplitude of its minimum and maximum tension is only 15% of maximum load stress.Can not produce column fracture accident within the machine life cycle, therefore the service life of each component extend, and greatly reduces maintenance of equipment expense and life cycle cost.
5), the existing multi-ram forging hydraulic machine working cylinder number of axle is generally 3-5 axle, and its horizontal operation cylinder is single shaft, and ability is on the low side, and the product weight of shaping is little, can only carry out single horizontal parting and be shaped, limit the process application scope of multi-ram forging.
Refer to shown in Fig. 9, multidirectional mould Compound Extrusion hydraulic press of the present invention, is different from existing any one multi-ram forging hydraulic press.The described multidirectional mould Compound Extrusion working cylinder number of axle is 7 axles, combined bidirectional prestressing force framework for support and two " X " type compound direction frame of combined type are as the carrier installing the devices such as hydraulic cylinder, workbench, mould, and bear whole service load, namely form the body part of a multidirectional mould combined precision extrusion molding hydraulic press.
Multidirectional mould Compound Extrusion hydraulic press comprises combination type prestressed framework for support, two " X " type compound direction system of combined type, upper vertical Main cylinder 9, upper vertical perforation cylinder 10, left horizontal Main cylinder 121, right horizontal Main cylinder 122, left level perforation cylinder 131, right level perforation cylinder 132 and sagging straight perforation or liftout tank 16.
Using upper vertical Main cylinder 9 and mould 11, upper vertical perforation cylinder 10, left horizontal Main cylinder 121, the perforation of left level cylinder 131, right horizontal Main cylinder 122 and mould 14, the perforation of right level cylinder 132, sagging straight perforation or liftout tank 16 as independently numerical control hydraulic cylinder axle, driven by hydraulic numerical control device respectively, constitute hydraulic numerical control Close loop servo control and synchronous control system; Wherein, upper vertical Main cylinder 9 is arranged in horizontal entablature 6, and left horizontal Main cylinder 121 is arranged on a vertical pillars beam 2; In the sleeve of 4, right horizontal Main cylinder 122 is arranged on another vertical pillars beam 2; In the sleeve of 4, sagging straight perforation or liftout tank 16 are arranged in horizontal sill 1, upper vertical perforation cylinder 10 is arranged in vertical Main cylinder 9, and left level perforation cylinder 131 is arranged in left horizontal Main cylinder 121, and right level perforation cylinder 132 is arranged in right horizontal Main cylinder 122.Basis is loaded as with computer hydraulic numerical control multi-shaft linkage program, logical action is controlled by PLC system, the speed of each cylinder axle, displacement, pressure carry out programming Control by HNC, by the sequencing that main shaft Vertical loading, the loading of left trunnion axis, right trunnion axis load, more than 5 kinds load modes capable of being combined, by technique die joint condition, vertical parting and horizontal parting 2 kinds of mould-dividing modes can be completed.
Combine with the oil cylinder of other logic control, there is multidirectional loading, upper centre punching, lower centre punching, eject, stretch the steppings such as hydraulic die cushion and continuous feed function; Realize the multidirectional mould extruding of difficult formed product 15 of complex-shaped surface mould structure, die forging, isothermal die forging process, etc. drafts forge, etc. the various metals plasticity flexible compound near-net-shape techniques such as forging ratio forging, precision forging, superplasticforming.
6), embodiments of the invention are that develop the seven Shaft and NC Machining Test multidirectional mould combined precision extrusion molding hydraulic press that a total deformation ability is 350MN, its main power energy technical parameter is in table 1.
Table 1
| Axle | Working cylinder | Power (MN) | Fluid pressure (MPa) | Speed (mm/s) | Stroke (mm) |
| 1 | The upper Main cylinder of 4- | 130 | 42 | 0.5-60 | 2000 |
| 2 | 1-to bore a hole cylinder | 90 | 42 | 0.5-60 | 3000 |
| 3 | The left horizontal Main cylinder of 1- | 130 | 42 | 0.5-40 | 1000 |
| 4 | 1-left level perforation cylinder | 50 | 42 | 0.5-60 | 700 |
| 5 | The right horizontal Main cylinder of 1- | 130 | 42 | 0.5-40 | 1000 |
| 6 | 1-right level perforation cylinder | 50 | 42 | 0.5-60 | 700 |
| 7 | Perforation or liftout tank under 1- | 20 | 42 | 0.5-60 | 1500 |
The intensity of framework for support, rigidity and guiding accuracy make hydraulic press reach following performance:
(1), each hydraulic cylinder loads the positional precision of axle is≤± 0.5mm
(2), the balance quality of moved cross beam is 0.25mm/m
(3), left and right horizontal hydraulic cylinder loads the synchronization accuracy of axle is≤± 0.5mm
(4), isothermal forging speed stability error 5%
The embodiment of the present invention and the significant index of prior art contrast in table 2.
Table 2
| Title | Embodiment | The U.S. | Germany | Britain |
| General force of deformation (MN) | 350 | 155 | 310 | 360 |
| Horizontal force (MN) | 2*130 | 2*35/45 | 2*10 | 2*60 |
| The kind of drive | Oil pump directly drives | Water pump accumulator | Water pump accumulator | Water pump accumulator |
| The number of axle and control mode | 7 axle SERVO CONTROL | 5 axle digital output modul | 3 axle digital output modul | 5 axle digital output modul |
| Produce maximum forge weight (kg) | 4000 | 2000 | 3000 | 3000 |
Claims (7)
1. a combined bidirectional prestressing force framework for support, is characterized in that: comprise the identical and symmetrical vertical pillars beam (2 of two size structures; 4) described vertical pillars beam (2 and is respectively retained on; 4) the horizontal entablature (6) of top and bottom and horizontal sill (1), and vertical prestressed draw-bar device (71), described vertical pillars beam (2; 4) comprise two beam of uniform strengths and sleeve, two described beam of uniform strengths are by described sleeve transverse splicing, and the cross section of the described beam of uniform strength is rectangle, and be plane inside it, outside has protuberance; The cross-sectional area of the part that the described beam of uniform strength is positioned at above described protuberance from up to down increases gradually, the cross-sectional area of the part that the described beam of uniform strength is positioned at below described protuberance from up to down reduces gradually, described sleeve and axis thereof in horizontal direction between two beam of uniform strengths, described horizontal entablature (6), vertical pillars beam (2; It is 4) integral by described vertical prestressed draw-bar device (71) pretension with horizontal sill (1),
Described horizontal entablature (6) and horizontal sill (1) are the convex beam of uniform strength, the bossy body of described horizontal entablature (6) and the bossy body of described horizontal sill (1) are oppositely arranged, two convex shoulder planes described vertical pillars beam (2 with two respectively of described horizontal entablature (6); 4) top connects, two convex shoulder planes described vertical pillars beam (2 with two respectively of described horizontal sill (1); 4) bottom connects, two sides described vertical pillars beam (2 with two respectively of the bossy body of described horizontal entablature (6); 4) inside top face contacts, two sides described vertical pillars beam (2 with two respectively of the bossy body of described horizontal sill (1); 4) bottom inside face contacts,
Also comprise the horizontal prestressed draw-bar device (73) of bottom level prestressed draw-bar device (72) and top, two described vertical pillars beams (2; 4) bossy body of bottom and described horizontal sill (1) is integral by described bottom level prestressed draw-bar device (72) pretension, two described vertical pillars beams (2; 4) bossy body of top and described horizontal entablature (6) is integral by described top horizontal prestressed draw-bar device (73) pretension.
2. combined bidirectional prestressing force framework for support according to claim 1, is characterized in that: the described beam of uniform strength is hollow beam.
3. combined bidirectional prestressing force framework for support according to claim 1, is characterized in that: described vertical pillars beam (2; 4) top is that key is connected with the convex shoulder plane of described horizontal entablature (6), described vertical pillars beam (2; 4) bottom is that key is connected with the convex shoulder plane of described horizontal sill (1).
4. combined bidirectional prestressing force framework for support according to claim 1, is characterized in that: described vertical prestressed draw-bar device (71) comprises many thin pull bars, and the diameter of described thin pull bar is 160 ~ 280mm.
5. combined bidirectional prestressing force framework for support according to claim 1, it is characterized in that: described bottom level prestressed draw-bar device (72) and top horizontal prestressed draw-bar device (73) include many thin pull bars, the diameter of described thin pull bar is 160 ~ 280mm.
6. combined bidirectional prestressing force framework for support according to claim 1, is characterized in that: the cross section of described sleeve is circular or rectangle.
7. combined bidirectional prestressing force framework for support according to claim 1, is characterized in that: be provided with shoulder hole in described sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410307044.9A CN104085128B (en) | 2014-06-30 | 2014-06-30 | Combined bidirectional prestressing force framework for support |
| PCT/CN2015/081799 WO2016000535A1 (en) | 2014-06-30 | 2015-06-18 | Combined bidirectional pre-stress bearing rack |
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| CN201410307044.9A CN104085128B (en) | 2014-06-30 | 2014-06-30 | Combined bidirectional prestressing force framework for support |
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| CN104085128B true CN104085128B (en) | 2015-11-25 |
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|---|---|---|---|---|
| CN104085128B (en) * | 2014-06-30 | 2015-11-25 | 南京迪威尔高端制造股份有限公司 | Combined bidirectional prestressing force framework for support |
| CN104117614B (en) * | 2014-06-30 | 2017-03-29 | 南京迪威尔高端制造股份有限公司 | Vertical pillars beam |
| CN104129094B (en) * | 2014-06-30 | 2016-04-06 | 南京迪威尔高端制造股份有限公司 | Combined type double X-type compound direction system |
| CN110773621B (en) * | 2019-11-05 | 2021-06-01 | 秦皇岛通桥科技有限公司 | Special hydraulic press for bulging forming of automobile axle housing and pressing forming method thereof |
| CN111590009B (en) * | 2020-06-19 | 2024-07-16 | 中冶重工（唐山）有限公司 | Horizontal forging press base |
| CN117960943A (en) * | 2024-04-01 | 2024-05-03 | 中国重型机械研究院股份公司 | Central rod piece for ring piece bulging device with prestress and use method |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016000535A1 (en) | 2016-01-07 |
| CN104085128A (en) | 2014-10-08 |
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