CN104960233A - Hydraulic machine, cylinder beam structure used for hydraulic machine and manufacturing method thereof - Google Patents
Hydraulic machine, cylinder beam structure used for hydraulic machine and manufacturing method thereof Download PDFInfo
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- CN104960233A CN104960233A CN201510395691.4A CN201510395691A CN104960233A CN 104960233 A CN104960233 A CN 104960233A CN 201510395691 A CN201510395691 A CN 201510395691A CN 104960233 A CN104960233 A CN 104960233A
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Abstract
The invention discloses a cylinder beam structure used for a hydraulic machine and the hydraulic machine with the cylinder beam structure. The cylinder beam structure comprises a beam body, a cylinder bottom portion and a cylinder barrel portion, wherein a cylinder body containing cavity is formed in the center of the beam body; the cylinder bottom portion is fixedly arranged at an upper opening end of the cylinder body containing cavity; the cylinder barrel portion is contained in the cylinder body containing cavity and constructed into a cylinder body portion used for the hydraulic machine and matched with the cylinder bottom portion. According to the hydraulic machine, the cylinder beam structure used for the hydraulic machine and the manufacturing method thereof, the hydraulic cylinder is arranged in a beam, the height of a rack is greatly reduced, in addition, the cylinder bottom is exposed to the top face of the beam, the installation of accessories including a charging valve, a safety valve, a valve block and a supercharger is facilitated, the exposed cylinder bottom greatly facilitates piping and disassembly and assembly and maintenance, meanwhile, in the cylinder beam structure, the cylinder bottom has no transition fillet, and therefore the utilization rate of the cylinder cavity stroke is improved. In addition, stress concentration areas in the cylinder beam structure are greatly reduced, therefore, the service life of the hydraulic cylinder is greatly prolonged, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to hydraulic press technical field, in particular to the manufacture method of a kind of cylinder girder construction for hydraulic press of improvement, the hydraulic press with this cylinder girder construction and cylinder girder construction.
Background technology
Hydraulic press is a kind of general machinery, for the material forming technique of automobile, aircraft, pottery, plastics every profession and trade.Heavy hydraulic press is the indispensable jumboes in field such as national defence, military project, space flight, nuclear power, shipbuilding, is the significant equipment of symbol national strength.Cylinder and beam are the basic components of hydraulic press, and the hydraulic medium acted in cylinder produces huge pressure loading by cylinder, pressure loading is delivered on upper and lower beam, forms closed balanced system of force through column.How pressure loading is delivered on beam, and namely dynamic changes process chain is the key issue affecting press intensity, rigidity Design.Cylinder-load beam transmission refers to a kind of dynamic changes process chain relation.
The cylinder load beam that Fig. 1 shows existing hydraulic press transmits schematic diagram.Oil pressure pi acts on cylinder bottom 1 ', produces thrust P upwards, and also acts on piston simultaneously, produces equivalent downward thrust (P), and under its effect, dynamic beam 2 ' moves downward, compacting forging 3 '.According to balanced system of force power transfer chain principle, act on cylinder bottom 1 ' power upwards, through cylinder mouth flange contact facings (A face), will be delivered on the bottom surface of upper beam 4 ', its value is also P.Above-mentioned cylinder-load beam transfer chain relation is based upon on respective carrier face on cylinder mouth flange and soffit, dynamic changes process relation namely between A face, this is also referred to as " cylinder oral instructions power type " dynamic changes process chain.
Fig. 2 shows the structural representation of existing another kind of hydraulic press, which show the cylinder girder construction of cylinder bottom power transmission type.As shown in Figure 2, shown is wire wrapped frame, and steel wire floor is by upper and lower beam 1 ", 2 " (being half circular beam) and column 3 " be wound around pretension become a framework for support, this is the dynamic changes process relation of " cylinder bottom power transmission type ".Cylinder bottom 4 " under the effect of oil pressure pi, pressure P is directly delivered to upper beam 1 " bottom surface on, and do not pass through cylinder flange.Adopt the press of " cylinder oral instructions power type " and " cylinder bottom power transmission type " two kinds of dynamic changes process chains, the application in engineering is all very extensive, and they respectively have pluses and minuses.To sketch below.
For cylinder oral instructions power type dynamic changes process chain, as shown in fig. 1, beam central cross section is done be used as maximal bending moment M, as shown in Figure 3, cylinder passes the position of beam just herein, and there is very large hole, it weakens the intensity of such as upper beam.The distortion in hole also can cause the change of hole radius of curvature, and it makes the tangential stress on limit, hole increase further, sees Fig. 3.This is the maximum hidden danger causing beam strength problem, has to increase the thickness of hole week structure in order to improve intensity.
As shown in fig. 1, in cylinder oral instructions power type dynamic changes process chain, the logical contact surface A therebetween of dynamic changes process of beam, cylinder carries out, but contact situation can worsen with the increase adding/unload cycle-index, contact the uneven contact stress that makes to increase severely, affect the intensity of beam.Such as, factory of China 8000 tons of cylinder oral instructions power type single cylinder press, fresh processed beam, cylinder, because matching relationship is good, contact is good, and the working life of cylinder can reach 700,000 times; And when after long-term work, because contact condition worsens, an old beam of new cylinder coordinates, the life-span of cylinder is then down to 250,000 times, coordinates the great of the good and bad relation of the contact in A face as seen.
Cylinder bottom active force P balance by the bearing reaction Q on flange, thus cylinder barrel wall bears huge tension Qz, as shown in Figure 4, which show the structural representation of the cylinder bottom 5 ' of the hydraulic cylinder in the hydraulic press in Fig. 1, and forming two areas of stress concentration: (radius is R, as shown in Figure 4) and flange stress concentration zones II (being generally combination profile) for cylinder bottom and casing wall transition region I.The cylinder body of the overwhelming majority destroys all in this Liang Ge district.
In order to improve the intensity in I district, then add the thickness of big cylinder bottom, be the 1.5-2.5 of casing wall thickness doubly, thick cylinder bottom flexural deformation is little, thus reduces the bending stress in this district; R increases the stress concentration degree that obviously can reduce I district.Obviously these two measures all considerably increase the weight of cylinder.The increase of R, also add the length of cylinder, but does not increase the effective travel of cylinder, because the piston of precision-fit can not run to R fillet district.
In addition, the machining accuracy and the surface smoothness that improve I, II district are the Important Actions increasing cylinder fatigue life, but add processing cost and the cycle of cylinder simultaneously.Alternatively, also can carry out roller process to II district, increase the residual compressive stress on top layer, thus greatly improve the fatigue resistance in II district, too increase the processing cost of cylinder simultaneously.
For cylinder bottom power transmission type dynamic changes process as shown in Figure 2, due to cylinder bottom support, therefore cancel cylinder mouth flange, the II district that thus stress is concentrated disappears, and as shown in Figure 2, a series of disadvantages associated disappears thereupon.In addition, cylinder bottom can be separated with cylinder, form assembling cylinder bottom formula cylinder structure, thus area of stress concentration I district also disappears, and a series of disadvantages associated also disappears thereupon.
Further, without the need to knuckle R at the bottom of combination cylinder, thus improve cylinder inner chamber operation mileage rate (piston can move longer distance).
The cylinder girder system system of " cylinder bottom power transmission type " dynamic changes process chain, its shortcoming is also clearly.Because cylinder bottom end face contacts with upper soffit, cylinder bottom is covered by soffit completely, thus loses the installing space of cylinder bottom end face, cannot install the parts such as prefill valve, safety valve, valve block on cylinder bottom end face; Also external booster directly cannot be installed to cylinder bottom end face.Hydraulic cylinder is placed in below soffit but not beam, considerably increases the height of frame, and this is a very large shortcoming.
In current engineering, oil cylinder more than exceedance kiloton, all avoids " cylinder oral instructions power type "; And adopt " cylinder bottom power transmission type ".But in " cylinder bottom power transmission type " cylinder beam relation, cylinder top is covered completely by soffit, the thus very serious scope of application that have impact on it.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
In view of this, the present invention needs to provide a kind of cylinder girder construction for hydraulic press, cylinder girder construction both can overcome the shortcoming of existing cylinder oral instructions power type and cylinder bottom power transmission type cylinder girder construction, and can overcome the installation of accessory of existing hydraulic press, and structure is simple, easily manufactured.
In addition, the present invention also needs to provide a kind of hydraulic press with said structure.
Further, the present invention still needs the manufacture method providing a kind of cylinder girder construction for hydraulic press, and the method step is few, technique is simple.
According to an aspect of the present invention, provide a kind of cylinder girder construction for hydraulic press, comprising: Liang Ti, the center of beam body is formed with cylinder body container cavity; Cylinder bottom portion, cylinder bottom portion is arranged on the upper open end of cylinder body container cavity regularly; And bore section, bore section is contained in cylinder body container cavity, and is configured to coordinate with cylinder bottom portion with the cylinder part formed for hydraulic press.
In cylinder girder construction of the present invention, hydraulic cylinder is placed in beam, substantially reduces the height of frame.In addition, cylinder bottom is exposed on beam on end face, is convenient to install the accessories such as prefill valve, safety valve, valve block and booster.The cylinder bottom exposed greatly facilitates pipe arrangement and dismounting maintenance.Meanwhile, in this cylinder girder construction, cylinder bottom without knuckle, thus improves cylinder inner chamber operation mileage rate.In addition, in this cylinder girder construction, region of stress concentration greatly reduces, thus greatly extends the service life of hydraulic cylinder, reduces maintenance cost.
According to one embodiment of present invention, cylinder bottom portion comprises: the first cylindrical part; And second cylindrical part, the diameter of the second cylindrical part is less than the first cylindrical part and is positioned at also setting with one heart under the first cylindrical part, wherein the first cylindrical part and beam body are integrally formed, the second cylindrical part and the upper end for coordinating bore section.
According to one embodiment of present invention, cylinder bottom portion comprises: the first cylindrical part; First flange part, the first flange part is formed in the lower end of the first barrel portion; And second cylindrical part, second cylindrical part to be arranged under the first cylindrical part and to arrange with the first cylindrical part is concentric, second cylindrical part is for coordinating the upper end of bore section, the upper end of its central sill body container cavity is formed with the second flange part, second flange part and the first flange part overlap, for the upper end in stator bore portion.
According to one embodiment of present invention, beam body comprises: upper cover plate and lower cover, and upper cover plate and lower cover are relatively horizontally disposed with; Web, web is connected between upper cover plate and lower cover vertically, and wherein the web of penetrale is formed and forms cylinder body container cavity with upper cover plate and lower cover.
According to one embodiment of present invention, cylinder bottom portion and upper cover plate are integrally formed, and are formed with cylinder barrel between cylinder bottom portion and upper cover plate and install cannelure, for installing bore section.
According to one embodiment of present invention, cylinder barrel is installed in cannelure and is provided with sealing ring, for sealing bore section and cylinder bottom portion.
According to one embodiment of present invention, ribs is formed with further between the upper surface of cylinder bottom portion and beam body.
According to one embodiment of present invention, the lower end of bore section is connected to the lower surface of beam body by jam plate.
According to a further aspect in the invention, provide a kind of hydraulic press, comprising: the first beam; As above cylinder girder construction, cylinder girder construction is connected with underbeam by column; Piston, one end of piston is contained in cylinder part and the other end is connected with dynamic model; And workbench, for placing work piece on workbench, and the working face of workbench and dynamic model are oppositely arranged.
According to one embodiment of present invention, the first beam is upper beam or underbeam.
According to another aspect of the invention, provide a kind of manufacture method of the cylinder girder construction for hydraulic press, comprising: hydraulic cylinder is divided into cylinder bottom portion and bore section; Cylinder bottom portion is arranged on regularly the Liang Tizhong being formed with cylinder body container cavity; And bore section to be arranged in cylinder barrel container cavity and to be connected to cylinder bottom portion, to form the cylinder part for hydraulic press.
In said method according to the present invention, manufacturing step is few, cost is low, and can provide the cylinder girder construction with above-mentioned advantage.
According to one embodiment of present invention, be formed with cylinder barrel between cylinder bottom portion and beam body and cannelure is installed, and one end of bore section is arranged in cylinder barrel installation cannelure.
According to one embodiment of present invention, cylinder barrel is installed in cannelure and is provided with sealing ring, for sealing bore section and cylinder bottom portion.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the structural representation of existing hydraulic press, which show the cylinder girder construction of cylinder oral instructions power type;
Fig. 2 shows the structural representation of existing another kind of hydraulic press, which show the cylinder girder construction of cylinder bottom power transmission type;
Fig. 3 shows upper beam in the hydraulic press in Fig. 1 and moment of flexure schematic diagram thereof;
Fig. 4 shows the structural representation of the cylinder bottom of the hydraulic cylinder in the hydraulic press in Fig. 1;
Fig. 5 (a)-(f) shows the schematic diagram of the cylinder girder construction for hydraulic press according to an embodiment of the invention;
Fig. 6 shows the structural representation of the cylinder girder construction for hydraulic press according to another embodiment of the invention; And
Fig. 7 shows the part-structure schematic diagram of hydraulic press according to an embodiment of the invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The present invention proposes a kind of brand-new cylinder load beam transferring structure.This structure is referred to as " back power transmission type " dynamic changes process chain by the present inventor.This cylinder-load beam transfer chain has abandoned the shortcoming of " cylinder oral instructions power type " and " cylinder bottom power transmission type ", remains again their advantage simultaneously.Describe in detail according to the cylinder girder construction for hydraulic press of the present invention and the hydraulic press with this cylinder girder construction below in conjunction with accompanying drawing.
5-7 describes according to an embodiment of the invention for cylinder girder construction and the hydraulic press with this cylinder girder construction of hydraulic press below with reference to accompanying drawings.Fig. 5 (a)-(f) shows the schematic diagram of the cylinder girder construction for hydraulic press according to an embodiment of the invention, Fig. 6 shows the structural representation of the cylinder girder construction for hydraulic press according to another embodiment of the invention, and Fig. 7 shows the part-structure schematic diagram of hydraulic press according to an embodiment of the invention.
As shown in Fig. 5,6, this cylinder girder construction being used for hydraulic press comprises: beam body 1, and the center of beam body 1 is formed with cylinder body container cavity 2; Cylinder bottom portion 3, cylinder bottom portion 3 is arranged on the upper open end of cylinder body container cavity 2 regularly; And bore section 4, bore section 4 is contained in cylinder body container cavity 2, and is configured to coordinate to form the cylinder part for hydraulic press with cylinder bottom portion 3.Bore section 4 it should be noted that, as long as can be mated with cylinder bottom portion 3 and sealed against one another.
In cylinder girder construction of the present invention, hydraulic cylinder is placed in beam, substantially reduces the height of frame.In addition, cylinder bottom is exposed on beam on end face, is convenient to install the accessories such as prefill valve, safety valve, valve block and booster.The cylinder bottom exposed greatly facilitates pipe arrangement and dismounting maintenance.Meanwhile, in this cylinder girder construction, cylinder bottom without knuckle, thus improves cylinder inner chamber operation mileage rate.In addition, in this cylinder girder construction, region of stress concentration greatly reduces, thus greatly extends the service life of hydraulic cylinder, reduces maintenance cost.
According to one embodiment of present invention, cylinder bottom portion 3 can be integrally formed on beam body 1, and as shown in Fig. 5 (e), cylinder bottom portion 3 comprises: the first cylindrical part 31; And second cylindrical part 32, the diameter of the second cylindrical part 32 is less than the first cylindrical part 31 and is positioned at also setting with one heart under the first cylindrical part 31, wherein the first cylindrical part 31 is integrally formed with beam body 1, the second cylindrical part 32 and the upper end 41 for coordinating bore section 4.
According to another embodiment of the invention, cylinder bottom portion 3 also can be incorporated on described beam body 1.As shown in Figure 6, now cylinder bottom portion 3 comprises: the first cylindrical part 31; First flange part 33, first flange part 33 is formed in the lower end of the first barrel portion 31; And second cylindrical part 32, second cylindrical part 32 to be arranged under the first cylindrical part 31 and to arrange with the first cylindrical part 31 is concentric, second cylindrical part 32 is for coordinating the upper end 41 of bore section 4, the upper end of its central sill body container cavity 2 is formed with the second flange part 21, second flange part 21 and the first flange part 33 overlap, for the upper end 41 in stator bore portion 4.
Be briefly described to the structure of beam body 1 below.According to one embodiment of present invention, beam body 1 comprises: upper cover plate 11 and lower cover 12, and upper cover plate 11 and lower cover 12 are relatively horizontally disposed with; Web 13, web 13 is connected between upper cover plate 11 and lower cover 12 vertically, and wherein the web 13 of penetrale is formed and forms cylinder body container cavity 2 with upper cover plate 11 and lower cover 12.Such as, but it should be noted that, beam body 1 also can have other structures, solid cast body, as long as wherein cylinder body container cavity 2 can be formed.
According to one embodiment of present invention, as shown in Fig. 5 (e), cylinder bottom portion 3 and upper cover plate 11 are integrally formed, and are formed with cylinder barrel between cylinder bottom portion 3 and upper cover plate 11 and install cannelure 5, for installing the upper end 41 of bore section 4.According to one embodiment of present invention, cylinder barrel is installed in cannelure 5 and is provided with sealing ring (not shown), for sealing bore section 4 and cylinder bottom portion 3.
According to one embodiment of present invention, ribs 7 is formed with further between the upper surface of cylinder bottom portion 3 and beam body 1, as shown in Figure 6.
According to one embodiment of present invention, the lower end of bore section 4 is connected to the lower surface of beam body 1 by jam plate 6.
According to a further aspect in the invention, provide a kind of hydraulic press, comprising: the first beam; As above cylinder girder construction, cylinder girder construction is connected with underbeam by column; Piston 9, one end of piston 9 is contained in cylinder part and the other end is connected with dynamic model 14; And workbench, for placing work piece on workbench, and the working face of workbench and dynamic model 14 are oppositely arranged.According to one embodiment of present invention, the first beam is upper beam or underbeam, and this can require to change accordingly according to the concrete structure of hydraulic press.
Fig. 7 is the mounting structure schematic diagram of bore section 2 of the present invention and beam body 1.Cannot the blue cylindrical shell without cylinder bottom, the cylinder barrel of direct insertion top surface of the beam cover plate bottom surface is installed in cannelure 5, interior pressure pi acts in inner cavity of cylinder, and its radial load is born by bore section 4, and axial force is then directly delivered to end face (box-girder cover plate) and the piston 9 of beam.Obvious bore section 4 does not bear axial force.The present invention is by changing the integrated relation (dynamic changes process relation and structure home to return to distribution relation) of cylinder-beam, and form the dynamic changes process chain of top surface of the beam power transmission type, obtain a brand-new cylinder-girder system system, it preserves the advantage of cylinder oral instructions power type and cylinder bottom power transmission type, and abandoned its shortcoming.
Match with the upper cover plate installing ring on beam inside cylinder barrel, ensure the location of cylinder barrel and the sealing of oil cylinder.In order to ensure the axial location (Fig. 7) of cylinder barrel, available jam plate 6 and hang part such as a screw 10 grade and fixed, as shown in Figure 7.
According to another aspect of the invention, provide a kind of manufacture method of the cylinder girder construction for hydraulic press, comprising: hydraulic cylinder B is divided into cylinder bottom portion 3 and bore section 4; Being arranged on regularly in cylinder bottom portion 3 is formed in the beam body 1 of cylinder body container cavity 2; And bore section 4 to be arranged in cylinder barrel container cavity 2 and to be connected to cylinder bottom portion 3, to form the cylinder part for hydraulic press.
Specifically, as shown in Figure 5, cylinder mouth flange and the cylinder bottom knuckle R of existing hydraulic cylinder is first removed, as shown in Fig. 5 (a) and 5 (b), when keeping cylinder stroke constant, can by cylinder bottom contraction in length R distance.Owing to eliminating arc transition fillet R, thus do not need the thickness of the bottom thickening hydraulic cylinder.Then bottom splitter cylinder 2, as shown in Fig. 5 (c).The cylinder bottom portion 2 separated is displaced to the end face (as the box-girder be made up of upper cover plate 11, lower cover 12 and web 13, see Fig. 5 (e), be namely displaced on upper cover plate 11) of beam body 1, as shown in Fig. 5 (d).Then, cylinder bottom portion 2 and beam body 1 are merged formed as a whole, namely cylinder bottom portion 2 is parts of beam body 1, as shown in Fig. 5 (e), instead of a part for hydraulic cylinder.In addition, as shown in Fig. 5 (f) for removing the bore section 4 of the hydraulic cylinder in flange and cylinder bottom portion 2.
Can have two kinds of modes that they and beam are become to permeate overall parts as the cylinder bottom on top surface of the beam, welding as Fig. 5 (e), and shows knockdown topology view in Fig. 6.Although cylinder bottom portion 2 of the present invention has been the end face of beam body 1, the function of its cylinder bottom has still existed." cylinder bottom " is in the end face of beam completely, it is convenient to install prefill valve, safety valve, booster and various pipeline.
In said method according to the present invention, manufacturing step is few, cost is low, and can provide the cylinder girder construction with above-mentioned advantage.
Be formed with cylinder barrel between cylinder bottom portion 3 and beam body and cannelure 5 is installed, and the upper end 41 of bore section 4 is arranged in cylinder barrel installation cannelure 5.According to one embodiment of present invention, cylinder barrel is installed in cannelure 5 and is provided with sealing ring (not shown), for sealing bore section 4 and cylinder bottom portion 3.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1., for a cylinder girder construction for hydraulic press, it is characterized in that, comprising:
Liang Ti, the center of described beam body is formed with cylinder body container cavity;
Cylinder bottom portion, described cylinder bottom portion is arranged on the upper open end of described cylinder body container cavity regularly, and described cylinder bottom portion comprises:
First cylindrical part; And second cylindrical part, the diameter of described second cylindrical part is less than described first cylindrical part and is positioned at also setting with one heart under described first cylindrical part, wherein said first cylindrical part and described beam body are integrally formed, and described second cylindrical part is for coordinating the upper end of described bore section;
Bore section, described bore section is contained in cylinder body container cavity, and is configured to coordinate with described cylinder bottom portion with the cylinder part formed for hydraulic press.
2., as claimed in claim 1 for the cylinder girder construction of hydraulic press, it is characterized in that, beam body comprises:
Upper cover plate and lower cover, described upper cover plate and described lower cover are relatively horizontally disposed with;
Web, described web is connected between described upper cover plate and described lower cover vertically, and wherein the described web of penetrale and described upper cover plate and described lower cover form described cylinder body container cavity.
3. as claimed in claim 2 for the cylinder girder construction of hydraulic press, it is characterized in that, described cylinder bottom portion and described upper cover plate are integrally formed, and are formed with cylinder barrel between described cylinder bottom portion and described upper cover plate and install cannelure, for installing described bore section.
4. as claimed in claim 3 for the cylinder girder construction of hydraulic press, it is characterized in that, cylinder barrel is installed in cannelure and is provided with sealing ring, for sealing described bore section and described cylinder bottom portion.
5., as claimed in claim 1 for the cylinder girder construction of hydraulic press, it is characterized in that, the lower end of described bore section is connected to the lower surface of beam body by jam plate.
6. a hydraulic press, comprising:
First beam;
Cylinder girder construction as described in claim 1-5 any one, described cylinder girder construction is connected with described first beam by column;
Piston, one end of described piston is contained in described cylinder part and the other end is connected with dynamic model; And workbench, for placing work piece on described workbench, and the working face of workbench and described dynamic model are oppositely arranged.
7. hydraulic press according to claim 6, is characterized in that, described first beam is upper beam or underbeam.
8., as claimed in claim 1 for a manufacture method for the cylinder girder construction of hydraulic press, comprising:
Hydraulic cylinder is divided into cylinder bottom portion and bore section;
Cylinder bottom portion is arranged on regularly the Liang Tizhong being formed with cylinder body container cavity; And bore section to be arranged in cylinder barrel container cavity and to be connected to cylinder bottom portion, to form the cylinder part for hydraulic press.
9. the manufacture method of the cylinder girder construction for hydraulic press according to claim 8, is characterized in that, is formed with cylinder barrel and installs cannelure between described cylinder bottom portion and described beam body, and one end of described bore section is arranged in described cylinder barrel installation cannelure.
10. the manufacture method of the cylinder girder construction for hydraulic press according to claim 9, is characterized in that, described cylinder barrel is installed in cannelure and is provided with sealing ring, for sealing bore section and cylinder bottom portion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510395691.4A CN104960233B (en) | 2011-04-13 | 2011-04-13 | Hydraulic press, the cylinder girder construction for hydraulic press and its manufacture method |
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| CN201510395691.4A CN104960233B (en) | 2011-04-13 | 2011-04-13 | Hydraulic press, the cylinder girder construction for hydraulic press and its manufacture method |
| CN201110092402.5A CN102729518B (en) | 2011-04-13 | 2011-04-13 | Hydraulic press, for the cylinder girder construction of hydraulic press and manufacture method thereof |
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| CN2460765Y (en) * | 2000-12-08 | 2001-11-21 | 清华大学 | Square cylinder combined with body frame |
| DE10236297A1 (en) * | 2002-08-08 | 2004-02-19 | Sms Eumuco Gmbh | Main/press cylinder for pipe extruder and extrusion press has projecting rod with integrated advance and retraction cylinder and hollow bore containing a tube |
| CN1686707A (en) * | 2005-05-12 | 2005-10-26 | 张挺胜 | Main hydrraulic cylinder having supporting beam |
| CN2846104Y (en) * | 2005-11-21 | 2006-12-13 | 天津市天锻压力机有限公司 | Slide block bottom placed four pillar hydraulic press guided by rail |
| CN201186493Y (en) * | 2008-05-09 | 2009-01-28 | 喻国锋 | Four-pole press machine |
| CN101973136A (en) * | 2010-10-11 | 2011-02-16 | 哈尔滨工业大学 | Cylinder beam integrated hydraulic press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102729518A (en) | 2012-10-17 |
| CN102729518B (en) | 2015-12-16 |
| CN104960233B (en) | 2017-11-07 |
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