CN102000748B - Anti-eccentricity pressing piston rod connecting device of no-guiding slider type hydraulic press - Google Patents
Anti-eccentricity pressing piston rod connecting device of no-guiding slider type hydraulic press Download PDFInfo
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- CN102000748B CN102000748B CN201010515301XA CN201010515301A CN102000748B CN 102000748 B CN102000748 B CN 102000748B CN 201010515301X A CN201010515301X A CN 201010515301XA CN 201010515301 A CN201010515301 A CN 201010515301A CN 102000748 B CN102000748 B CN 102000748B
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Abstract
The invention belongs to the mechanical manufacturing field. The anti-eccentricity pressing piston rod connecting device of a no-guiding slider type hydraulic press relates to a piston rod and a working slider of a hydraulic cylinder and is characterized in that: the connecting device comprises a bolt, a pressing flange, a fixed support and a hinged support; a piston rod radial through hole is arranged in the middle part of the pressing flange, the aperture of the piston rod radial through hole is 3-5mm more than that of the radial part of the piston rod, a hinged support mounting hole is arranged in the middle part of the fixed support, and the aperture of the hinged support mounting hole is 3-5mm more than the maximum diameter of a piston rod ball head, the fixed support is welded on the working slider, and the hinged support is arranged in the hinged support mounting hole of the fixed support, the radial part of the piston rod penetrates through the piston rod radial through hole on the pressing flange, the radial part of the piston rod is arranged in a space surrounded by the pressing flange, the fixed support and the hinged support, and the pressing flange and the fixed support are fixed by a bolt; and the connecting device can effectively avoid damage to mechanical equipment, caused by eccentric pressing.
Description
Technical field
The invention belongs to mechanical manufacturing field, the big span spherical tank of particularly a kind of big pressure limb is specifically related to a kind of the do not have piston rod of guide runner formula hydraulic press and the jockey of work slide block with hydraulic press (making the hydraulic machinery of shaped component).
Background technology
Spherical tank is the spherical reservoir vessel of the steel of big capacity, pressure-bearing, is widely used in departments such as oil, chemical industry, metallurgy, and it can be used as the reservoir vessel of liquefied petroleum gas, liquefied natural gas, liquid oxygen, liquefied ammonia, liquid nitrogen and other media.The structure of spherical container is made up of spherical shell and bearing two parts; Spherical shell is formed by many ball clack assembly weldings; Because the dimensioning of spherical storage tank is very big, add the restriction of transportation, its manufacture process is for pressing ball clack at pressure vessel manufacturer earlier; The good pillar of prewelding, totally assemble at the scene that is transported to then.
The pressing process of ball clack be one while suppressing the process than type.It is generally acknowledged: during first pressing, the curvature of width is usually little than other direction, will suitably add backing plate at concavo-convex intermode during pressure and proofread and correct.Because suitably add the cause that backing plate is suppressed at concavo-convex intermode, the piston rod of hydraulic press is stressed not to be merely vertical direction, and in the horizontal direction can be stressed yet, cause the skew of piston stress point.Existing domestic guide runner formula hydraulic press (or claiming frame type hydraulic press) is made up of framework, hydraulic cylinder, work slide block; Hydraulic cylinder is fixed on the framework, the piston rod of hydraulic cylinder (promptly pressing down piston) be flange be threaded fixing (like Fig. 1, shown in Figure 2) work being connected between the slide block.
Receive level and vertical direction to make a concerted effort to influence; The flange discontinuity that is threaded that presses down piston and work slide block of hydraulic press; The skew of piston stress point; Very easily cause the accident that piston rod thread damages, oil cylinder cylinder mouth guide pin bushing damages and bolt cuts off to take place, the lighter damages plant equipment, the serious generation that causes industrial accident.
Summary of the invention
To the problems referred to above, the object of the invention is to provide a kind of anti-eccentric compaction piston rod connecting device that does not have guide runner formula hydraulic press, and this jockey can effectively be avoided owing to the plant equipment that eccentric compacting causes is damaged.
For realizing above-mentioned purpose; The technical scheme that the present invention taked is: the anti-eccentric compaction piston rod connecting device of no guide runner formula hydraulic press; It relates to piston rod 2, the work slide block 3 of hydraulic cylinder; It is characterized in that this jockey comprises bolt 6, supported flange 7, hold-down support 8, pivoting support 9; The middle part of supported flange 7 is provided with piston rod footpath portion through hole 12, and the aperture of piston rod footpath portion through hole 12 is greater than the diameter 3～5mm of piston rod footpath portion 11, and supported flange 7 is provided with a plurality of bolt holes 13; The middle part of hold-down support 8 is provided with pivoting support installing hole 16; The aperture of pivoting support installing hole 16 is greater than the maximum gauge 3～5mm of piston rod bulb 10; Hold-down support 8 is provided with screw 17, and the number of screw 17 and present position are corresponding with the number and the present position of bolt hole 13; Hold-down support 8 is welded on the work slide block 3, and pivoting support 9 is placed in the pivoting support installing hole 16 of hold-down support 8, and the upper surface of pivoting support 9 is the arcwall face of indent;
The bottom of the piston rod 2 of hydraulic cylinder is followed successively by piston rod footpath portion 11 and piston rod bulb 10, and piston rod footpath portion 11 is positioned at the top of piston rod bulb 10, and the diameter of piston rod footpath portion 11 is less than the maximum gauge of piston rod bulb 10;
The piston rod footpath portion through hole 12 on the supported flange 7 passes in the piston rod footpath portion 11 of piston rod 2; The piston rod footpath portion 11 of piston rod 2 is positioned at the space that supported flange 7, hold-down support 8 and pivoting support 9 are surrounded; Supported flange 7 is positioned at the top of hold-down support 8, and supported flange 7 is fixing by bolt 6 with hold-down support 8.
The invention has the beneficial effects as follows:
1, former connecting mode (as shown in Figure 2) is a thread connection, and piston rod thread is prone to be destroyed when receiving eccentric load, is difficult for repairing, and is prone to cause scrapping of whole piston rod.Existing connecting mode is that flange screw adds articulated manner, reserves 3～5mm gap between piston rod bulb and bearing and the supported flange, when receiving eccentric load, certain room for maneuver is arranged, and is difficult for being damaged.
2, the present invention is applied on the no guide runner formula hydraulic press, can effectively avoid owing to the plant equipment that eccentric compacting causes is damaged, and the personal security problem.Having solved no guide runner formula hydraulic press can not eccentric defective of suppressing.
3, the present invention and four-column hydraulic press that guide runner arranged relatively can reduce the device fabrication cost greatly.
Description of drawings
Fig. 1 is the overall structure sketch map of frame type hydraulic press;
Fig. 2 is that present piston rod connects form figure;
Fig. 3 is structural representation of the present invention (piston rod after the improvement connects form figure);
Fig. 4 is the structural representation of supported flange of the present invention;
Fig. 5 is the structural representation of hold-down support of the present invention;
Among the figure: 1-framework, 2-piston rod, the 3-slide block of working, 4-transforms position, 5-flange; The 6-bolt, 7-supported flange, 8-hold-down support, 9-pivoting support; 10-piston rod bulb, 11-piston rod footpath portion, 12-piston rod footpath portion through hole, 13-bolt hole; The 14-bulge loop, 15-annular groove, 16-pivoting support installing hole, 17-screw.
The specific embodiment
In order to understand the present invention better, below in conjunction with embodiment and accompanying drawing technical scheme of the present invention is done further explanation, referring to Fig. 1, Fig. 3, Fig. 4, Fig. 5:
The anti-eccentric compaction piston rod connecting device of no guide runner formula hydraulic press; It relates to piston rod 2, the work slide block 3 of hydraulic cylinder; This jockey comprises bolt 6, supported flange 7, hold-down support 8, pivoting support 9; The middle part of supported flange 7 is provided with piston rod footpath portion through hole 12, and the aperture of piston rod footpath portion through hole 12 is greater than the diameter 3～5mm (and the aperture of piston rod footpath portion through hole 12 is less than maximum gauge of piston rod bulb 10) of piston rod footpath portion 11, and supported flange 7 is provided with a plurality of bolt holes 13, and (said a plurality of bolt holes are 2-22 bolt hole; Be distributed on the supported flange 7, concrete number is confirmed as required); The middle part of hold-down support 8 is provided with pivoting support installing hole 16; The aperture of pivoting support installing hole 16 is greater than the maximum gauge 3～5mm of piston rod bulb 10; Hold-down support 8 is provided with screw 17, number and present position corresponding (also corresponding with the number of bolt 6) of the number of screw 17 and present position and bolt hole 13; Hold-down support 8 is welded on the work slide block 3; Pivoting support 9 is placed on that (diameter of pivoting support 9 is less than the diameter 3～5mm) of pivoting support installing hole 16, and the upper surface of pivoting support 9 is the arcwall face (sphere) of indent in the pivoting support installing hole 16 of hold-down support 8;
The bottom of the piston rod 2 of hydraulic cylinder is followed successively by piston rod footpath portion 11 and piston rod bulb 10 (being sphere), and piston rod footpath portion 11 is positioned at the top of piston rod bulb 10, and the diameter of piston rod footpath portion 11 is less than the maximum gauge of piston rod bulb 10;
Piston rod footpath portion through hole 12 on the supported flange 7 passes in the piston rod footpath portion 11 of piston rod 2, and (supported flange 7 is made up of two semicircle pieces; Effect is convenient the installation); The piston rod footpath portion 11 of piston rod 2 is positioned at the space (between piston rod bulb 10 and the pivoting support 9 3～5mm gap being arranged) that supported flange 7, hold-down support 8 and pivoting support 9 are surrounded; Supported flange 7 is positioned at the top of hold-down support 8, and supported flange 7 is fixed (bottom of bolt 6 is passed bolt hole 13 backs and screwed in the screws 17) with hold-down support 8 by bolt 6.
The lower surface of described supported flange 7 is provided with bulge loop 14, and the upper surface of hold-down support 8 is provided with annular groove 15, and bulge loop 14 is positioned at annular groove 15.
Piston rod 2, supported flange 7, hold-down support 8, pivoting support 9 are forges No. 45 steel, and fine finishining forms after the normalizing.Bolt adopts 8.8 grades of high-strength bolts.
At first according to the size of each parts of parameter designing such as hydraulic press pressure size, piston rod bulb 10 and hold-down support 8,9 of pivoting supports need design 3～5mm gap (this design is row with 2000 t hydraulic press).After forging No. 45 steel normalizings, carry out fine finishining, assemble after producing each parts.
Installation steps are following:
1, hold-down support 8 is soldered on the work slide block 3 of hydraulic press;
2, pivoting support 9 is placed in the pivoting support installing hole 16 of hold-down support 8;
3, piston rod bulb 10 compresses with pivoting support 9;
4, supported flange 7 (being made up of two semicircle pieces) is installed, bolt hole 13 is relative with screw 17;
5, construction bolt 6 backs tighten with torque wrench.
Can do eccentric experiment of pressing after the installation, owing to reserve 3～5mm gap between piston rod bulb 10 and hold-down support 8 and the supported flange 7, when receiving eccentric load, certain room for maneuver arranged, equipment can not be damaged, and can not cause security incident yet.
Above indication be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalence of therefore doing according to claim of the present invention changes, and still belongs to protection scope of the present invention.
Claims (2)
1. the anti-eccentric compaction piston rod connecting device that does not have guide runner formula hydraulic press; It relates to piston rod (2), the work slide block (3) of hydraulic cylinder; It is characterized in that this jockey comprises bolt (6), supported flange (7), hold-down support (8), pivoting support (9); The middle part of supported flange (7) is provided with piston rod footpath portion through hole (12), and the aperture of piston rod footpath portion through hole (12) is greater than the diameter 3～5mm of piston rod footpath portion (11), and supported flange (7) is provided with a plurality of bolt holes (13); The middle part of hold-down support (8) is provided with pivoting support installing hole (16); The aperture of pivoting support installing hole (16) is greater than the maximum gauge 3～5mm of piston rod bulb (10); Hold-down support (8) is provided with screw (17), and the number of screw (17) and present position are corresponding with the number and the present position of bolt hole (13); Hold-down support (8) is welded on the work slide block (3), and pivoting support (9) is placed in the pivoting support installing hole (16) of hold-down support (8), and the upper surface of pivoting support (9) is the arcwall face of indent;
The bottom of the piston rod of hydraulic cylinder (2) is followed successively by piston rod footpath portion (11) and piston rod bulb (10), and piston rod footpath portion (11) is positioned at the top of piston rod bulb (10), and the diameter of piston rod footpath portion (11) is less than the maximum gauge of piston rod bulb (10);
The piston rod footpath portion through hole (12) on the supported flange (7) passes in the piston rod footpath portion (11) of piston rod (2); The piston rod footpath portion (11) of piston rod (2) is positioned at the space that supported flange (7), hold-down support (8) and pivoting support (9) are surrounded; Supported flange (7) is positioned at the top of hold-down support (8), and supported flange (7) is fixing by bolt (6) with hold-down support (8).
2. the anti-eccentric compaction piston rod connecting device of no guide runner formula hydraulic press according to claim 1; It is characterized in that: the lower surface of described supported flange (7) is provided with bulge loop (14); The upper surface of hold-down support (8) is provided with annular groove (15), and bulge loop (14) is positioned at annular groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010515301XA CN102000748B (en) | 2010-10-21 | 2010-10-21 | Anti-eccentricity pressing piston rod connecting device of no-guiding slider type hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010515301XA CN102000748B (en) | 2010-10-21 | 2010-10-21 | Anti-eccentricity pressing piston rod connecting device of no-guiding slider type hydraulic press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102000748A CN102000748A (en) | 2011-04-06 |
| CN102000748B true CN102000748B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010515301XA Expired - Fee Related CN102000748B (en) | 2010-10-21 | 2010-10-21 | Anti-eccentricity pressing piston rod connecting device of no-guiding slider type hydraulic press |
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| CN (1) | CN102000748B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6221969B2 (en) * | 2014-07-01 | 2017-11-01 | 新東工業株式会社 | Cylinder tip structure |
| CN106270216A (en) * | 2016-10-11 | 2017-01-04 | 长沙荆华电子科技有限公司 | A kind of floating junction and apply the punch press of this floating junction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3440909A (en) * | 1966-04-15 | 1969-04-29 | Heinrich Schmid | Safety device for stamping machines |
| CN201227873Y (en) * | 2008-07-07 | 2009-04-29 | 南通皋液液压机有限公司 | Deviation load prevention apparatus of hydraulic machine |
| CN101450537A (en) * | 2008-12-26 | 2009-06-10 | 太原重工股份有限公司 | Connection device of vertical hydraulic press main plunger and pressure head |
| CN201357579Y (en) * | 2009-03-13 | 2009-12-09 | 济南巨能液压机电工程有限公司 | Large-scale ultrahigh pressure piston plunger type cylinder |
| CN201823843U (en) * | 2010-10-21 | 2011-05-11 | 武汉一冶钢结构有限责任公司 | Anti-eccentricity pressed piston rod connection device of unguided slide block type hydraulic press |
-
2010
- 2010-10-21 CN CN201010515301XA patent/CN102000748B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3440909A (en) * | 1966-04-15 | 1969-04-29 | Heinrich Schmid | Safety device for stamping machines |
| CN201227873Y (en) * | 2008-07-07 | 2009-04-29 | 南通皋液液压机有限公司 | Deviation load prevention apparatus of hydraulic machine |
| CN101450537A (en) * | 2008-12-26 | 2009-06-10 | 太原重工股份有限公司 | Connection device of vertical hydraulic press main plunger and pressure head |
| CN201357579Y (en) * | 2009-03-13 | 2009-12-09 | 济南巨能液压机电工程有限公司 | Large-scale ultrahigh pressure piston plunger type cylinder |
| CN201823843U (en) * | 2010-10-21 | 2011-05-11 | 武汉一冶钢结构有限责任公司 | Anti-eccentricity pressed piston rod connection device of unguided slide block type hydraulic press |
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| Publication number | Publication date |
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| CN102000748A (en) | 2011-04-06 |
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Granted publication date: 20120530 Termination date: 20211021 |
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