CN102978374B - Vibratory stress relief device for autoclave body - Google Patents
Vibratory stress relief device for autoclave body Download PDFInfo
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- CN102978374B CN102978374B CN201210540035.5A CN201210540035A CN102978374B CN 102978374 B CN102978374 B CN 102978374B CN 201210540035 A CN201210540035 A CN 201210540035A CN 102978374 B CN102978374 B CN 102978374B
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- stress relief
- autoclave
- kettle
- vibrator
- caliper
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Abstract
The invention discloses a vibratory stress relief device for an autoclave body, and relates to the technical field of machining equipment manufacturing. The vibratory stress relief device comprises a vibration exciter, wherein the lower end of the vibration exciter is provided with two lug plates extending sideways; each of the two lug plates of the vibration exciter is provided with an arc-shaped clamp body; the upper end of the clamp body is provided with a screw rod through a thread; and an upper backing plate and a lower backing plate are arranged between the bottom surface where the lug plates are arranged and the clamping surface of the clamp bodies. Compared with the prior art, the invention can solve the problems of high investment of stress relief equipment, high stress relief cost and difficulty in performing thermal stress relief treatment on equipment installation site in the existing autoclave body thermal stress relief; the thermal stress relief cost of the autoclave body is reduced by 98%, and the investment of the stress relief equipment is lowered by 80%; and two-year follow-up inspection shows that none of 100 autoclave bodies subjected to vibratory stress relief treatment has quality problems of deformation and cracking.
Description
Technical field
The present invention relates to machining equipment manufacturing technology field, especially a kind of device for carrying out vibration stress relief treatment to autoclave kettle.
Background technology
Autoclave is the large-sized steel horizontal pressure vessel equipment for carrying out steam press maintenance to the building product such as New Type Light-weight Wall Material, concrete tubular pile.Autoclave comprises kettle and is connected to the kettle cover at these kettle two ends, and kettle is made up of cylindrical shell and the toothed round flange being welded on these cylindrical shell two ends, has multiple bearing at the lower weld of described cylindrical shell.Autoclave in use bears repeated stress, and the welding residual stress superposition of these stress and kettle can produce lower column defects: the weld seam between cylindrical shell and round flange, the weld seam between cylindrical shell and bearing crack and round flange generation ovalizing deflection.
Autoclave belongs to pressurized vessel, this device fabrication requires to remove welding stress, in existing technical scheme, the destressing process of the kettle of autoclave adopts thermal life process, but the kettle of autoclave is large-scale workpiece, length has tens of rice, weight has tens of ton, and sometimes also need to carry out assembly welding at delivery scene, if kettle adopts thermal life process, not only need to build large-scale thermal life stove, and the expense of thermal life process is also very high, the kettle of this external delivery site welding technology, some situation also cannot carry out overall thermal ageing treatment.
" application of vibration aging technology on autoclave pressurized vessel " that the present inventor Yang Sheng cutting edge of a knife or a sword etc. is delivered is shown in the 72-73 that delivers of " electromechanical engineering technology " the 35th volume the 4th phase, 89 pages, disclose the application apparatus of a kind of vibration aging technology on pressurized vessel, this autoclave cylindrical shell vibration ageing device comprises vibrator, and the both sides of vibrator adopt two arc calipers to be fixed in the inner tube wall place of autoclave round flange, and the publication number of the present inventor is CN102717346A, publication date is that the Chinese patent " fixture " on October 10th, 2012 discloses a kind of fixture, this is specifically had arc caliper and is installed on the screw rod on caliper by screw thread, use a boosting-rod, through the through hole of screw head, tighten screw rod with regard to rotatable, thus easily vibrator is fastened on rigidly and is shaken on part, therefore existing existing vibration stress relief treatment vibration aging technology being applied to autoclave kettle, replaces the thermal life process of autoclave kettle, solves that thermal life facility investment is large, timeliness cost is high and cannot process a difficult problem for delivery site welding technology kettle, but present used device autoclave kettle being carried out to oscillating aging, be all as above-mentioned article and patent introduced, the both sides of vibrator adopt two arc calipers to be fixed in the inner tube wall place of autoclave round flange, the fixing means of this vibrator, inner tube wall due to autoclave round flange is circular arc, vibrator can not be fastened on the inner tube wall place of autoclave round flange rigidly, easily occur loosening when resonating, thus make the effect of vibration stress relief of autoclave kettle not reach technical requirements, because autoclave uses as a kind of pressurized vessel, if oscillating aging does not reach technical requirements, then may there is the serious accidents such as blast.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of autoclave kettle vibration ageing device, this vibration ageing device can solve existing kettle adopt thermal life to cause timeliness facility investment is large, timeliness cost is high and equipment erecting stage is difficult to adopt the problem of thermal life process.
The technical scheme that technical solution problem of the present invention adopts is: this autoclave kettle vibration ageing device includes vibrator, there are two pieces of otic placodes stretched out to side described vibrator lower end, two pieces of otic placodes of described vibrator are equipped with arc caliper, and described caliper upper end is coated with screw rod by screw thread; Upper padding plate and lower bolster is provided with between the placement bottom surface of described otic placode and the clamping face of described caliper; The bottom surface of described upper padding plate is convex arc surface; The end face of described lower bolster is concaved circular cambered surface.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, owing to being provided with at kettle round flange inner tube wall the upper padding plate that bottom surface is convex arc surface, it is concaved circular cambered surface lower bolster that the round flange wall of the outer-rotor that upper padding plate is corresponding is provided with end face, on these two pieces, lower bolster, just constitute one and there is the parallel clamping face in two sides, by caliper, vibrator is rigidly fixed in round flange inner tube wall place, in vibration stress relief treatment process, vibrator can not loosen, the parameter stabilities such as the rotating speed of oscillating aging equipment and acceleration, best effect of vibration stress relief can be reached, the welding residual stress of kettle can be eliminated effective and rapidly, achieve the application of vibration aging technology on kettle, the thermal life cost of autoclave kettle can be reduced by 98%, thermal life facility investment reduces by 80%.
2, due to can autoclave kettle vibration ageing device, be transported to delivery assembly welding on-the-spot, vibration stress relief treatment is carried out to the kettle of site welding technology, therefore, can solve existing kettle adopt thermal life to cause timeliness facility investment is large, timeliness cost is high and equipment erecting stage is difficult to adopt the problem of thermal life process.
3, agree to through designing unit and supervision and inspection institute, the present invention is adopted to carry out vibration stress relief treatment to 100 kettlies, and carry out the follow-up investigations of 2 years, all do not found the weld seam between cylindrical shell and round flange, weld seam between cylindrical shell and bearing cracked the phenomenon with round flange generation ovalizing deflection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the partial enlarged drawing at the A place of Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the vertical view of Fig. 2.
Number in the figure illustrates: vibrator 1, otic placode 1-1, screw rod 2, caliper 3, upper padding plate 4, lower bolster 5, rubber pad 6, oscillation pickup 7, kettle 8.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Kettle 8 is as shown in Figure 1 made up of cylindrical shell and the toothed round flange being welded on these cylindrical shell two ends, has multiple bearing at the lower weld of cylindrical shell; The large-scale workpiece that kettle 8 is in the present embodiment diameters is 2000 millimeters, length is 30938 millimeters, weight is 28 tons, is welded with a bearing in the bottom of cylindrical shell every 3500 millimeters.
Autoclave kettle vibration ageing device as shown in Figure 2, Figure 3 and Figure 4, this autoclave kettle vibration ageing device includes vibrator 1, the otic placode 1-1 that vibrator 1 lower end has two pieces to stretch out to side, two pieces of otic placode 1-1 of vibrator 1 are equipped with arc caliper 3, and caliper 3 upper end is coated with screw rod 2 by screw thread; Be provided with upper padding plate 4 and lower bolster 5 between the placement bottom surface of otic placode 1-1 and the clamping face of caliper 3, the bottom surface of upper padding plate 4 is convex arc surface; The end face of lower bolster 5 is concaved circular cambered surface.
During work, by the bearing of kettle 8 in being horizontally disposed with, be pad respectively between the bearing at 7000 millimeters of places and ground to fill 2 pieces of rubber pads 6 apart from cylindrical shell two ends distance, rubber pad 6 length is 500 millimeters, and wide is 200 millimeters, and height is 100 millimeters; The convex arc surface of upper padding plate 4 is placed in the round flange inner tube wall place of cylindrical shell one end down, the placement bottom surface of vibrator 1 otic placode 1-1 is placed in the end face of upper padding plate 4, two pieces caliper 3 is clamped in respectively on the wall of the outer-rotor bottom both sides otic placode 1-1 end face and round flange; Regulate the screw rod 2 of caliper 3 upper end, lower bolster 5 concaved circular cambered surface is placed between wall of the outer-rotor bottom round flange and the clamping face of caliper 3 upward, by the screw rod 2 of tightening caliper 3 upper end, vibrator 1 is rigidly fixed in the inner tube wall place of round flange, oscillation pickup 7 is placed on the wall of the outer-rotor place at the round flange top radially arranged with vibrator 1.Start vibrator 1, under oscillating aging frequency, vibrate 30 minutes, complete the oscillating aging to this kettle 8.
Owing to being provided with at kettle 8 round flange inner tube wall the upper padding plate 4 that bottom surface is convex arc surface, the round flange wall of the outer-rotor that upper padding plate 4 is corresponding is provided with the lower bolster 5 that end face is concaved circular cambered surface, this two pieces of upper padding plates 4 and lower bolster 5, just constitute one and there is the parallel clamping face in two sides, by caliper 3, vibrator 1 is rigidly fixed in round flange inner tube wall place, in vibration stress relief treatment process, vibrator 1 can not loosen, the parameter stabilities such as the rotating speed of oscillating aging equipment and acceleration, best effect of vibration stress relief can be reached, the welding residual stress of kettle 8 can be eliminated effective and rapidly, achieve the application of vibration aging technology on kettle 8.If carry out thermal life to the kettle 8 of the present embodiment, expense needs 1.4 ten thousand yuan, and a large-scale thermal life stove will be built, investment cost is no less than 1,000,000 yuan, but its oscillating aging expense only needs 560 yuan, a set of autoclave kettle vibration ageing device, investment cost is no more than 200,000 yuan, therefore the present invention can reduce by 98% the timeliness cost of kettle 8, and thermal life facility investment reduces by 80%.Also autoclave kettle vibration ageing device, delivery assembly welding can be transported to on-the-spot, vibration stress relief treatment carried out to the kettle 8 of site welding technology.
Agree to through designing unit and supervision and inspection institute, the present invention is adopted to carry out vibration stress relief treatment to 100 kettlies 8, and carry out the follow-up investigations of 2 years, all do not found the weld seam between cylindrical shell and round flange, weld seam between cylindrical shell and bearing cracked the phenomenon with round flange generation ovalizing deflection.
Claims (1)
1. an autoclave kettle vibration ageing device, include vibrator (1), there are two pieces of otic placodes stretched out to side (1-1) described vibrator (1) lower end, two pieces of otic placodes (1-1) of described vibrator (1) are equipped with arc caliper (3), and described caliper (3) upper end is coated with screw rod (2) by screw thread; It is characterized in that: between the placement bottom surface of described otic placode (1-1) and the clamping face of described caliper (3), be provided with upper padding plate (4) and lower bolster (5); The bottom surface of described upper padding plate (4) is convex arc surface; The end face of described lower bolster (5) is concaved circular cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540035.5A CN102978374B (en) | 2012-12-14 | 2012-12-14 | Vibratory stress relief device for autoclave body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210540035.5A CN102978374B (en) | 2012-12-14 | 2012-12-14 | Vibratory stress relief device for autoclave body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102978374A CN102978374A (en) | 2013-03-20 |
| CN102978374B true CN102978374B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210540035.5A Expired - Fee Related CN102978374B (en) | 2012-12-14 | 2012-12-14 | Vibratory stress relief device for autoclave body |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202246777U (en) * | 2011-10-08 | 2012-05-30 | 广西大学 | Vibratory stress relief device for low and medium frequency shaft parts |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8809984D0 (en) * | 1988-04-27 | 1988-06-02 | Yang T H | Forcible type c-type clamp with pre-stress packing face |
| US6726193B1 (en) * | 2001-05-23 | 2004-04-27 | Howard Preston Yates | Quick position clamp and vise |
| CN201058413Y (en) * | 2007-04-18 | 2008-05-14 | 纬泰机械(上海)有限公司 | C-type clamp |
| CN201430047Y (en) * | 2009-04-22 | 2010-03-24 | 南京航空航天大学 | Permanent magnetic non-contact exciter |
| CN202317429U (en) * | 2011-10-27 | 2012-07-11 | 中冶南方(武汉)威仕工业炉有限公司 | Vibratory welding device for alloy weldment |
| CN102717346A (en) * | 2012-06-26 | 2012-10-10 | 南宁市神华振动时效技术研究所 | Fixture |
| CN202968655U (en) * | 2012-12-14 | 2013-06-05 | 南宁市神华振动时效技术研究所 | Kettle body vibration aging device of still kettle |
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2012
- 2012-12-14 CN CN201210540035.5A patent/CN102978374B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202246777U (en) * | 2011-10-08 | 2012-05-30 | 广西大学 | Vibratory stress relief device for low and medium frequency shaft parts |
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| CN102978374A (en) | 2013-03-20 |
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