CN102865837A - Drift bullet buffering device of pneumatic drifter - Google Patents
Drift bullet buffering device of pneumatic drifter Download PDFInfo
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- CN102865837A CN102865837A CN2012103653570A CN201210365357A CN102865837A CN 102865837 A CN102865837 A CN 102865837A CN 2012103653570 A CN2012103653570 A CN 2012103653570A CN 201210365357 A CN201210365357 A CN 201210365357A CN 102865837 A CN102865837 A CN 102865837A
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- latus rectum
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Abstract
The invention relates to a drift bullet buffering device of a pneumatic drifter, and belongs to equipment for detecting inner diameter and straightness of steel pipes. The drift bullet buffering device is used for drifting of steel pipes. A buffer head of the drift bullet buffering device is positioned at the back of a magazine, and an exhaust port is arranged on the inner wall of the front of the magazine. When the front end of a drift bullet exceeds the exhaust port in running, a semi-closed cavity is formed between the drift bullet and a magazine hanger inner cavity, then the drift bullet is decelerated greatly, momentum is reduced, and the technical problem that existing pneumatic drifter buffering devices are high in destructive effect and short in service lives is solved. The drift bullet buffering device is simple in structure and reliable in use. By cooperation of a detecting reset spring with low elasticity coefficient and a buffering spring with high elasticity coefficient, the drift bullet buffering device is applicable to reliably and accurately buffering, receiving and realizing in-place detection of drift bullets with remarkable difference between diameter and momentum.
Description
Technical field
The present invention relates to the checkout equipment of pipe diameter and linearity, is a kind of Pneumatic path drifting machine latus rectum bullet snubber assembly concretely.
Background technology
The latus rectum bullet of Pneumatic path drifting machine is several meters to more than ten meters to length under the effect of gaseous tension, and external diameter is extremely hundreds of millimeters steel pipe drift-diameters of tens of millimeters.The latus rectum bullet makes the latus rectum bullet receiving end of Pneumatic path drifting machine bear very large impulsive force.Chinese invention patent Granted publication CN 10042616 C " pneumatic drifter and path method " and " hydraulic pressure and pneumatic " the 3rd phase in 2007 " design of Pneumatic Pipe ThroughInner Diameter Machine and application ", disclosed Pneumatic path drifting machine adopted cylinder cushioning, and the latter also adds upper spring in the baffle plate both sides of snubber assembly cylinder.The existing common shortcoming of Pneumatic path drifting machine snubber assembly is not reduce the front momentum of latus rectum bullet bump, does not namely change the stroke speed of latus rectum bullet.Adopt the snubber assembly of cylinder buffering, cushion pad destroys more serious, and serviceable life is shorter; Adopt the snubber assembly of spring buffer, when the latus rectum diameter of steel tube changes greatly, also had the elastic force of the spring of buffer action, can not take into account the drawback of the latus rectum bullet that adapts to diameter and momentum difference great disparity.The exhausr port of existing Pneumatic path drifting machine reception cavity is only considered degassing function, is arranged on the rear end of latus rectum rifle.
Summary of the invention
The present invention will solve existing Pneumatic path drifting machine snubber assembly and exist destruction more serious, and the technical matters that serviceable life is shorter provides a kind of latus rectum bullet little, simple in structure to latus rectum bullet receiving end impulsive force, service-strong Pneumatic path drifting machine latus rectum bullet snubber assembly.
In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of Pneumatic path drifting machine latus rectum bullet snubber assembly, comprise the magazine of the suit latus rectum bullet of latus rectum bullet receiving end, and magazine is fixed in the magazine hanger, and buffer head is positioned at the back of magazine; Exhausr port is arranged on the inwall of front portion of magazine, when the operation front end of latus rectum bullet surpasses exhausr port, semiclosed chamber of formation between latus rectum bullet and the magazine hanger inner chamber.
The latus rectum bullet that is launched passes steel pipe, arrives at latus rectum bullet receiving end and enters magazine.The internal diameter of magazine with equated by the internal diameter of latus rectum steel pipe, according to standard, API standard for example, the external diameter of latus rectum bullet is than pipe diameter decimal millimeter.At latus rectum bullet receiving end, when the operation front end of latus rectum bullet surpasses exhausr port, semiclosed chamber of formation between latus rectum bullet and the magazine hanger inner chamber.So-called semiclosed chamber refers to that air wherein only has passage of slit between latus rectum bullet external diameter and the magazine internal diameter.Along with the latus rectum bullet advances, the air pressure in the semiclosed chamber raises rapidly, and the latus rectum bullet is formed a kind of reaction thrust, and the latus rectum bullet is a significant slowdown, and momentum reduces, and the latus rectum bullet after the deceleration weakens greatly to the impulsive force of buffer head, has prolonged the serviceable life of snubber assembly.The present invention is simple in structure, uses reliable.
Buffer head comprises buffer head main body, cushion pad and guide pole, and cushion pad is fixedly installed on the front end of buffer head main body, and guide pole is fixedly installed on the rear end of buffer head main body.
Buffer head can be with the buffer head main body, or with buffer head main body and cushion pad, or with buffer head main body and guide pole, or is applied in the snubber assembly of the present invention with the version of buffer head main body, cushion pad and guide pole.
The back of buffer head main body arranges buffer spring and detects back-moving spring.
Buffer spring is sleeved on the guide pole of buffer head body rear, and the rear end cap of the rear end in contact magazine hanger of buffer spring is reserved invalid compression travel between the rear end of the front end of buffer spring and buffer head main body; The front end of the rear end contact detection bar of buffer head main body detects back-moving spring and is sleeved on the test rod; Detect the rear end in contact rear end cap of back-moving spring, the boss of front end contact detection bar front end leans rear end in the buffer head main body with test rod; The elasticity coefficient of buffer spring is greater than the elasticity coefficient that detects back-moving spring; The detector switch that puts in place detects the position of test rod, judges the latus rectum result, and the signal that detects is delivered to control center, control center's control path drifting machine work.It is mobile backward that buffer head is impacted by the latus rectum bullet, moves behind the drive test rod.Compare with the latus rectum bullet that is used for the larger aperture steel pipe drift-diameter, the latus rectum bullet quality of smaller aperture due steel pipe drift-diameter is little, and the momentum during the contact buffer head is little.Usually, path drifting machine is to the steel pipe drift-diameter of plurality of specifications, model, and the diameter span of steel pipe is large, kind is more.In the existing snubber assembly that adopts spring buffer, satisfying large latus rectum bullet to buffer spring in the non-destructive situation, the little latus rectum bullet then impact compress amount to buffer spring is very little, can not form effective detection.The present invention adopts buffer spring and detects back-moving spring, and during installation, buffer spring is reserved certain invalid compression travel, has realized that big or small latus rectum bullet can both well cushion the detection that receives and put in place.When the little latus rectum bullet damping of shocks head of momentum, buffer head overcomes the resilient rear-moving that detects back-moving spring, detects back-moving spring after the stop of latus rectum bullet buffer head is resetted.In the practical application, mainly by the detection back-moving spring that sensitivity is higher, elasticity coefficient is less the little latus rectum bullet of momentum is cushioned the detection that receives and put in place.When the large latus rectum bullet damping of shocks head of momentum, buffer head at first overcomes the resilient rear-moving that detects back-moving spring,, and then also to overcome and move after buffer spring elastic force continues with after buffer spring contacts until buffer head, buffer spring and detect back-moving spring buffer head is resetted after the stop of latus rectum bullet.The larger buffer spring of the detection back-moving spring that sensitivity is higher, elasticity coefficient is less and elasticity coefficient cooperates, to the latus rectum bullet of diameter and momentum difference great disparity carry out reliably, buffering receives and puts detection in place accurately.Test rod and buffer head body portion body structure are convenient to maintenance and replacing to test rod.
Guide pole hole on guide pole and the rear end cap is slidingly matched, and the test rod hole on test rod and the rear end cap is slidingly matched.
The dead in line of guide pole and buffer head main body.Buffer spring is positioned at the center of buffer head, makes buffer head stressed evenly, not fragile.
The rear end of buffer head main body and the buffer head hole on the rear end cap are slidingly matched.Buffer head moves steadily.
Exhaust box is installed in the rear end of magazine hanger.Exhaust box reduces the impact noise of latus rectum and latus rectum bullet greatly, and condition of work is greatly improved.
There is air intake opening the rear end of magazine hanger, and air intake opening is communicated with inner chamber and the pressure gas source of magazine hanger.Snubber assembly of the present invention is suitable for the path drifting machine that the latus rectum bullet receiving end that latus rectum steel pipe two ends connect is identical with latus rectum bullet transmitting terminal structure, can both realize transmitting and receiving the latus rectum bullet equally.
Advantage of the present invention be exhausr port at the front end of magazine, after the front end of latus rectum bullet surpassed exhausr port, the latus rectum bullet was a significant slowdown, momentum reduces, and the impulsive force of buffer head is weakened greatly, has prolonged the serviceable life of buffer head.The present invention is simple in structure, uses reliable.The buffer spring that the detection back-moving spring that elasticity coefficient is less and elasticity coefficient are larger cooperates, and is suitable for the latus rectum bullet of diameter and momentum difference great disparity is carried out reliably, cushions accurately the detection that receives and put in place.
Description of drawings
The structural representation of one embodiment of the invention.
Embodiment
Accompanying drawings.
The snubber assembly of the present embodiment is used for a Pneumatic path drifting machine that uses compressed air-driven, the structure of path drifting machine magazine hanger 7, magazine 9 and the buffer head 6 etc. at steel pipe two ends is identical, can exchange work, magazine hanger 7 grades that are right-hand member are latus rectum bullet receiving end, it is again latus rectum bullet transmitting terminal, magazine hanger 7 grades of same left end are latus rectum bullet transmitting terminal, are again latus rectum bullet receiving ends.When magazine hanger 7 grades on right side were the receiving end of latus rectum bullet 11, magazine hanger 7 grades in left side were the transmitting terminals of latus rectum bullet 11, and when magazine hanger 7 grades on right side were the transmitting terminal of latus rectum bullet 11, magazine hanger 7 grades in left side were the receiving ends of latus rectum bullet 11.Only show among the figure that the right side is as the structures such as magazine hanger 7, magazine 9 and buffer head 6 of receiving end.
The left end of guide head, magazine 9 is fixedly connected with the right-hand member of magazine hanger 7.Inserted by the steel pipe right-hand member of latus rectum in the tapered hole of guide head left end among the figure, the steel pipe left end inserts in the tapered hole of left side guide head right-hand member, does not show among the figure by the steel pipe of latus rectum and left side guide head.The right-hand member of magazine 9 leaves the space that buffer head 6 is installed between the rear end cap 2 of i.e. rear end, and magazine hanger 7.The horizontal slide of magazine 9 and magazine hanger 7 off-centre, concentric with the steel pipe axis; The internal diameter of magazine 9 equals the internal diameter of steel pipe.Exhausr port 8 is positioned at minimum position on the inwall of the horizontal slide front portion of magazine 9.The buffer head 6 of the present embodiment comprises cushion pad, buffer head main body and guide pole, and the buffer head body front end is fixed with cushion pad, and the rear end is provided with guide pole, the dead in line of guide pole and buffer head main body.Buffer head hole and buffer head back body on rear end cap 2 left sides are slidingly matched.Guide pole sealing pass rear end cap 2, be slidingly matched with guide pole hole on the rear end cap 2.Buffer spring is sleeved on the guide pole, the left side of its rear end contact rear end cap 2, and front end and buffer head main body leave the gap.The front end of the rear portion contact detection bar 5 of the buffer head main body of guide pole below among the figure.The test rod back-end sealing pass rear end cap 2, be slidingly matched with test rod hole on the rear end cap 2.Detect back-moving spring and be sleeved on the test rod 5, its rear end contact rear end cap 2, the boss of front end contact detection bar 5 front ends detects back-moving spring test rod 5 is leaned rear portion in the buffer head main body.The elasticity coefficient of buffer spring is greater than the elasticity coefficient that detects back-moving spring.The rear end of test rod 5 is used in conjunction with the detector switch 4 that puts in place that is fixed on the rear end cap 2.The detector switch 4 that puts in place detects the position of test rod 5, judges the latus rectum result, and the signal that detects is delivered to control center, and control center's control path drifting machine work does not show control center among the figure.In the buffering course, behind the latus rectum bullet 11 contact cushion pads, detect back-moving spring compressed, test rod 5 is shifted to the right to the top of the detector switch 4 that puts in place, and the signal that the detector switch 4 that puts in place detects test rod 5 is the signal that puts in place of latus rectum bullet 11; In the situation without external force, test rod 5 resets under the effect that detects back-moving spring, and detector switch 4 no signals put in place.Exhaust box 12 is installed on the rear end cap 2, and exhaust box 12 is communicated with the buffer head hole.Air intake opening 1 on the rear end cap 2 is communicated with magazine hanger inner chamber and pressure gas source.Latus rectum bullet 11 front ends of the inner chamber of magazine shown in the figure, namely right-hand member has surpassed exhausr port 8, touches cushion pad, forms a semiclosed chamber between latus rectum bullet 11 and the rear end cap 2.The external diameter of latus rectum bullet 11 is than the little 3.2mm of internal diameter of magazine 9.
Claims (9)
1. Pneumatic path drifting machine latus rectum bullet snubber assembly comprises the magazine (9) of the suit latus rectum bullet (11) of latus rectum bullet receiving end, and magazine (9) is fixed in the magazine hanger (7), it is characterized in that buffer head (6) is positioned at the back of magazine (9); Exhausr port (8) is arranged on the inwall of front portion of magazine (9), when the operation front end of latus rectum bullet (11) surpasses exhausr port (8), semiclosed chamber of formation between latus rectum bullet (11) and the magazine hanger inner chamber.
2. Pneumatic path drifting machine latus rectum bullet snubber assembly according to claim 1, it is characterized in that buffer head (6) comprises buffer head main body, cushion pad and guide pole, cushion pad is fixedly installed on the front end of buffer head main body, and guide pole is fixedly installed on the rear end of buffer head main body.
3. Pneumatic path drifting machine latus rectum bullet snubber assembly according to claim 2 is characterized in that the back of buffer head main body arranges buffer spring and detects back-moving spring.
4. Pneumatic path drifting machine latus rectum bullet snubber assembly according to claim 3, it is characterized in that buffer spring is sleeved on the guide pole of buffer head body rear, the rear end cap (2) of the rear end in contact magazine hanger (7) of buffer spring is reserved invalid compression travel between the rear end of the front end of buffer spring and buffer head main body; The front end of the rear end contact detection bar (5) of buffer head main body detects back-moving spring and is sleeved on the test rod (5); Detect the rear end in contact rear end cap (2) of back-moving spring, the boss of front end contact detection bar (5) front end leans rear end in the buffer head main body with test rod (5); The elasticity coefficient of buffer spring is greater than the elasticity coefficient that detects back-moving spring; The detector switch (4) that puts in place detects the position of test rod (5), judges the latus rectum result, and the signal that detects is delivered to control center, control center's control path drifting machine work.
5. Pneumatic path drifting machine latus rectum bullet snubber assembly according to claim 4 is characterized in that the guide pole hole on guide pole and the rear end cap (2) is slidingly matched, and the test rod hole on test rod (5) and the rear end cap (2) is slidingly matched.
6. according to claim 4 or 5 described Pneumatic path drifting machine latus rectum bullet snubber assemblys, it is characterized in that the dead in line of guide pole and buffer head main body.
7. according to claim 2 or 3 or 4 described Pneumatic path drifting machine latus rectum bullet snubber assemblys, it is characterized in that the rear end of buffer head main body and the buffer head hole on the rear end cap (2) are slidingly matched.
8. exhaust box (12) is installed in the rear end that according to claim 1 or 4 described Pneumatic path drifting machine latus rectum bullet snubber assemblys, it is characterized in that magazine hanger (7).
9. according to claim 1 or 4 described Pneumatic path drifting machine latus rectum bullet snubber assemblys, it is characterized in that there is air intake opening (1) rear end of magazine hanger (7), air intake opening (1) is communicated with inner chamber and the pressure gas source of magazine hanger (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365357.0A CN102865837B (en) | 2012-09-27 | 2012-09-27 | Drift bullet buffering device of pneumatic drifter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365357.0A CN102865837B (en) | 2012-09-27 | 2012-09-27 | Drift bullet buffering device of pneumatic drifter |
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| Publication Number | Publication Date |
|---|---|
| CN102865837A true CN102865837A (en) | 2013-01-09 |
| CN102865837B CN102865837B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210365357.0A Active CN102865837B (en) | 2012-09-27 | 2012-09-27 | Drift bullet buffering device of pneumatic drifter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894198A (en) * | 2017-10-27 | 2018-04-10 | 重庆长安工业(集团)有限责任公司 | A kind of device of quick measurement irregularly-shaped hole internal diameter |
| CN109579749A (en) * | 2018-11-12 | 2019-04-05 | 重庆长安工业(集团)有限责任公司 | Special-shaped bore dia pneumatic detection device |
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| CN1825053A (en) * | 2006-03-29 | 2006-08-30 | 西安重型机械研究所 | Pneumatic path drifting machine and drifting method |
| CN200967122Y (en) * | 2006-11-20 | 2007-10-31 | 宝山钢铁股份有限公司 | Drifting gun for heavy caliber steel tube bidirectional drifter |
| CN201993047U (en) * | 2011-01-28 | 2011-09-28 | 晋西工业集团有限责任公司 | Civil anti-hail and rainfall-enhancement rocket recovery device |
| CN102620628A (en) * | 2012-03-27 | 2012-08-01 | 中冶辽宁德龙钢管有限公司 | Steel pipe drifter and method for realizing concentricity of steel pipe and drift diameter head |
| CN202836527U (en) * | 2012-09-27 | 2013-03-27 | 青岛恒基泰机电科技有限公司 | Diameter drifting bullet buffer device for pneumatic diameter drifting machine |
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2012
- 2012-09-27 CN CN201210365357.0A patent/CN102865837B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825053A (en) * | 2006-03-29 | 2006-08-30 | 西安重型机械研究所 | Pneumatic path drifting machine and drifting method |
| CN200967122Y (en) * | 2006-11-20 | 2007-10-31 | 宝山钢铁股份有限公司 | Drifting gun for heavy caliber steel tube bidirectional drifter |
| CN201993047U (en) * | 2011-01-28 | 2011-09-28 | 晋西工业集团有限责任公司 | Civil anti-hail and rainfall-enhancement rocket recovery device |
| CN102620628A (en) * | 2012-03-27 | 2012-08-01 | 中冶辽宁德龙钢管有限公司 | Steel pipe drifter and method for realizing concentricity of steel pipe and drift diameter head |
| CN202836527U (en) * | 2012-09-27 | 2013-03-27 | 青岛恒基泰机电科技有限公司 | Diameter drifting bullet buffer device for pneumatic diameter drifting machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894198A (en) * | 2017-10-27 | 2018-04-10 | 重庆长安工业(集团)有限责任公司 | A kind of device of quick measurement irregularly-shaped hole internal diameter |
| CN109579749A (en) * | 2018-11-12 | 2019-04-05 | 重庆长安工业(集团)有限责任公司 | Special-shaped bore dia pneumatic detection device |
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| Publication number | Publication date |
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| CN102865837B (en) | 2015-04-15 |
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Owner name: QINGDAO ZHONGRUITAI SOFT CONTROL TECHNOLOGY CO., L Free format text: FORMER OWNER: QINGDAO HENGJITAI TECHNOLOGY CO., LTD. Effective date: 20150908 |
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Effective date of registration: 20150908 Address after: Miao road Laoshan District 266061 Shandong city of Qingdao province 6-8 Patentee after: The Tai Ruan of Qingdao China and Sweden control techniques company limited Address before: Miao road Laoshan District 266061 Shandong city of Qingdao province from 6 to 8 Patentee before: Qingdao Hengjitai Technologies Corp., Ltd. |
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Address after: Miao road Laoshan District 266061 Shandong city of Qingdao province 6-8 Patentee after: Qingdao Ruitai mesnac Polytron Technologies Inc Address before: Miao road Laoshan District 266061 Shandong city of Qingdao province 6-8 Patentee before: The Tai Ruan of Qingdao China and Sweden control techniques company limited |
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Address after: 266109 Shandong city of Qingdao province high tech Zone Songyuan Road No. 17 Qingdao Industrial Technology Research Institute A1 District 403 room Patentee after: Qingdao Ruitai mesnac Polytron Technologies Inc Address before: Miao road Laoshan District 266061 Shandong city of Qingdao province 6-8 Patentee before: Qingdao Ruitai mesnac Polytron Technologies Inc |
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