CN104368604A - Novel ejector rod loose joint of perforation unit - Google Patents
Novel ejector rod loose joint of perforation unit Download PDFInfo
- Publication number
- CN104368604A CN104368604A CN201410610394.2A CN201410610394A CN104368604A CN 104368604 A CN104368604 A CN 104368604A CN 201410610394 A CN201410610394 A CN 201410610394A CN 104368604 A CN104368604 A CN 104368604A
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- loose joint
- perforation unit
- face
- conical surface
- pin
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Abstract
The invention discloses a novel ejector rod loose joint of a perforation unit. The novel ejector rod loose joint of the perforation unit comprises a conical face at the front end, a base in the middle and a screw rod at the rear end, the middle of the front end face of the conical face extends backwards to form a blind hole, a regular triangle shaft is arranged in the blind hole, the width of the angles of the regular triangle ranges from 3 mm to 6 mm, three pin bushes are evenly arranged on the side face of the conical face, locking pins are arranged in the pin bushes, the height of the locking pins is 1-3 mm greater than the thickness of the wall of the conical face, a T-shaped groove is formed in the side face of the base, a long-strip-shaped kidney-shaped hole is formed in the T-shaped groove, a shifting rod extends into the kidney-shaped hole to be connected with the shaft, and the front end face of the conical face is connected with an end cover through a bolt. An ejector head and the ejector rod loose joint are locked at more than two points, the coaxiality of the ejector head and the ejector rod loose joint is better ensured, the ejector head can be locked and released only by shifting the shifting rod, the field operation action of workers is simplified, the production efficiency is improved, and labor intensity of workers is relieved.
Description
Technical field
The invention belongs to frame for movement technical field, be specifically related to the loose joint of a kind of perforation unit Novel mandril.
Background technology
The perforation unit of present seamless steel tube production chain is online except part adopts to be come directly towards except automatic-exchanging system, what major part unit adopted is the top connected mode (part uses the unit of less top owing to still adopting the mode be threaded by space constraint) that taper (or cylindrical) handle adds alignment pin, and the major defect of this connected mode is:
(1) this more changing device split shed pin Yin Gaowen scorch yielding, each need more to renew split pin when changing top, setting circle pin also easily weares and teares, and increases the expense of consumable accessory;
(2) come directly towards between loose joint and push rod loose joint and have relative motion, the time has grown the wearing and tearing that can cause associated part, easily occurs burr, causes dismounting difficulty;
(3) because top caudal peduncle is realized by two straight pins be arranged symmetrically with the locking coordinated between push rod loose joint, in order to convenient disassembly, use alignment pin diameter compared with push rod loose joint pin-and-hole and top loose joint half slot diameter all smaller, such top is in use easy to occur that top locking is not enough, cause top axis and push rod axial offset, have a strong impact on finished product wall thickness accuracy;
(4) top must install caudal peduncle additional when producing, and add material and mach expenditure of time, come directly towards as consumable accessory, cost consumption is huge;
For do not adopt top automatic-exchanging system unit how both to have ensured come directly towards convenient disassembly, ensure again come directly towards assembly quality, but also the manufacturing cost that will reduce top is researcher need study problem.
Summary of the invention
For solving the problem, the invention discloses the loose joint of a kind of perforation unit Novel mandril, utilizing an active section to be the axle of approximate equilateral triangle, when this axle rotates to diverse location, realize the location to bearing pin, thus reaching the object to top locking and release.
For achieving the above object, technical scheme of the present invention is as follows:
The loose joint of a kind of perforation unit Novel mandril, it is characterized in that: the screw rod comprising the conical surface of front end, middle pedestal, rear end, extend back in the middle of the front end face of the described conical surface and be provided with blind hole, the axle of equilateral triangle is provided with in blind hole, the width at equilateral triangle angle is 3-6mm, the side of the conical surface is evenly provided with 3 guidees, lock pin is provided with in guide, the wall thickness height 1-3mm of the aspect ratio conical surface of described lock pin, pedestal side is provided with T-slot, be provided with the mounting hole of strip in T-slot, driving lever stretches in mounting hole and is connected with axle, and the front end face of the conical surface is bolted end cap.
As a modification of the present invention, the number of described lock pin is identical with the limit number of axle.
As a modification of the present invention, be provided with horizontal groove in described mounting hole, locking plate is enclosed within driving lever, is stuck in described groove.
As a modification of the present invention, described driving lever is provided with aperture, and split pin is inserted in aperture.
As a modification of the present invention, described split pin is the split pin of safety pin type.
As a modification of the present invention, the head of described lock pin is semicircle.
As a modification of the present invention, the height of head of described driving lever lower than pedestal cylindrical, higher than mounting hole outer surface.
The invention has the beneficial effects as follows:
One perforation unit Novel mandril of the present invention loose joint, owing to realizing top and the locking of push rod loose joint more than 2, better can ensure to come directly towards the axiality with push rod loose joint, thus better ensure the wall thickness accuracy of steel pipe; Produce burr owing to avoiding between top and loose joint, avoid the situation coming directly towards the dismounting difficulty that may occur; When top produces, need not install caudal peduncle again, a large amount of material consumption decreased, simplifies top manufacturing procedure; Can greatly reduce top manufacturing cost; Decrease the consumption as consumable accessory setting circle pin and split pin; Locking to top and release can be realized due to a driving lever only need be stirred, simplify the execute-in-place action of workman, the raising of enhancing productivity and alleviate the labour intensity of workman.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is for being top view of the present invention.
Reference numerals list:
1, bolt, 2, end cap, 3, lock pin, 4, guide, 5, driving lever, 6, locking plate, 7, axle, 8, pedestal, 9, split pin, 10, screw rod, 11, the conical surface, 12, aperture, 13, T-slot, 14, mounting hole, 15, groove.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, following detailed description of the invention should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.
As shown in the figure, one perforation unit Novel mandril of the present invention loose joint, comprise the conical surface 11 of front end, middle pedestal 8, the screw rod 10 of rear end, extend back in the middle of the front end face of the described conical surface 11 and be provided with blind hole, the axle 7 of equilateral triangle is provided with in blind hole, the width at equilateral triangle angle is 3-6mm, the side of the conical surface 11 is evenly provided with 3 guidees 4, lock pin 3 is provided with in guide 4, the wall thickness height 1-3mm of the aspect ratio conical surface 11 of described lock pin 3, pedestal 8 side is provided with T-slot 13, the mounting hole 14 of strip is provided with in T-slot 13, driving lever 5 stretches in mounting hole 14 and is connected with axle 7, the front end face of the conical surface 11 connects end cap 2 by bolt 1.
During use, top endoporus and push rod loose joint of the present invention adopt cone to be connected, and the conical surface 11 of push rod loose joint is arranged symmetrically with the lock pin 3 that three (or more) can be movable, lock pin 3 is when locking position, lock pin 3 is stuck in the cannelure on the inner conical surface of top, and guarantee top is fixing with loose joint relative position, realizes the locking come directly towards, wherein the number of lock pin 3 is identical with the limit number of axle 7, axle 7 is triangle, and lock pin 3 is 3, and axle 7 is pentagon, lock pin 3 is 5, by that analogy.
Stirring driving lever 5 is with moving axis 7 can rotate to an angle (60 ° is best angle), the cross section that axle 7 contacts with bearing pin 3 is approximate equilateral triangle (or approximate regular polygon), there is one fixed width at equilateral triangle angle, when bearing pin 3 contacts with the angle (one section of circular arc) of the equilateral triangle (or regular polygon) on the cross section of axle 7, bearing pin 3 is outwards mobile by top, is in locking position; When bearing pin 3 contacts with the limit of the equilateral triangle (or regular polygon) on the cross section of axle 7, bearing pin 3 can move inward, and its end face lower than the loose joint conical surface, can realize the release to top locking.
For preventing causing driving lever 5 to rotate because impacting, bearing pin 3 is caused to move, lose locking effect, when driving lever 5 is in locking position, horizontal groove 15 is provided with in mounting hole 14, centre is bored foraminate locking plate 6 to be enclosed within driving lever 5 by aperture, be stuck in the groove 15 of loose joint, ensure that driving lever 5 can not rotate; In the aperture of driving lever 5, insert safety pin type split pin 9 simultaneously, prevent locking plate 6 from getting loose.
During due to top work, there are violent impact and motion, for ensureing the stable of structure, reach anti-loosing effect, what adopt between driving lever 5 and axle 7 is a kind of structure of similar Tenon, the head of wherein said lock pin 3 is semicircle, be convenient to clamping, the height of head of driving lever 5 lower than pedestal 8 cylindrical, higher than mounting hole 14 outer surface, freely can either stir, pedestal 8 surface can not be protruded again and hurt sb.'s feelings.
Perforation unit Novel mandril of the present invention loose joint, owing to realizing top and the locking of push rod loose joint more than 2, better can ensure to come directly towards the axiality with push rod loose joint, thus better ensure the wall thickness accuracy of steel pipe; Produce burr owing to avoiding between top and loose joint, avoid the situation coming directly towards the dismounting difficulty that may occur; When top produces, need not install caudal peduncle again, a large amount of material consumption decreased, simplifies top manufacturing procedure; Can greatly reduce top manufacturing cost; Decrease the consumption as consumable accessory setting circle pin and split pin; Locking to top and release can be realized due to a driving lever only need be stirred, simplify the execute-in-place action of workman, the raising of enhancing productivity and alleviate the labour intensity of workman.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also comprises the technical scheme be made up of above technical characteristic.
Claims (7)
1. perforation unit Novel mandril loose joint, it is characterized in that: the screw rod comprising the conical surface of front end, middle pedestal, rear end, extend back in the middle of the front end face of the described conical surface and be provided with blind hole, the axle of equilateral triangle is provided with in blind hole, the width at equilateral triangle angle is 3-6mm, the side of the conical surface is evenly provided with 3 guidees, lock pin is provided with in guide, the wall thickness height 1-3mm of the aspect ratio conical surface of described lock pin, pedestal side is provided with T-slot, be provided with the mounting hole of strip in T-slot, driving lever stretches in mounting hole and is connected with axle, and the front end face of the conical surface is bolted end cap.
2. one perforation unit Novel mandril according to claim 1 loose joint, is characterized in that: the number of described lock pin is identical with the limit number of axle.
3. one perforation unit Novel mandril according to claim 1 loose joint, it is characterized in that: be provided with horizontal groove in described mounting hole, locking plate is enclosed within driving lever, is stuck in described groove.
4. one perforation unit Novel mandril according to claim 3 loose joint, it is characterized in that: described driving lever is provided with aperture, split pin is inserted in aperture.
5. one perforation unit Novel mandril according to claim 4 loose joint, is characterized in that: described split pin is the split pin of safety pin type.
6. a kind of perforation unit Novel mandril loose joint according to claim 1 or 5, is characterized in that: the head of described lock pin is for semicircle.
7. a kind of perforation unit Novel mandril loose joint according to claim 1 or 5, is characterized in that: the height of head of described driving lever lower than pedestal cylindrical, higher than mounting hole outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610394.2A CN104368604B (en) | 2014-11-04 | 2014-11-04 | A kind of perforation unit push rod loose joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610394.2A CN104368604B (en) | 2014-11-04 | 2014-11-04 | A kind of perforation unit push rod loose joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104368604A true CN104368604A (en) | 2015-02-25 |
| CN104368604B CN104368604B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410610394.2A Active CN104368604B (en) | 2014-11-04 | 2014-11-04 | A kind of perforation unit push rod loose joint |
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| Country | Link |
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| CN (1) | CN104368604B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238142A (en) * | 2020-09-03 | 2021-01-19 | 鑫鹏源(聊城)智能科技有限公司 | Top ejector rod assembly with novel cooling mode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149396A (en) * | 1976-11-16 | 1979-04-17 | Wean United, Inc. | Mandrel holding and releasing means |
| JPH11169916A (en) * | 1997-12-12 | 1999-06-29 | Sumitomo Metal Ind Ltd | Device for attaching and detaching piercer plug |
| US20080134742A1 (en) * | 2004-03-11 | 2008-06-12 | Tomio Yamakawa | Seamless tube piercing/rolling plug, and seamless tube producing method using same |
| CN201799449U (en) * | 2010-09-09 | 2011-04-20 | 无锡西姆莱斯石油专用管制造有限公司 | Locking ejector head device |
| CN102441571A (en) * | 2011-12-14 | 2012-05-09 | 烟台宝钢钢管有限责任公司 | Pin-lift device for tapered roller piercers |
| CN102527725A (en) * | 2012-03-12 | 2012-07-04 | 常州宝菱重工机械有限公司 | Connection device for push head and push rod of perforating machine |
| CN204208891U (en) * | 2014-11-04 | 2015-03-18 | 江苏华菱锡钢特钢有限公司 | The loose joint of a kind of perforation unit Novel mandril |
-
2014
- 2014-11-04 CN CN201410610394.2A patent/CN104368604B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149396A (en) * | 1976-11-16 | 1979-04-17 | Wean United, Inc. | Mandrel holding and releasing means |
| JPH11169916A (en) * | 1997-12-12 | 1999-06-29 | Sumitomo Metal Ind Ltd | Device for attaching and detaching piercer plug |
| US20080134742A1 (en) * | 2004-03-11 | 2008-06-12 | Tomio Yamakawa | Seamless tube piercing/rolling plug, and seamless tube producing method using same |
| CN201799449U (en) * | 2010-09-09 | 2011-04-20 | 无锡西姆莱斯石油专用管制造有限公司 | Locking ejector head device |
| CN102441571A (en) * | 2011-12-14 | 2012-05-09 | 烟台宝钢钢管有限责任公司 | Pin-lift device for tapered roller piercers |
| CN102527725A (en) * | 2012-03-12 | 2012-07-04 | 常州宝菱重工机械有限公司 | Connection device for push head and push rod of perforating machine |
| CN204208891U (en) * | 2014-11-04 | 2015-03-18 | 江苏华菱锡钢特钢有限公司 | The loose joint of a kind of perforation unit Novel mandril |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238142A (en) * | 2020-09-03 | 2021-01-19 | 鑫鹏源(聊城)智能科技有限公司 | Top ejector rod assembly with novel cooling mode |
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| Publication number | Publication date |
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| CN104368604B (en) | 2016-06-29 |
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Address after: 214516 Xingang Avenue, Jingjiang Economic Development Zone, Taizhou City, Jiangsu Province Patentee after: Jingjiang Special Steel Co., Ltd. Address before: 214516 Xingang Avenue, Jingjiang Economic Development Zone, Taizhou City, Jiangsu Province Patentee before: JIANGSU WALIN-XIGANG SPECIAL STEEL CO., LTD. |
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