CN201415240Y - Dual-driven pushing type steel tube expanding device - Google Patents
Dual-driven pushing type steel tube expanding device Download PDFInfo
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- CN201415240Y CN201415240Y CN 200920005236 CN200920005236U CN201415240Y CN 201415240 Y CN201415240 Y CN 201415240Y CN 200920005236 CN200920005236 CN 200920005236 CN 200920005236 U CN200920005236 U CN 200920005236U CN 201415240 Y CN201415240 Y CN 201415240Y
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Abstract
The utility model relates to a dual-driven pushing type steel tube expanding device and an expanding technique, which belong to the field of steel tube process. The expanding device comprises two pushing bars, two sleeves, two expanding heads, a guide bar and a set of expanding blocks, two power cylinders are respectively installed at two ends of a main framework, movable active holding blocks areconnected with pistons of the power cylinders and the pushing bars, two groups of the movable active holding blocks are symmetrically installed on the left side and the right side, the two sleeves are symmetrically assembled on the left side and the right side, one ends of the sleeves are connected with the expanding blocks via T-shaped keys, the two pushing bars are arranged symmetrically on theleft side and the right side, one ends of the pushing bars are connected with the expanding heads, the pushing bars are arranged inside the sleeves, the two expanding heads are symmetrically and oppositely placed from left to right, one ends of the expanding heads are connected with the pushing bars, T-shaped grooves are disposed on inclined surfaces of the expanding heads and connected with thecorresponding expanding heads via head-expanded T-shaped keys, and the two expanding heads are connected via the guide bar. The expanding device has convenient operation and adjustment and safe working process, and is particularly adaptable to high-efficient expanding production of steel tubes with large tubular diameters, thick tubular walls and high materials.
Description
Technical field
The utility model dual-drive push-press type steel pipe expander belongs to the steel pipe manufacture field, particularly relates to a kind of longitudinal submerged arc welded pipe hole enlargement production technical field.
Background technology
Expanding machine utilizes the plasticity of metal, implement the segmentation hole enlargement and then reach tubing products bulging process purpose from tube chamber inside to body, it is a kind of guardian technique equipment that straight-line joint submerged arc welding tube is produced that is used for, and its effect is main to show both ways: by hole enlargement, improve the making precision of steel pipe; By hole enlargement, reduce the body internal stress, improve the safe in utilization of welded tube.The machinery expanding technology that present welded tube industry is adopted is a kind of " drawing formula " single segmentation hole enlargement production technology that expands.Production practices show that this " drawing formula " single segmentation machinery expanding technology that expands is not suitable for major diameter, the hole enlargement production of heavy wall, high material steel pipe greatly on structural design, be mainly reflected in following three aspects:
(1) " drawing formula " is single expands a segmentation machinery expanding principle as shown in Figure 1, and expanding on 9 has 8,10 two bottom surfaces, and wherein the area of bottom surface 8 is less.In the hole enlargement process to steel pipe 1, the hole enlargement system is actually the stress state that is in a kind of repeat, and very high to the safety coefficient requirement of drawing bar 6, its criticality safety size should adopt the large scale design in theory as far as possible.But in " drawing formula " hole enlargement system, for realizing moving radially of bloated piece 2, drawing bar 6 with expand 9 between utilize nut 11 to realize being connected, because of limited by structure space, the Cross section Design parameter of drawing bar 6 can only be chosen in less than the areal extent that expands a bottom surface 8, thereby be unfavorable for designing safely of drawing bar 6, in the hole enlargement process of major diameter, big heavy wall, high material steel pipe, the fatigue fracture of drawing bar 6 takes place easily.
(2) in the process of hole enlargement expand tube, as shown in Figure 1, " drawing formula " single drawing bar 6 that expands a machinery expanding system bears very big tension; System when playback, expand piece 2 and expand 9 between have locking phenomenon, in order to carry out release, drawing bar 6 must applied thrusts, and and have pulling force between drawing bar 6 matching used sleeve T shape keys 3 and the T-slot 4, produce tension at component inside.Therefore, in the course of work of whole " drawing formula " hole enlargement system, because sensitive components always is in tensile stress state, be unfavorable for bringing into play the advantage of structural material performance, add the existence of vulnerable components tapered sleeve 7, cause the hole enlargement system reliability poor, thereby be not suitable for the hole enlargement production of major diameter, big heavy wall, high material steel pipe.
(3) single design that expands of " drawing formula " hole enlargement technology, the workload that each segmentation hole enlargement is finished is very limited, operating efficiency is difficult to improve, to such an extent as to the accumulative total circulation hole enlargement frequency after the omnidistance hole enlargement of homogeneous tube is too much, therefore member also reduces its service life.This also is to cause " drawing formula " machinery expanding technology to be not suitable for the major reason of the hole enlargement production of major diameter, big heavy wall, high material steel pipe.
Summary of the invention
The utility model has been avoided weak point of the prior art, provides a kind of suitable major diameter, big wall thickness, high material steel pipe, efficient, safe dual-drive push-press type steel pipe expander and expanding technology.
The purpose of this utility model reaches by following measure, the dual-drive push-press type steel pipe expander is by two push strut, two sleeves, two are expanded head, a guide post, and the bloated piece of a cover constitutes, two actuator cylinders are installed in the two ends of mainframe respectively, removable activity is embraced piece and is connected actuator cylinder piston and push strut, and two groups of removable activities are embraced the piece left-right symmetry and installed, and the movable piece oil cylinder of embracing promotes removable activity and embraces piece and be connected with push strut with oil cylinder piston.Removable activity is embraced piece under the effect of control oil cylinder, and the unlatching and the closure of piece embraced in the realization activity, reaches simultaneously the purpose of holding, unclamping actuator cylinder piston and push strut tightly.
Two sleeve left-right symmetry configurations, sleeve one end links to each other with bloated piece by T type key, and sleeve one end is located by the rocking arm positioning framework, and two sleeves are realized interfix from the both sides of the piece that expands to the piece that expands respectively.On sleeve and end face that bloated piece is connected,, the radially T-slot of quantity such as offer according to bloated number of blocks.T-slot evenly distributes on the hoop of sleeve end face, keeps radially movable the connection by sleeve T shape key with bloated piece.
Two push strut are symmetrical set, push strut one end with expand head and be connected, the push strut other end is embraced piece by removable activity and is filled in while still alive with actuator cylinder and be connected, push strut is in sleeve, packing ring is arranged between push strut and the sleeve.Push strut runs through sleeve, and supports mutually by packing ring and sleeve.In the hole enlargement process, along with moving of the piston of actuator cylinder, push strut moves thereupon and transmits required drive.
Two are expanded a left-right symmetry and discharge setting relatively, and two are expanded head is that an anode expands head and a negative electrode expands head, expands first end and is connected with push strut, expand an inclined-plane and are provided with T type groove, and by expanding a T shape key and corresponding bloated piece connection, two expansions connect by guide post.Connect in the socket joint mode by guide post between the two expansion heads.Expand piece by T type key and T type groove, keep being connected with expansion head, sleeve; The mobile guide bar is inserted in and expands on the head, and sealing ring is arranged on the mobile guide bar and expands between the head.Expanding head plays a part in the hole enlargement process to bloated piece transferring power.Expanding a profile is positive multi-pyramid, and the terrace with edge surface is divided into side and bottom surface, and the side also is the terrace with edge inclined-plane; Upper bottom surface and bottom surface are divided in the terrace with edge bottom surface, and the area of bottom surface is bigger, are maintained fixed with push strut 32 to be connected.On each side of expanding head, offer a T-slot that connects upper and lower bottom surface along the side center line, the opening surface of T-slot overlaps with an expansion corresponding side surface.Expansion head of the present utility model has two, and one is that anode expands head, and another is that negative electrode expands head.Anode expands head and negative electrode expansion head keeps vertical socket joint to move relation by guide post.Anode expands head to be fixed guide post one end by screw thread, and the guide post other end stretches into negative electrode and expands an inner chamber, can expand an inner chamber at negative electrode and vertically move.Guide post plays guide effect in the process that the expansion head moves, and the output of control lubricating oil and additional.
T shape key is for setting up the member that removable connection is provided with between two members, T shape key is fixed on the piece that expands, according to the difference of the piece connecting object that expands, T shape key is divided into sleeve T shape key and expands two kinds on a T shape key, and sleeve T shape key expands head with anode respectively and negative electrode expands a supporting use.During hole enlargement, two cover sleeve T shape keys move radially in each self-corresponding sleeve radial slot, expand a T shape key and move at each self-corresponding expansion T-slot interior orientation, and when system playbacked, an expansion T-slot pulling was expanded a T shape key open bloated piece is drawn in.
The piece cross-sectional shape that expands is similar to the base and has certain thickness isosceles triangle, is a kind of direct member to steel pipe enforcement expansion, and the piece that expands flexibly connects with a sleeve and an expansion maintenance respectively by T-slot and T shape key.One cover the total identical of the included bloated number of blocks of piece and a single expansion side of expanding.All designed two frictional plane and a work cambered surface on each bloated piece, two frictional plane go up corresponding inclined-plane maintenance with anode expansion head and negative electrode expansion head respectively and contact with condition.When the life of two expansion hairs moved axially, the rubbing surface of the piece that expands can take place move radially relatively in the side (inclined-plane) of expanding head.When bloated piece work cambered surface contacts with the inwall of steel pipe, make steel pipe be touched part generation bulging.
Setting up procedure control device on the mainframe comprises that mainly the removable rocking arm of a rotary positioning mechanism, roller-way induction system, two bindiny mechanism, two rocking arm detent mechanisms, two hold up steady mechanism to form.
Rotary positioning mechanism mainly by the rotation positioning framework, go up the clamping oil cylinder, down the clamping oil cylinder, go up grip block and down grip block form, last clamping oil cylinder connects promotion and goes up grip block, following clamping oil cylinder connects promotion grip block down, last grip block and following grip block are clamped bloated piece, thereby control moving axially of whole equipment, assist the roller-way induction system to finish rotation.
Removable rocker arm body is mainly embraced piece oil cylinder and two removable rocking arms by a removable rocking arm connecting frame, two rocking arms and is embraced piece and form, two removable rocking arms are embraced piece and are installed on the removable rocking arm connecting frame, realize that actuator cylinder is connected with alternative between the push strut, and it is mobile before and after on guide rail to follow the actuator cylinder piston.
The rocking arm detent mechanism mainly is made up of a rocking arm positioning framework, two location armful piece oil cylinders, two location armful pieces, locatees the location of embracing piece oil cylinder connection control and embraces piece, locatees an armful piece and embraces and withstand sleeve, realizes the selective fixed bit function to sleeve.
Hold up steady mechanism mainly to hold up steady framework, two to hold up steady oil cylinder to form, hold up steady oil cylinder to be installed in and hold up on the steady framework, hold up steady oil cylinder to be mutually 120 degree angles, hold up steady oil cylinder flexible for two to the pushing equipment by one.In the process of expand tube, hold up steady mechanism mainly to prevent the unstability of equipment.
The roller-way induction system mainly comprises bearing platform, deflection oil cylinder, weld seam centering adjustment running roller, bracing frame, steel pipe conveying running roller and mainframe bearing platform.The bearing platform is set on the mainframe bearing platform, and the bearing platform is provided with bracing frame, and the bearing platform is provided with steel pipe and carries running roller, and the bearing platform is provided with weld seam centering and adjusts running roller.Weld seam centering on the roller-way induction system is adjusted running roller, steel pipe carries running roller, bracing frame in height to have the regulatory function of certain limit, can adapt to the hole enlargement production to the different size steel pipe; The pushing equipment relies on the spinfunction of roller-way induction system, realizes coming in and going out on mainframe; The roller-way induction system has the effect of support works device and steel pipe weight; The roller-way induction system has the function that vertically moves equipment and steel pipe.
When carrying out pipe expanding, steel pipe is enclosed within the sleeve on the dual-drive push-press type steel pipe expander fully, and two actuator cylinders load synchronously, two push strut drive and expand a same moved further, under of the effect of two sleeves, force the steel pipe bulging, thereby reach the purpose of hole enlargement expand tube the piece axial location that expands.
The utility model operation is easy to adjust, and course of work safety is particularly suitable for big caliber, the efficient hole enlargement production of wall thickness, high material steel pipe greatly.
Description of drawings
Accompanying drawing 1 is single segmentation machinery expanding theory structure schematic diagram that expands.
Accompanying drawing 2 is structural representations of dual-drive push-press type expander of the present utility model.
Accompanying drawing 3 is vertical views of accompanying drawing 2.
Accompanying drawing 4 is structural representations of dual-drive push-press type expander of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in accompanying drawing 2, accompanying drawing 3, the negative electrode of dual-drive push-press type expander of the present utility model expands head and anode expansion head is the center with rotation positioning framework 19, is symmetrical set.In the hole enlargement process, the big bottom surface of expanding head is connected with push strut 32, and bloated piece can be by expanding T type key slip and tangle the bloated piece that is positioned at an expansion downside in anode expands the inclined-plane T type groove that head and negative electrode expand.Two push strut 32 are the center with rotation positioning framework 19, about be coaxially set, push strut 32 1 ends with expand the big bottom surface of head and be connected, the other end is connected with actuator cylinder 12 maintenance alternatives by removable rocking arm bindiny mechanism; Two sleeves are the center with rotation positioning framework 19, about be coaxially set, each sleeve one end is provided with T-slot, keeps radially flexibly connecting by sleeve T shape key and bloated piece, the sleeve other end is connected with rocking arm positioning framework 15, the realization axial location.Negative electrode expansion head, anode expansion head, guide post, push strut 32, sleeve 35, actuator cylinder 12 keep coaxial line in assembling process.Setting up procedure control device on the mainframe 23 comprises that mainly the removable rocking arm of a rotary positioning mechanism, roller-way induction system, two bindiny mechanism, two rocking arm detent mechanisms, two hold up steady mechanism to form.Rotary positioning mechanism mainly by rotation positioning framework 19, go up clamping oil cylinder 37, down clamping oil cylinder 41, go up grip block 39 and down grip block 40 form, last clamping oil cylinder 37 connects promotion and goes up grip block 39, following clamping oil cylinder 41 connects promotion grip block 40 down, last grip block 39 and following grip block 40 are clamped the piece 64 that expands, thereby control moving axially of whole equipment, assist the roller-way induction system to finish rotation.Removable rocker arm body is mainly embraced piece oil cylinder 31 and two removable rocking arms by a removable rocking arm connecting frame 13, two rocking arms and is embraced piece 30 and form, two removable rocking arms are embraced piece and are installed on the removable rocking arm connecting frame, realize that actuator cylinder 12 is connected with alternative between the push strut 32, and it is mobile to follow actuator cylinder piston front and back on guide rail 43.The rocking arm detent mechanism mainly by a rocking arm positioning framework 15, two location embrace piece oil cylinder 33, two location are embraced a piece 34 and are formed, the location is embraced the location of piece oil cylinder 33 connection controls and is embraced piece 34, the location is embraced piece and is embraced and withstand sleeve 35, realizes the selective fixed bit function to sleeve 35.Hold up steady mechanism mainly to hold up steady framework 17, two to hold up steady oil cylinder 18 to form, be fixed on the mainframe crossbeam 16, hold up steady oil cylinder to be installed in and hold up on the steady framework 17, hold up steady oil cylinder to be mutually 120 degree angles, hold up steady oil cylinder flexible for two to the pushing equipment by one.In the process of expand tube, hold up steady mechanism mainly to prevent the unstability of equipment.The roller-way induction system mainly comprises bearing platform 45, deflection oil cylinder 20, weld seam centering adjustment running roller 49, bracing frame 50, steel pipe conveying running roller 48 and mainframe bearing platform 22.Bearing platform 45 is set on the mainframe bearing platform 22, and bearing platform 45 is provided with bracing frame 50, and bearing platform 45 is provided with steel pipe and carries running roller 48, and bearing platform 45 is provided with weld seam centering and adjusts running roller 49.Weld seam centering on the roller-way induction system is adjusted running roller 49, steel pipe carries running roller 48, bracing frame 50 in height to have the regulatory function of certain limit, can adapt to the hole enlargement production to the different size steel pipe; The pushing equipment relies on the spinfunction of roller-way induction system, realizes coming in and going out on mainframe; The roller-way induction system has the effect of support works device and steel pipe weight; The roller-way induction system has the function that vertically moves equipment and steel pipe.Two actuator cylinders 12 are installed in the two ends of mainframe 23 respectively, removable activity is embraced piece and is connected actuator cylinder piston and push strut, two groups of removable activities are embraced the piece left-right symmetry and are installed, removable activity is embraced piece and is connected oil cylinder piston and push strut, and the movable piece oil cylinder of embracing promotes removable activity and embraces piece and be connected with push strut with oil cylinder piston.Removable activity is embraced piece under the effect of control oil cylinder, and the unlatching and the closure of piece embraced in the realization activity, reaches simultaneously the purpose of holding, unclamping actuator cylinder piston and push strut tightly.Two sleeve 32 left-right symmetry configurations, sleeve one end links to each other with bloated piece by T type key, and sleeve one end is by rocking arm positioning framework 15 location, and two sleeves are realized interfix from the both sides of the piece that expands to the piece that expands respectively.Two push strut are symmetrical set, push strut one end with expand head and be connected, the push strut other end is embraced piece by removable activity and is filled in while still alive with actuator cylinder and be connected, in the hole enlargement process, along with moving of the piston of actuator cylinder 12, push strut 32 moves thereupon and transmits required drive.Two expansion left-right symmetry are discharged setting relatively, expand first end and are connected with push strut, connect in the socket joint mode by guide post between the two expansion heads.Expanding head plays a part in the hole enlargement process to bloated piece transferring power.When the life of two expansion hairs moved axially, the rubbing surface of the piece that expands can take place move radially relatively in the side (inclined-plane) of expanding head.Make steel pipe be touched part generation bulging.
As shown in Figure 4, dual-drive push-press type expander of the present utility model expands head by 35, two in 32, two sleeves of two push strut, a guide post 69, one cover is bloated, and piece 64 constitutes, and two actuator cylinders are installed in the two ends of mainframe respectively, two sleeve 32 left-right symmetry configurations, sleeve one end links to each other with bloated piece by T type key 61, on sleeve 35 and end face that bloated piece 64 is connected,, the radially T-slot of quantity such as offer according to bloated number of blocks.T-slot evenly distributes on the hoop of sleeve end face, keeps radially movable the connection by sleeve T shape key 61 with bloated piece 64.Two push strut are symmetrical set, push strut one end with expand head and be connected, the push strut other end is embraced piece by removable activity and is filled in while still alive with actuator cylinder and be connected, packing ring 60 is arranged between push strut and the sleeve.Push strut 32 runs through sleeve 35, and supports mutually by packing ring 60 and sleeve 35.In the hole enlargement process, along with moving of the piston of actuator cylinder, push strut 32 moves thereupon and transmits required drive.Two are expanded a left-right symmetry and discharge setting relatively, two are expanded head is that an anode expands 63 and one negative electrodes and expands 66, expands first end and is connected with push strut, and an expansion inclined-plane is provided with T type groove, by expanding a T shape key 62 and corresponding bloated piece connection, two are expanded head and connect by guide post 69.The mobile guide bar is inserted in and expands on the head, and sealing ring 70 is arranged on the mobile guide bar and expands between the head.Anode expands 63 to be fixed guide post 69 1 ends by screw thread, and the guide post other end stretches into negative electrode and expands 66 inner chamber, can expand 66 inner chamber at negative electrode and vertically move.Individual event valve 67 members such as grade are set on the push strut 32;
During the dual-drive push-press type steel pipe hole enlargement, expanding machine relies on collaborative tubulature and the inlet pipe finished of mainframe, dual-drive push-press expander and roller-way induction system.When carrying out tubulature, earlier the roller-way induction system is rotated mainframe 23, replace each bracing frame 50 on the rise and fall roller induction system in good time, vertically move steel pipe 65 and make steel pipe carry walking on the running roller 48.When whole Zhi Gangguan is enclosed within sleeve on the dual-drive push-press type steel pipe expander fully, finish tubulature.Then the roller-way induction system screws in mainframe to equipment together with steel pipe, realizes inlet pipe.Start two actuator cylinders 12, finish the centering with push strut 32, restart removable rocking arm bindiny mechanism, removable rocking arm is embraced piece 30 actuator cylinder 12 and push strut 32 is linked together; Start the rocking arm detent mechanism, the location is embraced piece 30 and is held and withstand sleeve 35 tightly; Start rotary positioning mechanism, upper and lower clamping oil cylinder unclamps equipment, and mobile steel pipe carries out feeding to expanding machine, when steel pipe is enclosed within on the piece 64 that expands with certain section length after, starts and holds up steady mechanism, buttresses the equipment of pushing hole enlargement, prepares hole enlargement; Two actuator cylinders 12 load synchronously, two push strut 32 drive negative electrodes expand 66 and anode expand 63 a same moved further, under the effect of two sleeves to the piece axial location that expands, bloated piece is close to two and is expanded an inclined-plane and move radially, force the steel pipe bulging, thereby reach the purpose of hole enlargement expand tube.After the work of second step was finished, owing to there is steel pipe cold deformation rebound phenomenon, expand piece and two inclined-planes that expand head were in self-locking state.For eliminating locking phenomenon, two actuator cylinders expand head to two simultaneously and load in the other direction respectively, and under the axial location effect of two sleeves to the piece that expands, two are expanded head and break away from self-locking state with bloated piece.Along with two continuation of expanding head are moved, bloated piece radially draws in.After the work of the 3rd step is finished, start and hold up steady mechanism, steady oil cylinder 18 is held up in withdrawal, utilize the roller-way induction system, steel pipe 65 not hole enlargement part continue to move to by the specified workload of technology and expand on the piece 64, restart and hold up steady mechanism, hold up steady pushing hole enlargement equipment, repeat the action of second to the 4th step, until the hole enlargement of finishing whole Zhi Gangguan 65; After finishing hole enlargement, steel pipe is moved to pushing expander negative electrode expand a side of 66 whole Zhi Gangguan 65.Enable the spinfunction of running roller induction system, the dual-drive push-press expander is screwed out mainframe together with steel pipe, then the steel pipe after the hole enlargement is sent into next process, repeat inlet pipe and tubulature again, and prepare the hole enlargement of next steel pipe.
Claims (6)
1, a kind of dual-drive push-press type steel pipe expander, two actuator cylinders are installed in the two ends of mainframe respectively, removable activity is embraced piece and is connected actuator cylinder piston and push strut, two groups of removable activities are embraced the piece left-right symmetry and are installed, it is characterized in that by two push strut, two sleeves, two are expanded head, a guide post, and the bloated piece of a cover constitutes, two sleeve left-right symmetry configurations, sleeve one end links to each other with bloated piece by T type key, and two push strut are symmetrical set, and push strut one end is connected with the expansion head, push strut is in sleeve, two expansion left-right symmetry are discharged setting relatively, expand first end and are connected with push strut, expand an inclined-plane and are provided with T type groove, by expanding a T shape key and corresponding bloated piece connection, two are expanded head and connect by guide post.
2, dual-drive push-press type steel pipe expander according to claim 1, it is characterized in that sleeve one end located by the rocking arm positioning framework, two sleeves are realized interfix from the both sides of the piece that expands to the piece that expands respectively, on sleeve and end face that bloated piece is connected, offer radially T-slot, T-slot evenly distributes on the hoop of the simple end face of cover.
3, dual-drive push-press type steel pipe expander according to claim 1, it is characterized in that two expansion heads are that an anode expands head and a negative electrode expands head, anode expands head and negative electrode expands head by the vertical socket joint of guide post, anode expands head to be fixed guide post one end by screw thread, and the guide post other end stretches into negative electrode and expands head.
4, dual-drive push-press type steel pipe expander according to claim 1, the piece that it is characterized in that expanding keep being connected with expansion head, sleeve by T type key and T type groove.
5, dual-drive push-press type steel pipe expander according to claim 1, it is characterized in that expanding an inclined-plane and be provided with T type groove, expanding a profile is positive multi-pyramid, the terrace with edge surface is divided into side and bottom surface, on each side of expanding head, offer a T-slot that connects upper and lower bottom surface along the side center line, the opening surface of T-slot overlaps with an expansion corresponding side surface.
6, dual-drive push-press type steel pipe expander according to claim 1, it is characterized in that setting up procedure control device on the mainframe, comprise a rotary positioning mechanism, a roller-way induction system, two removable rocking arm bindiny mechanisms, two rocking arm detent mechanisms, hold up steady mechanism to form for two, rotary positioning mechanism is by the rotation positioning framework, last clamping oil cylinder, following clamping oil cylinder, last grip block and following grip block are formed, last clamping oil cylinder connects promotion and goes up grip block, following clamping oil cylinder connects promotion grip block down, last grip block and following grip block are clamped bloated piece, removable rocker arm body is by a removable rocking arm connecting frame, two rocking arms are embraced piece oil cylinder and two removable rocking arms and are embraced piece and form, two removable rocking arms are embraced piece and are installed on the removable rocking arm connecting frame; the rocking arm detent mechanism is by a rocking arm positioning framework; two location armful piece oil cylinders; two location are embraced pieces and formed; location armful piece oil cylinder connects the location of control and embraces piece; the location is embraced piece and embraced and withstand sleeve; hold up steady mechanism to hold up steady framework by one; hold up steady oil cylinder composition for two; hold up steady oil cylinder to be installed in and hold up on the steady framework; hold up steady oil cylinder to be mutually 120 degree angles for two; the roller-way induction system comprises the bearing platform; the deflection oil cylinder; weld seam centering is adjusted running roller; bracing frame; steel pipe is carried running roller and mainframe bearing platform; the bearing platform is set on the mainframe bearing platform; the bearing platform is provided with bracing frame; the bearing platform is provided with steel pipe and carries running roller, and the bearing platform is provided with weld seam centering adjustment running roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920005236 CN201415240Y (en) | 2009-01-24 | 2009-03-18 | Dual-driven pushing type steel tube expanding device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910037034.7 | 2009-01-24 | ||
| CN200910037034 | 2009-01-24 | ||
| CN 200920005236 CN201415240Y (en) | 2009-01-24 | 2009-03-18 | Dual-driven pushing type steel tube expanding device |
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| CN201415240Y true CN201415240Y (en) | 2010-03-03 |
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| CN 200920005236 Expired - Lifetime CN201415240Y (en) | 2009-01-24 | 2009-03-18 | Dual-driven pushing type steel tube expanding device |
| CN 200910126899 Active CN101518805B (en) | 2009-01-24 | 2009-03-18 | Dual-drive push-press type steel pipe expanding device and process |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910126899 Active CN101518805B (en) | 2009-01-24 | 2009-03-18 | Dual-drive push-press type steel pipe expanding device and process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583488A (en) * | 2024-01-18 | 2024-02-23 | 山东世拓房车集团有限公司 | Symmetrical positioning mechanism applied to longitudinal beam of caravan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513460A (en) * | 2011-12-16 | 2012-06-27 | 大连三高科技发展有限公司 | Steel pipe end sizing mill assembly with diameter expanding function |
| CN103341539B (en) * | 2013-07-11 | 2016-01-06 | 山东金瑞诺华兴机械有限公司 | A kind of two reductor drive plate forming machines for processing wave webs |
| CN104525715A (en) * | 2014-11-12 | 2015-04-22 | 四川宁江山川机械有限责任公司 | Sleeve type general expansion mold for precise expanding |
| CN105736893B (en) * | 2016-04-19 | 2018-01-02 | 河南诚明管道工程技术有限公司 | Liner cold rolling pipe expander |
| DE102017210818A1 (en) * | 2017-06-27 | 2018-12-27 | Mahle International Gmbh | Method for producing a piston for an internal combustion engine from a piston upper part and from a piston lower part |
| CN109175139B (en) * | 2018-09-04 | 2023-12-22 | 广东金亨制罐有限公司 | Intelligent vertical multi-station expansion tank forming machine |
| CN111842673A (en) * | 2020-07-22 | 2020-10-30 | 中国石油天然气集团有限公司 | Method for improving geometric dimension precision of pipe body and pipe end of straight welded pipe |
-
2009
- 2009-03-18 CN CN 200920005236 patent/CN201415240Y/en not_active Expired - Lifetime
- 2009-03-18 CN CN 200910126899 patent/CN101518805B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583488A (en) * | 2024-01-18 | 2024-02-23 | 山东世拓房车集团有限公司 | Symmetrical positioning mechanism applied to longitudinal beam of caravan |
| CN117583488B (en) * | 2024-01-18 | 2024-03-29 | 山东世拓房车集团有限公司 | Symmetrical positioning mechanism applied to longitudinal beam of caravan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101518805B (en) | 2011-09-14 |
| CN101518805A (en) | 2009-09-02 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090318 |