CN106238497A

CN106238497A - Manufacture the method for metal tube, seamless pipe apparatus operation method, push-bench, seamless pipe equipment

Info

Publication number: CN106238497A
Application number: CN201610404850.7A
Authority: CN
Inventors: 皮特·蒂文; 赫尔吉·丹尼尔
Original assignee: SMS Group GmbH
Current assignee: SMS Group GmbH
Priority date: 2015-06-09
Filing date: 2016-06-08
Publication date: 2016-12-21
Anticipated expiration: 2036-06-08
Also published as: RU2016119243A; ITUA20163628A1; AT517326B1; CN106238497B; ES2600455R1; RU2690621C2; ES2600455A2; DE102015109092A1; ES2600455B1; AT517326A3; RU2016119243A3; AT517326A2

Abstract

In order to manufacture at low cost diameter more than 7 inches, i.e. 17.78 centimetres seamless metal pipes, it is arranged to, push-bench undertakes the work being arranged on the unit before push-bench in traditional production link, or consigns to work be arranged on the unit after push-bench in traditional production link.

Description

Manufacture the method for metal tube, seamless pipe apparatus operation method, push-bench, seamless pipe Equipment

Technical field

The present invention relates to a kind of method for manufacturing metal tube from billet, wherein first billet bores a hole, then on top In pipe machine stretching and then finish rolling become to manage, wherein push-bench preferably includes at least two to have the push rod of different top shank diameter total Become.Moreover, it relates to a kind of for operation there is perforating machine, be arranged in perforating machine after push-bench and be arranged in push pipe The method of the seamless pipe equipment of the finishing mill (especially stretching subtracts milling train) after machine, wherein seamless in order to manufacture from billet Pipe, billet, first in perforating machine middle punch, then stretches in push-bench and then finish rolling becomes pipe in finishing mill.The present invention is also Relate to a kind of there is push rod and at least two is placed in the push-bench of the cylinder in ring bed.Moreover, it relates to a kind of tool Have perforating machine, be arranged in perforating machine after push-bench and finishing mill (especially stretching subtracts milling train) after being arranged in push-bench Seamless pipe equipment, wherein milling train is designed based on aperture series, and push-bench includes that at least two has different push rod The push rod assembly of diameter.

Background technology

For manufacturing metal tube or for operating the conventional method of corresponding seamless pipe equipment, and the push-bench of routine or Conventional seamless pipe equipment is disclosed fully by prior art.Especially, at corresponding seamless pipe equipment and be used for Operate and the method for this seamless pipe equipment can exemplarily use Mannesmann piercing mill (such as taper skew rolling mill) as perforation Machine, and/or use stretching to subtract milling train as finishing mill.

Especially, such as patent documentation DE 37 42155 A1 describes a kind of method for manufacturing seamless pipe, wherein, The hollow bloom of opening first end before it is by being sequentially arranged in frame lathe by reducing its internal diameter Drawing trestle (being formed pass by the roller of three or four loose operations wherein) join along the end face of the plug longitudinally pulled Put thrust bearing, then drive through drawing trestle by means of pulling of plug, and therefore reduce its external diameter And extend on plug.

Additionally, patent documentation EP 1498193 A1 discloses a kind of for making from rolling or the crowded billet casting rod shape The method and apparatus making the seamless pipe of metal, especially seamless steel pipe, wherein, the method is characterized in that, is being sent into by plug After the hollow body of heavy wall obtained by billet is bored a hole, remove the bottom of hollow body, with this hollow body of after-drawing, and at push pipe Before stretching on machine, the pipe end sending into side opening towards push-bench to the hollow body being stretched collides, thus Causing upper surface imperfect because of the error of the bottom of heavy wall when avoiding in stretching and stretch, this makes again the quality of seamless pipe Improved significantly.

Patent documentation DE636741C, DE640955C and DE911365C also disclose that push-bench, the most respectively in stretchable holes Arrange servo-actuated roller between footpath and arrange and driven or drivable friction aperture roll between friction aperture, in order to passing through This mode alleviates the form fit in the region of bottom impacts, and therefore realizes higher draw ratio.

Summary of the invention

It is an object of the invention to be achieved at low cost the manufacture of seamless metal pipe, especially for medium and bigger straight Footpath and for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres).

Above-mentioned purpose substantially can be accomplished by, i.e. push-bench undertakes and sets in traditional production link Put the task of unit before push-bench, or after consigning to task be arranged on push-bench in traditional production link Unit.Multiple concrete solution can be had, although they are to adjust in production link based on this basic concept Actual task, but but unexpectedly can manufacture seamless metal pipe, especially for medium and bigger diameter Cost is reduced during seamless metal pipe.

The manufacture of seamless metal pipe, especially for medium and bigger diameter and for diameter more than 7 inches The manufacture of the seamless metal pipe of (i.e. 17.78 centimetres), can pass through a kind of for manufacturing metal tube from billet at low cost Method realizes, and first billet bores a hole in the method, then stretches in push-bench and then finish rolling becomes pipe, this manufacture method Being characterised by, the rod that rolls that first billet bored a hole is arranged in the cylinder of push-bench by least one on push-bench pushes away Dynamic.Wherein, the most imperforated billet pierced billet can become hollow ingots or the billet of described perforation, wherein the most in known manner Described hollow ingots then continues to be drawn into pipe in push-bench, simply wherein hollow ingots or relevant pipe first by At least one cylinder of push-bench drive element extraly towards push rod or only along the direction of transfer of push-bench or hit Hit rolling direction to promote or mobile.Preferably, described driving element includes the roll of cylinder.By the driving unit of push-bench self Part, especially when knockout process starts, it is not necessary to simply by push rod, but inevitably also by push rod and perforation billet it Between interaction apply to act on power on billet.(such as touch to realize this interaction before therefore, it can reduce Hit) and the spending that needs, this also correspondingly reduces cost.

On this point, this push-bench is characterised by driving means, by means of this driving means, at the shock of push-bench The roller of the first cylinder on direction or at least one roller can offset on one's own initiative in rotation, thus drive hollow ingots or Pipe so that this roller plays a role in being comparable to roll.Therefore, if push-bench is characterised by, at least on top Any one cylinder in the crash direction of pipe machine is with at least one powered or drivable roll, then just may be used There is push rod and at least two is placed in the push-bench of the cylinder in ring bed and manufactures seamless metal by a kind of at low cost Pipe, the most medium and bigger diameter, and diameter is more than the seamless metal pipe of 7 inches (i.e. 17.78 centimetres).This also leads Cause, can correspondingly reduce cost by exempting the measure (such as collision) being particularly previously required to implement, or can be therefore And cut down expenses.

On this point, first the billet of perforation can be arranged in the cylinder of push-bench by least one on push-bench Roll promote, and this at least to last till that the frictional fit between push rod and the billet of perforation or pipe reaches sufficiently high Degree so that can complete to promote by push rod as in traditional push-bench.Obviously, can there is multiple roll at this Participate in multiple cylinders.

As the above-mentioned accumulation using driving means in the cylinder of push-bench or replacement, the manufacture of seamless metal pipe, especially It is for medium and bigger diameter and for diameter more than the system of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres) Making, can be realized by a kind of method for manufacturing metal tube from billet at low cost, billet is first in the method Perforation, then stretches in push-bench and then finish rolling becomes pipe, and described manufacture method is characterised by, at least the first of push-bench The roller of cylinder realizes the frictional fit between the push rod of push-bench and the billet of perforation or pipe, in order to can be by push rod Move forward and make perforation billet or hollow ingots before push away acquisition support or be simply carried out.It is different from known Push-bench or corresponding known manufacture method, friction between push rod and the billet of perforation in manufacture method known to these Coordinate or form fit is that the measure (such as by collision) by implementing in the past realizes, or (as at patent documentation As shown in DE636741 C, DE640955 C and DE911365 C) the only roller in roll aperture is with supplementary side Formula frictionally plays a role, and these measures (are wherein the friction that just can have of knockout process between push rod and the billet of perforation Coordinate) itself can implement at push-bench.By realizing the frictional fit between push rod and the billet of perforation, can (as Promote billet by push rod itself in traditional push-bench like that).

Obviously, be responsible for the roll that promotes with realize the roller of frictional fit both can together with can also individually demonstrate phase The advantage answered.Such as, the roll being on the one hand responsible for promoting can drive billet to pass individually and be formed by the cylinder of push-bench Aperture, until friction between push rod and push-bench reaches sufficiently large degree on the whole so that can abandon being come by roll Promote, and only can be promoted by push rod as in traditional push-bench.On the other hand it is also contemplated that, In the case of abandoning the roll being responsible for promoting, the roller of the first cylinder to realize enough between push rod and the billet of perforation Interact, so as to complete to promote by push rod.Further, it is also possible to combine these measures so that first roll promotes Help roller (including roll if desired) and strengthen top by corresponding measure (such as by reducing the aperture of the first cylinder) Frictional fit between bar and the billet of perforation.

As the replacement for being realized the frictional fit between push rod and the billet of perforation by the roller of the first cylinder Or supplement, the billet of perforation or pipe can collide on push-bench, and/or pass through the roller of at least the first cylinder or roll Roller carries out rolling on push rod.Push-bench is carried out collide and from billet, manufacture seamless pipe or nothing traditional before determining The measure implemented before push-bench in the method for seam metal tube is currently capable of on push-bench implementing, and therefore consumes more Few time, this necessarily lowers the cost of implementation.Wherein it is possible to complete to collide by single unit, but this Therefore the expense of other units can be produced.Likewise it is possible to pass through (the especially first cylinder) roller or the roll of push-bench Complete collision.Rolling on push rod can also be by the roll of push-bench or roller, preferably by the first of push-bench Roll or the roller of cylinder complete.Wherein, it is possibility to have multiple cylinders participate in.

Therefore, the manufacture of seamless metal pipe, especially for medium and bigger diameter and for diameter more than 7 The manufacture of the seamless metal pipe of inch (i.e. 17.78 centimetres), it is also possible to manufacture metal tube from billet by a kind of at low cost Method realize, first billet bores a hole in the method, then in push-bench stretching and then finish rolling become manage, described manufacture Method is characterised by, the perforation billet being loosely disposed on push rod stretch on push-bench before at least through cylinder Roller collide on push-bench, and/or on push rod, carry out rolling.Obviously, corresponding it is beneficial that these measures are permissible Implementing individually and cumulatively, especially together with following measures, the most at least roller of the first cylinder of push-bench realizes push pipe Frictional fit between push rod and the billet of perforation of machine, and/or perforation billet on push-bench first by least one cloth Put the roll in the cylinder of push-bench to promote, especially by the implementation process of the mode method for reducing of low cost, the most such as Collision can be exempted before being placed on push-bench by the billet of perforation.Wherein, the program is especially different from patent documentation US2819790, although wherein colliding on push-bench, but is to utilize the recessed pincers of custom-designed disk like to complete, so Can abandon using the guide required supplementation with because of long push rod, this is because there is the first roll to be directly used in guiding.

Cumulatively or alternatively, the manufacture of seamless metal pipe, especially for medium and bigger diameter and for Diameter is more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), it is also possible at low cost by one for from billet The method of middle manufacture metal tube realizes, and first billet bores a hole in the method, then stretching then finish rolling in push-bench Cheng Guan, described manufacture method is characterised by, billet has constant and continuous print internal diameter when perforation, and is then exempting collision In the case of send into push-bench.In other words, it means that the billet to perforation can be abandoned or to the bottom in pipe or similar Position is collided or keeps intact, thus will not roll over the end or the billet of perforation or the pipe that are not collided give push-bench. In this respect, in order to be further processed, billet or the pipe of perforation are sent into push pipe under conditions of abandoning colliding accordingly Machine, is clashed into by push-bench the most easily and collides, and therefore this cause a small amount of leftover pieces.

By previously described manufacture method, at least one method step can be carried out in time saving mode, or Remove method step, thus can relatively rapidly process the billet of perforation or relevant pipe, the most thus can carry out Hotter processing, can obtain beneficial effect in deformation result and one-tenth present aspect especially by hotter processing.

Obviously, when for make from billet specific metal tube largely effective time, it is also possible to increase in a manufacturing method Other method step, the most separately pipe head, expansion or similar procedure.

In addition it is advantageous that in order to carry out colliding or carrying out rolling on push rod, the billet of perforation is at push-bench up to Carried out colliding and/or on push rod, carrying out rolling, this is because this is in hollow ingot by the roller of the first cylinder of push-bench less The good interaction produced between ingot or pipe or the frictional fit of inside can allow to utilize push rod rapidly Promote pipe, and can again clash into entirely conventional Technology.

Particularly useful, if to trailed roller and/or at surface of the work by right before trailed roller Surface of the work is lubricated, and can reduce impact force to be applied in the fabrication process.This useful lubrication can such as only Carry out by the way of part coating lubricant, therefore need not carry out on the whole circumference of the billet of perforation or pipe, this Correspondingly reduce cost.This be particularly suited for when roll driven as trailed, can be by the roller of associated lubrication It is arranged in the situation in same cylinder.In the case of proper lubrication, the region of roll can be born higher friction, make Obtain this roll or multiple roll can play the effect of promotion the most well.If roll subsequently should be by not lubricated Or the region slightly lubricated, then can be lubricated at this, when this lubrication is proved to be useful.

Relatively, owing to can realize simply in technique, therefore can on purpose only be driven without roll The traction roller of dynamic cylinder, and/or before surface of the work is by this cylinder, surface of the work is lubricated, this is because Thus can realize more preferable frictional fit.Especially, powered roll and hollow ingots or pipe can thus be reduced The danger that frictional fit reduces due to the reason of lubricant.Therefore it is advantageous that relevant lubrication operation is preferably only at bag Contained be not driven or non-driven roll cylinder at carry out.

If the only roller to the cylinder only with traction roller, and/or surface of the work is before it is by this cylinder It is lubricated, then can particularly simple realize the greasing being correlated with in technique.

Obviously, the above-mentioned measure for lubricating roller can also not rely on other the technical characteristic of the present invention, at tool It is useful for having in the push-bench of that include the roller of traction and driving or drivable roller or roll cylinder.

Additionally it is advantageous that the push rod of push-bench is with the stroke speed risen and/or with the shock speed less than 4 metre per second (m/s)s Degree is knocked the ring bed by push-bench.Especially, if with the stroke speed risen or to coordinate with each workpiece material Limited stroke speed clashes into push rod, can particularly effectively build initial frictional fit.Wherein, stroke speed should be with base The various materials of ingot or push rod are coordinated mutually, or in the speed of the coordination being set to from the form obtained by experiment acquisition Limit.Patent documentation DE3021940 discloses, push-bench has clashed into push rod with the stroke speed risen, but wherein should Document is arranged to, and especially eliminates collision when wherein, or be substantially provided with the rolling on frictional fit, push-bench or its The knockout process of his operation advancing perforation billet to be impacted should use the stroke speed of rising, hit by push-bench Hit the billet of the perforation collided.

In the manufacture method of the present invention, can realize approximating self-centered in the following manner the most simply Knockout process.That is, when the billet of perforation, arrive at first cylinder of push-bench at least up to it and with the roller of this cylinder and/ Or till during roll contact, be placed on push rod by independent positioner, and/or existed by the independent auxiliary device that pushes Side towards this cylinder is passed up.Especially, auxiliary device (such as additional plunger or individually pliers), or location are pushed Auxiliary device (shaft shoulder that can unclamp after corresponding on such as push rod foot) advances the billet of perforation, until occurring to have Collision process, until there being frictional fit between push rod and the billet of perforation, or until between push rod and the billet of perforation, have foot Enough ever-increasing effective connections.Thus, so that the billet of perforation is correctly fixed in suitable method implementation process Position is on push rod, especially until such as by collision or being formed sufficiently by frictional fit between push rod and the billet of perforation Till the specific moment connected.It is envisioned that independent positioner and the independent auxiliary device that pushes impose enough Power, in order at least starting stage at knockout process clashes into the billet of perforation by push-bench, on one's own initiative at least up to existence Enough power coordinates or till frictional fit.Especially since the stretching of workpiece material when must take into shock, therefore result in Higher control cost.It is advantageous that independent positioner and independent push auxiliary device (as long as they exist), can be right The billet of perforation impacts in its location, until colliding, or until forming frictional fit, the most permissible Such as by starting roll or roller, on purpose in preassigned position, the billet of perforation is collided or formed and rub Wipe and coordinate.Then, positioner or push auxiliary device be released through latter approach be in push rod power coordinate, frictional fit Or the perforation billet of form fit, and only by push rod and the billet of perforation is driven to pass through push-bench by roll if desired.

Therefore, the manufacture of seamless metal pipe, especially for medium and bigger diameter and for diameter more than 7 The manufacture of the seamless metal pipe of inch (i.e. 17.78 centimetres), can have push rod by one at low cost and at least two is pacified The push-bench being placed on the cylinder in ring bed realizes, and described push-bench is characterised by, push-bench includes for the base by perforation Ingot is placed in the positioner on push rod, and/or for will be located in the billet direction towards cylinder of the perforation on push rod The pushing in device transmitted, this is because thus can utilize above-mentioned corresponding advantage to reduce billet is being loaded on push-bench it Before be applied to perforation billet on power.

Positioner, the billet of perforation is placed on push rod and is guaranteed that by which the billet of perforation is via logical by it Cross form fit that positioner facilitates between push rod and the billet of perforation and/or frictional fit carry out the shock along with push rod and By the aperture of push-bench, this positioner can be designed to, and provides between billet or hollow bloom and the push rod in perforation When enough direct friction coordinate, release form fit and/or frictional fit.It is, for example possible to use the shaft shoulder that can snap in or Recoverable retaining element or similar component are as positioner.

As mentioned above, it is advantageous that billet has constant and continuous print internal diameter when perforation, and is then exempting collision In the case of send into push-bench.Therefore, the manufacture of seamless metal pipe, especially for medium and bigger diameter and right In diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be made from billet by a kind of at low cost The method making metal tube realizes, and first billet bores a hole in the method, then stretches in push-bench and then finish rolling becomes pipe, Wherein push-bench includes that at least two has the push rod assembly of different top shank diameter, and described manufacture method is characterised by, billet Bore a hole into and there is the internal diameter adapted with each push rod diameter.

If billet is bored a hole into has the internal diameter adapted with each push rod diameter, then hollow ingots or pipe can be more preferable Ground is adapted to the diameter of push rod, such that it is able to more simply realize the collision of hollow ingots or pipe.Especially when push rod with When can produce the best frictional fit between hollow ingots or pipe, it is also possible to exempt this when necessary simplerly Plant collision.

Obviously, in addition to billet is bored a hole into hollow ingots and is then drawn into pipe, it is also possible to implement other extraly Method step, the most separately head, extension or similar operations.Especially, can also hold by means of seperator when necessary Row method step.Obviously it is advantageous that bore a hole into there is the internal diameter matched especially can be with remaining technical characteristic phase above-mentioned In conjunction with.

As accumulation or the replacement of such scheme, the manufacture of seamless metal pipe, especially for medium and bigger straight Footpath and for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be at low cost by one Having a push rod and at least two is placed in the push-bench of the cylinder in ring bed and realizes, wherein this push rod has directly at its top The shaft shoulder that footpath is thicker than other working beam.This shaft shoulder is so that the frictional fit between push rod and the billet of perforation is more held Easily, or the frictional fit between push rod and the billet of perforation can be guaranteed individually.Consequently, it is possible to especially when on top When implementing collision on pipe machine, such as can complete collision with lower cost.Similarly, friction should be provided when necessary to join The roller closed can be with less deformation cost offer relative to this shaft shoulder with thus relative to the frictional fit of push rod.If worn The internal diameter of the billet in hole is the least with the difference of the external diameter of the shaft shoulder, then in the billet of the perforation that only driven in by the shaft shoulder, in order to providing must The frictional fit wanted so that push rod guarantees to promote in a conventional manner billet or the pipe of perforation, is also enough.According to Concrete processing method or the design of push-bench, the shaft shoulder can serve as hollow by form fit or frictional fit The positioner that billet is at least placed on push rod when clashing into and starting.

If desired, when clashing into, the shaft shoulder can be driven out of from pipe, can also only retain on the shaft shoulder the most if desired Little pipe space, it is as waste product tolerance or makes its internal diameter again adapt to the internal diameter of remaining pipe during subsequently.

Additionally, the shaft shoulder can be arranged on push rod in removable mode so that it can be quickly carried out change and The most even use as wearing detail.

Obviously, it is beneficial to can use the above-mentioned shaft shoulder the most cumulatively, especially with (especially at the first roller or arbitrarily At one the first roller) driving roll, or with other with positioner or as the driving element of positioner, or with Pushing in device, or with realize the roller of frictional fit, or with exempt collision together with coordinate,.

Especially, manufacture method described here can be advantageously carried out by above-mentioned push-bench, wherein work as processing method Manufacture process can be shortened in time so that billet to be processed can the most thermally experience method step subsequently time applicable Until terminating.

Under existing conditions, have between roller and roll following difference, i.e. roller as upperseat concept can with roll and The generally mode of deformation contacts workpiece, and roll is the rolling interacting with workpiece in the way of driving or interacting with each other Post.Generally, roller is traction or non-driven, and this can more simply realize in control technique, wherein in specific fortune Under row state, such as when all of propelling in push-bench can be guaranteed by push rod, it is also possible to a traction rollers.

In addition it is also possible to arrange multiple cylinder with at least one idle roll, wherein it is preferred that both at direction of transfer (shock rolling direction) upper visible initial cylinder or the most visible multiple initial cylinder.

At this need it is again noted that when between push rod and workpiece other position formed frictional fit time, quilt Can run together as roller or pull together after the roll driven.

If transmitted towards the direction of cylinder additionally, push-bench has for the billet that will be located in the perforation on push rod Pushing in device, then push rod is without frictional fit or extra positioner, this is because existing pushing in device can produce Raw progradation.Such as, pushing in device can include roll, but described roll preferably with will not or the least negligible The mode of deformation play a role.If desired, pushing in device can also include car or independent slide plate or similar component.Obviously, This pushing in device means constructively to need more expense, but can also as the case may be, by removing otherwise Required crash device and it being compensated by strict method implementation process.Preferably, when the base of push rod Yu perforation Guarantee have enough power to coordinate between ingot, frictional fit or during form fit, pushing in device then can discharge the billet of perforation, So push auxiliary to be only intended to be positioned relative to push rod exactly by the billet of perforation, until guaranteeing this otherwise Till location.

Especially, when by pushing in device when being passed up, towards the side of cylinder, the perforation billet being positioned on push rod, can So that the process of banging into is optimized, until otherwise guaranteeing there are enough frictional fit and filled by push rod between push rod and billet Push with dividing, it means that returned to known method.Obviously, particularly arrange except frictional fit can also use some to supplement Execute, other measure the most above-mentioned.

If desired, if owing to the shaft shoulder at the top of push rod and the deviation about being different from rated value occurs, the most not It is same as the deviation of constant internal diameter, can again adjust the internal diameter of workpiece in seperator or finishing mill.

Additionally, when at least one cylinder is with four rollers of round passes forming cylinders or roll, can be positive Ground improves stretching action and/or frictional fit.Thus can also improve the transmission effect of the impulsive force of push rod.

When cylinder is with two powered rolls and two trailed rollers, can be more preferable in the region of push-bench Ground promotes hollow ingots or pipe along direction of transfer.Especially, this setting can be implemented relatively easily in machine construction Meter.

Additionally, work as positioner and/or push auxiliary device and include being parallel to push rod and move and can be from hollow billet Handle that place unclamps and/or push rod can be parallel to when moving the device unclamped, it is possible to be of value to improve hollow ingots manual Operation, especially improves the location to billet or feeding.Wherein, as long as arrange the driver of oneself for handle or device, for The latter can such as be arranged at plunger, can be the handle on push rod and/or device at this for pushing auxiliary device, and by Push rod drives so that billet is placed on push rod and thus functions as positioner by they.

Another useful scheme is, this handle and/or this device can couple with push rod so that this handle becomes one to be determined Position device, motion and the motion of push rod that hollow billet relative to push rod placement and is made billet by this positioner are same Step, until should decontrol, this by opening handle or can be realized by decoupling, thus can again improve transmission Effect.

Similarly, as accumulation or the replacement of such scheme, the manufacture of seamless metal pipe, especially for medium and relatively Big diameter and for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can lead at low cost Cross and a kind of there is push rod and at least two is placed in the push-bench of the cylinder in ring bed and realizes, on the one hand push up in this push-bench The longest work through push-bench being shorter in length than or being equal to all apertures series (designing push-bench for it) of the ring bed of pipe machine The Workpiece length of 2 times of part；And/or on the other hand can load laterally in ring bed at this push-bench intermediate roll.

For the first replacement scheme, in view of the length of ring bed can forcibly require the least extensibility.Additionally, top Pipe machine can construct compacter.Therefore this reduce cost, and the tensile elongation being wherein weak when necessary can also Machine partially by the above or below of corresponding seamless pipe equipment realizes.

For the second replacement scheme, in view of cylinder can load in ring bed laterally, cylinder can be with the least Cost (such as without lowering or hoisting gear or similar device) be arranged in ring bed.More compactly and therefore especially, thus can Lower cost ground builds push-bench.

Relevant alternative deformation program is, all apertures series that is shorter in length than or is equal to of the ring bed of push-bench (is Design push-bench) the Workpiece length of 1.5 times of the longest workpiece through push-bench, so can significantly more realize State effect.

Other replacement scheme is equally applicable, wherein the ring bed of push-bench be shorter in length than or equal to all apertures series The Workpiece length of 1.3 times of the longest workpiece through push-bench of (designing push-bench for it).

Advantageously, when ring bed accessory has the cylinder storing apparatus of at least two side opening, one can structurally be entered Step ground development total, the advantage that thus the second replacement scheme can be better achieved accordingly.

It is also advantageous that, accommodate dress with each ring bed side that is arranged in corresponding to each cylinder at each cylinder storing apparatus Between the replacing position put, lateral transport device is set.Thus can simplify the transmission of cylinder further, especially can be very Fast ground transfer cylinder.Therefore, this finally contributes to reducing cost due to the advantage of speed.Especially, by lateral transport device, Corresponding cylinder can promptly remove from ring bed, and is fed again into, especially, it may be necessary in corresponding cylinder Carrying out, this is different from such as crane simultaneously, and it must work according to respective sequence.

In this case it is advantageous to, push-bench have be arranged in ring bed side and can be to be parallel to push-bench The roll changing carriage that moves of the mode of crash direction, wherein roll changing carriage is with at least two roller supporting device, and they are according to relevant Replacing position be indirectly arranged on roll changing carriage.By this design, can very rapidly change push-bench and surrounding Unit.So can prepare all cylinders to be changed on roll changing carriage, utilize cross drive device will wait to swap out when changing Cylinder transfer on roll changing carriage, then according in the following manner rearranges the position of roll changing carriage, i.e. make cylinder to be replaced It is positioned at replacing position, in order to utilize cross drive device to be transferred in cylinder storing apparatus.

Especially, when roll changing carriage is with two roller supporting devices of at least two sets, can the most quickly provide each other The roller assembly of compact Layout, two of which belong to the roller supporting device of the first support assembly according to relevant replacing position between It is arranged on roll changing carriage every ground, and two roller supporting devices belonging to the second support assembly are according to relevant replacing location interval Be arranged on roll changing carriage, two of which support assembly offsets in the way of side-play amount by the crash direction being parallel to push-bench and arranges On roll changing carriage.Then pass through skew and can realize two any one changed in positions of supporting arrangement simultaneously.

If side-play amount is less than the length of ring bed, preferably smaller than the shock side along push-bench of any one support assembly To the first supporting arrangement and last supporting arrangement between distance, especially less than the two of any one support assembly The distance of individual adjacent supporting arrangement, then the path of roll changing carriage when can reduce or reduce replacing the most significantly, and therefore, Accelerate Renewal process.

If at this it should also be noted that cylinder is not equidistant placement, the distance of my two adjacent supporting arrangements Need not to be the distance of the supporting arrangement being closely adjacent to each other.

Especially, there is the overload protection arrangement of upwardly-openable when at least one cylinder storing apparatus and/or be parallel to During the locking device of cross drive device effect, the safety on push-bench can be improved, be positioned at rolling by overload protection arrangement Cylinder in cylinder storing apparatus can move upward out when push-bench transships, and locking device stops cylinder towards horizontal grass-hopper Direction removal.Obviously, the overload protection arrangement of upwardly-openable can be configured to various ways, as long as be prevented from rolling at this Cylinder unintentionally laterally out of.Especially since removal will not occur in side as changing, therefore can be at push-bench Side works well.Especially, the safety of work can thus be improved.It is parallel to the locking dress of cross drive device effect Put and can such as be realized by the latch in protective bulkhead, guide rail or similar device.When there is overload during clashing into, by this Kind of mode can by laterally out of and the relevant potential danger to the mankind and machine be reduced to minimum degree.

According to another aspect of the present invention, the manufacture of seamless metal pipe, especially for medium and bigger diameter, And for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be had by one at low cost Push rod and at least two are placed in the push-bench of the cylinder in ring bed and realize, and wherein push rod guide includes that at least one has There is the guiding mechanism in adjustable guide aperture.If guiding aperture to mate with each push rod when push rod is changed, then can milli Without problems and therefore surcharge land used is not had to use the push rod with different-diameter.By the push rod guide advised herein Can structurally be reliably prevented hollow ingots or pipe bending, the most therefore prevent drum of damage maybe damage to be reduced to Minimum degree.

In addition it is advantageous that guide mechanism there is preferred openable guide support, this guide support is disposed with to Few two guiding pieces that can be adjusted by regulation instrument, they are respectively provided with the guide surface for contacting push rod.Thus can be Match from different push rods simply in structure.

Regulation instrument can be different kinds, such as hydraulic pressure, electronic and/or machinery.

According to another aspect of the present invention, the manufacture of seamless metal pipe, especially for medium and bigger diameter, And for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), it is also possible to had by one at low cost The push-bench having push rod and at least two to be placed in the cylinder in ring bed realizes, and the roller of its intermediate roll or roll are according to following Direction, aperture be arranged in cylinder, this direction, aperture relative to cylinder installation direction with more than zero degree less than the angle of 180 degree Degree tilts.Thus can realize the multiple application of cylinder well, thus reduce cost.

When determining angle, the direction, aperture on the line of symmetry of roller unit is arranged to the angle of minimum, so as to Effectively and meaningfully determine angle.Such as, if greater or lesser angle is new owing to symmetrical reason causes having Roller, then its direction, aperture can be made to tilt between 0 to 120 degree relative to installation direction with the cylinder of three rollers Angle.Similarly, for there being the situation of two rollers on cylinder, angular range can be between 0 and 180 degree.

Especially, in this case it is advantageous that one in cylinder with four rollings forming cylinder round pass Post or roll, and direction, aperture tilts relative to the installation direction of cylinder with the angle of 22.5 °, thus, on the one hand can make Stretching action and/or frictional engagement, and the impact force being passed to billet by push rod for the latter keeps good level, another Aspect can realize the multiple application of corresponding cylinder type, and therefore reduces relevant cost.Alternatively, roll when at least one Cylinder with three rollers of round passes forming cylinders or roll, and direction, aperture with the angle of 30 ° relative to cylinder When installation direction tilts, it is also possible to realize these advantages.Similarly, when direction, aperture with the angle of 45 ° relative to the peace of cylinder When dress direction tilts, can also realize above-mentioned excellent for the roller of round pass or the cylinder of roll forming cylinder with two Point.

Thus may determine that, according to another aspect of the present invention, the manufacture of seamless metal pipe, especially in Deng and bigger diameter and for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be low Become local and there is push rod and at least two is placed in the push-bench of the cylinder in ring bed and realizes by a kind of, wherein roller or roll Roller is arranged in cylinder according to following direction, aperture, and this direction, aperture tilts an angle relative to the installation direction of cylinder, This angle is 90 degree of rollers divided by each cylinder or number n of roll, i.e. tilts 90 °/N.Thus can realize rolling well The multiple application of cylinder, thus reduce cost, this is because need mounting rotary drum on different installation directions, in order to by each The roller of cylinder or roll are arranged with staggering.

Cumulatively or alternatively, the manufacture of seamless metal pipe, especially for medium and bigger diameter and for Diameter, more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be used for from billet by one at low cost The method manufacturing metal tube realizes, and first billet bores a hole in the method, then stretches in push-bench and then finish rolling becomes Pipe, wherein the method is characterized in that, the billet of perforation on push-bench with less than 7, the extensibility of preferably more than 6 carries out Stretching.This asystematic relatively small extensibility, the load determined when stretching on the billet of perforation is sufficiently small, this Sample can build push-bench at low cost.

It is particularly advantageous to billet perforation time with at least 1.2, the extensibility of preferably at least 1.5 stretches, and this is corresponding Ground improves extensibility on the whole.

In particular, the manufacture of seamless metal pipe, especially for medium and bigger diameter and diameter is exceeded The manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be golden for manufacturing from billet by one at low cost The method belonging to pipe realizes, and first billet bores a hole in the method, then stretches in push-bench and then finish rolling becomes pipe, wherein The method is characterized in that, billet perforation time with at least 1.2 extensibility, the extensibility of preferably at least 1.5 stretches, and And on push-bench with less than 7, the extensibility of preferably more than 6 stretches.

If relevant extensibility is in this scope, then especially can realize very during the execution of method High motility.Additionally, due to carry out less stretching in push-bench, therefore cylinder, this meeting can be set the most thick and fast Causing compact ring bed, and the most correspondingly saved cost, a portion drawing process is shifted by push-bench the most in advance In perforating machine.

According to another aspect of the present invention, the manufacture of seamless metal pipe, especially for medium and bigger diameter, And for diameter more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be used for by one at low cost The method of operation seamless pipe equipment realizes, and this seamless pipe equipment has perforating machine, (such as taper is oblique especially to have skew rolling mill Milling train), the push-bench after being arranged in perforating machine and the finishing mill (especially stretching subtracts milling train) after being arranged in push-bench, its In in order to from billet manufacture metal tube, billet first in perforating machine middle punch, then in push-bench stretching and then in essence In milling train, finish rolling becomes pipe, wherein the method is characterized in that, only processing and the length of single times of manufacture.

By only processing and manufacture the length of single times, the push-bench that could be arranged to seamless pipe equipment arranges short ring bed. It addition, it is beneficial that the latter especially can play a supporting role with above-mentioned extensibility one.

In this case, the manufacture of seamless metal pipe, especially for medium and bigger diameter and for directly Footpath, more than the manufacture of the seamless metal pipe of 7 inches (i.e. 17.78 centimetres), can be come real by a kind of seamless pipe equipment at low cost Existing, this seamless pipe equipment has perforating machine, especially has skew rolling mill (such as taper skew rolling mill), after being arranged in perforating machine Push-bench and the finishing mill (especially stretching subtracts milling train) after being arranged in push-bench, wherein milling train is based preferably on aperture series And design, and push-bench includes that at least two has the push rod assembly of different top shank diameter, wherein seamless pipe equipment is at least The every other unit of one unit, especially perforating machine, push-bench and finishing mill and seamless pipe equipment, surpasses for manufacturing diameter The seamless metal pipe crossing 7 inches (i.e. 17.78 centimetres) is designed for the length of single times such that it is able to real on seamless pipe equipment Existing shorter ring bed.

By only processing and make the length of single times, the shortest ring is set at the push-bench that this can be seamless pipe equipment Bed, this correspondingly has superiority on cost.

Obviously, above-mentioned seamless pipe equipment can also be used to manufacture the pipe that diameter is less, wherein less when necessary Diameter can also be easily reached the length of many times.When diameter is more than 7 inches (i.e. 17.78 centimetres), equipment and embodiment party Method is limited to the length of single times a biggest following drawback, i.e. due to inevitably crop end loss and the end of each tubing string Loss can decline a lot in terms of weight.On the other hand, this probability allow to when diameter is less in if desired with The length of many times runs equipment, and simply at diameter more than 7 inches of (i.e. 17.78 centimetres) limit the length of single times, this Sample can run this equipment in wide range economical and practically.Typically for the length of single times, duct length is 10.67 Between rice and 16.76 meters, according to the purposes of pipeline, can make and provide such as length between 11.55 meters and 13.68 meters Drilling rod, length sleeve pipe between 10.36 meters and 14.63 meters and oil pipe, and length between 10.67 meters and 13.72 meters or Length spool-pipeline between 13.35 meters and 16.76 meters.

Obviously, when manufacture diameter is more than the metal tube of 7 inches (i.e. 17.78 centimetres), only of seamless pipe equipment Unit is limited to the length of single times, and other units retain the biggest capacity, are also enough.This is less for diameter Bigger degree of freedom is correspondingly had, when they should be manufactured into multilength for pipe.Preferably, at least perforating machine, push pipe Machine and finishing mill design size in such a way so that they may only will manufacture diameter more than 7 inches (i.e. 17.78 Centimetre) metal tube time required work pieces process become the length of single times.Especially, it means that, such as, processing is used for Manufacture diameter more than the workpiece of the metal tube of 7 inches (i.e. 17.78 centimetres), can be by based on corresponding weight and strength and change The milling train lathe of form quotient or extensibility and driving force design less.Preferably, correspondingly design all of unit, such as, rise Heavy industry tool and similar device, this hence helps to cost-effective.

Additionally, the manufacture of seamless metal pipe, especially for medium and bigger diameter and for diameter more than 7 The manufacture of the seamless metal pipe of inch (i.e. 17.78 centimetres), can be realized by a kind of seamless pipe equipment, this nothing at low cost Slit-tube equipment has perforating machine, especially has skew rolling mill (such as taper skew rolling mill), is arranged in the push-bench after perforating machine Be arranged in push-bench after finishing mill (especially stretching subtract milling train), wherein milling train designs based on aperture sequence, and Push-bench includes that at least three has the push rod assembly of different top shank diameter, and wherein perforating machine has at least three to have different Kong Xin The Kong Xin of diameter, and each push rod with the first push rod diameter and each Kong Xin with the first aperture diameter are corresponding to hole At least one common aperture of footpath series.

By the seamless pipe equipment of this structure, although to realize the highest variability, but push rod can be preferably Fitting in hollow ingots, such that it is able to realize collision simplerly, or even can exempt collision, this correspondingly has Cost advantage.

Wherein it is possible to consider the various combinations of push rod and Kong Xin, especially different cylinders can be used according to pass.

In a word, the present invention can apply very well on seamless pipe equipment, seamless in particular for manufacture more than 7 inches Pipe, has the less seamless pipe to medium production capacity.

Additionally, in suitable application scheme, it is possible to significantly decrease the highest sky of (known) push-bench Between requirement.

Collision can also by appeal technical characteristic or the combination of technical characteristic in suitable application scheme as required Fully phase out.

Furthermore, it is possible to be greatly reduced the damage of material by the folding end otherwise needed on the billet or pipe of perforation Lose.

Preferably, integrated existing collision in the operation of rolling, such that it is able to simplify existing manufacture method.

Especially, the product big for wall thickness change or seamless pipe, can be greatly shortened cumulatively or alternatively and be so far The longest repacking time.

Additionally, compared with traditional push-bench, can greatly shorten the tool changing time.

Additionally, compared to traditional Konti-pipe manufacturing method, MPM-pipe manufacturing method and PQF-pipe manufacturing method, permissible The requirement of reduction instrument, and improve the service life of instrument.

Additionally, also led to the technical scheme of driving particularly hollow ingots simplified, and the maintaining method that simplifies and rolling Machine equipment.

Particularly advantageously, stretch compared to oblique milling, can preferably roll particularly thin-walled or the tubing of alloy.

At present, processing or the rolling of single length is preferably carried out when rolling.But, multilength substantially falls within this The application of invention.

Thus, the push-bench of the present invention is preferably limited to moderate stretching, thus reduces length and the chi of push rod Very little.It is alternatively possible to use taper skew rolling mill, there is the highest stretch capability, to alleviate the work of push-bench when perforation.

In order to make ring bed keep compact as much as possible, pipe length may be limited to about 14 to 15 meters.

Additionally, four roller brackets can be used in the push-bench of the present invention, in order to be conducive to increasing drawing effect.

Cumulatively or alternatively, it is advantageous to use one or more driven initial support, for the core in push-bench Rolling perforation billet or hollow ingots on rod, as described in detail above.

The support Design being used together when the push-bench with the present invention is for having two idle rolls and two traction rollers Or during four roller bracket of similar component, the present invention can be realized the most simply.

Additionally, in the appropriate case, it is beneficial to being used together with the scheme in front and roll bar, hollow ingots rolls on bar at this Rolling.Thus reach to increase and roll bar and pass to the impulsive force of hollow ingots, as described in detail above.

Especially, in order to reduce impulsive force, can be to the roller in the cylinder being not driven and/or hollow ingots outer surface It is lubricated.

Additionally, it also have the advantage that

-by simplifying driving means, extend the service life of instrument, simplify and to the requirement of instrument and controlled by reduction Requirement, compared to PQF method and MPM method, the method for the present invention is more economical and practical for relatively low production capacity.

-additionally, it may be necessary to use simpler low-alloyed tool steel.

-in addition, it may be necessary to remove the meeting chromium plating plug to environment.

-a kind of simpler machine (such as skiving machine) can be preferably used adjust plug.

-in a word, due to can be simpler and be achieved at low cost milling train, extend the service life rolling bar and roll.

Should be appreciated that the technical characteristic in prior art feature and claim, can also be combined when necessary, from And realize corresponding advantage cumulatively.

Accompanying drawing explanation

Advantages of the present invention, purpose and characteristic is explained below in conjunction with the embodiment described by schematic accompanying drawing. In accompanying drawing:

Fig. 1 schematically shows seamless pipe equipment；

Fig. 2 shows the push-bench of the seamless pipe equipment shown in Fig. 1；

Fig. 3 shows the guiding mechanism for the push-bench shown in Fig. 2；

Fig. 4 shows the top view of the cylinder storing apparatus with corresponding cross drive device；With

Fig. 5 shows the top view of another cylinder storing apparatus.

Detailed description of the invention

Seamless pipe equipment 2 shown in Fig. 1 includes the perforating machine 64 being designed to taper skew rolling mill in the present embodiment, push-bench 1, and it is arranged to stretch the finishing mill 65 subtracting milling train in the present embodiment, wherein, billet 15 is in perforating machine 64 middle punch, perforation Billet 16 clashed into by push-bench 1, then in finishing mill 65, complete rolling as hollow bloom 63.

Here, push-bench 1 includes push rod assembly (Fig. 1 that at least three is made up of the push rod 3 with different top shank diameter 4 In schematically show), wherein push rod assembly can correspond to aperture sequence 67 (seeing Fig. 1), their own again with perforating machine Corresponding piercer 66 corresponding, and wherein in the schematic diagram of Fig. 2, the shock roll line 5 of push-bench 1 is placed with First push rod 3 with the first push rod diameter 4 of one of these three push rod assembly.Shown push rod 3 leads to along clashing into roll line 5 Cross unshowned and conventional top rod driving device to move in axial shock rolling direction 6.To this, push rod 3 is with its top 7 modes forward are clashing on line 5 shock rolling direction 6 impact forward axially.

Push rod 3 is disposed with and has been bored a hole that obtain by billet 15 and should therefrom manufacture metal tube (not shown) Workpiece 14, such billet 15 becomes the billet 16 of perforation or the hollow ingots (the most especially indicate) of perforation, wherein this billet 15 it Before bored a hole in the perforating machine (being not further indicated at this) of seamless pipe equipment 2 and have and mate with push rod diameter 4 in Footpath 17.

Additionally, in order to form this hollow tube core 63, push-bench 1 also includes ring bed 26, and it (wraps the most in the present embodiment Include the total of four of first roller assembly 25 and clashing into the cylinder 21,22,23,24 being sequentially arranged on roll line 5, they according to Have been arranged at shown in accompanying drawing in the ring bed 26 of push-bench 1.Here, cylinder 21,22,23,24 is arranged in and rolls along shock Line processed is sufficiently strongly fixed in the cylinder storing apparatus 55 in ring bed 26 so that be positioned at the cylinder in cylinder storing apparatus 21,22,23,24 the power applied by push rod 3 can be resisted.

Here, each cylinder 21 to 24 of first roller assembly 25 has roller 27 and/or roll 28 (is diagrammatically only by Property ground indicate), they can with as requested with application to be driven or non-driven or trailed mode are arranged in respective rolling In cylinder 21 to 24.

In the present embodiment, at least one roll 28 of first cylinder 21 (initial cylinder) is by showing the most further at this The driving means gone out drives so that the billet 16 of perforation can arrive the first cylinder 21 time by this idle roll 28 along axle To shock rolling direction 6 promote.

These rollers 27 or roll 28 can be designed to be respectively arranged with a round pass (not shown) in cylinder 21 to 24, wherein It is preferably set up four rollers 27 forming round pass or roll 28.As long as in cylinder 21 to 24 at least one with four Form roller 27 or the roll 28 of this round pass.To this, in cylinder 21 to 24, this specific roll can have two and drives Dynamic roll 28 and two traction rollers 27, and remaining cylinder 22 to 24 only includes drawing roller 27.

All apertures sequence that the length 30 of ring bed 26 is arranged for this than push-bench 1 the longest is through push-bench 1 1.3 times of the Workpiece length 31 of workpiece 14 short.

Additionally, the most as illustrated in figs. 4 and 5, cylinder 21 to 24 laterally can load ring (i.e. from side 32) In bed 26.This side 32 is to be radially disposed at shock roll line 5 side based on axial shock rolling direction 6.

Additionally, push-bench 1 also includes at least another roller assembly 40, it is the most in this first embodiment by least four Individual other cylinder 41,42,43,44 composition.

Here, either the first roller assembly 25 or another roller assembly 40 can be placed in shock roll line 5 Ring bed 26 is other so that each cylinder 21 to 24 or 41 to 44 can be transferred to shock from side without difficulty roll to change On line 5 processed or remove from it.

Constructively can be particularly simple by the roll changing carriage 50 of two roller assemblies 25 and 40 can be carried, laterally Two roller assemblies 25 and 40 are provided so that they can milli on ring bed 26 side and in the way of being parallel to clash into roll line 5 Arrive separately at without difficulty and (exemplarily only indicate at this) at their replacing position 51, can be more in described replacing position Change each cylinder 21 to 24 or 41 to 44.

To this end, roll changing carriage 50 has the first support assembly 52 and the second support assembly 53, wherein the first support assembly 52 Constituted by four roller supporting devices 54 (at this exemplarily only labelling) respectively with another support assembly 53.

As long as each cylinder 21 to 24 and 41 to 44 is assigned the replacing position 51 of oneself on roll changing carriage 50.

In turn, it means that the replacing position 51 of the respective subordinate on roll changing carriage 50 be laterally arranged in ring bed 26 other with And the relevant cylinder storing apparatus 55 of ring bed 26 is other.

In order to shift each rolling between the cylinder storing apparatus 55 changed on position 51 and ring bed 26 on roll changing carriage 50 Cylinder 21 to 24 or 41 to 44, at push-bench 1 arrange therefore design, the most in fig. 2 but the cross drive shown the most in the diagram Device 74.

In order to realize changing position 51, it can be the roller supporting device of various structure accordingly that roll changing carriage 50 is equipped with 54, as long as guaranteeing that affiliated cylinder 21 to 24 or 41 to 44 can reliably stop or be supported on roll changing carriage 50.

The push-bench 1 of the present embodiment includes two support assemblies 52 and 53, and they roll with the shock being parallel to push-bench 1 The mode of direction 6 bias offset amount 60 is arranged on roll changing carriage 50.Therefore, in order to support assembly 52 or 53 is individually positioned in more At change place 51, roll changing carriage needs only to mobile side-play amount 60.Therefore, it can first changing the use placing the free time at position 51 Support assembly 52 in cylinder 21 to 24, in order to cylinder 21 to 24 is moved on on roll changing carriage 50 by cross drive device 24.With After, roll changing carriage 50 is moved side-play amount 60 so that another is positioned at replacing position with the roller assembly 40 of its cylinder 41 to 44 At 51, and its cylinder 41 to 44 can be sent in cylinder storing apparatus by cross drive device 74.So can be very Realize the replacing of each cylinder 21 to 24 and 41 to 44 rapidly.

Here, side-play amount 60 is less than the length 30 of ring bed 26.Especially, side-play amount 60 is less than any one support assembly 52 Or first roller supporting device 54A and last roller supporting device of the shock rolling direction 6 along push-bench 1 of 53 Distance 61 between 54D, the more especially less than roller supporting device 54 of two direct neighbors of support assembly 52 and 53 Distance 62 in that shorter distance.It means that roll changing carriage 50 can be moved with minimum consuming, therefore this exist There is on time and in structure advantage.

Furthermore, it is possible to carry out fine ground resistance by being parallel to the locking device 76 (seeing Fig. 5) of cross drive device 74 effect Only cylinder 21 to 24 or 41 to 44 is jumped out along the direction 62 of cross drive device 74.

In order to when push-bench 1 transships, the cylinder 21 to 24 or 41 to 44 being positioned in cylinder storing apparatus 55 can remove, Push-bench 1 has or cylinder storing apparatus 55 have can overload protection that upwards (outside from paper the most as shown in Figure 2) is opened dress Put 75 (seeing Fig. 4 and Fig. 5).Here, the cylinder that overload protection arrangement 75 only one of which as shown in Figure 4 opens up accommodates dress Put 55 so that in the case of push-bench 1 transships, corresponding cylinder 21,22,23,24,41,42,43 or 44 can upwards move Go out.On the contrary, overload protection arrangement 75 as shown in Figure 5 included carrier beam 77, and it limits when properly functioning and maintains each rolling Cylinder 21,22,23,24,41,42,43 or 44, and only just open up from prespecified overload occurs.

It addition, push-bench 1 includes push rod guide 71, it includes that at least one has drawing of adjustable guiding pass Lead mechanism 68.Especially as it is shown on figure 3, vectoring aircraft sets up 68 has a guide support 70, wherein it is disposed with two and is designed to The guiding piece 71 of roll, it can be adjusted by regulation instrument 72, in order to matches from different push rod diameters 4, or The billet 16 that can allow perforation if desired passes through.Guide support 70 for maintenance purposes and can be installed by opening instrument 73 Purpose and open.

Especially, utilize this seamless pipe equipment 2 including push-bench 1 can effectively implement from billet 15 to make The method making metal tube, wherein billet 15 is first in perforating machine 64 middle punch being positioned at before push-bench 1, the base of its middle punch Ingot 16 is then drawn into hollow bloom 63 in push-bench 1, is then followed by the finishing mill 65 being positioned at after push-bench 1 rolling Become metal tube.

Here, the billet 16 of the perforation on push-bench 1 is first by first cylinder 21 or 41 being arranged in push-bench 1 Roll 28 promotes, wherein between the push rod 3 and the billet 16 of perforation of push-bench 1 by first cylinder 21 of push-bench 1 or The roller of 41 produces frictional fit.

At this preferably, the billet 16 of perforation carries out rolling on push rod 3.

Particularly advantageously, billet 15 wears into the perforation billet 16 with constant and continuous print internal diameter 17 when perforation, with After in the case of exempting collision, send into push-bench 1 or ring bed 26.

Alternatively, the billet 16 of the perforation on push-bench 1 can pass through roller 27 and can also pass through when necessary to roll Roller 28 collides.

Preferably, after first cylinder 21, the outer surface 18 of billet 15 or the billet 16 of perforation is lubricated, this It is because the roll being not provided with by other at this to push.In the technical scheme substituted, when roll 28 position of contact When leaving room in the circumferential, it is also possible to be lubricated before first cylinder 21.Roll 28 is once no longer necessary to drive, These positions can also be lubricated.

Obviously, above-described embodiment has merely related to push-bench or the technical scheme of seamless pipe equipment of the present invention.But, this The technical scheme of invention is not limited to these embodiments.

Here, the push rod assembly of perforating machine 64 and push-bench 1 and hole core assembly and corresponding aperture series 67 are pressed each other According in the following manner keep harmonious, i.e. perforation time extensibility between 1.8 and 2.2, during shock extensibility 4.5 and 5.5 it Between.It is equally possible that only make the length of single times on seamless pipe equipment 2.

Reference numerals list:

1 push-bench

2 seamless pipe equipment

3 push rods

4 push rod diameters

5 clash into roll line

6 axial crash direction or rolling directions

7 tops

14 workpiece

15 billets

The billet of 16 perforation

17 internal diameters

18 outer surfaces

First cylinder of 21 first roller assemblies

The second tin roller of 22 first roller assemblies

3rd cylinder of 23 first roller assemblies

4th cylinder of 24 first roller assemblies

25 first roller assemblies

26 ring beds

27 rollers

28 rolls

30 length

31 Workpiece lengths

32 sides

First cylinder of 40 another roller assemblies

The second tin roller of 41 another roller assemblies

3rd cylinder of 42 another roller assemblies

3rd rolling of 43 another roller assemblies

4th rolling of 44 another roller assemblies

50 roll changing carriages

51 change position

52 first support assemblies

53 another support assemblies

54 roller supporting devices

54A the first roller supporting device

Last roller supporting device of 54D

55 cylinder storing apparatus

60 side-play amounts

61 distances

62 shorter distances

63 hollow blooms

64 perforating machinees

65 finishing mills

66 hole cores

67 aperture sequences

68 guide mechanism

69 guide surfaces (exemplarily labelling)

70 guide supports

71 guides

72 regulation instruments

73 open instrument

74 cross drive devices

75 overload protection arrangements

76 locking devices

77 cross carrier beam.

Claims

1., for the method manufacturing metal tube from billet (15), wherein said billet (15) is first bored a hole, then at push-bench (1) stretching in, then finish rolling becomes pipe, it is characterised in that

I billet (16) that () is bored a hole on push-bench (1) first by least one be arranged in push-bench (1) cylinder (21,22, 23,24,41,42,43,44) roll (28) in promotes；

(ii) roller (27) of at least first cylinder (21,22,23,24,41,42,43,44) of push-bench (1) is in push-bench (1) Push rod (3) and perforation billet (16) between realize frictional fit；

(iii) it is arranged in before the billet (16) of the perforation on push rod (3) is to stretch on push-bench (1) loosely, extremely Collided on push-bench (1) by the roller (27) of the cylinder (21,22,23,24,41,42,43,44) of push-bench (1) less And/or carry out rolling on push rod (3)；And/or

(iv) billet (15) has constant and continuous print internal diameter (17) when perforation, and send in the case of exempting collision subsequently Enter push-bench (1).

2. manufacture method as claimed in claim 1, it is characterised in that the billet (16) of perforation on push-bench (1) at least by The roller (27) of first cylinder (21,41) of push-bench (1) carries out colliding and/or carrying out rolling on push rod (3).

3. according to the manufacture method of claim 1 or 2, it is characterised in that trailed roller (27) and/or the outer surface of workpiece (18) it was lubricated before it is by trailed roller (27).

Manufacture method the most according to claim 3, it is characterised in that only without roll (28) powered cylinder (21, 22,23,24,41,42,43,44) trailed roller (27), and/or outer surface of workpiece (18) at it by this kind of cylinder It is lubricated before (21,22,23,24,41,42,43,44).

Manufacture method the most according to claim 4, it is characterised in that only only have trailed roller (27) cylinder (21, 22,23,24,41,42,43,44) roller (27), and/or outer surface of workpiece (18) its by this kind of cylinder (21,22,23, 24,41,42,43,44) it is lubricated before.

Manufacture method the most according to any one of claim 1 to 5, it is characterised in that with rise stroke speed and/or The push rod (3) the ring bed by push-bench (1) of push-bench (1) is clashed into the stroke speed less than 4 meter per seconds.

Manufacture method the most according to any one of claim 1 to 6, it is characterised in that the billet (16) of perforation, the most directly To it arrive push-bench (1) the first cylinder (21,41) and with the roller (27) of described cylinder (21,41) and/or roll (28) Till contact, be placed on described push rod (3) by single positioner, and/or by individually push auxiliary device along Transmit towards the direction (6) of described cylinder (21,41).

8., for the method manufacturing metal tube from billet (15), wherein said billet (15) is first bored a hole, then at push-bench (1) stretching in and then finish rolling becomes pipe, wherein said push-bench (1) includes that at least two has the top of different top shank diameter (4) Bar assembly, it is characterised in that described billet (15) is bored a hole into has the internal diameter 17 mated with push rod diameter 4.

9., for the method manufacturing metal tube from billet (15), wherein said billet (15) is first bored a hole, then at push-bench (1) in stretching and then finish rolling become pipe, it is characterised in that the billet (15) of perforation on push-bench (1) with less than 7, preferred Extensibility less than 6 stretches.

Method the most according to claim 9, it is characterised in that not only above but also be connected to all of at push-bench (1) Only make the length of single times on unit before and after push-bench (1), or not only push-bench (1) and all of be connected to Unit before and after push-bench (1) is arranged to be served only for the length of single times.

11. are used for the method operating seamless pipe equipment (2), described seamless pipe equipment has perforating machine, be arranged in perforating machine after Push-bench (1) and be arranged in the finishing mill after push-bench (1), wherein in order to manufacture diameter from the billet (15) more than 7 English Very little or the metal tube of 17.78 centimetres, described billet (15) is first in perforating machine middle punch, and then in push-bench (1), stretching is also Then in finishing mill, finish rolling becomes pipe, it is characterised in that only processing or the length of single times of making.

12. operational approach according to claim 11, it is characterised in that billet (15) on push-bench (1) to be less than 7, the extensibility of preferably more than 6 stretches.

13. according to the method described in any one in claim 9 to 12, it is characterised in that billet (15) is push-bench (1) When boring a hole before upper processing, stretch with the extensibility of at least 1.2, preferably at least 1.5.

14. according to the method according to any one of claim 9 to 13, it is characterised in that perforating machine is Mannesmann piercing mill, especially It is taper skew rolling mill, and/or finishing mill is that stretching subtracts milling train.

15. push-bench (1), the cylinder (21,22,23,24) that it has a push rod (3) and at least two is placed in ring bed (26), It is characterized in that,

I () at least the first cylinder (21,41) in the crash direction (6) of push rod (3) is powered with at least one or can The roll (28) driven；And/or

(ii) push-bench (1) includes for the billet (16) of perforation is placed in the positioner on push rod (3), and/or is used for Will be located in the billet (16) rushing the perforation on device bar (3) along pushing that the direction (6) towards cylinder (21,22,23,24) is transmitted Device.

16. push-bench according to claim 15 (1), it is characterised in that at least one cylinder (21,22,23,24,41, 42,43,44) with roller (27) or the roll of four round passes forming cylinder (21,22,23,24,41,42,43,44) (28)。

17. push-bench according to claim 16 (1), it is characterised in that described cylinder (21,22,23,24,41,42, 43,44) with two driven rolls (28) and two traction rollers (27) or four traction rollers (27).

18. push-bench (1), it has a push rod (3) and at least two is placed in ring bed (26) cylinder (21,22,23,24, 41,42,43,44), it is characterised in that described cylinder (21,22,23,24,41,42,43,44) can laterally load ring bed (26) in.

19. push-bench according to claim 18 (1), it is characterised in that it is lateral that described ring bed (26) has at least two The cylinder storing apparatus (55) opened.

20. push-bench according to claim 19 (1), it is characterised in that each cylinder storing apparatus (55) be subordinated to Each cylinder storing apparatus (55), between the replacing position (51) of ring bed (26) side, be provided with cross drive device (74).

21. push-bench according to claim 20 (1), it is characterised in that roll changing carriage (50), it is arranged in ring bed (26) Side, and can moving in the way of being parallel to the crash direction (6) of push-bench (1), wherein said roll changing carriage (50) with The roller supporting device (54) that at least two is arranged on roll changing carriage (50) according to relevant replacing position (51) compartment of terrain.

22. push-bench according to claim 21 (1), it is characterised in that described roll changing carriage (50) is with at least two sets Two roller supporting devices (54), two roller supporting devices (55) being subordinated to the first support assembly (52) therein are according to phase Replacing position (51) compartment of terrain closed is arranged on roll changing carriage (50), and two cylinders being subordinated to the second support assembly (53) prop up Bearing apparatus (54) is arranged on roll changing carriage (50) according to relevant replacing position (51) compartment of terrain, two of which support assembly (52, 53) it is arranged on roll changing carriage (50) in the way of being parallel to the crash direction (6) skew side-play amount (60) of push-bench (1).

23. push-bench according to claim 22 (1), it is characterised in that described side-play amount (60) is less than ring bed (26) Length (30), preferably less than the first of the crash direction along push-bench (1) (6) of any one support assembly (52,53) Distance between supporting arrangement (54A) and last supporting arrangement (54D), especially less than any one support assembly (52, 53) distance (62) of two adjacent supporting arrangements (54).

24. according to the push-bench (1) according to any one of claim 19 to 23, it is characterised in that at least one cylinder accommodates Device (55) has the overload protection arrangement (75) of upwardly-openable and/or is parallel to the locking that cross drive device (74) acts on Device (76), the cylinder being positioned in cylinder storing apparatus (55) by described overload protection arrangement (21,22,23,24,41,42, 43,44) can move upward out when push-bench (1) transships, described locking device prevent cylinder (21,22,23,24,41,42, 43,44) direction along cross drive device (74) removes.

25. push-bench (1), it has a push rod (3) and at least two is placed in ring bed (26) cylinder (21,22,23,24, 41,42,43,44), it is characterised in that push rod guide has at least one vectoring aircraft with adjustable guiding aperture Structure (68).

26. push-bench according to claim 25 (1), it is characterised in that described guiding mechanism (68) has preferably can beat The guide support (70) opened, it is disposed with at least two by regulation instrument (72) adjustable ground and is respectively provided with for contacting top The guiding piece (71) of the guide surface (69) of bar (3).

27. push-bench (1), it has a push rod (3) and at least two is placed in ring bed (26) cylinder (21,22,23,24, 41,42,43,44), it is characterised in that the roller (27) of cylinder (21,22,23,24,41,42,43,44) or roll (28) along Direction, aperture is arranged in cylinder (21,22,23,24,41,42,43,44), and at least one cylinder (21,22,23,24, 41,42,43,44) with four rollers (27) of round passes forming cylinder (21,22,23,24,41,42,43,44) or roll Roller (28), and pass direction with the angle of 22.5 ° relative to the installation direction of cylinder (21,22,23,24,41,42,43,44) Tilt, and/or at least one cylinder (21,22,23,24,41,42,43,44) with three formed cylinders (21,22,23,24, 41,42,43,44) roller (27) of round pass or roll (28), and pass direction with the angle of 30 ° relative to cylinder The installation direction of (21,22,23,24,41,42,43,44) tilts.

28. seamless pipe equipment (2), it has perforating machine (64), especially Mannesmann piercing mill, and such as taper skew rolling mill, is arranged in Push-bench (1) after perforating machine (64) and be arranged in the finishing mill (65) after push-bench (1), especially stretching subtracts milling train, Wherein said seamless pipe equipment (2) is arranged based on aperture sequence (67), and push-bench (1) includes that at least two has difference The push rod assembly of push rod diameter (4), described seamless pipe equipment is characterised by, push-bench (1) includes that at least three has difference The push rod assembly of push rod diameter (4), wherein perforating machine (64) has at least three and has the Kong Xin (66) of different holes core diameter, and And first push rod diameter (4) push rod assembly and there is the Kong Xin of the first hole core diameter both correspond to aperture sequence (67) at least One common aperture.

29. for manufacturing diameter more than 7 inches or the seamless pipe equipment (2) of the metal tube of 17.78 centimetres, and it has perforating machine (64) push-bench (1) after, being arranged in perforating machine and be arranged in the finishing mill (65) after push-bench (1), it is characterised in that At least one unit of described seamless pipe equipment (2), the perforating machine (64) of the most described seamless pipe equipment (2), push-bench (1) With finishing mill (65) and other units, it is arranged to only use more than 7 inches or the metal tube of 17.78 centimetres to manufacture diameter In the length of single times.

30. seamless pipe equipment (2) according to claim 29, it is characterised in that the perforating machine of described seamless pipe equipment (2) (64), push-bench (1) and finishing mill (65) and preferably all of unit, in order to manufacture diameter more than 7 inches or 17.78 centimetres Metal tube and being arranged to be only used for the length of single times.

31. according to the seamless pipe equipment (2) described in claim 29 or 30, it is characterised in that described push-bench (1) is arranged to draw Rate of stretching is less than 7, preferably more than 6.

32. according to the seamless pipe equipment (2) according to any one of claim 29 to 31, it is characterised in that described perforating machine (64) it is arranged to extensibility and is at least 1.2, more preferably at least 1.5.

33. according to the seamless pipe equipment (2) according to any one of claim 29 to 32, it is characterised in that described seamless pipe sets Standby (2) are designed based on aperture sequence (67), and described push-bench (1) includes that at least two has different top shank diameter (4) Push rod assembly.

34. according to the seamless pipe equipment (2) according to any one of claim 29 to 33, it is characterised in that described perforating machine is Mannesmann piercing mill, especially taper skew rolling mill, and/or described finishing mill be stretching subtract milling train.