CN1112036A - Technique and special apparatus for working superlong inside ribbed pipe - Google Patents
Technique and special apparatus for working superlong inside ribbed pipe Download PDFInfo
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- CN1112036A CN1112036A CN 94105060 CN94105060A CN1112036A CN 1112036 A CN1112036 A CN 1112036A CN 94105060 CN94105060 CN 94105060 CN 94105060 A CN94105060 A CN 94105060A CN 1112036 A CN1112036 A CN 1112036A
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Abstract
The method for working superlong internally ribbed pipe, also known coiled internally ribbed pipe, features that its reducing and ribbing are completed during continuous drawing procedure. During ribbing, a centripetal extruding force acting on pipe wall is generated by a planetary roller mechanism. The tool in pipe cavity comprises ribbing head and reducing core head capable of supporting the former.
Description
The present invention relates to a kind of metal pipe material processing technology of overlength and, belong to tubing internal-rib field shaping technique in the processing of chipless metal for implementing the custom-designed processing unit (plant) of this processing technology with internal-rib.
Inwall at metal pipe material (for example copper tube) processes internal-rib, can make efficient heat-exchanging pipe.Existing for the internal-rib moulding process of scale limit for length's metal pipe material than mature technique, a kind of special processing equipment that limit for length's copper pipe is carried out the internal-rib moulding is disclosed in the Chinese patent 92203648.3.But the internal-rib moulding process and the equipment of the overlength metal pipe material that does not limit for length (custom is called " coil pipe " on the industry) then there is no bibliographical information both at home and abroad.
The objective of the invention is to disclose a kind of internal-rib coil pipe processing technology, the present invention also aims to be provided as and implement above-mentioned technology and custom-designed processing unit (plant).
Processing technology disclosed by the invention is to finish undergauge-internal-rib moulding in the traction drawing process that processed tubing is continued, an entad extruding force that acts on the continuous rolling in the tube wall outside, internal-rib molding die position, this extruding force is multi-point equispaced on the tubing cross-section line at described position, the axial limiting that described internal-rib molding die relies on swedging core mark obtains supporting, and described internal-rib molding mode is the helical tooth mode.
The entad extruding force that corresponds to the internal-rib die head of the present invention is produced by planet roll-in mode, the rotation axis of planet roll-in and the axis of processed tubing, i.e. planet carrier axis different surface beeline each other.
Can produce through extruding or cutting dual mode according to different needs spiral internal-rib, a kind of mode in back can significantly reduce the required pulling capacity of traction tubing.
By implementing the custom-designed processing unit (plant) of above-mentioned technology, comprise that one places the undergauge in the processed tubing chamber to become the rib tool combinations, mainly form by undergauge floating core head and internal-rib molding die, the internal-rib molding die is connected with the coaxial supporting of floating core head rotationally, described internal-rib die head has the side helical tooth at least, comprise that also is located at the outer undergauge extruder member of processed tubing wall, corresponding setting with described floating core head, the outer extruder member of wherein corresponding with internal-rib die head setting is a planetary rollers wheel mechanism, running roller is distributed on the planet carrier, planet carrier drives through transmission mechanism, and in addition, it also comprises the drawing mechanism of a processed tubing.
Planetary rollers wheel axis and planet carrier axis are different surface beeline in the described planetary rollers wheel mechanism, i.e. running roller segment of a cylinder in contact site does not overlap with the tube wall bus during roll-in, angled angle.
For reducing the rotation friction at internal-rib die head supporting position, be provided with the plain cushion that contains kollag at the axially mounting position of internal-rib molding die and floating core head, kollag is located in the end face aperture of plain cushion.
Two kinds of forms of the general employing of internal-rib die head, a kind of is the extrusion modling die head that is provided with the side helical tooth, another kind is the cutting forming die head that is provided with side spiral cutting tooth and face cutting edge, the former makes inside pipe wall be squeezed into rib, the latter is then for cutting into rib, and obviously back a kind of operation resistance is a kind of far below preceding.
Processing technology disclosed in this invention and device, a kind of technical scheme of practicality is provided for the internal-rib moulding of random length overlength coil pipe, be specially adapted to the processing of path thin-wall copper pipe or aluminum pipe, adopt the technological parameter of this technical scheme institute's converted products (being efficient heat-exchanging pipe) should be able to reach designing requirement, required special equipment then should have and is easy to make and is suitable for advantage with existing tube drawing coordinative composition of equipments.
Below in conjunction with drawings and Examples the present invention is specified.
Fig. 1 is an internal-rib coil pipe processing unit (plant) overall structure sketch;
Fig. 2 is a kind of frame mode of internal-rib moulding assembly;
Fig. 3 is the adjustable internal-rib moulding assembly structure sketch of product external diameter;
Fig. 4 is the internal-rib moulding assembly with hollow Driven by Coaxial motor;
Fig. 5 is planetary gear axis and tubular axis line graph of a relation;
Fig. 6 is a chain-type coil pipe drawing haulage gear structure diagram;
Fig. 7 is the partial enlarged drawing of Fig. 6;
Fig. 8 is the A-A cutaway view of Fig. 7;
Fig. 9 is a cutting die head schematic diagram;
Figure 10 is lubricated plain cushion structure diagram;
Fig. 1 is a kind of overall schematic of internal-rib coil pipe processing unit (plant), and processed tubing is successively by internal-rib moulding assembly 2 and haulage gear 3 among the figure, and they are respectively by independently actuating unit driving.When internal-rib moulding during as series-operation of tube drawing equipment, can directly utilize the haulage gear of original equipment, for example the major diameter sheave saves special-purpose haulage gear 3.
Internal-rib moulding assembly mainly is made up of two parts, promptly is located at the internal-rib molding die and the floating core head combination of coil pipe inner chamber and is located at the outer pressing mechanism of coil pipe.The invention provides following three embodiment.
Example 1 is by shown in Figure 2.Conical surface floating core head 23 and internal-rib die head 22 be through connecting bolt 20,21 coaxial connections of nut among the figure, also is provided with lubricatedly with packing ring 24 between the end face of bolt 20 and core print 23, and above-mentioned parts constitute shaping mechanism in the pipe.Be provided with a planet running roller pressing mechanism in the outside of processed coil pipe 34, have at least 3 planet running rollers 28 to be distributed on the planet carrier 26,31 through planet wheel spindle 27, planet carrier 26,31 is in the both sides of planet running roller 28 respectively, the pair roller wheel forms freely-supported and holds, and they are supported on bearing spider 36 and the bearing gland 30 through bearing 25 again.Belt pulley 32 is connected through key 33 and planet carrier 31 outer ends, and motor is through belt 35 drive pulleys 32.The planet running roller 28 that is adopted in the present embodiment is made up of a conical surface and a face of cylinder, and its taper seat is corresponding with floating core head 23 in the pipe, finishes undergauge, and the interior die head 22 of its face of cylinder and pipe is corresponding, finishes the internal-rib moulding.This structure is not used fixedly undergauge external mold, so the action required pulling capacity is less, but planet running roller 28 bears axial force, so need to set up bearing 29 at its axially mounting face.The coil pipe external diameter that this device is processed is fixed, and is non-adjustable.
Example 2 discloses the adjustable coil pipe internal-rib of a kind of processing bore shaping mechanism, as shown in Figure 3.Planet running roller 28 cantilever support are on planet carrier 26 among the figure, and its planet wheel spindle 27 is an eccentric shaft, and the other end of eccentric shaft is provided with planetary gear 44, is in transmission connection with ring gear 41, establishes belt grooves on the ring gear 41, and motor drives ring gear 41 through belt 35 and rotates.This ring gear 41 also is bearing on the planet carrier 26, and a latch 42 is connected with planet carrier 26, and its outer end is in the strip hole of ring gear 41, and planet carrier 26 still is supported on bearing spider 36 and the bearing (ball) cover 30 through bearing 25.The other end at bearing spider 36 also is provided with a drawing-die frame 43, and reducing dies 40 is fixed wherein.28 of planet running rollers are finished the radial compression effect in this example, only establish column working, so do not bear axial force.Die head 22 in the pipe draws back a segment distance with core print 23, is connected with nut 21 by a stay bolt 20.When ring gear 41 rotated, 44 turns of band planetary gear made eccentric shaft 27 turn over an angle earlier during operation, planet running roller 28 is depressed, contact with processed coil pipe 34, can not rotate owing to planetary gear 44 this moment again, so planet carrier 26 beginnings are rotated synchronously with ring gear 41.Latch 42 can limit the torque that ring gear 41 is directly born in the position.Also be provided with the reduction torsion spring (not shown) on planetary gear 44, torsion spring one end is connected with planet carrier 26, and the other end is connected with planetary gear 44, like this after the driving force of ring gear 41 is removed, planetary gear 44 rotates to the direction that resets, and planet running roller 28 is lifted automatically, leaves coil pipe 34 lateral surfaces.
Planet carrier makes the rotating speed of planet carrier restricted all through belt transmission in above-mentioned two examples.Example 3 provides a device that is used for high-speed molding, as shown in Figure 4.Basic structure such as Fig. 2 of planet carrier 26,31 and planet running roller 28 among the figure, the high-speed electric expreess locomotive 47 of a band hollow shaft, as drive motors, its hollow shaft 46 directly is threaded with the outer end of planet carrier 26, and does not re-use the belt pulley transmission.Coil pipe 34 directly passes the hollow shaft 46 of motor 47, and bearing bracket stand 36 can directly connect on the end cap of motor 47.
The axis of the axis of planet running roller 28 and coil pipe 34 is the different surface beeline relation among the present invention, and promptly the segment of a cylinder of planet running roller 28 coil pipes 34 in the contact site becomes a low-angle angle.Their relation as shown in Figure 5, figure cathetus L1 is the axis of coil pipe 34, it is the planet carrier axis, straight line L2 is undeflected desirable planetary gear axis, straight line L3 then is the actual axis of planet running roller 28, and L2 and L3 are in the planar S, and generally this plane is vertical with the determined plane of L2 and L1, because L2 and L3 are in an angle, cause pushing the segment of a cylinder L4(tube wall bus at position) and L5(running roller face bus) also in an angle.K is a coil pipe drawing direction among the figure, and P is the direction of rotation of planet running roller 28.
The present invention's a kind of chain-drive mechanism that has been coil pipe haulage gear specialized designs, as Fig. 6, Fig. 7 and shown in Figure 8, to be that the I of Fig. 6 is local amplify Fig. 7, and Fig. 8 is the A-A view of Fig. 7.Be located at coil pipe 34 both sides to two cover chain transmission symmetry among the figure, drive sprocket 51,52 backward rotation, the chain 53,54 in the middle of making moves in the same way.The drawing palm 57,58 is set on the supporting plate 55,56 of chain, and drawing palm central authorities are provided with half slot, just can be with the processed pipe obvolvent.Be provided with pressuring chain plate 61,62 in the outside of central chain, its overhang bracket is on the roller 59,60 of chain, and the outside of pressuring chain plate 61,62 also is provided with hold-down bolt 63,64, to regulate the cohesive force of the drawing palm to coil pipe.
Fig. 9 is a kind of rib die head schematic diagram that cuts into, and it has side helical tooth 70, also is provided with front end face cutting edge 71, and this die head cuts into rib with inside pipe wall, can effectively reduce the processing resistance.
Figure 10 is the lubricated plain cushion schematic diagram that is located at rib shaping mould head and floating core head supporting position, has indenting aperture 72 on its end face, has kollag 73 in the hole.When the plain cushion pressurized, kollag 73 is extruded to supporting end face, lubricate.
Claims (13)
1, a kind of processing technology of superlong inside ribbed pipe, it is characterized in that, in continuous traction drawing process, finish and contract through-internal-rib moulding to processed tubing, its internal-rib moulding comprises an entad extruding force that acts on the continuous rolling in the tube wall outside, internal-rib molding die position, this extruding force is multi-point equispaced on the wall cross-section line, the axial limiting that described internal-rib molding die relies on the undergauge floating core head obtains supporting, and described internal-rib is the helical tooth moulding.
2, press the processing technology of the described superlong inside ribbed pipe of claim 1, it is characterized in that, the described entad extruding force that acts on the tube wall outside, internal-rib molding die position is a planet rolling roll-in mode, and the rotation axis of described planet rolling and the axis of processed tubing are different surface beeline.
3, by the processing technology of claim 1 or 2 described superlong inside ribbed pipes, it is characterized in that described helical tooth internal-rib is by extrusion modling.
4, by the processing technology of claim 1 or 2 described superlong inside ribbed pipes, it is characterized in that described helical tooth internal-rib is by cutting forming.
5, a kind of superlong inside ribbed pipe special apparatus for working, it is characterized in that this device is provided with one and places the undergauge in the processed tubing chamber to become the rib tool combinations, at least comprise undergauge floating core head and internal-rib molding die, described internal-rib die head is connected with the coaxial supporting of floating core head rotationally, and this internal-rib die head has the side helical tooth at least;
Be located at the outer undergauge extruder member combination of processed tubing wall for one, with the corresponding setting of described floating core head and internal-rib die head, the outer extruder member of wherein corresponding with internal-rib die head setting is a planetary rollers wheel mechanism, and running roller is distributed in planet carrier, and planet carrier drives through transmission mechanism;
Also be provided with the drawing mechanism of a processed tubing.
6, by the described superlong inside ribbed pipe special apparatus for working of claim 5, it is characterized in that described planetary rollers wheel axis and planet carrier center line are different surface beeline.
7, by claim 5 or 6 described superlong inside ribbed pipe special apparatus for working, it is characterized in that, be provided with a reducing dies, corresponding setting in the described undergauge extruder member with floating core head.
8, by the described superlong inside ribbed pipe special apparatus for working of claim 7, it is characterized in that, also be provided with planetary gear on the described planetary rollers wheel shaft, be connected with a ring gear gear drive, this ring gear is driven by transmission mechanism.
9, by claim 5 or 6 described superlong inside ribbed pipe special apparatus for working, it is characterized in that, also be provided with a cone surface of bit that is used for undergauge on the planet running roller in the described undergauge extruder member, the corresponding setting of described floating core head with this taper seat.
10, by the described superlong inside ribbed pipe special apparatus for working of claim 9, it is characterized in that described planet carrier directly is connected with the drive motors axle is coaxial, this drive motors axle is a hollow shaft.
11, by claim 5 or 6 described superlong inside ribbed pipe special apparatus for working, it is characterized in that described internal-rib die head also is provided with the building up by welding tooth.
12, by claim 5 or 6 described superlong inside ribbed pipe special apparatus for working, it is characterized in that, become the internal-rib molding die in the rib tool combinations and the axially mounting position of floating core head to be provided with the plain cushion that contains kollag at described undergauge, kollag is located in the aperture of plain cushion end face.
13, by claim 5 or 6 described superlong inside ribbed pipe special apparatus for working, it is characterized in that described drawing mechanism is a kind of chain transmission clip claw mechanism, two cover driving-chains are located at the both sides of processed pipe symmetrically, their drive sprocket backward rotation, on every joint supporting plate of driving-chain, be equipped with the drawing palm, the drawing palm has the half slot of obvolvent processed pipe, also is provided with pressuring chain plate in the outside of central chain, and the outside of roller is supported on the end of this pressuring chain plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105060 CN1112036A (en) | 1994-05-16 | 1994-05-16 | Technique and special apparatus for working superlong inside ribbed pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105060 CN1112036A (en) | 1994-05-16 | 1994-05-16 | Technique and special apparatus for working superlong inside ribbed pipe |
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| Publication Number | Publication Date |
|---|---|
| CN1112036A true CN1112036A (en) | 1995-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 94105060 Pending CN1112036A (en) | 1994-05-16 | 1994-05-16 | Technique and special apparatus for working superlong inside ribbed pipe |
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| CN (1) | CN1112036A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172812A (en) * | 2010-12-31 | 2011-09-07 | 马志强 | Hollow aluminium division bar continuous moulding method |
| CN101827665B (en) * | 2007-10-17 | 2012-07-04 | 住友金属工业株式会社 | Production method of steel pipe with inner rib and steel pipe with inner rib |
| CN103752955A (en) * | 2013-12-15 | 2014-04-30 | 四川惊雷科技股份有限公司 | Three-dimensional ribbed tube machining machine tool |
| CN103924979A (en) * | 2014-04-30 | 2014-07-16 | 中煤邯郸特殊凿井有限公司 | Frozen liquid supply pipe pulling device |
| CN104759502A (en) * | 2015-03-17 | 2015-07-08 | 中国科学院金属研究所 | Processing method for aluminum or aluminum alloy pipe with thread inner tendon |
-
1994
- 1994-05-16 CN CN 94105060 patent/CN1112036A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827665B (en) * | 2007-10-17 | 2012-07-04 | 住友金属工业株式会社 | Production method of steel pipe with inner rib and steel pipe with inner rib |
| CN102172812A (en) * | 2010-12-31 | 2011-09-07 | 马志强 | Hollow aluminium division bar continuous moulding method |
| CN102172812B (en) * | 2010-12-31 | 2012-11-07 | 马志强 | Hollow aluminium division bar continuous moulding method |
| CN103752955A (en) * | 2013-12-15 | 2014-04-30 | 四川惊雷科技股份有限公司 | Three-dimensional ribbed tube machining machine tool |
| CN103924979A (en) * | 2014-04-30 | 2014-07-16 | 中煤邯郸特殊凿井有限公司 | Frozen liquid supply pipe pulling device |
| CN104759502A (en) * | 2015-03-17 | 2015-07-08 | 中国科学院金属研究所 | Processing method for aluminum or aluminum alloy pipe with thread inner tendon |
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