CN2356769Y - Electric induction hydraulic pipe expander - Google Patents
Electric induction hydraulic pipe expander Download PDFInfo
- Publication number
- CN2356769Y CN2356769Y CN 98229244 CN98229244U CN2356769Y CN 2356769 Y CN2356769 Y CN 2356769Y CN 98229244 CN98229244 CN 98229244 CN 98229244 U CN98229244 U CN 98229244U CN 2356769 Y CN2356769 Y CN 2356769Y
- Authority
- CN
- China
- Prior art keywords
- electric induction
- expanding top
- dolly
- pipe
- pipe machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- General Induction Heating (AREA)
Abstract
The utility model provides an electric induction hydraulic pipe expander capable of expanding the pipe when heated. The utility model comprises a middle frequency electric induction heater, a machine seat, a small carriage, a pipe expanding top head and a core rod, wherein, the core rod and the pipe expanding top head are arranged on the same axle, and one end of the core rod is connected with the leading-in end of the pipe expanding top head. The utility model is characterized in that the other end of the core rod is arranged on the machine seat by passing through the small carriage; the tail end of the small carriage is connected with a hydraulic device; the front end plate of the small carriage is provided with an opening and closing type baffle plate capable of being embraced and connected to the side wall of the core rod; the middle frequency electric induction heater is arranged at the front end of the machine seat; the pipe expanding top head is arranged in the middle frequency electric induction heater. The utility model has the advantages that the structure is simple, the deformation of the expanded pipe is even, and the cost is low.
Description
The utility model relates to a kind of expander equipment that small-bore seamless steel pipe is extended to heavy caliber seamless steel pipe.
Chinese patent CN1072359A discloses a kind of " cold expansion process of large-diameter thin-wall seamless steel pipe ", its technology point is that first two ends with seamless steel pipe utilize the extremely size of required caliber of heating of heating in medium frequency ejector sleeve machine and enlarging, then steel pipe is carried out pickling, clean, phosphatization, after saponification is lubricated, place it in by motor, gearbox, the expander dolly, frame, sleeve pipe, in the sleeve pipe of the special-purpose pipe expander that air clamper and plug constituted, by the air clamper gripping sleeve, the expansion mould of ejector sleeve machine is connected on the end of plug, makes expander dolly traction plug drive the expansion mould by motor and slides the expansion system of finishing steel pipe along the steel pipe inwall.The less than one of this method is that operation is many, and is time-consuming big; The 2nd, adopt a cover expander equipment to realize that the expansion system of pipe end, the technology that the back adopts another set of pipe expander to finish the expansion system of whole pipe also make its expander part of appliance many earlier, cost is big; The 3rd, by the motor-driven plug and expand mould and in treating expanding steel tube, move steel pipe is carried out cold expansion, clamps steel pipe and mode is difficult to control the uniformity deformation of steel pipe in expansion system process by clamp sleeve, make its expander quality be difficult to obtain assurance.
The purpose of this utility model is intended to overcome the above-mentioned deficiency of existing pipe expander, and a kind of disposable simple in structure, the reliable electric induction hydraulic extend pipe of institute's expander protonatomic mass machine that expands system of finishing is provided.
The purpose of this utility model is by adopting hydraulic means to drive dolly, and dolly drives and treats that expanding steel tube is heated by electric induction heater, and heated pipeline section finishes through expanding top simultaneously that this technical scheme of hole enlargement realizes.It is concrete to constitute and comprises intermediate frequency electric induction heater, support, dolly, expanding top and import with expanding top with an end of the coaxial setting of expanding top and hold the plug that joins, the other end that it is characterized in that described plug passes dolly and is installed on the support, tail end at dolly is connected to a hydraulic means, but be provided with the open-close type baffle plate of an obvolvent on the plug sidewall on the front end-plate of dolly, described intermediate frequency electric induction heater is located at the front end of support, and expanding top is located in the intermediate frequency electric induction heater.Open baffle plate during work, to wait to expand the base pipe sends into from the support tail end and is enclosed within on the plug, terminate at connecing on the section of drawing of expanding top before the base pipe, baffle plate closes, make its retaining be connected on the tail end of base pipe, open intermediate frequency electric induction heater and hydraulic means, hydraulic means slowly advances dolly, baffle plate on the dolly promotes the base pipe and advances to expanding the mould top along plug, electric induction heater heats the base pipe pipeline section by expanding top, make the base pipe finish hole enlargement under the situation of heating, the finished product pipeline section after the hole enlargement ejects electric induction heater under the lasting propelling of hydraulic means, the production tube after typing promptly gets hole enlargement after cooling off naturally.
The utility model is compared with existing pipe expander, has the following advantages:
One, adopt hydraulic means to drive little roof and move and wait to expand the base pipe, make the motion of base pipe keep good continuity and stability, thereby the wall thickness of institute's expander is even, deflection is little;
Carry out the technological means of expander when two, having adopted extension diameter section to the base pipe to carry out local heat, compare, saved the energy greatly, reduced the expander cost with other the pipe expander for the treatment of the whole heating of expander;
Three, owing to only the base pipe is carried out local heat, therefore reduced power requirement greatly, the cost of whole pipe expander is greatly reduced the intermediate frequency electric induction heater.
Four, except that using, also can be used as cold expansion machine and use as thermal expansion machine.
Below in conjunction with embodiment and accompanying drawing the utility model is described in further details.But content of the present utility model is not limited in present embodiment.
The structural representation of Fig. 1 present embodiment
The vertical view of Fig. 2 Fig. 1
Fig. 3 expanding top structural representation
The A of Fig. 4 open-close type baffle plate is to view
The B of Fig. 5 Fig. 1 is to view
The C of Fig. 6 plug is to view.
As shown in Figure 1, 2, support is made of forebay 20, afer bay 5 and base 21, and dolly 6 is located between the forward and backward frame, and an end of plug 9 passes forebay 20 and joins with expanding top 12, and the other end passes dolly 6 and is installed on the afer bay 5.Hydraulic means 1 is the hydraulic jack of two synchronization actions, and its telescopic arm 15 is connected on the end plate 14 of dolly 6.Intermediate frequency electric induction heater 11 is the commercially available prod, is located at the front of forebay 20, and expanding top 12 is arranged in heater.But the structure of the open-close type baffle plate 7 of obvolvent on plug 9 sidewalls is as shown in Figure 4, by two symmetries be hinged on the dolly front end-plate 13, the centre has and the half garden piece 21,22 and the lever type rope open-and-close mechanism of the corresponding half garden arc breach of diameter of mandrel are constituted.23 for waiting to expand the base pipe among the figure, and 24 is the lever of open-and-close mechanism, is hinged on the frame.25 is pull rope.
Can on the end plate 14 of dolly, same baffle plate 16 be set, earlier by baffle plate 16 retainings at the tail end of waiting to expand the base pipe to advance the base pipe, return again after the dolly stroke is intact, waiting that by 7 retainings of the baffle plate on the front end-plate tail end that expands the base pipe continues to advance the base pipe.The benefit of doing like this is half length that can reduce fuselage.
Fig. 3 has a taper type to connect a section of drawing 29 and a taper type changeover portion 26 for the structural representation of the expanding top 12 that present embodiment adopted, and can adopt the 1Cr18Ni9Ti material to make.Its taper type connects the tapering of the section of drawing and is advisable with 25～35 degree.
Still can connect the pipe 17 of passing by on one's way in the transition section end of expanding top, make to expand to make to be socketed in cooling and shaping on this pipeline section of passing by on one's way after bigbore production tube leaves expanding top, help obtaining the high production tube of flatness.
Still can be provided with one at the production tube port of export of support by topping roll 18, following rail roller 19, preceding roll 31, the guiding frame 28 that back roll 27 constitutes can further guarantee the flatness of production tube.
For improvement waits to expand the stressing conditions that the base pipe enters the expanding top section, a carrying roller 30 can be set at the front position place of the expanding top on the forebay 20 of support.
The replacement of considering expanding top to be satisfying the production tube that expands the various calibers of system, can the intermediate frequency electric induction heater be set to one and can adds from the movable intermediate frequency electric induction that the frame front end is separated and answer device.Can remove electric induction heater in case of necessity, change expanding top.Perhaps hyperphoric other expands mould, carries out cold pushing away to make the heavy caliber special section tubular product.
The hoisting type plate 3 that a motor 4 and has groove 36 can be set on afer bay 5, and referring to Fig. 5, being provided with on the correspondence position of plug can be for the groove 34,35 (referring to Fig. 6) of plate insertion.Mention and put down in the plate insertion groove 34,35, after plate enters for the base pipe with stationary core rod.37 rope woolding wheel among the figure, 38 for being connected the flexible strand between rope sheave and plate.
Claims (8)
1, electric induction hydraulic extend pipe machine, comprise intermediate frequency electric induction heater, support, dolly, expanding top and import the plug that end joins with an end and the expanding top of the coaxial setting of expanding top, the other end that it is characterized in that described plug passes dolly and is installed on the support, tail end at dolly is connected to a hydraulic means, but be provided with the open-close type baffle plate of an obvolvent on the plug sidewall on the front end-plate of dolly, described intermediate frequency electric induction heater is located at the front end of support, and expanding top is located in the intermediate frequency electric induction heater.
2, electric induction hydraulic extend pipe machine as claimed in claim 1, but it is characterized in that also being provided with the open-close type baffle plate of an obvolvent on the plug sidewall on the end plate of described dolly.
3, electric induction hydraulic extend pipe machine as claimed in claim 1 is characterized in that described expanding top has a taper type and connects the section of drawing and a taper type changeover portion.
4, electric induction hydraulic extend pipe machine as claimed in claim 3 is characterized in that the tapering that described frustum connects the section of drawing is 25～35 degree.
5, electric induction hydraulic extend pipe machine as claimed in claim 3 is characterized in that transition section end at described expanding top is connected to the pipe of passing by on one's way.
6, electric induction hydraulic extend pipe machine as claimed in claim 1 is characterized in that also being provided with the guiding frame that is made of roll at the production tube port of export of described support.
7, electric induction hydraulic extend pipe machine as claimed in claim 1 is characterized in that also being provided with a carrying roller at the front position place that is positioned at expanding top of support.
8, electric induction hydraulic extend pipe machine as claimed in claim 1 is characterized in that at described intermediate frequency electric induction heater being the movable intermediate frequency electric induction heater of a detachable support front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229244 CN2356769Y (en) | 1998-08-05 | 1998-08-05 | Electric induction hydraulic pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229244 CN2356769Y (en) | 1998-08-05 | 1998-08-05 | Electric induction hydraulic pipe expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356769Y true CN2356769Y (en) | 2000-01-05 |
Family
ID=33979164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229244 Expired - Fee Related CN2356769Y (en) | 1998-08-05 | 1998-08-05 | Electric induction hydraulic pipe expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356769Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631402B (en) * | 2009-07-25 | 2011-08-10 | 衡阳鸿大特种钢管有限公司 | Multi-section medium frequency heating method for pipe expanding set and device thereof |
| CN102189188A (en) * | 2011-03-22 | 2011-09-21 | 德新钢管（中国）有限公司 | Process for manufacturing seamless stainless steel pipe with large diameter through hot expanding |
| CN102189187A (en) * | 2011-03-22 | 2011-09-21 | 德新钢管（中国）有限公司 | Manufacturing process of thermal expansion diameter duplex seamless stainless steel pipe |
| CN104438897A (en) * | 2014-09-18 | 2015-03-25 | 张家港市和恒精工机械有限公司 | Special pipe expanding machine |
-
1998
- 1998-08-05 CN CN 98229244 patent/CN2356769Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631402B (en) * | 2009-07-25 | 2011-08-10 | 衡阳鸿大特种钢管有限公司 | Multi-section medium frequency heating method for pipe expanding set and device thereof |
| CN102189188A (en) * | 2011-03-22 | 2011-09-21 | 德新钢管（中国）有限公司 | Process for manufacturing seamless stainless steel pipe with large diameter through hot expanding |
| CN102189187A (en) * | 2011-03-22 | 2011-09-21 | 德新钢管（中国）有限公司 | Manufacturing process of thermal expansion diameter duplex seamless stainless steel pipe |
| CN104438897A (en) * | 2014-09-18 | 2015-03-25 | 张家港市和恒精工机械有限公司 | Special pipe expanding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |