CN101020366A - Hydraulic press for thickening drill pipe without excavation - Google Patents
Hydraulic press for thickening drill pipe without excavation Download PDFInfo
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- CN101020366A CN101020366A CN 200610105271 CN200610105271A CN101020366A CN 101020366 A CN101020366 A CN 101020366A CN 200610105271 CN200610105271 CN 200610105271 CN 200610105271 A CN200610105271 A CN 200610105271A CN 101020366 A CN101020366 A CN 101020366A
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Abstract
The present invention relates to heavy metallurgical machinery, and is especially one kind of hydraulic press for thickening drill pipe. The hydraulic press consists of at least one vertical hydraulic press with integral frame and one horizontal hydraulic press with combined frame connected with the vertical hydraulic press. It features the horizontal walking beam centering device on the horizontal hydraulic press, and the high precision displacement sensor connected to the centering device. The hydraulic press may be used in thickening drill pipe and oil pipe, and has long service life, high product concentricity and long effective work stroke.
Description
Technical field
The present invention relates to a kind of heavy metallurgical machinery steel pipe plastic working device, particularly a kind of hydraulic press for thickening drill pipe without excavation.
Background technology
Pipe end thickening machine in using at present has two kinds of structures.First kind of structure is by the exploitation of German MEER company, and its frame is " C " shape steel plate structural member.On " C " shape structural member framework, two ram cylinders are installed respectively.One of them vertical oil cylinder is implemented steel pipe to pipe and is clamped, and a cross cylinder is implemented end upsetting.The main advantage of this structure is that structure is simple relatively, shortcoming mainly is: 1. frame stiffness deficiency, the strain of framework causes product overlap inevitably to occur when implementing thickening after clamping, can't satisfy the requirement of multi-pass following process and end product quality, inter process must carry out a large amount of reconditionings.2. owing to the not enough inhomogeneous deformation that occurs of frame stiffness causes clamping cylinder must bear certain side force, increased the weight of the wearing and tearing of cylinder body and sealing, reduce service life.3. the center of drift is unadjustable, will make cross cylinder and piston thereof bear side force owing to exist inevitable eccentric force, center to regulate in actual production, causes the wearing and tearing of oil cylinder and sealing thereof to be accelerated, and reduce service life.4. the unadjustable product quality that causes thickening in the center of drift descends and instability.5. the horizontal throw of drift is subjected to structural constraint, all is not more than 750mm, can't realize thickening to the product (as non-excavation thickening drilling rod) that requires big stroke.
Second kind of structure made by Xi'an Heavy Machinary Research Institute, and its frame is the integral solder framework.At the top center position of integral solder framework a ram cylinder is housed, two ram cylinders are arranged in both sides, and these three oil cylinders are formed vertical clamping cylinder group pipe is implemented the steel pipe clamping.Rear side at the integral solder framework is installed cross cylinder, and its piston rod is implemented the steel pipe thickening by the hole on the frame to pipe.The thickening drift is installed in the piston rod front end of cross cylinder.The advantage of this structure is the good rigidly of framework, can realize the product non-trimming, and most of products need not the inter process reconditioning, and product quality is higher.Its shortcoming is that the center of 1. drift is unadjustable, owing to exist inevitable eccentric force, center to regulate in actual production will to make cross cylinder and piston thereof bear side force, causes its wearing and tearing of oil cylinder to be accelerated, and reduce service life.2. the unadjustable product quality that causes thickening in the center of drift descends and instability.3. the horizontal throw of drift is subjected to structural constraint, all is not more than 750mm, can't realize thickening to the product (as non-excavation thickening drilling rod) that requires big stroke.
Summary of the invention
The purpose of this invention is to provide a kind of hydraulic press for thickening drill pipe without excavation, it can realize that the integral solder frame rigidity is strong to the heavy wall tubing of non-excavation thickening drilling rod, API regulation and stipulation and the thickening of thickening drilling rod, and clamping force is enough, can regulate oil cylinder and sealing long service life by arts demand; By the moving beam aligning device of level the product concentricity is guaranteed, and effectively impulse stroke is long.
The object of the present invention is achieved like this, design a kind of hydraulic press for thickening drill pipe without excavation, it is connected and composed by the horizontal hydraulic pressure machine of a general frame vertical hydraulic machine and a group frame at least, it is characterized in that: the moving beam aligning device of the level that is connected with on the horizontal hydraulic pressure machine is connected with high accuracy displacement sensor on the center adjustment device.
Described general frame vertical hydraulic machine body is the integral solder frame structure, and it is by vertical integral solder framework 1, main plug cylinder 2, side cylinder 3, vertically moving beam 4, die holder 5 connect and compose; The vertical hydraulic machine is a triplex structure, and middle cylinder is main plug cylinder 2, and in vertical integral solder framework 1 entablature middle part, two side cylinders 3 are piston cylinder, respectively in the both sides of main plug cylinder 2; Main plug cylinder 2 is connected on the vertical moving beam 4 with two side cylinder 3 bottoms, and vertically moving beam 4 is fixedly connected on the die holder 5.
Described vertical hydraulic machine is the single cylinder structure, and main plug cylinder 2 is a piston cylinder, and piston rod is connected with vertical moving beam 4, is connected with the motion guide plate of vertical moving beam 4 at the front and back inner surface of vertical integral solder framework 1.
Described horizontal hydraulic pressure machine is the pre-tight frame single cylinder structure of combination, and it is made up of four girts 7, the back rest 10, punch holder 6, the moving beam of level and guider 8 thereof, cross cylinder 9, motion detection apparatus 11; The rear column of vertical integral solder framework 1 is the front-axle beam of horizontal hydraulic pressure machine, connect the back rest 10 by four girts 7 and constitute the horizontal hydraulic pressure machine frame, cross cylinder 9 is a piston cylinder, its tail end is in the back rest 10 outsides, and the rear column inner chamber that its other end is enclosed within vertical integral solder framework 1 is connected with it; Be connected with punch holder 6 on moving beam of level and guider 8 thereof, drift one end on the punch holder 6 packs into vertical integral solder framework 1 inner chamber; Motion detection apparatus 11 is connected on moving beam of level and the guider 8 thereof, is connected with the center adjustment device on moving beam of level and the guider 8 thereof, is connected with high accuracy displacement sensor on the center adjustment device.
Described center adjustment device comprises that at least level moves beam 12, girt 7, slide plate 13, adjusting screw(rod) 19, horizontal slide 14, vertical sliding 15; The moving beam 12 of level is positioned at the center of four girts 7, and on girt 7, slide by symmetrical two horizontal slides 14 and four vertical sliding 15 and slide plate 13, connecting bolt 16, piston shoes 17, ball pad 18, adjusting screw(rod) 19, mother nut 20, locking nut 21, slide plate 13 is formed sliding pair with girt 7, and the gap between the slide plate pair can be adjusted by adjusting screw(rod) 19.
Relative position and the depth of parallelism≤0.2mm/m between the thickening die cavity center line on punch stroke on the described punch holder 6 and the blackening bath press clamp mechanism, between the operating cylinder center line of moving beam center and horizontal hydraulic pressure machine.
The nominal capacity of the nominal capacity of described vertical hydraulic machine/horizontal hydraulic pressure machine is 1.5～2/1, the motor-driven beam stroke of vertical hydraulic 300～500mm, the motor-driven beam stroke of horizontal hydraulic pressure 600～1000mm.
The nominal capacity of described vertical hydraulic machine is 4～8MN, and the nominal capacity of horizontal hydraulic pressure machine is 2～4MN.
Characteristics of the present invention are: it mainly is made up of a vertical hydraulic machine and a horizontal hydraulic pressure machine, wherein the vertical hydraulic machine is by integral solder framework 1, main plug cylinder 2, two side cylinders 3, vertically moving beam 4, die holder 5 etc. are formed, the horizontal hydraulic pressure machine is made up of punch holder 6, girt 7, the moving beam of level and guider 8 thereof, cross cylinder 9, the back rest 10 etc., also has motion detection apparatus 11 and other parts.With non-excavation thickening drilling rod is major product, can realize the heavy wall tubing of non-excavation thickening drilling rod, API regulation and stipulation and the thickening of thickening drilling rod, form by a horizontal hydraulic pressure machine organic assembling with general frame vertical hydraulic machine and a group frame, the vertical hydraulic machine is used to clamp blank, and the horizontal hydraulic pressure machine is used to implement partial plastic forming.The vertical hydraulic machine is vertical integral solder frame structure hydraulic press, can as required the work master cylinder be designed to plunger case (drawback piston cylinder) form or piston cylinder form.Integral solder frame strength height, the rigidity height, the framework strain is little and even when implementing thickening.The horizontal hydraulic pressure machine is a horizontal (double action) oil hydraulic, the front-axle beam of general frame double as horizontal hydraulic pressure machine, the group frame rigidity height of horizontal hydraulic pressure machine.Horizontal cylinder is a piston cylinder.Punch holder is connected with the horizontal cylinder piston rod by the moving beam of level.Working flushing head is installed in the punch holder front end.The kinematic accuracy that adjustable whole punch (drift) can be regulated in the moving beam center of level, the depth of parallelism of assurance punch stroke route and die cavity.Four pull bar double as move the motion guide bar of beam in level.The tube quality produced on this hydraulic press for thickening drill pipe without excavation is high and stable, and product non-trimming, most of products need not the inter process reconditionings, satisfied the requirement of multi-pass following process and end product quality.
It has: 1, the integral solder framework of hydraulic press for thickening drill pipe without excavation has good rigidity, and clamping force is enough and can regulate by arts demand, has satisfied the needs of non-excavation drill pipe thickening technology fully.
2, be provided with the moving beam aligning device of level.The horizontal hydraulic pressure machine frame of being made up of integral solder framework, four girts and the back rest has high strength and high rigidity.Six groups of guiding governor motions are set on the moving beam of level, by the relative position between six spigot surfaces on the moving beam center of adjustment level and four girts, can adjust the kinematic accuracy that is installed in the punch (drift) in the punch holder that is connected with the moving beam of level, guarantee between punch (drift) stroke route and the thickening die cavity center line that is installed on the blackening bath press clamp mechanism, move relative position and the depth of parallelism≤0.2mm/m between the operating cylinder center line of beam center and horizontal hydraulic pressure machine, the product concentricity is guaranteed.Simultaneously effectively protected oil cylinder to bear the harm of side force.
3, effective impulse stroke of cross cylinder reaches 1000mm, can satisfy the heavy wall tubing of non-excavation thickening drilling rod, API regulation and stipulation and the process for upsetting needs of thickening drilling rod.The nominal capacity of the nominal capacity of vertical hydraulic machine/horizontal hydraulic pressure machine is 1.5～2/1, the motor-driven beam stroke of vertical hydraulic 300～500mm, the motor-driven beam stroke of horizontal hydraulic pressure 600～1000mm.The nominal capacity of vertical hydraulic machine is 4～8MN, and the nominal capacity of horizontal hydraulic pressure machine is 2～4MN.
By above measure, guaranteed the product non-trimming, most of products need not the inter process reconditioning, has satisfied the requirement of multi-pass following process and end product quality.Steel pipe thickening quality is reached advanced world standards.The reliability and the durability of equipment also effectively improve.
Description of drawings
The present invention will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is the example structure schematic diagram;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1;
Fig. 5 is the partial enlarged drawing of Fig. 4.
Among the figure: 1, vertical integral solder framework; 2, main plug cylinder; 3, side cylinder; 4, vertically moving beam; 5, die holder; 6, punch holder; 7, girt; 8, moving beam of level and guider thereof; 9, cross cylinder; 10, the back rest; 11, motion detection apparatus; 12, the moving beam of level; 13, slide plate; 14, horizontal slide; 15, vertical sliding; 16, connecting bolt; 17, piston shoes; 18, ball pad; 19, adjusting screw(rod); 20, mother nut; 21, locking nut.
The specific embodiment
Embodiment as shown in Figure 1, this hydraulic press for thickening drill pipe without excavation, it is design improvement on the hydraulic press for thickening drill pipe without excavation basis that the former sale of Xi'an Heavy Machinary Research Institute is made, and it is formed by a horizontal hydraulic pressure machine combination with general frame vertical hydraulic machine and a group frame.The vertical hydraulic machine is used to clamp blank, and the horizontal hydraulic pressure machine is used to implement partial plastic forming.Vertical hydraulic machine body is the integral solder frame structure, and it is by vertical integral solder framework 1, main plug cylinder 2, side cylinder 3, vertically moving beam 4, die holder 5 connect and compose; The vertical hydraulic machine can adopt triplex structure and two kinds of patterns of single cylinder structure.When adopting triplex structure, main plug cylinder is connected with moving beam, and two side cylinders are piston cylinder, are installed in the both sides, front and back of framework upper prop plug cylinder; Middle cylinder is main plug cylinder 2, is located at vertical integral solder framework 1 entablature middle part, can adopt whole processing, and two side cylinders 3 are piston cylinder, respectively in the both sides of main plug cylinder 2, be welded on jointly on the vertical integral solder framework 1, and whole processing; Main plug cylinder 2 is sitting on the vertical moving beam 4 with two side cylinder 3 bottoms, and vertically moving beam 4 is fixedly connected on the die holder 5.The vertical hydraulic machine also can be designed to the single cylinder structure, when adopting the single cylinder structure, main plug cylinder 2 is a piston cylinder, be welded on the framework and whole processing, piston rod is connected with vertical moving beam 4, vertical moving beam 4 has linear motion guide device, and the motion guide plate of vertical moving beam 4 is housed at the front and back inner surface of vertical integral solder framework 1.
Side at vertical hydraulic machine body is connected with the horizontal hydraulic pressure machine, the horizontal hydraulic pressure machine is combination pretension frame structure, the horizontal hydraulic pressure machine is the single cylinder structure, and it is made up of four girts 7, the back rest 10, punch holder 6, the moving beam of level and guider 8 thereof, cross cylinder 9, motion detection apparatus 11; Four double simultaneously motion guide bars of doing horizontal hydraulic pressure machine moved cross beam of girt 7.The die die joint is parallel with horizontal plane, and upper and lower die is installed in the upper and lower die holder by screw, pressing plate etc. respectively, and punch (drift) is installed on the punch holder by special screw thread.
Be the flat forging hydraulic machine of a kind of horizontal parting, be mainly used in the end upsetting operation of non-excavation thickening drilling rod; Can realize blank is carried out local forging and molding, also can realize operations such as punching, perforation, card are thin, hole enlargement, cut-out, bending, extruding.The rear column position of vertical integral solder framework 1 connects the back rest 10 by four girts 7 and constitutes the horizontal hydraulic pressure machine frame as the front-axle beam of horizontal hydraulic pressure machine, and it has high strength and high rigidity.Cross cylinder 9 is a piston cylinder, its tail end is in the back rest 10 outsides, its other end puts in the back rest 10 and is connected with moving beam of level and guider 8 thereof, on moving beam of level and guider 8 thereof punch holder 6 is installed rigidly also, drift one end that connects on the punch holder 6 puts in the vertical integral solder framework 1; Motion detection apparatus 11 is connected on moving beam of level and the guider 8 thereof, referring to shown in Figure 3.Moving beam of level and guider 8 thereof are provided with the center adjustment device; high accuracy displacement sensor is housed; be used for the motion control of the moving beam of level; referring to shown in Figure 4; guarantee the depth of parallelism of punch stroke route and die cavity, the product concentricity is guaranteed and has effectively protected cross cylinder 9 to bear the harm of side force.
For the long material of end partial plastic forming, can only adopt the front column position opening input and output material of vertical integral solder framework.As shown in Figure 2, in the design of the blank input and output position of vertical integral solder framework 1 rectangular opening being arranged, is the passage of blank input and output mould.The also double simultaneously patrix stripper apparatus of doing after forging.
Fig. 4 is the C-C cutaway view of Fig. 1; Be that the center adjustment apparatus structure schematic diagram that is provided with on moving beam of level and the guider 8 thereof, center adjustment device comprise that at least level moves beam 12, girt 7, slide plate 13, adjusting screw(rod) 19, horizontal slide 14, vertical sliding 15; The moving beam 12 of level is positioned at the center of four girts 7, and on girt 7, slide by symmetrical two horizontal slides 14 and four vertical sliding 15 and slide plate 13, connecting bolt 16, piston shoes 17, ball pad 18, adjusting screw(rod) 19, mother nut 20, locking nut 21, slide plate 13 is formed sliding pair with girt 7, and the gap between the slide plate pair can be adjusted by adjusting screw(rod) 19.
Fig. 5 is the partial enlarged drawing of Fig. 4; I represents governor motion among the figure, by being made up of connecting bolt 16, piston shoes 17, ball pad 18, adjusting screw(rod) 19, mother nut 20, locking nut 21.Piston shoes 17 are connected with slide plate 13 by connecting bolt 16, and ball pad 18, adjusting screw(rod) 19, mother nut 20, locking nut 21 are connected slide plate 13 on the vertical sliding 15, and are connected by the moving beam 12 of vertical sliding 15 and level.By the relative position between can the adjustment level moving beam 12 centers of artificial rotation adjusting screw(rod) 19 and the girt 7, thus moving beam 12 centers of adjustment level and be installed between the thickening die cavity center line on the blackening bath press clamp mechanism, move the relative position and the depth of parallelism between the operating cylinder center line of beam center and horizontal hydraulic pressure machine.
With the hydraulic press for thickening drill pipe without excavation is the non-excavation drill pipe thickening production line that capital equipment is formed, be mainly used in the end upsetting operation of non-excavation thickening drilling rod, the nominal capacity of vertical hydraulic machine is 4～8MN, the nominal capacity of horizontal hydraulic pressure machine is 2～4MN, and the nominal capacity of the nominal capacity of vertical hydraulic machine/horizontal hydraulic pressure machine is in (1.5～-2): 1 ratio design; The motor-driven beam stroke of vertical hydraulic 300～500mm, the motor-driven beam stroke of horizontal hydraulic pressure 600～1000mm.
Hydraulic press for thickening drill pipe without excavation is suitable for forming various special local plastic forming production lines as the capital equipment of local plastic moulding as a kind of horizontal hydraulic forging press, and the forging ability of hydraulic press need and design by the actual process of product of production line.
The die die joint is parallel with horizontal plane, is the flat forging hydraulic machine of a kind of horizontal parting.Can realize blank is carried out local forging and molding, also can realize operations such as punching, perforation, card are thin, hole enlargement, cut-out, bending, extruding.
Claims (8)
1, hydraulic press for thickening drill pipe without excavation, it is connected and composed by the horizontal hydraulic pressure machine of a general frame vertical hydraulic machine and a group frame at least, it is characterized in that: the moving beam aligning device of the level that is connected with on the horizontal hydraulic pressure machine is connected with high accuracy displacement sensor on the center adjustment device.
2, hydraulic press for thickening drill pipe without excavation according to claim 1, it is characterized in that: described general frame vertical hydraulic machine body is the integral solder frame structure, and it is by vertical integral solder framework (1), main plug cylinder (2), side cylinder (3), vertically moving beam (4), die holder (5) connect and compose; The vertical hydraulic machine is a triplex structure, and middle cylinder is main plug cylinder (2), and in vertical integral solder framework (1) entablature middle part, two side cylinders (3) are piston cylinder, respectively in the both sides of main plug cylinder (2); Main plug cylinder (2) is connected on the vertical moving beam (4) with two side cylinders (3) bottom, and vertically moving beam (4) is fixedly connected on the die holder (5).
3, hydraulic press for thickening drill pipe without excavation according to claim 1, it is characterized in that: described general frame vertical hydraulic machine is the single cylinder structure, main plug cylinder (2) is a piston cylinder, piston rod is connected with vertical moving beam (4), is connected with the motion guide plate of vertical moving beam (4) at the front and back inner surface of vertical integral solder framework (1).
4, hydraulic press for thickening drill pipe without excavation according to claim 1, it is characterized in that: the horizontal hydraulic pressure machine of described group frame is the pre-tight frame single cylinder structure of combination, and it is made up of four girts (7), the back rest (10), punch holder (6), the moving beam of level and guider (8) thereof, cross cylinder (9), motion detection apparatus (11); The rear column of vertical integral solder framework (1) is the front-axle beam of horizontal hydraulic pressure machine, connect the back rest (10) by four girts (7) and constitute the horizontal hydraulic pressure machine frame, cross cylinder (9) is a piston cylinder, its tail end is in the back rest (10) outside, and the rear column inner chamber that its other end is enclosed within vertical integral solder framework (1) is connected with it; Be connected with punch holder (6) on moving beam of level and guider (8) thereof, drift one end on the punch holder (6) packs into vertical integral solder framework (1) inner chamber; Motion detection apparatus (11) is connected on moving beam of level and the guider (8) thereof, is connected with the center adjustment device on moving beam of level and the guider (8) thereof, is connected with high accuracy displacement sensor on the center adjustment device.
5, hydraulic press for thickening drill pipe without excavation according to claim 4 is characterized in that: described center adjustment device comprises that at least level moves beam (12), girt (7), slide plate (13), adjusting screw(rod) (19), horizontal slide (14), vertical sliding (15); Level is moved the center that beam (12) is positioned at four girts (7), and go up at girt (7) and slide by symmetrical two horizontal slides (14) and four vertical sliding (15) and slide plate (13), connecting bolt (16), piston shoes (17), ball pad (18), adjusting screw(rod) (19), mother nut (20), locking nut (21), slide plate (13) is formed sliding pair with girt (7), and adjusting screw(rod) (19) adjustment can be passed through in the gap between the slide plate pair.
6, hydraulic press for thickening drill pipe without excavation according to claim 4 is characterized in that: relative position and the depth of parallelism≤0.2mm/m between the thickening die cavity center line on punch stroke on the described punch holder (6) and the blackening bath press clamp mechanism, between the operating cylinder center line of moving beam center and horizontal hydraulic pressure machine.
7, hydraulic press for thickening drill pipe without excavation according to claim 1, it is characterized in that: the nominal capacity of the nominal capacity of described general frame vertical hydraulic machine/horizontal hydraulic pressure machine is 1.5～2/1, the motor-driven beam stroke of general frame vertical hydraulic 300～500mm, the motor-driven beam stroke of the horizontal hydraulic pressure of group frame 600～1000mm.
8, hydraulic press for thickening drill pipe without excavation according to claim 1 is characterized in that: the nominal capacity of the horizontal hydraulic pressure machine of described group frame is 4～8MN, and the nominal capacity of the horizontal hydraulic pressure machine of group frame is 2～4MN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101052719A CN100484746C (en) | 2006-12-26 | 2006-12-26 | Hydraulic press for thickening drill pipe without excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101052719A CN100484746C (en) | 2006-12-26 | 2006-12-26 | Hydraulic press for thickening drill pipe without excavation |
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| Publication Number | Publication Date |
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| CN101020366A true CN101020366A (en) | 2007-08-22 |
| CN100484746C CN100484746C (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101052719A Expired - Fee Related CN100484746C (en) | 2006-12-26 | 2006-12-26 | Hydraulic press for thickening drill pipe without excavation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102258969A (en) * | 2011-05-20 | 2011-11-30 | 贵州航天天马机电科技有限公司 | Ejection mechanical equipment |
| CN103272981A (en) * | 2013-06-17 | 2013-09-04 | 南通普蒙盛机械制造有限公司 | Bidirectional parting continuous forging system of forming die of pipe end upsetting device |
| CN105436374A (en) * | 2015-12-01 | 2016-03-30 | 中国重型机械研究院股份公司 | Overall thickening equipment for heavy weight drill rod pipe end |
| CN107186141A (en) * | 2017-07-04 | 2017-09-22 | 中国重型机械研究院股份公司 | A kind of pair of drift upsetter |
| CN112170760A (en) * | 2020-08-27 | 2021-01-05 | 天津市天锻压力机有限公司 | Vertical rotary extrusion hydraulic press |
| CN114799012A (en) * | 2022-04-29 | 2022-07-29 | 中国重型机械研究院股份公司 | Prestressed pipe end upsetter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736494B (en) * | 2016-04-22 | 2018-10-16 | 无锡双马钻探工具有限公司 | A kind of thickening production line of no-dig technique drilling rod |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212183A (en) * | 1978-12-11 | 1980-07-15 | Combustion Engineering, Inc. | Upsetting of tube ends |
| DE3200361C2 (en) * | 1982-01-06 | 1984-08-30 | Mannesmann AG, 4000 Düsseldorf | Holding device for the pipe end pieces in a hydraulic pipe end press |
| DE3306466C2 (en) * | 1982-02-25 | 1986-07-24 | Kobe Steel, Ltd., Kobe, Hyogo | Upsetting device for upsetting several workpieces at the same time |
| CN2542355Y (en) * | 2002-04-02 | 2003-04-02 | 机械工业部西安重型机械研究所 | Frame-type oil tube thickening machine |
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2006
- 2006-12-26 CN CNB2006101052719A patent/CN100484746C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102258969A (en) * | 2011-05-20 | 2011-11-30 | 贵州航天天马机电科技有限公司 | Ejection mechanical equipment |
| CN103272981A (en) * | 2013-06-17 | 2013-09-04 | 南通普蒙盛机械制造有限公司 | Bidirectional parting continuous forging system of forming die of pipe end upsetting device |
| CN103272981B (en) * | 2013-06-17 | 2015-03-25 | 南通普蒙盛机械制造有限公司 | Bidirectional parting continuous forging system of forming die of pipe end upsetting device |
| CN105436374A (en) * | 2015-12-01 | 2016-03-30 | 中国重型机械研究院股份公司 | Overall thickening equipment for heavy weight drill rod pipe end |
| CN107186141A (en) * | 2017-07-04 | 2017-09-22 | 中国重型机械研究院股份公司 | A kind of pair of drift upsetter |
| CN112170760A (en) * | 2020-08-27 | 2021-01-05 | 天津市天锻压力机有限公司 | Vertical rotary extrusion hydraulic press |
| CN114799012A (en) * | 2022-04-29 | 2022-07-29 | 中国重型机械研究院股份公司 | Prestressed pipe end upsetter |
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| CN100484746C (en) | 2009-05-06 |
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