CN202052874U - Seamless steel pipe hot expanding machine - Google Patents
Seamless steel pipe hot expanding machine Download PDFInfo
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- CN202052874U CN202052874U CN2011200805356U CN201120080535U CN202052874U CN 202052874 U CN202052874 U CN 202052874U CN 2011200805356 U CN2011200805356 U CN 2011200805356U CN 201120080535 U CN201120080535 U CN 201120080535U CN 202052874 U CN202052874 U CN 202052874U
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Abstract
A seamless steel pipe hot expanding machine comprises a rack, a lifting roller way, a background trolley device, a locking-clamping device, an ejector rod, a main transmission oil cylinder and an internal ring device. The rack comprises at least two cross beams; and the lifting roller way comprises at least two groups of lifting roller devices which are arranged along the axis direction of the rack. The background trolley device comprises a background trolley, a background trolley track and a background oil cylinder. The locking-clamping device comprises a group of main locking-clamping device and at least one group of auxiliary locking-clamping device, wherein the main locking-clamping device is arranged at the right end of the rack; and the auxiliary locking-clamping devices are uniformly distributed in the middle of the rack. The ejector rod is arranged at the right side of the rack along the axis of the rack; and the left end of the ejector rod is provided with a hole expanding core shaft. The main transmission oil cylinder and the axis of the ejector rod are coaxially arranged at the right side of the ejector rod. The internal ring device comprises an internal ring support frame and the front end of the internal ring support frame is provided with an internal ring. The seamless steel pipe hot expanding machine has the advantages of being simple in equipment structure, reliable in work, high in working efficiency and yield and easy to realize continuous automatic production.
Description
Technical field
The utility model relates to a kind of seamless steel pipe hot tube expanding machine, in being particularly useful for, the production field of thin-wall seamless steel pipe.
Background technology
Seamless steel pipe pipe expander commonly used at present has three kinds: " heating in medium frequency pipe expander, " oblique milling hot tube expanding machine " and " crimping adds hot tube expanding machine " etc.
" heating in medium frequency pipe expander " is to utilize the mode of heating in medium frequency that steel pipe is carried out local heating, promoting steel pipe then travels forward, a kind of hole enlargement equipment that deformable metal enlarges outer diameter of steel pipes by the expanding die of a taper under the effect of compression, the characteristics of this equipment are that organization of production is flexible, but efficient is low, and the cycle is long, the production cost height, end properties is poor, thereby this technology can only be used in some field.
" oblique milling hot tube expanding machine " to be the mode of utilizing oblique milling be rolled a kind of equipment of hole enlargement to steel pipe, because the structure more complicated of this equipment, investment is big, produces difficult in maintenance, non-cutting time is long, equipment cost is high, so fully popularization do not open.
" crimping adds hot-expanding pipe equipment " is when cold conditions the seamless steel pipe two ends as raw material to be trimmed, mode by the head heating, utilize crimping equipment that the steel pipe head is carried out flange, and then carrying out the total length heating with the steel pipe of heating furnace after to flange, the steel pipe after the total length heating utilizes crimping to add hot-expanding pipe equipment steel pipe is carried out hole enlargement again.Because this equipment can only carry out hole enlargement to the steel pipe behind the crimping, so steel pipe will add hot crimping at following steel pipe crop of cold conditions, so lumber recovery is lower, and steel pipe is wanted post bake, the iron scale that forms when hole enlargement the inner surface scratch wound of steel pipe, product second-rate.
The utility model content
The purpose of this utility model is to provide a kind of seamless steel pipe hot tube expanding machine, to realize continuous automatic production, significantly improves product quality and production efficiency.
In order to solve the problems of the technologies described above, the utility model provides a kind of seamless steel pipe hot tube expanding machine, and it comprises frame, rise and fall roller, backstage carriage device, locking clamping device, push rod 5, main transmission oil cylinder 6, internal ring device 7.
Its mid frame comprises at least two crossbeams 12, and each crossbeam 12 is parallel to frame axis and is that the center symmetry is uniform with the frame axis.Described rise and fall roller comprises at least two group dance roller devices 2, and each dance roller device 2 is arranged in the frame axis below along the frame axis direction, and each dance roller device 2 comprises dance roller 21 and hoist cylinder 24.Described backstage carriage device comprises backstage dolly 32, backstage trolley track 33 and backstage oil cylinder 31, described backstage trolley track 33 is parallel to the frame axis setting, backstage dolly 32 is slidingly mounted on the backstage trolley track 33, and backstage oil cylinder 31 is installed between frame left end and the backstage dolly 32.Described locking clamping device comprises that one group of master locks clamping device 41 and at least one group of auxilliary locking clamping device 42, wherein main locking clamping device 41 is installed in the right-hand member of frame, this master's locking clamping device 41 comprises at least two claws 43, each claw 43 is installed on the housiung separator 12 by guider 44 and clamping cylinder 46, each auxilliary locking clamping device 42 is distributed on central rack, and its structure is identical with above-mentioned main locking clamping device 41.Described push rod 5 is installed in the frame right side along frame axis, and the left end of push rod 5 is equipped with reaming mandrel 53.Described main transmission oil cylinder 6 is connected the right-hand member of push rod 5, is used for driving vertically push rod 5, main transmission oil cylinder 6 and push rod 5 coaxial push rod 5 right sides that are installed in.The interior ring oil cylinder 73 of ring support 72 in ring bracing frame 72 and the driving in described internal ring device 7 comprises, ring 71 in the front end of interior ring bracing frame 72 is provided with.
Further, described main transmission oil cylinder 6 utilizes master cylinder bearing 61 fixed installation, utilizes two pull bars 62 to be connected between master cylinder bearing 61 and the frame.
Described a kind of seamless steel pipe hot tube expanding machine, can further include ejector rob trolley provided device 9, described ejector rob trolley provided device 9 comprise by several cut deals be welded ejector rob trolley provided 92, this middle part of ejector rob trolley provided 92 is provided with the circular hole that cooperates with push rod 5, respectively be provided with two rollers 91 in ejector rob trolley provided 92 both sides, roller 91 is installed on ejector rob trolley provided 92 by axle and bearing, above-mentioned totally four rollers 91 are fixed against the medial surface of two pull bars 62 respectively, the external diameter groove surface of roller 91 is semicircle face structures, diameter is similar to the diameter of pull bar 62, simultaneously, below ejector rob trolley provided 92, be provided with ejector rob trolley provided track 93, correspondingly be provided with roller 94 in ejector rob trolley provided 92 bottoms along main transmission oil cylinder 6 axis directions.
Further, near main locking clamping device 41, be provided with one group of push rod centralising device 8, this push rod centralising device 8 comprises two centring rolls 81, these two centring rolls are separately fixed on left balladeur train 82 and the right balladeur train 83, described left balladeur train 82 and right balladeur train 83 are installed on the optical axis 84, and left balladeur train 82 is provided with left tooth bar, and right balladeur train 83 is provided with right tooth bar, equal and the gears engaged of left side tooth bar and right tooth bar, described gear is driven by the driven by motor reducer of turbodrill.
Further can also comprise chain drive in the described dance roller device 2, this chain drive comprises upper sprocket wheel 27a, lower sprocket 27b, chain 28 and reducing motor 26, wherein reducing motor 26 is fixedly installed on the above-mentioned crane 22, upper sprocket wheel 27a is installed in an end of the axle 29 of dance roller 21, lower sprocket 27b is installed on the output shaft of reducing motor 26, utilizes chain 28 to be connected between upper sprocket wheel 27a and the lower sprocket 27b.Utilize this chain drive, can control dance roller 21 and rotate, seesaw vertically, be convenient to more steel pipe is operated thereby drive steel pipe.
This seamless steel pipe hot tube expanding machine course of work is: the shell 52 that will treat reaming places in the frame, on the dance roller device 2; Adjusting rise and fall roller up and down makes the axis of shell 52 overlap with frame axis; Start backstage oil cylinder 31, drive backstage dolly 32 and move right, promote shell 52 and move right to main locking clamping device 41 places along backstage trolley track 33; Start each auxilliary locking clamping device 42 and clamp shell 52; Start main transmission oil cylinder 6, by push rod 5 reaming mandrel 53 is pushed shell 52 right-hand members, make the right-hand member of shell 52 be able to hole enlargement, simultaneously, the interior ring 71 of the interior ring of internal ring device 7 drivings bracing frame 72 front ends is followed reaming mandrel 53 and is entered in the shell 52, until interior ring 71 being sent to main locking clamping device 41 places; Starting main locking clamping device 41 together locks shell 52 and interior ring 71; Subsequently, main transmission oil cylinder 6 continues to promote reaming mandrel 53 by push rod 5 and passes shell 52 from right to left, in this process, in the time of near reaming mandrel 53 moves to a certain group of auxilliary locking clamping device 42, in time open the auxilliary locking of this group clamping device 42, after reaming mandrel 53 passes the auxilliary locking of this group clamping device 42, in time lock the auxilliary locking of this group clamping device 42, pass whole shell 52 until reaming mandrel 53, make shell 52 be able to hole enlargement.
The advantage of seamless steel pipe hot tube expanding machine described in the utility model is: device structure is simple, reliable operation, and the production efficiency height, the lumber recovery height, and be easy to realize continuous automatic production.
Below in conjunction with drawings and Examples the utility model is further described.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the structural representation of dance roller device;
Fig. 4 is the structure chart of ejector rob trolley provided device;
Fig. 5 is the structure chart of push rod centralising device;
Fig. 6 is the internal ring device structure chart.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the utility model and being implemented, but illustrated embodiment is not as to qualification of the present utility model.
Embodiment one
The described seamless steel pipe hot tube expanding machine of present embodiment comprises frame, rise and fall roller, backstage carriage device, locking clamping device, push rod 5, main transmission oil cylinder 6, internal ring device 7.Referring to Fig. 1.
Its mid frame comprises left end beam 11, right-hand member beam 13 and four crossbeams 12 that are connected to one, and each crossbeam 12 is parallel to frame axis and uniform with respect to the frame axis symmetry.
Rise and fall roller in the present embodiment is made up of four groups of dance roller devices 2, referring to Fig. 1,2,3, each dance roller device is arranged in the frame axis below along the frame axis direction, each dance roller device includes dance roller 21, crane 22, holder 23 and hoist cylinder 24, wherein dance roller 21 is installed on the crane 22 by an axle 29 and two bearings, the below of crane 22 is provided with holder 23, is provided with hoist cylinder 24 between holder 23 and the crane 22.The described dance roller device 2 of present embodiment, between crane 22 and holder 23, be provided with one group of blade fin 25, be to allow dance roller 21 held stationary in the process of moving up and down like this, and can drop to the frictional force between crane 22 and the holder 23 minimum.
Also comprise chain drive in the described dance roller device 2 of present embodiment, referring to Fig. 3, this chain drive comprises upper sprocket wheel 27a, lower sprocket 27b, chain 28 and reducing motor 26, wherein reducing motor 26 is fixedly installed on the above-mentioned crane 22, upper sprocket wheel 27a is installed in an end of the axle 29 of dance roller 21, lower sprocket 27b is installed on the output shaft of reducing motor 26, utilizes chain 28 to be connected between upper sprocket wheel 27a and the lower sprocket 27b.Utilize this chain drive, can control dance roller 21 and rotate, seesaw vertically, be convenient to more steel pipe is operated thereby drive steel pipe.
For realizing quick continued operation, be provided with cold bed 51 in the present embodiment, this cold bed 51 has a upper support face that tilts, and this supporting surface treats that by the below in the reaming zone of frame inside the shell 52 of reaming can be automatically scrolling to the rise and fall roller top along this supporting surface.
Simultaneously, be provided with stop gauge on cold bed 51, this stop gauge can connect a striker plate by a cylinder, and one of striker plate is fixed on the bearing seat, and the other end is fixed on the piston rod of cylinder.When cylinders retract, striker plate is routed up the cold bed face, the shell that rolls along cold bed to the described seamless steel pipe hot tube expanding machine of present embodiment can be kept off in the expander zone, so that carry out ream operation.After reaming finished, the cylinder emersion was ploughed under striker plate below the cold bed 51, allowed steel pipe roll out the expander zone voluntarily and enter in the finished product roller road along cold bed.
Referring to Fig. 1, described backstage carriage device comprises backstage dolly 32, backstage trolley track 33 and backstage oil cylinder 31, the trolley track of backstage described in the present embodiment 33 is arranged on the frame axis top and be arranged in parallel with frame axis, backstage dolly 32 is lifted on the below of backstage trolley track 33, and backstage oil cylinder 31 is installed between frame left end beam 11 and the backstage dolly 32.Backstage dolly 32 is used for axially promoting steel pipe 52 and the part roll-force of bearing when just beginning hole enlargement in the expander process.
Locking clamping device described in the present embodiment comprises that one group of master locks clamping device 41 and three groups of auxilliary locking clamping devices 42, wherein main locking clamping device 41 is installed near the right-hand member beam 13 of frame, referring to 1,2, this master's locking clamping device 41 comprises four groups of locking devices, each locking device includes claw 43, claw guide plate 44, pressing plate 45 and clamping cylinder 46, each claw 43 is installed on the housiung separator 12 by guider 44 and clamping cylinder 46, described claw guide plate 44 is fixedly connected on the housiung separator 12, the axis and the frame axis of claw guide plate 44 intersect vertically, pressing plate 45 utilizes set bolt 47 and housiung separator 12 to form a fixed connection, clamping cylinder 46 is located between base plate 45 and the claw 43, and is coaxially installed on claw guide plate 44 inside.
Described three groups of auxilliary locking clamping devices 42 are distributed in the middle part of frame, and the structure of every group of auxilliary locking clamping device 42 is identical with above-mentioned main locking clamping device 41.
Referring to Fig. 1, push rod 5 is installed in the frame right side along frame axis, and the right-hand member of push rod 5 is connected with main transmission oil cylinder 6, and left end is equipped with reaming mandrel 53.Because the present embodiment unit is to adopt the foreground master cylinder to wear the formula expander, shell 52 is to be in expander under the condition of high temperature, so reaming mandrel 53 is fixed on the long push rod 5 of a root, can avoid to the full extent in the expander process, the piston rod of main transmission oil cylinder 6 contacts with hot steel pipe 52, promptly avoid main transmission oil cylinder 6 under high-temperature area, to work to the full extent, improved the service life of main transmission oil cylinder 6 greatly.
Referring to Fig. 1, main transmission oil cylinder 6 and push rod 5 be coaxial to be connected and to be used to drive push rod 5 and to do axially-movable, main transmission oil cylinder 6 and push rod 5 coaxial push rod 5 right sides that are installed in, in the present embodiment, utilize two pull bars 62 to be connected between the master cylinder bearing 61 that is used for fixing main transmission oil cylinder 6 and the frame, the part roll-force that expander produced can be reprinted on the frame, avoided excessive because of roll-force, master cylinder bearing 61 can not bear huge roll-force fully and allow main transmission oil cylinder 6 produce slight moving, and guarantees that reaming mandrel 53 remains on the roll line.
Because push rod 5 length are longer, when the distance of the piston rod of main transmission oil cylinder 6 emersion is long, be fixed on push rod 5 on the piston rod and have self downward gravity, and main transmission oil cylinder 6 piston rods of this moment can't bear this gravity, so added one group of ejector rob trolley provided device 9 in the present embodiment.
Referring to Fig. 1,4, this ejector rob trolley provided device 9 comprise by several cut deals be welded ejector rob trolley provided 92, this middle part of ejector rob trolley provided 92 is provided with the circular hole that cooperates with push rod 5, respectively is provided with two rollers 91 in these ejector rob trolley provided 92 both sides, and roller 91 is installed on ejector rob trolley provided 92 by axle and bearing.Above-mentioned totally four rollers 91 are fixed against the medial surface of two pull bars 62 respectively, and the external diameter groove surface of roller 91 is semicircle face structures, and diameter is similar to the diameter of pull bar 62.Simultaneously, below ejector rob trolley provided 92, be provided with ejector rob trolley provided track 93, correspondingly be provided with roller 94 in ejector rob trolley provided 92 bottoms along main transmission oil cylinder 6 axis directions.
The piston rod of main transmission oil cylinder 6 and the gravity of push rod 5 tail down can be reproduced on pull bar 62 and the ejector rob trolley provided track 93 like this, main transmission oil cylinder 6 promotes ejector rob trolley provided 92 in the expander process, ejector rob trolley provided 92 just can be under the restriction of two pull bars 62 and ejector rob trolley provided track 93, accurately along the axis back and forth movement of main transmission oil cylinder 6, same push rod 5 also moves back and forth thereupon.
Because push rod 5 is long, only its left end is supported on ejector rob trolley provided 92, the push rod right-hand member self has certain downward gravity, and push rod 5 heads do not have and are subjected to a support force that makes progress, and can't make reaming mandrel 53 in the expander process, remain on the roll line.Therefore in the present embodiment, adding one group of push rod centralising device 8 from main locking clamping device 41 not far places, referring to Fig. 1,5, it comprises two centring rolls 81, these two centring rolls are separately fixed on left balladeur train 82 and the right balladeur train 83, described left balladeur train 82 and right balladeur train 83 are installed on the optical axis 84, left side balladeur train 82 is provided with left tooth bar, right balladeur train 83 is provided with right tooth bar, equal and the gears engaged of left side tooth bar and right tooth bar, described gear is driven by the driven by motor reducer of turbodrill, utilize this device very accurate reaming mandrel 53 to be transferred on the roll line, guarantee the internal diameter of steel pipe behind the expander, also reduced ejector rob trolley provided 92 and be subjected to the downward gravity of push rod 5 parts, guaranteed the security of equipment.
With reference to accompanying drawing 6, ring bracing frame 72 in ring feeder 7 comprises in described, should in ring bracing frame 72 be provided with two sliding sleeves and be respectively applied for two pull bars 62 and cooperate, the front end of interior ring bracing frame 72 in a tubular form, its internal diameter can pass for push rod 5, ring 71 in the front end of interior ring bracing frame 72 is provided with, the both sides of interior ring bracing frame 72 are respectively equipped with ring oil cylinder 73 in, and the axis of each interior ring oil cylinder 73 is all parallel with push rod 5 axis.
Interior ring bracing frame 72 utilizes pull bar 62 and push rod 5 to lead, steel pipe 52 inside be sent the interior ring 71 of interior ring bracing frame 72 front ends into or be pulled out to the reduction of ring oil cylinder 73 can simultaneously, guaranteed that interior ring 71 can send into steel duct accurately, thereby allowed steel pipe can firmly be held tightly locked by main locking clamping device 41.
When shell 52 is sent its right-hand member into main locking clamping device 41 by backstage dolly 32, three groups of auxilliary locking clamping devices 42 clamp steel pipe 52 simultaneously, push rod 5 promotes reaming mandrel 53 and penetrates steel pipe 52 inside rapidly, three groups of auxilliary locking clamping devices 42 clamp steel pipe simultaneously, the external diameter of steel pipe is not produced clamp under the situation of distortion, for the steel pipe 52 of different size, different materials, can take the size of adjustable clamp locking oil cylinder 46 pressure.At the expander initial stage, when reaming mandrel 53 had just penetrated steel pipe 52 inside, three groups of auxilliary locking clamping devices 42 in back and backstage carriage device had carried the roll-force that produces in the expander process.When reaming mandrel 53 passes main locking clamping device 41, and internal ring device 7 with interior ring 71 send into put in place after, main locking clamping device 41 clamps steel pipe 52 and interior ring, because interior ring can be played a supporting role, main locking clamping device 41 can apply very large clamping force to steel pipe 52, and can not make pipe deformation.After this, every group of auxilliary locking clamping device 42 can separate separately according to the position of reaming mandrel 53 or clamp, in the time of near reaming mandrel 53 moves to a certain group of auxilliary locking clamping device 42, in time open the auxilliary locking of this group clamping device 42, after reaming mandrel 53 passes the auxilliary locking of this group clamping device 42, the auxilliary locking of this group of locking in time clamping device 42 passes whole shell 52 until reaming mandrel 53, makes shell 52 be able to hole enlargement.Because 41 pairs of steel pipe right-hand members of main locking clamping device have applied enough big clamping force, the auxilliary locking clamping device 42 of each group only need play in later stage expander process sets upright steel pipe 52 in rolling center with to the effect of steel pipe 52 external diameters control, can not make steel pipe 52 distortion.
Embodiment two
Before the described seamless steel pipe hot tube expanding machine of this utility model also is used in steel pipe 52 cold-drawns, after the heating in medium frequency depressing of steel pipe 52 heads operated, be that steel pipe 52 rolls into this hot-expanding pipe unit when zone after perforation, guarantee the position of steel pipe 52 by backstage dolly 32 and auxilliary locking clamping device 42, at push rod 5 left ends the pressure head grinding tool is installed, the compacting that this pressure head grinding tool carries out the steel pipe head under the huge thrust of push rod 5 can make steel pipe 52 heads diminish.
Embodiment three
Automated system for the continuity that guarantees to produce and this unit, on backstage dolly 32, added one group of reaming mandrel clamping device, after convenient expander end, push rod 5 is when returning, by this reaming mandrel clamping device reaming mandrel 53 is clamped,, treated that steel pipe 52 has to roll out the expander zone smoothly so that push rod 5 can be return original position under the non-resistance situation, push rod 5 emersions, but motorized cart reaming mandrel 53.
The above embodiment is the preferred embodiment that proves absolutely that the utility model is lifted, and protection domain of the present utility model is not limited thereto.Being equal to that those skilled in the art are done on the utility model basis substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (5)
1. seamless steel pipe hot tube expanding machine is characterized in that: it comprises frame, rise and fall roller, backstage carriage device, locking clamping device, push rod (5), main transmission oil cylinder (6), internal ring device (7), wherein:
Described frame comprises at least two crossbeams (12), and each crossbeam (12) is parallel to frame axis and is that the center symmetry is uniform with the frame axis;
Described rise and fall roller comprises at least two group dance roller devices (2), and each dance roller device (2) is arranged in the frame axis below along the frame axis direction, and each dance roller device (2) comprises dance roller (21) and hoist cylinder (24);
Described backstage carriage device comprises backstage dolly (32), backstage trolley track (33) and backstage oil cylinder (31), described backstage trolley track (33) is parallel to the frame axis setting, backstage dolly (32) is slidingly mounted on the backstage trolley track (33), and backstage oil cylinder (31) is installed between frame left end and the backstage dolly (32);
Described locking clamping device comprises that one group of master locks clamping device (41) and at least one group of auxilliary locking clamping device (42), wherein main locking clamping device (41) is installed in the right-hand member of frame, this master's locking clamping device (41) comprises at least two claws (43), each claw (43) is installed on the housiung separator (12) by guider (44) and clamping cylinder (46), each auxilliary locking clamping device (42) is distributed on central rack, and its structure is identical with above-mentioned main locking clamping device (41);
Described push rod (5) is installed in the frame right side along frame axis, and the left end of push rod (5) is equipped with reaming mandrel (53);
Described main transmission oil cylinder (6) and coaxial push rod (5) right side that is installed in of push rod (5);
The interior ring oil cylinder (73) of ring support (72) in ring bracing frame (72) and the driving in described internal ring device (7) comprises, the front end of interior ring bracing frame (72) is provided with interior ring (71).
2. a kind of seamless steel pipe hot tube expanding machine as claimed in claim 1 is characterized in that: described main transmission oil cylinder (6) utilizes master cylinder bearing (61) fixed installation, utilizes two pull bars (62) to be connected between master cylinder bearing (61) and the frame.
3. a kind of seamless steel pipe hot tube expanding machine as claimed in claim 1, it is characterized in that: it also includes ejector rob trolley provided device (9), described ejector rob trolley provided device (9) comprises ejector rob trolley provided (92) that are welded by several cut deals, the middle part of these ejector rob trolley provided (92) is provided with the circular hole that cooperates with push rod (5), respectively be provided with two rollers (91) in ejector rob trolley provided (92) both sides, roller (91) is installed on ejector rob trolley provided (92) by axle and bearing, above-mentioned totally four rollers (91) are fixed against the medial surface of two pull bars (62) respectively, the external diameter groove surface of roller (91) is a semicircle face structure, diameter is similar to the diameter of pull bar (62), simultaneously, be provided with ejector rob trolley provided track (93) in ejector rob trolley provided (92) below along main transmission oil cylinder (6) axis direction, correspondingly be provided with roller (94) in ejector rob trolley provided (92) bottom.
4. a kind of seamless steel pipe hot tube expanding machine as claimed in claim 1, it is characterized in that: near main locking clamping device (41), be provided with one group of push rod centralising device (8), this push rod centralising device (8) comprises two centring rolls (81), these two centring rolls are separately fixed on left balladeur train (82) and the right balladeur train (83), described left balladeur train (82) and right balladeur train (83) are installed on the optical axis (84), left side balladeur train (82) is provided with left tooth bar, right balladeur train (83) is provided with right tooth bar, equal and the gears engaged of left side tooth bar and right tooth bar, described gear is driven by the driven by motor reducer of turbodrill.
5. a kind of seamless steel pipe hot tube expanding machine as claimed in claim 1, it is characterized in that: also comprise chain drive in the described dance roller device (2), this chain drive comprises upper sprocket wheel (27a), lower sprocket (27b), chain (28) and reducing motor (26), wherein reducing motor (26) is fixedly installed on the above-mentioned crane (22), upper sprocket wheel (27a) is installed in an end of the axle (29) of dance roller (21), lower sprocket (27b) is installed on the output shaft of reducing motor (26), utilizes chain (28) to be connected between upper sprocket wheel (27a) and the lower sprocket (27b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200805356U CN202052874U (en) | 2011-03-24 | 2011-03-24 | Seamless steel pipe hot expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200805356U CN202052874U (en) | 2011-03-24 | 2011-03-24 | Seamless steel pipe hot expanding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202052874U true CN202052874U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200805356U Expired - Lifetime CN202052874U (en) | 2011-03-24 | 2011-03-24 | Seamless steel pipe hot expanding machine |
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| CN (1) | CN202052874U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179450A (en) * | 2011-03-24 | 2011-09-14 | 扬州诚德钢管有限公司 | Hot expanding process for seamless steel tube, and hot tube expanding machine |
| CN104096772A (en) * | 2014-08-08 | 2014-10-15 | 中江机电科技江苏有限公司 | Oil cylinder type portable pipe expander |
| CN104368708A (en) * | 2014-07-31 | 2015-02-25 | 上海通华不锈钢压力容器工程有限公司 | Pipe expander with straight expansion cores |
| 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 |
| CN104923679A (en) * | 2015-07-07 | 2015-09-23 | 芜湖安福川工业成套设备有限公司 | Rack structure of tube expansion machine |
| CN107497855A (en) * | 2017-09-20 | 2017-12-22 | 张家港市圣鼎源制管有限公司 | A kind of steel tube punching machine |
-
2011
- 2011-03-24 CN CN2011200805356U patent/CN202052874U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179450A (en) * | 2011-03-24 | 2011-09-14 | 扬州诚德钢管有限公司 | Hot expanding process for seamless steel tube, and hot tube expanding machine |
| CN102179450B (en) * | 2011-03-24 | 2013-01-02 | 扬州诚德钢管有限公司 | Hot expanding process for seamless steel tube, and hot tube expanding machine |
| CN104368708A (en) * | 2014-07-31 | 2015-02-25 | 上海通华不锈钢压力容器工程有限公司 | Pipe expander with straight expansion cores |
| CN104096772A (en) * | 2014-08-08 | 2014-10-15 | 中江机电科技江苏有限公司 | Oil cylinder type portable pipe expander |
| CN104096772B (en) * | 2014-08-08 | 2015-12-09 | 中江机电科技江苏有限公司 | The portable tube expander of cylinder type |
| 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 |
| CN104923679A (en) * | 2015-07-07 | 2015-09-23 | 芜湖安福川工业成套设备有限公司 | Rack structure of tube expansion machine |
| CN107497855A (en) * | 2017-09-20 | 2017-12-22 | 张家港市圣鼎源制管有限公司 | A kind of steel tube punching machine |
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Granted publication date: 20111130 |