CN217191637U

CN217191637U - High-strength seamless steel pipe cold rolling device

Info

Publication number: CN217191637U
Application number: CN202220412133.XU
Authority: CN
Inventors: 冯武; 朱国强
Original assignee: Zhejiang Benji Stainless Steel Co ltd
Current assignee: Zhejiang Benji Stainless Steel Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-08-16
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a seamless steel pipe cold rolling device excels in relates to steel pipe rolling equipment technical field. The guide rail hole has been seted up to the symmetry on the casing including the casing, the casing openly symmetry is fixed with first mount, and the casing back symmetry is fixed with the second mount, fixedly connected with slide bar between first mount and the second mount, and the inside sliding connection of casing has the clamping structure, sets up the logical chamber that runs through the casing on the casing, leads to chamber and clamping structure phase-match, and the through-hole with slide bar looks adaptation is seted up to the last symmetry of clamping structure, and fixed connection has the pneumatic cylinder that the level set up on a second mount. The utility model discloses the clamping structure who sets up possesses two and snatchs the structure, and its centre gripping steel pipe that can be comparatively firm, the steel pipe is difficult for droing, and more stable when rolling is difficult for rocking, and can carry out the reciprocal roll forming of making a round trip of small range to some pipeline sections, and the suitability obtains great promotion for the machining precision of steel pipe obtains promoting.

Description

High-strength seamless steel pipe cold rolling device

Technical Field

The utility model relates to a steel pipe rolling equipment technical field specifically is a high-strength seamless steel pipe cold rolling device.

Background

The cold-rolled steel pipe is a pipe making method by using a steel pipe produced by a hot rolling or hot extrusion method as a blank to carry out cold rolling and cold drawing, has the advantages of high precision, good strength, good surface smoothness, wide size range and the like, and can save the machining working hours and improve the material utilization rate. The conventional cold rolling method mainly comprises four types of rolling of a long core rod, short top rolling, idle rolling and expanding rolling, wherein the expanding rolling mainly works as follows: the steel pipe to be rolled is fixed on a cold rolling mill in a transverse mode, a core bar moving device is arranged at one end of the steel pipe, a core bar penetrates through the steel pipe under the pushing of the core bar moving device, one end, penetrating through the steel pipe, of the core bar is connected with a rolling trolley, the core bar moving device loosens the core bar and clamps a rolling inner die at one end, far away from the rolling trolley, of the core bar, the diameter of the rolling inner die is larger than the inner diameter of the steel pipe, the rolling trolley pulls the core bar to move towards the direction far away from the steel pipe, and the rolling inner die extrudes the inner wall of the steel pipe so as to achieve the purpose of expanding the diameter of the steel pipe.

Steel pipe cold rolling mill dolly structure among the prior art is comparatively simple, generally is the automobile body of angle bar hank system, and the automobile body upper end is equipped with the skewer roller, plays the effect of carrying, supporting at steel pipe car system in-process, and the firmness of the centre gripping steel pipe of this kind of dolly is relatively poor, and just can the shaping to certain pipeline section needs reciprocal rolling round trip, and this kind of ordinary dolly can't satisfy the reciprocal rolling that carries out the small range, for this reason the utility model provides a novel solution.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-strength seamless steel pipe cold rolling device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high-strength seamless steel pipe cold rolling device, which comprises a housin, the guide rail hole has been seted up to the symmetry on the casing, the positive symmetry of casing is fixed with first mount, the casing back symmetry is fixed with the second mount, fixedly connected with slip stick between first mount and the second mount, the inside sliding connection of casing has the clamping structure, set up the logical chamber that runs through the casing on the casing, lead to chamber and clamping structure phase-match, the last symmetry of clamping structure set up with the through-hole of slip stick looks adaptation, the pneumatic cylinder that fixedly connected with level set up on a second mount, the pneumatic cylinder output is fixed on clamping structure, the casing top is equipped with the controller, pneumatic cylinder and clamping structure all with controller electric connection.

As preferred technical scheme in this application, the clamping structure includes that two symmetries set up snatchs the structure, snatchs structural equal symmetry and is fixed with the position fixing board, through dead lever looks fixed connection between the position fixing board, and the through-hole is seted up on the position fixing board, rotates between two position fixing boards of one side to be connected with and snatch the initiative fluted roller of structure looks adaptation, is equipped with the motor on a position fixing board, and the motor output is fixed on initiative fluted roller, motor and controller electric connection.

As preferred technical scheme in this application, snatch the structure and include the chassis, the chassis is fixed between two position fixing plates, chassis top circumference permutation is fixed with a plurality of stoppers, be formed with the sliding tray between the stopper, the sliding tray all slides and is provided with the sliding block, the inboard equal fixedly connected with position fixing ring of sliding block, the equal welding of sliding block top one end has spacing stick, it is connected with the driven gear with initiative fluted roller engaged with to snatch the rotation of structure top, the last equidistance of driven gear sets up a plurality of bar grooves with spacing stick looks adaptation, the axis of driven gear and chassis is on same straight line.

As the preferred technical scheme in this application, first mount and second mount all include the bottom plate, offer the round hole the same with guide rail hole diameter on the bottom plate, and fix mutually through the bolt between bottom plate and the casing, and integrated into one piece has the L board on the bottom plate, and the slip stick is fixed on the L board.

As the preferable technical scheme in the application, the top of the shell is provided with a lifting ring seat, and the lifting ring seat is provided with a lifting hole.

As preferred technical scheme in this application, the strip groove is along clockwise equidistance permutation distribution, and spacing stick top welding has the spacing head, and the diameter of spacing head is greater than the width in strip groove.

Compared with the prior art, the beneficial effects of the utility model are that:

this seamless steel pipe cold rolling device excels in, the clamping structure who sets up possesses two and snatchs the structure, and its centre gripping steel pipe that can be comparatively firm, the steel pipe is difficult for droing, and more stable when rolling is difficult for rocking, and through mutually supporting of pneumatic cylinder and slip stick isotructure, can carry out the reciprocal rolling shaping of making a round trip of small range to some pipeline sections, and the suitability obtains great promotion for the machining precision of steel pipe obtains promoting, and simple structure, convenient to use.

Drawings

Fig. 1 is a schematic view of a first three-dimensional structure of the present invention;

fig. 2 is a schematic view of a second three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a schematic perspective view of the grasping structure of the present invention;

fig. 5 is the utility model discloses a three-dimensional structure schematic diagram after driven gear is got rid of to the structure of snatching.

In the figure: 1. a housing; 101. a suspension ring seat; 102. a guide rail hole; 2. a controller; 3. a first fixing frame; 4. a second fixing frame; 5. a slide bar; 6. a hydraulic cylinder; 7. a clamping structure; 701. a chassis; 702. a limiting block; 703. a slider; 704. a limiting rod; 705. a retention ring; 706. a driven gear; 707. a strip-shaped groove; 708. a position-retaining plate; 709. a driving toothed roller; 710. a motor; 711. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1-5, the utility model provides a technical solution: the utility model provides a seamless steel pipe cold rolling device excels in, which comprises a

housin

1, 1 top of casing is equipped with shackle seat 101, the lewis hole has been seted up on shackle seat 101, guide rail hole 102 has been seted up to the symmetry on the

casing

1, 1 positive symmetry of casing is fixed with

first mount

3, 1 back symmetry of casing is fixed with second mount 4, fixedly connected with slip stick 5 between first mount 3 and the

second mount

4, 1 inside sliding connection of casing has clamping structure 7, set up the logical chamber that runs through casing 1 on the casing 1, lead to chamber and clamping structure 7 phase-match, the through-hole with 5 looks adaptations of slip stick is seted up to the symmetry on the clamping structure 7, the pneumatic cylinder 6 that fixedly connected with level set up on a second mount 4, the 6 output of pneumatic cylinder is fixed on

clamping structure

7, 1 top of casing is equipped with controller 2, pneumatic cylinder 6 and clamping structure 7 all with controller 2 electric connection. The opening and closing of the motor 710 and the hydraulic cylinder 6 can be controlled through the controller 2, the flexibility is stronger, and the use is more convenient.

As a specific embodiment, the clamping structure 7 includes two symmetrically arranged grabbing structures, the grabbing structures are symmetrically fixed with the position fixing plates 708, the position fixing plates 708 are fixedly connected with each other through the fixing rod 711, the through holes are formed in the position fixing plates 708, the two position fixing plates 708 on one side are rotatably connected with the driving toothed rollers 709 matched with the grabbing structures, one position fixing plate 708 is provided with the motor 710, the output end of the motor 710 is fixed on the driving toothed rollers 709, and the motor 710 is electrically connected with the controller 2.

As a specific embodiment, the grabbing structure comprises a chassis 701, the chassis 701 is fixed between two position fixing plates 708, a plurality of position limiting blocks 702 are fixed on the top circumference of the chassis 701 in an aligned mode, sliding grooves are formed between the position limiting blocks 702, sliding blocks 703 are arranged in the sliding grooves in a sliding mode, position fixing rings 705 are fixedly connected to the inner sides of the sliding blocks 703, position limiting rods 704 are welded to one ends of the top of the sliding blocks 703, a driven gear 706 meshed with a driving toothed roller 709 is rotatably connected to the top of the grabbing structure, a plurality of strip-shaped grooves 707 matched with the position limiting rods 704 are formed in the driven gear 706 at equal intervals, and the axes of the driven gear 706 and the chassis 701 are on the same straight line.

It should be noted that, when the steel pipe needs to be clamped and stabilized after being in place, the grabbing motor 710 is first turned on by the controller 2, the grabbing motor 710 drives the driving toothed roller 709 to rotate, the driving toothed roller 709 is meshed with the driven gear 706 on the grabbing structure, so that the driven gears 706 on the two grabbing structures can be driven to rotate simultaneously, further, the limiting rods 704 are limited by the strip-shaped grooves 707 and rotate along with the driven gear 706, so that the limiting rods 704 can rotate simultaneously, the sliding blocks 703 can slide between the limiting blocks 702, and thus the limiting blocks 702 can move inwards simultaneously along with the rotation of the limiting rods 704, so as to drive the retaining rings 705 fixed on the limiting blocks 702 to move inwards simultaneously, and then the plurality of retaining rings 705 form a circular ring matched with the steel pipe, so as to clamp the steel pipe.

As a specific embodiment, the first fixing frame 3 and the second fixing frame 4 both include a bottom plate, a circular hole having the same diameter as the guide rail hole 102 is formed in the bottom plate, the bottom plate and the housing 1 are fixed to each other by a bolt, an L-shaped plate is integrally formed on the bottom plate, and the sliding rod 5 is fixed to the L-shaped plate. It should be noted that the round holes can ensure that the first fixing frame 3 and the second fixing frame 4 do not obstruct the installation of the guide rail, and the bottom plate and the casing 1 are fixed by bolts, so that the first fixing frame 3 and the second fixing frame 4 can be conveniently installed and detached at any time, and the maintenance is convenient.

As a specific embodiment, the strip-shaped grooves 707 are distributed in a clockwise equidistant array, a limiting head is welded on the top of the limiting rod 704, and the diameter of the limiting head is larger than the width of the strip-shaped grooves 707.

Specially, when the steel pipe needs to be rolled to and fro in a small range, hydraulic cylinder 6 can be opened through controller 2, hydraulic cylinder 6 extends and shortens back and forth according to preset programs, because position fixing plate 708 and slide bar 5 sliding connection, and slide bar 5 is fixed between first mount 3 and second mount 4, still fixedly connected with dead lever 711 between first mount 3 and the second mount 4 simultaneously, like this can promote the reciprocal removal of clamping structure 7 along with the extension of hydraulic cylinder 6 with shortening, thereby drive steel pipe reciprocating motion, can carry out the rolling shaping of making a round trip to and fro of small range to some pipeline sections like this, the suitability obtains great promotion, make the machining precision of steel pipe obtain promoting, and simple structure, high durability and convenient use. It should be noted that, the clamping structure 7 has two grabbing structures, and compared with the conventional clamping device, the clamping device can clamp the steel pipe more firmly, so that the steel pipe is not easy to fall off, and is more stable and not easy to shake during rolling.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-strength seamless steel pipe cold rolling device, includes casing (1), and guide rail hole (102), its characterized in that have been seted up to the symmetry on casing (1): casing (1) openly symmetry is fixed with first mount (3), casing (1) back symmetry is fixed with second mount (4), fixedly connected with slide bar (5) between first mount (3) and second mount (4), casing (1) inside sliding connection has clamping structure (7), set up the logical chamber that runs through casing (1) on casing (1), lead to chamber and clamping structure (7) phase-match, the through-hole with slide bar (5) looks adaptation is seted up to the symmetry on clamping structure (7), hydraulic cylinder (6) that fixedly connected with level set up on one second mount (4), pneumatic cylinder (6) output is fixed on clamping structure (7), casing (1) top is equipped with controller (2), pneumatic cylinder (6) and clamping structure (7) all with controller (2) electric connection.

2. A high-strength seamless steel tube cold rolling device according to claim 1, characterized in that: the clamping structure (7) comprises two symmetrically-arranged grabbing structures, the grabbing structures are symmetrically and fixedly provided with a position fixing plate (708), the position fixing plates (708) are fixedly connected through a fixing rod (711), through holes are formed in the position fixing plates (708), a driving toothed roller (709) matched with the grabbing structures is rotatably connected between the two position fixing plates (708) on one side, a motor (710) is arranged on one position fixing plate (708), the output end of the motor (710) is fixed to the driving toothed roller (709), and the motor (710) is electrically connected with the controller (2).

3. A high-strength seamless steel tube cold rolling device according to claim 2, characterized in that: the grabbing structure comprises a chassis (701), the chassis (701) is fixed between two position fixing plates (708), a plurality of limiting blocks (702) are fixed on the whole column of the circumference of the top of the chassis (701), sliding grooves are formed between the limiting blocks (702), sliding blocks (703) are arranged in the sliding grooves in a sliding mode, fixing rings (705) are fixedly connected to the inner sides of the sliding blocks (703), limiting rods (704) are welded to one end of the top of the sliding blocks (703), the top of the grabbing structure is rotatably connected with driven gears (706) meshed with driving gear rollers (709), a plurality of strip grooves (707) matched with the limiting rods (704) are equidistantly formed in the driven gears (706), and the axes of the driven gears (706) and the chassis (701) are on the same straight line.

4. The cold rolling device for the high-strength seamless steel tube according to claim 1, characterized in that: first mount (3) and second mount (4) all include the bottom plate, set up the round hole the same with guide rail hole (102) diameter on the bottom plate, and fixed mutually through the bolt between bottom plate and casing (1), and integrated into one piece has the L board on the bottom plate, and slide bar (5) are fixed on the L board.

5. The cold rolling device for the high-strength seamless steel tube according to claim 1, characterized in that: the top of the shell (1) is provided with a lifting ring seat (101), and the lifting ring seat (101) is provided with a lifting hole.

6. A high-strength seamless steel tube cold rolling device according to claim 3, characterized in that: the strip-shaped grooves (707) are distributed in an equidistant and aligned mode in the clockwise direction, the top of the limiting rod (704) is welded with a limiting head, and the diameter of the limiting head is larger than the width of the strip-shaped grooves (707).