CN211100903U

CN211100903U - Straightening device for galvanized steel pipe

Info

Publication number: CN211100903U
Application number: CN201922060061.8U
Authority: CN
Inventors: 宋晓辉; 何国华; 张德刚
Original assignee: Tianjin Youfa Steel Pipe Group Co Ltd
Current assignee: Tianjin Youfa Steel Pipe Group Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-28
Anticipated expiration: 2029-11-26

Abstract

The utility model belongs to the technical field of steel pipe production, in particular to a straightening device of a galvanized steel pipe, which comprises a load plane, and a straightening oil cylinder, a clamping oil cylinder, three cutting sleeves, a fixed seat and a terminal end cap which are arranged on the load plane, wherein the straightening oil cylinder is arranged in the middle of the load plane, the fixed seat and the terminal end cap are respectively arranged at two sides of the straightening oil cylinder, and the clamping oil cylinder is positioned at one side opposite to the fixed seat; the utility model discloses a press from both sides the front end of tight hydro-cylinder front end and alignment hydro-cylinder and set up the cutting ferrule that has the slips, press from both sides tightly and the alignment in-process, all be through slips and steel pipe contact, swing joint between cutting ferrule and the tight hydro-cylinder of clamp, the fixing base in addition can be at the steel pipe alignment in-process like this, the slips terminal surface changes along with the angle change of steel pipe, can not make the slips edge cause destruction to the steel pipe surface, protects the galvanizing coat, just the utility model discloses simple structure is practical.

Description

Straightening device for galvanized steel pipe

Technical Field

The utility model belongs to the technical field of steel pipe production, concretely relates to aligning device of galvanized steel pipe.

Background

The finished pipe of the galvanizing equipment often has the phenomenon of bending due to equipment, electric appliances, processes and the like in the production process (note; the bending refers to large bending, steep bending and no crater). Once the pipe bending phenomenon occurs, 2-4 small pipes are straightened by using hanging rings pre-embedded in a roof beam column of a workshop, and the bent part of the bent steel pipe is inserted into the hanging rings by a person and straightened by manpower. The small pipe can be bent by a person, the large pipe cannot be used, and the person can not fold the large pipe. In the prior art, the bent pipe is placed below a plurality of steel pipes and then the bent pipe is hung by a sling crane to be straightened, so that great potential safety hazards exist in the operation, and accidents are caused by the fact that the steel pipes are round slings which easily slide down in the process of lifting the steel pipes.

SUMMERY OF THE UTILITY MODEL

The utility model provides a straightening device of galvanized steel pipes, which solves the problems in the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a straightener of galvanized steel pipe, includes the load plane and installs a alignment hydro-cylinder, a clamping cylinder, three cutting ferrule, a fixing base and a terminal end cap on the load plane, the alignment hydro-cylinder is installed load plane's middle part, fixing base and terminal end cap are installed respectively the both sides of alignment hydro-cylinder, clamping cylinder is located relative one side of fixing base, the inboard of cutting ferrule is equipped with the slips the same with treating alignment steel pipe circular arc degree, the outside of cutting ferrule is equipped with connecting portion, two of them the cutting ferrule passes through connecting portion respectively with fixing base, clamping cylinder's output swing joint, another the cutting ferrule passes through connecting portion with alignment hydro-cylinder fixed connection, terminal end cap include with the load plane rotates the movable roll of connecting.

Preferably, the slips pass through the bolt with the cutting ferrule is detachable to be connected, the bolt runs through by the outside the cutting ferrule with the slips spiro union.

Preferably, the cutting sleeve is hinged to the fixed seat, the cutting sleeve is hinged to the telescopic rod of the clamping oil cylinder, and the cutting sleeve is parallel to the fixed seat, the cutting sleeve and the rotation plane of the clamping oil cylinder are parallel to the load plane.

Preferably, the end plug further comprises two fixing plates and a rotating shaft located between the two fixing plates, and the movable roller is located on the outer wall of the rotating shaft and is rotatably connected between the two fixing plates through the rotating shaft.

Preferably, the movable roller is provided with a contact surface with the length of 150mm and the depth of 20 mm.

Preferably, a sliding column used for heightening the steel pipe to be straightened is arranged beside the tail end plug.

Preferably, the load plane is a steel plate with a length of 2.5m and a width of 1.5 m.

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

the utility model discloses a press from both sides the front end of tight hydro-cylinder front end and alignment hydro-cylinder and set up the cutting ferrule that has the slips, press from both sides tightly and the alignment in-process, all be through slips and steel pipe contact, swing joint between cutting ferrule and the tight hydro-cylinder of clamp, the fixing base in addition can be at the steel pipe alignment in-process like this, the slips terminal surface changes along with the angle change of steel pipe, can not make the slips edge cause destruction to the steel pipe surface, protects the galvanizing coat, just the utility model discloses simple structure is practical, low in production cost.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a steel pipe to be straightened according to the present invention;

FIG. 2 is a schematic structural view of the steel tube of the present invention after being straightened;

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

fig. 4 is a schematic structural view of the middle end plug of the present invention.

In the figure: 1. a load plane; 2. straightening an oil cylinder; 3. clamping the oil cylinder; 4. a card sleeve; 41. a connecting portion; 42. slips; 43. a bolt; 5. a fixed seat; 6. a tail end plug; 61. a fixing plate; 62. a movable roller; 621. a contact surface; 63. a rotating shaft; 7. a slide column.

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.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a straightener of galvanized steel pipe, include load plane 1 and install a alignment hydro-cylinder 2 on load plane 1, a clamping cylinder 3, three cutting ferrule 4, a fixing base 5 and a terminal end cap 6, alignment hydro-cylinder 2 is installed at load plane 1's middle part, the both sides at alignment hydro-cylinder 2 are installed respectively to fixing base 5 and terminal end cap 6, clamping cylinder 3 is located one side relative of fixing base 5, the inboard of cutting ferrule 4 is equipped with the slips 42 the same with treating alignment steel pipe circular arc degree, the outside of cutting ferrule 4 is equipped with connecting portion 41, wherein two cutting ferrules 4 respectively with fixing base 5 through connecting portion 41, clamping cylinder 3's output swing joint, another cutting ferrule 4 passes through connecting portion 41 and alignment hydro-cylinder 2 fixed connection, terminal end cap 6 includes the movable roll 62 of being connected with load plane 1 rotation.

In the embodiment, the methods of straightening the arc compression roller and the method of straightening the black pipe straightener all change the external curve of the steel pipe by the pressure of the roller, the designed equipment has good straightening effect, but the equipment can certainly damage a zinc layer on the outer surface of a finished pipe and cannot be compensated, the scheme adopts a design scheme that a double-hydraulic-cylinder sliding roller type design is used as a main body, a hydraulic cylinder is welded at a position well found on a zinc steel plate with the length of 2.5 meters and the width of 1.5 meters, so that the straightening oil cylinder 2 is arranged in the middle of a load plane 1, a slip 42 with a circular arc shape like that of the straightened steel pipe is adopted as the head of the straightening oil cylinder 2, two clamping sleeves 4 are respectively movably connected with the output ends of a fixed seat 5 and a clamping oil cylinder 3 through a connecting part 41, the designed aim is that an included angle is formed between the straight line of a bent pipe and the straight line of the straightened pipe on the equipment, and the degree of the included angle depends on the bending degree, the larger the bending degree is, the larger the angle is, the straight line of the steel pipe can be changed during straightening, if the steel pipe is not movably connected, the arc surface of the clamping slip can damage the surface of the steel pipe, and the tail end plug 6 comprises a movable roller 62 which is rotatably connected with the load plane 1; the design that 2 tile boxes are vertically fixed with a shaft is adopted, the circular arc surface of the shaft is washed by a milling machine on the circular shaft to wash a plane which is 150mm long and 20mm deep, namely a contact surface 621, and then an iron plate with the same size is welded on the shaft, so that the contact surface between the pipe and the plug is enlarged, and the phenomenon of crater is prevented once straightening is carried out.

Specifically, slips 42 can be dismantled with cutting ferrule 4 through bolt 43 and be connected, and bolt 43 runs through cutting ferrule 4 by the outside and slips 42 spiro union, can change suitable slips 42 according to the diameter of waiting to straighten the steel pipe.

Specifically, cutting ferrule 4 is articulated for fixing base 5, and cutting ferrule 4 is articulated for the telescopic link of clamping cylinder 3, and cutting ferrule 4 is parallel with fixing base 5, cutting ferrule 4 and clamping cylinder 3's rotation plane and load plane 1, the angle change of adaptation alignment in-process steel pipe.

Specifically, the end plug 6 further includes two fixing plates 61 and a rotating shaft 63 located between the two fixing plates 61, the movable roller 62 is located on the outer wall of the rotating shaft 63 and is rotatably connected between the two fixing plates 61 through the rotating shaft 63, so that the movable roller 62 can rotate to adapt to the angle change of the steel pipe in the straightening process.

Specifically, the movable roller 62 is provided with a contact surface 621 with the length of 150mm and the depth of 20mm, so that the contact surface with the steel pipe to be processed is increased, and the phenomenon of a flat pit during straightening work is prevented.

Specifically, the side of the tail end plug 6 is provided with a sliding column 7 for heightening the steel pipe to be straightened, and the steel plate to be straightened can be supported.

Specifically, the load plane 1 is a steel plate having a length of 2.5m and a width of 1.5 m.

The utility model discloses a theory of operation and use flow: the bending point of the steel pipe to be straightened is placed in the slip 42 at the front end of the straightening oil cylinder 2, the two ends of the steel pipe to be straightened are fixed through the slip 42 at the front end of the clamping oil cylinder 3, the slip 42 at the front end of the fixing seat 5 and the contact surface 621 on the end plug 6 respectively, in the clamping and straightening processes, the slip 42 is in parallel contact with the steel pipe, in the steel pipe straightening process, the end surface of the slip 42 changes along with the angle change of the steel pipe, the edge of the slip 42 cannot damage the surface of the steel pipe, a zinc coating is protected, and the problem of straightening of a bent finished steel pipe is solved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a straightener of galvanized steel pipe which characterized in that: the straightening device comprises a load plane (1), and a straightening oil cylinder (2), a clamping oil cylinder (3), three clamping sleeves (4), a fixed seat (5) and a terminal plug (6) which are arranged on the load plane (1), wherein the straightening oil cylinder (2) is arranged in the middle of the load plane (1), the fixed seat (5) and the terminal plug (6) are respectively arranged at two sides of the straightening oil cylinder (2), the clamping oil cylinder (3) is arranged at one opposite side of the fixed seat (5), slips (42) with the same arc degree as a steel pipe to be straightened are arranged at the inner side of each clamping sleeve (4), connecting parts (41) are arranged at the outer sides of the clamping sleeves (4), two clamping sleeves (4) are respectively movably connected with the output ends of the fixed seat (5) and the clamping oil cylinder (3) through the connecting parts (41), and the other clamping sleeve (4) is fixedly connected with the straightening oil cylinder (2) through the connecting parts (41), the end plug (6) comprises a movable roller (62) which is rotatably connected with the load plane (1).

2. The straightening device of a galvanized steel pipe according to claim 1, characterized in that: the slip (42) is detachably connected with the clamping sleeve (4) through a bolt (43), and the bolt (43) penetrates through the clamping sleeve (4) from the outer side and is in threaded connection with the slip (42).

3. The straightening device of a galvanized steel pipe according to claim 1, characterized in that: the clamping sleeve (4) is hinged relative to the fixed seat (5), the clamping sleeve (4) is hinged relative to a telescopic rod of the clamping oil cylinder (3), and the rotation planes of the clamping sleeve (4) and the fixed seat (5), the clamping sleeve (4) and the clamping oil cylinder (3) are parallel to the load plane (1).

4. The straightening device of a galvanized steel pipe according to claim 1, characterized in that: the tail end plug (6) further comprises two fixing plates (61) and a rotating shaft (63) located between the two fixing plates (61), the movable roller (62) is located on the outer wall of the rotating shaft (63), and the rotating shaft (63) is rotatably connected between the two fixing plates (61).

5. The straightening device of a galvanized steel pipe according to claim 1, characterized in that: the movable roller (62) is provided with a contact surface (621) with the length of 150mm and the depth of 20 mm.

6. The straightening device of a galvanized steel pipe according to claim 1, characterized in that: and a sliding column (7) used for heightening the steel pipe to be straightened is arranged beside the tail end plug (6).

7. The straightening device of a galvanized steel pipe according to claim 1, characterized in that: the load plane (1) is a steel plate with the length of 2.5m and the width of 1.5 m.