CN2224053Y

CN2224053Y - Annular split-type steel-pipe cutting machine

Info

Publication number: CN2224053Y
Application number: CN 95212312
Authority: CN
Inventors: 郑克志; 张军; 陈志海
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-02
Filing date: 1995-06-02
Publication date: 1996-04-10
Anticipated expiration: 2005-06-02

Abstract

The utility model relates to an annular split-typed steel pipe cutting machine, comprising a base, a split-typed gear disc mounted on the base, a cutting knife and a slope knife used for cutting steel pipes arranged on the gear disc as well as a power section and a reducer 7. The utility model is characterized in that the base is an annular open architecture composed of two half annular shapes in splice joint; the reducer adopts a quadric retarding mechanism of a worm wheel, a worm gear and a helical gear. The utility model has the advantages of convenient assembly and disassembly, good cutting quality and smooth running, etc., avoiding closing down of cutting knives.

Description

Annular opposite opened steel pipe slope cutting machine

The utility model relates to a kind of device that various pipelines is cut and cut the slope.

At present when pipe laying, what adopt usually is first gas cutting, carries out the traditional handicraft of welding behind the hand grinding tool polishing groove again, has both increased working strength of workers, reduced operating efficiency again, and after the processing welding, pipeline does not reach design standard usually.In addition, also have a kind of triangle cutting machine, its support is formed by connecting by three joggle trusses; support is hexagon, and joggle truss is adjusted nut by six and connected, in running; adjusting nut is easy to generate loosening; and its decelerator adopts row heart wheel to slow down, and when radial cutting, cutting resistance, torsion are very big; thereby operation is not steady; shut down phenomenon so in cutting, often produce knife, make cutting surface uneven cutting vestige occur, so that influence welding quality.And dismounting was extremely inconvenient during this triangle cutting machine used at the scene, also occurred main engine bed and toothed disc unparalleled phenomenon easily.

At above-mentioned the deficiencies in the prior art, the purpose of this utility model is a kind of novel steel pipe slope cutting machine of design, makes its easy accessibility, operates steadily, and is good to the sloping quality of cutting of steel pipe, improves the welding quality of pipeline accordingly.

The major technique solution that realizes above-mentioned purpose is, this annular opposite opened steel pipe slope cutting machine, comprise support, be installed in the opposite opened toothed disc on the support, the cutting knife and the sloping cutter that are used to cut sloping steel pipe are arranged on toothed disc, and power section, decelerator is characterized in that, support is by two semi-circular annular opposite opened structures that are spliced into, and decelerator adopts worm and gear, helical gear secondary speed-reducing mechanism.

The utility model has the advantages that, what decelerator used is worm gear, Worm type device, the helical gear that once decelerates to by it carries out secondary speed-reducing, can make speed reducing ratio reach 26: 1, thereby has a resistance to impact preferably, when the operation of a machine is cut, can be because of the increase of resistance, torsion, and produce galloping.Support adopts opposite opened, and it is made of two joggle trusses, so it had both kept its depth of parallelism when the work dismounting, has guaranteed perpendicularity again, can not occur shutting down phenomenon because of torsion produces knife greatly.And also have easy accessibility, quick, cut advantages such as sloping quality is good.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is stand structure figure.

As shown in Figure 1, annular tooth wheel disc 2 is similar with prior art, be spliced by two semi-circular toothed discs, knife rest 4 is installed on toothed disc 2, sloping cutter 10 and cutting knife 11 are fixed on the knife rest, for avoiding feed inhomogeneous, be furnished with auxiliary cutter 12 on cutting-off tool rest in addition, the quantity of its intermediate slide is generally three, and the quantity of sloping cutter is generally one, cutting knife is two, and the quantity of certain sloping cutter and cutting knife also can be determined on a case-by-case basis.One of inventive point of the present utility model is the annexation of toothed disc 2 and support 1, support is provided with the guide wheel 3 of trough of belt, toothed disc 2 is stuck on the guide wheel, toothed disc is fixed on the support with the transmission case 6 that links to each other with toothed disc by guide wheel 3, the utility model another part unlike the prior art is the decelerator part, by air pump 9 with transmission of power to air motor 8, motor 8 passes through by worm gear, the reducing gear that worm screw constitutes carries out slowing down the first time, carry out secondary speed-reducing by helical gear again, because worm and gear, helical speed reduction gear structure 7 is a known technology, not expression in detail also repeats no more at this among the figure.Helical gear is passed to toothed disc by transmission case, the driven wheel disc spins after rotating speed is reduced to the rotating speed that needs again.Wherein transmission case is fixedly mounted on the support.Also be provided with claw 5 on the support 1.

The structure of support 1 as shown in Figure 2, it is by two semi-circular 14, the 15 opposite opened annulus supports 1 that are spliced, and also is provided with guide wheel attaching clamp 13, transmission case attaching clamp 16 on support.As for the opposite opened support is that two semiorbicular erection methods have many kinds, can adopt conventional erection method, connect as bolt, pin 17, and also can be an end hinge, the other end is realized splitting of support with pin.

In addition, the screw rod sliding axle of the fastening claw 5 on support is marked with tangible scale mark, so that be adjusted to steel pipe machine center concentric.In order to realize the autofeed cutting, on knife rest, adorn one and refute wheel, dead man is installed on guide wheel, toothed disc whenever turns around like this, and dead man is just stirred and is refuted wheel commentaries on classics one angle, and corresponding sloping cutter or cutting knife be the feed certain distance just, realizes autofeed.

The concrete course of work of the present utility model is, slope cutting machine suit or folding are assembled on the steel pipe to be processed, with the fixing support 1 of support set bolt 12, with claw 5 machine is clamped on the steel pipe again, scale mark according to claw screw rod sliding axle is adjusted to steel pipe machine center concentric, adjust knife rest 4 and make cutting knife, the groove cutter is near outer diameter of steel pipes, booster air pump 9, equal pressure reaches one regularly, start the switch of air motor 8, gearing speed-reducer 7 and transmission case 6 are delivered to toothed disc 2, the toothed disc rotation, knife rest 4 forms automatic cutting by refuting wheel dead man autofeed simultaneously.In working angles, can adjust automatically according to the degree of depth of groove, to reach desirable welding effect.These facility have automatic Pipe Cutting and the one step completed function of adverse slope mouth, also can use separately in case of necessity.

This machine is easy to use, simple to operate, general operator finishes watching the operation instruction postscript and just can operate, its dismounting time generally just can finish at 10-12 minute, and efficient is three times of original machine, as operate as normal, cutting external diameter φ 230, the steel pipe of wall thickness 8mm after clamping is intact, just be cut into domatic to it so long about 6 minutes.Having tangible scale mark in addition on the screw rod sliding axle of fastening claw, is convenient and reliable in the adjustment of the center of fuselage and workpiece, not only saves time but also laborsaving.Knife rest adopts the wedge adjusting device, can not produce wearing and tearing because of often using, scrap phenomenon.

This machine is because of being that to adopt air motor be power, the flames of anger, and cold cut is cut automatically, all can carry out safety operation under inflammable, explosive environment, so can use in the laying of pipeline and repairing.In addition, the power of this machine is also electronic, and its operation principle is the same with air motor.

The utility model can be made series model, and cut coverage is the steel pipe of φ 150～φ 1000mm, and cutting sloping wall thickness is δ 2～20mm, and this machine also is applicable to cuts slope processing to pipes such as aluminium, copper, stainless steels.

Claims

1, a kind of annular opposite opened steel pipe slope cutting machine, comprise support 1, be installed in the opposite opened toothed disc 2 on the support, the cutting knife 11 and the sloping cutter 10 that are used to cut sloping steel pipe are arranged on toothed disc, and power section, decelerator 7, it is characterized in that: support 1 is for encircling 14, the 15 annular opposite opened structures that are spliced into by two and half shapes, and decelerator 7 adopts worm and gears, helical gear secondary speed-reducing mechanism.

2, annular opposite opened steel pipe slope cutting machine according to claim 1, it is characterized in that: support 1 is provided with the guide wheel 3 of trough of belt, and toothed disc 2 is stuck on the guide wheel 3, toothed disc is fixed on the support 1 with the transmission case 6 that links to each other with toothed disc by guide wheel.

3, annular opposite opened steel pipe slope cutting machine according to claim 1 is characterized in that: be equipped with on knife rest 4 and refute wheel, on guide wheel 3 dead man is installed, constitute autofeed mechanism.

4, annular opposite opened steel pipe slope cutting machine according to claim 1 is characterized in that: the screw rod sliding axle of the fastening claw 5 on support is marked with and adjusts the machine scale mark concentric with workpiece easily.