CN201913096U - Dust suction head sealing device for dust collection of steel tube - Google Patents

Abstract

The utility model provides a dust suction head sealing device for steel pipe dust removal. It belongs to the field of steel pipe manufacturing. The whole device is fixed on the bracket, and the steel pipe enters the device along the axial direction. One end of the sliding sleeve is connected with the cylinder through the piston rod, and the other end is connected with the swing rod and the inner and outer clips through the stay cord. The inner and outer clips are evenly distributed along the circumference, and move radially under the drive of the swing rod. The rubber sleeve itself has elasticity, and can perform the same radial expansion movement with the movement of the inner and outer clamps, and can perform radial contraction movement relying on its own elasticity. Due to the elasticity of the rubber sleeve itself, it can firmly cover the steel pipe; while the rubber sleeve is holding the steel pipe tightly, the pull rope is in a relaxed state, so that the position of the swing rod can adapt to the centerline of the steel pipe and the centerline of the flange. The sealing effect of the ash suction head device is guaranteed. The utility model has simple structure and convenient operation, improves the sealing performance of the dust removal device, improves the dust removal effect, facilitates thorough dust removal, and improves the factory workshop environment.

Description

A kind of steel pipe dedusting ash suction head sealing device

Technical field

The utility model belongs to steel pipe and makes the field, relates to a kind of deashing dust pelletizing system that is used for steel pipe finishing process, and main application waits foreign material for iron scale in the removing steel pipe and ash bits, for operations such as follow-up flaw detection are got ready.

Background technology

In steel pipe finishing process, dust arrester mainly is an iron scale and foreign material such as ash bits of clearing up steel duct by pressure-vaccum gas, for follow-up work is prepared.Existing pressure-vaccum apparatus for ash mainly is an open architecture, and the method for employing mainly is that steel duct is carried out pressure-vaccum, as to being blown into compressed air in the steel pipe, outside foreign material discharge pipes such as iron scale, and at steel tube end part dust-absorbing mouth etc. is set and the foreign material sucking-off is gone etc.

Wherein, at the pressure-vaccum apparatus for ash or inhale in the apparatus for ash, the sealing quality of ash suction head and steel pipe affects the dust removing effects of steel pipe to a great extent.Difference by its sealing means can roughly be divided three classes.The first kind is the planar end surface closed type, is about to steel tube end part and presses close to the ash suction head end, inhales ash; Second class is a conical surface seal, and ash suction head is the funnel-form device, and after steel pipe entered into dust arrester, the conical surface of funnel-form ash suction head contacted with steel pipe, fastened the end of steel pipe, inhaled grey dedusting.The 3rd class is cavate sealing, and after steel pipe entered two ends and groove shape device that the suction ash system is connected, buckle closure formed an airtight cavity.Then, the whole cavity that is comprising steel pipe is inhaled grey dedusting.

Yet, existing these some problems of method ubiquity.As in the first kind, the second class ash suction head, not tight because of the contact between cab over type ash suction head, funneling ash suction head and the steel pipe, cause poor sealing, directly influence dust removing effects, and easily cause the leakage of dust, and work workshop dust is filled the air, pollute working environment; And that the characteristics of the 3rd class ash suction head are dust removal processes is simple, but the sealing effectiveness of cavity also is difficult for guaranteeing, and because whole chamber is inhaled grey dedusting, has increased the load of system, has strengthened resource consumption virtually.

Summary of the invention

The utility model is exactly the poor sealing that exists in the production in order to solve, and influences the problem of dust removing effects, has designed a kind of dedusting ash suction head sealing device.Its purpose is that utilizing steel pipe itself is exactly the advantage of seal chamber, realizes the excellent sealing between ash suction head and the steel pipe, improves dust removing effects, maintenance shop environment, reduces the cleaner energy consumption.

A kind of steel pipe dedusting ash suction head sealing device, this device comprises exhaust column, cylinder, piston rod, sliding sleeve, support, stay cord, flange, fork, gum sleeve, inner clamp, Grip etc.Cylinder passes through the wherein pressure of Compressed Gas, and the guiding piston rod is done linear reciprocating motion; The motion of piston rod drives sliding sleeve and does same linear reciprocating motion.One end of sliding sleeve is connected with cylinder by piston rod, and the other end then is connected with fork by stay cord.The sliding sleeve of motion can drive inside and outside clip and do radial motion by stay cord and fork.The gum sleeve outer rim is passed through along the circumferential direction, and equally distributed inside and outside clip links to each other with fork.Flange then is after steel pipe enters into this device, is used for the fastening steel pipe, fixedly the steel pipe home position; Whole device is fixed on the support 5.Described inside and outside clip is six or eight clips that are circularly and evenly distributed, and inside and outside clip is a rigid mount.Like this, when steel shaft before entering ash suction head, the motion result of whole device is to make inside and outside clip do radial dilatation motion, drives the gum sleeve diameter and increases, and does the radial dilatation motion.Fixed the home position of steel pipe when flange after, cylinder is done counter motion, loosens until stay cord.Gum sleeve is owing to the elasticity of himself is done the radial contraction motion, and reduced finally makes gum sleeve firmly be enclosed within on the outer wall of steel pipe.The diameter of gum sleeve can change within the specific limits, makes the gum sleeve of each diameter go for the steel pipe of certain diameter scope.The stay cord that loosens helps fork and gum sleeve adapts to the decentraction of steel pipe center line and flange center's line, thereby has strengthened the effect that gum sleeve is held steel pipe tightly, has guaranteed sealing.

Major advantage of the present utility model is: because whole dust-removal system after flange has been installed, has still been installed gum sleeve, can fixedly treat the position of dedusting steel pipe accurately.And the combination of gum sleeve and steel pipe is tight, makes the sealing of whole system improve greatly, has increased the effect of dust pelletizing system, has prevented the leakage of dust, is beneficial to thorough dedusting, improves the factory floor environment.In addition, the utility model also has advantages such as simple in structure, easy to operate.

Description of drawings

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

Fig. 2 in this device with the overall diagram of steel pipe contact portion.

Among the figure: the 1-exhaust column; The 2-cylinder; The 3-piston rod; The 4-sliding sleeve; The 5-support; The 6-stay cord; The 7-flange; The 8-fork; The 9-gum sleeve; The 10-steel pipe; The 11-inner clamp; The 12-Grip.

The specific embodiment

In order further to understand summary of the invention of the present utility model, characteristics and effect of the present utility model, so conjunction with figs. further specifies this device:

Referring to Fig. 1 and Fig. 2, the motion of the Compressed Gas in the cylinder 2 is shunk piston rod 3, drives sliding sleeve 4 and moves backward.Sliding sleeve 4 drives inside and outside clip 11 and 12 and does the radial dilatation motion by stay cord 6, fork 8.Gum sleeve 9 is done same radial dilatation motion thereupon, and the gum sleeve diameter increases, and makes the steel pipe 10 for the treatment of dedusting enter this device smoothly.When treating that the dedusting steel pipe enters the position of flange 7, flange then fastens steel pipe, determines its home position.At this moment, cylinder 2 is done counter motion, and gum sleeve 9 firmly fastens the steel pipe 10 for the treatment of dedusting because the elasticity of himself is done the radial contraction motion.After this, exhaust column 1 aspirates dedusting to it.Because gum sleeve 9 is tight with contacting of steel pipe 10, improved dust removing effects greatly, and the leaking of dust can effectively prevent dedusting the time, improved the workshop condition health.

Claims (2)

1. A dust-absorbing head sealing device for steel pipe dust removal is characterized in that it comprises an exhaust pipe (1), a cylinder (2), a piston rod (3), a sliding sleeve (4), a support (5), a stay cord (6 ), flange (7), swing rod (8), rubber sleeve (9), inner clip (11), outer clip (12); the cylinder guides the piston rod to do reciprocating linear motion through the pressure of the compressed gas; the piston The movement of the rod drives the sliding sleeve to do the same reciprocating linear motion; one end of the sliding sleeve is connected to the cylinder through the piston rod, and the other end is connected to the swing rod and the inner and outer clips through the pull cord; the outer edge of the rubber sleeve is evenly distributed along the circumferential direction. The inner and outer clamps of the steel pipe are connected with the swing rod; the flange is used to fasten the steel pipe and fix the basic position of the steel pipe after the steel pipe enters the device; the whole device is fixed on the support (5). 2. The dust-absorbing head sealing device for steel pipe dust removal according to claim 1, characterized in that the inner and outer clamps are six or eight clamps evenly distributed around the circumference, and the inner and outer clamps are rigid devices. It can do radial movement under the drive of the swing rod; the rubber sleeve itself has elasticity, and can do the same radial expansion movement with the movement of the inner and outer clips. When the rope (6) is relaxed, it is in the state of shrinking and holding the steel pipe tightly; when the rubber sleeve is holding the steel pipe tightly, the pull rope is relaxed.

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