SU1516154A1 - Arrangement for lubricating the tube from inside - Google Patents

Abstract

The invention relates to pipe production and relates to devices for applying lubricant to the inner surface of a pipe during rolling in an automatic mill. The purpose of the invention is to increase the uniform distribution of the lubricant. When rolling, the tube, crimping in rolls on the mandrel 5, moves it, as well as the flange bushing 2 and the body 7 of the lubrication head attached to it to the shank 13. At the same time, the sleeves 8 and lubricant briquettes 9 of solid lubricant slide along the fixed inclined guides 14 and move radially against the inside of the pipe. Upon completion of rolling, spring 11 returns to its initial position the lubrication head, flange bushing and mandrel. 7 il.

Description

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 i,; (. iuin-TC:. uiiiovH to pipe-rolled /., lipoMjB (); jrTH- and Kac; u TCH devices for ii liR ceiinH cMcUKM to the inner surface-: .4 ib Tpyoi.i I pii rolling in automatic camp.

The object of the invention is to increase ;; 1 the dimensionality of 1 distribution of lubricant.

Pa .fig. 1 shows the device; 1, l, k11) s mchnch three, side view; in fig. 2 -:;, - nc.i Л А iia fm. I: on fng. 3 - box-, 1 cm 4i; 4; i; .i heads of the device; on: m; | 4 |; .1rsm D) B in FIG. 3; on

: J, i: D) iiaapc; -; In B on {|) i. 3; in fig. 6 - s ..) (K vnyu; 1neniya of the place of a heel of a leash ..u) 4Miji (: iB with springs; on ihiii-7 p H N C G in Fig. 6.

contains rod 1, extension: -. ОМ 1, Ь.1а1: icing sleeve 2 with ij; i Hcii 1 unfolding 3 nut) St. channick) with flamne-n-Ds rutiN nipts G, сма: -, ;) H - with Cornus 7, in Naza.h which is a holder: 8 with overhead support; n.kch kosgim with briquettes 9 solid., 011 CN1 / ii-n. . IZhcnnyyu on the rod and stanov.ii iiiiMv; in the plane of the flange sleeve; and. to / cd) n:;: stu 1ami 10 rods and cornus sma heads 11p 11. 11. At the same time. . : iijiiixpi. ii.icHbi tip 12, .yy ;;;; m | i.:; and udonniii to the likes of 14, ii (; ... li vo ideally to the grooves of corium-1.1; .. i iiai.iviiiiii.io onorite clips

g | : hsrzhnem screws 15. rii.j .1.с- |) live from the release 1 | 11xar klcimi nruzhna- 1-1N1.mn and b. yuke pins. -h |; / 0 -spring springs 18. next obra; ohm

 vrrpoiicTBa inside the pipe with a tip 12, and the ientri- iio rolling - tails

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. pb..cpma s, V valka.h on the frame- | icMr: i;: ici it. as well as fixed: i; . iiicByio sleeve 2 and body | : - 1 hour 13. In this case, the clips 8 .k 1 | P1xgs 9, fixed 7; ((: (interleaving about 14; pcTii., Located at node VII I M1CH1 mobile inclined: I. rigidly attached 1; .. I g- .;) W1; 1o 1, and unmixed - r;.;:;: LialipairieHnH, I press with: i; oncp.HocTH pipes. Effort; ..; and -chivasts spring 18. By- 50 i:) V |; rokatki mandrel 5 release- .. ni.i and spring 11 return; a- s., a11 with its sleeve 2 and core-) jioc in. yuzhenie, with this. . ;: iii iiibiMi b11pketamn 9 sci-oi;, ii, 1 aira1).) Nim and under the action of b5. i-.ii: i i ii not) are replaced in the radiv-Mvii HIM to the S-string. At the same time, i: KMi i; .i

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It is sewed and becomes smaller than the diameter of the tip 12, which is necessary to protect the lubricant head during the capture of the pipe by rolls, i.e. during the unsteady rolling process. A new pipe is supplied and the cycle is repeated.

The magnitude of the change in the lubricating briquettes 9 depends on the yr; ia of the inclination of the directions P1i.x 14 and the magnitude of the stroke /, which is regulated when assembling the thickness of the washer 3. As the lubricant briquettes wear, a washer of smaller size is established, which increases the radial Do not mix lubrication briquettes to compensate for their wear. The lubricant briquettes are replaced when the distance C (Fig. 6) is close to zero.

Permanent ii con I act 1: low-density briquettes I of internal HcjBepxHocTbw pipes provide a uniform layer of lubricant over the non-expansion and along the length 11) of the rolled pipe, which leads to an equalization of the distribution of the lubricant: , to uve, the quality of improvement and the improvement of the quality of pipe inside surfaces.

(/ the automaticity of the mandrels of the automati1 of the mill is estimated by the co. The quality of rolling 1) is killed on one ijnpaBKC.

The quality of internal), 1 noiiCpxHocin is estimated by iuiKiT from the output of BTOpoio copra, which is x- (is activated by the presence of internal flaws Hi ii of the surface of the pipes.

One mandrel of an automatic mill using the proposed device rolled RO --- 35 pipes, and at the 11th (a known O-20 - 20 2p pipes. The number of pipes rejected on 1) .1 on the inner surface using the proposed one , is 3.53% og of the total number of rolled t) ub, known 4.08%.

Thus, a prefilter. A device for lubricating the pipe from the inside makes it possible to increase the uniformity of the distribution of the lubricant and thereby increase the (.) Brightness of the mandrels of the automatic mill by 1.4-1.5 times; reduce the number of t () ub with defects on the inner nozzle in the form of scratches and zags 1.16 times.

Claims (1)

Invention Formula A device for lubricating the pipe from the inside, containing a rod with a projectile, has a flange bushing installed on it with the possibility of limited axial tie-up, a mandrel fixed to the bushing and located in front of the mandrel and a lubrication head connected to the flange bushing, characterized by that, in order to understand the uniform distribution of the lubricant, it is equipped with holders with inclined support briquettes solid lubricant, while the lubrication head body is made with mutually perpendicular open parallel grooves in the parallel flat surfaces under the clips with solid lubricant briquettes, and the rod equipped with inclined maning, | j) ni), respectively, according to the grooves of the housing under the inclined bearing pad, and with a spring located between the eix) protrusion and the hull cMa3O4Hoii. skirts B, B, 7.  -J B3 FIG. FIG. 8-3 FIG. five / 7 t Mr FiJS. 6