CS264019B1 - Filtering press - Google Patents

Abstract

Filter press containing kit filter plates placed between the support plates plate, and pressure plate, clamping plate mechanism, plate shift mechanism and a sludge unloading mechanism with toothed teeth rods whose teeth point upwards and which are vertically sliding, and beyond projections, toothed teeth interacting with each other rod, is equipped with an additional rod, placed under the rack of the unloading mechanism sludge and "articulated with it." rails, the rack is equipped the stop and the additional bar is horizontal sliding and is positioned on the longitudinal guide surface with stoppers interacting 8 end of additional bar ·

Description

(54)

The filter press comprises a set of filter plates positioned between the backing plate and the pressure plate, the plate clamping mechanism, the plate displacement mechanism and the gear sludge unloading mechanism with teeth pointing upwardly and vertically displaceable, and projections interacting with the teeth the bar is equipped with an additional bar, can wall under the toothed bar of the sludge unloading mechanism and "articulated to it by means of a bar, wherein the toothed bar is equipped with a stop and the additional bar is horizontally sliding and positioned on a longitudinal guide surface with stops" acting 8 ends additional bars ·

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OIIHCAHHE H30EPETEHHH K ABTOPCKOMY CBHHETEJIECTBY 3aHBJieHo: 03.01.83 3aHBKa 35 '3530144 / 23-26 MKH ³ B 01 D 25/12

Abtopm: Γ.Μ.Κοπκηη, A. $. IIinaxun, C.n.CanoMaTHH

3aHBHTen &: aBTopbi

Ha3BaHHe θ3θ6ρβτβΗΗΗ: ΦΗΠΕΤΡ-IIPECC

H3o6peTeirae othochtch to φΗΠΒτρ-npeccaM c h BepTHKanbHbíM pacnonoaceHneM ππητ MoweT 6μτβ HcnQjih3OBaHo b xHMHuecKoS, ΗβφτβχΗΜΗΠβεκοή, rimpoMeTannyprHHecκοή, ýrojibHoň h «Pyrax oTpacjiHX npoMbnnnenHocTH« South Φιηιβτροββηηη cycneH3Hň H o6e3BOJKHBaHHH OCaflKOB CTOBHbK BOfl,

IÍ3B6CTeH φκπΒτρ-npecc (91,812), what «epacamHH Ha6op Φηπβτροβ8πβημχ ππητ, pasMemeHHbix Meat« y ynopHoň h HaatHMHoň ππητβμη, 3y6naTyio foaming nepeMemaeMyio well HanpaBnHiomHM βηοπβ φΗΠϊιτρ-npecca b Bepxitéň ero nacTH c bo3mojkhoctí> io onycκβηηη b HHatHee nonoaceHne b Hanane pasrpysKH OCaflKa H no. I.eMa B BepXHee nonoweHHe no οκοηηηηηη pa3rpy3KH.

HcnoJib3OBaioie 3y6naToň peňKH «πη οτκποηθηηη ππητ not" AET "οπχηογο 3φφεκTa Bbirpy3KH oca« Ka and pacnonoxeHne iianpaBnHiomnx b BepxHeň Nacra φΗΠΒΤρ-πρβοca, CO3 "Hey AET« o6cTBO b o6cnyacHBaHHH η ρθμοητθ.

Han6onee 6πη3κημ no TexHHnecicoň cymHOCTH h «ocTHraeMOMy pe3ynbTaTy ηβπηeTCH φκπΒτρ-npecc what« epacatnnň HaSop Φηπβτροβθπβημχ ππητ, ycTaHOBneHHbix MEAC "y ynopHoň h naatHMHoň ππητβμη, MexaHH3M saatHMa ππητ, MexaHHs nepeMemeHHH ππητ c κβρβτκοή h MexanHSM pa3rpy3KH oca« Ka c 3y6naTbiMH peňicaMH, sy6bn coTopbix HanpaBneHbí BBepx, h ycTaHOBneHHbíMH c BosMOJKHOcTbio sepTHKanbHoro nepeMemeHHH, BbicTynbi Ha, THoBoBbix cToponax ππητ, BsaHMOfleňcTBy6beHeBe6Bo6b6He6Bo6b6He6Bo6b6He6Bo6b6He6Bo6b6H6

ΠρΗ BbirpyaKe ocaflxa 3y6naTaH peňKa. ycTaHosneHa b KpaňneM ΒβρχΗβΜ παπακεhhh tbk, hto rpe6HH 3y6bes BbiCTynaioT wan BepxHen κροΜκοή CTHaceK. ®nnbTpywmaH ππητΒ nepeMemaeTCH no Haicn OHHo iuiockocth 3y6a, no «HHMaeTCH BBepx h,« OShShh »ep BepxHero rpe6HH, pe3KO onycxaeTCH ΒΗΗ3, nponcxo · HT BCTpnxHB πβΗΗT B B B B B B B B B B B B B B B B B B B B B B B B B

- 2 264019

HefloeraTOK H3BecTiioro <}> NNI> TP-npeeca - cjwjkhoctí, kohctpykuhh, oSycnoBjíeHnan neó6xonHMocTbio ycTanoBKH cneiuiajibHoro npHBOfla απη noflbema h BO3BpaTa peňKH, BBOflOM gjieMeHTa 3βτομ3τη33αηη ynpaBneHHH υκη33ηημμη npHBOflaMH.

Henb nacTOJnuero ο3ο6ρβτεΗΗΗ - oSecneneHne HafleacHon Bbirpy3KH ocaflKa. nocTaBjteHHafl uenb flocraraeTcn those ητο φκπΒτρ-πρεεο, coflepacanfliň Ha6op + HJibTpoBanbHbix iuiht, ycTaHOBJíeHHbix meam ynopHoň h HaacHMHoň nnHTaMH, MexaHH3M 3aaoíMa iuiht, MexaHH3M nepeMemeHHH ππητ c h KapeTKoň ^Mexa: HH3M pa3rpy3KH ocaflKa c 3y6qaTUMH peňKaMH, 3y6bH κοτορωχ HanpaBjíeHM BBepx,

H yCTaHOBneHHblMH C BO3MOaCHOCTbt0 BepTHKaJIbHOro nepeMemeHHH, BbICTynbI Ha óoKOBbix cropoHax ππητ, B3anMoneHCTByromHe c 3y6bHMH 3y6naToň peňKH oh cHaóaceH nonannHTejibnoň peňKoň, ycraHOBneHnoň non 3y6naTOň peňKoň MexaHH3Ma pa3rpy3kh ocaflKa h mapHHpno coeflHHeHHOň c HEN nocpeflcTBOM nnanKH and syčnaTan Penk cHafiaceHa to κοηηθ mapHHpHO ycTaHOBneHHbíM ynopoM, npn stom flononHHTenbHaH pENKA ycTaHosneHa c βο3μο3κηοοτβιο ropH30HTajibHoro nepeMemeHHH pa3MemeHa to npoflojlblioň HanpaBJIHJOmen C ΟΓρΑΗΗΗΗΤMMoHoFoHoMoHoFoHoFoHoHMoHoMoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHo

Tako BbinojiHeHHe MexaHH3Ma Bbirpy3KH ocaflKa oSecneniiBaeT 3HanHTenbHoe chhaceHHe MeTannoeMKocTii 3a cner orpaHHHeHHH απηημ 3y6naToň peňKH h noBbiuienHe HafleaCHOCTH 3a CH6T ΗΟΚΠΗΜΘΗΗΗ CneflHaJIbHbIX MexaHH3M0B nOflbĚMa Η ΒΟ3Βρ3Τ3 3y6 ~ Naton peňKH and Taras cncTeMbi ynpaBneHHH HMH. Βο3μοη (ηοοτβ nepeMemeHHH 3y6naToň peňKH orpaHHneHHoň fljiHHbí well HanpaBnniomHM Bflonh HaÓopa iuiht flaeT BO3MoacHOCTb Η3ΓΟΤΟΒΠβΗΗΗ φΗΠΒΤρ-ΠρβΟΟΟΒ SoJIblUOH eflHHHHHOH nOBepXIIOCTH (flOl200M ²⁾ 6E3 yBejiHneHHH pa3MepoB 3y6naToň peňKH.

Ha Φηγ.1 npeflCTaBjíeH o6ihhh bha φΗΠΕτρ-ηρεοοβ c MexaHH3MOM Bbirpy3KH ocaflKa; 'on Φηγ.2 - o6mnň bha MexaHH3Ma Bbirpy3KH ocaflKa bo Β33ημοηθηοτβηη c KapeTK3mh MexaHH3Ma nepeMemeiiHíi iuiht;

Ha .3ηγ.3 - nonoaceime ayONnaTbix peeK bo βρθμη nepeMemeHHH ππητ h pa3rpy3KH ocaflKa;

Ha Φηγ.4 - nanojseHH 3y6naTbix peex no οκοηηηηηηη pa3rpy3KH ocaflKa. t & HjibTp-npeCC COflepHCHT Ha6op φΗΠΒΤρΟΒΗΠΒΗΒΚ ΠΠΗΤ 1 (φΗΓ. 1, 2) pa3MemeHHbK Me »Cfly ΒβρΤΗΚβΠΒΗΟ yCTaHOBJíeHHblMH ynopHOH 2H HaXHMHOň 3 ΠΠΗΤ3ΜΗ, COeflHHeHHbíMH Meafly coóoň CTHaacaMH fourth Φηπβτροβηπβημθ ππητβι ycTaHOBJíeHH Ha CTHatKax c B03MoxiiocTbio hx npoflonbHoro nepeMemeHHH c πομοπφιο MexaHH3Ma 5 nepeMemeHHH ; ΠΠΗΤ. ΒΤΡΠΒΤΡ OCHameH MeXaHH3MOM 6 pa3rpy3KH OcaflKa, COCTOHUíHM H3 npoflonrosaToro Kopnyca 7 c οτκρβϊτμμ BepxHHM KpaeM. MexaHHSM 5 nepeMemeHHH φιιπΒτροBaflbHbK IUIHT 1 ΒΚΠΙΟΗΗΘΤ peBepCHBHbtíí npHBOfl CO 3Be3flOHKaMH 8 npHBOflHbie fleπη 9 HaTíiisHoe ycTpoňcTBO 10 KapeTKH 11 nepeMemeHHH Φηπβτροβππβηηχ ππητ first KapeTKa 11 coflepaoiT Kopnyc 12 c mapHHpHO ycTaHosneHHbíMH ynopaMH 3axBa 13 h ~ 6 TaMH 14th MexaHH3M pa3rpy3KH ocaflKa coflepacHT flBe mapHHpHO coeflHHeHHbie Meac ~ fly co6on ropH30HTanhHbie peňKH 15 η ημθιοιοηθ 3yóbH 16 (.3ηγ.3,4), nanpaBneHHbie BBepx, h ycTaHOBneHa b Kopnyce 7 c βοτεοηηηοοο cο. hhh. flononHHTenbHaH peňxa 17 ycTaHOBneHa b Kopnyce 7 c βο3μο »ηοοτβιο npoflonbHoro Γ0ρΗ3ΟΗΤ3ΠΒΗΟΓ0 ΠβρθΜΘΠΙΘΗΗΗ, ββ KOHflbl 18 H 19 BbICTynaiOT 3a npef.

PeňKH 15 h 17 mapHHpHo coeflHHeHbí Me »NY co6oň nocpeflcTBOM nnaHKH 20 Takhte o6pa3OM, HTO πρκ KpaňHeM nonoaceHHH ropH3OHTanbHo nepeMemaeMoň peňKH 17 Bepxhhh Penk 15 HaxoflHTCH β KpaňHeM ηη ^ ηθμ nonoaceHHH h ee syóbn 16 pacnorioaceHbi IMAC BepXHeň κρομκη ετεκοκ Kopnyca 7 and πρκ fípyroM KpaňHeM nonoaceHHH roPH3OHTanbHo nepeMemaeMoň peňKH 17 3y6naTaH Penk 15 HaxoflHTCH b KpaňHeM ΒβρχΗβΜ nonoaceHHH h ee 3y6hH 16 pacnonoaceHbí Bbíme Bepxneň κρομκη οτθηοκ κορnyca seventh Kopnyc 7 (Φηγ.1) ycTaHOBneH c BOSMoacHOCTbio npoflonbHoro nepeMemeHHH

- 3 Ha npoflOJibHon Hanpaanphenom 21, 3aKpenneHHO Ha HaSooen cTHXKe 4 TaKHM o6pa3OM, HTO BepXHHe ΓΟ βΓΟ CTeHOK pacnonOXeHbl Ha ypOBHe ΗΠΗ HHJKe BepXHen HJJK1 BepXHen

HanpaBJíHionířie ημθιοτ ογρηηηηητθπη 21 22 23 Ha ycTaHOBneHHbie hx KOHflax b KOTopwe yrnipaioTCH corners ropH3OHTanbHO nepeMemaeMoň peňKH 17 (Φηγ.4) h CMemax 3Ty Penn b npoTHBononoxHoe HanpaBneHHe πρκ πομοποι nnaHKH 20 H3Mehhiot nonoxenne 3y6naToň peňKH 15th

Ha ^ κ φκηΒτροΒθηΒ nnHTax ΒΗποηκβΗΗ δοκοΒωβ BbiCTynbi 24 B3aHM0fleňcTBywmHe Bo BpeMfl pa3rpy3KH ocaflKa c 3y6bHMH 16 3y6naTOň peňKH 15th Ha KOHfle 3yÓnaToň peřtKH 15 mapiiHpHo ycTaHOBneH noflnpyxHHeHHbiň ynop 25th BnaflHHH 3y6beB 16 3y6uaToň peňKH 15 Ballad 6μτβ 3anonHeHM ynpyrHM MaTepnanoM 26th

Ha Kopnyce 7 (.2ηγ.2) ΒΜποπΗβΗΗ BbicTynbi 27 h 28, and Ha KapeTKe 11 - 3anen 29, pacnonoxeHHbi Mexfly BbicTynaMH 27 h 28 h BaaHMOfleňcTBywmH c c hhmh npn nepeTemeHH 11

<E> HnbTp-npecc cHaóxeH MexaHH3MOM 30 3axHMa πηκτ (Φηγ.1), coeflHHeHHHM c HaxHMHo 3h CTHXKaMH 4 c ynopHo πηκτού 2.

MexaHH3M 30 3axHMa 6 ματα rHflpaBnHHecKHM ηπη MexaHHHecKHM, πρκ 3TOM ero paSouH op πη6ο ιπτοκ πορπίΗΗ rHflpoflHnH6fofnhoBoHnH6foHnH6fo.

®HflbTp-npecc paOoTaeT cneflywmHM o6pa3OM.

Πρπ ΒκηιοΗβΗΗΗ MexaHH3Ma 30 333κημβ πηΗτ ero paSonHň Oprah HanpHMep ΠΙΤΟΚ πορπίΗΗ rHflpouHHHHflpa, BO3fleňcTByeT Ha HaxHMHyio πηκτγ 3h nepeMemaeT H & 6op Φηπβτροβηπβηβιχ ππητ 1 b cTopoHy * ynopHoň ππητη h OKHMaeT Ha6op πηκτ Institute of Philosophy onpefleneHíioro ycHnHH, ηθο6χοαημογο flnn αοοτηχθηηη repMeTH3aflHH MexiuiHTHoro npocrpancTBa, night nero b φΗΠΒτρ -ηρβοο noflaioT cycneH3Hio αηη Φηπβτρηαηη. OnepaflHH Mexηπβτρηαηη MexaHH3M 3axHMa 30 otbohht HaxHMHyw 3 ot Ha6opa φΗΠΒτροΒβπΒΗΗΧ ππητ 1. KapeTKH 11 nepeMemaioT ot ynopHo 2 and HaxHMo 3, BO3fleňTByH 3aflenaMH 29 Ha BbicTynbi 28 Kopnyca 7 flo conpHKOCHOBeHHH money. 17c orpaHHHHTeneM 22nd flononHHTenbHaH foaming <ocTaHaBHHBaeTCH and 17, Kopnyc 7 npoflonxaeT NEP »iemaTbcH and 3y6naTaH pefiKa 15 nOFL fleňcTBHeM Kopnyca 7h nnaHKH 20 nepeMemaeTCH b BepTHKanbHOM HanpaBneHHH BBepx η, πρηηηβ paóonee nonoxeHHe, ocTaHaBňHBaeTCH. KapeTKH 11 BO3Bpamai0TCH κ naKeTy Φηπβτροβ3πβημχ ππητ 1 3axBaTaMH 14 6epyT nepsyto φυπητργιοπίΥΐο πηκτγ h nepeMemawT ee b CTopoHy oTBefleHHoň HaxHMHoň ππητη third ®HnbTpoBanbHan nnnTa 1 6okobhmh BHCTynaMH 24 npoxoflHT well HaicnoHHoň nnocKOCTH BbicTynoB 3y6naToň peňKH 15 noflHHMaeTCH BBepx and, floňflH flo βθριπηηη $ y6hes 16, pe3KO onycKaeTcn BHH3, yflapHHCb 6okoBbíMH BHCTynaMH 24 b BepxHW nNocKocTb CTHxeK 4, ocTaHaBnHBaeTcn, and ocaflOK oTpbiBaeTcnn 6εβεβεβεβα 6επε φκπ βκπβ. npoňflH nocneflHHň 3y6 16 3y6uaToň peňKH 15 Φηπβτροβηπβη3η nnHTa 1 npHXHMaeTCH κ HaXHMHoň nnHTe third KapeTKa 3aflenoM 11 29 27 B3aHMOfleňcTByeT c BbiCTynoM Kopnyca 7 nepeMemaeT ero Ha MAR paBHbiň TonmflHe φΗΠΒτροΒβπΒΗού ππητη first Πρκ nepe-; MemeHHH cneflywmeň ππητη 3y6naTaH Penn 15 ποαπρυχηηθηηημ ynopoM 25 ynnpaeTch b πηκτγ 1H ocTaeTCH Ha mecro flo ποπηογο npoxoxfleHHH cneflywmeň ππητη 1 no 16 3y6bHM 3y6naToň peňKH 15th Thkhm o6pa3OM, nepeMemaeTCH SecB HaSop ΦηπβTpoBanbHbix ππητ 1 ocBoGoxflancb ocaflKa rpm.

nocne nepeMemeHňH nocneflHeň φκηΒτροΒΗΠΒΗοή ππητη 1 CHAPTER 11 B03BpamaeTCfl; b cTopony ynopHoň ππητη 2h 3aflenoM 29 B3aHMOfleňcTByn c βηοτυπομ 27 Kopnyca 7 nepeMemaeT ero b CTopoHy ynopHoň ππητη 2 Penk .17, flo floňflH orpaHHHHTenn 23 ocTaHaenHBaeTCH and 3y6naTaH peňxa 15 nOFL fleňcTBHeM KapeTKH 11 h 20 nnaHKH onycKaeTcn bhh3.

- 4 I

3y6bH 16 3y6HaTbix ρβεκ 15 onycKaurrcH inixe βθρχηηχ kpomok Kopnyca 7h BepxHeft nnocKOCTH οτπχεκ 4 Flare βο3μοχηοοτα Ha6opy φΗηυτροΒβπΒΗωχ iuiht 1 πρκ Garay nepeMemaTtcn κ ynopHoň ruiHTe second Ilocne 3axHMa KOMnneKTa (JninbTpoBajibHMX IUIHT 1 UHKJI pa6OTbI φΗΠΒΤρ-ΠρβεΟΗ ΠΟΒΤΟΡΗΘΤΟΗ.

Takhte o6pa3OM, Snaroflapn cHaSxeHHio φΗΗΑτρ-πρεοεε flononHHTenbHoň peňKoň, ycTaHOBJíeHHoň nOFL 3yfínaToň peňKoň MexaHH3Ma pa3rpy3KH ocaflKa h mapHHpHO coe ~ flHHeiiHoň c Hen nocpeflCTBOM iuiaHKH and TanX cHa6xeHHio 3y6naToň peňKH mapmipHO ycTaHOBJíeHHbíM Ha KOHfle ynopOM h pa3MemeHHto ee c B03MOXHOCTbio ropH30HTanbHoro nepeMemeHHH Ha npoflonbHoň HanpaBjunoiueň c orpaHHHHTenHMH , B3aHMOfleňTByiomHMH c KOHiiaMH flononHHTenbHon Foam, oSecnenHBaeTCH HaflexHan MexaHH3HpoBaHHaH βμrpy3Ka ocaflKa.

ΦΟΡΜΥΠΑ H30BPETEHHH ^! «TaJibTp-npecc, coflepxamnň Ha6op Φηπβτροββηβ ^ ιχ παητ, ycTaHOBneHHbix Mexfly ynopHoň H HaXHMHOň IUIHTaMH, ΜβΧ3ΗΗ3Μ 3aXHMa IUIHT, MexaHH3M nepeMemeHHH IUIHT c KapeTKoň h MexaHH3M pa3rpy3KH ocaflKa c 3y6naTbiMH peňKaMH, 3y6bH KOTopbix, HanpaBJíeHbí BBepx h ycTanoBneHHbíMH c βο3μοχηοοτβιο BepTHKanbHoro nepeMemeHHH, BbicTynbi Ha 6oi <OBbix CTopoHax παητ, B3aHMOfleHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHoHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHoHeHoHeHoHoHoHeHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHoHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHeHe; 3y6aaaaaaaa mexaHH3Ma pa3rpy3KH ocaflKa h mapmipHO coeflHHeHHon c Heň nocpeflCTBOM πηβΗκκ, and 3y6úaTaH duvet. cHafixeHa Ha KOHfle uiapHHpHO ycTaHOBneHHbíM ynopoM, πρκ that floiiojiHHTeJibHafl Penn ycTaHOBJíeHa c h βο3μοχηοοτβιο ropH3OHTajibHoro nepeMemeHHH pa3MemeHa Ha npoflonbHoň HanpaBJíHtomeň ογρθηηηητθπημη c, c B3anMOfleňcTByioiipiMH KOHflaMH flonojiHHTenbHoň peňKH.

PE Φ EPAT ΦΗΠΒΤΡ-ΠΡΕΟΟ «řHJibTp-npecc, coflepxamHH Hačop φΗηυτροΒηπΒίΟιίχ πηητ 1 ycTaHOBneHHbix Mexfly ynopHoň η ηβχημηοη παητημη 2, 3, MexaHH3M 30 3axHMa iuiht, MexaiiH3M 5 nepeMemeHHH πηκτ h MexaHH3M 6 pa3rpy3KH ocaflKa c 3y6naTbiMH peňKaMH 15 3y6bH 16 κοτορΒίχ HanpaBJíeHbí BBepx, h ycTaHOBJíeHHbíMH C bo3moxhoctbm BepTHKanbHoro nepeMemeHHH, BMCTynbi 24,. B3aHMOfleňCTByiomHe c 3y6bHMH 16 3y6naToň peňKH 15 cHá6xeH flononHHTenbHoň peňKoň 17 ycTaHOBneHHoň nOFL 3y6naToň peňKoň 15 MexaHH3Ma 6 pa3rpy3KH ocaflKa h niapimpho coeflHHeHHoň c Hen nocpeflCTBOM ππηηκη 20 npiraeM 3y6naTaH Penn 15 CHafíxeHa ynopoM 25 and flononHHTenbHan Penna 17 ycTaHOBJíeHa c BO3MOXHOCTbro ropH3OirrajibHoro nepeMemeHHH h pa3Memena Ha npoflonbHon HanpaBJiHomein 21 c orpaHHUHTenHMH 22, 23, B3aHMOfleňTByiomHMH c κοηηθμη flononHHTenbHon money 17.

®nrypa 1,3.

AND

IIpn3HaHO Η3ο6ρβτβΗΗβΜ no pe3ynbTaTaM 3KcnepTH3M, ocymecTBneHHo TocyflapcTBeHHbíM Κομητθτομ CCCP no fl3M H3o6peTeHH η οτκρητη.

Claims (1)

SUBJECT OF THE INVENTION A filter press comprising a set of filter plates disposed between a support plate and a pressure plate, a plate clamping mechanism, a carriage plate sliding mechanism, and a meohanisiaus unloading of sludge racks with teeth that are vertically displaceable and protrusions on the side walls a toothed rack having teeth, characterized in that, in order to ensure reliable sludge unloading, it is provided with an additional rod located underneath the meohanism unloading rack toothed and articulated thereto by means of a bar, and the toothed rack provided with a hinged bearing on the keno; It is horizontally displaceable and is located on a longitudinal guide surface with stops, interacting with the ends of the auxiliary rod.