CS272628B1

CS272628B1 - Equipment for antifriction bearings testing

Info

Publication number: CS272628B1
Application number: CS865188A
Authority: CS
Inventors: Lubomir Ing Soos; Stefan Doc Ing Csc Valcuha; Jozef Ing Babics
Original assignee: Lubomir Ing Soos; Stefan Doc Ing Csc Valcuha; Jozef Ing Babics
Priority date: 1988-12-22
Filing date: 1988-12-22
Publication date: 1991-02-12
Also published as: CS865188A1

Abstract

The design concerns the device for testing of rolling bearings and rolling bearing nodes under defined conditions of clearance or initial tension, radial, axial and moment loading. The device consists of a casing /2/, which is fixedly inserted into the frame /1/ , which is closed by flanges /6,7/, and of a shaft /3/ and its merit is the fact that distance and/or stabilization rings /8/ and pressing rings /8/, pressed by push nuts /11/ and a push flange /6/ are arranged in the casing /2/. The carrier /13/ with bearings /12/ of a drive belt pulley /4/ is connected with the casing /2/ and the drive belt pulley /4/ is connected by means of a spring /14/ with the shaft /3/. The rotary roller /18/ of the device for creation of radial force is mounted in the cavity of the shaft /3/ and it can consist of a telescopic arm /17/ hinged in the support /10/, which is pressed by a bolt /19/ through the dynamometer /20/. The draw bar /26/ of the device for creation of axial power is connected to the shaft /3/ and its second end is hinged in the draw board /23/, which is connected with a cross beam /30/ by means of drawbars /25/. The cross beam /30/ is equipped with a bolt /27/ and dynamometer /29/. Openings for reading of temperature and deformation are arranged in the frame /1/, casing /2/, flanges /6,7/ and holder /15/.<IMAGE>

Description

Vynález ea týká zariadenia na skúšanie valivých ložisk a valivých ložiskových uzlov, pozostávajúcich hlavně z radiálně axiálnych ložisk, ako sú jednoradové gulkové a kosoúhlým stykom alebo kuželikové, vhodné pre zistenie tuhosti a spolahlivosti, pričom sa hodnotí deformácia ložisk,' medzná frefcvencia otáčanie, axiálna a rediálna zafažitelnosf, teplota, s možnosfou merania vibrácii, trecieho momentu, doby chodu, při použiti rSznych druhov maziv a za roznych podmienok.The present invention relates to a device for testing rolling bearings and rolling bearing nodes, consisting mainly of radially axial bearings, such as single row spherical or angular contact or tapered, suitable for determining stiffness and reliability, assessing bearing deformation, limiting rotation frequency, axial and axial and redial capacity, temperature, with the possibility of measuring vibration, friction moment, running time, using different types of lubricants and under different conditions.

Deformačně charakteristiky valivých ložisk sa zisfujú na skúšobných zariadeniach, ktoré sú navrhované a konštruované prs prasns definovaný typ a počet ložisk, zvlášť pre nulové a zvlášf pre určité rozsahy otáčok,· zvlášf pre statické a zvlášf pre dynamické skúšky, zvlášf pre radiálnu, axiálnu a kombinovanú zafažovaoiu silu. 2 týchto dovodov majú takéto zariadenia len velmi obmedzené možnosti využitia.The deformation characteristics of antifriction bearings are found on test equipment which are designed and constructed with a breast type and number of bearings defined, especially for zero and especially for certain speed ranges, · especially for static and especially for dynamic tests, especially for radial, axial and combined zafažovaoiu power. In the case of these imports, such facilities have very limited applications.

Uvedené nevýhody odstraňuje zariadenie na skúšanie valivých ložisk a valových ložiskových uzlov za definovaných podmienok vole alebo predpStia? radiálneho, axiálneho a momentového zafaženia podlá vynálezu, ktorý pozostáva z puzdra pre uloženie skúšaných ložisk, z bokov uzavretého přírubami a neotočne uloženého ve fréme a z hriadela přepojeného k mechanizmiu pre vyvodzovanie otáčavého pohybu a ktorého podstatou je, že na hriadeíi a v puzdre sú usporiadané dištančné a/alebo stabilizačně krúžky, dotálčané suvne ueporiadanými maticemi a suvnou přírubou. K puzdru je pevne připojený unášač, na ktorom aú uložené ložiská náhonovej řemenice. Táto je prostredníctvom pera spojená s hriadelom, v dutině ktorého je axiálně suvne uložená otočná kladka zariadenia na vyvodzovanie axiálnej sily a s hriadel'om ' je pevné spojeni tiahlo uložené v osi hriadela a připojené k zariadeniu na vyvodzovanie axiálnej sily. Přitom v puzdre, vo fréme, v přírubách a v držiaku sú vyhotovené otvory pře snímaníe deformácii a teplot. Zariadenie na vyvodzovanie radiálnej sily méže pozostávaf z výsuvného ramena, ktorého Jeden koniec je otočné uložený v stojane a druhý koniec je opatřený kladkou dotláčajúcou v dutině hriadela. Výsuvné rameno je dotláčané skrutkou pre vyvodenie radiálnej sily cez dynamometer. Zariadenie na vyvodzovanie axiálnej sily mSže byf tvořené tiahlom, uloženým otočné v dutině hriadela, ktorého jeden koniec je pevne uložený v dutině hriadela a druhý koniec je uložený otočné v fažnej doske. Táto Je fažnými tyčami, uloženými suvne v opornej doske, spojená s priečnikom, ktorý je opatřený skrutkou pre vyvodenie axiálnej sily a dynamometrom.The aforementioned disadvantages are eliminated by the rolling bearing test and the roller bearing nodes under defined dude or bias conditions? a radial, axial and torque load according to the invention, comprising a housing for receiving the test bearings, flanges closed in a flange and non-rotatably mounted in a frame, and a shaft connected to a rotational movement mechanism and having a shaft and a bushing arranged / or stabilizing rings, fitted with sliding nuts and sliding flange. A gripper is fixedly attached to the housing on which the drive pulley bearings are mounted. It is connected by means of a tongue to a shaft in the cavity of which the rotary roller of the axial force exerting device is mounted axially, and to the shaft is a rigid connection of a rod mounted in the shaft axis and connected to the axial force exerting device. In this case, holes are provided in the housing, in the frame, in the flanges and in the holder for detecting deformations and temperatures. The radial force generating device may consist of an extension arm, one end of which is rotatably mounted in a stand and the other end is provided with a pulley pressing in the shaft cavity. The extension arm is pushed by a screw to apply radial force through the dynamometer. The axial force generating device may consist of a rod mounted rotatably in the shaft cavity, one end of which is fixedly mounted in the shaft cavity and the other end supported in a pivot plate. It is connected to the crossbeam, which is provided with an axial force screw and a dynamometer, by means of sliding bars mounted in the support plate.

Výhodou zariadenia podía vynálezu je, že umožňuje vykonávat skúšky jedného a viac, jednoradových a viacradových v požadovanom rozsahu frekvencii otáčok podlá ich druhu, zařazovaných radiálnou, axiálnou a kombinovanou zafažovacou silou. Umožňuje vykonávat skúšky združených ložiskových uzlov, pozostávajúcich z dvoch a viacerých ložisk pri Iubovolnom usporiadsní a pri roznych hodnotách vole alebo predpfftia bez toho, aby vzniklo přídavné zataženie ložisk sposobené priehybom alebo vibráciami vřetena. Axiálně suvné usporiadanie zariadenia na vyvodzovanie radiálnej sily na jednej straně zaisfuje rovnoměrně rozloženie zafaženia na všetky ložiská, na druhej straně umožňuje zafažovanie ložiek momentom sily.An advantage of the device according to the invention is that it makes it possible to perform tests of one or more, single-row and multi-row in the desired speed range according to their type, engaged by radial, axial and combined driving force. It allows testing of compound bearing nodes, consisting of two or more bearings, at any configuration and at various values of dude or pre-stress, without creating additional bearing loads due to deflection or spindle vibrations. The axially movable arrangement of the radial force application device on one side ensures uniform distribution of the load on all bearings, on the other hand it allows the bearings to be loaded by moment of force.

Na přiložených výkresoch sú znázorněné příklady vyhotovenia zariadenia podía vynálezu,· kde na obr. 1 je znázorněný nárysný rez kompletpým zariadehíntjina obr. 2 je nárysný řez zariadenim na vyvodzovanie radiálnej sily a na obr. 3 je pSdorys zariadenia na vyvodzovanie axiálnej sily.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view of the complete apparatus of FIG. 2 is a cross-sectional view of the radial force application device; and FIG. 3 is a plan view of an axial force application device.

Zariadenie podlá vynálezu pozostáva z frémy 1, v ktorej je pevne uložené puzdro 2 pre uloženie skúšaných ložisk, z bokov uzavreté přírubami 6, 7, Ve fréms 1 je umiestnený hriadel 3, prostredníctvom pružného pera 14 spojený s náhonovou remenicou 4. Náhonová ramenica 4 je uložená na ložiskách 12 na unášači 13, pevne spojenom s puzdrom 2. Na hriadeli 2 a v puzdre 2 sú usporiadané dištančné a/alebo stabilizačně krúžky 8 a dotláčacie krúžky .9» ^d°tláčané suvne usporiadanými maticami 11 a suvnou prirubou 6. V dutině hriadela 2 je axiálně suvne uložená otočná kladka 18 zariadenia na vyvodzovanie radiálnej sily.The device according to the invention consists of a frame 1 in which the housing 2 for receiving the test bearings is fixedly fixed, flanges 6, 7 flanged on its sides. A shaft 3 is arranged in the frame 1, connected to the drive pulley by a spring tongue 4. mounted on bearings 12 on the planet carrier 13, integral with the casing 2 on the shaft 2 and the housing 2 are provided spacer and / or stabilizing rings 8 and .9 the take-up rings ^»d ° tláčané slidably arranged in the nut 11 and the flange 6 slidably in the cavity of the shaft 2, the rotary roller 18 of the radial force application device is axially slidably mounted.

Toto sa skládá zo stojana 16, v ktorom je otočné uložené výsuvná rameno 17, na konci opatrené spomínanou otočnou kladkou 18» dotláčené v dutině hriadela 2 skrutkou 19 na vyvodenie radiálnej sily cez dynamometer 20. V dutina hriadela 3 je upevněná matica 28,This consists of a stand 16 in which the pivotable extension arm 17, at the end provided with said pivot roller 18, is pressed in the shaft cavity 2 by a screw 19 for applying radial force through the dynamometer 20. A nut 28 is fixed in the shaft cavity 3.

CS 272628 Bl prostredníctvom ktorej je k hriadelu 31 pevne připojené tiahlo 26« Druhý koniec tiahla 25 je uložený otočné v ložisku 24 v fažnej doske 23, ktorá je tažnými tyčami 25. spojená s priečnikom 30, Tažné tyče 25 sú suvne uložené v opornej doske 22,· ktorá je pevne spojená s opornými tyčami 21, zasunutými do frómy 3., Priečnik 30 je opatřený skrutkou 27 na vyvodzovanie axiálnej sily a dynamometroro Vo fréme .1» puzdre přírubách J5, .7 a držiaku 15 sú vyhotovené otvory pre meranie deformácii a teplot, pričom v držiaku 15 je uložený snímač deformácie.CS 272628 B1 by means of which a shaft 26 is fixedly attached to the shaft 31. The other end of the shaft 25 is mounted rotatably in a bearing 24 in the bearing plate 23 which is connected to the crossbeam 30 by tension rods 25. The cross-member 30 is provided with a screw 27 for exerting an axial force and a dynamometer. In the casing of the flanges 15, 7 and the holder 15, bores are provided for measuring the deformation, and The deformation sensor is mounted in the holder 15.

Pri činnosti zariadenia podía vynálezu sa skúšané ložiská 5., v danom případe riadiálne gulkovó ložiská v TOT usporiadaní, nasadia na hriadel 3, vložia sa do puzdra 2 a z bokov sa uzavrú přírubami Ji, 7, Priestory medzi ložiskami sa možu vyplnif dištančnými a/alabo stabilizačnými krúžkami JS. Po vytvořeni požadovanej kombinácie ložisk J5 v 0 usporiadaní sa vnútornó krúžky ložisk 5., dištančnó a/alebo stabilizačně krúžky 3, dotlóčací krúžok 3 a sfahovaoi krúžok 10 stlačia suvne usporiadanými maticami .11« K stlačeniu vonkajšich krúžkov v X usporiadaní ložisk 5, dotláčacieho krúžku 9, dištančných a/alebo stabilizačných krúžkov 8 slúži suvná priruba S« Radiálně zafažovacia sila sa vyvodí pootáČaním skrutky 10 a meria sa dynamometrom 20« Táto radiálna síla sa prenesie otočnou kladkou 18 na dutinu hriadela 3 a tým aj na ložiská £ uložené v puzdre 2. Axiálna sila sa vyvodí pootáčaním skrutky 27, meria sa dynamometrom 29 a prenáša sa fažnými tyčami 25 na fažnú došku 23 a z nej oez ložisko 24 a tiahlo 26 na hriadel 2· Radiálně a axiálně zatažené ložiská alebo ložiskové uzly sa móžu skúšat v pokoji, alebo aj v pohybe, do ktorého sa možu uviésf otáčanim náhonovej řemenice 4, z ktorej sa otáčavý pohyb prenáša pružným perom 14 na hriadel 3, Deformácie a teploty sa merajú snímačmi, umiestnenými v otvoroch vyhotovených vo fréme 1, puzdre 2, přírubách 6, 7 a v držiaku 15, v ktorom može byt umiestnený snímač teploty a deformácie.In the operation of the device according to the invention, the test bearings 5, in this case the radial ball bearings in the TOT arrangement, are mounted on the shaft 3, inserted into the housing 2 and sealed with flanges 17, 7, laterally. The spaces between the bearings can be filled with spacers and / or stabilizing rings JS. After forming the desired combination of bearings 5 in the arrangement, the inner rings of the bearings 5, the spacer and / or the stabilizer rings 3, the retaining ring 3 and the tightening ring 10 are compressed by the sliding nuts 11. To compress the outer rings in the bearing arrangement 5, 9, the sliding flange 8 serves the spacers and / or the stabilizing rings 8 «The radial insertion force is exerted by turning the screw 10 and measured with a dynamometer 20« This radial force is transmitted by the rotary roller 18 to the shaft cavity 3 and thereby to the bearings 6 in the housing 2 The axial force is exerted by turning the bolt 27, measured by a dynamometer 29 and transferred by the gripping rods 25 to the pile thatch 23 and from there through the bearing 24 and the pull rod 26 to the shaft 2 · Radially and axially retracted bearings or bearing nodes can be tested at rest also in a movement that can be initiated by rotating the drive pulley 4 from which The deformation and temperatures are measured by sensors located in the holes made in the frame 1, the housing 2, the flanges 6, 7 and in the holder 15, in which the temperature and deformation sensor can be placed.

Claims

1. Apparatus for testing rolling bearings and rolling bearing nodes under defined dude or bias conditions, radial, axial and torque loads, consisting of a housing for bearing the test bearings, a flange-closed flange and a non-rotatable shaft coupled to a pivot mechanism 2), characterized in that spacers and / or stabilizing rings (8) and thrust rings (9) are provided on the shaft (3) and in the bushing (2), supported by sliding nuts (11) and a sliding flange (6). a carrier (13) is fixedly connected to the housing (2), on which are mounted bearings (12) of the drive pulley (4), which are connected by means of a tongue (14) to a shaft (3) in the cavity. (18) of the radial force application device and with the shaft (3) is a rigidly connected rod (26) mounted rotatably in the shaft axis (3) and connected to the device the axial force is applied, wherein holes are provided in the housing (2), the frame (1), the flanges (6, 7) and the holder (15) to sense deformations and temperatures.

Device according to claim 1, characterized in that the device for exerting the force of force is formed by an extension arm (17), one end of which is rotatably mounted in the atojone (16) and the other end is provided with a roller (18) pressing in the shaft cavity. (3), wherein the extension arm (17) is pushed by a screw (19) for exerting a radial force through the dynamometer (20),

CS 27262 Bl

3. The device according to claim 1, characterized in that the device for exerting axial force consists of a rod (25) mounted rotatably in the shaft cavity (3), one end of which is fixedly received in the shaft cavity (3) and the other end is mounted rotatably in a base plate (23), which is pulling bars (25) mounted slidably in a support plate (22), 3 connected to a crossbar (30) provided with a screw (27) and a dynamometer (29).