SU737089A1 - Method and apparatus for surface-strengthening treatment of gears - Google Patents

Description

. Iz1vestno also ustroyspvo for processing urrochn guide toothed wheels, comprising a frame ustaiovlenny 1for in.st1rument having two tsili1ND richbS1Kih zhorpu sa, | mouth io1vlvN | GOVERNMENTAL to "tsrave, deformation mi ruyushie rollers arranged on the housing on B (and; ntyu1voy LIKIN, and also a current generator with a frequency, an elakprichaak. With the tool, and sprayers 3.

A disadvantage of the known device is the shallow depth of the hardened y-layer (0, 3 mm) in the ground. With the passage of high-current, high current through the contact, the deforming roller-tooth of the wheel, the co-operating surface of the defrosting roller, hears the charge and the charge will be applied. and partly loses piles 1mex1butching characters .HISTINES; design complexity, O | bu | SLOVLAND by the presence of an electronic driver and a power source mode control; the passage of electric current from a bye (map | rokvod shche10 korpu.sa to the deforming roller takes place through the brush of its size, which causes the water contact and leads to the exit of the tool out of order.

The goal is from a breach, and it is to increase P1roiz1VDitIlIstOst | And and the quality of hardened p1P | pkh1nosti.

The decree is achieved due to the fact that the wheel is divided into two sections and the treatment is carried out simultaneously on the first half of the wheel, the opposite side and opposite diameters of the teeth are created on the site (S1 application). The edges and oi6pai6oT1ku of tooth IB in each zone are insulated from the 01st zones, and the inairpeiB of the teeth of the wheel is carried out along the neck width of the teeth. In order to expand the technological capabilities by 0 | In some cases, after cooling down the sweep, they will be discontinued by the 1PW width of the wheel and machined in the top pavtar yut.

Such a device was implemented by an iKOTopoe spa with an inducer made of an IB-shaped form, rigidly fixed on the body, while the external diameter of 1C Pirali: And the thickness of its turns is less than the outer diameter | of the meter and the thickness def, or1 miriruyuschim | rol (IKS1v. In addition, it is equipped with a housing cover for the product, mounted on the frame divided by radial partitions into chambers. In addition, the TOIKOB generator connection to the output frequency with the instrument is filled in the form of current collectors mounted on the casing in the working zone of the inductor.

FIG. 1 rokavano 1CT1V10 device for the implementation of anoiooi6a for the machining of gear wheels, a top view; in fig. 2 is a section A-A in FIG. one; in fig. 3 view

arrow B in FIG. 2; in fig. 4- tool in 1mo.ment of gear processing; in fig. 5 times (cut BB in Fig. 4; Fig. 6 is a view along arrow G of Fig., 4; Fig. 7-

a variant for processing cules with a width of 500 mm and more; in fig. 8-section DD in FIG. four.; in fig. , 9-casing ycTpoucTiBa.

Gear: 1, About | Barabat1vabmoe proposed method, set

and 3; on the table 2 devices (fng.

12).,. :

The device extends one bed 3 with ve (curved guides, on which the qinnopT 4 is installed with the movement of the worm with a single milling cutter 5, and horizontal guides, on which the table 2 is mounted with the possibility of moving 2. The worm milling machine 5 is designed for | cutting teeth on the gear gear with the final size.

On the table guides 2, two headstocks 5 and 7 are mounted with the possibility of pegremeshing in the horizontal plane. In the heads 5 and 7, quenched-deforming BHCTipyMeHTbi 5 are installed, which simultaneously process the opposite lateral CTqpOHbi teeth, which are located diametrically ..

Drives of the worm milling cutter 5 and the wheel to be machined are carried out by mechanisms connected to the electrostatic motor 9 via the slotted shaft 10 (Fig. 2).

The mechanism of the irivod of the hearth mill 5

(Fig. 1) includes two pairs of conical

wheels // and / 2 and a pair of wheels)

13 to rotate. Airlacs (not shown) with

mounted worm 5.

The mechanism LRNV | Oda gear / when machining it with a cutter 5 includes a barrel of bevel gears 14 (FIG. 2), a titer, 15 interchangeable spur gears, 1 and 16 flange gear, 17 frimtion and a worm gear 18. Worm ganoi the transmission wheel 18 is connected to the 01bry | batyam wheel 1. P) drives (Fig. 1) quenching-defor1M1Ilyushchiy InTST | .

The drive mechanism of the clamping-deforming tool 8 includes a pair of ionic wheels 23, a hüonic gear 23 and a pair of cylindrical wheels 24 connected to a mandrel 25 by a quenching-deforming tool 8 (Fig. 1, 4).

The mechanism (near the toothed wheel / wheel (processing it for the rear deforming tool 5 (Fig. 1)) includes a pair of conical wheels 26, a guitar 27 replaceable cylinders | Rich wheel gears, friccian 28 and a worm gear / 5 connected to the processed gear kosy / (f-ig. 2)., 3 akl10ch; H10-defor (M1i: saspoit, dividing to the strument 8, from two slichkitschichaakyh 29 n 30 cases (Fig. 4). Kapiniyic 29 1 on the left for help 25 before the ball and over the axial displacements of the sleeve. On the iKoipinyce 29, it is made of a dielectric, for example, a PCB, installed and sunken. about the screw lily of the welded "3 copper sheets 31. The profile, the height and the width of the inductor are taken from the condition of the guaranteed calculated gap between it and the baths, m Pr0 | the wind wheel 1. The beginning and the end And | ND | ukatra is emitted in the form of Rings, with which (vajnatyarigos taknomNiki 32 and 33. Others with the aim of enhancing the efficiency of the inductor in length are limited to the zone TP (| phiG. 8) and connected to geiHepanoipoiM HDTV (not moiKaiaaiH) current conductor 34 and 34. Vnut.rnzhuzhtora Z zazo, p. D on a textolite bushing of a ustsdzle: on a screw screw, on a screwdriver; S1vod 36, 1 intended to deplete iBoro mapite in the middle of the inductor 31 "ay. 3il inductor cooling is emulsified by emulsion coming from pipes | 01P | p01 of supply 37 through drilling to the side of ring 38, heradhetiz-iravaanoto from (w | ulkiki sal (n: I1ka / MI 39. Emulsion l.hohoant by screw or by (between inductor and The 1mcnite1pro1v o1iam and the averlen1I | Ja1M in the inductor 31 and the housing 29 gets into the drilling of the scabbed 30. The pressurization of the shells 29 and 30 O1 is | saline 39 and a metal flap. rollers 40 podschruzhvnen guns oi 41 so that | between the defarming roller and A bom wheel was assigned an indelible pressure (Fig. 4). The headstocks 6 and 7 (Fig. 1) were installed on the side of the housings 30 (Fig. 4). The housings 42 were divided; three separate chambers, each of which separates 2- 5 teeth of the wheel from the rest in the horizontal and vertical planes. In the first chamber, the casing 43 OMONTI | p10van - the coolant cooling unit 43 for hardening the teeth of the wheel 1. Cooling the working zone 8 through the odreher 44 (Fig. , 5) extending over the housings 29 and 30 and (located in the third chamber casing 42. The openings of the Opreier 44 are designed so that the jets of fluid O1 flush half of the tool, which is located in the work zopa This cooling increases (pprc serves (pa and defaults Rollers In the middle chamber 45 of a munich 01, it was an oTinyoK tempered | SLGO product (| Fig. 9) Example: It was high optically: 6p. or more mpHiMiaay; the gear wheel had the following 1M1I and one dynimy: Yummy number: mm max. , wheel material 40ХН steel, version НВ 190-210, shir on the wheels 00 mm. Installation and for the gearing of the gear wheel on the table of the contractor (the teeth of the wheel are cut with a single-hole screw with a single screw. The processing is carried out in three proods: cher1nov10y, poltistoy and finishing ones. The speed of the cutter is 60 rev / min. depth of cut 1 mm, 0.82 mm / rev. after machining (p1 in trophyl tooth cutter: for (cal € 1Cht-dvf1S1рm: К | ruyusch | Ie tools installed on the viewport so that the axial plane of the mandrel passes through the middle of the width of the gear (FIG. 5) are fed in a horizontal plane until they engage with the teeth of the wheel to be machined (Fig. 4). The tech, 1PS | Da1va from the generator with a frequency of 5000–15000 G, induces on the surface of the involute 3iy6a a – b «k. The greatest current density is observed on the BipxHioicTH avolyvants, close to the inductor, pro: Niza1B1vamy the largest magnetic flux. With sufficient electrical power (the nominal power is 50 ket), the evolvent's heating will warm up to the quenching temperature within non-dull seconds, in this case, for 4 seconds with the rotation of the I1H1Tool 15. Processed gear wheel 1. /, rotating with velocity V, moves the involute a-b, heated to a temperature of no more than 650 ° C at the ends and .1000-1100 ° C in the middle part to the position QI-b, where deforming rollers 40 come into operation, which The plastic shock deform the involute with a force P equal to 50-100 kgf. Zvolve nta, p1a13heated to a different temperature in the wheel width and, in connection with this, it is deformed with a greater degree, during rotation of the Kyles with the speed Vi, it moves to the first casing in the position a-b. At this time, the temperature of the evovent in the middle wheel decreases to 930–950 ° C. In the first chamber of the aajuha, the evolvent a – b is cooled / emitted, for example, with a water shower and its surface is hardened on marthioite. Upon further rotation of the wheel / evolvent, ab comes out of the first chamber and in the second KaiMQpe reheats, due to the heat that has penetrated into the depth of the tooth. The | surface temperature value (puffed out tempering, tempered) GRS (ve (pl. 1). To fill in the opposite tooth profile for processing, B-a-b is cooled again with a liquid in the third chamber of the casing. eons of celestial secto ry limited angles: its, a- ceiiCTOipH, a high-definition HDTV of the middle wheel to a temperature of 1000-, 1100 ° C; p, p- defarmroi sectors / with varying degrees of tooth involute with rollers; y, u tejtTO hardening ry; p, f-sectors tempering of the hardened layer; 1, –f — cooling sectors of the tooth run with liquid up to 100 ° C. For processing the teeth for one turn of the tooth and its hardness of varying hardness, along the diameter of D, it is thicker but deforming HiHiet / py. MeHTa (VEBI / ratsa from the conditions of heating the cde section of the tooth (figure 5) with different temperatures. The temperature, for example, of the butt-end of the wheel. YatcheSha si is 650 ° iC, 1 at the point s1-1С ° ° С. In SjpoiueoSeisa7kalk1i (zone, limited by the angles y, y), the following structures are formed on the utik .cde: the ends of the wheels are original, the structure ШВ-250), points с and martensite-I-ferrite (НКС-25), intermediate sections between POINT and and points ewe is martensite + troostite (HRC-50), in the middle part of the wheel, point y, is martensite (HRC-62). Napresh of the cde site (p. 5) to different temperatures | p, 31a comes about, since the induction is in the process of sibib and shrofvl tooth, most closely approaches the evolvent in point d, away from E1vol (vents at these points (Fig. 6). | P | p1i and machining of gear teeth shirovy 500. and more, and the diameter of the s; a; CAL11CH | N BDEFAR .Miruyushchegaguyu n-Astuyent SCHSHVIT.DU1VOLVN1O large, processing, there are three. height (Fig. 7), when it is at eb.m, with each mouth / new tool | 1ko, the left does one turn and the area of the pattern is not necessary Each other .-; ---: .. It should be noted that when hardening gear (Wheels with "| raw materials and koryu ends; beating it. will be much smaller than wheels, whose teeth are hardened to the full; ;: ,, ..-.-. ,,,, The most prestigious alhjab of the hardening machining of gear wheels overestimates the production of IB and IB two times, increasing the depth: in quenching (P1ave: the durability layer is up to 2 mm, which allows to use this aposob for machining, you need a heat wave to 2 mm, which allows you to use this aposob for processing h-sharpening (up to 2 mm). gear wheels. About ,, Fo) NM1ula from (bret (nor g-, ii, - I "- - -" J SSSb 1) Helpful of the patient, (heated bore cups, consisting in heating by aWi3 "tiw: fri 4,. . -surfaces of Takamma frequency with a smooth temperature change from AH 650 C teeth up to 1100 ° CIB of the middle part of the teeth, teeth deformation and cooling of the teeth while improving the speed of the teeth. prod (V10ditelno101ST1y and quality} P01chnaemoy | P | L1perechnosti, "(the forest conditionally divided into two educational areas and o6 | piai6oTiKy lead simultaneously on protivSholozhiyh portions Moles, strengthen n ra: an off, I1me1NNye side surface diametrically opposite teeth on ka (Zhdo1M portion creates SEQ-Av teLBno rshsholozhennye zoiy processing and o6pai6o TiKy tooth in each zone are HDI ieolYa1Tsii from adjacent zones, eg zu1bev wheel is carried out for the entire width of the teeth. -y -; ------ 2. Method. n .. I, errhhhhl with the fact that, in order to accelerate the technological quality of the vehicle by means of O1bakeni 1, the processing of wheels of different widths, after cooling the billet about perstanogaku and with 1ru) Mate for wheel width and the treatment to repeated SDT .- V,, is. The device for the one existing way under item I, 1co e | r1 is a tool mounted on the frame, having two cylindrical housings mounted on onpaiBiKe, defor1M1Vru1ai1, e rollers, placed on Kqppyce along the helix, and also the 1general; ale (kt | Richeaki - avant with instrumentkli, and sprayers, which is equipped with ind-uktaram, 1 is made in the form of jupiral, rigidly fixed on the body, 1pry, the outer diameter of the helix and its thickness are twist outer diameter and the thickness of the rollers deforming. 4. U1s11ROY1ST1vo according to claim 3, which is equipped with a casing for the product, mounted on the frame divided by radial steam walls on the camera. 5. The device 1 to 3, characterized in that that ov g generantara currents with frequency of frequency with th strumentach Eshshollen in the form of current collectors, working on the IB case, the inductor's working area. Sources, nff; matsyi; 1 taking into account the ashes of expertise: -.: A. Vogel. Industrial application of high currents, frequency. M.-L., "Machine building, 19b5, p. 51-: i54. $ 1. Avtar / Osh Shidetelstyo USSR L 58E853, CLTV AGN 5/102, 1977 (prototype). 3. AeTopWoe testimony of the USSR No. 570440, (cl. VZG N5 / 02 , 1976 (prototype).

l 3

Nagolo Whip

2S inductor

FIG. B

f

4} 9

Claims (4)

Fyu> rmul a izyu (bretheniya · ——? τ 1. A method of hardening the processing of teeth ..... ”of the wheels, which consists in heating the surface of the teeth with high frequency with a smooth change in temperature from 650“ C at the ends of the teeth to 1100 ° C in the middle part of the teeth, plastic tooth deformation 5; and cooling the teeth with -, rotation of the tool and the machined wheel, characterized in that, in order to increase productivity and quality of the • hardened surface, the wheel is conditionally 10 divided into two sections and the treatment is carried out simultaneously on opposite sections of the wheel, strengthening the differentiator these lateral surfaces are diametrically located; teeth, in each area create 15 consecutively located treatment zones and tooth processing in each zone is carried out with isolation from neighboring zones, and the wheel teeth are heated over the entire width of the teeth. - twenty 2. The method η π. 1, 'on the basis of the fact that, in order to expand the technolithic capabilities by providing the possibility of processing wheels of various widths, after cooling the workpiece, 25 allow the tool to be moved along the width of the wheel and the wheel treatment is repeated. '' Ϊ 3. A device for implementing the method according to π. 1, containing a tool mounted on a bed 30, having two cylindrical bodies mounted on a mandrel, deforming (rollers placed on the body along a helical line, as well as a high-frequency current generator, 35 electrically connected to the tool, and sprayers about t and h The fact is that it is equipped with an inductor (made in the form of a support, rigidly fixed to the housing, while the outer diameter is supported and 40 the thickness of its turns is less than the outer diameter and the thickness of the deforming rollers. 4. The device according to claim 3, distinguished by the fact that it is equipped with a · (housing for the product, mounted on a frame, separated by radial partitions into chambers. The ’device’ is -3, characterized in that the что aviaz of the high-frequency generator of 50 frequencies with 'pneir / smarts is made in the form of виде current collectors placed on the housing in the working area of the inductor.