CN105972093B - A kind of worm-gear type pivoting support of the opposite rotary motion of interior external tooth - Google Patents

A kind of worm-gear type pivoting support of the opposite rotary motion of interior external tooth Download PDF

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Publication number
CN105972093B
CN105972093B CN201610600565.2A CN201610600565A CN105972093B CN 105972093 B CN105972093 B CN 105972093B CN 201610600565 A CN201610600565 A CN 201610600565A CN 105972093 B CN105972093 B CN 105972093B
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China
Prior art keywords
outer ring
raceway
inner ring
centre circle
gear
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CN105972093A (en
Inventor
韩贺胜
陶兆胜
韩啸
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MAANSHAN CITY ANNT SLEWING RING Co Ltd
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MAANSHAN CITY ANNT SLEWING RING Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
    • F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
    • F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
    • F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region

Abstract

The invention discloses a kind of worm-gear type pivoting support of the interior opposite rotary motion of external tooth, belong to pivoting support technical field.The worm-gear type pivoting support of the opposite rotary motion of interior external tooth of the present invention, including outer ring, centre circle and inner ring, steel ball and spacing block are mounted in raceway between the outer ring and centre circle and between inner ring and centre circle, the outer ring gear teeth are machined with outer ring, the inner ring gear teeth are machined with inner ring, and the outer ring gear teeth use the worm-gear type gear teeth, the inner ring gear teeth are using double diametral pitch formula gear teeth；Correspondence is machined with hyperbola seal groove on faying face between the outer ring, centre circle and inner ring, and lip type sealing ring is provided with seal groove.The pivoting support of the present invention, it can meet to entertain the requirement that the industries such as machinery, light indusqtry machinery, filling machine move bi-directional rotary, it can bear larger turning torque, and the wearability of the gear teeth significantly improves, being more firmly mounted between sealing ring and pivoting support, it is not easily to fall off, it substantially prolongs its service life.

Description

A kind of worm-gear type pivoting support of the opposite rotary motion of interior external tooth
Technical field
The invention belongs to pivoting support technical field, more specifically to a kind of snail of the interior opposite rotary motion of external tooth Wheel type rotation supports.
Background technology
Pivoting support, using very extensively, is known as " joint of machine " in real industry, is needed between two articles Make opposite rotary motion, and need to bear at the same time important necessary to the machinery of the combined loads such as axial force, radial load, tilting moment Transmission parts, have the characteristics that compact-sized, stable movement, precision are high and bearing capacity is strong.Except various engineering machinery, harbour Outside equipment, metallurgical equipment, oil drilling platform, wind-power electricity generation, the application range of pivoting support is gradually extended to bottle placer Tool industry, such as amusement machinery, beverage filling machinery, drinks filling machine.
At present, traditional pivoting support equipment generally use list raceway pivoting support, the side engaged by Internal and external cycle gear Formula drives to transmit, i.e., pivoting support can have a circle band gear, inner wrap strip internal gear or outer ring band external gear, install When, no gear ring is usually fixed on to the main part of host device, allows gear ring to carry out passing power and driving is turned round.This biography The pivoting support of the wall scroll raceway of system can be only done the opposite rotary motion of one degree of freedom, when host device needs to carry out in opposite directions During rotary motion (mechanism of such as filling machine moves toward one another), requirement cannot be met using a set of pivoting support, for this Need to be driven using two sets of pivoting supports at the same time, so as to cause device structure too fat to move, and stablize during equipment use Property is relatively poor, rotating accuracy is low, it is impossible to meets requirement of the equipment to axial force, radial load and tilting moment.
Through retrieval, the patent on double raceway pivoting supports has more disclosure.
Such as, Chinese Patent Application No.：201320310649.4 the applying date：On 06 02nd, 2013, invention and created name For：A kind of double raceway pivoting supports of interior external tooth double drive, the double raceway pivoting supports of interior external tooth double drive of this application are including outer Gear ring, centre circle, ring gear, steel ball and spacing block, by section, respectively the middle Shang Quan with a semicircle groove encloses down institute to centre circle with Composition, middle Shang Quan and in lower circle interfixed with connection bolt, semicircle groove is opposite so that centre circle and ring gear, external toothing it Between formed two spherical sections cavity, steel ball is formed in this two cavitys two both ends in arc-shaped raceway, spacing block It is arranged on cavity and steel ball contact position.And for example, Chinese Patent Application No.：201220290133.3 the applying date：06 month 2012 19 Day, invention and created name is：The isometrical ball-type slewing bearing of novel double-row, this application include external toothing, centre circle, ring gear, steel Ball, spacing block, band and oil nozzle, external toothing in the sealing ditch of centre circle, ring gear and centre circle with being equipped with band；Ring gear Equal ring is furnished with steel ball between centre circle internal ring wall, between centre circle and external toothing internal ring wall, and steel ball is equipped with spacing block and band, Centre circle internal ring wall lower part is equipped with oil nozzle.Above-mentioned application case realizes the opposite of equipment by the setting of double raceway pivoting supports and returns Transhipment is dynamic, solves the problems, such as while carry out transmission using two sets of pivoting supports exist to a certain extent.
But for the use environment of many machinery field pivoting supports, generally require to bear larger tilting moment, To ensure that pivoting support gear has enough intensity and wearability and longer service life at the same time, and double raceways turn round branch It is just stringenter to honour requirements above.But since structure and Design Processing are unreasonable, the existing double raceway pivoting supports in China Transmission and bearing capacity it is limited, it is difficult to meet the demand of some more demanding use occasions, pivoting support is using process Easily break down, such as take turns odontotripsis, broken teeth, so as to cause pivoting support service life shorter, replace frequently, influencing it just Often transmission work, seriously hampers industrial production, substantially increases production cost.Simultaneously as structure design is unreasonable, China Existing double raceway pivoting supports usually improve the ability to bear of its tilting moment by increasing pivoting support size, so as to cause Installation space is larger needed for pivoting support, it is difficult to meets the limitation requirement of equipment installation scene.
In addition, existing pivoting support is typically employed on the inner ring and outer ring of pivoting support and processes a vertical section respectively and be Rectangular annular slot, the body of sealing ring are caught in above-mentioned two card slot, lower lip and outer ring or the table of inner ring of sealing ring Face is fitted close, so as to ensure its leakproofness, prevents lubricating grease is revealed and steel ball rolling channel is interior from entering other impurities.But returning During turning supporting use, sealing ring often comes off out of card slot, so as to cause pivoting support seal failure, it is normal to influence its Use, cause pivoting support service life to shorten.In order to solve the problems, such as that pivoting support sealing ring is caducous, lead in the prior art Increase its frictional force with card slot inner wall frequently with zigzag protrusion is set on sealing ring body, prevent from coming off, but use This kind of sealing structure, sealing ring can still come off out of card slot over time, so as to cause larger be difficult to pivoting support and bearing The infringement of reparation.
The content of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to the existing double raceway pivoting supports in China easily to break down in use, service life It is shorter, it is difficult to meet the demand of some more demanding use occasions, replace frequently, so as to cause production efficiency to decline, produce Cost greatly increases, and pivoting support volume is larger, takes the big deficiency of installation space, there is provided a kind of interior external tooth turns round in opposite directions The worm-gear type pivoting support of movement.The worm-gear type pivoting support of the present invention, can realize amusement machinery, light indusqtry machinery, filling Requirement of the mechanisms such as machinery to two-way opposite rotary motion, hardness, the wearability of the pivoting support gear teeth are relatively preferable, so that significantly The service life of pivoting support is extended, is conducive to cost-effective, improves production efficiency, and pivoting support compact-sized, body Smaller, the ensuring smooth transmission of product.
2. technical solution
To reach above-mentioned purpose, technical solution provided by the invention is：
A kind of worm-gear type pivoting support of interior opposite rotary motion of external tooth of the present invention, including outer ring, centre circle and inner ring, institute State and steel ball and spacing block are mounted in the raceway between outer ring and centre circle and between inner ring and centre circle, processed on the outer ring There are the outer ring gear teeth, the inner ring gear teeth are machined with inner ring, and the outer ring gear teeth use the worm-gear type gear teeth, the inner ring gear teeth are using double diametral pitch formulas The gear teeth.
Further, the tooth form of the outer ring gear teeth uses involute profile.
Further, the modulus m of the outer ring gear teeth is 2.5~10, and tooth number Z takes 90~280, tooth form pressure angle α= 20 °, it is 3 °~10 ° that modification coefficient x, which takes -0.5~+0.5, lead angle β,.
Further, the inner ring gear teeth (801) are DP2/DP1 with double diametral pitch modular representations, its parameters of structural dimension Calculate as follows：Reference diameter D0=25.4 × Z/DP2, height of teeth topHeight of teeth root Tip diameter Da=D0- 2ha, root diameter Df=D0- 2hf；Wherein, gear teeth rises coefficientGear bottom clearance system Number C*=0.25, the value range of gear teeth tooth number Z is that 50~300, x is modification coefficient.
Further, correspondence is machined with seal groove, seal groove on the faying face between the outer ring, centre circle and inner ring Sealing ring is inside installed.
Further, the sealing ring uses lip type sealing ring, on two sealing lips of the lip type sealing ring Under be symmetrical arranged.
Further, the groove profile of seal groove is processed as hyperbolic shape, and lips on the outer ring, centre circle and inner ring The shape and size of formula sealing ring match with hyperbola seal groove.
Further, the curvilinear equation x of the hyperbola seal groove2/a2-y2/b2In=1, the value range of real axis a For 5~15mm, the value range of imaginary axis b is 3~15mm.
Further, the steel ball rolling channel is processed as duplex circular ares profile race, and the contact angle between steel ball and raceway is 45 °, and between outer ring and centre circle, centre circle and inner ring after assembling, should there are fit clearance between mutual raceway and steel ball Fit clearance magnitude range is 0.10~0.30mm.
Further, oil filler point being machined with the outer ring and inner ring, oil filler point is connected with steel ball rolling channel, and Oil nozzle is installed in oil filler point.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result：
(1) the worm-gear type pivoting support of a kind of interior opposite rotary motion of external tooth of the invention, passes through outer ring, centre circle and inner ring Structure realize the opposite rotary motion of interior external tooth, its outer ring gear teeth uses the worm-gear type gear teeth, and the inner ring gear teeth are using double diametral pitch formulas The gear teeth, can either meet to require tilting moment larger by the cooperation of worm-gear type outer ring gear and double diametral pitch formula inner ring gears The requirement of bi-directional rotary movement, significantly improves the wearability and bearing capacity of pivoting support, enhances the gear teeth of pivoting support Contact strength of tooth surface, be conducive to improve pivoting support transmission efficiency and service life, greatly reduce production cost, at the same time It also ensure that the compactedness of pivoting support structure, take installation space and reduce, disclosure satisfy that to the restricted requirement of mounting structure Mechanical equipment, overcome needs just to can guarantee that it bears tilting moment ability by increasing pivoting support structure size in general technology Deficiency, greatly reduce production cost.
(2) a kind of worm-gear type pivoting support of interior opposite rotary motion of external tooth of the invention, its sealing ring use lip type Sealing ring, so as to play dual-seal protecting effect, and after the damage of one of sealing lip, another sealing lip can be after It is continuous to play the role of sealing protection, prevent the mistake of water, debris, dust raceway when entrance raceway causes pivoting support to use Effect, such as abrasion, spot corrosion, get rusty or phenomena such as clamping stagnation, substantially prolongs the service life of pivoting support.
(3) the worm-gear type pivoting support of a kind of interior opposite rotary motion of external tooth of the invention, the outer ring, centre circle and inner ring The groove profile of upper seal groove is processed as hyperbolic shape, and the size of seal groove is optimized, and hyperbola and lips The shape and size of formula sealing ring match with hyperbola seal groove, so as to significantly increase lip type sealing ring and revolution Firmly installing property between supporting, prevents sealing ring loose or dislocation during use, improves to pivoting support steel ball rolling channel Sealing protection effect, reduces the damage of pivoting support, further extends the service life of pivoting support.
(4) the worm-gear type pivoting support of a kind of interior opposite rotary motion of external tooth of the invention, reasonable in design, principle letter It is single, easy to promote the use of.
Brief description of the drawings
Fig. 1 is a kind of mounting structure schematic diagram of the worm-gear type pivoting support of interior opposite rotary motion of external tooth of the present invention；
Fig. 2 is the structure diagram of the outer ring of the present invention；
Fig. 3 is the structure diagram of the centre circle of the present invention；
Fig. 4 is the structure diagram of the inner ring of the present invention.
Label declaration in schematic diagram：1st, outer ring；101st, the outer ring gear teeth；102nd, outer ring mounting hole；103rd, in outer ring first Hole section；104th, hole section in outer ring second；2nd, oil nozzle；3rd, oil filler point；4th, sealing ring；5th, centre circle；501st, centre circle mounting hole；502nd, in Enclose first cylindrical section；503rd, cylindrical section of centre circle second；504th, hole section in centre circle first；505th, hole section in centre circle second；6th, block； 7th, taper bolt；8th, inner ring；801st, the inner ring gear teeth；802nd, inner ring mounting hole；803rd, cylindrical section of inner ring first；804th, outside inner ring second Circle section.
Embodiment
To further appreciate that present disclosure, in conjunction with drawings and examples, the present invention is described in detail.
Embodiment 1
As Figure 1-Figure 4, a kind of worm-gear type pivoting support of the present embodiment, including outer ring 1, centre circle 5 and inner ring 8, institute State in the raceway between outer ring 1 and centre circle 5 and between inner ring 8 and centre circle 5 and be mounted on steel ball and spacing block, it is achieved thereby that The bi-directional rotary movement of pivoting support.It is the side wall processing plugging hole in centre circle 5 in the present embodiment, is assembled in plugging hole and block 6, A certain number of steel balls and spacing block are installed from plugging hole, so that between centre circle 5 and outer ring 1 and between centre circle 5 and inner ring 8 It is attached, and blocks and be fixed between 6 and centre circle 5 by taper bolt 7, i.e., between outer ring 1 and centre circle 5 and inner ring 8 Each installation one blocks 6 and a taper bolt 7 between centre circle 5.The outer ring gear teeth 101 are machined with the outer ring 1 of the present embodiment, it is interior The inner ring gear teeth 801 are machined with circle 8, and the outer ring gear teeth 101 use the worm-gear type gear teeth, the inner ring gear teeth 801 are using double diametral pitch formula wheels Tooth, can either meet to require tilting moment larger by the cooperation of above-mentioned worm-gear type outer ring gear and double diametral pitch formula inner ring gears Bi-directional rotary movement requirement, significantly improve the wearability and bearing capacity of pivoting support, enhance the wheel of pivoting support The contact strength of tooth surface of tooth, is conducive to improve the transmission efficiency and service life of pivoting support, greatly reduces production cost, together When also ensure that the compactedness of pivoting support structure, take installation space and reduce, disclosure satisfy that to the restricted requirement of mounting structure Mechanical equipment, overcome needs just to can guarantee that it bears tilting moment energy by increasing pivoting support structure size in general technology The deficiency of power, greatly reduces production cost.
In the present embodiment, oil filler point 3 is machined with the outer ring 1 and inner ring 8, oil filler point 3 is connected with steel ball rolling channel It is logical, and oil nozzle 2 is installed in oil filler point 3, lubricating grease is replenished in time into steel ball rolling channel by oil nozzle 2, to steel ball rolling channel and every It is lubricated from block.The material of the outer ring 1, centre circle 5 and inner ring 8 selects 42CrMo, and outer ring installation is machined with outer ring 1 Hole 102, is machined with centre circle mounting hole 501 on centre circle 5, inner ring mounting hole 802 is machined with inner ring 8, so that pivoting support be pacified Loaded in coupled other machinery mechanism.
Embodiment 2
As shown in Figure 1, a kind of worm-gear type pivoting support of the present embodiment, including outer ring 1, centre circle 5 and inner ring 8, it is described outer Steel ball and spacing block are mounted between circle 1 and centre circle 5 and in the raceway between inner ring 8 and centre circle 5.As shown in figure 3, this reality It is to process plugging hole in the side wall of centre circle 5 to apply in example, in plugging hole assembling block 6, a certain number of steel balls are installed from plugging hole And spacing block so as to being attached between centre circle 5 and outer ring 1 and between centre circle 5 and inner ring 8, and block 6 with centre circle 5 it Between be fixed by taper bolt 7.Above-mentioned steel ball rolling channel is processed as eccentric duplex circular ares profile race, and outer ring 1 and centre circle 5, centre circle 5 After being assembled between inner ring 8, there are fit clearance, the fit clearance magnitude range between mutual raceway and steel ball to be 0.10~0.30mm, contact angle when thereby may be ensured that pivoting support operating between steel ball and raceway is always 45 °, it is ensured that rolling Road bottom is not contacted with steel ball, and stores certain lubricating grease to reduce fretting wear, advantageously ensures that the normal of pivoting support Work, extends the service life of pivoting support, and above-mentioned gap width is 0.2mm in the present embodiment.
Specifically, 1 endoporus of outer ring of the present embodiment is processed as in stepped endoporus, including outer ring first hole section 103 and outer Hole section 104 in circle second, the diameter of bore of hole section 103 is less than the diameter of bore of hole section 104 in outer ring second in outer ring first, and Hole section 103 is connected with hole section 104 in outer ring second by raceway in outer ring arc in outer ring first.Centre circle 5 in the present embodiment Cylindrical and endoporus is processed as step type, its is cylindrical including cylindrical section 503 of cylindrical section 502 of centre circle first and centre circle second, in it Hole includes hole section 505 in hole section 504 in centre circle first and centre circle second, during the outside diameter that cylindrical section 502 of centre circle first is less than Enclose second cylindrical section 503 of outside diameter, the diameter of bore of hole section 504 is more than in centre circle second in hole section 505 in centre circle first Bore dia, and between cylindrical section 503 of cylindrical section 502 of centre circle first and centre circle second, hole section 504 and centre circle second in centre circle first It is connected between interior hole section 505 by arc raceway.The Excircle machining of the inner ring 8 of the present embodiment is step type, including inner ring the One cylindrical section 803 and cylindrical section 804 of inner ring second, the outside diameter that cylindrical section 803 of inner ring first are more than cylindrical section of inner ring second 804 outside diameter, and be connected between cylindrical section 804 of cylindrical section 803 of inner ring first and inner ring second by arc raceway.
As shown in Figure 2, Figure 4 shows, the outer ring gear teeth 101 are machined with the outer ring 1, the inner ring gear teeth 801 are machined with inner ring 8, And the outer ring gear teeth 101 use the worm-gear type gear teeth, the inner ring gear teeth 801 are using double diametral pitch formula gear teeth.The outer ring gear teeth 101 in the present embodiment Tooth form use involute profile, and the modulus m of the outer ring gear teeth 101 is 2.5~10, and tooth number Z takes 90~280, tooth form pressure angle α =20 °, it is 3 °~10 ° that modification coefficient x, which takes -0.5~+0.5, lead angle β,.The double diametral pitch modular representations of the inner ring gear teeth 801 For DP2/DP1, its parameters of structural dimension calculates as follows：Reference diameter D0=25.4 × Z/DP2, height of teeth top Height of teeth rootTip diameter Da=D0- 2ha, root diameter Df=D0- 2hf；Wherein, DP1、DP2 Number range be 3~10, gear teeth rises coefficientGear tip clearance coefficient C*The value model of=0.25, modification coefficient X Enclose for -1~+1, pressure angle α is 20 °, and the value range of gear teeth tooth number Z is 50~300.The present embodiment passes through to the outer ring gear teeth 101 optimize with the structure and size of the inner ring gear teeth 801, make to realize between outer ring 1, centre circle 5 and inner ring 8 and most preferably match somebody with somebody Close, so as to significantly reduce the fully teeth height degree of gear, bending resistance, tensile strength properties when improving gear engagement, enhance tooth Stationarity, strength character and wearability during wheel engaged transmission, greatly reduce the gear tooth interference feelings that gear occurs in engagement Condition, and the broken teeth phenomenon that pivoting support occurs in use is reduced, so as to improve the quality of pivoting support, extend Its service life, disclosure satisfy that the transmission under various use environments and bearing requirements.
Corresponded on faying face in the present embodiment between outer ring 1, centre circle 5 and inner ring 8 and be machined with seal groove, in seal groove Sealing ring is installed.Wherein, the groove profile of the seal groove is processed as hyperbolic shape, and sealing ring 4 uses lip type sealing ring, double Two sealing lip settings symmetrical above and below of lip seal circle, and the shape of lip type sealing ring and size with hyperbola seal groove Matching, (groove profile of seal groove described in the present embodiment is processed as the upper wall and lower wall that hyperbolic shape refers to seal groove in Fig. 1 Hyp two are formed, i.e. the outside curve of the two of lip type sealing ring sealing lip is hyp two).The present embodiment In dual-seal protecting effect can be played by the setting of lip type sealing ring, it is another and after the damage of one of sealing lip A sealing lip can continue to play the role of sealing protection, prevent water, debris, dust etc. from entering raceway and causing pivoting support to make The failure of used time raceway, such as abrasion, spot corrosion, get rusty or phenomena such as clamping stagnation, substantially prolongs the service life of pivoting support.Together When, the sealing ring 4 of the present embodiment is installed on the installation of the inside, i.e. sealing ring 4 of faying face between outer ring 1, centre circle 5 and inner ring 8 Position is less than the height of outer ring 1, centre circle 5 and inner ring 8, so as to overcome during existing pivoting support use due to sealing ring 4 are constantly exposed to the deficiency that outside is easily damaged, and further increase the sealing performance of sealing ring 4, extend revolution branch The service life held.The mounting plane of outer ring 1, centre circle 5 and inner ring 8 can also be designed as needed by using above-mentioned design For the structure of no difference in height, the knot that outer ring 1, centre circle 5 and inner ring 8 must be processed as in the prior art there are difference in height is avoided Structure in order to sealing ring 4 install the problem of, so as to reduce pivoting support along its axial occupied space, structure is more stepped up Gather, and substantially increase the uniformity of pivoting support stress and the bearing capacity of pivoting support.
By the way that the groove profile of seal groove is processed as hyperbolic shape, and the shape and ruler of lip type sealing ring in the present embodiment It is very little to match with hyperbola seal groove, so as to significantly improve installed between lip type sealing ring and pivoting support it is firm Property, loose or dislocation occurs for sealing ring 4 during preventing use, and then improves the sealing protection effect to pivoting support steel ball rolling channel Fruit, reduces the damage of pivoting support, is conducive to extend the service life of pivoting support.The curve side of above-mentioned hyperbola seal groove Journey is x2/a2-y2/b2=1, inventor optimizes the geomery of hyperbola seal groove by many experiments, finally Have been surprisingly found that when the value range of imaginary axis b is 3~15mm, sealing ring 4 is with turning round branch when the value range of real axis a is 5~15mm Being firmly combined with property between holding is best, and during pivoting support use, due to sealing ring 4 be installed on outer ring 1, centre circle 5 and The inside of faying face between inner ring 8, two sealing lips of lip type sealing ring respectively with corresponding outer ring 1, centre circle 5 and inner ring 8 Side wall be pressed against each other, so as to ensure fitting closely for above-mentioned sealing lip and outer ring 1, centre circle 5 and 8 side wall of inner ring, further improve The sealing effect of sealing ring 4 and its fastness with pivoting support installation.In addition, two sealings of the lip type sealing ring Gap between lip is stored with certain lubricating grease, on the one hand steel ball rolling channel can be carried out lubricating grease, the opposing party is replenished in time Face can ensure there are certain pressure by the effect of the pressure further to promote between two sealing lips of lip type sealing ring The tight ness rating being bonded into sealing lip with outer ring 1, centre circle 5 and 8 side wall of inner ring, ensure that what sealing ring 4 was combined with pivoting support Fastness.On the basis of firmly installing property is ensured, using the present embodiment seal groove relative to existing pivoting support sealing Slot structure, significantly reduce seal groove depth and production and processing in cost.
In the present embodiment, oil filler point 3 is machined with the outer ring 1 and inner ring 8, oil filler point 3 is connected with steel ball rolling channel It is logical, and oil nozzle 2 is installed in oil filler point 3, lubricating grease is replenished in time into steel ball rolling channel by oil nozzle 2, to steel ball rolling channel and every It is lubricated from block.The material of the outer ring 1, centre circle 5 and inner ring 8 selects 42CrMo, and outer ring installation is machined with outer ring 1 Hole 102, is machined with centre circle mounting hole 501 on centre circle 5, inner ring mounting hole 802 is machined with inner ring 8, thus to pivoting support into Row installation is fixed.
In conclusion using the pivoting support for the method processing for being originally embodiment, larger axial force, radial direction can be born Power and tilting moment, can not only meet that entertaining machinery, light indusqtry machinery, tinning machinery etc. has bi-directional rotary kinetic characteristic Machinery industry pivoting support, meanwhile, the wearability of wheel tooth position significantly improves, the inside installation connection mode of sealing ring Seem more firm, not easily to fall off and damage so that the sealing performance of pivoting support is strengthened, and the above cooperates, Collective effect, so that the application range of gained pivoting support expands, performance and quality are lifted at the same time, and then make its use Service life is extended.
Embodiment 3
The structure of the worm-gear type pivoting support of the present embodiment is specifically included with embodiment 2, the processing method of the pivoting support Following steps：
A, the technological process of outer ring 1 is：Rough turn-half smart car-heat treatment (raceway quenching)-smart car-gear hobbing (snail Take turns gear hobbing)-line-drilling-car mill, the specific process of wherein each operation is as follows：
First, it is rough turn
1st, using annular blank to process raw material, a relatively flat plane is selected as roughing standard, 1 endoporus of clamping outer ring, Process the height dimension that another plane to technological requirement is worked into；Again with machined surface as smart benchmark, after turning over clamping, processing The height dimension that undressed plane to technological requirement is worked into.Plane machining surplus is 2~4mm, and processing tolerance is -0.5 ~+0.5mm.
2nd, after the plane machining of outer ring 1 is complete, 1 endoporus of clamping outer ring, school circle is cylindrical, and school circle franchise is not more than 0.1mm, school circle The cylindrical outside diameter size being worked into technological requirement in post-processing outer ring 1；After Excircle machining is complete, clamping is cylindrical and school is justified, school Circle franchise is not more than 0.1mm, the diameter of bore size that 1 endoporus to technological requirement of school circle post-processing outer ring is worked into.Outside outer ring 1 Circle, diameter of bore allowance scope are 2~5mm, and processing tolerance is -0.8~+0.8mm.
2nd, half smart car
Mounting surface of the plane as outer ring 1 is selected, and using the plane as datum plane, school circle 1 endoporus of outer ring, school circle Franchise is not more than 0.1mm, and clamping outer ring 1 is cylindrical after the completion of the circle of school, and the circular arc of outer ring 1 is processed by numerical programming processing program Interior roller path structure size.
According to 1 structure size of outer ring marked in drawing, principal parameter need to be inputted in a program：Outer ring actual height H1, work Skill requires raceway central diameter D01 in the circular arc of pairing, the high H01 in steel ball center of technological requirement processing, technological requirement to process Raceway radius R1, the endoporus major part of technological requirement processing are (as shown in Fig. 2, be raceway in 1 circular arc of outer ring in the present embodiment in circular arc The corresponding endoporus one end in top, be outer ring first in hole section 103) diameter d1 and technological requirement processing endoporus microcephaly (such as Fig. 2 Shown, corresponding endoporus one end below raceway in 1 circular arc of outer ring, is hole section 104 in outer ring second) diameter d2 etc..In steel ball The high vertical range i.e. between the centre of sphere and mounting surface of steel ball of the heart.
During specific processing, according to 1 diameter of outer ring, the present embodiment selection lathe rotating speed V=60r/min, feed F= 16mm/min；Raceway central diameter stays mill surplus a=1.2mm in 1 circular arc of outer ring.After raceway processes in 1 circular arc of outer ring, with oil Groove knife raceway junction in upper and lower circular arc processes raceway oil groove, and the width of raceway oil groove is the 1/4 of steel ball size, depth 3mm。
3rd, heat treatment (raceway face quenching, tempering)
1st, clamping outer ring 1 is cylindrical on raceway quenching press, according to the size of raceway in 1 circular arc of outer ring, selects dedicated rolling Road surface hardening inductor, surface continuity quenching, quenching inducer are carried out using Medium frequency induction to raceway in the circular arc of outer ring 1 Power be 47KW, quenching IF frequency is 2500Hz, and control outer ring 1 is rotated during Quench heating, consequently facilitating right Raceway carries out continuous quenching in 1 circular arc of outer ring.
In order to ensure the quenching effect of raceway in 1 circular arc of outer ring and its performance after quenching, as rolled in 1 circular arc of outer ring The case hardness requirement in road reaches HRC55~62, and the effective depth requirement of quench-hardened case reaches 4~6mm, and soft ribbons width is not more than 25 ~50mm, it is 210mm/min that the present embodiment, which controls 1 rotating linear velocity of outer ring, and inductor and raceway face in 1 circular arc of outer ring Between spacing be 1mm.Hardening media in the present embodiment selects the model that Nanjing Kerun Lubricants Co., Ltd. produces The water-soluble quenching medium of KR6480, the mass percent concentration after aqueous solvent dilutes are 4%.It is specifically, outer by controlling Circle 11 raceway face of rotary speed and inductor and outer ring between spacing can effectively control sensor to 1 raceway table of outer ring The heating time in face and hardening heat.When 1 rotary speed of outer ring is too fast or when inductor and excessive 1 raceway face spacing of outer ring is easy Heating time is inadequate when causing the quenching of outer ring 1 raceway face or temperature is too low, its structural constituent cannot all change, tissue Performance cannot reach requirement, so as to cause the hardness deficiency of 1 raceway face of outer ring；And when 1 rotary speed of outer ring is excessively slow or sensing When device and 1 raceway face spacing of outer ring are too small, heating time is long when causing outer ring 1 raceway face quenching or temperature is excessive, Easily there is superheating phenomenon in 1 raceway face of outer ring, so as to cause 1 raceway face insufficient strength of outer ring, toughness declines, and is also easy to produce and splits Line, even occurs the situation of burning when overheating serious, cause 1 raceway face of outer ring to occur burning hole, cause outer ring 1 to will be unable to make With.After raceway face completes quenching in 1 circular arc of outer ring, it is air-cooled 4 it is small when, be sent into tempering box stove, select 200 DEG C of temperature progress low temperature Tempering, tempering time for 3 it is small when, come out of the stove after being tempered, and it is air-cooled 8 it is small when after could carry out the processing of next procedure.
The present embodiment coordinates specific heat treatment process by selecting suitable hardening media species, so as to protect Card with stable cooling characteristics, harden uniformly, and can reduce the deformation of workpiece, goes out after preventing workpiece quenching by when workpiece quenching Existing crackle, further ensures the quenching effect of 1 raceway of outer ring, is conducive to improve its performance and extends making for pivoting support Use the service life.In addition, inventor warp experimental studies have found that, how much the concentration of hardening media directly affects cooling velocity when quenching Speed, and then influence the quality and performance of pivoting support.If cooling velocity is excessively slow, easily lead to workpiece surface hardness deficiency, It is uneven, it is easy to wear to find expression in raceway face and gear position when pivoting support uses；If cooling velocity is too fast, easily lead to Occur fine cracks, or even cracking after hard heat treatment, find expression in the peeling of raceway face and gear when pivoting support uses Broken teeth, and these above-mentioned defects phenomenon that to be all pivoting support product do not allow in process of manufacture occurs.Inventor is led to Cross lot of experiments and practical operation is found, in the range of by the concentration dilution of the hardening media of the present embodiment for 4~5% When, the deflection of workpiece can be efficiently controlled, the cracking of workpiece is reduced, avoids the generation of quenching soft spot, workpiece hardens uniformly, So as to improve the quality and service life of pivoting support product.
4th, smart car
1st, non-mounting surface is processed using mounting surface as benchmark, turns over and processes mounting surface using non-mounting surface as benchmark again, The symmetrical plane of non-mounting surface, that is, mounting surface mentioned here.When processing mounting surface with non-mounting surface, it is desirable to control outer ring 1 Individual pen height and steel ball center are high, reach the size of technological requirement processing.
2nd, after plane machining is complete, using non-mounting surface as datum plane, cylindrical school circle is carried out, school circle franchise is not more than 0.05mm, clamping endoporus after school is justified, the outside diameter size that processing excircles to technological requirement are processed；Using process it is cylindrical as Benchmark school is justified, and school circle franchise be not more than 0.05mm, and clamping is cylindrical after school is justified, and processes what the major part of endoporus was worked into technological requirement Diameter of bore.
3rd, after the diameter at butt end for processing 1 endoporus of outer ring, the structure of 1 inner seal groove of outer ring is processed, wherein, root According to the size dimension of selected sealing ring in product design, the Working position of seal groove is determined, Working position scale error ± 0.2mm, the width 2.5mm of seal groove, the depth 4mm of seal groove, so as to be further ensured that sealing ring 4 and pivoting support With reference to fastness, prevent to come off, influence the service life of pivoting support.
5th, worm-gear toothing processing (worm gear hobbing)
1st, selecting 1 mounting surface of outer ring, school circle outer ring 1 is cylindrical, and school circle franchise is not more than 0.05mm, school circle as datum plane 1 endoporus of clamping outer ring on gear-hobbing machine afterwards；After 1 clamping of outer ring is complete, the worm gear hob cutter of selection and the pairing of 1 worm gear parameter of outer ring And installed.When worm gear hob is installed, the center and outer ring worm gear generant circle of gorge (i.e. outer ring of worm gear hob knife bar need to be adjusted Circular arc on periphery) center alignment, complete worm gear hob to knife work so that ensure the outer ring gear teeth 101 plus Work performance.
2nd, after Cutting tool installation manner is complete, according to the number of teeth of worm gear, to match the divided teeth gear of gear-hobbing machine, the follow-up rolling for carrying out worm gear Tooth is processed, and obtains the worm-gear type gear teeth.During processing, the depth of cut is related with the common normal that worm gear to be processed, Δ L=Δ W/ (2*sin α)。
In formula：The Δ L- depths of cut, Δ W- common normal allowance, α-pressure angle, at this time we define k=1/ (2*sin α) For feed coefficient, pressure angle α=20 ° of the present embodiment, k=1.462.
3rd, when the outer ring gear teeth 101 process, outer ring 1 need to carry out the worm-gear type gear teeth after getting off chamfering, repair the processing such as burr Technique.
6th, rule
1st, on numerical control marking lathe, establishment line program, the installation center carpenters square cun of input outer ring mounting hole 102, outside Enclose the angular values between mounting hole 102；
2nd, when ruling, 6 positions that symmetrical decile two-by-two need to be carried out with dial gauge carry out endoporus school circle, school circle franchise No more than 0.05mm, so as to ensure that the accuracy of its endoporus school circle.
3rd, after school circle is qualified, clamping is cylindrical.Situation about being distributed according to outer ring mounting hole 102, raceway in outer ring arc Quenching soft ribbons position is placed between two mounting holes of outer ring 1, and confirms the start position of line, i.e., the position of one mounting hole Put.After confirming starting point, operation numerical control marking program carries out line processing on mounting surface, finally with 360 ° of recurrence start positions.
7th, drill
1st, according to the position of line, the brill processing of outer ring mounting hole 102 is carried out on drilling machine, from mounting surface toward non-mounting surface It is processed；
2nd, according to the size of outer ring mounting hole 102, specification, fluted drill, the screw tap needed is selected, processes the outer ring peace of qualification Fill hole 102, the present embodiment fluted drill selection 50r/min, screw tap selection 120r/min.
3rd, according to the specification size of oil filler point in the drawing of outer ring and position, corresponding fluted drill processing oil filler point 3 is selected Bottom outlet, selects the screw thread of corresponding tap tapping oil filler point.
8th, car is ground
1st, mounting surface is selected to carry out endoporus diameter at butt end school circle, school circle franchise is not more than 0.05mm as datum plane.School Clamping outer ring 1 is cylindrical after circle is qualified.
2nd, when to be processed, according to the design of drawing, raceway central diameter in the circular arc that need to be processed is inputted in numerical control program D0, the high H0 in steel ball center, raceway radius R in circular arc；According to raceway central diameter size in the circular arc processed in half smart car process With stay mill surplus, determine the depth of cut of the processing per knife, be not more than 1mm per the knife depth of cut；It is straight according to raceway center in outer ring arc The size of footpath D0, selects the rotating speed V=100r/min of machine tool chief axis, selects feed F=12mm/min.
3rd, in process, according to pivoting support outer ring 1 in drawing and the total backlash technical requirements of centre circle 5, rationally divide Machining tolerance with raceway central diameter D0 in 1 circular arc of outer ring, easy to assemble when select suitable steel ball to carry out pre-assembled and tune The requirement of the total backlash of whole outer ring and centre circle.
4th, after machining, whether closed with the contact angle of raceway in arc raceway contact angle bevel protractor detection outer ring arc Lattice, original a=45 ° of contact angle, it is allowed to -2 °~+5 ° of error range.Described original contact angle a, that is, steel ball is in outer ring arc Angle between the line of contact point and the steel ball centre of sphere on raceway and outer ring horizontal radial direction.
B, the technological process of centre circle 5 is：Rough turn-boring, brill-half smart car-heat treatment (raceway quenching)-smart car- Line-drilling-car mill, the specific process of wherein each operation are as follows：
First, it is rough turn
The rough turn processing of centre circle 5 is carried out using annular blank to process raw material, its specific processing is with reference to 1 rough turn technique of outer ring.
2nd, boring, brill
1st, as shown in figure 3, according to Design Requirement Drawing, the fluted drill of selection corresponding specification size, using boring machine in centre circle 5 Two opposite flanks process plugging hole T1, plugging hole T2 respectively, wherein, plugging hole T1 be used for steel ball between outer ring 1 and centre circle 5, The assembling of spacing block；Plugging hole T2 is used for the assembling of steel ball, spacing block between centre circle 5 and inner ring 8.Plugging hole T1, T2 select base Hole prepares conjunction, and it is H8 to select fit tolerance accuracy class, and the position between plugging hole T1 and plugging hole T2 presses 180 ° or so pairs Claim distribution.
2nd, after plugging hole processes, corresponding blocking 6 is assembled, taper can be processed according to the structure size of pivoting support For 1:The circular cone pin hole of the different-diameters such as 50 φ 3, φ 5, φ 10, and select corresponding taper bolt 7, in component location guide taper pin-hole with Just being fastenedly connected between 6 and plugging hole is blocked.
3rd, half smart car
1st, mounting surface of the plane as centre circle 5 is selected, and using the plane as datum plane, school circle centre circle 5 is cylindrical, school Circle franchise be not more than 0.1mm, 5 endoporus of clamping centre circle after the completion of school is justified, and numerical programming processing program is processed outside the circular arc of centre circle 5 Roller path structure size.
According to 5 structure size of centre circle marked in drawing, principal parameter need to be inputted in a program：Centre circle actual height H2, work Skill requires the outer raceway central diameter D02 of the circular arc of pairing, the high H02 in outer raceway steel ball center of technological requirement processing, technological requirement The outer raceway radius R2 of the circular arc of processing, the cylindrical major part of technological requirement processing are (as shown in figure 3,5 circular arc of the present embodiment middle finger centre circle Cylindrical one end below outer raceway, i.e. cylindrical section of centre circle second cylindrical microcephaly's (this reality that 503) diameter d3 and technological requirement are processed Cylindrical one end above the outer raceway of 5 circular arc of middle finger centre circle is applied, i.e., 502) diameter d4 etc., steel ball center are high for cylindrical section of centre circle first Vertical range i.e. between the centre of sphere and mounting surface of steel ball.
During specific processing, according to 5 diameter of centre circle, lathe rotating speed V=60/min, feed F=16mm/min are selected； The outer raceway central diameter of circular arc need to stay mill surplus a=0.6mm.After the outer raceway of 5 circular arc of centre circle processes, with oil groove knife it is upper, The outer raceway junction processing raceway oil groove of lower circular arc, oil groove width is the 1/4 of steel ball size, depth 3mm.
2nd, the mounting surface of centre circle 5 is selected to be not more than 0.1mm, school circle as datum plane, school circle centre circle endoporus, school circle franchise After the completion of clamping centre circle it is cylindrical, numerical programming processing program processes roller path structure size in the circular arc of centre circle 5.
According to the centre circle structure size marked in drawing, principal parameter need to be inputted in a program：Centre circle actual height H2, technique It is required that raceway central diameter D03, the high H03 in interior raceway steel ball center of technological requirement processing, technological requirement add in the circular arc of pairing Raceway radius R3 in the circular arc of work, technological requirement processing endoporus major part (endoporus one end in 5 circular arc of centre circle below raceway, i.e., Hole section 505 in centre circle second) diameter d5 and technological requirement processing the endoporus microcephaly (endoporus one in 5 circular arc of centre circle above raceway End, i.e., hole section 504 in centre circle first) diameter d6 etc..The high vertical range i.e. between the centre of sphere and mounting surface of steel ball in steel ball center.
According to centre circle diameter during processing, lathe rotating speed V=60r/min, feed F=16mm/min are selected；Circular arc Interior raceway central diameter need to stay mill surplus a=0.6mm.After raceway processes in centre circle circular arc, with oil groove knife in upper and lower circular arc Interior raceway junction processes raceway oil groove, and oil groove width is the 1/4 of steel ball size, depth 3mm.
4th, it is heat-treated (raceway quenching-tempering)
1st, clamping centre circle 5 enters on raceway quenching press, according to the size of raceway outside centre circle circular arc, selects dedicated raceway face Quenching inducer, quenches raceway face outside centre circle circular arc into Line Continuity using Medium frequency induction, IF frequency 2500Hz.In When enclosing raceway face quenching outside circular arc, it is desirable to terminate since one side position of plugging hole T1 to the another side of plugging hole T1.
In order to ensure the quenching effect of raceway outside 5 circular arc of centre circle and its performance after quenching, as rolled outside centre circle circular arc The case hardness requirement in road reaches HRC55~62, and the effective depth requirement of quench-hardened case reaches 4~6mm, and soft ribbons width is no more than stifled The diameter of consent T1 adds 20~35mm, and control arc raceway Surface heat-treatent parameter is as follows：Power 47KW, centre circle rotary speed The distance between the outer raceway of 140mm/min, inductor and centre circle circular arc 1.5mm, hardening media and 1 raceway hardening media phase of outer ring Together, its concentration is 4%.
2nd, after the outer raceway face of centre circle circular arc has quenched, it is air-cooled 3 it is small when, clamping centre circle 5 enters on raceway quenching press, in The size of raceway in circular arc is enclosed, dedicated raceway face quenching inducer is selected, using Medium frequency induction to raceway in centre circle circular arc Surface is quenched into Line Continuity, IF frequency 2500Hz.When raceway face quenches in centre circle circular arc, it is desirable to from plugging hole T2's One end position starts to the other end to terminate, its quenching process parameters is controlled with raceway quenching technical outside centre circle circular arc.5 circular arc of centre circle After inside and outside raceway face quenches, it is air-cooled 4 it is small when, be sent into tempering box stove, carry out lonneal, eliminated in quenching process and produced Raw thermal stress, tempering process of the tempering process parameters with raceway in 1 circular arc of outer ring.
5th, smart car
1st, non-mounting surface is processed using mounting surface as datum plane, then is installed using non-mounting surface as datum plane to process Face.
After 2 plane machinings are complete, using non-mounting surface as datum plane, diameter at butt end carries out school circle to foreign round, and school circle franchise is not More than 0.05mm, clamping endoporus after the circle of school, the diameter at butt end size that major part to the technological requirements of processing excircles is worked into；Process After cylindrical diameter at butt end, seal groove size is processed.According to the size dimension of selected sealing ring in product design, sealing is determined The Working position of groove, Working position scale error ± 0.2mm, the width 2.5mm of seal groove, the depth 4mm of seal groove.
6th, rule
1st, on numerical control marking lathe, establishment line program, the installation center carpenters square cun of input centre circle mounting hole 501, in Enclose the angular values between mounting hole 501.
2nd, when ruling, 6 positions that symmetrical decile two-by-two need to be carried out with dial gauge carry out cylindrical school circle, school circle franchise No more than 0.05mm.
3rd, after school circle is qualified, clamping endoporus.Situation about being distributed according to centre circle mounting hole 501, runs numerical control marking program, On mounting surface since being blocked hole site rule processing, finally with 360 ° return block hole sites.
7th, drill
After line, Drilling operation is carried out to centre circle 5, the processing technology of centre circle mounting hole 501 is the same as outer ring mounting hole 102。
8th, car is ground
1st, the non-mounting surface of selection carries out school circle as datum plane, to foreign round diameter at butt end, and school circle franchise is not more than 0.05mm.Clamping centre circle endoporus after school circle is qualified.
When to be processed, according to the design of drawing, raceway central diameter outside the circular arc that need to be processed is inputted in numerical control program The outer raceway radius R2 of D02, the high H02 in steel ball center, circular arc；According to raceway central diameter ruler outside the circular arc processed in half smart car process It is very little and stay mill surplus, determine the depth of cut of the processing per knife, be not more than 1mm per the knife depth of cut；According to raceway center outside centre circle circular arc The size of diameter D02, selects the rotating speed V=100r/min of machine tool chief axis, selects feed F=12mm/min.
In process, according to pivoting support outer ring 1 in drawing and the total backlash technical requirements of centre circle 5, reasonable distribution The machining tolerance of the outer raceway central diameter D02 of centre circle circular arc, easy to assemble when, select suitable steel ball to carry out pre-assembled and adjustment The requirement of the total backlash of outer ring and centre circle.
After machining, whether the contact angle with raceway outside arc raceway contact angle bevel protractor detection centre circle circular arc is qualified, Original a=45 ° of contact angle, it is allowed to -2 °~+5 ° of error range.Described original contact angle a, that is, steel ball raceway outside centre circle circular arc On contact point and the line of the steel ball centre of sphere and centre circle horizontal radial direction between angle.
2nd, non-mounting surface is selected to carry out school circle to endoporus diameter at butt end, school circle franchise is not more than as datum plane 0.05mm.Clamping centre circle is cylindrical after school circle is qualified.
When to be processed, according to the design of drawing, raceway central diameter in the circular arc that need to be processed is inputted in numerical control program D03, the high H03 in steel ball center, raceway radius R3 in circular arc；According to raceway central diameter ruler in the circular arc processed in half smart car process It is very little and stay mill surplus, determine the depth of cut of the processing per knife, be not more than 1mm per the knife depth of cut；According to raceway center in centre circle circular arc The size of diameter D03, selects the rotating speed V=100r/min of machine tool chief axis, selects feed F=12mm/min.
In process, according to the total backlash technical requirements of pivoting support inner ring in drawing and centre circle, in reasonable distribution The machining tolerance of raceway central diameter D03 in circular arc is enclosed, easy to assemble when selects suitable steel ball to carry out in pre-assembled and adjustment The total backlash requirement of circle and centre circle.
After machining, whether the contact angle with raceway in arc raceway contact angle bevel protractor detection centre circle circular arc is qualified, Original a=45 ° of contact angle, it is allowed to -2 °~+5 ° of error range.Described original contact angle a, that is, steel ball raceway in centre circle circular arc On contact point and the line of the steel ball centre of sphere and centre circle horizontal radial direction between angle.
C, inner ring manufacturing procedure：Rough turn-half smart car-smart car I-gear shaping (gear gear shaping)-heat treatment (raceway quenching, Gear quenching, tempering)-smart car II-line-drillings-car mill, the specific process of wherein each operation is：
First, it is rough turn
Rough turn processing of the rough turn processing technology of inner ring 8 with reference to outer ring 1.
2nd, half smart car
1st, mounting surface of the plane as inner ring 8 is selected, and using the plane as datum plane, school circle inner ring 8 is cylindrical, school Circle franchise is not more than 0.1mm, 8 endoporus of clamping inner ring after the completion of school is justified, and the circular arc of numerical programming processing program processing inner ring 8 rolls outside Road structure size.
2nd, according to 8 structure size of inner ring marked in drawing, principal parameter need to be inputted in a program：Inner ring actual height H1, The outer raceway central diameter D04 of circular arc of technological requirement pairing, the high H04 in steel ball center of technological requirement processing, technological requirement processing The outer raceway radius R4 of circular arc, cylindrical major part (cylindrical one end above the outer raceway of inner ring circular arc, i.e. inner ring of technological requirement processing First cylindrical section 803) diameter d7 and the cylindrical microcephaly of technological requirement processing (cylindrical one end below the outer raceway of inner ring circular arc, i.e., Cylindrical section of inner ring second 804) diameter d8 etc..During processing, according to 8 diameter of inner ring, lathe rotating speed V=60r/min is selected, is walked Knife amount F=16mm/min；The outer raceway central diameter of circular arc need to stay mill surplus a=0.6mm.
3rd, after the outer raceway of 8 circular arc of inner ring processes, with oil groove knife, raceway junction processing raceway is oily outside upper and lower circular arc Groove, oil groove width are the 1/4 of steel ball size, depth 3mm.
3rd, smart car I
Non- mounting surface is processed using mounting surface as datum plane, turns over and processes peace using non-mounting surface as datum plane again Dress face；After plane machining is complete, using non-mounting surface as datum plane, endoporus school circle is carried out, school circle franchise is not more than 0.05mm, school Clamping is cylindrical after circle, processes diameter of bore and there are other inner hole structure sizes, such as the endoporus step of 8 mounting surface one end of inner ring Diameter.
4th, gear shaping (gear gear shaping)
Corresponding toothed disc slotting tool tool is selected according to the gear parameter of inner ring 8, matches the divided teeth gear of gear shapping machine, and install Disk slotting tool has.Selecting inner ring mounting surface, school circle 8 endoporus of inner ring, school circle franchise is not more than 0.05mm, after school is justified as datum plane Clamping inner ring 8 is cylindrical, after completing clamping, carries out working knife for toothed disc slotting tool tool, subsequently carries out the Gear Shaping of gear, i.e., Process double diametral pitch formula gear teeth of inner ring 8.During processing, the depth of cut is related with the common normal that gear to be processed, Δ L=Δ W/ (2* Sin α), in formula：The Δ L- depths of cut, Δ W- common normal allowance, α-pressure angle, after gear Gear Shaping is complete, gear tooth It need to carry out chamfering, repair the processing technologys such as burr.
5th, it is heat-treated (raceway quenching, gear quenching, tempering)
1st, the quenching of the outer raceway of 8 circular arc of inner ring：The quenching technical of the outer raceway of 8 circular arc of inner ring is with reference to raceway in 1 circular arc of outer ring Quenching technical.
2nd, after the outer raceway face of 8 circular arc of inner ring has quenched, it is air-cooled 4 it is small when, clamping inner ring 8 enters on Gear Quenching Equipment, according to The size of inner ring module, selects dedicated gear surface quenching inducer, using Medium frequency induction to 8 gear tooth table of inner ring Face carries out quenching treatment, and inductor power 55KW, quenching IF frequency is 2500Hz, and inner ring 8 is fixed during Quench heating Motionless, quenching inducer is moved, in order to ensure that it is practical that the hardness of 8 gear teeth of inner ring, wearability and break resistance etc. meet It is required that the linear velocity of control sensor movement is 290mm/min, the distance between inductor and gear tooth surface 3.5mm, quench Fiery concentration of medium 4%.Further, since taking turns, space width is smaller easily to occur secondary quenching in quenching process, and there are thermal stress, production Change shape, and therefore, the present embodiment is separated by the technique of quenching using monodentate, i.e. one tooth of a tooth is quenched, a tooth quenching After the completion of the tooth at interval is quenched again, so as to ensure the bearing capacity of pivoting support.
3rd, after inner ring circular arc outer raceway, the surface hardening of gear position, temper is carried out, temper technological parameter is the same as outer Enclose raceway tempering process in 1 circular arc.
6th, smart car II
Smart car technique of the smart car II techniques of inner ring 8 with centre circle 5.
7th, rule, drill, car mill
After smart car II process finishings, rule, drilled to inner ring 8, car mill processing, its concrete technology is with reference to outer ring 1 Line, drilling, car grinding process.
D, assemble
1st, lift outer ring 1, centre circle 5 and 8 level of inner ring to be put on assembly bench, according to technical requirements outer ring 1 in drawing with Total backlash value between circle 5, inner ring 8 and centre circle 5, is rolled according to the circular arc matched between outer ring 1 and centre circle 5, inner ring 8 and centre circle 5 Road diameter, selects rational steel ball size size, carries out assembly process.
2nd, due to being sealed into inner sealing between outer ring 1 and centre circle 5, sealing ring 4 need to first be assembled, then from centre circle The plugging hole T1 assembling steel balls and spacing block processed on 5, connection outer ring 1 and centre circle 5.Steel ball and the quantity of spacing block assemblingIn formula：D0 --- the arc raceway central diameter between outer ring and centre circle, d0 --- steel ball size, b --- isolation Block thickness, the steel ball number n of calculating press result of calculation rounding, the numerical value after decimal point, can use adjustment spacing block with dehorn standard every The gap between steel ball and spacing block is eliminated from block.
After steel ball and spacing block between outer ring 1 and centre circle 5 have assembled, lubricating grease can be injected from plugging hole T1, lubricate steel Rolling connection between ball and raceway；Corresponding blocking is assembled in plugging hole T1 after having noted lubricating grease, and is fixed with taper bolt 7 6 are blocked, prevents steel ball and spacing block from dropping from plugging hole.
3rd, after outer ring 1 has been assembled with centre circle 5, the sealing ring 4 between inner ring 8 and centre circle 5 is first assembled, then from centre circle 5 The plugging hole T2 assembling steel balls and spacing block of processing, connection inner ring 8 and centre circle 5.Steel ball and the quantity of spacing block assemblingIn formula：D0 --- the arc raceway central diameter between inner ring and centre circle, d0 --- steel ball size, b --- isolation Block thickness, the steel ball number n of calculating press result of calculation rounding, the numerical value after decimal point, can use adjustment spacing block with dehorn standard every The gap between steel ball and spacing block is eliminated from block.
After steel ball and spacing block between inner ring 8 and centre circle 5 have assembled, lubricating grease can be injected from plugging hole T2, lubricate steel Rolling connection between ball and raceway；Corresponding blocking 6 is assembled in plugging hole T2 after having noted lubricating grease, and it is solid with taper bolt 7 It is fixed to block, prevent steel ball and spacing block from dropping from plugging hole.
4th, after having been assembled with centre circle 5 after outer ring 1 and centre circle 5, inner ring 8, the oil nozzle of corresponding model is assembled at oil filler point 3 2, and product surface smears one layer of antirust oil, prevents product surface oxidisation during placement, causes the damage of product.
5th, final product after the assay was approved, packs product warehousing.
The present embodiment is by the process for machining parameter to outer ring 1, centre circle 5 and inner ring 8, machine when such as half smart car and car are ground Bed rotating speed, feed etc. optimize, and so as to significantly improve the machining accuracy of pivoting support, ensure between each circle Assembly precision, reduces stress concentration and the deformation of each circle and the inside and outside gear teeth in process, and then ensure that making for pivoting support With performance, be conducive to extend its service life.Meanwhile inventor also encloses raceway and inside and outside wheel by lot of experiments to each The heat treatment process of tooth optimizes, and thereby may be ensured that the performances such as hardness, the wearability of pivoting support meet severe ring Requirement under border, reduces the stress deformation of each circle and the inside and outside gear teeth.In addition, inventor passes through many experiments, final choice The water-soluble quenching medium of the present embodiment, and the concentration of hardening media is optimized, so as to further ensure revolution The performance of supporting, and from improving product quality, improve working conditions, keep the safety in production and energy saving angle, the present invention Hardening media used is best selection.
Embodiment 4
The processing method of the worm-gear type pivoting support of the present embodiment comprises the following steps：
A, the technological process of outer ring 1 is：Rough turn-half smart car-heat treatment (raceway quenching)-smart car-gear hobbing (snail Take turns gear hobbing)-line-drilling-car mill, the specific process of wherein each operation is as follows：
First, it is rough turn
The rough turn processing technology of outer ring 1 is the same as embodiment 3 in the present embodiment.
2nd, half smart car
Half finishing processing technique of outer ring 1 is substantially with embodiment 3 in the present embodiment, its difference lies in：The present embodiment selects Lathe rotating speed V=16r/min, feed F=36mm/min；Raceway central diameter stays mill surplus a=0.6mm in 1 circular arc of outer ring. After raceway processes in 1 circular arc of outer ring, with oil groove knife, raceway junction processes raceway oil groove, raceway oil groove in upper and lower circular arc Width be steel ball size 1/4, depth 2mm.
3rd, heat treatment (raceway face quenching, tempering)
The heat treatment process operation of outer ring 1 is substantially with embodiment 3 in the present embodiment, its difference lies in：Quenching inducer Power is 55KW, and quenching IF frequency is 8000Hz, and the linear velocity for controlling outer ring 1 to move be 140mm/min, and inductor and Spacing in 1 circular arc of outer ring between raceway face is 1.5mm, and the hardening media of the present embodiment is the same as embodiment 3, its mass percent Concentration is 5% after water dilutes.In 1 circular arc of outer ring raceway face complete quenching after, it is air-cooled 6 it is small when, be sent into tempering box stove, selection 180 DEG C of temperature progress lonneals, tempering time for 4 it is small when, come out of the stove after being tempered, and it is air-cooled 6 it is small when after could carry out lower road The processing of process
4th, smart car
The smart car technique of outer ring 1 is essentially consisted in embodiment 3, its difference substantially in the present embodiment：Sealed in the present embodiment The width 5mm of groove, the depth 6mm of seal groove.
5th, worm-gear toothing processing (worm gear hobbing)
The worm-gear toothing processing technology of outer ring 1 is the same as embodiment 3 in the present embodiment.
6th, rule
The line technique of outer ring 1 is the same as embodiment 3 in the present embodiment.
7th, drilling, car mill
The drilling of outer ring 1, car grinding process are essentially consisted in embodiment 3, its difference substantially in the present embodiment：In the present embodiment Fluted drill selection of speed 140r/min used in drilling, screw tap selection 60r/min, select the rotating speed V=of machine tool chief axis when car is ground 20r/min, selects feed F=36mm/min.
B, the technological process of centre circle 5 is：Rough turn-boring, brill-half smart car-heat treatment (raceway quenching)-smart car- Line-drilling-car mill, the specific process of wherein each operation are as follows：
First, it is rough turn
The rough turn processing of centre circle 5 is carried out using annular blank to process raw material, its specific processing is with reference to 1 rough turn technique of outer ring.
2nd, boring, brill
The boring of centre circle 5, brill processing technology are the same as embodiment 3 in the present embodiment.
3rd, half smart car
Half finishing processing technique of centre circle 5 is substantially with embodiment 3 in the present embodiment, its difference lies in：Machine in the present embodiment Bed rotating speed V=16r/min, feed F=36mm/min, the outer raceway of circular arc and interior raceway central diameter stay mill surplus a= 1.2mm, the depth 2mm of raceway junction raceway oil groove in the outer raceway junction of the upper and lower circular arc of centre circle 5 and its upper and lower circular arc.
4th, it is heat-treated (raceway quenching-tempering)
Raceway face outside centre circle circular arc is quenched into Line Continuity using Medium frequency induction, IF frequency 8000Hz, in order to Performance after the quenching effect of the outer raceway of 5 circular arc of guarantee centre circle and its quenching, controls arc raceway Surface heat-treatent parameter It is as follows：The distance between the outer raceway of power 55KW, centre circle rotary speed 210mm/min, inductor and centre circle circular arc 1mm, quenching Concentration of medium 5%, after the outer raceway face of centre circle circular arc has quenched, it is air-cooled 5 it is small when, then using Medium frequency induction in centre circle circular arc Raceway face is quenched into Line Continuity, IF frequency 8000Hz, after the inside and outside raceway face of 5 circular arc of centre circle quenches, air-cooled 6 Hour, tempering box stove is sent into, carries out lonneal, has eliminated the thermal stress produced in quenching process, tempering process parameters are the same as outer Enclose the tempering process of raceway in 1 circular arc.
5th, smart car
The finishing processing of centre circle 5 is substantially the same as the width 5mm of embodiment 3, wherein seal groove, the depth of seal groove in the present embodiment Spend 6mm.
6th, rule
The scribing operation of centre circle 5 is the same as embodiment 3 in the present embodiment.
7th, drill
After line, Drilling operation is carried out to centre circle 5, the processing technology of centre circle mounting hole 501 is the same as outer ring mounting hole 102。
8th, car is ground
The car grinding process of centre circle 5 is substantially with embodiment 3 in the present embodiment, its difference lies in：Car mill processing in the present embodiment The rotating speed V=20r/min of middle selection machine tool chief axis, selects feed F=36mm/min.
C, inner ring manufacturing procedure：Rough turn-half smart car-smart car I-gear shaping (gear gear shaping)-heat treatment (raceway quenching, Gear quenching, tempering)-smart car II-line-drillings-car mill, the specific process of wherein each operation is：
First, it is rough turn
Rough turn processing of the rough turn processing technology of inner ring 8 with reference to outer ring 1.
2nd, half smart car
Half finishing processing technique of inner ring 8 is substantially with embodiment 3 in the present embodiment, wherein, select lathe rotating speed V=16r/ Min, feed F=36mm/min；The outer raceway central diameter of circular arc need to stay mill surplus a=1.2mm, and 8 upper and lower circular arc of inner ring The depth 2mm of outer raceway junction raceway oil groove.
3rd, smart car I
The smart car I processing technologys of inner ring 8 are the same as embodiment 3 in the present embodiment.
4th, gear shaping (gear gear shaping)
The Gear Shaping technique of inner ring 8 is the same as embodiment 3 in the present embodiment.
5th, it is heat-treated (raceway quenching, gear quenching, tempering)
1st, the quenching of the outer raceway of 8 circular arc of inner ring：The quenching technical of the outer raceway of 8 circular arc of inner ring is with reference to raceway in 1 circular arc of outer ring Quenching technical.
2nd, after the outer raceway face of 8 circular arc of inner ring has quenched, it is air-cooled 6 it is small when, clamping inner ring 8 enters on Gear Quenching Equipment, according to The size of inner ring module, selects dedicated gear surface quenching inducer, using Medium frequency induction to 8 gear tooth table of inner ring Face carries out quenching treatment, and inductor power 15KW, quenching IF frequency is 8000Hz, and inner ring 8 is fixed during Quench heating Motionless, quenching inducer is moved, in order to ensure that it is practical that the hardness of 8 gear teeth of inner ring, wearability and break resistance etc. meet It is required that the linear velocity of control sensor movement is 400mm/min, the distance between inductor and gear tooth surface 1.5mm, quench Fiery concentration of medium 5%.Further, since taking turns, space width is smaller easily to occur secondary quenching in quenching process, and there are thermal stress, production Change shape, and therefore, the present embodiment is separated by the technique of quenching using monodentate, i.e. one tooth of a tooth is quenched, a tooth quenching After the completion of the tooth at interval is quenched again, so as to ensure the bearing capacity of pivoting support.
3rd, after inner ring circular arc outer raceway, the surface hardening of gear position, temper is carried out, temper technological parameter is the same as outer Enclose raceway tempering process in 1 circular arc.
6th, smart car II
Smart car technique of the smart car II techniques of inner ring 8 with centre circle 5.
7th, rule
After smart car II process finishings, rule, drilled to inner ring 8, car mill processing, its concrete technology is with reference to outer ring 1 Line, drilling, car grinding process.
D, assemble
The assembly technology of the present embodiment is the same as embodiment 3.
Embodiment 5
The processing method of the worm-gear type pivoting support of the present embodiment comprises the following steps：
A, the technological process of outer ring 1 is：Rough turn-half smart car-heat treatment (raceway quenching)-smart car-gear hobbing (snail Take turns gear hobbing)-line-drilling-car mill, the specific process of wherein each operation is as follows：
First, it is rough turn
The rough turn processing technology of outer ring 1 is the same as embodiment 3 in the present embodiment.
2nd, half smart car
Half finishing processing technique of outer ring 1 is substantially with embodiment 3 in the present embodiment, its difference lies in：The present embodiment selects Lathe rotating speed V=35r/min, feed F=25mm/min；Raceway central diameter stays mill surplus a=0.9mm in 1 circular arc of outer ring. After raceway processes in 1 circular arc of outer ring, with oil groove knife, raceway junction processes raceway oil groove, raceway oil groove in upper and lower circular arc Width be steel ball size 1/4, depth 2.5mm.
3rd, heat treatment (raceway face quenching, tempering)
The heat treatment process operation of outer ring 1 is substantially with embodiment 3 in the present embodiment, its difference lies in：Quenching inducer Power is 50KW, and quenching IF frequency is 4500Hz, and it is 180mm/min to control 1 rotating linear velocity of outer ring, and inductor with Spacing in 1 circular arc of outer ring between raceway face is 1.3mm, and the hardening media of the present embodiment is dilute through water with embodiment 3, its concentration It is after releasing.After raceway face completes quenching in 1 circular arc of outer ring, it is air-cooled 5 it is small when, be sent into tempering box stove, select the progress of 190 DEG C of temperature Lonneal, tempering time for 3.5 it is small when, come out of the stove after being tempered, and it is air-cooled 7 it is small when after could carry out the processing of next procedure
4th, smart car
The smart car technique of outer ring 1 is essentially consisted in embodiment 3, its difference substantially in the present embodiment：Sealed in the present embodiment The width 4mm of groove, the depth 5mm of seal groove.
5th, worm-gear toothing processing (worm gear hobbing)
The worm-gear toothing processing technology of outer ring 1 is the same as embodiment 3 in the present embodiment.
6th, rule
The line technique of outer ring 1 is the same as embodiment 3 in the present embodiment.
7th, drilling, car mill
The drilling of outer ring 1, car grinding process are essentially consisted in embodiment 3, its difference substantially in the present embodiment：In the present embodiment Fluted drill selection of speed 90r/min used in drilling, screw tap selection 100r/min, select the rotating speed V=of machine tool chief axis when car is ground 70r/min, selects feed F=26mm/min.
B, the technological process of centre circle 5 is：Rough turn-boring, brill-half smart car-heat treatment (raceway quenching)-smart car- Line-drilling-car mill, the specific process of wherein each operation are as follows：
First, it is rough turn
The rough turn processing of centre circle 5 is carried out using annular blank to process raw material, its specific processing is with reference to 1 rough turn technique of outer ring.
2nd, boring, brill
The boring of centre circle 5, brill processing technology are the same as embodiment 3 in the present embodiment.
3rd, half smart car
Half finishing processing technique of centre circle 5 is substantially with embodiment 3 in the present embodiment, its difference lies in：Machine in the present embodiment Bed rotating speed V=45r/min, feed F=20mm/min, the outer raceway of circular arc and interior raceway central diameter stay mill surplus a= 1.0mm, the depth of raceway junction raceway oil groove in the outer raceway junction of the upper and lower circular arc of centre circle 5 and its upper and lower circular arc 2.5mm。
4th, it is heat-treated (raceway quenching-tempering)
Raceway face outside centre circle circular arc is quenched into Line Continuity using Medium frequency induction, IF frequency 6000Hz, in order to Performance after the quenching effect of the outer raceway of 5 circular arc of guarantee centre circle and its quenching, controls arc raceway Surface heat-treatent parameter It is as follows：The distance between the outer raceway of power 52KW, centre circle rotary speed 165mm/min, inductor and centre circle circular arc 1.4mm, quenches Fiery concentration of medium 5%, after the outer raceway face of centre circle circular arc has quenched, it is air-cooled 4 it is small when, then using Medium frequency induction to centre circle circular arc Interior raceway face is quenched into Line Continuity, and IF frequency 7000Hz is air-cooled after the inside and outside raceway face of 5 circular arc of centre circle quenches 5 it is small when, be sent into tempering box stove, carry out lonneal, eliminated the thermal stress produced in quenching process, tempering process parameters are the same as outer Enclose the tempering process of raceway in 1 circular arc.
5th, smart car
The finishing processing of centre circle 5 is substantially the same as the width 4mm of embodiment 3, wherein seal groove, the depth of seal groove in the present embodiment Spend 5mm.
6th, rule
The scribing operation of centre circle 5 is the same as embodiment 3 in the present embodiment.
7th, drill
After line, Drilling operation is carried out to centre circle 5, the processing technology of centre circle mounting hole 501 is the same as outer ring mounting hole 102。
8th, car is ground
The car grinding process of centre circle 5 is substantially with embodiment 3 in the present embodiment, its difference lies in：Car mill processing in the present embodiment The rotating speed V=75r/min of middle selection machine tool chief axis, selects feed F=22mm/min.
C, inner ring manufacturing procedure：Rough turn-half smart car-smart car I-gear shaping (gear gear shaping)-heat treatment (raceway quenching, Gear quenching, tempering)-smart car II-line-drillings-car mill, the specific process of wherein each operation is：
2nd, it is rough turn
Rough turn processing of the rough turn processing technology of inner ring 8 with reference to outer ring 1.
2nd, half smart car
Half finishing processing technique of inner ring 8 is substantially with embodiment 3 in the present embodiment, wherein, select lathe rotating speed V=45r/ Min, feed F=22mm/min；The outer raceway central diameter of circular arc need to stay mill surplus a=1.1mm, and 8 upper and lower circular arc of inner ring The depth 2.5mm of outer raceway junction raceway oil groove.
3rd, smart car I
The smart car I processing technologys of inner ring 8 are the same as embodiment 3 in the present embodiment.
4th, gear shaping (gear gear shaping)
The Gear Shaping technique of inner ring 8 is the same as embodiment 3 in the present embodiment.
5th, it is heat-treated (raceway quenching, gear quenching, tempering)
1st, the quenching of the outer raceway of 8 circular arc of inner ring：The quenching technical of the outer raceway of 8 circular arc of inner ring is with reference to raceway in 1 circular arc of outer ring Quenching technical.
2nd, after the outer raceway face of 8 circular arc of inner ring has quenched, it is air-cooled 5 it is small when, clamping inner ring 8 enters on Gear Quenching Equipment, according to The size of inner ring module, selects dedicated gear surface quenching inducer, using Medium frequency induction to 8 gear tooth table of inner ring Face carries out quenching treatment, and inductor power 50KW, quenching IF frequency is 3500Hz, and inner ring 8 is fixed during Quench heating Motionless, quenching inducer is moved, in order to ensure that it is practical that the hardness of 8 gear teeth of inner ring, wearability and break resistance etc. meet It is required that the linear velocity of control sensor movement is 330mm/min, the distance between inductor and gear tooth surface 2mm, quenching Concentration of medium 5%.Further, since taking turns, space width is smaller easily to occur secondary quenching in quenching process, and there are thermal stress, produces Deformation, therefore, the present embodiment are separated by the technique of quenching using monodentate, i.e. one tooth of a tooth is quenched, and a tooth has quenched Cheng Houzai quenches the tooth at interval, so as to ensure the bearing capacity of pivoting support.
3rd, after inner ring circular arc outer raceway, the surface hardening of gear position, temper is carried out, temper technological parameter is the same as outer Enclose raceway tempering process in 1 circular arc.
6th, smart car II
Smart car technique of the smart car II techniques of inner ring 8 with centre circle 5.
7th, rule
After smart car II process finishings, rule, drilled to inner ring 8, car mill processing, its concrete technology is with reference to outer ring 1 Line, drilling, car grinding process.
D, assemble
The assembly technology of the present embodiment is the same as embodiment 3.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in attached drawing What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution Similar frame mode and embodiment, are within the scope of protection of the invention.

Claims (8)

1. a kind of worm-gear type pivoting support of the opposite rotary motion of interior external tooth, including outer ring (1), centre circle (5) and inner ring (8), institute State in the raceway between outer ring (1) and centre circle (5) and between inner ring (8) and centre circle (5) and be mounted on steel ball and spacing block, its It is characterized in that：The outer ring gear teeth (101) are machined with the outer ring (1), the inner ring gear teeth (801), and outer ring are machined with inner ring (8) The gear teeth (101) use the worm-gear type gear teeth, its modulus m is 2.5~10, and tooth number Z takes 90~280, and tooth form pressure angle α=20 °, conjugate It is 3 °~10 ° that coefficient x, which takes -0.5~+0.5, lead angle β,；The inner ring gear teeth (801) are using double diametral pitch formula gear teeth, the inner ring gear teeth (801) it is DP2/DP1 with double diametral pitch modular representations, its parameters of structural dimension calculates as follows：Reference diameter D0=25.4 × Z/ DP2, height of teeth topHeight of teeth rootTip diameter Da=D0- 2ha, root circle Diameter Df=D0- 2hf；Wherein, gear teeth rises coefficientGear tip clearance coefficient C*=0.25, the value model of gear teeth tooth number Z It is modification coefficient to enclose for 50~300, x.
A kind of 2. worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 1, it is characterised in that：Institute The tooth form for stating the outer ring gear teeth (101) uses involute profile.
3. a kind of worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 1 or 2, its feature exist In：It is corresponding on faying face between the outer ring (1), centre circle (5) and inner ring (8) to be machined with seal groove, installed in seal groove There is sealing ring.
A kind of 4. worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 3, it is characterised in that：Institute The sealing ring (4) stated uses lip type sealing ring, two sealing lip settings symmetrical above and below of the lip type sealing ring.
A kind of 5. worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 4, it is characterised in that：Institute State outer ring (1), the groove profile of seal groove is processed as hyperbolic shape, and the shape of lip type sealing ring on centre circle (5) and inner ring (8) Shape and size match with hyperbola seal groove.
A kind of 6. worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 5, it is characterised in that：Institute State the curvilinear equation x of hyperbola seal groove2/a2-y2/b2In=1, the value range of real axis a is 5~15mm, the value of imaginary axis b Scope is 3~15mm.
7. a kind of worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 1 or 2, its feature exist In：The steel ball rolling channel is processed as duplex circular ares profile race, the contact angle between steel ball and raceway be 45 °, and outer ring (1) with After being assembled between circle (5), centre circle (5) and inner ring (8), there are fit clearance between its mutual raceway and steel ball, this is matched somebody with somebody It is 0.10~0.30mm to close gap size scope.
A kind of 8. worm-gear type pivoting support of interior opposite rotary motion of external tooth according to claim 7, it is characterised in that：Institute The outer ring (1) stated and oil filler point (3) is machined with inner ring (8), oil filler point (3) is connected with steel ball rolling channel, and oil filler point (3) Oil nozzle (2) is inside installed.
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CN202946641U (en) * 2012-11-19 2013-05-22 杭州宗兴齿轮有限公司 Road roller internal gear
CN203585070U (en) * 2013-10-26 2014-05-07 马鞍山市安耐特回转支承有限公司 Driving slewing bearing of plane enveloping worm wheel
CN103711790B (en) * 2013-11-21 2016-02-10 安徽枞晨回转支承有限公司 External tooth type pivoting support in a kind of three circles
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CN205226062U (en) * 2015-12-17 2016-05-11 马鞍山市安耐特回转支承有限公司 Interior external tooth is rotary motion's slewing bearing in opposite directions
CN205823959U (en) * 2016-07-27 2016-12-21 马鞍山市安耐特回转支承有限公司 A kind of worm-gear type pivoting support of interior external tooth gyration in opposite directions

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