CN105972093A - Worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth - Google Patents

Worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth Download PDF

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Publication number
CN105972093A
CN105972093A CN201610600565.2A CN201610600565A CN105972093A CN 105972093 A CN105972093 A CN 105972093A CN 201610600565 A CN201610600565 A CN 201610600565A CN 105972093 A CN105972093 A CN 105972093A
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CN
China
Prior art keywords
outer ring
raceway
inner ring
ring
gear
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Granted
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CN201610600565.2A
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Chinese (zh)
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CN105972093B (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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Priority to CN201610600565.2A priority Critical patent/CN105972093B/en
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Classifications

    • 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 worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth, and belongs to the technical field of slewing bearings. The worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth comprises an outer ring, a middle ring and an inner ring. A roller way between the outer ring and the middle ring and a roller way between the inner ring and the middle ring are both provided with steel balls and isolation blocks. The outer ring gear teeth are machined on the outer ring. The inner ring gear teeth are machined on the inner ring. The outer ring gear teeth are in a worm wheel type, and the inner ring gear teeth are in a dual-diameter-pitch mode. Hyperbola sealing grooves are correspondingly machined in the combination face between the outer ring and the middle ring and the combination face between the middle ring and the inner ring respectively. A dual-lip sealing ring is installed inside each sealing groove. The slewing bearing can meet the requirement of the industries of entertainment machines, light industry machines, filling machines and the like for two-way rotational motion, and can bear the large turnover torque, the abrasion resistance of the gear teeth is remarkably improved, the installation between the sealing ring and the slewing bearing is firmer, the slewing bearing is not likely to fall down, and the service life of the slewing bearing is greatly prolonged.

Description

A kind of worm-gear type pivoting support of interior external tooth gyration in opposite directions
Technical field
The invention belongs to pivoting support technical field, more particularly, it relates to the snail of a kind of interior external tooth gyration in opposite directions Wheel type rotation supports.
Background technology
Pivoting support is applied very extensive in reality industry, is known as " joint of machine ", is to need between two articles Make relative gyration, need again the machinery simultaneously bearing the combined loads such as axial force, radial force, tilting moment necessary important Drive disk assembly, has the features such as compact conformation, stable movement, precision height and bearing capacity are strong.Except various engineering machinery, harbour Outside equipment, metallurgical equipment, oil drilling platform, wind-power electricity generation, the range of application of pivoting support is the most gradually extended to filling machine Tool industry, such as amusement machinery, beverage filling machinery, drinks filling machine etc..
At present, traditional pivoting support equipment generally uses single raceway pivoting support, the side engaged by Internal and external cycle gear Formula transmits driving, i.e. pivoting support can have an astragal gear, inner wrap strip internal gear or outer astragal external gear, is installing Time, it is usually and will be fixed on the main part of main process equipment without gear ring, allow gear ring carry out transmitting power and driving revolution.This biography The pivoting support of the wall scroll raceway of system can be only done the relative gyration of one degree of freedom, when main process equipment needs to carry out in opposite directions During gyration (such as mechanism's move toward one another of filling machine), use a set of pivoting support cannot meet use requirement, for this Need to use two set pivoting supports to carry out transmission simultaneously, thus cause device structure too fat to move, and equipment use during stable Property is relatively poor, rotating accuracy is low, it is impossible to meet the equipment requirement to axial force, radial force and tilting moment.
Through retrieval, about the existing more disclosure of patent of double raceway pivoting supports.
As, Chinese Patent Application No.: 201320310649.4, the applying date: on 06 02nd, 2013, invention and created name For: the double raceway pivoting support of external tooth Dual Drive in a kind of, outside the double raceway pivoting support of the interior external tooth Dual Drive of this application case includes Gear ring, centre circle, ring gear, steel ball and spacing block, centre circle by cross section respectively with a semicircle groove middle Shang Quan and under enclose institute Composition, middle Shang Quan and in lower circle connecting bolt interfix, semicircle groove is relative so that centre circle and ring gear, external toothing it Between form the cavity of two spherical section, steel ball forms the raceway that two two ends are arc-shaped, spacing block in these two cavitys It is arranged on cavity and steel ball contact position.And for example, Chinese Patent Application No.: 201220290133.3, the applying date: 2012 06 month 19 Day, invention and created name is: the isometrical ball-type slewing bearing of Novel double-row, and this application case includes external toothing, centre circle, ring gear, steel Ball, spacing block, band and oil nozzle, external toothing is equipped with band in centre circle, the ring gear sealing ditch with centre circle；Ring gear And between centre circle internal ring wall, the most annularly-distributed between centre circle and external toothing internal ring wall having steel ball, steel ball is provided with spacing block and band, Centre circle internal ring wall bottom is provided with oil nozzle.Above-mentioned application case all achieves returning in opposite directions of equipment by the setting of double raceway pivoting supports Transhipment is dynamic, to some extent solves the problem simultaneously using two set pivoting supports to carry out transmission existence.
But for the use environment of a lot of mechanical field pivoting supports, generally require and bear bigger tilting moment, Pivoting support gear to be ensured has enough intensity and wearability and longer service life, and the revolution of double raceway is propped up Honour requirements above the strictest.But owing to structure and Design Processing are unreasonable, existing pair of raceway pivoting support of China Transmission and bearing capacity limited, it is difficult to meeting some demand requiring higher use occasion, pivoting support is in the process of use Easily break down, as taken turns odontotripsis, broken teeth etc., thus cause pivoting support shorter for service life, change frequently, just affecting it Chang Chuandong works, and seriously hampers commercial production, substantially increases production cost.Simultaneously as structure design is unreasonable, China Existing pair of raceway pivoting support generally improves the ability to bear of its tilting moment by increasing pivoting support size, thus causes Needed for pivoting support, installing space is bigger, it is difficult to meets equipment and installs the restriction requirement of scene.
Additionally, existing pivoting support is typically employed in and processes a longitudinal section respectively on the inner ring of pivoting support and outer ring and be Rectangular annular slot, the body of sealing ring snaps in above-mentioned two draw-in groove, the lower lip of sealing ring and outer ring or the table of inner ring Face closely cooperates, thus ensures its sealing, prevents grease from revealing and enters other impurity in steel ball rolling channel.But returning During turning supporting use, sealing ring often comes off in draw-in groove, thus causes pivoting support seal failure, affects it normal Use, cause pivoting support to shorten service life.In order to solve the caducous problem of pivoting support sealing ring, logical in prior art Frequently with arranging zigzag projection on sealing ring body to increase the frictional force of itself and draw-in groove inwall, prevent from coming off, but use This kind seals structure, and sealing ring of long duration still can come off in draw-in groove, thus causes and be difficult to more greatly to pivoting support and bearing The infringement repaired.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to existing pair of raceway pivoting support of China the most easily break down, service life Shorter, it is difficult to meet some demand requiring higher use occasion, change frequently, thus cause production efficiency to decline, produce Cost is greatly increased, and pivoting support volume is relatively big, takies the deficiency that installing space is big, it is provided that in a kind of, external tooth turns round in opposite directions The worm-gear type pivoting support of motion.The worm-gear type pivoting support of the present invention, it is possible to realize amusement machinery, light indusqtry machinery, fill Mechanism's requirements to two-way relative gyration such as machinery, the hardness of the pivoting support gear teeth, wearability are relatively preferable, thus significantly Extend the service life of pivoting support, the most cost-effective, improve production efficiency, and the compact conformation of pivoting support, body Long-pending less, ensuring smooth transmission.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions of the present invention, including outer ring, centre circle and inner ring, institute It is mounted on steel ball and spacing block in stating the raceway between outer ring and centre circle and between inner ring and centre circle, described outer ring processes Having the outer ring gear teeth, inner ring is machined with the inner ring gear teeth, and the outer ring gear teeth use the worm-gear type gear teeth, the inner ring gear teeth use double diametral pitch formula The gear teeth.
Further, the profile of tooth of the described outer ring gear teeth uses involute profile.
Further, the modulus m of the described outer ring gear teeth is 2.5～10, and tooth number Z takes 90～280, profile of tooth pressure angle α= 20 °, modification coefficient x takes-0.5～+0.5, and helical pitch angle beta is 3 °～10 °.
Further, the described inner ring gear teeth (801) are DP2/DP1 with double diametral pitch modular representations, its parameters of structural dimension meter 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 span of gear teeth tooth number Z is 50～300, and x is modification coefficient.
Further, on the faying face between described outer ring, centre circle and inner ring, equal correspondence is machined with seal groove, seal groove Sealing ring is inside installed.
Further, described sealing ring uses lip type sealing ring, on two sealing lips of this lip type sealing ring Under be symmetrical arranged.
Further, on described outer ring, centre circle and inner ring, the grooved of seal groove is all processed as hyperbolic shape, and lips The shape of formula sealing ring and size all match with hyperbola seal groove.
Further, the curvilinear equation x of described hyperbola seal groove2/a2-y2/b2In=1, the span of real axis a Being 5～15mm, the span of imaginary axis b is 3～15mm.
Further, described steel ball rolling channel is all processed as duplex circular ares profile race, and the contact angle between steel ball and raceway is Between 45 °, and outer ring and centre circle, centre circle and inner ring after assembling, between mutual raceway and steel ball, all there is fit clearance, should Fit clearance magnitude range is 0.10～0.30mm.
Further, described outer ring and inner ring being all machined with oil filler point, oil filler point is connected with steel ball rolling channel, and Oil nozzle is installed in oil filler point.
3. beneficial effect
Use the technical scheme that the present invention provides, compared with prior art, there is following remarkable result:
(1) the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions of the present invention, by outer ring, centre circle and inner ring Structure achieve the gyration in opposite directions of interior external tooth, its outer ring gear teeth use worm-gear type gear teeth, and the inner ring gear teeth use double diametral pitch formula The gear teeth, coordinating to meet tilting moment required bigger by worm-gear type outer ring gear and double diametral pitch formula inner ring gears The requirement of bi-directional rotary motion, significantly improves wearability and the bearing capacity of pivoting support, enhances the gear teeth of pivoting support Contact strength of tooth surface, be conducive to improving the transmission efficiency of pivoting support and service life, greatly reduce production cost, simultaneously Also ensure that the compactedness of pivoting support structure, take installing space and reduce, it is possible to meet requirement restricted to mounting structure Plant equipment, overcome general technology needs by increase pivoting support physical dimension guarantee its bear tilting moment ability Deficiency, greatly reduce production cost.
(2) the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions of the present invention, its sealing ring uses lip type Sealing ring, such that it is able to play dual-seal protected effect, and after the damage of one of them sealing lip, another sealing lip can continue Continuous playing seals the effect protected, the mistake of raceway when preventing water, foreign material, dust etc. from entering raceway and causing pivoting support to use Effect, such as abrasion, spot corrosion, gets rusty or the phenomenon such as clamping stagnation, substantially prolongs the service life of pivoting support.
(3) the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions of the present invention, described outer ring, centre circle and inner ring The grooved of upper seal groove is all processed as hyperbolic shape, and the size of seal groove is optimized design, and hyperbola and lips The shape of formula sealing ring and size all match with hyperbola seal groove, such that it is able to be obviously enhanced lip type sealing ring and revolution Firmly installing property between supporting, sealing ring loose or dislocation during preventing from using, improve pivoting support steel ball rolling channel Seal protected effect, decrease the damage of pivoting support, extend the service life of pivoting support further.
(4) the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions of the present invention, reasonable in design, principle letter Single, it is simple to promote the use of.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions of the present invention；
Fig. 2 is the structural representation of the outer ring of the present invention；
Fig. 3 is the structural representation of the centre circle of the present invention；
Fig. 4 is the structural representation of the inner ring of the present invention.
Label declaration in schematic diagram: 1, outer ring；101, the outer ring gear teeth；102, outer ring installing hole；103, in outer ring first Hole section；104, outer ring the second endoporus section；2, oil nozzle；3, oil filler point；4, sealing ring；5, centre circle；501, centre circle installing hole；502, in Enclose the first cylindrical section；503, centre circle the second cylindrical section；504, centre circle the first endoporus section；505, centre circle the second endoporus section；6, blocking； 7, taper bolt；8, inner ring；801, the inner ring gear teeth；802, inner ring installing hole；803, inner ring the first cylindrical section；804, outside inner ring second Circle section.
Detailed description of the invention
For further appreciating 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 Steel ball and spacing block it is mounted in stating the raceway between outer ring 1 and centre circle 5 and between inner ring 8 and centre circle 5, it is achieved thereby that The bi-directional rotary motion of pivoting support.The present embodiment is in the sidewall of centre circle 5 processes plugging hole, plugging hole, assemble blocking 6, From plugging hole, a number of steel ball and spacing block are installed, thus between centre circle 5 and outer ring 1 and between centre circle 5 and inner ring 8 It is attached, and is fixed by taper bolt 7 between blocking 6 and centre circle 5, i.e. between outer ring 1 and centre circle 5 and inner ring 8 And each one blocking 6 of installation and a taper bolt 7 between centre circle 5.The outer ring gear teeth 101 it are machined with on the outer ring 1 of the present embodiment, interior It is machined with the inner ring gear teeth 801 on circle 8, and the outer ring gear teeth 101 use the worm-gear type gear teeth, the inner ring gear teeth 801 to use double diametral pitch formula wheel Tooth, coordinating to meet tilting moment required bigger by above-mentioned worm-gear type outer ring gear and double diametral pitch formula inner ring gears Bi-directional rotary motion requirement, significantly improve wearability and the bearing capacity of pivoting support, enhance the wheel of pivoting support The contact strength of tooth surface of tooth, is conducive to improving transmission efficiency and the service life of pivoting support, greatly reduces production cost, with Time also ensure that the compactedness of pivoting support structure, take installing space and reduce, it is possible to meet requirement restricted to mounting structure Plant equipment, overcome general technology needs by increase pivoting support physical dimension guarantee its bear tilting moment energy The deficiency of power, greatly reduces production cost.
In the present embodiment, described outer ring 1 and inner ring 8 being all machined with oil filler point 3, oil filler point 3 is connected with steel ball rolling channel Logical, and oil nozzle 2 is installed in oil filler point 3, by oil nozzle 2 timely supplemental lubrication fat in steel ball rolling channel, to steel ball rolling channel and every It is lubricated from block.The material of described outer ring 1, centre circle 5 and inner ring 8 is all selected and is machined with outer ring installation on 42CrMo, and outer ring 1 Hole 102, centre circle 5 is machined with centre circle installing hole 501, inner ring 8 is machined with inner ring installing hole 802, thus is pacified by pivoting support It is loaded on other coupled mechanical mechanism.
Embodiment 2
As it is 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, described outside It is mounted on steel ball and spacing block in raceway between circle 1 and centre circle 5 and between inner ring 8 and centre circle 5.As it is shown on figure 3, this reality Executing in example is to assemble blocking 6 in the sidewall of centre circle 5 processes plugging hole, plugging hole, installs a number of steel ball from plugging hole And spacing block, thus be attached between centre circle 5 and outer ring 1 and between centre circle 5 and inner ring 8, and blocking 6 and centre circle 5 it Between be fixed by taper bolt 7.Above-mentioned steel ball rolling channel is all processed as eccentric duplex circular ares profile race, and outer ring 1 and centre circle 5, centre circle 5 And between inner ring 8 after assembling, all there is fit clearance between mutual raceway and steel ball, this fit clearance magnitude range is 0.10～0.30mm, thereby may be ensured that when pivoting support operates that the contact angle between steel ball and raceway is always 45 °, it is ensured that rolling Do not contact with steel ball bottom road, and store certain grease to reduce fretting wear, advantageously ensure that the normal of pivoting support Work, extends the service life of pivoting support, and in the present embodiment, above-mentioned gap width is 0.2mm.
Concrete, outer ring 1 endoporus of the present embodiment is processed as notch cuttype endoporus, including outer ring the first endoporus section 103 with outer Enclosing the second endoporus section 104, the diameter of bore of outer ring the first endoporus section 103 is less than the diameter of bore of outer ring the second endoporus section 104, and Outer ring the first endoporus section 103 is connected by raceway in outer ring arc with outer ring the second endoporus section 104.Centre circle 5 in the present embodiment Cylindrical and endoporus are all processed as notch cuttype, and its cylindrical includes centre circle the first cylindrical section 502 and centre circle the second cylindrical section 503, in it Hole includes centre circle the first endoporus section 504 and centre circle the second endoporus section 505, during the outside diameter of centre circle the first cylindrical section 502 is less than Enclosing the outside diameter of the second cylindrical section 503, the diameter of bore of centre circle the first endoporus section 504 is more than in centre circle the second endoporus section 505 Between bore dia, and centre circle the first cylindrical section 502 and centre circle the second cylindrical section 503, centre circle the first endoporus section 504 and centre circle second All it is connected by arc raceway between endoporus section 505.The Excircle machining of the inner ring 8 of the present embodiment is notch cuttype, including inner ring One cylindrical section 803 and inner ring the second cylindrical section 804, the outside diameter of inner ring the first cylindrical section 803 is more than inner ring the second cylindrical section It is connected by arc raceway between the outside diameter of 804, and inner ring the first cylindrical section 803 with inner ring the second cylindrical section 804.
As shown in Figure 2, Figure 4 shows, described outer ring 1 is machined with the outer ring gear teeth 101, inner ring 8 is machined with the inner ring gear teeth 801, And the outer ring gear teeth 101 use the worm-gear type gear teeth, the inner ring gear teeth 801 to use double diametral pitch formula gear teeth.The outer ring gear teeth 101 in the present embodiment Profile of tooth 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, profile of tooth pressure angle α =20 °, modification coefficient x takes-0.5～+0.5, and helical pitch angle beta is 3 °～10 °.Pair diametral pitch modular representations of the described inner ring gear teeth 801 For DP2/DP1, its parameters of structural dimension is calculated as follows: reference diameter D0=25.4 × Z/DP2, height of teeth topHeight of teeth rootTip diameter Da=D0-2ha, root diameter Df= D0-2hf；Wherein, DP1、DP2Numerical range be 3～10, gear teeth rises coefficientGear tip clearance coefficient C*= 0.25, the span of modification coefficient X is-1～+1, and pressure angle α is 20 °, and the span of gear teeth tooth number Z is 50～300.This Embodiment, by structure and the size of the outer ring gear teeth 101 with the inner ring gear teeth 801 are optimized design, makes outer ring 1, centre circle 5 and Realize best fit between inner ring 8, thus significantly reduce the fully teeth height degree of gear, improve bending resistance when gear engages, resist Tensile strength performance, enhances stationarity, strength character and wearability during meshed transmission gear, greatly reduces gear in engagement Time the gear tooth interference situation that occurs, and reduce the broken teeth phenomenon that pivoting support in use occurs, thus improve back Turn the quality of supporting, extend its service life, it is possible to meet the transmission under various use environment and bearing requirements.
In the present embodiment, on faying face between outer ring 1, centre circle 5 and inner ring 8, all correspondences are machined with seal groove, in seal groove Sealing ring is installed.Wherein, the grooved of described 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 all with hyperbola seal groove Matching, (grooved of seal groove described in the present embodiment is processed as hyperbolic shape and refers to upper wall and the lower wall of seal groove in Fig. 1 Constitute hyp two, i.e. the outside curve of two sealing lips of lip type sealing ring is hyp two).The present embodiment In can play dual-seal protected effect by arranging of lip type sealing ring, and after one of them sealing lip damages, another Individual sealing lip can continue to play the effect sealing protection, prevents water, foreign material, dust etc. from entering raceway and causing pivoting support to make The inefficacy of used time raceway, such as abrasion, spot corrosion, gets rusty or the phenomenon such as clamping stagnation, substantially prolongs the service life of pivoting support.With Time, the sealing ring 4 of the present embodiment is installed on the inside of faying face, the i.e. installation of sealing ring 4 between outer ring 1, centre circle 5 and inner ring 8 Position is less than outer ring 1, centre circle 5 and the height of inner ring 8, such that it is able to due to sealing ring during overcoming existing pivoting support to use 4 are constantly exposed to the deficiency that outside is susceptible to damage, and further increase the sealing property of sealing ring 4, extend revolution The service life held.By using above-mentioned design to be designed by the mounting plane of outer ring 1, centre circle 5 and inner ring 8 as required For the structure without difference in height, it is to avoid outer ring 1, centre circle 5 and inner ring 8 must be processed as existing the knot of difference in height by prior art Structure is so that the problem installed of sealing ring 4, thus reduces pivoting support along its axial taking up room, and makes structure more step up Gather, and substantially increase the uniformity of pivoting support stress and the bearing capacity of pivoting support.
By the grooved of seal groove being processed as hyperbolic shape in the present embodiment, and the shape of lip type sealing ring and chi Very little all match with hyperbola seal groove, such that it is able to significantly improve install between lip type sealing ring and pivoting support firm Property, during preventing from using there is loose or dislocation in sealing ring 4, and then improves the protection effect of the sealing to pivoting support steel ball rolling channel Really, decrease the damage of pivoting support, be conducive to extending the service life of pivoting support.The curve side of above-mentioned hyperbola seal groove Journey is x2/a2-y2/b2=1, inventor is optimized design by great many of experiments to the geomery of hyperbola seal groove, finally Have been surprisingly found that when the span of real axis a is 5～15mm, when the span of imaginary axis b is 3～15mm, sealing ring 4 and revolution Being firmly combined with property between holding is best, and during pivoting support uses, 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 Sidewall compress mutually, thus ensure fitting tightly of above-mentioned sealing lip and outer ring 1, centre circle 5 and inner ring 8 sidewall, improve further The sealing effectiveness of sealing ring 4 and the fastness installed with pivoting support thereof.Additionally, two sealings of described lip type sealing ring Space storage between lip has certain grease, on the one hand steel ball rolling channel can carry out timely supplemental lubrication fat, the opposing party Face can ensure that and there is certain pressure between two sealing lips of lip type sealing ring, is promoted further by the effect of this pressure Sealing lip and outer ring 1, centre circle 5 and the compactness of inner ring 8 sidewall laminating are entered, it is ensured that sealing ring 4 is combined with pivoting support Fastness.On the basis of ensureing firmly installing property, use the seal groove sealing relative to existing pivoting support of the present embodiment Groove structure, significantly reduces the cost in the degree of depth of seal groove and production and processing.
In the present embodiment, described outer ring 1 and inner ring 8 being all machined with oil filler point 3, oil filler point 3 is connected with steel ball rolling channel Logical, and oil nozzle 2 is installed in oil filler point 3, by oil nozzle 2 timely supplemental lubrication fat in steel ball rolling channel, to steel ball rolling channel and every It is lubricated from block.The material of described outer ring 1, centre circle 5 and inner ring 8 is all selected and is machined with outer ring installation on 42CrMo, and outer ring 1 Hole 102, centre circle 5 is machined with centre circle installing hole 501, inner ring 8 is machined with inner ring installing hole 802, thus enters pivoting support Row is installed fixing.
In sum, the pivoting support of the method processing being originally embodiment is used, it is possible to bear bigger axial force, radially Power and tilting moment, be possible not only to meet amusement machinery, light indusqtry machinery, tinning machinery etc. and have bi-directional rotary kinetic characteristic Machinery industry pivoting support, meanwhile, the wearability of wheel tooth position significantly improves, the internally installed connected mode of sealing ring Seem more firm, difficult drop-off and damage so that the sealing property of pivoting support is strengthened, and the above cooperates, Common effect, so that the range of application of gained pivoting support expands, performance and quality are promoted simultaneously, and then make it use Life-span is extended.
Embodiment 3
The structure of the worm-gear type pivoting support of the present embodiment specifically includes with embodiment 2, the processing method of this pivoting support Following steps:
A, the technological process of outer ring 1 be: rough turn half finish turning heat treatment (raceway quenching) finish turning gear hobbing (snail Wheel gear hobbing) line boring car mill, the specific process of the most each operation is as follows:
One, rough turn
1, with annular blank for processing raw material, select a relatively flat plane as roughing standard, clamping outer ring 1 endoporus, Process the height dimension that another plane to technological requirement is worked into；Again with machined surface as essence benchmark, after standing up 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.
2, after the plane machining of outer ring 1 is complete, clamping outer ring 1 endoporus, school circle cylindrical, school circle franchise is not more than 0.1mm, school circle The outside diameter size that post-treatment outer ring 1 cylindrical to technological requirement is worked into；After Excircle machining is complete, clamping cylindrical school circle, school Circle franchise is not more than 0.1mm, the diameter of bore size that circle post-treatment outer ring 1, school endoporus is worked into technological requirement.Outside outer ring 1 Circle, diameter of bore allowance scope are 2～5mm, and processing tolerance is-0.8～+0.8mm.
Two, half finish turning
Select a plane as the installed surface of outer ring 1, and using this plane as datum plane, circle outer ring 1, school endoporus, school circle Franchise is not more than 0.1mm, and rear clamping outer ring 1 cylindrical has been justified in school, is processed the circular arc of outer ring 1 by numerical programming processor Interior roller path structure size.
According to outer ring 1 physical dimension of mark in drawing, principal parameter need to be inputted in a program: outer ring actual height H1, work In the circular arc of skill requirement pairing, raceway central diameter D01, the steel ball center height H01 of technological requirement processing, technological requirement are processed The endoporus major part that in circular arc, raceway radius R1, technological requirement are processed is (as in figure 2 it is shown, be raceway in the circular arc of outer ring 1 in the present embodiment Endoporus one end that top is corresponding, is outer ring the first endoporus section 103) the endoporus microcephaly of diameter d1 and technological requirement processing is (such as Fig. 2 Shown in, endoporus one end corresponding below raceway in the circular arc of outer ring 1, it is outer ring the second endoporus section 104) diameter d2 etc..In steel ball Vertical dimension between the heart height i.e. centre of sphere of steel ball and installed surface.
Specifically adding man-hour, according to outer ring 1 diameter, the present embodiment selects lathe rotating speed V=60r/min, feed F= 16mm/min；In the circular arc of outer ring 1, raceway central diameter stays mill surplus a=1.2mm.After in the circular arc of outer ring 1, raceway processes, with oil Groove cutter is raceway junction processing raceway oil groove in upper and lower circular arc, and the width of raceway oil groove is the 1/4 of steel ball size, the degree of depth 3mm。
Three, heat treatment (raceway face quenching, tempering)
1, clamping outer ring 1 cylindrical on raceway quenching press, according to the size of raceway in the circular arc of outer ring 1, selects special rolling Road surface hardening induction apparatus, uses Medium frequency induction that raceway in the circular arc of outer ring 1 is carried out surface continuity quenching, quenching inducer Power be 47KW, quenching IF-FRE is 2500Hz, controls outer ring 1 and rotate, consequently facilitating right during Quench heating In the circular arc of outer ring 1, raceway carries out continuous quenching.
In order to ensure the serviceability after the quenching effect of raceway in the circular arc of outer ring 1 and quenching thereof, as rolled in the circular arc of outer ring 1 The case hardness in road requires to reach HRC55～62, and the effective depth of quench-hardened case requires to reach 4～6mm, and soft ribbons width is not more than 25 ～50mm, it is 210mm/min that the present embodiment controls the linear velocity that outer ring 1 rotates, and raceway face in induction apparatus and outer ring 1 circular arc Between spacing be 1mm.The model that hardening media in the present embodiment selects Nanjing Kerun Lubricants Co., Ltd. to produce is The water-soluble quenching medium of KR6480, the mass percent concentration after aqueous solvent dilutes is 4%.Concrete, outside controlling Circle 1 rotary speed and induction apparatus and outer ring 1 raceway face between spacing can effectively control sensor to outer ring 1 raceway table The heat time heating time in face and hardening heat.When outer ring 1 rotary speed is too fast or induction apparatus is excessive with outer ring 1 raceway face spacing easy When causing outer ring 1 raceway face quenching, heat time heating time is inadequate or temperature is too low, and its component of organization can not all change, tissue Performance can not arrive requirement, thus causes the hardness deficiency of outer ring 1 raceway face；And when outer ring 1 rotary speed crosses slow or sensing When device is too small with outer ring 1 raceway face spacing, when causing outer ring 1 raceway face to quench, heat time heating time is long or temperature is too high, Easily there is superheating phenomenon in outer ring 1 raceway face, thus causes outer ring 1 raceway face insufficient strength, and toughness declines, and is easily generated and splits Stricture of vagina, overheated serious time even there will be the situation of burning, cause outer ring 1 raceway face to occur burning hole, cause outer ring 1 to will be unable to make With.After in the circular arc of outer ring 1, raceway face completes quenching, air cooling 4 hours, it is sent into tempering box stove, selects temperature 200 DEG C to carry out low temperature Tempering, tempering time is 3 hours, comes out of the stove after being tempered, and air cooling just can carry out the processing of next procedure after 8 hours.
The present embodiment is by selecting suitable hardening media kind, and coordinates specific Technology for Heating Processing, such that it is able to protect Card has stable cooling characteristics, hardens uniformly during workpiece quenching, and can reduce the deformation of workpiece, goes out after preventing workpiece quenching Existing crackle, further ensures the quenching effect of outer ring 1 raceway, is conducive to improving its serviceability and extending making of pivoting support Use the life-span.Additionally, inventor is through experimental studies have found that, how much concentration of hardening media directly affects rate of cooling when quenching Speed, and then affect quality and the performance of pivoting support.If rate of cooling is the slowest, then be easily caused surface of the work hardness not enough, Uneven, find expression in raceway face and gear position when pivoting support uses easy to wear；If rate of cooling is too fast, then it is easily caused Fine cracks occurs after hard heat treatment, even ftractures, find expression in peeling and the gear of raceway face when pivoting support uses Broken teeth, and these defects above-mentioned 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 finds, in the range of being 4～5% by the concentration dilution of the hardening media of the present embodiment Time, it is possible to efficiently controlling the deflection of workpiece, reduce the cracking of workpiece, it is to avoid the generation of quenching soft spot, workpiece hardens uniformly, Thus improve quality and the service life of pivoting support product.
Four, finish turning
1, process non-installed surface using installed surface as benchmark, stand up again using non-installed surface as benchmark to process installed surface, The symmetrical plane of the i.e. installed surface of non-installed surface mentioned here.During processing installed surface and non-installed surface, it is desirable to control outer ring 1 well Individual pen height and steel ball center are high so that it is reach the size of technological requirement processing.
2, after plane machining is complete, using non-installed surface as datum plane, carrying out cylindrical school circle, school circle franchise is not more than 0.05mm, clamping endoporus after the circle of school, the outside diameter size that processing excircles to technological requirement is processed；Using the cylindrical that processes as Benchmark school circle, school circle franchise is not more than 0.05mm, clamping cylindrical after the circle of school, and major part to the technological requirement of processing endoporus is worked into Diameter of bore.
3, after processing the diameter at butt end of outer ring 1 endoporus, the structure of outer ring 1 inner seal groove is processed, wherein, root According to the size dimension of sealing ring selected in product design, determine the Working position of seal groove, Working position scale error ± 0.2mm, the width 2.5mm of seal groove, degree of depth 4mm of seal groove such that it is able to be further ensured that sealing ring 4 and pivoting support In conjunction with fastness, prevent to come off, affect the service life of pivoting support.
Five, worm-gear toothing processing (worm gear hobbing)
1, selecting outer ring 1 installed surface as datum plane, circle outer ring 1, school cylindrical, school circle franchise is not more than 0.05mm, school circle After on gear-hobbing machine clamping outer ring 1 endoporus；After outer ring 1 clamping is complete, select and the worm gear hob cutter of outer ring 1 worm gear parameter pairing And install.When worm gear hob is installed, center and worm gear generant circle of gorge (the i.e. outer ring, outer ring of worm gear hob knife bar need to be adjusted Circular arc on periphery) center alignment, complete worm gear hob cutter is worked, thus ensure adding of the outer ring gear teeth 101 Work performance.
2, after Cutting tool installation manner is complete, according to the number of teeth of worm gear, the divided teeth gear of proportioning gear-hobbing machine, the follow-up rolling carrying out worm gear are come Tooth is processed, and obtains the worm-gear type gear teeth.Adding man-hour, the depth of cut common normal to be processed with worm gear is relevant, Δ L=Δ W/ (2*sin α)。
In formula: the Δ L-depth of cut, Δ W-common normal allowance, α-pressure angle, now we define k=1/ (2*sin α) For feed coefficient, pressure angle α=20 ° of the present embodiment, k=1.462.
3, processing when the outer ring gear teeth 101, outer ring 1 need to carry out chamfering, repair the processing such as burr the worm-gear type gear teeth after getting off Technique.
Six, line
1, on numerical control marking lathe, work out line program, input the installation centre-to-centre spacing size of outer ring installing hole 102, outward Angular values between circle installing hole 102；
2, in time ruling, 6 positions of symmetrical decile two-by-two need to be carried out with dial gauge and carry out endoporus school circle, school circle franchise It is not more than 0.05mm, thus ensure that the accuracy of its endoporus school circle.
3, after school circle is qualified, clamping cylindrical.According to the situation of outer ring installing hole 102 distribution, raceway in outer ring arc Quenching soft ribbons position is placed between two installing holes of outer ring 1, and confirms the start position of line, the i.e. position of an installing hole Put.After confirming starting point, run numerical control marking program on installed surface, carry out line processing, finally return start position with 360 °.
Seven, boring
1, according to the position of line, drilling machine carries out the brill processing of outer ring installing hole 102, from installed surface toward non-installed surface It is processed；
2, according to size, the specification of outer ring installing hole 102, select fluted drill, the screw tap needed, process qualified outer ring peace Dress hole 102, the present embodiment fluted drill selects 50r/min, and screw tap selects 120r/min.
3, 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.
Eight, car mill
1, selecting installed surface as datum plane, carry out endoporus diameter at butt end school circle, school circle franchise is not more than 0.05mm.School Circle qualified rear clamping outer ring 1 cylindrical.
2, time to be processed, according to the design of drawing, raceway central diameter in the circular arc that input need to be processed in numerical control program Raceway radius R in D0, steel ball center height H0, circular arc；According to raceway central diameter size in the circular arc of processing in half finish turning operation With stay mill surplus, determine that the depth of cut that every cutter is processed, every cutter depth of cut are not more than 1mm；According to raceway central straight 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.
3, in the course of processing, according to the total backlash technology requirement of pivoting support outer ring in drawing 1 with centre circle 5, rationally divide Join the machining tolerance of raceway central diameter D0 in the circular arc of outer ring 1, it is simple to during assembling, select suitable steel ball to carry out pre-assembled and tune Whole outer ring and the total backlash requirement of centre circle.
4, after machining, whether close with the contact angle of raceway in arc raceway contact angle bevel protractor detection outer ring arc Lattice, original contact angle a=45 °, it is allowed to range of error-2 °～+5 °.The described original i.e. steel ball of contact angle a is in outer ring arc The angle between contact point and the line of the steel ball centre of sphere and horizontal radial direction, outer ring on raceway.
B, the technological process of centre circle 5 be: rough turn boring, bores half finish turning heat treatment (raceway quenching) finish turning Line boring car mill, the specific process of the most each operation is as follows:
One, rough turn
Taking annular blank as the rough turn processing processing raw material and carrying out centre circle 5, it is specifically processed with reference to the rough turn technique in outer ring 1.
Two, boring, brill
1 as it is shown on figure 3, according to Design Requirement Drawing, select the fluted drill of corresponding specification size, utilize boring machine at centre circle 5 Two opposite flanks process plugging hole T1, plugging hole T2 respectively, wherein, plugging hole T1 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 all select base Hole system coordinates, and selecting fit tolerance accuracy class is that the position between H8, and plugging hole T1 and plugging hole T2 is right by about 180 ° Claim distribution.
2, after plugging hole processes, the blocking 6 that assembling is corresponding, tapering can be processed according to the structure size of pivoting support For the circular cone pin-and-hole of the different-diameter such as the φ 3 of 1:50, φ 5, φ 10, and select the taper bolt 7 of correspondence, in component location guide taper pin-hole with Just being fastenedly connected between blocking 6 and plugging hole.
Three, half finish turning
1, select a plane as the installed surface of centre circle 5, and using this plane as datum plane, school circle centre circle 5 cylindrical, school Circle franchise is not more than 0.1mm, and rear clamping centre circle 5 endoporus has been justified in school, and numerical programming processor is processed outside the circular arc of centre circle 5 Roller path structure size.
According to centre circle 5 physical dimension of mark in drawing, principal parameter need to be inputted in a program: centre circle actual height H2, work Skill requires outer raceway central diameter D02 of circular arc of pairing, the outer raceway steel ball center height H02 of technological requirement processing, technological requirement The outer raceway radius R2 of circular arc of processing, technological requirement processing cylindrical major part (as it is shown on figure 3, the present embodiment middle finger centre circle 5 circular arc Cylindrical one end below outer raceway, i.e. centre circle the second cylindrical section 503) diameter d3 and technological requirement processing cylindrical microcephaly's (this reality Execute the cylindrical one end above the outer raceway of example middle finger centre circle 5 circular arc, i.e. centre circle the first cylindrical section 502) diameter d4 etc., steel ball center is high I.e. vertical dimension between the centre of sphere and the installed surface of steel ball.
Specifically add man-hour, according to centre circle 5 diameter, select lathe rotating speed V=60/min, feed F=16mm/min； The outer raceway central diameter of circular arc need to stay mill surplus a=0.6mm.After the outer raceway of centre circle 5 circular arc processes, with oil groove cutter upper, Lower circular arc outer raceway junction processing raceway oil groove, oil groove width is the 1/4 of steel ball size, degree of depth 3mm.
2, the installed surface selecting centre circle 5 is not more than 0.1mm, school circle as datum plane, school circle centre circle endoporus, school circle franchise Clamping centre circle cylindrical after completing, numerical programming processor processes roller path structure size in the circular arc of centre circle 5.
According to the centre circle physical dimension of mark in drawing, principal parameter need to be inputted in a program: centre circle actual height H2, technique In the circular arc of requirement pairing, raceway central diameter D03, the interior raceway steel ball center height H03 of technological requirement processing, technological requirement add The endoporus major part of raceway radius R3 in the circular arc of work, technological requirement processing (endoporus one end below raceway in centre circle 5 circular arc, i.e. Centre circle the second endoporus section 505) the endoporus microcephaly (endoporus one above raceway in centre circle 5 circular arc of diameter d5 and technological requirement processing End, i.e. centre circle the first endoporus section 504) diameter d6 etc..Vertical dimension between the centre of sphere and the installed surface of the steel ball center i.e. steel ball of height.
Add man-hour according to centre circle diameter, selection lathe rotating speed V=60r/min, feed F=16mm/min；Circular arc Interior raceway central diameter need to stay mill surplus a=0.6mm.After in centre circle circular arc, raceway processes, with oil groove cutter at upper and lower circular arc Interior raceway junction processing raceway oil groove, oil groove width is the 1/4 of steel ball size, degree of depth 3mm.
Four, heat treatment (raceway Q-tempering)
1, clamping centre circle 5 enters on raceway quenching press, according to the size of the outer raceway of centre circle circular arc, selects special raceway face Quenching inducer, uses Medium frequency induction raceway face outer to centre circle circular arc to carry out seriality quenching, and IF-FRE is 2500Hz.In During the outer raceway face quenching of circle circular arc, it is desirable to start to the another side of plugging hole T1 from the position of plugging hole T1 to terminate.
In order to ensure the serviceability after the quenching effect of the outer raceway of centre circle 5 circular arc and quenching thereof, as rolled outside centre circle circular arc The case hardness in road requires to reach HRC55～62, and the effective depth of quench-hardened case requires to reach 4～6mm, and soft ribbons width is not more than stifled The diameter of consent T1 adds 20～35mm, controls arc raceway Surface heat-treatent parameter as follows: power 47KW, centre circle rotary speed Distance 1.5mm between the outer raceway of 140mm/min, induction apparatus and centre circle circular arc, hardening media and outer ring 1 raceway hardening media phase With, its concentration is 4%.
2, after the outer raceway face of centre circle circular arc has quenched, air cooling 3 hours, clamping centre circle 5 enters on raceway quenching press, according in In circle circular arc, the size of raceway, selects special raceway face quenching inducer, uses Medium frequency induction to raceway in centre circle circular arc Surface carries out seriality quenching, and IF-FRE is 2500Hz.In centre circle circular arc during raceway face quenching, it is desirable to from plugging hole T2's One end position starts to the other end to terminate, and its quenching process parameters controls with the outer raceway quenching technical of centre circle circular arc.Centre circle 5 circular arc After inside and outside raceway face all quenches, air cooling 4 hours, it is sent into tempering box stove, carries out lonneal, eliminated in quenching process and produced Raw thermal stress, tempering process parameters is with the tempering process of raceway in the circular arc of outer ring 1.
Five, finish turning
1, process non-installed surface using installed surface as datum plane, then process installation using non-installed surface as datum plane Face.
After 2 plane machinings are complete, with non-installed 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 the major part of processing excircles to technological requirement is worked into；Process After the diameter at butt end of cylindrical, process seal groove size.According to the size dimension of sealing ring selected in product design, determine sealing The Working position of groove, Working position scale error ± 0.2mm, the width 2.5mm of seal groove, degree of depth 4mm of seal groove.
Six, line
1, on numerical control marking lathe, work out line program, input the installation centre-to-centre spacing size of centre circle installing hole 501, in Angular values between circle installing hole 501.
2, in time ruling, 6 positions of symmetrical decile two-by-two need to be carried out with dial gauge and carry out cylindrical school circle, school circle franchise It is not more than 0.05mm.
3, after school circle is qualified, clamping endoporus.According to the situation of centre circle installing hole 501 distribution, run numerical control marking program, From plugging hole position, start line processing on installed surface, finally return plugging hole position with 360 °.
Seven, boring
After line terminates, centre circle 5 being carried out Drilling operation, the processing technique of centre circle installing hole 501 is with outer ring installing hole 102。
Eight, car mill
1, selecting non-installed 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.The school qualified rear clamping centre circle endoporus of circle.
Time to be processed, according to the design of drawing, the outer raceway central diameter of the circular arc that input need to be processed in numerical control program The outer raceway radius R2 of D02, steel ball center height H02, circular arc；According to the outer raceway central diameter chi of the circular arc of processing in half finish turning operation Very little and stay mill surplus, determine that the depth of cut that every cutter is processed, every cutter depth of cut are not more than 1mm；According to the outer raceway center of 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 the course of processing, according to the total backlash technology requirement of pivoting support outer ring in drawing 1 with centre circle 5, reasonable distribution The machining tolerance of outer raceway central diameter D02 of centre circle circular arc, it is simple to select suitable steel ball to carry out pre-assembled and adjustment during assembling Outer ring and the total backlash requirement of centre circle.
After machining, the contact angle with the arc raceway contact angle bevel protractor outer raceway of detection centre circle circular arc is the most qualified, Original contact angle a=45 °, it is allowed to range of error-2 °～+5 °.The described original i.e. steel ball of contact angle a is at the outer raceway of 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.
2, selecting non-installed surface as datum plane, endoporus diameter at butt end carries out school circle, school circle franchise is not more than 0.05mm.The school qualified rear clamping centre circle cylindrical of circle.
Time to be processed, according to the design of drawing, raceway central diameter in the circular arc that input need to be processed in numerical control program Raceway radius R3 in D03, steel ball center height H03, circular arc；According to raceway central diameter chi in the circular arc of processing in half finish turning operation Very little and stay mill surplus, determine that the depth of cut that every cutter is processed, every cutter depth of cut are not more than 1mm；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 the course of processing, according to the total backlash technology requirement of pivoting support inner ring in drawing Yu centre circle, in reasonable distribution The machining tolerance of raceway central diameter D03 in circle circular arc, it is simple in selecting suitable steel ball to carry out pre-assembled and adjust during assembling Circle and the total backlash requirement of centre circle.
It is after machining, the most qualified with the contact angle of raceway in arc raceway contact angle bevel protractor detection centre circle circular arc, Original contact angle a=45 °, it is allowed to range of error-2 °～+5 °.The described original i.e. steel ball of contact angle a 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 finish turning finish turning I gear shaping (gear gear shaping) heat treatment (raceway quenching, Gear quenching, tempering) finish turning II line boring car mill, the specific process of the most each operation is:
One, rough turn
The rough turn processing technique of inner ring 8 is with reference to the rough turn processing of outer ring 1.
Two, half finish turning
1, select a plane as the installed surface of inner ring 8, and using this plane as datum plane, school circle inner ring 8 cylindrical, school Circle franchise is not more than 0.1mm, and rear clamping inner ring 8 endoporus has been justified in school, rolls outside the circular arc of numerical programming processor processing inner ring 8 Road physical dimension.
2, according to inner ring 8 physical dimension of mark in drawing, principal parameter need to be inputted in a program: inner ring actual height H1, Outer raceway central diameter D04 of circular arc of technological requirement pairing, the steel ball center height H04 of technological requirement processing, technological requirement processing The outer raceway radius R4 of circular arc, cylindrical major part (the cylindrical one end above the outer raceway of inner ring circular arc, the i.e. inner ring of technological requirement processing First cylindrical section 803) diameter d7 and technological requirement processing cylindrical microcephaly (the cylindrical one end below the outer raceway of inner ring circular arc, i.e. Inner ring the second cylindrical section 804) diameter d8 etc..Add man-hour, according to inner ring 8 diameter, select lathe rotating speed V=60r/min, walk Cutter amount F=16mm/min；The outer raceway central diameter of circular arc need to stay mill surplus a=0.6mm.
3, after the outer raceway of inner ring 8 circular arc processes, with oil groove cutter at upper and lower circular arc outer raceway junction processing raceway oil Groove, oil groove width is the 1/4 of steel ball size, degree of depth 3mm.
Three, finish turning I
Process non-installed surface using installed surface as datum plane, stand up again using non-installed surface as datum plane to process peace Dress face；After plane machining is complete, using non-installed surface as datum plane, carrying out endoporus school circle, school circle franchise is not more than 0.05mm, school Clamping cylindrical after circle, processing diameter of bore and the inner hole structure size that there are other, such as the endoporus step of inner ring 8 installed surface one end Diameter.
Four, gear shaping (gear gear shaping)
Gear parameter according to inner ring 8 selects corresponding toothed disc slotting tool tool, the divided teeth gear of proportioning gear shapping machine, and installs Dish slotting tool has.Selecting inner ring installed surface as datum plane, school circle inner ring 8 endoporus, school circle franchise is not more than 0.05mm, after the circle of school Clamping inner ring 8 cylindrical, after completing clamping, carry out toothed disc slotting tool tool to cutter work, the follow-up Gear Shaping carrying out gear, i.e. Process double diametral pitch formula gear teeth of inner ring 8.Adding man-hour, the depth of cut common normal to be processed with gear is relevant, Δ L=Δ W/ (2* Sin α), in formula: the Δ L-depth of cut, Δ W-common normal allowance, α-pressure angle, after gear Gear Shaping is complete, gear tooth Chamfering need to be carried out, repair the processing technique such as burr.
Five, heat treatment (raceway quenching, gear quenching, tempering)
1, the quenching of the outer raceway of inner ring 8 circular arc: the quenching technical of the outer raceway of inner ring 8 circular arc is with reference to raceway in the circular arc of outer ring 1 Quenching technical.
2, after the outer raceway face of inner ring 8 circular arc has quenched, air cooling 4 hours, clamping inner ring 8 enters on Gear Quenching Equipment, according to The size of inner ring module, selects special gear surface quenching inducer, uses Medium frequency induction to inner ring 8 gear tooth table Face carries out Quenching Treatment, induction apparatus power 55KW, and quenching IF-FRE is that inner ring 8 is fixed during 2500Hz, and Quench heating Motionless, quenching inducer moves, in order to ensure the satisfied practicalities such as the hardness of inner ring 8 gear teeth, wearability and break resistance Requirement, the linear velocity that control sensor moves is 290mm/min, and distance 3.5mm between induction apparatus and gear tooth surface is quenched Fire concentration of medium 4%.Additionally, due to take turns, space width is less easily there is secondary quenching in quenching process, there is thermal stress, produces Change shape, and therefore, the present embodiment uses monodentate to be separated by the technique of quenching, and one tooth of i.e. one tooth quenches, a tooth quenching Again the tooth at interval is quenched after completing, thus ensure the bearing capacity of pivoting support.
3, after inner ring circular arc outer raceway, the surface hardening of gear position, carrying out temper, temper technological parameter is with outward Enclose raceway tempering process in 1 circular arc.
Six, finish turning II
The finish turning II technique of inner ring 8 is with the finish turning technique of centre circle 5.
Seven, rule, hole, car mill
After finish turning II process finishing, inner ring 8 rule, hole, car mill processing, its concrete technology is with reference to outer ring 1 Line, boring, car grinding process.
D, assembling
1, lifting outer ring 1, centre circle 5 and inner ring 8 level are put on assembly bench, according to technology in drawing require outer ring 1 with in Circle 5, total backlash value between inner ring 8 and centre circle 5, according to the circular arc rolling of pairing 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.
2, owing to being sealed into inner sealing between outer ring 1 and centre circle 5, therefore need first to assemble sealing ring 4, then from centre circle The plugging hole T1 assembling steel ball of processing on 5 and spacing block, connect outer ring 1 and centre circle 5.Steel ball and the quantity of spacing block assemblingIn formula: the arc raceway central diameter between D0 outer ring and centre circle, d0 steel ball size, b isolates Block thickness, the steel ball number n of calculating is rounded by result of calculation, the numerical value after arithmetic point, available adjust spacing block with dehorn accurate every The gap between steel ball and spacing block is eliminated from block.
After steel ball between outer ring 1 and centre circle 5 and spacing block have assembled, grease can be injected from plugging hole T1, lubricate steel Rolling between ball with raceway is connected；In plugging hole T1, assemble the blocking of correspondence after having noted grease, and fix with taper bolt 7 Blocking 6, prevents steel ball and spacing block from dropping from plugging hole.
3, after outer ring 1 and centre circle 5 have assembled, 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 ball of processing and spacing block, connect inner ring 8 and centre circle 5.Steel ball and the quantity of spacing block assemblingIn formula: the arc raceway central diameter between D0 inner ring and centre circle, d0 steel ball size, b isolates Block thickness, the steel ball number n of calculating is rounded by result of calculation, the numerical value after arithmetic point, available adjust spacing block with dehorn accurate every The gap between steel ball and spacing block is eliminated from block.
After steel ball between inner ring 8 and centre circle 5 and spacing block have assembled, grease can be injected from plugging hole T2, lubricate steel Rolling between ball with raceway is connected；In plugging hole T2, the blocking 6 of correspondence is assembled after having noted grease, and solid with taper bolt 7 Fixed blocking, prevents steel ball and spacing block from dropping from plugging hole.
4, after outer ring 1 has all been assembled with centre circle 5 with centre circle 5, inner ring 8, the oil nozzle of the corresponding model of assembling at oil filler point 3 2, and product surface smears one layer of antirust oil, prevents product surface oxidisation during placing, causes the damage of product.
5, final product is 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, such as machine when half finish turning and car grind Bed rotating speed, feed etc. are optimized design, such that it is able to significantly improve the machining accuracy of pivoting support, it is ensured that between each circle Assembly precision, reduces the stress of each circle and the inside and outside gear teeth in the course of processing and concentrates and deformation, and then ensure that making of pivoting support By performance, be conducive to extending its service life.Meanwhile, inventor and inside and outside takes turns each circle raceway also by lot of experiments The Technology for Heating Processing of tooth is optimized design, thereby may be ensured that the performances such as the hardness of pivoting support, wearability meet severe ring Use requirement under border, reduces each circle and the stress deformation of the inside and outside gear teeth.Additionally, inventor is by great many of experiments, finally select The water-soluble quenching medium of the present embodiment, and the concentration of hardening media is optimized design, thus further ensure revolution The serviceability of supporting, and from improving product quality, improving working conditions, keep the safety in production and energy-conservation 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 be: rough turn half finish turning heat treatment (raceway quenching) finish turning gear hobbing (snail Wheel gear hobbing) line boring car mill, the specific process of the most each operation is as follows:
One, rough turn
In the present embodiment, the rough turn processing technique of outer ring 1 is with embodiment 3.
Two, half finish turning
In the present embodiment, half finish turning processing technique of outer ring 1 is substantially with embodiment 3, and its difference is: the present embodiment selects Lathe rotating speed V=16r/min, feed F=36mm/min；In the circular arc of outer ring 1, raceway central diameter stays mill surplus a=0.6mm. After in the circular arc of outer ring 1, raceway processes, with oil groove cutter raceway junction processing raceway oil groove, raceway oil groove in upper and lower circular arc Width is steel ball size 1/4, the degree of depth is 2mm.
Three, heat treatment (raceway face quenching, tempering)
In the present embodiment, the Technology for Heating Processing operation of outer ring 1 is basic with embodiment 3, and its difference is: quenching inducer Power is 55KW, and quenching IF-FRE is 8000Hz, and to control the linear velocity that moves of outer ring 1 be 140mm/min, and induction apparatus with In the circular arc of outer ring 1, the spacing between raceway face is 1.5mm, the hardening media of the present embodiment with embodiment 3, its mass percent Concentration is 5% after water dilutes.After in the circular arc of outer ring 1, raceway face completes quenching, air cooling 6 hours, it is sent into tempering box stove, selects Temperature 180 DEG C carries out lonneal, and tempering time is 4 hours, comes out of the stove after being tempered, and air cooling just can carry out lower road after 6 hours The processing of operation
Four, finish turning
In the present embodiment, the finish turning technique of outer ring 1 is substantially with embodiment 3, and its difference essentially consists in: seal in the present embodiment The width 5mm of groove, degree of depth 6mm of seal groove.
Five, worm-gear toothing processing (worm gear hobbing)
In the present embodiment, the worm-gear toothing processing technique of outer ring 1 is with embodiment 3.
Six, line
In the present embodiment, the line technique of outer ring 1 is with embodiment 3.
Seven, boring, car mill
The boring of outer ring 1 in the present embodiment, car grinding process are substantially with embodiment 3, and its difference essentially consists in: in the present embodiment Boring fluted drill selection of speed 140r/min used, screw tap selects 60r/min, selects the rotating speed V=of machine tool chief axis during car mill 20r/min, selects feed F=36mm/min.
B, the technological process of centre circle 5 be: rough turn boring, bores half finish turning heat treatment (raceway quenching) finish turning Line boring car mill, the specific process of the most each operation is as follows:
One, rough turn
Taking annular blank as the rough turn processing processing raw material and carrying out centre circle 5, it is specifically processed with reference to the rough turn technique in outer ring 1.
Two, boring, brill
The boring of centre circle 5 in the present embodiment, brill processing technique are with embodiment 3.
Three, half finish turning
In the present embodiment, half finish turning processing technique of centre circle 5 is substantially with embodiment 3, and its difference is: 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, degree of 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 upper and lower circular arc thereof.
Four, heat treatment (raceway Q-tempering)
Using Medium frequency induction raceway face outer to centre circle circular arc to carry out seriality quenching, IF-FRE is 8000Hz, in order to Serviceability after the quenching effect of the outer raceway of guarantee centre circle 5 circular arc and quenching thereof, controls arc raceway Surface heat-treatent parameter As follows: power 55KW, centre circle rotary speed 210mm/min, distance 1mm between induction apparatus and the outer raceway of centre circle circular arc, quenching Concentration of medium 5%, after the outer raceway face of centre circle circular arc has quenched, air cooling 5 hours, then use Medium frequency induction in centre circle circular arc Raceway face carries out seriality quenching, and IF-FRE is 8000Hz, after the inside and outside raceway face of centre circle 5 circular arc all quenches, and air cooling 6 Hour, it being sent into tempering box stove, carry out lonneal, eliminated the thermal stress produced in quenching process, tempering process parameters is with outward Enclose the tempering process of raceway in 1 circular arc.
Five, finish turning
In the present embodiment, the finish turning processing of centre circle 5 is basic with embodiment 3, the wherein width 5mm of seal groove, seal groove deep Degree 6mm.
Six, line
In the present embodiment, the scribing operation of centre circle 5 is with embodiment 3.
Seven, boring
After line terminates, centre circle 5 being carried out Drilling operation, the processing technique of centre circle installing hole 501 is with outer ring installing hole 102。
Eight, car mill
In the present embodiment, the car grinding process of centre circle 5 is substantially with embodiment 3, and its difference is: 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 finish turning finish turning I gear shaping (gear gear shaping) heat treatment (raceway quenching, Gear quenching, tempering) finish turning II line boring car mill, the specific process of the most each operation is:
One, rough turn
The rough turn processing technique of inner ring 8 is with reference to the rough turn processing of outer ring 1.
Two, half finish turning
In the present embodiment, half finish turning processing technique of inner ring 8 is substantially with embodiment 3, wherein, selects 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 the upper and lower circular arc of inner ring 8 Degree of depth 2mm of outer raceway junction raceway oil groove.
Three, finish turning I
In the present embodiment, the finish turning I processing technique of inner ring 8 is with embodiment 3.
Four, gear shaping (gear gear shaping)
In the present embodiment, the Gear Shaping technique of inner ring 8 is with embodiment 3.
Five, heat treatment (raceway quenching, gear quenching, tempering)
1, the quenching of the outer raceway of inner ring 8 circular arc: the quenching technical of the outer raceway of inner ring 8 circular arc is with reference to raceway in the circular arc of outer ring 1 Quenching technical.
2, after the outer raceway face of inner ring 8 circular arc has quenched, air cooling 6 hours, clamping inner ring 8 enters on Gear Quenching Equipment, according to The size of inner ring module, selects special gear surface quenching inducer, uses Medium frequency induction to inner ring 8 gear tooth table Face carries out Quenching Treatment, induction apparatus power 15KW, and quenching IF-FRE is that inner ring 8 is fixed during 8000Hz, and Quench heating Motionless, quenching inducer moves, in order to ensure the satisfied practicalities such as the hardness of inner ring 8 gear teeth, wearability and break resistance Requirement, the linear velocity that control sensor moves is 400mm/min, and distance 1.5mm between induction apparatus and gear tooth surface is quenched Fire concentration of medium 5%.Additionally, due to take turns, space width is less easily there is secondary quenching in quenching process, there is thermal stress, produces Change shape, and therefore, the present embodiment uses monodentate to be separated by the technique of quenching, and one tooth of i.e. one tooth quenches, a tooth quenching Again the tooth at interval is quenched after completing, thus ensure the bearing capacity of pivoting support.
3, after inner ring circular arc outer raceway, the surface hardening of gear position, carrying out temper, temper technological parameter is with outward Enclose raceway tempering process in 1 circular arc.
Six, finish turning II
The finish turning II technique of inner ring 8 is with the finish turning technique of centre circle 5.
Seven, line
After finish turning II process finishing, inner ring 8 rule, hole, car mill processing, its concrete technology is with reference to outer ring 1 Line, boring, car grinding process.
D, assembling
The assembly technology of the present embodiment is with 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 be: rough turn half finish turning heat treatment (raceway quenching) finish turning gear hobbing (snail Wheel gear hobbing) line boring car mill, the specific process of the most each operation is as follows:
One, rough turn
In the present embodiment, the rough turn processing technique of outer ring 1 is with embodiment 3.
Two, half finish turning
In the present embodiment, half finish turning processing technique of outer ring 1 is substantially with embodiment 3, and its difference is: the present embodiment selects Lathe rotating speed V=35r/min, feed F=25mm/min；In the circular arc of outer ring 1, raceway central diameter stays mill surplus a=0.9mm. After in the circular arc of outer ring 1, raceway processes, with oil groove cutter raceway junction processing raceway oil groove, raceway oil groove in upper and lower circular arc Width is steel ball size 1/4, the degree of depth is 2.5mm.
Three, heat treatment (raceway face quenching, tempering)
In the present embodiment, the Technology for Heating Processing operation of outer ring 1 is basic with embodiment 3, and its difference is: quenching inducer Power is 50KW, and quenching IF-FRE is 4500Hz, and control outer ring 1 rotate linear velocity be 180mm/min, and induction apparatus with In the circular arc of outer ring 1, the spacing between raceway face is 1.3mm, and the hardening media of the present embodiment is with embodiment 3, and its concentration is dilute through water After releasing it is.After in the circular arc of outer ring 1, raceway face completes quenching, air cooling 5 hours, it is sent into tempering box stove, selects temperature 190 DEG C to carry out Lonneal, tempering time is 3.5 hours, comes out of the stove after being tempered, and air cooling just can carry out the processing of next procedure after 7 hours
Four, finish turning
In the present embodiment, the finish turning technique of outer ring 1 is substantially with embodiment 3, and its difference essentially consists in: seal in the present embodiment The width 4mm of groove, degree of depth 5mm of seal groove.
Five, worm-gear toothing processing (worm gear hobbing)
In the present embodiment, the worm-gear toothing processing technique of outer ring 1 is with embodiment 3.
Six, line
In the present embodiment, the line technique of outer ring 1 is with embodiment 3.
Seven, boring, car mill
The boring of outer ring 1 in the present embodiment, car grinding process are substantially with embodiment 3, and its difference essentially consists in: in the present embodiment Boring fluted drill selection of speed 90r/min used, screw tap selects 100r/min, selects the rotating speed V=of machine tool chief axis during car mill 70r/min, selects feed F=26mm/min.
B, the technological process of centre circle 5 be: rough turn boring, bores half finish turning heat treatment (raceway quenching) finish turning Line boring car mill, the specific process of the most each operation is as follows:
One, rough turn
Taking annular blank as the rough turn processing processing raw material and carrying out centre circle 5, it is specifically processed with reference to the rough turn technique in outer ring 1.
Two, boring, brill
The boring of centre circle 5 in the present embodiment, brill processing technique are with embodiment 3.
Three, half finish turning
In the present embodiment, half finish turning processing technique of centre circle 5 is substantially with embodiment 3, and its difference is: 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 degree of depth of raceway junction raceway oil groove in the outer raceway junction of the upper and lower circular arc of centre circle 5 and upper and lower circular arc thereof 2.5mm。
Four, heat treatment (raceway Q-tempering)
Using Medium frequency induction raceway face outer to centre circle circular arc to carry out seriality quenching, IF-FRE is 6000Hz, in order to Serviceability after the quenching effect of the outer raceway of guarantee centre circle 5 circular arc and quenching thereof, controls arc raceway Surface heat-treatent parameter As follows: power 52KW, centre circle rotary speed 165mm/min, distance 1.4mm between induction apparatus and the outer raceway of centre circle circular arc, quench Fire concentration of medium 5%, after the outer raceway face of centre circle circular arc has quenched, air cooling 4 hours, then use Medium frequency induction to centre circle circular arc Interior raceway face carries out seriality quenching, and IF-FRE is 7000Hz, after the inside and outside raceway face of centre circle 5 circular arc all quenches, and air cooling 5 hours, being sent into tempering box stove, carry out lonneal, eliminated the thermal stress produced in quenching process, tempering process parameters is with outward Enclose the tempering process of raceway in 1 circular arc.
Five, finish turning
In the present embodiment, the finish turning processing of centre circle 5 is basic with embodiment 3, the wherein width 4mm of seal groove, seal groove deep Degree 5mm.
Six, line
In the present embodiment, the scribing operation of centre circle 5 is with embodiment 3.
Seven, boring
After line terminates, centre circle 5 being carried out Drilling operation, the processing technique of centre circle installing hole 501 is with outer ring installing hole 102。
Eight, car mill
In the present embodiment, the car grinding process of centre circle 5 is substantially with embodiment 3, and its difference is: 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 finish turning finish turning I gear shaping (gear gear shaping) heat treatment (raceway quenching, Gear quenching, tempering) finish turning II line boring car mill, the specific process of the most each operation is:
Two, rough turn
The rough turn processing technique of inner ring 8 is with reference to the rough turn processing of outer ring 1.
Two, half finish turning
In the present embodiment, half finish turning processing technique of inner ring 8 is substantially with embodiment 3, wherein, selects 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 the upper and lower circular arc of inner ring 8 Degree of depth 2.5mm of outer raceway junction raceway oil groove.
Three, finish turning I
In the present embodiment, the finish turning I processing technique of inner ring 8 is with embodiment 3.
Four, gear shaping (gear gear shaping)
In the present embodiment, the Gear Shaping technique of inner ring 8 is with embodiment 3.
Five, heat treatment (raceway quenching, gear quenching, tempering)
1, the quenching of the outer raceway of inner ring 8 circular arc: the quenching technical of the outer raceway of inner ring 8 circular arc is with reference to raceway in the circular arc of outer ring 1 Quenching technical.
2, after the outer raceway face of inner ring 8 circular arc has quenched, air cooling 5 hours, clamping inner ring 8 enters on Gear Quenching Equipment, according to The size of inner ring module, selects special gear surface quenching inducer, uses Medium frequency induction to inner ring 8 gear tooth table Face carries out Quenching Treatment, induction apparatus power 50KW, and quenching IF-FRE is that inner ring 8 is fixed during 3500Hz, and Quench heating Motionless, quenching inducer moves, in order to ensure the satisfied practicalities such as the hardness of inner ring 8 gear teeth, wearability and break resistance Requirement, the linear velocity that control sensor moves is 330mm/min, distance 2mm between induction apparatus and gear tooth surface, quenching Concentration of medium 5%.Additionally, due to take turns, space width is less easily there is secondary quenching in quenching process, there is thermal stress, produces Deformation, therefore, the present embodiment uses monodentate to be separated by the technique of quenching, and one tooth of i.e. one tooth quenches, and a tooth has quenched The tooth at interval is quenched by Cheng Houzai, thus ensures the bearing capacity of pivoting support.
3, after inner ring circular arc outer raceway, the surface hardening of gear position, carrying out temper, temper technological parameter is with outward Enclose raceway tempering process in 1 circular arc.
Six, finish turning II
The finish turning II technique of inner ring 8 is with the finish turning technique of centre circle 5.
Seven, line
After finish turning II process finishing, inner ring 8 rule, hole, car mill processing, its concrete technology is with reference to outer ring 1 Line, boring, car grinding process.
D, assembling
The assembly technology of the present embodiment is with embodiment 3.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, institute in accompanying drawing Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative Similar frame mode and embodiment, all should belong to protection scope of the present invention.

Claims (10)

1. a worm-gear type pivoting support for external tooth gyration in opposite directions in, including outer ring (1), centre circle (5) and inner ring (8), institute It is mounted on steel ball and spacing block in stating the raceway between outer ring (1) and centre circle (5) and between inner ring (8) and centre circle (5), its It is characterised by: on described outer ring (1), be machined with the outer ring gear teeth (101), inner ring (8) is machined with the inner ring gear teeth (801), and outer ring The gear teeth 101 use the worm-gear type gear teeth, and the inner ring gear teeth (801) use double diametral pitch formula gear teeth.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 1, it is characterised in that: institute The profile of tooth stating the outer ring gear teeth (101) uses involute profile.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 2, it is characterised in that: institute The modulus m stating the outer ring gear teeth (101) is 2.5～10, and tooth number Z takes 90～280, profile of tooth pressure angle α=20 °, modification coefficient x takes- 0.5～+0.5, helical pitch angle beta is 3 °～10 °.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 2, it is characterised in that: institute Stating the inner ring gear teeth (801) with double diametral pitch modular representations is DP2/DP1, and its parameters of structural dimension is calculated as follows: reference diameter D0 =25.4 × Z/DP2, height of teeth topHeight of teeth rootTip diameter Da=D0- 2ha, root diameter Df=D0-2hf；Wherein, gear teeth rises coefficientGear tip clearance coefficient C*=0.25, the gear teeth number of teeth The span of Z is 50～300, and x is modification coefficient.
5. according to the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions according to any one of claim 1-4, its It is characterised by: on the faying face between described outer ring (1), centre circle (5) and inner ring (8), equal correspondence is machined with seal groove, seal groove Sealing ring is inside installed.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 5, 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 this lip type sealing ring.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 6, it is characterised in that: institute The grooved stating the upper seal groove of outer ring (1), centre circle (5) and inner ring (8) is all processed as hyperbolic shape, and the shape of lip type sealing ring Shape and size all match with hyperbola seal groove.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 7, it is characterised in that: institute State the curvilinear equation x of hyperbola seal groove2/a2-y2/b2In=1, the span of real axis a is 5～15mm, the value of imaginary axis b Scope is 3～15mm.
9. according to the worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions according to any one of claim 1-4, its Being characterised by: described steel ball rolling channel is all processed as duplex circular ares profile race, the contact angle between steel ball and raceway is 45 °, and outer ring (1), after and assembling between centre circle (5), centre circle (5) and inner ring (8), all exist between its mutual raceway and steel ball between coordinating Gap, this fit clearance magnitude range is 0.10～0.30mm.
The worm-gear type pivoting support of a kind of interior external tooth gyration in opposite directions the most according to claim 9, it is characterised in that: All being machined with oil filler point (3) on described outer ring (1) and inner ring (8), oil filler point (3) is connected with steel ball rolling channel, and oil filler point (3) oil nozzle (2) is installed in.
CN201610600565.2A 2016-07-27 2016-07-27 A kind of worm-gear type pivoting support of the opposite rotary motion of interior external tooth Active CN105972093B (en)

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