CN102398222B - Single-channel high-speed rotating joint capable of conveying grinding fluid - Google Patents

Single-channel high-speed rotating joint capable of conveying grinding fluid Download PDF

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Publication number
CN102398222B
CN102398222B CN 201110137965 CN201110137965A CN102398222B CN 102398222 B CN102398222 B CN 102398222B CN 201110137965 CN201110137965 CN 201110137965 CN 201110137965 A CN201110137965 A CN 201110137965A CN 102398222 B CN102398222 B CN 102398222B
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China
Prior art keywords
shell
sleeve
sealing ring
joint
endoporus
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CN 201110137965
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Chinese (zh)
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CN102398222A (en
Inventor
李涛
余永泰
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YUNNAN FEILONG LAOER EQUIPMENT Co Ltd
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YUNNAN FEILONG LAOER EQUIPMENT Co Ltd
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Abstract

The invention discloses a single-channel high-speed rotating joint capable of conveying grinding fluid, which is mainly used for a milling machine tool for processing an optical element and a ceramic element. The invention adopts the main technical scheme that the joint has the following structures that a precise self-aligning ball bearing is arranged on an outer cylinder surface at the upper part of a lower sleeve; an outer ring of the self-aligning ball bearing is matched with an inner hole of a lower shell; an upper shell is connected with the lower shell; the lower end of an upper sleeve is inserted into an inner hole of the lower sleeve; three sealing rings are arranged on an outer cylinder surface of the upper sleeve and are matched with the inner hole of the lower sleeve to form a three-stage sealing cavity; and the upper end of the upper sleeve is fixed on the upper shell and is connected in parallel with an inserted right-angle connector. Probation proves that the defects of easily damaged structure and reduced cooling effect of an original joint are fundamentally overcome; the cooling quality of the rotating joint is effectively improved, the service life of the rotating joint is effectively prolonged, and the using requirement of the modern milling production on the rotating joint is met.

Description

A kind of one-way high-speed rotating joint that transmits grinding fluid
One, technical field
The present invention relates to a kind of swivel joint of lathe, be mainly used in the milling machine tool working of machining optical element, ceramic component.
Two, background technology
In the milling process of optical element, ceramic component and other non-metal workpiece, a large amount of diamond-impregnated wheels that use, in order to keep the cutting force of emery wheel, to add the chemicals with the bronze bonding agent function of corrosion in cooling fluid, along with bonding agent is corroded, diamond particles also constantly is shed in cooling fluid, although cooler bin has adopted centrifugal filtration, but the particle that still contains certain density bortz powder, glass dust, ceramic powder in cooling fluid, very short time cooling fluid just become grinding fluid.Glass, ceramic component milling for diameter D 〉=70mm, because the emery wheel rotating speed is high, if the burn phenomenon occurs in the cooling not enough meeting of part to be processed, only rely on the multichannel of part outside to spray not enough cooling, the grinding head shaft of rotation also must be made hollow-core construction, make grinding fluid can enter by grinding head shaft the inside machining area of emery wheel, the spray type of cooling in Here it is, to pass through cooling fluid in the grinding head shaft of rotation, produce wrapping phenomena for avoiding the outer carrier pipe road to rotate with the axis, just must install swivel joint additional.Swivel joint of the prior art generally adopts the balanced type hermetically-sealed construction, sees Fig. 1, and it is by rotating part I, and non-rotating part II, intermediate seal loop section III and spring section IV form.Balanced seal relies on external springs pressure to seal in swivel joint inside exactly, and the operating pressure of medium is smaller on the impact of sealing, flat seal normally, and two contact-making surfaces use spring compression by wear-resistant tungsten carbide made.Sealing ring is the main consumable accessory of swivel joint; when operation; sealing ring not only bears the frictional force that inner ring plate relative motion produces; but also to bear frictional force from outer tube and housing; if containing similar glass dust, bortz powder etc., the liquid medium that passes through has particle than heavy-duty grinding power; the wearing and tearing of tungsten carbide ring are very fast; in short time, drainage will appear; the cooling effect of reduction equipment; affect the normal use of equipment, cause shutting down, increasing maintenance and the maintenance cost of equipment.Therefore to produce actual needs in order satisfying, to fill up the blank in this field, is the technical problem anxious to be resolved of pendulum in face of us.
Three, summary of the invention
Main task of the present invention and purpose are under the use state, during by grinding fluid, to exist the hermetically-sealed construction rapid wear according to existing swivel joint, to the defective of milling machine tool working cooling effect decline.Design a kind of one-way high-speed rotating joint of novel transmitted grinding fluid.Fundamentally overcome hermetically-sealed construction rapid wear, the poor phenomenon of cooling effect, effectively improve and guarantee cooling quality and the service life of swivel joint.
Main technical schemes of the present invention: the structure of swivel joint is, a, rotating part, on the top external cylindrical surface of trapping, an accurate self-aligning ball bearing is housed, match with the endoporus of lower house in the outer ring of self-aligning ball bearing, to the endoporus of upper shell, two rubber framework grease seals have been installed above bearing, sealing ring 8 is equipped with in the bottom of trapping; B, non-rotating part, upper shell and lower house link together by four uniform soket head cap screws; C, annular seal space part, insert in the endoporus of trapping the lower end of upper cover, three sealing rings are housed on microcephaly's external cylindrical surface of upper cover, match with 6 the endoporus of trapping and form three grades of annular seal spaces, the upper end of upper cover is fixed on upper shell by three soket head cap screws on the one hand, sealing ring is housed, on the other hand by plug-in type angle coupling of thread connection on faying face.
The present invention proves by practical probation: reach the development purpose fully, 1, milling machine tool working in the situation that 4500 rev/mins by grinding fluid, more than continuous operation half a year, seal structure damage do not occur, leak and phenomenon that cooling effect descends.And common swivel joint is when this type of grinding fluid, and general 7 days just begin to occur leaking, and constantly aggravation, can not use about 30 days; 2, the sealing part abrasion repair and replacement are simple, as long as take down support, upper cover just can whole be extracted from trap, and after again changing three sealing rings, just can continue to use during insertion is trapped; 3, obviously increase work efficiency, satisfy modern milling production to the instructions for use of swivel joint.
Four, description of drawings
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the general principles sketch of one-way high-speed rotating joint in prior art.
Fig. 2 is assembly structure figure of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is upper cover 13 part drawings of the present invention.
Fig. 5 is 6 part drawings of trapping of the present invention.
Fig. 6 is operation principle schematic diagram of the present invention.
Five, the specific embodiment
The present invention partly is comprised of a rotating part, b non-rotating part, c annular seal space.By plug-in type angle coupling 1, sealing ring 2, rubber framework grease seal 3, accurate self-aligning ball bearing 4, sealing ring 5, trap 6, revolving hollow spindle is 7, sealing ring 8, lower house 9, upper shell 10, soket head cap screw 11, connection bracket 12, upper cover 13, soket head cap screw 14 etc. form.
With reference to Fig. 2,3, main technical schemes of the present invention is described: the structure of swivel joint is, a, rotating part, on 6 the top external cylindrical surface of trapping, an accurate self-aligning ball bearing 4 is housed, matching with the endoporus of lower house 9 in the outer ring of self-aligning ball bearing, to the endoporus of upper shell 10, two rubber framework grease seals 3 has been installed above bearing 4, and sealing ring 8 is equipped with in 6 the bottom of trapping; B, non-rotating part, upper shell 10 and lower house 9 link together by four uniform soket head cap screws 11; C, annular seal space part, the microcephaly of upper cover 13 inserts in 6 the endoporus of trapping, three sealing rings 5 are housed on microcephaly's external cylindrical surface of upper cover 13,6 endoporus matches with trapping, form three grades of annular seal spaces, the upper end of upper cover 13 is fixed on upper shell 10 by three soket head cap screws 14 on the one hand, and sealing ring 2 is housed on faying face, be threaded connection on the other hand a plug-in type angle coupling 1
With reference to Fig. 2,3, the present invention's special-purpose parts and components of metal used all adopts the rustless steel material to produce.Described accurate self-aligning ball bearing 4 belongs to standard component, and its effect is to adjust upper and lower cover 13, the 6 non-perpendicularity errors of installing; Described sealing ring 8,5,2 is O-ring seals, belongs to standard component, and its effect is that when preventing work, grinding fluid overflows; Described three grades of annular seal spaces, its effect is the service life that increases swivel joint, and when bottom sealing ring lost efficacy, middle sealing ring sealed, when the intermediate seal circle lost efficacy again, the sealing ring of upper end seals, and after three sealing rings all lost efficacy, takes off equipment supporter 12, unclamp screw 14, upper cover 13 just can be whole be extracted 6 from trapping, and after again changing three sealing rings, then inserts to trap and just can reuse in 6; Described two rubber framework grease seals 3 belong to standard component, and its effect is the accurate self-aligning ball bearing of protection; Described plug-in type angle coupling 1, its effect are the inputs of grinding fluid.
With reference to Fig. 2,6, operation principle of the present invention: at first swivel joint 19 is tightened up with equipment supporter 12 by screw and be connected, then be 7 to be connected with the revolving hollow spindle by screw thread and lathe of trapping of the rotating part of joint.During work, the revolving hollow spindle of only trapping with lathe is 7 rotations, grinding fluid 17 is input in the angle coupling of joint by pipeline, again by the non-rotating part endoporus flow into rotating part endoporus in, then enter revolving hollow spindle and be 7 pipeline, be ejected at last on the contact-making surface of workpiece to be machined 15 and emery wheel 16, realize that internal combustion is cooling.If inside and outside cooling when all needing, open the outer cooling tube 18 that sprays, carry out inside and outside simultaneously cooling.

Claims (1)

1. one-way high-speed rotating joint that can transmit grinding fluid, it is characterized in that: swivel joint is comprised of plug-in type angle coupling (1), the first sealing ring (2), rubber framework grease seal (3), accurate self-aligning ball bearing (4), the second sealing ring (5), trap (6), revolving hollow spindle system (7), the 3rd sealing ring (8), lower house (9), upper shell (10), the first soket head cap screw (11), connection bracket (12), upper cover (13), the second soket head cap screw (14), and its concrete structure is:
A, rotating part, on the top external cylindrical surface of (6) of trapping, an accurate self-aligning ball bearing (4) is housed, match with the endoporus of lower house (9) in the outer ring of self-aligning ball bearing, two rubber framework grease seals (3) have been installed in top at bearing (4) to the endoporus of upper shell (10), the 3rd sealing ring (8) is equipped with in the bottom of trap (6);
B, non-rotating part, upper shell (10) and lower house (9) link together by four uniform the first soket head cap screws (11);
C, annular seal space part, the microcephaly of upper cover (13) inserts in the endoporus of trap (6), three the second sealing rings (5) are housed on microcephaly's external cylindrical surface of upper cover (13), match with the endoporus of trap (6), form three grades of annular seal spaces, the upper end of upper cover (13) is fixed on upper shell (10) by three the second soket head cap screws (14) on the one hand, and the first sealing ring (2) is housed on faying face, is threaded connection on the other hand a plug-in type angle coupling (1).
CN 201110137965 2011-05-26 2011-05-26 Single-channel high-speed rotating joint capable of conveying grinding fluid Active CN102398222B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110137965 CN102398222B (en) 2011-05-26 2011-05-26 Single-channel high-speed rotating joint capable of conveying grinding fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110137965 CN102398222B (en) 2011-05-26 2011-05-26 Single-channel high-speed rotating joint capable of conveying grinding fluid

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CN102398222A CN102398222A (en) 2012-04-04
CN102398222B true CN102398222B (en) 2013-06-05

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056780B (en) * 2013-01-23 2016-02-24 王敬达 The method and apparatus of swivel joint conveying liquid abrasive material
CN103072083A (en) * 2013-01-23 2013-05-01 乳山市宏远机床制造有限公司 Ceramic seal cooling water inlet structure
CN103465182A (en) * 2013-09-03 2013-12-25 宇环数控机床股份有限公司 Polishing wheel with liquid distribution device
JP2019013989A (en) * 2017-07-04 2019-01-31 株式会社ディスコ Grinder
CN109210301A (en) * 2017-12-03 2019-01-15 中国航空工业集团公司北京航空精密机械研究所 A kind of rotary joint device for gas circuit transmission

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001065760A (en) * 1999-08-23 2001-03-16 Rix Corp Bearing structure of rotary joint
JP2001124273A (en) * 1999-10-26 2001-05-11 Rix Corp Mechanical seal lubrication structure of rotary joint
JP2004084691A (en) * 2002-08-22 2004-03-18 Eagle Ind Co Ltd Rotary joint
CN101169204A (en) * 2006-10-27 2008-04-30 沈阳吉盛东科技有限公司 Multipurpose high speed rotation communicating joint
CN202106308U (en) * 2011-05-26 2012-01-11 云南飞隆劳尔设备有限公司 One-way high-speed rotating joint capable of transferring grinding fluid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001065760A (en) * 1999-08-23 2001-03-16 Rix Corp Bearing structure of rotary joint
JP2001124273A (en) * 1999-10-26 2001-05-11 Rix Corp Mechanical seal lubrication structure of rotary joint
JP2004084691A (en) * 2002-08-22 2004-03-18 Eagle Ind Co Ltd Rotary joint
CN101169204A (en) * 2006-10-27 2008-04-30 沈阳吉盛东科技有限公司 Multipurpose high speed rotation communicating joint
CN202106308U (en) * 2011-05-26 2012-01-11 云南飞隆劳尔设备有限公司 One-way high-speed rotating joint capable of transferring grinding fluid

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