CN100534706C - Liquid-immersible numerical control rotary table - Google Patents
Liquid-immersible numerical control rotary table Download PDFInfo
- Publication number
- CN100534706C CN100534706C CNB2007100506742A CN200710050674A CN100534706C CN 100534706 C CN100534706 C CN 100534706C CN B2007100506742 A CNB2007100506742 A CN B2007100506742A CN 200710050674 A CN200710050674 A CN 200710050674A CN 100534706 C CN100534706 C CN 100534706C
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- turntable seat
- turntable
- ring
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 238000007598 dipping method Methods 0.000 claims description 34
- 238000007514 turning Methods 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000001514 detection method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Machine Tool Units (AREA)
Abstract
The invention discloses a liquid-immersible numerical control turntable which comprises a turntable base, a rotating shaft, a pressure ring, a turntable support ring, a servo motor and an O-shaped sealing ring. The rotating shaft of the rotary table is arranged at the center of the rotary table, the rotary table seat is fixedly arranged on the rotary table support ring, and the motor seat is fixedly arranged on the rotary table seat. The servo motor is fixed on the motor cabinet, and the motor shaft passes through the shaft coupling and is connected with the rotation axis, and the rotation axis supports and is driven by servo motor rotatory through the bearing that sets up in the revolving stage seat. The invention realizes dynamic and static sealing of the clearance of parts in the turntable by arranging the sealing ring, and can better meet the use requirements of sealing performance, high precision, reliable work and the like of the rotating parts in various liquid environments by arranging the annular groove and the liquid discharge connector on the turntable seat. The invention has simple manufacturing process, short transmission chain and good protection performance.
Description
Technical field
The invention belongs to and be combined in or be disposed at or be exclusively used in relevant work operative turntable of lathe or rotating disk field specially, be specifically related to a kind of liquid dipping numerical control turning table.
Background technology
In fields such as machine-building, accurate detections, often need some can be operated in whirligig in the liquid environment, as the cutting fluid environment of machining, the water environment of Ultrasonic Detection etc., this just requires this device to have excellent sealing performance.If protection is not in place, will cause component of machine and motor to damage.
The structure great majority that numerical control liquid soaks the turntable product are to adopt servomotor to drive the structure of turntable rotation to liquid level bottom transferring power from liquid level top by worm gear, worm screw or synchronous band.The manufacturing process complexity of this numerical control rotating platform is had relatively high expectations to manufacture level.At present the level of this series products differs bigger, and its reason just is the difference of manufacturing capacity and level, most critical be that the manufacture difficulty of key components and parts such as worm gear, worm screw, synchronous pulley is big and technology is complicated; Because driving-chain is longer, and the transmission accuracy of turntable is subjected to very big influence because of the accuracy of manufacture of crucial driving member, precision is difficult to improve on the other hand.
Summary of the invention
The purpose of this invention is to provide a kind of liquid dipping numerical control turning table.Liquid dipping numerical control turning table can satisfy on the engineering of various liquid environments is used user demands such as good seal to rotary part, high accuracy, reliable operation preferably, and manufacturing process is simple, driving-chain is short, barrier propterty is good.
The present invention adopt servomotor directly the mode of driving drive turntable, only some is immersed in the liquid medium liquid dipping numerical control turning table when working in using system, guarantee the liquid medium turntable inside of not bleeding by dynamic and static sealings at different levels and discharge opeing two-stage safeguard procedures, avoid turntable machinery and electric component produced and destroy.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of liquid dipping numerical control turning table is provided, includes turntable seat, pressure ring, rotating shaft, pressurizing nut, pressing spring, turret supports ring, motor cabinet, servomotor and O RunddichtringO, bearing, bearing (ball) cover.Turntable seat profile is made up of two different cylinders of diameter up and down, and cylindrical portions may evenly is provided with several tapped through holes and a screwed hole above the turntable seat, is provided with two bearings in the turntable seat.The turntable seat is fixedly installed on the turret supports ring, rotating shaft is arranged on the center of turntable seat and turret supports ring, be provided with top bearing cover and lower bearing end cap between turntable seat and the rotating shaft, top bearing cover is connected with the turntable seat by screw respectively with the lower bearing end cap.Servomotor is fixed on the motor cabinet by screw, and motor cabinet is fixedly connected on the turntable seat by screw.The motor shaft of servomotor is connected with rotating shaft by shaft coupling, rotating shaft is by two bearings that are arranged in the turntable seat, and by the servomotor driven rotary, the nut that is arranged on the rotating shaft is tightened by screw thread and rotating shaft, prevents the axial float of rotating shaft.Cylindrical portions may is provided with belt groove above in the turntable seat, is connected with discharge opeing on the screwed hole that is provided with in the ring-shaped groove and connects mouth.Be provided with the O RunddichtringO between rotating shaft and the top bearing cover, be provided with the O RunddichtringO between rotating shaft and the lower bearing end cap, be provided with the O RunddichtringO between turret supports ring and the rotating shaft, be provided with pressure ring between turntable seat and O RunddichtringO, pressure ring directly contacts with the O RunddichtringO.Equally distributed tapped through hole is provided with pressurizing nut on the turntable seat, is provided with pressing spring in the pressurizing nut, and pressing spring supports pressure ring.Described turntable seat, turret supports ring, pressure ring and rotating shaft are coaxial setting.Described O RunddichtringO is supported by pressure ring, and pressure ring is supported by pressing spring.The number of the tapped through hole that evenly is provided with on the described turntable seat is 3~8.
The rotating shaft of liquid dipping numerical control turning table of the present invention by be installed in the turntable seat two bearings and by the servomotor driven rotary, two bearings are by the turntable seat and the metal (upper end cap is spacing and the location, rotating shaft axially and radially spacingly realize by nut and bearing.Work top and rotating shaft are made as one, and the upper surface of rotating shaft is work top, can be used for clamping workpiece.
Liquid dipping numerical control turning table of the present invention is by realizing that to the gap between parts in the turntable dynamic and static sealing constitutes the one-level protection with the sealing ring sealing.Anti-leak movable sealing between inner rotating shaft of turntable and the turret supports ring and rotating shaft and bearing the grease lubrication movable sealing between the end cap are up and down all realized by the O RunddichtringO; Contact-making surface anti-leak static seal also adopts the O RunddichtringO between the work tank base plate in turret supports ring and the using system, thereby has guaranteed that liquid does not bleed in the turntable.In order to reduce because anti-leak dynamic seal ring wearing and tearing cause the generation of the bad and leakage situation of sealing property between the rotation composition surface, by pressure ring sealing ring is applied precompression with equally distributed several pressing spring, and the elasticity of utilizing pressing spring self adaptation in to a certain degree guarantees the sealing property between sealing ring and rotating shaft rotation composition surface, the size that can regulate precompression by the adjusting pressurizing nut.
Liquid dipping numerical control turning table of the present invention has ring-shaped groove in turntable seat inside, have screwed hole on the ring-shaped groove, screwed hole is connected with discharge opeing and connects mouth and be used for secondary protection, when a small amount of leakage appears in the damage of the O RunddichtringO between rotating shaft and the turret supports ring, can connect mouth by discharge opeing after the liquid of seepage bleeds in the ring-shaped groove and be discharged to the turntable outside rapidly, thereby guarantee not damage the rotary part of turntable, and can in time find the turntable seal failure by the situation of discharging leakage, be convenient to the care and maintenance of turntable.
Liquid dipping numerical control turning table of the present invention, servomotor and turntable height is integrated, adopt servomotor directly to drive to finish and rotatablely move.Liquid dipping numerical control turning table of the present invention, part is easily processed, and manufacturing process is simple, and driving-chain is short, and positioning accuracy is higher.Owing to be that servomotor directly drives, do not have middle gearing friction pair, so precision stability is better simultaneously.Liquid dipping numerical control turning table of the present invention has the favorable protection performance, and good seal performance, size are little, easy for installation, are suitable in the liquid environment and use.
Description of drawings
Fig. 1 is a liquid dipping numerical control turning table cross-sectional view of the present invention
Fig. 2 is the front view of liquid dipping numerical control turning table turntable seat of the present invention
Fig. 3 is the vertical view of liquid dipping numerical control turning table turntable seat of the present invention
Fig. 4 is the front view of liquid dipping numerical control turning table rotating shaft of the present invention
Fig. 5 is the cutaway view of liquid dipping numerical control turning table motor cabinet of the present invention
Fig. 6 is the cutaway view of liquid dipping numerical control turning table turret supports ring of the present invention
Fig. 7 is the cutaway view of liquid dipping numerical control turning table pressure ring of the present invention
Fig. 8 is the front view of the embodiment of the invention in five-shaft numerical control water logging supersonic detection device is used
Fig. 9 is the vertical view of the embodiment of the invention in five-shaft numerical control water logging supersonic detection device is used
Among the figure, screw (1,2,6,22,24) 3. turntable seat 4. pressure rings 5. an O RunddichtringO 7. top bearing covers 8. the 2nd O RunddichtringO 9. rotating shaft bearings (10,16) 11. discharge opeings connect mouth 12. pressurizing nuts 13. pressing spring 14. turret supports rings 15. the 3rd O RunddichtringO 17. nuts 18. the 4th O RunddichtringO 19. lower bearing end caps 20. shaft couplings 21. motor cabinets 23. servomotors 25. linear axis X-axis 26. linear axis Y-axis 28. detected workpiece 29. swinging axle B axles 30. linear axis Z axles 31. ultrasonic probes 32. work tank base plates 33. work tanks 34. lathe bases 35. tapped through holes 36. screwed holes
The specific embodiment
Below in conjunction with drawings and Examples the present invention is explained in detail.
The present invention adopts the straight type of drive of servomotor to drive turntable, and during work, only some is immersed in the liquid medium turntable, and the motor section branch is located at outside the work nest, by dynamic and static sealing and discharge opeing setting liquid medium is not bled in the turntable.
Embodiment
In Fig. 1~7, liquid dipping numerical control turning table of the present invention includes turntable seat 3, pressure ring 4, rotating shaft 9, pressurizing nut 12, pressing spring 13, turret supports ring 14, motor cabinet 21, servomotor 23 and a plurality of O RunddichtringO, bearing, bearing (ball) cover.Described turntable seat 3 profiles are made up of two different cylinders of diameter up and down, and turntable seat 3 top cylindrical portions may evenly are provided with eight pressurizing nuts usefulness tapped through holes 35 and a screwed hole 36, are provided with bearing (10,16) in turntable seat 3.Turntable seat 3 is fixedly installed on the turret supports ring 14, rotating shaft 9 is arranged on the center of turntable seat 3 and turret supports ring 14, be provided with top bearing cover 7 and lower bearing end cap 19 between turntable seat 3 and the rotating shaft 9, top bearing cover 7 is connected with turntable seat 3 by several screws 24 respectively with lower bearing end cap 19.Servomotor 23 is fixed on the motor cabinet 21 by screw 22, and motor cabinet 21 is fixedly connected on the turntable seat 3 by screw 6.The motor shaft of servomotor 23 is connected with rotating shaft 9 by shaft coupling 20, rotating shaft 9 is supported by the bearing 10 and the bearing 16 that are arranged in the turntable seat 3, and by servomotor 23 driven rotary, the nut 17 that is arranged on the rotating shaft 9 is tightened by screw thread and rotating shaft 9, prevents the axial float of rotating shaft 9.Cylindrical portions may is provided with belt groove above in turntable seat 3, is connected with discharge opeing on the screwed hole 36 that is provided with in the ring-shaped groove and connects mouth 11.Be provided with the 2nd O RunddichtringO 8 between rotating shaft 9 and the top bearing cover 7, be provided with the 4th O RunddichtringO 18 between rotating shaft 9 and the lower bearing end cap 19, be provided with an O RunddichtringO 5 between turret supports ring 14 and the rotating shaft 9, be provided with pressure ring 4 between a turntable seat 3 and an O RunddichtringO 5, pressure ring 4 directly contacts with an O RunddichtringO 5.In turret supports ring 14, be provided with the 3rd O RunddichtringO 15.Equally distributed tapped through hole 35 is provided with pressurizing nut 12 on the turntable seat 3, is provided with pressing spring 13 in the pressurizing nut 12, and pressing spring 13 supports pressure ring 4.Described turntable seat 3, turret supports ring 14, pressure ring 4 and rotating shaft 9 are coaxial setting.A described O RunddichtringO 5 is supported by pressure ring 4, and pressure ring 4 is supported by pressing spring 13, and pressing spring 12 applies precompression by pressurizing nut 12.
The tapped through hole that is provided with on the turntable seat in the liquid dipping numerical control turning table of the present invention generally is no less than 3, tapped through hole be set to 6 more suitable.
Fig. 9 and Figure 10 are respectively master, the vertical view of the embodiment of the invention in five-shaft numerical control water logging supersonic detection device is used.Five-shaft numerical control water logging supersonic detection device belongs to the five-shaft numerical control device, comprise lathe base 34, work tank 33 and three linear axis X-axis 25, Y-axis 26, Z axle 30, swinging axle B axle 29 around X-axis 25 swings, liquid dipping numerical control turning table of the present invention is as a rotating shaft C axle of five-shaft numerical control water logging supersonic detection device.The turret supports ring 14 of liquid dipping numerical control turning table is connected and fixed by screw 1 with the work tank base plate 32 of five-shaft numerical control water logging ultrasonic detection device.
Five-shaft numerical control water logging supersonic detection device is working media with water, water is contained in the work tank 33, the upper table surface of liquid dipping numerical control turning table of the present invention is placed detected workpiece 28, the upper table surface of liquid dipping numerical control turning table, turret supports ring 14 all are immersed in the water with detected workpiece 28 during work, ultrasonic probe 31 is driven near detected workpiece 28 by X-axis 25, Y-axis 26, Z axle 30 and swinging axle B axle 29, and the ultrasonic wave that utilizes ultrasonic probe 31 to send detects whether defectiveness of tested workpiece inside.Liquid dipping numerical control turning table drives the detected workpiece 28 that is immersed in the tank 33 and realizes 360 ° of rotations during work, so just can realize the measurement of whole work-piece.Show that by using on this homemade five-shaft numerical control water logging supersonic detection device liquid dipping numerical control turning table of the present invention has satisfied designing requirement fully, long-play does not have leakage, has higher functional reliability.
At different characteristics of liquids, liquid dipping numerical control turning table sealing ring and parts material that the present invention makes also should be made different selections, to satisfy the application demand under oil, water and other corrosive liquids situations, guarantee reliably working.
Liquid dipping numerical control turning table of the present invention also available handwheel etc. replaces driven by servomotor, thereby becomes manual turntable.
When liquid dipping numerical control turning table of the present invention is exported when the needs high pulling torque, can replace servomotor with torque motor.
Liquid dipping numerical control turning table of the present invention can be provided with round grating in liquid dipping numerical control turning table inside and carry out position measurement and constitute closed-loop control with digital control system, thereby further improve position control accuracy when position accuracy demand is high especially.
Claims (2)
1. a liquid dipping numerical control turning table comprises turntable seat (3), pressure ring (4), rotating shaft (9), pressurizing nut (12), pressing spring (13), turret supports ring (14), motor cabinet (21), servomotor (23) and O RunddichtringO, bearing, bearing (ball) cover; Described turntable seat (3) profile is made up of two different cylinders of diameter up and down, and cylindrical portions may is provided with a screwed hole (36) and several equally distributed tapped through holes (35) above the turntable seat (3), is provided with bearing (10,16) in turntable seat (3); Turntable seat (3) is fixedly installed on the turret supports ring (14), rotating shaft (9) is arranged on the center of turntable seat (3) and turret supports ring (14), be provided with top bearing cover (7) and lower bearing end cap (19) between turntable seat (3) and the rotating shaft (9), top bearing cover (7) is connected with turntable seat (3) by screw respectively with lower bearing end cap (19); Servomotor (23) is fixed on the motor cabinet (21) by screw (22), and motor cabinet (21) is fixedly connected on the turntable seat (3) by screw (6); The motor shaft of servomotor (23) is connected with rotating shaft (9) by shaft coupling (20), and rotating shaft (9) is supported by the bearing (10,16) that is arranged in the turntable seat (3), and the nut (17) that is arranged on the rotating shaft (9) is tightened by screw thread and rotating shaft (9); The top cylindrical portions may is provided with belt groove in turntable seat (3), and the screwed hole (36) that is provided with in the ring-shaped groove is connected with discharge opeing and connects mouth (11); Be provided with the 2nd O RunddichtringO (8) between rotating shaft (9) and the top bearing cover (7), be provided with the 4th O RunddichtringO (18) between rotating shaft (9) and the lower bearing end cap (19), be provided with an O RunddichtringO (5) between turret supports ring (14) and the rotating shaft (9), be provided with pressure ring (4) between a turntable seat (3) and an O RunddichtringO (5), pressure ring (4) directly contacts with an O RunddichtringO (5); In turret supports ring (14), be provided with the 3rd O RunddichtringO (15); Turntable seat (3) is gone up equally distributed tapped through hole (35) and is provided with pressurizing nut (12), is provided with pressing spring (13) in the pressurizing nut (12), and pressing spring (13) supports pressure ring (4); Described turntable seat (3), turret supports ring (14), pressure ring (4) and rotating shaft (9) are coaxial setting.
2. liquid dipping numerical control turning table according to claim 1 is characterized in that: the number that described turntable seat (3) is gone up the tapped through hole (35) that evenly is provided with is 3~8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100506742A CN100534706C (en) | 2007-11-29 | 2007-11-29 | Liquid-immersible numerical control rotary table |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100506742A CN100534706C (en) | 2007-11-29 | 2007-11-29 | Liquid-immersible numerical control rotary table |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101239440A CN101239440A (en) | 2008-08-13 |
CN100534706C true CN100534706C (en) | 2009-09-02 |
Family
ID=39931423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2007100506742A Expired - Fee Related CN100534706C (en) | 2007-11-29 | 2007-11-29 | Liquid-immersible numerical control rotary table |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100534706C (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102416511B (en) * | 2011-05-18 | 2013-08-21 | 北京市电加工研究所 | Total immersion liquid numerical control turntable for electric spark machine tool |
CN102581408A (en) * | 2012-03-21 | 2012-07-18 | 苏州电加工机床研究所有限公司 | Sealing structure of fully-immersed numerically controlled rotating table for electrical processing machine tool and sealing method thereof |
CN104227163B (en) * | 2014-02-21 | 2017-02-08 | 北京市电加工研究所 | Torque motor direct-driven full immersion rotary table |
CN104858673B (en) * | 2015-05-08 | 2017-09-12 | 江苏新瑞重工科技有限公司 | High rotating speed carries torque turntable bearing arrangement again |
CN111911625B (en) * | 2020-08-19 | 2022-02-18 | 南京工业职业技术学院 | Self-adaptive shaft seal mechanism and mounting method thereof |
CN113091663B (en) * | 2021-03-25 | 2022-11-29 | 中国航发南方工业有限公司 | Water immersion ultrasonic geometric accuracy calibration system |
CN113681485B (en) * | 2021-09-17 | 2023-02-10 | 奥瑞视(北京)科技有限公司 | Revolving stage is used in ultrasonic wave water logging detection |
CN114055341B (en) * | 2021-11-16 | 2024-07-02 | 上海发那科机器人有限公司 | Be applied to waterproof revolving stage of wet-type polishing scene |
CN115255524B (en) * | 2022-09-28 | 2023-06-06 | 山东豪迈机械科技股份有限公司 | Numerical control rotary table and numerical control machine tool |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5676360A (en) * | 1995-07-11 | 1997-10-14 | Boucher; John N. | Machine tool rotary table locking apparatus |
CN2627288Y (en) * | 2002-03-25 | 2004-07-21 | 中国石化胜利油田有限公司桩西采油厂 | Hydraulic tuntable rotation sealing arrangement |
CN2709768Y (en) * | 2004-04-29 | 2005-07-13 | 巨普科技股份有限公司 | Rotation stand of monitor |
CN2793509Y (en) * | 2005-05-18 | 2006-07-05 | 姜启罗 | Small built-in precisive rotary table |
CN200975213Y (en) * | 2006-02-09 | 2007-11-14 | 黄善治 | Self-lubricating and sealed type slewing table apparatus |
CN201120550Y (en) * | 2007-11-29 | 2008-09-24 | 中国工程物理研究院机械制造工艺研究所 | Liquid-immersible numerical control rotary table |
-
2007
- 2007-11-29 CN CNB2007100506742A patent/CN100534706C/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5676360A (en) * | 1995-07-11 | 1997-10-14 | Boucher; John N. | Machine tool rotary table locking apparatus |
CN2627288Y (en) * | 2002-03-25 | 2004-07-21 | 中国石化胜利油田有限公司桩西采油厂 | Hydraulic tuntable rotation sealing arrangement |
CN2709768Y (en) * | 2004-04-29 | 2005-07-13 | 巨普科技股份有限公司 | Rotation stand of monitor |
CN2793509Y (en) * | 2005-05-18 | 2006-07-05 | 姜启罗 | Small built-in precisive rotary table |
CN200975213Y (en) * | 2006-02-09 | 2007-11-14 | 黄善治 | Self-lubricating and sealed type slewing table apparatus |
CN201120550Y (en) * | 2007-11-29 | 2008-09-24 | 中国工程物理研究院机械制造工艺研究所 | Liquid-immersible numerical control rotary table |
Also Published As
Publication number | Publication date |
---|---|
CN101239440A (en) | 2008-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100534706C (en) | Liquid-immersible numerical control rotary table | |
CN201120550Y (en) | Liquid-immersible numerical control rotary table | |
CN210024594U (en) | Normally closed type oil pressure brake device and multi-shaft combined special machine with same | |
CN101549461A (en) | Compound type rotary supporting device for machine tool round workbench | |
CN102145475B (en) | Ball crusher with double-rotor hydrostatic bearing structure | |
CN103821942A (en) | Double mechanical sealing method and double mechanical sealing device for kettle gas films | |
CN106112571A (en) | A kind of numerical-control equal-division rotary table | |
CN206206593U (en) | Combined mechanical sealing device and side-feeding mixer | |
CN210950311U (en) | Bidirectional air-float rotary joint | |
CN102029527B (en) | Constant flow static pressure working table for gear shaping machine or gear milling machine | |
CN116787174A (en) | Ultra-precise hydrostatic bearing turntable | |
CN114273972B (en) | Two-piece tooth-type indexing table based on worm gear and worm gear composite transmission | |
CN203003494U (en) | Turntable slewing structure of machine tool | |
CN109551261B (en) | Rotary exchanging workbench | |
CN2221111Y (en) | Valve flow-metering high pressure axial plunger pump | |
CN108746709B (en) | A method of extending radial drilling machine robustness | |
CN207127352U (en) | A kind of high-precision table top of gear grinding machines | |
US3747943A (en) | Device for packing a shaft passing through a wall | |
CN105570481A (en) | Moving and static conversion device for high-pressure gas path | |
CN110116370A (en) | Hydrostatic profile high-precision rotary indexing means | |
CN210147596U (en) | Oil pressure brake equipment and have device's multiaxis combination special plane | |
CN1372087A (en) | Leakage free speed reducer for still | |
CN213271288U (en) | Speed increaser structure for multi-rotary machine | |
CN215293455U (en) | Transmission mechanism of high-precision rotary table | |
CN218082581U (en) | Bevel gear transmission turntable |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20151129 |