CN110469585A - A kind of air-bearing that large-size horizontal numerical control scale-division disk uses - Google Patents
A kind of air-bearing that large-size horizontal numerical control scale-division disk uses Download PDFInfo
- Publication number
- CN110469585A CN110469585A CN201910874995.7A CN201910874995A CN110469585A CN 110469585 A CN110469585 A CN 110469585A CN 201910874995 A CN201910874995 A CN 201910874995A CN 110469585 A CN110469585 A CN 110469585A
- Authority
- CN
- China
- Prior art keywords
- groove
- sealing
- air bearing
- sealing ring
- numerical control
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 238000007373 indentation Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
-
- 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
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0607—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being retained in a gap, e.g. squeeze film bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
本发明公开了一种大型卧式数控分度盘使用的气浮轴承，包括本体，所述本体的中心位置转动设置有旋转芯轴，所述旋转芯轴的顶端设置有延伸盘，所述延伸盘的顶部设置有盘面，所述本体的内侧相对于旋转芯轴的一侧设置有内陷槽，所述内陷槽的边缘固定设置有密封压环，所述密封压环的底部与内陷槽之间设置有第二密封圈，在本发明中设计了气浮轴承结构，解决了大型转台使用大轴承导致的成本增高的问题，让大型转台搭配使用中小型轴承和气浮轴承的组合方式成倍数提高转台的负载能力，并用气浮轴承结构作为常规轴承的保护，使常规轴承寿命延长，以此来降低转台制造成本，延长转台寿命。
The invention discloses an air bearing used for a large-scale horizontal numerical control indexing table, which comprises a body, a rotating mandrel is arranged at the central position of the body, and an extension disc is arranged at the top of the rotating mandrel. The top of the disk is provided with a disk surface, and the inner side of the body is provided with an indentation groove relative to the side of the rotating mandrel. The edge of the inversion groove is fixedly provided with a sealing pressure ring, and the bottom of the sealing pressure ring is indented with the indentation There is a second sealing ring between the grooves, and the air bearing structure is designed in the present invention, which solves the problem of high cost caused by the use of large bearings for large turntables, and allows large turntables to be combined with small and medium-sized bearings and air bearings. The load capacity of the turntable is increased multiple times, and the air bearing structure is used as the protection of the conventional bearing to prolong the life of the conventional bearing, thereby reducing the manufacturing cost of the turntable and prolonging the life of the turntable.
Description
技术领域technical field
本发明属于卧式数控分度盘技术领域，具体涉及一种大型卧式数控分度盘使用的气浮轴承。The invention belongs to the technical field of horizontal numerical control indexing discs, and in particular relates to an air bearing used in a large horizontal numerical control indexing disc.
背景技术Background technique
在机床行业内，大型卧式分度盘的规格通常随着机床三轴行程的增大而相应增大，卧式分度盘的规格增加其相应的额定载重也在增大；通常情况下1000x1000卧式转台额定载重5~6吨左右，1400x1600卧式转台额定载重8~10吨左右，1600x1800卧式转台额定载重12~15吨左右，而2000x2000卧式转台额定载重要达到20~25吨左右；卧式转台的载重增大，其内部的支撑轴承的额定载荷也需要增大，轴承型号越大其加工难度越大，精度越难控制，成本越高，甚至有一大部分轴承需要依赖进口国外的轴承，这样直接导致卧式转台的制造成本直线升高，转台售价偏高，造成使用的成本增大。In the machine tool industry, the specifications of the large horizontal indexing table usually increase correspondingly with the increase of the three-axis travel of the machine tool, and the corresponding rated load increases as the specification of the horizontal indexing table increases; usually 1000x1000 The rated load of the horizontal turntable is about 5~6 tons, the rated load of the 1400x1600 horizontal turntable is about 8~10 tons, the rated load of the 1600x1800 horizontal turntable is about 12~15 tons, and the rated load of the 2000x2000 horizontal turntable is about 20~25 tons; As the load of the horizontal turntable increases, the rated load of the internal support bearings also needs to be increased. The larger the bearing type, the more difficult it is to process, the more difficult it is to control the accuracy, and the higher the cost. Even a large part of the bearings needs to be imported from abroad. Bearings, this directly leads to a straight-line increase in the manufacturing cost of the horizontal turntable, and the high price of the turntable, resulting in an increase in the cost of use.
发明内容Contents of the invention
本发明的目的在于提供一种大型卧式数控分度盘使用的气浮轴承，以解决上述背景技术中提出的问题。The object of the present invention is to provide an air bearing used in a large horizontal numerically controlled indexing table, so as to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本发明提供如下技术方案：一种大型卧式数控分度盘使用的气浮轴承，包括本体，所述本体的中心位置转动设置有旋转芯轴，所述旋转芯轴的顶端设置有延伸盘，所述延伸盘的顶部设置有盘面，所述本体的内侧相对于旋转芯轴的一侧设置有内陷槽，所述内陷槽的边缘固定设置有密封压环，所述密封压环的底部与内陷槽之间设置有第二密封圈，所述密封压环的顶部表面与延伸盘的底部表面贴合，且密封压环的顶部表面与延伸盘之间设置有第一密封圈，所述延伸盘的底部边缘与内陷槽的边缘之间设置有第三密封圈，所述盘面的底部边缘与本体的顶部边缘之间设置有VA油封。In order to achieve the above object, the present invention provides the following technical solution: an air bearing used for a large horizontal numerical control indexing table, including a body, the center of the body is rotated with a rotating mandrel, and the top of the rotating mandrel An extension disk is provided, the top of the extension disk is provided with a disk surface, the inner side of the body is provided with a sunken groove on the side opposite to the rotating mandrel, and the edge of the sunken groove is fixedly provided with a sealing pressure ring. A second sealing ring is arranged between the bottom of the sealing pressure ring and the indented groove, the top surface of the sealing pressure ring is attached to the bottom surface of the extension plate, and a second sealing ring is arranged between the top surface of the sealing pressure ring and the extension plate. A sealing ring, a third sealing ring is arranged between the bottom edge of the extension plate and the edge of the sunken groove, and a VA oil seal is arranged between the bottom edge of the disk surface and the top edge of the body.
优选的，所述内陷槽的形状为环状的凹槽结构。Preferably, the shape of the indented groove is an annular groove structure.
优选的，所述内陷槽的内侧表面设置有与进气口连通的进气通道。Preferably, an air inlet channel communicating with the air inlet is provided on the inner surface of the sunken groove.
优选的，所述密封压环的表面分别与第一密封圈和第二密封圈的连接处设置有环状的凹槽，且凹槽的尺寸与第一密封圈和第二密封圈保持一致。Preferably, ring-shaped grooves are provided at joints between the surface of the sealing pressure ring and the first sealing ring and the second sealing ring, and the size of the grooves is consistent with that of the first sealing ring and the second sealing ring.
优选的，所述VA油封的形状为圆环状结构，且VA油封的顶端设置有一个倾斜的三十度角的斜面环状结构。Preferably, the shape of the VA oil seal is a ring structure, and the top end of the VA oil seal is provided with a bevel ring structure inclined at an angle of 30 degrees.
与现有技术相比，本发明的有益效果是：在本发明中设计了气浮轴承结构，解决了大型转台使用大轴承导致的成本增高的问题，让大型转台搭配使用中小型轴承和气浮轴承的组合方式成倍数提高转台的负载能力，并用气浮轴承结构作为常规轴承的保护，使常规轴承寿命延长，以此来降低转台制造成本，延长转台寿命。Compared with the prior art, the beneficial effect of the present invention is: the air bearing structure is designed in the present invention, which solves the problem of increased cost caused by the use of large bearings for large turntables, allowing large turntables to use small and medium-sized bearings and air bearings together The combination method doubles the load capacity of the turntable, and the air bearing structure is used as the protection of the conventional bearings to prolong the life of the conventional bearings, thereby reducing the manufacturing cost of the turntable and prolonging the life of the turntable.
附图说明Description of drawings
图1为本发明的正视结构示意图；Fig. 1 is the front structural schematic diagram of the present invention;
图2为本发明的俯视结构示意图；Fig. 2 is the top view structure schematic diagram of the present invention;
图3为本发明的侧视局部剖视结构示意图；Fig. 3 is a side view partial sectional structural schematic diagram of the present invention;
图4为本发明的A处放大结构示意图；Fig. 4 is the schematic diagram of enlarged structure of place A of the present invention;
图中：1、本体；2、盘面；3、进气口；4、第一密封圈；5、旋转芯轴；6、密封压环；7、第二密封圈；8、第三密封圈；9、VA油封；10、内陷槽；11、延伸盘。In the figure: 1. Body; 2. Disk surface; 3. Air inlet; 4. First sealing ring; 5. Rotating mandrel; 6. Sealing pressure ring; 7. Second sealing ring; 8. Third sealing ring; 9. VA oil seal; 10. Inner groove; 11. Extended plate.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
请参阅图1-4，本发明提供一种技术方案：一种大型卧式数控分度盘使用的气浮轴承，包括本体1，本体1的中心位置转动设置有旋转芯轴5，旋转芯轴5的顶端设置有延伸盘11，延伸盘11的顶部设置有盘面2，本体1的内侧相对于旋转芯轴5的一侧设置有内陷槽10，内陷槽10的边缘固定设置有密封压环6，密封压环6的底部与内陷槽10之间设置有第二密封圈7，密封压环6的顶部表面与延伸盘11的底部表面贴合，且密封压环6的顶部表面与延伸盘11之间设置有第一密封圈4，延伸盘11的底部边缘与内陷槽10的边缘之间设置有第三密封圈8，盘面2的底部边缘与本体1的顶部边缘之间设置有VA油封9。Please refer to Figures 1-4, the present invention provides a technical solution: an air bearing used for a large horizontal numerical control indexing table, including a body 1, a rotating mandrel 5 is provided at the center of the body 1, and the rotating mandrel 5 is provided with an extension disk 11, the top of the extension disk 11 is provided with a disk surface 2, the inner side of the body 1 is provided with a recessed groove 10 on the side opposite to the rotating mandrel 5, and the edge of the recessed groove 10 is fixedly provided with a sealing pressure. Ring 6, a second sealing ring 7 is arranged between the bottom of the sealing pressure ring 6 and the recessed groove 10, the top surface of the sealing pressure ring 6 is attached to the bottom surface of the extension plate 11, and the top surface of the sealing pressure ring 6 is in contact with the bottom surface of the extension plate 11. A first sealing ring 4 is arranged between the extension disks 11, a third sealing ring 8 is arranged between the bottom edge of the extension disk 11 and the edge of the indentation groove 10, and a third sealing ring 8 is arranged between the bottom edge of the disk surface 2 and the top edge of the body 1. There are VA oil seals 9.
本实施例中，优选的，内陷槽10的形状为环状的凹槽结构，为了方便形成密闭空腔。In this embodiment, preferably, the shape of the recessed groove 10 is an annular groove structure, for the convenience of forming a closed cavity.
本实施例中，优选的，内陷槽10的内侧表面设置有与进气口3连通的进气通道，为了方便充气。In this embodiment, preferably, the inner surface of the sunken groove 10 is provided with an air intake passage communicating with the air inlet 3 for the convenience of inflation.
本实施例中，优选的，密封压环6的表面分别与第一密封圈4和第二密封圈7的连接处设置有环状的凹槽，且凹槽的尺寸与第一密封圈4和第二密封圈7保持一致，为了方便安装，防止脱落。In this embodiment, preferably, ring-shaped grooves are provided at the joints between the surface of the sealing pressure ring 6 and the first sealing ring 4 and the second sealing ring 7, and the size of the groove is the same as that of the first sealing ring 4 and the second sealing ring 7. The second sealing ring 7 is kept consistent, in order to facilitate installation and prevent falling off.
本实施例中，优选的，VA油封9的形状为圆环状结构，且VA油封9的顶端设置有一个倾斜的三十度角的斜面环状结构，为了保证密封。In this embodiment, preferably, the shape of the VA oil seal 9 is an annular structure, and the top end of the VA oil seal 9 is provided with an inclined-plane annular structure inclined at an angle of 30 degrees, in order to ensure the sealing.
本发明的工作原理及使用流程：为了降低转台满载时的启动摩擦力，并保护轴承不受损伤，我们通过进气口3在本体1上的内陷槽10和旋转心轴5上的延伸盘11之间的空腔内通入空气，并用第一密封圈4、第二密封圈7、第三密封圈8使空腔形成密封室，旋转心轴5受到气体向上的推力，这样就减轻了原轴承的负载，根据：p=F/S（F为推力，单位N，p为气体压力，单位Pa，S为受力面积，单位m2，本转台受力面积S=5497cm2），G=mg（G为重力，单位N，m为质量，单位kg，g=9.8N/kg）；转台受重载为m时，让F=G，得到p=mg/S，我们通过调整气体压力p（调整调压阀），可以让重物的重力和气浮轴承的推力相等，大幅度提高了转台的载重能力，降低了转台旋转时的摩擦力和启动力矩，降低了转台制造成本，延长转台的寿命。The working principle and application process of the present invention: in order to reduce the starting friction when the turntable is fully loaded and protect the bearing from damage, we use the indented groove 10 on the body 1 of the air inlet 3 and the extension plate on the rotating mandrel 5 Air is introduced into the cavity between 11, and the first sealing ring 4, the second sealing ring 7, and the third sealing ring 8 are used to form a sealed chamber in the cavity, and the rotating mandrel 5 is pushed upward by the gas, thus reducing the The load of the original bearing is based on: p=F/S (F is thrust, unit N, p is gas pressure, unit Pa, S is force area, unit m2, this turntable force area S=5497cm2), G=mg (G is gravity, unit N, m is mass, unit kg, g=9.8N/kg); when the turntable is under a heavy load of m, let F=G, get p=mg/S, we adjust the gas pressure p ( Adjusting the pressure regulating valve) can make the gravity of the heavy object equal to the thrust of the air bearing, which greatly improves the load capacity of the turntable, reduces the friction and starting torque when the turntable rotates, reduces the manufacturing cost of the turntable, and prolongs the life of the turntable .
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874995.7A CN110469585A (en) | 2019-09-17 | 2019-09-17 | A kind of air-bearing that large-size horizontal numerical control scale-division disk uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874995.7A CN110469585A (en) | 2019-09-17 | 2019-09-17 | A kind of air-bearing that large-size horizontal numerical control scale-division disk uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110469585A true CN110469585A (en) | 2019-11-19 |
Family
ID=68515972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874995.7A Pending CN110469585A (en) | 2019-09-17 | 2019-09-17 | A kind of air-bearing that large-size horizontal numerical control scale-division disk uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469585A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454507A (en) * | 2019-09-17 | 2019-11-15 | 苏州江本精密机械有限公司 | Auxiliary support bearing used in CNC horizontal turntable |
| CN114434171A (en) * | 2022-03-22 | 2022-05-06 | 福建省龙治智能设备有限公司 | High-precision stable type boring and milling machining center |
| CN114483786A (en) * | 2020-11-12 | 2022-05-13 | 上海微电子装备（集团）股份有限公司 | Split type air foot |
| CN114536099A (en) * | 2022-01-30 | 2022-05-27 | 山东联峰精密科技有限公司 | High-precision air suspension interval indexing disc |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772961A (en) * | 1972-04-06 | 1973-11-20 | Giddings & Lewis | Hydrostatic rotary table |
| US4794289A (en) * | 1985-08-02 | 1988-12-27 | Rank Taylor Hobson Limited | Bearing structures |
| CN205798963U (en) * | 2016-07-25 | 2016-12-14 | 厦门德垦特智能科技有限公司 | There is the rotary table of gas curtain protection device |
| CN106704372A (en) * | 2017-02-16 | 2017-05-24 | 张维国 | Hydraulic-suspension high thrust bearing |
| CN206487767U (en) * | 2017-02-16 | 2017-09-12 | 张维国 | A kind of hydraulic pressure suspension high thrust bearing |
| CN207915000U (en) * | 2017-12-20 | 2018-09-28 | 常州市康美机械科技有限公司 | Numerically-controlled machine tool index table |
| CN108679182A (en) * | 2018-08-02 | 2018-10-19 | 深圳市龙方自动化科技有限公司 | A kind of stable transmission Pneumatic rotary index dial |
| CN109505981A (en) * | 2018-11-19 | 2019-03-22 | 广州市昊志机电股份有限公司 | A kind of turntable sealing structure |
| CN210461401U (en) * | 2019-09-17 | 2020-05-05 | 苏州江本精密机械有限公司 | Air bearing for large horizontal numerical control dividing disc |
-
2019
- 2019-09-17 CN CN201910874995.7A patent/CN110469585A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772961A (en) * | 1972-04-06 | 1973-11-20 | Giddings & Lewis | Hydrostatic rotary table |
| US4794289A (en) * | 1985-08-02 | 1988-12-27 | Rank Taylor Hobson Limited | Bearing structures |
| CN205798963U (en) * | 2016-07-25 | 2016-12-14 | 厦门德垦特智能科技有限公司 | There is the rotary table of gas curtain protection device |
| CN106704372A (en) * | 2017-02-16 | 2017-05-24 | 张维国 | Hydraulic-suspension high thrust bearing |
| CN206487767U (en) * | 2017-02-16 | 2017-09-12 | 张维国 | A kind of hydraulic pressure suspension high thrust bearing |
| CN207915000U (en) * | 2017-12-20 | 2018-09-28 | 常州市康美机械科技有限公司 | Numerically-controlled machine tool index table |
| CN108679182A (en) * | 2018-08-02 | 2018-10-19 | 深圳市龙方自动化科技有限公司 | A kind of stable transmission Pneumatic rotary index dial |
| CN109505981A (en) * | 2018-11-19 | 2019-03-22 | 广州市昊志机电股份有限公司 | A kind of turntable sealing structure |
| CN210461401U (en) * | 2019-09-17 | 2020-05-05 | 苏州江本精密机械有限公司 | Air bearing for large horizontal numerical control dividing disc |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454507A (en) * | 2019-09-17 | 2019-11-15 | 苏州江本精密机械有限公司 | Auxiliary support bearing used in CNC horizontal turntable |
| CN114483786A (en) * | 2020-11-12 | 2022-05-13 | 上海微电子装备（集团）股份有限公司 | Split type air foot |
| CN114483786B (en) * | 2020-11-12 | 2023-02-17 | 上海微电子装备（集团）股份有限公司 | Split type gas foot |
| CN114536099A (en) * | 2022-01-30 | 2022-05-27 | 山东联峰精密科技有限公司 | High-precision air suspension interval indexing disc |
| CN114434171A (en) * | 2022-03-22 | 2022-05-06 | 福建省龙治智能设备有限公司 | High-precision stable type boring and milling machining center |
| CN114434171B (en) * | 2022-03-22 | 2024-02-06 | 福建省龙治智能设备有限公司 | High-precision stable boring and milling machining center |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110469585A (en) | A kind of air-bearing that large-size horizontal numerical control scale-division disk uses | |
| CN211778556U (en) | T-shaped small-hole throttling air-flotation rotary table | |
| CN108869532A (en) | A new type of dynamic pressure gas thrust bearing based on the principle of centripetal supercharging | |
| CN201851656U (en) | Hydrostatic and hydrodynamic combined mechanical sealing structure | |
| CN106015578A (en) | Foil end face air film sealing structure with microporous texture on foil surface | |
| CN101285500A (en) | Water-lubricated thrust bearings with ring grooves | |
| CN202392338U (en) | Multichannel type rotary joint | |
| CN202691101U (en) | Radius varying type pneumatic wear-resisting rocking valve | |
| CN201902561U (en) | Mechanical seal ring | |
| CN210461401U (en) | Air bearing for large horizontal numerical control dividing disc | |
| CN205534239U (en) | Dry gas seal of oxidation stirring kettle | |
| CN104511409A (en) | Gluing working disc for cylindrical battery | |
| CN104028609B (en) | Be applied to the annular frustum structure Two-layer Blank Holder device of dome head integral drawing | |
| CN205415324U (en) | Hanging wall water -cooling mechanism of machine is ground in polishing | |
| CN108481124A (en) | A kind of ultraprecise ball molding machine | |
| CN204592026U (en) | A kind of main bearing of ball grinding mill housing | |
| CN107725790A (en) | A kind of computational methods for being catalyzed flue gas and butterfly valve and its sealing ring sealing curved surface being cut off with high temperature | |
| CN204003975U (en) | A kind of dynamic and static pressure composite air-bearing | |
| CN103075526B (en) | Butterfly valve with inflation seal valve plate | |
| CN212444753U (en) | Magnetic disc structure of conical roller ball base surface grinding machine | |
| CN202251984U (en) | Gas sealing mechanism of high-speed rotating machine | |
| CN208542783U (en) | A kind of efficient wave tooth spacer Pressing Deformation device | |
| CN210566259U (en) | An anchor-shaped dry gas sealing mechanism | |
| CN203565264U (en) | Atomizer transmission mechanism | |
| CN209774330U (en) | Grinding tool for end face of opening sealing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191119 |
|
| WD01 | Invention patent application deemed withdrawn after publication |