CN114210959A - Vacuum casting furnace main shaft lifter protection device - Google Patents
Vacuum casting furnace main shaft lifter protection device Download PDFInfo
- Publication number
- CN114210959A CN114210959A CN202111535213.0A CN202111535213A CN114210959A CN 114210959 A CN114210959 A CN 114210959A CN 202111535213 A CN202111535213 A CN 202111535213A CN 114210959 A CN114210959 A CN 114210959A
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- China
- Prior art keywords
- main shaft
- lifting rod
- protection device
- protective sleeve
- vacuum casting
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/02—Turning or transposing moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a protection device for a main shaft lifting rod of a vacuum casting furnace, which relates to the field of investment precision casting vacuum casting furnaces and relates to aviation and aerospace engines, wherein the protection device for the main shaft lifting rod of the vacuum casting furnace is arranged along the vertical direction of the main shaft lifting rod and wraps a protection sleeve outside the main shaft lifting rod, so that the requirement of conveying a formwork by the main shaft lifting rod can be met, metal splashing during casting does not damage a main shaft system, meanwhile, the protection sleeve plays a role in protecting the main shaft lifting rod, and the problems that metal scraps are abraded and damaged to a main shaft when the main shaft lifting rod reciprocates and the maintenance cost of the main shaft system is high can be effectively solved; the invention effectively avoids the phenomenon that the splashed molten metal is adhered to damage the surface of the main shaft to shorten the service life of the main shaft, and solves the problems of inconvenience for cleaning metal chips on the surface of the main shaft and prolonging the service life of the main shaft.
Description
Technical Field
The invention relates to the field of investment precision casting vacuum casting furnaces, relates to aviation and aerospace engines, and particularly relates to a protection device for a main shaft lifting rod of a vacuum casting furnace, which is used for protecting the safety and reliability of a core part of a main shaft system.
Background
The vacuum degree requirement of the environment is met when the part of investment precision castings are poured, and the investment precision castings need to be poured in vacuum casting equipment. The main content of the vacuum pouring process is that in the equipment with the vacuum degree meeting the requirement, the liquid with the melting temperature reaching the requirement is poured into the mold shell reaching the specified temperature.
In the pouring process, the mould shell rises to the pouring chamber through the main shaft lifting rod, if the pouring operation is improper, high-temperature liquid reaching the alloy liquid phase line of more than 100 ℃ splashes, the high-temperature liquid splashes into the surface of the main shaft and the pit through the opening gap between the main shaft lifting rod and the casting mould chamber, metal chips in the pit can be regularly cleaned, but the main shaft lifting rod needs to reciprocate and needs to ensure the surface to be smooth and lubricated. If the cleaning is not carried out in time, the surface of the main shaft system can be abraded, the service life of the main shaft system is shortened, the use safety of the main shaft system is reduced, and even accidents of jamming and damage of the main shaft are caused. The main shaft is expensive and the maintenance cost is high.
Disclosure of Invention
The invention provides a protection device for a main shaft lifting rod of a vacuum casting furnace, aiming at solving the problems that in the prior art, metal scraps are splashed to cause surface abrasion of a main shaft system and the service life of the main shaft system is shortened.
The invention is realized by the following technical scheme:
the utility model provides a vacuum fusion casting stove main shaft lifter protection device, includes along the vertical direction of main shaft lifter on and wraps up at the outside protective sheath of main shaft lifter, the upper end intercommunication casting mould room of main shaft lifter, the bottom mounting is on the pit, the top of protective sheath is along the vertical direction of main shaft lifter and casting mould room intercommunication and fastening setting, the bottom of protective sheath is fixed on the pit along the vertical direction of main shaft lifter, realizes the guard action to the main shaft lifter.
Preferably, the clearance between the inner side wall of the protective sleeve and the spindle lifting rod is larger than 10 mm.
Preferably, the structure of the protective sleeve is a corrugated structure.
Preferably, the material of the protective sleeve is a fire-resistant plastic material with an elastomer.
Preferably, the protective sleeve is provided with a zipper, and the zipper is arranged on the protective sleeve along the vertical direction and used for fastening and disassembling the protective sleeve.
Preferably, the top end of the protective sleeve is provided with a first fixing piece, and the first fixing piece is used for tightly connecting the top end of the protective sleeve to the casting mold chamber through a bolt.
Preferably, the bottom end of the protective sleeve is provided with a second fixing piece, and the bottom end of the protective sleeve is connected to the pit through a bolt by the second fixing piece.
Further, the second fixing piece is arranged flush with the surface of the pit, and the periphery of the second fixing piece is connected with the pit in a seamless mode through tightening the bolts.
Preferably, the length of the protective sleeve corresponds to the length of the spindle lifting rod.
Preferably, the structure formed by the protective sleeve in a surrounding mode corresponds to the rod body structure of the spindle lifting rod.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a protection device for a main shaft lifting rod of a vacuum casting furnace, which is characterized in that a protection sleeve is arranged along the vertical direction of the main shaft lifting rod and wrapped outside the main shaft lifting rod, so that the requirement that the main shaft lifting rod conveys a formwork can be met, metal splashed during pouring does not damage a main shaft system, meanwhile, the protection sleeve plays a role in protecting the main shaft lifting rod, the problem of abrasion damage of metal scraps to a main shaft during reciprocating motion of the main shaft lifting rod can be effectively solved, and the problem of high maintenance cost of the main shaft system is solved; the maintenance frequency and the cost of the main shaft system are reduced, and the use efficiency of the vacuum casting furnace equipment is improved to a great extent.
Further, the clearance of protective sheath inside wall and main shaft lifter is greater than 10mm, has the clearance between protective sheath and the main shaft lifter, and the metal fillings to the wearing and tearing injury problem of main shaft when avoiding main shaft lifter reciprocating motion to the protectiveness to the main shaft lifter that can effectual increase.
Furthermore, the cover body structure of the protective cover is of a corrugated structure, the corrugated structure also promotes the protective cover and the main shaft lifting rod to form a gap structure, and the protective effect on the main shaft lifting rod is improved.
Furthermore, the material of protective sheath is the fire-resistant plastic material who has the elastomer, has guaranteed to work under high temperature, has improved the heat-resisting strength of protective sheath self, avoids causing the damage to the protective sheath on splashing the protective sheath because of the metal fillings of high temperature.
Furthermore, a zipper is arranged on the protective sleeve, and the zipper is arranged on the protective sleeve along the vertical direction and used for fastening and disassembling the protective sleeve, so that the protective sleeve is conveniently sleeved on the main shaft lifting rod, and the protective sleeve is conveniently taken down from the main shaft lifting rod.
Furthermore, the top of protective sheath is equipped with first mounting, and first mounting passes through the bolt and has improved the fastening connection nature of protective sheath top and casting mould room on with the top fastening connection of protective sheath on the casting mould room.
Further, the bottom of protective sheath is equipped with the second mounting, and the second mounting passes through the bolt and connects the protective sheath bottom on the pit, has improved the fastening connectivity of protective sheath bottom and pit.
Furthermore, the second fixing piece is flush with the surface of the pit, the periphery of the second fixing piece is connected with the pit in a seamless mode by screwing the bolt, and the problem that metal chips fall into a gap between the second fixing piece and the pit to cause difficulty in cleaning is avoided.
Further, the length of protective sheath corresponds the setting with the length of main shaft lifter for the protective sheath can protect the whole of main shaft lifter.
Furthermore, the structure that the protective sheath encircled and formed corresponds the setting with the body of rod structure of main shaft lifter, has improved the suitability of protective sheath.
Drawings
FIG. 1 is a schematic structural diagram of a protection device for a main shaft lifting rod of a vacuum casting furnace.
In the figure: 1-a main shaft lifting rod; 2-a first fixing member; 3-protecting the jacket; 4-a second fixing member; 5, a zipper; 6-pit.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, in an embodiment of the present invention, the present invention provides a protection device for a main shaft lifting rod of a vacuum casting furnace, which has a simple structure and is convenient to use, effectively prevents splashed molten metal from adhering to damage the surface of the main shaft and shortening the service life of the main shaft, solves the problems of inconvenience in cleaning metal chips on the surface of the main shaft and prolonging the service life of the main shaft, and solves the technical problems of sealing, matching and the like between the main shaft lifting rod and a casting mold chamber.
Concretely, this vacuum melting and casting furnace main shaft lifter protection device includes along 1 vertical direction of main shaft lifter and wraps up at 1 outside protective sheath 2 of main shaft lifter, the upper end intercommunication casting mould room of main shaft lifter 1, the bottom mounting is on pit 6, the top of protective sheath 2 along 1 vertical direction of main shaft lifter and casting mould room intercommunication and the fastening setting of casting mould room, the bottom of protective sheath 2 is fixed on pit 6 along 1 vertical direction of main shaft lifter, realizes the guard action to main shaft lifter 1.
Specifically, the clearance of 2 inside walls of protective sheath and main shaft lifter 1 is greater than 10mm, has the clearance between protective sheath 2 and the main shaft lifter 1, and the metal fillings are to the wearing and tearing injury problem of main shaft when avoiding 1 reciprocating motion of main shaft lifter to the protectiveness to main shaft lifter 1 that can effectual increase.
Specifically, the sleeve body structure of the protective sleeve 2 is of a corrugated structure, and the corrugated structure also promotes the protective sleeve 2 and the spindle lifting rod 1 to form a gap structure, so that the protection effect on the spindle lifting rod 1 is improved.
Specifically, protective sheath 2's material is for the fire-resistant plastic material that has the elastomer, has guaranteed to work under high temperature, has improved protective sheath 2 self heat-resisting strength, avoids splashing the protective sheath because of the metal fillings of high temperature and causes the damage to protective sheath 2 on.
Specifically, be equipped with zip fastener 5 on protective sheath 2, zip fastener 5 sets up along vertical direction on protective sheath 2 for fastening and dismantlement protective sheath 2 are convenient for establish protective sheath 2 cover on main shaft lifter 1, also are convenient for take off protective sheath 2 on main shaft lifter 1.
Specifically, the top of protective sheath 2 is equipped with first mounting 2, first mounting 2 passes through the bolt and with the top fastening connection of protective sheath 2 on the casting mould room, has improved the fastening connection nature of protective sheath 2 top and casting mould room.
Specifically, the bottom of protective sheath 2 is equipped with second mounting 4, second mounting 4 passes through the bolt and connects protective sheath 2 bottom on pit 6, has improved the fastening connectivity of protective sheath 2 bottom and pit.
Wherein, second mounting 4 sets up with the surperficial parallel and level of pit 6, and makes the periphery and the pit 6 seamless connection of second mounting 4 through screwing up the bolt, avoids the metal fillings to fall into the gap between second mounting 4 and the pit 5, causes the clearance difficulty.
Specifically, the length of the protective sleeve 2 corresponds to the length of the spindle lifting rod 1, so that the protective sleeve 2 can protect the whole spindle lifting rod 1.
Specifically, the structure that protective sheath 2 surrounded and formed corresponds the setting with the body of rod structure of main shaft lifter 1, has improved the suitability of protective sheath.
The protective sleeve 2 is made of a refractory material with good plasticity and certain hardness, can be made of hard mica with good plasticity, is mainly used for protecting the surface of the main shaft lifting rod 1, can completely isolate the damage of splashed molten metal to the main shaft, plays an absolute protection role, prolongs the service life of the main shaft, and reduces the maintenance cost of the main shaft.
The using period is regulated, metal scraps on the protective sleeve 2 and the zipper 5 only need to be cleaned regularly, or the protective sleeve 2 is replaced after a certain period, so that the spindle lifting rod 1 can be safely and reliably used. The replacement and maintenance cost of the main shaft lifting rod 1 can be effectively reduced. Aiming at different types of vacuum casting furnaces, the comprehensive protection of the main shaft can be realized only by replacing the protective sleeve 2.
The invention discloses a protection device for a main shaft lifting rod of a vacuum casting furnace, which is used for:
1) manufacturing a protective sleeve 2 in the invention, and designing a fireproof plastic material of an elastic body along the axial direction of a main shaft;
2) the first fixing piece 2 and the second fixing piece 4 are manufactured, so that the top end of the protective sleeve 2 can be fixedly connected with the bottom surface of the table board of the lifting rod through the first fixing piece 2 in a circle, and the bottom end of the protective sleeve can be connected with the pit 6 in a seamless mode through the second fixing piece 4 in a circle.
3) The zipper 5 is manufactured, the zipper is arranged from top to bottom along the axial direction of the protective sleeve 2, the protective sleeve 2 in a circle is connected, and meanwhile, the gap between the spindle lifting rod 1 and the protective sleeve 2 is kept to be not less than 10 mm.
4) The manufactured corrugated protective sleeve of the lifting rod is arranged outside the main shaft lifting rod 1, the upper end and the lower end of the corrugated protective sleeve are fastened by four bolts respectively, and the zipper 5 can normally run to fasten and detach the protective sleeve 2.
5) Pouring is carried out according to a general vacuum casting pouring method, the spindle lifting rod is normally operated, splashed metal liquid splashes onto the protective sleeve or falls into a pit, and the protective sleeve and the pit are periodically cleaned.
Example 1
ALD three-chamber vacuum furnace
1) And manufacturing a protective sleeve 2 matched with the ALD furnace main shaft, and arranging a fireproof plastic material of an elastic body along the axial direction of the main shaft.
2) The first fixing piece 2 and the second fixing piece 4 are manufactured, so that the top end of the protective sleeve 2 can be fixedly connected with the bottom surface of the table board of the lifting rod through the first fixing piece 2 in a circle, and the bottom end of the protective sleeve can be connected with the pit 6 in a seamless mode through the second fixing piece 4 in a circle.
3) The zipper 5 is manufactured, the zipper is arranged from top to bottom along the axial direction of the protective sleeve 2, the protective sleeve 2 is connected in a circle, and meanwhile, the gap between the spindle lifting rod 1 and the protective sleeve 2 is kept to be 12 mm.
4) The manufactured corrugated protection sleeve of the lifting rod is arranged outside the main shaft lifting rod 1, the upper end and the lower end of the corrugated protection sleeve are fastened by four bolts respectively, and the zipper 5 can normally run to form an effective protection state that the main shaft lifting rod is completely covered by the corrugated protection sleeve.
5) Pouring is carried out according to the method of pouring the vacuum casting by the ALD vacuum furnace, the spindle lifting rod is normally operated, splashed metal liquid splashes onto the protective sleeve or falls into a pit, and the protective sleeve and the pit are periodically cleaned.
6) And (4) loosening the first fixing piece 2 and the second fixing piece 4 according to a month period, taking down the protection device, and cleaning or replacing the protection device.
Example 2
1) A protective sleeve 2 matched with a large 100kg vacuum furnace is manufactured, and a fireproof plastic material of an elastic body is arranged along the axial direction of a main shaft.
2) The first fixing piece 2 and the second fixing piece 4 are manufactured, so that the top end of the protective sleeve 2 can be fixedly connected with the bottom surface of the table board of the lifting rod through the first fixing piece 2 in a circle, and the bottom end of the protective sleeve can be connected with the pit 6 in a seamless mode through the second fixing piece 4 in a circle.
3) The zipper 5 is manufactured, the zipper is arranged from top to bottom along the axial direction of the protective sleeve 2, the protective sleeve 2 is connected in a circle, and meanwhile, the gap between the spindle lifting rod 1 and the protective sleeve 2 is kept to be 15 mm.
4) The manufactured corrugated protection sleeve of the lifting rod is arranged outside the main shaft lifting rod 1, the upper end and the lower end of the corrugated protection sleeve are fastened by four bolts respectively, and the zipper 5 can normally run to form an effective protection state that the main shaft lifting rod is completely covered by the corrugated protection sleeve.
5) Pouring is carried out according to the method of pouring a vacuum casting in a large-scale 100kg vacuum furnace, the main shaft lifting rod is normally operated, the splashed metal liquid splashes to the protective sleeve or falls into a pit, and the protective sleeve and the pit are periodically cleaned.
6) And (4) loosening the first fixing piece 2 and the second fixing piece 4 according to a month period, taking down the protection device, performing waste treatment, and replacing the protection device with a new protection device.
In conclusion, the invention provides a protection device for a main shaft lifting rod of a vacuum casting furnace, which is characterized in that a protection sleeve is arranged along the vertical direction of the main shaft lifting rod and wrapped outside the main shaft lifting rod, so that the main shaft lifting rod can convey a formwork, metal splashes during casting can not damage a main shaft system, and meanwhile, the protection sleeve plays a role in protecting the main shaft lifting rod, so that the problems of abrasion damage of metal scraps to a main shaft and high maintenance cost of the main shaft system during reciprocating motion of the main shaft lifting rod can be effectively solved; the maintenance frequency and the cost of the main shaft system are reduced, and the use efficiency of the vacuum casting furnace equipment is improved to a great extent.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. The utility model provides a vacuum melting and casting stove main shaft lifter protection device, its characterized in that includes along main shaft lifter (1) vertical direction on and wraps up at the outside protective sheath (2) of main shaft lifter (1), the upper end intercommunication casting mould room of main shaft lifter (1), the bottom mounting is on pit (6), the top of protective sheath (2) along the vertical direction and the casting mould room intercommunication and the fastening setting of main shaft lifter (1), the bottom of protective sheath (2) is fixed on pit (6) along the vertical direction of main shaft lifter (1), realizes the guard action to main shaft lifter (1).
2. The protection device for the main shaft lifting rod of the vacuum casting furnace as claimed in claim 1, wherein the clearance between the inner side wall of the protective sleeve (2) and the main shaft lifting rod (1) is more than 10 mm.
3. The protection device for the lifting rod of the main shaft of the vacuum casting furnace as claimed in claim 1, wherein the sheath body structure of the protective sheath (2) is a corrugated structure.
4. The protection device for the lifting rod of the main shaft of the vacuum casting furnace as claimed in claim 1, wherein the material of the protective sleeve (2) is a fire-resistant plastic material with an elastomer.
5. A protection device for the lifting rod of the main shaft of a vacuum casting furnace as claimed in claim 1, characterized in that the protective sleeve (2) is provided with a zipper (5), and the zipper (5) is arranged on the protective sleeve (2) along the vertical direction for fastening and detaching the protective sleeve (2).
6. The protection device for the lifting rod of the main shaft of the vacuum casting furnace as claimed in claim 1, wherein the top end of the protective sleeve (2) is provided with a first fixing piece (2), and the first fixing piece (2) is used for tightly connecting the top end of the protective sleeve (2) on the casting mold chamber through a bolt.
7. The protection device for the lifting rod of the main shaft of the vacuum casting furnace as claimed in claim 1, wherein the bottom end of the protective sleeve (2) is provided with a second fixing member (4), and the second fixing member (4) is used for connecting the bottom end of the protective sleeve (2) to the pit (6) through a bolt.
8. The protection device for the lifting rod of the main shaft of the vacuum casting furnace is characterized in that the second fixing piece (4) is arranged flush with the surface of the pit (6), and the periphery of the second fixing piece (4) is seamlessly connected with the pit (6) by tightening bolts.
9. The protection device for the main shaft lifting rod of the vacuum casting furnace as claimed in claim 1, wherein the length of the protection sleeve (2) is set corresponding to the length of the main shaft lifting rod (1).
10. The protection device for the main shaft lifting rod of the vacuum casting furnace as claimed in claim 1, wherein the protection sleeve (2) is formed around a structure corresponding to the rod body structure of the main shaft lifting rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535213.0A CN114210959A (en) | 2021-12-15 | 2021-12-15 | Vacuum casting furnace main shaft lifter protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535213.0A CN114210959A (en) | 2021-12-15 | 2021-12-15 | Vacuum casting furnace main shaft lifter protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114210959A true CN114210959A (en) | 2022-03-22 |
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ID=80702380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111535213.0A Pending CN114210959A (en) | 2021-12-15 | 2021-12-15 | Vacuum casting furnace main shaft lifter protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114210959A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9202373A (en) * | 1991-05-22 | 1992-11-01 | Rockwell International Corp | SPINDLE SLEEVE FOR THE PROTECTION OF AN AXLE THAT IS NOT EQUIPPED WITH A WHEEL ASSEMBLY. |
| CN200960549Y (en) * | 2006-09-30 | 2007-10-17 | 宝山钢铁股份有限公司 | Main shaft protective sleeve device for continuous casting machine stopper mechanism |
| CN204004440U (en) * | 2013-11-28 | 2014-12-10 | 深圳市嘉德时代密封技术有限公司 | A kind of dust-proof cover |
| CN106195265A (en) * | 2016-08-31 | 2016-12-07 | 中国铁道科学研究院 | Dust cover and the brake unit of rail traffic vehicles |
| CN209124152U (en) * | 2018-11-20 | 2019-07-19 | 攀钢集团矿业有限公司 | A kind of flotation device main axis protective sleeve |
| CN209669393U (en) * | 2018-12-26 | 2019-11-22 | 隆基绿能科技股份有限公司 | A kind of crucible shaft for single crystal furnace seal assembly and crucible axis driving mechanism |
| CN209985593U (en) * | 2019-05-14 | 2020-01-24 | 张家港市华祥离心机制造有限公司 | Main shaft protection device of lower discharging centrifugal machine |
| CN214304632U (en) * | 2020-12-31 | 2021-09-28 | 江苏翔力重工科技有限公司 | Lifting hydraulic oil cylinder with double flanges |
-
2021
- 2021-12-15 CN CN202111535213.0A patent/CN114210959A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9202373A (en) * | 1991-05-22 | 1992-11-01 | Rockwell International Corp | SPINDLE SLEEVE FOR THE PROTECTION OF AN AXLE THAT IS NOT EQUIPPED WITH A WHEEL ASSEMBLY. |
| CN200960549Y (en) * | 2006-09-30 | 2007-10-17 | 宝山钢铁股份有限公司 | Main shaft protective sleeve device for continuous casting machine stopper mechanism |
| CN204004440U (en) * | 2013-11-28 | 2014-12-10 | 深圳市嘉德时代密封技术有限公司 | A kind of dust-proof cover |
| CN106195265A (en) * | 2016-08-31 | 2016-12-07 | 中国铁道科学研究院 | Dust cover and the brake unit of rail traffic vehicles |
| CN209124152U (en) * | 2018-11-20 | 2019-07-19 | 攀钢集团矿业有限公司 | A kind of flotation device main axis protective sleeve |
| CN209669393U (en) * | 2018-12-26 | 2019-11-22 | 隆基绿能科技股份有限公司 | A kind of crucible shaft for single crystal furnace seal assembly and crucible axis driving mechanism |
| CN209985593U (en) * | 2019-05-14 | 2020-01-24 | 张家港市华祥离心机制造有限公司 | Main shaft protection device of lower discharging centrifugal machine |
| CN214304632U (en) * | 2020-12-31 | 2021-09-28 | 江苏翔力重工科技有限公司 | Lifting hydraulic oil cylinder with double flanges |
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