CN111502989B - Oilless male and female screw - Google Patents
Oilless male and female screw Download PDFInfo
- Publication number
- CN111502989B CN111502989B CN201910932655.5A CN201910932655A CN111502989B CN 111502989 B CN111502989 B CN 111502989B CN 201910932655 A CN201910932655 A CN 201910932655A CN 111502989 B CN111502989 B CN 111502989B
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- CN
- China
- Prior art keywords
- gear
- bearing
- female screw
- male
- screw
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding-Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses an oilless male and female screw, which belongs to the technical field of oilless screws, all parts are sleeved on the screw in sequence, all parts are fixed by utilizing a gear compression cover and a nut at the end part of the screw, and the space between the female screw and the male screw is fixed by utilizing a pair of meshed synchronous gears, so that the installation is convenient, and the precision is high.
Description
Technical Field
The invention relates to the technical field of oil-free screws, in particular to an oil-free male and female screw.
Background
The oil-free dry type screw compressor and the screw fan are internally provided with the oil-free yin and yang screws, the oil-free yin and yang screws generally comprise a male screw and a female screw matched with the male screw, and at present, the fixation of the yin and yang screws completely depends on the limit structure inside the machine, so that the installation of the yin and yang screws is very troublesome, and the installation accuracy of the oil-free yin and yang screws is not high due to errors in the production process.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oilless male and female screw, which utilizes a pair of synchronous gears to fix the interval between a female screw and a male screw, and parts are fixed by nuts on one side of the male and female screws, so that the installation is simple and the installation precision is high.
In order to achieve the above purpose, the present invention provides the following technical solutions: the oil-free male and female screws comprise a female screw 6 and a male screw 5, and are characterized in that a floating seal assembly 7, a shaft sleeve 7-1, an oil slinger 8, a bearing assembly and a bearing pressing cover 11 are arranged on the female screw 6 and the male screw 5, the floating seal assembly 7 is arranged on the shaft sleeve 7-1, the oil slinger 8 is arranged on one side of the floating seal assembly 7, the bearing assembly is arranged on one side of the oil slinger 8, the bearing assembly comprises a first bearing 9 and a second bearing 10, the bearing pressing cover 11 is arranged on one side of the bearing assembly, a second gear 4 is arranged on one side of the bearing pressing cover 11 in the female screw 6, a gear pressing cover 2 is arranged on one side of the second gear 4, a first gear 3 is arranged on one side of the bearing pressing cover 11 in the male screw 5, a driving wheel 12 is arranged on one side of the first gear 3, a nut 1 is arranged on one side of the driving wheel 12, and the first gear 3 and the second gear 4 are meshed with each other.
Preferably, the drive wheel 12 is connected to an electric motor.
Preferably, the first gear 3 and the second gear 4 are a pair of synchronous gears.
Compared with the prior art, the invention has the beneficial effects that: all parts are sleeved on the screw rod in sequence, the gear compression cover and the nut at the end part of the screw rod are utilized to fix all the parts, the interval between the female screw rod and the male screw rod is fixed by utilizing a pair of meshed synchronous gears, the installation is convenient, the precision is high, meanwhile, the problem of part machining precision can be solved by selecting oil slingers with different thicknesses, and therefore the working precision of the oil-free female screw rod and the oil slinger is further improved.
Drawings
FIG. 1 is a side view of the present invention;
FIG. 2 is a cross-sectional view at A in FIG. 1;
fig. 3 is a top view of the present invention.
In the figure: 1. a nut; 2. a gear pressing cover; 3. a first gear; 4. a second gear; 5. a male screw; 6. a female screw; 7. a floating seal assembly; 7-1, shaft sleeve; 8. oil slinger; 9. a first bearing; 10. a second bearing; 11. a bearing pressing cover; 12. a driving wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Examples: as shown in the figure, the oil-free male and female screws comprise a female screw 6 and a male screw 5, and are characterized in that a floating seal assembly 7, a shaft sleeve 7-1, an oil slinger 8, a bearing assembly and a bearing pressing cover 11 are arranged on the female screw 6 and the male screw 5, the floating seal assembly 7 is arranged on the shaft sleeve 7-1, the oil slinger 8 is arranged on one side of the floating seal assembly 7, the bearing assembly is arranged on one side of the oil slinger 8, the bearing assembly comprises a first bearing 9 and a second bearing 10, the bearing pressing cover 11 is arranged on one side of the bearing assembly, the second gear 4 is arranged on one side of the bearing pressing cover 11 in the female screw 6, the gear pressing cover 2 is arranged on one side of the second gear 4, the first gear 3 is arranged on one side of the bearing pressing cover 11 in the male screw 5, the driving wheel 12 is arranged on one side of the driving wheel 3, the driving wheel 1 is arranged on one side of the driving wheel 12, the first gear 3 and the second gear 4 are meshed with each other, the first gear 3 and the second gear 4 are a pair of synchronous gears, and the driving wheel 12 is connected with a motor.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides an oilless yin-yang screw, includes female screw (6) and male screw (5), a serial communication port, all install floating seal assembly (7), axle sleeve (7-1), oil slinger (8), bearing assembly and bearing and compress tightly lid (11) on female screw (6), male screw (5), floating seal assembly (7) are installed on axle sleeve (7-1), oil slinger (8) are installed to one side of floating seal assembly (7), bearing assembly is installed on oil slinger (8) one side, bearing assembly includes first bearing (9) and second bearing (10), one side of bearing assembly is provided with bearing and compresses tightly lid (11), second gear (4) are installed to one side of bearing and compress tightly lid (11) in female screw (6), gear and compress tightly lid (2) are installed to one side of second gear (4), first gear (3) are installed to one side of bearing and compress tightly lid (11) in male screw (5), first gear (3) one side is provided with oil slinger (12), first gear (1) and second gear (3) are installed to one side, first gear (4) are meshed each other.
2. An oil-free male and female screw as claimed in claim 1, wherein: the driving wheel (12) is connected with a motor.
3. An oil-free male and female screw as claimed in claim 1, wherein: the first gear (3) and the second gear (4) are a pair of synchromesh gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932655.5A CN111502989B (en) | 2019-09-29 | 2019-09-29 | Oilless male and female screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932655.5A CN111502989B (en) | 2019-09-29 | 2019-09-29 | Oilless male and female screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111502989A CN111502989A (en) | 2020-08-07 |
| CN111502989B true CN111502989B (en) | 2023-07-14 |
Family
ID=71867115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910932655.5A Active CN111502989B (en) | 2019-09-29 | 2019-09-29 | Oilless male and female screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111502989B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5951190A (en) * | 1982-09-17 | 1984-03-24 | Hitachi Ltd | Oil thrower device of oil-free screw compressor |
| JPH0893487A (en) * | 1994-09-20 | 1996-04-09 | Tochigi Fuji Ind Co Ltd | Screw type supercharger |
| CN102322421B (en) * | 2011-08-29 | 2014-03-12 | 骆贻红 | Vehicle-mounted oil-free screw air compressor and oil circuit self-circulation cooling method thereof |
| CN203809293U (en) * | 2013-12-19 | 2014-09-03 | 江西隆恒科技有限公司 | Oilless double-screw compressor and rotor thereof |
| CN203742985U (en) * | 2014-01-10 | 2014-07-30 | 宁波戈士流体科技有限公司 | Oil-free dry type screw rod air compressor |
| CN207750233U (en) * | 2018-01-15 | 2018-08-21 | 安徽高鹏真空设备有限公司 | A kind of stainless steel screw pump |
| CN210859195U (en) * | 2019-09-29 | 2020-06-26 | 宁波市新炜流体科技有限公司 | Oil-free male and female screw |
-
2019
- 2019-09-29 CN CN201910932655.5A patent/CN111502989B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111502989A (en) | 2020-08-07 |
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