CN203742985U - Oil-free dry type screw rod air compressor - Google Patents
Oil-free dry type screw rod air compressor Download PDFInfo
- Publication number
- CN203742985U CN203742985U CN201420016261.8U CN201420016261U CN203742985U CN 203742985 U CN203742985 U CN 203742985U CN 201420016261 U CN201420016261 U CN 201420016261U CN 203742985 U CN203742985 U CN 203742985U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- oil
- gearbox
- compressor
- female 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.)
- Expired - Lifetime
Links
- 238000007667 floating Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 208000032370 Secondary transmission Diseases 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 30
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 15
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- -1 weaving Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses an oil-free dry type screw rod air compressor. The oil-free dry type screw rod air compressor comprises a speed changing box, an oil pump arranged in the speed changing box and a compressor which is in matched connection with the speed changing box, wherein the compressor is internally provided with a male screw rod and a female screw rod; the speed changing box is internally provided with a driving shaft; the driving shaft is connected to the male screw rod by a secondary speed changing device; the speed changing box has an oil discharging hole; a middle body is connected between the speed changing box and the compressor; a floating type labyrinth seal is embedded between the male screw rod and the middle body and a floating type labyrinth seal is embedded between the female screw rod and the middle body; each floating type labyrinth seal has a discharging hole; the middle body is provided with a discharging groove. After lubricating oil in the speed changing box and compressed air leaking from the compressor enter the floating type labyrinth seals, the lubricating oil and the compressed air enter the discharging groove through the discharging hole and are finally discharged through the discharging groove; oil-gas separation between the speed changing box and the compressor is effectively realized and the compressed air in the compressor has no oil. The oil-free dry type screw rod air compressor is simple and reasonable in structure, low in production cost, small in energy consumption and long in service life.
Description
Technical field
The utility model relates to air compressor technical field, particularly oil-free dry screw air compressor.
Background technique
Oil-free dry screw air compressor is a kind ofly can provide the stable pressurized air universal machine for pneumatic machinery or pneumatic tool, is mainly used in the fields such as aerodynamic force, gas material conveying, process gas compression, cement, chemical industry, food, medicine, weaving, glass.Oil-free dry screw air compressor comprises gearbox and compressor, and speed change gear is set in gearbox, is provided with the negative and positive screw rod cooperatively interacting in compression chamber, and positive screw rod is connected to speed change gear.For the lubricant oil that prevents from revealing in gearbox enters in compression chamber, sealing configuration need to be set conventionally.Notification number be CN202065185U's " a kind of oil free screw compressor of new structure " be that 4 road mechanical shaft seals by being arranged on negative and positive screw rod rotation position reach oil gas isolation effect, but its defect is: too many mechanical shaft seal can increase compressor manufacture cost, affect the energy consumption of compressor; In the time that 4 road mechanical shaft seals all damage, lubricant oil still can enter compression chamber, causes compressed-air actuated pollution simultaneously.
Model utility content
The purpose of this utility model is for the defect of prior art and deficiency, provide a kind of simple and reasonable, manufacture cost is lower, energy consumption is less, working life is long, the oil-free dry screw air compressor that can realize oil gas isolation.
For achieving the above object, the utility model is by the following technical solutions:
Oil-free dry screw air compressor described in the utility model, comprise gearbox, be located at the oil pump in gearbox, and the compressor and the cooler that are connected with gearbox respectively, in described compressor, be provided with screw arbor assembly, described screw arbor assembly comprises positive screw rod and female screw intermeshing and that be arranged in parallel, described compressor is provided with suction port and the port of giving vent to anger, described positive screw rod one end is arranged in suction port, the other end of sun screw rod is arranged in gearbox, one end correspondence of female screw is arranged in suction port, the other end correspondence of female screw is arranged in gearbox, in described gearbox, driving shaft is installed, described oil pump is arranged on driving shaft by oil hydraulic-pump rotor, described driving shaft is connected to described positive screw rod by secondary transmission, described positive screw rod is provided with positive screw rod synchromesh gear, female screw is provided with the female screw synchromesh gear engaging with positive screw rod synchromesh gear, described gearbox is provided with drain oil, between described gearbox and compressor, be connected with intermediate, described positive screw rod and female screw run through respectively intermediate and are arranged in gearbox, between sun screw rod and intermediate, between female screw and intermediate, be embedded with respectively floating type labyrinth seal, described floating type labyrinth seal is provided with drain boles, described intermediate is provided with the discharge launder being communicated with drain boles.
Further, described floating type labyrinth seal comprises that sealing seat and one be located at the seal ring on sealing seat, described sealing seat respectively correspondence is sheathed on positive screw rod and female screw, sealing seat is provided with positive screw rod, female screw distinguishes corresponding seal groove, described seal ring is provided with described drain boles, on described positive screw rod and female screw, be arranged with respectively axle sleeve, between described axle sleeve and seal ring, be embedded with lip seal.
Further, in described gearbox, be provided with and hold moving axis, described driving shaft is provided with one-level driving gear, hold moving axis and be provided with the one-level driven gear engaging with one-level driving gear, described one-level driving gear and one-level driven gear coordinate formation one-level speed change, hold moving axis and be provided with secondary driving gear, described positive screw rod is provided with the secondary driven gear engaging with secondary driving gear, and described secondary driving gear coordinates the described two stage speed change of formation with secondary driven gear.
Further, described cooler is provided with rotating blading, described in described rotating blading is fixedly mounted on, holds on moving axis, and described rotating blading is covered with blade cover outward.
The beneficial effects of the utility model are: by being connected intermediate is set between gearbox and compressor, and arrange respectively and positive screw rod, floating type labyrinth seal that female screw is corresponding at intermediate, in floating type labyrinth seal, be provided with drain boles, intermediate is provided with the discharge launder being communicated with drain boles.The pressurized air of revealing in lubricant oil in gearbox and compressor enters after floating type labyrinth seal, enter in discharge launder by drain boles, and finally discharge by discharge launder, effectively reach the oil gas isolation in gearbox and compressor, ensure that the pressurized air in compressor is without oil.The utility model is simple and reasonable, cost of production is lower, energy consumption is less, working life is longer.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the A visual angle sectional view structural representation of Fig. 1;
Fig. 3 is the B place structure for amplifying schematic diagram of Fig. 1.
In figure:
1, gearbox; 2, oil pump; 3, compressor; 4, cooler; 31, suction port; 32, the port of giving vent to anger; 5, positive screw rod; 6, female screw; 10, driving shaft; 21, oil hydraulic-pump rotor; 51, positive screw rod synchromesh gear; 61, female screw synchromesh gear; 7, intermediate; 8, floating type labyrinth seal; 81, drain boles; 71, discharge launder; 11, drain oil; 82, sealing seat; 83, seal ring; 821, seal groove; 9, axle sleeve; 84, lip seal; 12, hold moving axis; 101, one-level driving gear; 121, one-level driven gear; 122, secondary driving gear; 52, secondary driven gear; 41, rotating blading; 42, blade cover.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Oil-free dry screw air compressor as shown in Figure 1 to Figure 3, comprise gearbox 1, be located at the oil pump 2 in gearbox 1, and the compressor 3 and the cooler 4 that are connected with gearbox 1 respectively, in described compressor 3, be provided with screw arbor assembly, described compressor 3 is provided with suction port 31 and the port 32 of giving vent to anger, ambient air is in suction port 31 enters the compression chamber of compressor 3, after screw arbor assembly compression by the port 32 of giving vent to anger for gas equipment, described screw arbor assembly comprises positive screw rod 5 intermeshing and that be arranged in parallel and female screw 6, described positive screw rod 5 one end are arranged in suction port 31, the other end of sun screw rod 5 is arranged in gearbox 1, one end correspondence of female screw 6 is arranged in suction port 31, the other end correspondence of female screw 6 is arranged in gearbox 1.
In described gearbox 1, driving shaft 10 is installed, described oil pump 2 is arranged on driving shaft 10 by oil hydraulic-pump rotor 21, described gearbox 1 is provided with drain oil 11, drain oil 11 is for discharging the machine oil in gearbox 1, described driving shaft 10 is connected to described positive screw rod 5 by secondary transmission, in described gearbox 1, be provided with and hold moving axis 12, described driving shaft 10 is provided with one-level driving gear 101, hold moving axis 12 and be provided with the one-level driven gear 121 engaging with one-level driving gear 101, described one-level driving gear 101 and one-level driven gear 121 coordinate formation one-level speed change, hold moving axis 12 and be provided with secondary driving gear 122, described positive screw rod 5 is provided with the secondary driven gear 52 engaging with secondary driving gear 122, described secondary driving gear 122 coordinates formation two stage speed change with secondary driven gear 52.Driving shaft 10 carries out speedup by secondary transmission to positive screw rod 5.
When driving shaft 10 rotates, by oil hydraulic-pump rotor 21, oil pump 2 is worked on the one hand, oil pump 2 is lubricated to the component in gearbox 1 machine oil pumping with cooling; On the other hand, driving shaft 10 holds moving axis 12 by the drive of one-level speed change and rotates, and holds moving axis 12 and drives positive screw rod 5 to rotate by two stage speed change, and then make positive screw rod 5 and female screw 6 coordinate rotation, and the air in compressor 3 is compressed.
Described positive screw rod 5 is provided with positive screw rod synchromesh gear 51, female screw 6 is provided with the female screw synchromesh gear 61 engaging with positive screw rod synchromesh gear 51, guarantee the accurate running of screw arbor assembly by the intermeshing effect of positive screw rod synchromesh gear 51 and female screw synchromesh gear 61, ensured that positive screw rod 5 and female screw 6 can keep reasonable clearance between the two in high speed rotating.
Between described gearbox 1 and compressor 3, be connected with intermediate 7, described positive screw rod 5 and female screw 6 run through respectively intermediate 7 and are arranged in gearbox 1, between sun screw rod 5 and intermediate 7, be embedded with respectively floating type labyrinth seal 8 between female screw 6 and intermediate 7, described floating type labyrinth seal 8 is provided with drain boles 81, and described intermediate 7 is provided with the discharge launder 71 being communicated with drain boles 81.
The pressurized air of the lubricant oil in gearbox 1 and compressor 3 interior leakages enters after floating type labyrinth seal 8, enter in discharge launder 71 by drain boles 81, and finally discharge by discharge launder 71, effectively reach the oil gas isolation in gearbox 1 and compressor 3, ensured that pressurized air in compressor 3 is without oil.The utility model is simple and reasonable, cost of production is lower, energy consumption is less, and working life is longer.
Described floating type labyrinth seal 8 comprises that sealing seat 82 and one be located at the seal ring 83 on sealing seat 82, described sealing seat 82 respectively correspondence is sheathed on positive screw rod 5 and female screw 6, sealing seat 82 is provided with positive screw rod 5, female screw 6 distinguishes corresponding seal groove 821, described seal ring 83 is provided with described drain boles 81, on described positive screw rod 5 and female screw 6, be arranged with respectively axle sleeve 9, connect tightr, between described axle sleeve 9 and seal ring 83, be embedded with lip seal 84, reduced the leakage of gearbox 1 interior lubricant oil, sealing effect is better.
Described cooler 4 is provided with rotating blading 41, described in being fixedly mounted on, holds on moving axis 12 described rotating blading 41, the outer blade cover 42 that is covered with of described rotating blading 41, carry out cooling by cooler 4 to the machine oil of gearbox 1 inner loop, rotating blading 41 synchronously rotates with holding moving axis 12, and the whirlwind producing while work by rotating blading 41 is lowered the temperature to cooler 4.
The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (4)
1. oil-free dry screw air compressor, comprise gearbox (1), be located at the oil pump (2) in gearbox (1), and the compressor (3) and the cooler (4) that are connected with gearbox (1) respectively, described compressor is provided with screw arbor assembly in (3), described screw arbor assembly comprises intermeshing and positive screw rod that be arranged in parallel (5) and female screw (6), described compressor (3) is provided with suction port (31) and the port of giving vent to anger (32), described positive screw rod (5) one end is arranged in suction port (31), the other end of sun screw rod (5) is arranged in gearbox (1), one end correspondence of described female screw (6) is arranged in suction port (31), the other end correspondence of female screw (6) is arranged in gearbox (1), driving shaft (10) is installed in described gearbox (1), described oil pump (2) is arranged on driving shaft (10) by oil hydraulic-pump rotor (21), described driving shaft (10) is connected to described positive screw rod (5) by secondary transmission, described positive screw rod (5) is provided with positive screw rod synchromesh gear (51), female screw (6) is provided with the female screw synchromesh gear (61) engaging with positive screw rod synchromesh gear (51), described gearbox (1) is provided with drain oil (11), it is characterized in that: between described gearbox (1) and compressor (3), be connected with intermediate (7), described positive screw rod (5) and female screw (6) run through respectively intermediate (7) and are arranged in gearbox (1), between sun screw rod (5) and intermediate (7), between female screw (6) and intermediate (7), be embedded with respectively floating type labyrinth seal (8), described floating type labyrinth seal (8) is provided with drain boles (81), described intermediate (7) is provided with the discharge launder (71) being communicated with drain boles (81).
2. oil-free dry screw air compressor according to claim 1, it is characterized in that: described floating type labyrinth seal (8) comprises that sealing seat (82) and one be located at the seal ring (83) on sealing seat (82), described sealing seat (82) respectively correspondence is sheathed on positive screw rod (5) and female screw (6), sealing seat (82) is provided with and positive screw rod (5), the seal groove (821) that female screw (6) difference is corresponding, described seal ring (83) is provided with described drain boles (81), on described positive screw rod (5) and female screw (6), be arranged with respectively axle sleeve (9), between described axle sleeve (9) and seal ring (83), be embedded with lip seal (84).
3. oil-free dry screw air compressor according to claim 1, it is characterized in that: in described gearbox (1), be provided with and hold moving axis (12), described driving shaft (10) is provided with one-level driving gear (101), hold moving axis (12) and be provided with the one-level driven gear (121) engaging with one-level driving gear (101), described one-level driving gear (101) and one-level driven gear (121) coordinate formation one-level speed change, hold moving axis (12) and be provided with secondary driving gear (122), described positive screw rod (5) is provided with the secondary driven gear (52) engaging with secondary driving gear (122), described secondary driving gear (122) coordinates formation two stage speed change with secondary driven gear (52).
4. oil-free dry screw air compressor according to claim 3, it is characterized in that: described cooler (4) is provided with rotating blading (41), described in being fixedly mounted on, holds described rotating blading (41) moving axis (12) upper, the outer blade cover (42) that is covered with of described rotating blading (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016261.8U CN203742985U (en) | 2014-01-10 | 2014-01-10 | Oil-free dry type screw rod air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016261.8U CN203742985U (en) | 2014-01-10 | 2014-01-10 | Oil-free dry type screw rod air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742985U true CN203742985U (en) | 2014-07-30 |
Family
ID=51342793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016261.8U Expired - Lifetime CN203742985U (en) | 2014-01-10 | 2014-01-10 | Oil-free dry type screw rod air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742985U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523361A (en) * | 2016-12-09 | 2017-03-22 | 江静烈 | Dry screw compressor |
| CN108443144A (en) * | 2018-04-02 | 2018-08-24 | 宁波英德菲尔机械科技有限公司 | A kind of novel oil-free helical-lobe compressor |
| CN110566459A (en) * | 2019-09-11 | 2019-12-13 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
| WO2019197919A3 (en) * | 2018-04-11 | 2020-03-12 | Atlas Copco Airpower, Naamloze Vennootschap | Fluid-injected compressor installation |
| CN111365236A (en) * | 2020-03-27 | 2020-07-03 | 宁波英德菲尔机械科技有限公司 | Dry screw compressor |
| CN111502989A (en) * | 2019-09-29 | 2020-08-07 | 宁波市新炜流体科技有限公司 | Oil-free male and female screw |
| CN112664454A (en) * | 2021-01-04 | 2021-04-16 | 宁波市新炜流体科技有限公司 | Floating seal for oil-free dry type screw compressor and oil-free dry type screw compressor thereof |
| CN115750332A (en) * | 2022-12-08 | 2023-03-07 | 陕西大漠科技有限公司 | Eccentric rotary mixed transportation pump |
-
2014
- 2014-01-10 CN CN201420016261.8U patent/CN203742985U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523361A (en) * | 2016-12-09 | 2017-03-22 | 江静烈 | Dry screw compressor |
| CN108443144A (en) * | 2018-04-02 | 2018-08-24 | 宁波英德菲尔机械科技有限公司 | A kind of novel oil-free helical-lobe compressor |
| WO2019197919A3 (en) * | 2018-04-11 | 2020-03-12 | Atlas Copco Airpower, Naamloze Vennootschap | Fluid-injected compressor installation |
| US11841015B2 (en) | 2018-04-11 | 2023-12-12 | Atlas Copco Airpower, Naamloze Vennootschap | Fluid-injected compressor installation |
| CN110566459A (en) * | 2019-09-11 | 2019-12-13 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
| CN111502989A (en) * | 2019-09-29 | 2020-08-07 | 宁波市新炜流体科技有限公司 | Oil-free male and female screw |
| CN111365236A (en) * | 2020-03-27 | 2020-07-03 | 宁波英德菲尔机械科技有限公司 | Dry screw compressor |
| CN111365236B (en) * | 2020-03-27 | 2020-12-11 | 宁波英德菲尔机械科技有限公司 | Dry screw compressor |
| CN112664454A (en) * | 2021-01-04 | 2021-04-16 | 宁波市新炜流体科技有限公司 | Floating seal for oil-free dry type screw compressor and oil-free dry type screw compressor thereof |
| CN115750332A (en) * | 2022-12-08 | 2023-03-07 | 陕西大漠科技有限公司 | Eccentric rotary mixed transportation pump |
| CN115750332B (en) * | 2022-12-08 | 2024-01-02 | 陕西大漠科技有限公司 | Eccentric rotary mixing and conveying pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |