CN104455331A - Vertical self-lubricating heavy-load high-speed-increase gearbox - Google Patents
Vertical self-lubricating heavy-load high-speed-increase gearbox Download PDFInfo
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- CN104455331A CN104455331A CN201410515061.1A CN201410515061A CN104455331A CN 104455331 A CN104455331 A CN 104455331A CN 201410515061 A CN201410515061 A CN 201410515061A CN 104455331 A CN104455331 A CN 104455331A
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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- 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
- F16H—GEARING
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a vertical self-lubricating heavy-load high-speed-increase gearbox which can be suitable for a petrochemical plant. The vertical self-lubricating heavy-load high-speed-increase gearbox is of a three-box, three-shaft and two-stage speed increase structure, three boxes include an upper gearbox body, a middle gearbox body and a lower gearbox body, three shafts include a low-speed gear shaft, an intermediate-speed gear shaft and a high-speed gear shaft, and two-stage speed increase is achieved through the low-speed gear shaft, the intermediate-speed gear shaft and the high-speed gear shaft, namely a low-speed shaft gear and an intermediate-speed shaft pinion are meshed to be paired, and an intermediate-speed shaft big gear and a high-speed shaft gear are meshed to be paired. The vertical self-lubricating heavy-load high-speed-increase gearbox is installed vertically and is compact in structure and capable of saving space; due to the fact that the three-shaft and two-stage speed increase structure is adopted, the speed increasing ratio is higher, and output rotating speed is higher; automatic forced lubrication is achieved, high speed increasing ratio is achieved, and heavy-load high power is achieved; the speed increasing ratio can reach 12:1.
Description
Technical field
The present invention relates to a kind of gear-box, be specifically related to the high step-up gear of a kind of vertical selflubricating heavy duty, be applicable to petrochemical industry high-power vertical high speed pump or vertical and high-speed compressor supports the use.
Background technique
Step-up gear adopts horizontal installation usually, and especially heavy load, high speed increasing ratio step-up gear almost all adopt horizontal gear-box at present, and floor space is large, and needs independent forced lubricating system.Along with the develop rapidly of petrochemical industry, unit scale maximizes increasingly, and process parameter requires high, has higher requirement to pump and compressor, and claimed structure is compact, it is little to account for device space, high rotating speed, high efficiency, low energy consumption etc.Vertical and high-speed pump and vertical and high-speed compressor arise at the historic moment, and in petrochemical equipment, application is more and more.At present, existing vertical and high-speed pump and the supporting Vertical Gearbox of high speed compressor are because gear box body structure intensity is low, adopt the pairing of low module straight-tooth, two ends of rotor adopts deep groove ball bearing, make carrying lower, use that power is maximum can only, to 132 kilowatts, be difficult to meet growing user demand.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of high step-up gear of vertical selflubricating heavy duty that can be applicable to petrochemical equipment is provided.
Realize the technological scheme of the object of the invention: the high step-up gear of a kind of vertical selflubricating heavy duty, this device totally adopts three casing three axle two-stage speedup structures; Three described casings are casing in gear-box upper box, gear-box, gear-box lower box; Three described axles are low speed gear axle, intermediate gear axle, high speed shaft gear; Low speed gear axle, intermediate gear axle and high speed gear shaft form two-stage speedup;
This gear case body comprises casing in gear-box upper box, gear-box, gear-box lower box; Gear-box upper box is arranged in above gear-box casing, and gear-box lower box is arranged in below gear-box casing; Connecting bolt and holding down bolt is adopted to connect between three casings; Three casing cooperation places adopt upper gasket seal and lower seal pad to carry out end face seal;
Low speed gear axle is arranged vertically on the center line in gear-box upper box and gear-box in the middle of casing; Lower velocity shaft gear is arranged on low speed gear axle; Roller bearing one and roller bearing two are contained on low speed gear axle, are distributed in the top of lower velocity shaft gear, bottom; Bearing support steel ring one is embedded in gear-box on casing, and bearing support steel ring two is embedded on gear-box upper box, and the outer ring of roller bearing one is fixed on bearing support steel ring two, and the outer ring of roller bearing two is fixed on bearing support steel ring one;
Spindle nose oil pump is arranged in gear-box in casing central upper portion oil pump seat, and connects with low speed gear axle;
Intermediate gear axle is arranged vertically on the side of casing in gear-box upper box, gear-box, gear-box lower box; Middling speed axle small gear, middling speed axle gearwheel are assemblied in the upper and lower of intermediate gear axle respectively, sliding bearing one is arranged on gear-box upper box, coordinate with the top of intermediate gear axle, sliding bearing two is arranged on gear-box lower box, coordinates with the bottom of intermediate gear axle;
High speed gear shaft is arranged vertically on the center line in gear-box lower box and gear-box in the middle of casing; High speed shaft gear is assemblied in the middle part of high speed gear shaft, and upper sliding bearing is arranged on the lower central of casing in gear-box, and coordinates with the top of high speed gear shaft with upper thrust bearing; Properties of journal bearing lubricated is arranged on the lower central of gear-box lower box, and coordinates with the bottom of high speed gear shaft with lower thrust bearing; Upper sliding bearing and properties of journal bearing lubricated are by uniform radial load;
Described low speed gear axle, intermediate gear axle and high speed gear shaft form two-stage speedup, and namely lower velocity shaft gear engages with middling speed axle small gear and matches, and middling speed axle gearwheel and high speed shaft gears meshing match.
The high step-up gear of one as above vertical selflubricating heavy duty, spindle nose oil pump described in it is arranged on casing center in gear-box, and provide power by low speed gear axle, space, gear-box lower box bottom forms lubricating oil sump, operationally, spindle nose oil pump is pumped from lubricating oil sump by fuel sucking pipe assembly, and be pumped into roller bearing one by internal lubrication oil pipe line built-in on three casings, roller bearing two, sliding bearing one, sliding bearing two, upper sliding bearing, properties of journal bearing lubricated, upper thrust bearing, lower thrust bearing place and lower velocity shaft gear, middling speed axle small gear, middling speed axle gearwheel, high speed shaft gears meshing face place, pressure lubrication is provided.
The high step-up gear of one as above vertical selflubricating heavy duty, its oily mechanical sealing linkage ring and oily mechanical sealing static ring are arranged on gear-box lower box bottom centre's high speed gear shaft output, for gear-box provides bottom seal oil; Flinger ring and outside framework oil seal are arranged on gear-box upper box central upper portion low speed gear axle input, for gear-box provides top seal oil.
The high step-up gear of one as above vertical selflubricating heavy duty, its lubricating oil filter arranges gear-box lower box lower outside, for lubricant oil provides on-line filtration; Oil temperature gauge is arranged on gear-box lower box lower outside, for observing Lubricating Oil Temperature; Oil pressure gauge is arranged on gear-box upper box upper outside, for observing lubricant oil oil pressure.
The high step-up gear of vertical selflubricating heavy duty of the present invention, effect is: (1) vertical installation, compact structure, saves space.Pump assembly entirety adopts the design of completely airtight, complete automatic oil feed, outdoor rain-proof; Compact overall structure, lightweight, required installing space are little.(2) independently lubricate, in step-up gear, low speed gear axle wears built-in spindle nose oil pump, and is driven as bearing and gears meshing face independently provide pressure lubrication by low speed gear axle.(3) three axle two-stage speedup structures, speed increasing ratio is larger, and output speed is higher.(4) overall employing three casing three axle two-stage speedup structures, low speed gear axle, high speed gear shaft are arranged vertically within the center of step-up gear, bearing bears uniform radial load, has dissolved impeller height rotating speed cleverly and has rotated the larger centrifugal force and vibration that produce.Low speed gear axle two ends adopt spheric roller bearing; Intermediate gear axle two ends adopt sliding bearing; High speed gear shaft two ends adopt sliding bearing and thrust bearing; Three axles adopt gear to match each other, and bearing capacity significantly improves.(4) the high step-up gear of the present invention's vertical selflubricating heavy duty achieves autonomous pressure lubrication, high speed increasing ratio, heavy load are high-power; Speed increasing ratio can reach 12:1; When motor input speed is 3000rpm, output services rotating speed 36000rpm, axial carrying thrust 10MPa, use air horsepower to reach 355kW.Be specially adapted to petrochemical industry high-power vertical high speed pump or vertical and high-speed compressor supports the use.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the high step-up gear of a kind of vertical selflubricating heavy duty of the present invention;
In Fig. 1: 1. gear-box upper box; 2. casing in gear-box; 3. gear-box lower box; 4. low speed gear axle; 5. intermediate gear axle; 6. high speed gear shaft; 7. lower velocity shaft gear; 8. middling speed axle small gear; 9. middling speed axle gearwheel; 10. high speed shaft gear; 11. roller bearings one; 12. roller bearings two; 13. sliding bearings one; 14. sliding bearings two; Sliding bearing on 15.; 16. properties of journal bearing lubricated; Thrust bearing on 17.; 18. times thrust bearings; 19. spindle nose oil pumps; Gasket seal on 20.; 21. lower seal pads; 22. connecting bolts; 23. holding down bolts; 24. oily mechanical sealing linkage rings; 25. oily mechanical sealing static rings; 26. outside framework oil seals; 27. flinger rings; 28. oil pressure gauges; 29. lubricating oil filters; 30. oil temperature gauges; 31. fuel sucking pipe assemblies; 32. internal lubrication oil pipe lines; 33. lubricating oil sumps; 34. bearing support steel rings one; 35. bearing support steel rings two.
Embodiment
Below in conjunction with drawings and Examples, the high step-up gear of one of the present invention vertical selflubricating heavy duty is further described.
As shown in Figure 1, the high step-up gear of vertical selflubricating heavy duty of the present invention totally adopts three casing three axle two-stage speedup structures, and radial subdivision center line is installed.
Gear case body is three casings, is made up of casing 2, gear-box lower box 3 three part in gear-box upper box 1, gear-box.Gear case body adopts cylindrical body, inside and outside uniform stiffening rib high-strength structure.Three described axles are low speed gear axle 4, intermediate gear axle 5, high speed shaft gear 10; Low speed gear axle 4, intermediate gear axle 5 form two-stage speedup with high speed gear shaft 6.
Gear-box upper box 1 is arranged in above gear-box casing 2, and gear-box lower box 3 is arranged in below gear-box casing 2; Adopt connecting bolt 22 and holding down bolt 23 to connect between three casings, and ensure the accurate location of three casing centerings by holding down bolt 23; Casing cooperation place adopts gasket seal 20 and gasket seal 21 to carry out end face seal.
Low speed gear axle 4 is arranged vertically on gear-box upper box 1 center line middle with casing 2 in gear-box.Lower velocity shaft gear 7 is arranged on low speed gear axle 4; Roller bearing 1 and roller bearing 2 12 are contained on low speed gear axle 4, be distributed in the both sides up and down of lower velocity shaft gear 7, bearing support steel ring 1 to be embedded in gear-box on casing 2, bearing support steel ring 2 35 is embedded on gear-box upper box 1, the outer ring of roller bearing 1 is fixed on bearing support steel ring 2 35, and the outer ring of roller bearing 2 12 is fixed on bearing support steel ring 1.
Spindle nose oil pump 19 is arranged in gear-box in casing 2 central upper portion oil pump seat, and connects in low speed gear axle 4.
Intermediate gear axle 5 is arranged vertically on the side of casing 2 in gear-box upper box 1, gear-box, gear-box lower box 3; Middling speed axle small gear 8, middling speed axle gearwheel 9 are assemblied in the upper and lower of intermediate gear axle 5 respectively, sliding bearing 13 is arranged on gear-box upper box 1, coordinate with the top of intermediate gear axle 5, sliding bearing 14 is arranged on gear-box lower box 3, coordinates with the bottom of intermediate gear axle 5.
High speed gear shaft 6 is arranged vertically on gear-box lower box 3 center line middle with casing 2 in gear-box; High speed shaft gear 10 is assemblied in the middle part of high speed gear shaft 6, and upper sliding bearing 15 is arranged on the lower central of casing 2 in gear-box, and coordinates with the top of high speed gear shaft 6 with upper thrust bearing 17; Properties of journal bearing lubricated 16 is arranged on the lower central of gear-box lower box 3, and coordinates with the bottom of high speed gear shaft 6 with lower thrust bearing 18; Upper sliding bearing 15 and properties of journal bearing lubricated 16 bear uniform radial load;
Lower velocity shaft gear 7 engages with middling speed axle small gear 8 and matches, and middling speed axle gearwheel 9 engages with high speed shaft gear 10 and matches, and low speed gear axle 4, intermediate gear axle 5 form two-stage speedup with high speed gear shaft 6.Low speed gear axle 4, high speed gear shaft 6 are arranged vertically within the center line of gear-box three casing casing, and upper sliding bearing 15 and properties of journal bearing lubricated 16 bear uniform radial load, have dissolved larger centrifugal force and the vibration of the generation of high speed rotor High Rotation Speed cleverly.Low speed gear axle 4 two ends adopt spheric roller bearing 11,12; Intermediate gear axle 5 two ends adopt sliding bearing 13,14; High speed gear shaft 6 two ends adopt high rotating speed, high pulling torque (>355Kw@36000rpm) sliding bearing 15,16 and hydrodynamic thrust bearing 17,18 respectively.Three axles adopt large modulus helical gear (m>1.5) to match each other, significantly improve bearing capacity.
Spindle nose oil pump 19 is arranged on casing 2 center in gear-box, and provide power by low speed gear axle 4, space, gear-box lower box 3 bottom forms lubricating oil sump, operationally, spindle nose oil pump 19 is pumped from lubricating oil sump 33 by fuel sucking pipe assembly 31, and be pumped into roller bearing one by internal lubrication oil pipe line 32 built-in on three casings, roller bearing two, sliding bearing one, sliding bearing two, upper sliding bearing, properties of journal bearing lubricated, upper thrust bearing, lower thrust bearing place and lower velocity shaft gear, middling speed axle small gear, middling speed axle gearwheel, high speed shaft gears meshing face place, pressure lubrication is provided.
Oil mechanical sealing linkage ring 24 is arranged on gear-box lower box 3 bottom centre high speed gear shaft 6 output, for gear-box provides bottom seal oil with oily mechanical sealing static ring 25; Flinger ring 27, outside framework oil seal 26 is arranged on gear-box upper box 1 central upper portion low speed gear axle 4 input, for gear-box provides top seal oil.
Lubricating oil filter 29 arranges gear-box lower box 3 lower outside, for lubricant oil provides on-line filtration; Oil temperature gauge 30 is arranged on gear-box lower box 3 lower outside, and for observing Lubricating Oil Temperature, oil pressure gauge 28 is arranged on gear-box upper box 1 upper outside, for observing lubricant oil oil pressure.
The high step-up gear of concrete the present invention vertical selflubricating heavy duty, wherein the material of major part and trees are preferably as follows shown in table 1.
Table 1,
Feature of the present invention is that step-up gear totally adopts three casing three axle two-stage speedup structures.The center being arranged vertically within speedup box of low speed gear axle, high speed gear shaft, bearing bears uniform radial load, has dissolved impeller height rotating speed cleverly and has rotated the larger centrifugal force and vibration that produce.Low speed gear axle adopts spheric roller bearing, and intermediate gear axle and high speed gear shaft adopt high rotating speed, high pulling torque sliding bearing and hydrodynamic thrust bearing, and three axles adopt large modulus helical gear to match each other, and bearing capacity is strong.Low speed gear axle configuration spindle nose oil pump, can be each bearing place and gears meshing face during operation, provide autonomous pressure lubrication.Compact structure, speed increasing ratio is high, is specially adapted to petrochemical industry high-power vertical high speed pump or vertical and high-speed compressor supports the use.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the high step-up gear of vertical selflubricating heavy duty, is characterized in that: this device totally adopts three casing three axle two-stage speedup structures; Three described casings are casing (2) in gear-box upper box (1), gear-box, gear-box lower box (3); Three described axles are low speed gear axle (4), intermediate gear axle (5), high speed shaft gear (10); Low speed gear axle (4), intermediate gear axle (5) and high speed gear shaft (6) form two-stage speedup;
This gear case body comprises casing (2) in gear-box upper box (1), gear-box, gear-box lower box (3); Gear-box upper box (1) is arranged in above gear-box casing (2), and gear-box lower box (3) is arranged in below gear-box casing (2); Connecting bolt (22) and holding down bolt (23) is adopted to connect between three casings; Three casing cooperation places adopt upper gasket seal (20) and lower seal pad (21) to carry out end face seal;
Low speed gear axle (4) is arranged vertically on gear-box upper box (1) center line middle with casing (2) in gear-box; Lower velocity shaft gear (7) is arranged on low speed gear axle (4); Roller bearing one (11) and roller bearing two (12) are contained on low speed gear axle (4), are distributed in the top of lower velocity shaft gear (7), bottom; Bearing support steel ring one (34) is embedded on casing in gear-box (2), bearing support steel ring two (35) is embedded on gear-box upper box (1), the outer ring of roller bearing one (11) is fixed on bearing support steel ring two (35), and the outer ring of roller bearing two (12) is fixed on bearing support steel ring one (34);
Spindle nose oil pump (19) is arranged in casing in gear-box (2) central upper portion oil pump seat, and connects with low speed gear axle (4);
Intermediate gear axle (5) is arranged vertically on the side of casing (2) in gear-box upper box (1), gear-box, gear-box lower box (3); Middling speed axle small gear (8), middling speed axle gearwheel (9) are assemblied in the upper and lower of intermediate gear axle (5) respectively, sliding bearing one (13) is arranged on gear-box upper box (1), coordinate with the top of intermediate gear axle (5), sliding bearing two (14) is arranged on gear-box lower box (3), coordinates with the bottom of intermediate gear axle (5);
High speed gear shaft (6) is arranged vertically on gear-box lower box (3) center line middle with casing (2) in gear-box; High speed shaft gear (10) is assemblied in the middle part of high speed gear shaft (6), upper sliding bearing (15) is arranged on the lower central of casing in gear-box (2), and coordinates with the top of high speed gear shaft (6) with upper thrust bearing (17); Properties of journal bearing lubricated (16) is arranged on the lower central of gear-box lower box (3), and coordinates with the bottom of high speed gear shaft (6) with lower thrust bearing (18); Upper sliding bearing (15) and properties of journal bearing lubricated (16) bear uniform radial load;
Described low speed gear axle (4), intermediate gear axle (5) and high speed gear shaft (6) form two-stage speedup, namely lower velocity shaft gear (7) engages with middling speed axle small gear (8) and matches, and middling speed axle gearwheel (9) engages with high speed shaft gear (10) and matches.
2. the high step-up gear of one according to claim 1 vertical selflubricating heavy duty, it is characterized in that: described spindle nose oil pump (19) is arranged on casing in gear-box (2) center, and provide power by low speed gear axle (4), gear-box lower box (3) space, bottom forms lubricating oil sump, operationally, spindle nose oil pump (19) is pumped from lubricating oil sump (33) by fuel sucking pipe assembly (31), and be pumped into roller bearing one (11) by built-in internal lubrication oil pipe line (32) on three casings, roller bearing two (12), sliding bearing one (13), sliding bearing two (14), upper sliding bearing (15), properties of journal bearing lubricated (16), upper thrust bearing (17), lower thrust bearing (18) place and lower velocity shaft gear (7), middling speed axle small gear (8), middling speed axle gearwheel (9), high speed shaft gear (10) Surface of action place, pressure lubrication is provided.
3. the high step-up gear of one according to claim 1 vertical selflubricating heavy duty, it is characterized in that: oily mechanical sealing linkage ring (24) and oily mechanical sealing static ring (25) are arranged on gear-box lower box (3) bottom centre high speed gear shaft (6) output, for gear-box provides bottom seal oil; Flinger ring (27) and outside framework oil seal (26) are arranged on gear-box upper box (1) central upper portion low speed gear axle (4) input, for gear-box provides top seal oil.
4. the high step-up gear of one according to claim 1 vertical selflubricating heavy duty, is characterized in that: lubricating oil filter (29) arranges gear-box lower box (3) lower outside, for lubricant oil provides on-line filtration; Oil temperature gauge (30) is arranged on gear-box lower box (3) lower outside, for observing Lubricating Oil Temperature; Oil pressure gauge (28) is arranged on gear-box upper box (1) upper outside, for observing lubricant oil oil pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515061.1A CN104455331A (en) | 2014-09-29 | 2014-09-29 | Vertical self-lubricating heavy-load high-speed-increase gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515061.1A CN104455331A (en) | 2014-09-29 | 2014-09-29 | Vertical self-lubricating heavy-load high-speed-increase gearbox |
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| CN104455331A true CN104455331A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410515061.1A Pending CN104455331A (en) | 2014-09-29 | 2014-09-29 | Vertical self-lubricating heavy-load high-speed-increase gearbox |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286609A (en) * | 2016-08-09 | 2017-01-04 | 浙江金澳兰机床有限公司 | A kind of punch press transmission shafts socket end seals structure |
| CN108644362A (en) * | 2018-07-05 | 2018-10-12 | 江苏华光双顺机械制造有限公司 | Vertical radial extrusion pipe-making machine special gear box |
| CN109296739A (en) * | 2018-10-30 | 2019-02-01 | 中国北方发动机研究所(天津) | Sliding bearing pressure oil is every empty oil guide structure |
| CN112901758A (en) * | 2021-01-19 | 2021-06-04 | 重庆永进重型机械成套设备有限责任公司 | Gear box, transmission device and aerospace experiment table |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286609A (en) * | 2016-08-09 | 2017-01-04 | 浙江金澳兰机床有限公司 | A kind of punch press transmission shafts socket end seals structure |
| CN108644362A (en) * | 2018-07-05 | 2018-10-12 | 江苏华光双顺机械制造有限公司 | Vertical radial extrusion pipe-making machine special gear box |
| CN109296739A (en) * | 2018-10-30 | 2019-02-01 | 中国北方发动机研究所(天津) | Sliding bearing pressure oil is every empty oil guide structure |
| CN112901758A (en) * | 2021-01-19 | 2021-06-04 | 重庆永进重型机械成套设备有限责任公司 | Gear box, transmission device and aerospace experiment table |
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Effective date of registration: 20161201 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Applicant before: Beijing Inst. of Aerospace Dynamics |
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Application publication date: 20150325 |