CN105443740A - Diversion output type water cooling few-tooth-difference gearbox of earth pressure balance shield machine - Google Patents
Diversion output type water cooling few-tooth-difference gearbox of earth pressure balance shield machine Download PDFInfo
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- CN105443740A CN105443740A CN201510909794.8A CN201510909794A CN105443740A CN 105443740 A CN105443740 A CN 105443740A CN 201510909794 A CN201510909794 A CN 201510909794A CN 105443740 A CN105443740 A CN 105443740A
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- gear
- bearing
- diversion
- inner cylinder
- gearbox
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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
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
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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
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of speed reduction special for shield machines, in particular to a diversion output type water cooling few-tooth-difference gearbox of an earth pressure balance shield machine. The diversion output type water cooling few-tooth-difference gearbox comprises a vertical machine seat, an inner barrel and a transmission part, and is characterized in that the input end of the inner barrel and a large end cover are connected into a whole; flanges on two sides of the vertical machine seat are connected with an outer flange of the inner barrel and an annular end surface of the large end cover respectively to form a closed interlayer in an enclosing mode; a water inlet and a water outlet are formed in the top and the bottom of the vertical machine seat respectively; the output end of the inner barrel supports an output shaft through a bearing; an inner hole of the input end of the inner barrel is connected with an inner gear ring; a butterfly valve is arranged at the bottom of the large end cover and comprises a valve rod and a valve body, the end of the valve body is connected with a detachable oil cup, and magnetic objects are arranged in the cup; a transmission gear is engaged with two diversion gears, the diversion gears are engaged with a large inner gear ring of a cutter disc and supported on core shafts through bearings, and the two core shafts are fastened to the output end surface of the inner barrel. The diversion output type water cooling few-tooth-difference gearbox of the earth pressure balance shield machine has the beneficial effects that the bearing capacity of the gearbox is doubled due to a diversion engagement pair; the heat power is improved; iron powder mixed in lubricating oil can be taken out at regular times.
Description
Technical field
The present invention relates to balancing earth-pressure shielding machine special retarding technical field, is the improvement of " soil pressure balance shield machine cycloid speed reducer " ZL201110091247.5, a kind of balancing earth-pressure shielding machine shunting output type water-cooled few teeth difference speed reducer.
The present invention introduces two and shunts gear between speed reducer output drive gear and cutter head of shield machine bull gear, makes speed reducer bearing power increase one times, and thus can reduce by half assembling, saves a considerable third-level planetary reduction gear foreign exchange expenditure.
Background technique
National 863 " full face tunnel boring machine key technology " sub-problem " balancing earth-pressure shielding machine large power gearbox ", rests in company's hands such as German extra large Rake, Wei Erte, U.S. Luo Binsi and Mitsubishi for a long time.
Balancing earth-pressure shielding machine is most advanced tunnel construction machinery on our times, and " retarder " is then the core component of shield machine, the long-term dependence on import of China.Balancing earth-pressure shielding machine price several ten million, works in rugged environment throughout the year out of doors, therefore with it the greatest difficulty of supporting retarder be to use reliable, the life-span is long and height lightweight (small volume, high pulling torque).
" balancing earth-pressure shielding machine large power gearbox " third-level planetary cascaded structure of adopting abroad, the light weight degree of external product is far above domestic existing planetary reducer.Such as, " balancing earth-pressure shielding machine large power gearbox " National 863 plan (2007 ~ 2010) that certain company bears, its structure and parameter is imitative from external product: first order 25-20-65, second level 27-21-69, third level 24-24-72, output speed n=10.64rpm, output torque T=76237Nm, model machine external form Φ 570 × 900, weight 1012kg, be respectively 61% and 55% (seeing University Of Chongqing's thesis for the doctorate " the large power gearbox Numerical Simulation Analysis based on balancing earth-pressure shielding machine ") of NBD-560 type second planetary reducer.
The National 863 project " high power third-level planetary reduction gear for balancing earth-pressure shielding machine " (200810231114.1) of patent of invention " soil pressure balance shield machine cycloid speed reducer " the ZL201110091247.5 ratio of the present inventor, its beneficial effect is: axial dimension is than third-level planetary reduction gear shortening 45 ~ 55%, low cost of manufacture.
Summary of the invention
The present invention is the improvement of " soil pressure balance shield machine cycloid speed reducer " ZL201110091247.5, a kind of balancing earth-pressure shielding machine shunting output type water-cooled few teeth difference speed reducer, and object is: can reduce by half assembling speed reducer; Improve thermal power and regularly remove irony powder in oil, increasing the service life.Few teeth difference transmission full name Involute planetary gear drive with small teeth difference, advantage is: technique is simple, cost is low, noise is little.Three stage planetary reduction can be replaced: the calculated example of " gear handbook " upper 7-126 page: efficiency eta=0.944 (Z by single-stage few teeth difference
d=2), (Z is calculated according to 100 examples
d=2,3,4) η=0.934,0.96,0.97, is drawn.
The present invention adopt single-stage few teeth difference replace the beneficial effect of three stage planetary reduction be shorten axial dimension, structure is simple.
Research finds, my invention " soil pressure balance shield machine cycloid speed reducer " ZL201110091247.5 ignores most important " thermal power " problem, do not relate to the technological scheme solving retarder thermal power in patent of invention, paper " earth pressure balanced shield, EPBS planetary reducer thermal equilibrium analysis and temperature rise control research " (15 pages) is pointed out:
" shield machine planetary reducer transmitted power is large, and volume is little, and the underground construction closed, radiating condition is poor, if the heat produced can not be dissipated in surrounding environment in time, lubricating oil temperature can be caused too high, On Gear Scoring was lost efficacy.”
Paper 63 pages: " earth pressure balanced shield, EPBS planetary reducer is in enclosed space, adopts which kind of method the heat of generation to be dissipated in time, normally runs significant to guarantee shield machine.”
In order to realize the object of patent of invention, the present invention adopts following technological scheme:
The present invention adopts following technological scheme:
(technological scheme one) inner cylinder input end and large end cap are integrally connected, two side flange circles of vertical support are connected fastening with inner cylinder outward flange circle and large end cap toroidal surface respectively, thus enclose and be connected into airtight interlayer, vertical support top is provided with water intake, bottom is provided with water outlet, circulating water is introduced the cooling of casing closed interlayer, closed interlayer cooling capacity is large, heat diffusion area throughout whole casing, easy to adjust, reliability is high, cost is low, the effect improving thermal power is much better than outer pouring formula;
(technological scheme two) inner cylinder output terminal endoporus second and third bearing supporting output shaft, the input end endoporus of inner cylinder connects ring gear, and thus meshing zone is the active region of power;
Butterfly valve is provided with bottom (technological scheme three) large end cap, butterfly valve comprises valve rod and cylinder valve body, the circular butterfly plate that valve rod connects can rotate and realize open and close in cylinder valve body circular channel, the end of cylinder valve body connects detachable lubricating cup, be magnetic in lubricating cup thing, can regularly be taken out by the irony powder be mixed in Run lubricating oil;
Gears meshing is shunted in (technological scheme four) driving gear and both sides, and shunting gear engages with the large-scale ring gear of circular cutting disk.
The theoretical foundation of the technical solution adopted in the present invention is as follows:
(A) theoretical foundation improving thermal power is cooled with circulating water: the technology of Patent Office of the People's Republic of China disclosed " a kind of shield machine recycled water cooling process " (ZL201310094392.8): by installing spraying tube and fan on circulating water pool, the object of circulating water is reached again by heat radiation waterfall ladder, be cooled with circulating water to take away the heat produced in shield machine system cyclic process, thus ensure that each vitals of shield machine runs in predetermined temperature, reduce equipment failure;
(B) theoretical research shows, the engagement pair in transmission, occurs that flank of tooth loss is inevitable:
Upper 103 pages of (a) Shanghai Machinery College " Fundamentals of Machine Design ": " gear transmission equipment is pulled down after using a period of time can find that wear trace appears in tooth surface; lubricating under poor or the impure condition of lubricant oil especially; wear phenomenon is more obvious; gear teeth root weares and teares, and seriously, comparatively gearwheel is serious again in small gear wearing and tearing at comparatively top.Wearing and tearing cause owing to having active force and relative sliding between surface of contact.There is relative sliding length Δ S between flank profil, shown that flank profil will be worn and torn.”
(b) Zhu Xiaolu " Gear Transmission Design handbook " 94 pages: in power gear transmission, tooth surface due to skimming wear, burn into overheated etc., thus occur that flank of tooth loss is inevitable.
(C) butterfly valve makes open-shut device with circular butterfly plate and rotates a kind of valve opening, cut out and regulate fluid passage with valve rod.The butterfly plate of butterfly valve is installed on the diametric(al) of pipeline.In butterfly valve body cylindrical channel, disc butterfly plate rotates around valve rod axis, and angle of swing is 0 ° ~ 90 °, and when rotating to 90 °, valve is standard-sized sheet then.
Advantageous Effects the present invention can produce following Advantageous Effects known to those skilled in the art:
(1) shunt engagement pair and make speed reducer bearing power increase one times, the assembling speed reducer that thus can reduce by half saves foreign exchange;
(2) circulating water is introduced the cooling of casing closed interlayer, because closed interlayer cooling capacity is large, heat diffusion area throughout whole casing, easy to adjust, reliability is high, low cost of manufacture, the effect most importantly improving thermal power is much better than outer pouring formula;
(3) regularly the iron powder in Run lubricating oil can be taken out, improve Run lubricating oil oil product, thus prolonged deceleration case working life.
Accompanying drawing explanation
Fig. 1 embodiment of the present invention structural representation
Fig. 2 the present invention is that five speed reduceres " output drive gear-shunting gear-cutter head of shield machine bull gear " extremely flow schematic diagram
Embodiment encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1, a kind of balancing earth-pressure shielding machine shunting output type water-cooled few teeth difference speed reducer, comprise vertical support 1, inner cylinder 15 and the driving component be located in inner cylinder 15, driving component comprises input shaft 11, output shaft 2, planet wheel, pin 7, ring gear 17 and be located at input shaft 11 axle stretch end, the double-eccentric shaft of supporting planetary wheel holds 10, input shaft 11 clutch shaft bearing 12 is bearing in large end cap 14 endoporus, large end cap 14 is connected to inner cylinder 15 input end, output shaft 2 axle stretch end connection for transmission gear 3, described planet wheel four is identical, comprise the planet wheel 8 that the identical planet wheel of both sides phase place 9 is identical with middle two panels phase place, both sides planet wheel 9 and middle planetary take turns 8 phase difference 180 °, one end close-fitting of described pin 7 is on output shaft 2 disk 6, the other end close-fitting of pin 7 all carries ring 18, pin 7 is established the three identical circles 21 that all carry are placed between two between planet wheel respectively, it is characterized in that:
Described inner cylinder 15 input end and large end cap 14 are integrally connected, two side flange circles of vertical support 1 are connected fastening with inner cylinder 15 outward flange circle and large end cap 14 toroidal surface respectively, thus enclose and be connected into airtight interlayer, described vertical support 1 top and bottom are respectively equipped with entery and delivery port 13,4, circulating water is introduced the cooling of casing closed interlayer, closed interlayer cooling capacity is large, heat diffusion area throughout whole casing, reliability is high, cost is low, the effect improving thermal power is much better than outer pouring formula;
Described inner cylinder 15 output terminal endoporus second and third bearing 5,6 supporting output shaft 2, the input end endoporus of inner cylinder 15 connects ring gear 17;
Butterfly valve is provided with bottom described large end cap 14, butterfly valve comprises valve rod 22 and cylinder valve body 24, the circular butterfly plate that valve rod 22 connects can rotate realization and open in cylinder valve body 24 circular channel, close, the end of cylinder valve body 24 connects detachable lubricating cup 23, be magnetic in lubricating cup 23 thing, butterfly valve makes open-shut device with circular butterfly plate and rotate with valve rod to open, close and regulate a kind of valve of fluid passage, the butterfly plate of butterfly valve is installed on the diametric(al) of pipeline, in butterfly valve body cylindrical channel, disc butterfly plate rotates around valve rod axis, angle of swing is 0 ° ~ 90 °, when rotating to 90 °, valve is standard-sized sheet then, thus can regularly the irony powder be mixed in Run lubricating oil be taken out: rotation valve rod-circular butterfly plate closes non-meshing zone oil sump circular channel, pull down lubricating cup, pour out the irony powder of Magnetic Materials absorption in lubricating cup, improve Run lubricating oil oil product, thus prolonged deceleration case working life.
Described balancing earth-pressure shielding machine shunting output type water-cooled few teeth difference speed reducer, it is characterized in that: described driving gear 3 identical with its both sides first, two shunting gears 16, 20 engagements, described first, two shunting gears 16, 20 engage with the large-scale ring gear of shield machine circular cutting disk, make speed reducer bearing power increase one times, thus can reduce by half assembling, save the foreign exchange expenditure of a considerable third-level planetary reduction gear, described first shunting gear 16 bearing is bearing in the first axle, second shunting gear 20 bearing is bearing in the second axle 19, two axles are fastened on the end face of inner cylinder 15 output terminal.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (2)
1. a balancing earth-pressure shielding machine shunting output type water-cooled few teeth difference speed reducer, comprise vertical support (1), inner cylinder (15) and the driving component be located in inner cylinder (15), driving component comprises input shaft (11), output shaft (2), cycloid wheel, pin (7), ring gear (17) and be located at input shaft (11) axle stretch end, the double-eccentric shaft of supporting cycloid wheel holds (10), input shaft (11) clutch shaft bearing (12) is bearing in large end cap (14) endoporus, large end cap (14) is connected to inner cylinder (15) input end, described output shaft (2) axle stretch end connection for transmission gear (3), described planet wheel four is identical, comprise the planet wheel (8) that the identical planet wheel of both sides phase place (9) is identical with middle two panels phase place, described both sides planet wheel (9) and middle planetary take turns (8) phase difference 180 °, one end close-fitting of described pin (7) is on output shaft (2) disk (6), the other end close-fitting of described pin (7) all carries ring (18), pin (7) is separately established the three identical circles (21) that all carry are placed between two between planet wheel respectively, it is characterized in that:
The both sides inner flange circle of described vertical support (1) is connected fastening with inner cylinder (15) outward flange circle and large end cap (14) annulus end face respectively, thus enclose and be connected into closed interlayer, vertical support (1) top and bottom are respectively equipped with entery and delivery port (13,4);
Described inner cylinder (15) output terminal endoporus second and third bearing (5,6) supporting output shaft (2), the input end endoporus of inner cylinder (15) connects ring gear (17);
Described large end cap (14) bottom is provided with butterfly valve, butterfly valve comprises valve rod (22) and cylinder valve body (24), the circular butterfly plate that valve rod (22) connects can rotate and realize open and close in cylinder valve body (24) circular channel, the end of cylinder valve body (24) connects detachable lubricating cup (23), and be magnetic in lubricating cup (23) thing.
2. balancing earth-pressure shielding machine shunting output type water-cooled few teeth difference speed reducer according to claim 1, it is characterized in that: first and second identical with its both sides of described driving gear (3) is shunted gear (16,20) and engaged, first and second shunting gear (16,20) described is engaged with the large-scale ring gear of shield machine circular cutting disk, described first shunting gear (16) is bearing in the first axle with bearing, second shunting gear (20) is bearing in the second axle (19) with bearing, and two axles are fastened on the end face of inner cylinder (15) output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909794.8A CN105443740A (en) | 2015-11-30 | 2015-11-30 | Diversion output type water cooling few-tooth-difference gearbox of earth pressure balance shield machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909794.8A CN105443740A (en) | 2015-11-30 | 2015-11-30 | Diversion output type water cooling few-tooth-difference gearbox of earth pressure balance shield machine |
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| Publication Number | Publication Date |
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| CN105443740A true CN105443740A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510909794.8A Pending CN105443740A (en) | 2015-11-30 | 2015-11-30 | Diversion output type water cooling few-tooth-difference gearbox of earth pressure balance shield machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468757A (en) * | 2017-12-04 | 2018-08-31 | 陈伟 | The deceleration device for making the big bearing of shield machine reduce |
| CN108468782A (en) * | 2017-12-04 | 2018-08-31 | 陈伟 | Shield machine few teeth difference speed reducer |
-
2015
- 2015-11-30 CN CN201510909794.8A patent/CN105443740A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468757A (en) * | 2017-12-04 | 2018-08-31 | 陈伟 | The deceleration device for making the big bearing of shield machine reduce |
| CN108468782A (en) * | 2017-12-04 | 2018-08-31 | 陈伟 | Shield machine few teeth difference speed reducer |
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| C06 | Publication | ||
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Application publication date: 20160330 |