CN103374359B - Horizontal cycloid-rack driven coke pushing device - Google Patents

Horizontal cycloid-rack driven coke pushing device Download PDF

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Publication number
CN103374359B
CN103374359B CN201210131640.7A CN201210131640A CN103374359B CN 103374359 B CN103374359 B CN 103374359B CN 201210131640 A CN201210131640 A CN 201210131640A CN 103374359 B CN103374359 B CN 103374359B
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coke pushing
coke
pushing ram
pushing
gear
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CN103374359A (en
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吴声震
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Zhou Fenlan
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吴小杰
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Abstract

The invention relates to the technical field of coke pushing devices of coking plants and provides a horizontal cycloid-rack driven coke pushing device. The device comprises a coke pushing support, a supporting roll, coke pushing rods and a transmission device comprising a rotor shaft, eccentric bearings, cycloidal gears, a pin wheel housing, wheel pins and an output mechanism. The device is characterized in that the two ends of an output shaft are supported in inner holes of front and rear racks by bearings; a drive gear between the two bearings is connected with the output shaft by a spline; the cross section of a long rack meshed with the drive gear is shaped like a Chinese character tu; the long rack is arranged in corresponding long grooves of the coke pushing rods; upper edge surfaces of the two sides of the long grooves limit the two shoulders shaped like a Chinese character tu of the rack; the rack pushes the coke pushing rods to move forward when the drive gear rotates clockwise, and the coke pushing rods are moved backward when the drive gear rotates counterclockwise; the phase difference between the gears on the two sides and the middle gear is 180 degrees; and the width of the gears on the two sides is half that of the middle gear. The device has the beneficial effects that when the coke pushing rods work, the gear-rack meshing accuracy can be ensured, thus reducing vibration of the coke pushing rods; the weight is reduced by 45-60%, and the price is reduced by 50-65%; and the gyrating mass is in the state of static balance or dynamic balance, so that the transmission is stable.

Description

Horizontal cycloid-rack drives coke pusher
[technical field]
The present invention relates to pit kiln coke pusher technical field, a kind of horizontal cycloid-rack drives coke pusher.
[background technology]
The research > > of the paper < < 6m of coke oven factory of Baogang vibration of pushing rod of coke oven points out: during the reciprocal work done of pushing ram in coke pusher, can produce vibration, its major cause is after pushing ram is heated, progressively to have the collapse distortion of waist > > trend of < <, pushing ram distortion makes gear-tooth bar sideshake and bottom clearance substantial deviation theoretical value (sideshake 3.5-5, bottom clearance 8-12): the anterior tooth bar sideshake 6.8-7.2 of place of actual measurement pushing ram, bottom clearance 14.8, middle part sideshake 7.5-7.8, bottom clearance 18, rear portion sideshake 7.6-8, bottom clearance 17.2 (units: mm).
Vibrating in various degree all appears in the 6m coke oven coke-pusher bar of domestic Baosteel, Wuhan Iron and Steel Plant, Handan Iron and Steel Co, elder brother's steel, Shan Jiaoji Baogang etc., when serious, produce resonance and cause that bottom brick becomes flexible, cracks, the positive displacement of jamb brick and combustion chamber string leak etc. (6m coke oven principal dimension: the long 15140mm of coking chamber, high 5650mm, average wide 450mm);
Coke pusher comprises pushing ram, coke pushing bearing and transmission mechanism: motor YZR355L110kW, n 1=582rpm, n 2=14.6rpm, pushing ram (comprising coke pushing head, crawler shoe) is bearing in above support roll, in support roll, have three groups with side roller to prevent pushing ram sideslip, pushing ram is a body structure, tooth bar is located at the top of bar, in pushing ram enters stove after, in order to support pushing ram, be provided with crawler shoe, its bottom height is adjustable.The speed setting that adopts magnetic eddy-current brake WZ355L and hydraulic pressure block brake YWZ-400/90-10 to carry out coke pushing whole process is impacted coke pushing to realize nothing.For pushing ram in the anti-incinerator that has a power failure suddenly, be provided with hand gear.
Transmission mechanism is tri-grades of decelerations of < < cone tooth+secondary reducer with hardened tooth surface > >: i=2.045 * 3.962 * 4.923=39.9 gear one tooth bar (m=40), realize pushing ram forward and back, coke pushing speed 27.4m/min, stroke 25770mm.
[summary of the invention]
When the object of the invention provides a kind of work done, gear-tooth bar stable drive, pushing ram do not vibrate and low by price, efficiency is identical single-stage cycloidal replaces horizontal cycloid-rack drives coke pusher of background technology.
Technical scheme:
(A) driving gear and output shaft are with spending strong being slidably connected, make driving gear there is certain amount of floating in order to sideshake and the bottom clearance of compensation and tooth bar, long and narrow tooth bar is placed in the corresponding elongated slot of pushing ram, running fit, tooth bar bottom supporting is in slide roller, slide roller is connected in pushing ram bottom, therefore in the reciprocal work done of pushing ram, when there is " waist collapses " distortion in pushing ram, because tooth bar is not to be fixed on pushing ram to make tooth bar can not produce moderate finite deformation, the sideshake of gear-tooth bar and bottom clearance still guarantee the accuracy of mesh in theoretical value, the steady transmission of gear-tooth bar, greatly reduce gear-tooth bar surging force and pushing ram vibration.
(B) use the efficiency of single-stage cycloidal: 1-12 page: cycloid efficiency eta=0.9~0.98 ≈ 0.94 on 6 pages of Zhu's filial piety record < < Gear Transmission Design handbook > >, < < gear handbook > >, thereby can replace background technology < < cone tooth+secondary reducer with hardened tooth surface > >.
[beneficial effect], according to background technology, its creativeness is embodied in:
(1) in the reciprocal work done of pushing ram, guarantee the gear-tooth bar accuracy of mesh, greatly reduce surging force and pushing ram vibration;
(2) background technology bearing capacity 72000Nm and DCY-500 type reducer with hardened tooth surface (seeing JB/T9002-1999) are suitable, 113930 yuan of the heavy 4340kg of machine, prices; Weight saving 45-60% of the present invention, price can reduce 50-65%.Theoretical Calculation data are as follows: center circle radius R z=275, contact coefficient Y 1max=1.43, B=21,42
Contact stress σ jmax=(8914/R z) { Y 1maxt 2/ B} 0.5=1605 (MPa)
Allowable contact stress [σ h]=1617 (MPa) (HB600-600) (see Xu Hao < < mechanical design handbook > > volume 1.4-289 page);
(3) breast wheel thickness is both sides uniform thickness wheel twices, 180 ° of the two phase differential, thereby the rotating mass on input shaft is in statical equilibrium, dynamic equilibrium state, makes transmission more steady; The gear teeth and half imbedding needle pin can not break, thereby supporting capacity is large, and reliability is high.
[accompanying drawing explanation] Fig. 1. embodiment of the present invention structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of horizontal cycloid-rack drives coke pusher, comprise coke pushing bearing 1, support roll 2, pushing ram 3 and transmission mechanism, described pushing ram 3 comprises coke pushing head, crawler shoe, described pushing ram 3 is bearing on support roll 2 for body structure, in support roll 2, have three groups with side roller to prevent pushing ram 3 sideslips, support roll 2 is connected in the bottom of coke pushing bearing 1, described transmission mechanism comprises rotor axis of electric 21 and is contained in first on rotor spindle 21, two capacity eccentric bearings 20, 19, Cycloidal Wheel, pin wheel housing 23, needle pin 24 and output mechanism, output mechanism comprises output shaft 11, pin 14 and column sleeve, it is characterized in that:
Described output shaft 11 two ends use respectively first, two bearings 10, 12 be bearing in before, afer bay 9, 13 endoporus, first, two bearings 10, driving gear 8 between 12 is slidably connected with output shaft 11 use splines, make driving gear 8 there is certain amount of floating in order to sideshake and bottom clearance between compensation and long tooth bar 5, driving gear 8 and long tooth bar 5 engagements, the driving gear of background technology cantilever arrangement 8 is improved to freely supported structure and has improved the accuracy of mesh of gear-tooth bar, described long tooth bar 5 transverse section are " protruding " shape, be placed in the corresponding elongated slot of pushing ram 3, running fit, two shoulders that long and narrow tooth bar 5 " protruding " shape is faced on the upper edge of elongated slot two sides carry out spacing, upper along gapped between face and " protruding " shape two shoulders, long tooth bar 5 bottom supportings are in slide roller 4, slide roller 4 is connected in pushing ram 3, before described, afer bay 9, 13 are fastened on step-down gear base plate 7, described step-down gear base plate 7, footing 6 and coke pushing bearing 1 are integrally togather in turn, its principle of work is: when driving gear 8 turns clockwise, long tooth bar 5 promotes pushing ram 3 and moves forward, otherwise, when driving gear 8 turns counterclockwise, long tooth bar 5 promotes pushing ram 3 and moves backward, because long tooth bar 5 is not to be fixed on pushing ram 3, therefore when there is " waist collapses " in pushing ram 3, the sideshake of gear-tooth bar and bottom clearance are still in theoretical value, the identical Cycloidal Wheel 16 and 180 ° of middle Cycloidal Wheel 17 phase differential in both sides in described Cycloidal Wheel, both sides Cycloidal Wheel 16 is taken turns half of Cycloidal Wheel 17 in the middle of wide equaling, thereby the rotating mass on input shaft is in statical equilibrium, dynamic equilibrium state, make transmission more steady, column sleeve 15, 18 correspond respectively to Cycloidal Wheel 16, 17, described pin wheel housing 23 is connected in afer bay 13 endoporus, needle pin 24 half is embedded in pin wheel housing 23, be called and partly bury toothing, make needle pin there is very high bending force (referring to 828 pages of Zhu's filial piety record < < Gear Transmission Design handbook > >).

Claims (1)

1. horizontal cycloid-rack drives coke pusher, comprises coke pushing bearing (1), support roll (2), pushing ram (3) and transmission mechanism, described pushing ram (3) comprises coke pushing head, crawler shoe, described pushing ram (3) is bearing on support roll (2) for body structure, in support roll (2), have three groups with side roller to prevent pushing ram (3) sideslip, support roll (2) is connected in the bottom of coke pushing bearing (1), and transmission mechanism comprises rotor axis of electric (21) and is contained in first on rotor spindle (21), two capacity eccentric bearings (20, 19), Cycloidal Wheel, pin wheel housing (23), needle pin (24) and output mechanism, output mechanism comprises output shaft (11), pin (14) and column sleeve, is characterized in that: described output shaft (11) two ends use respectively first, two bearings (10, 12) before being bearing in, afer bay (9, 13) endoporus, device is first, two bearings (10, 12) driving gear between (8) is slidably connected with spline with output shaft (11), driving gear (8) and long tooth bar (5) engagement, described long tooth bar (5) transverse section is " protruding " shape, be placed in the corresponding elongated slot of pushing ram (3), running fit, two shoulders that long tooth bar (5) " protruding " shape is faced on the upper edge of dependence elongated slot two sides carry out spacing, upper along gapped between face and " protruding " shape two shoulders, long tooth bar (5) bottom supporting is in slide roller (4), slide roller (4) is connected in pushing ram (3), described before, afer bay (9, 13) be fastened on step-down gear base plate (7) above, described step-down gear base plate (7), footing (6) and coke pushing bearing (1) are integrally togather in turn, the identical Cycloidal Wheel (16) and 180 ° of middle Cycloidal Wheel (17) phase differential in both sides in described Cycloidal Wheel, both sides Cycloidal Wheel (16) take turns wide equal in the middle of Cycloidal Wheel (17) half, column sleeve (15, 18) correspond respectively to Cycloidal Wheel (16, 17), described pin wheel housing (23) is connected in afer bay (13) endoporus, and needle pin (24) is partly embedded in pin wheel housing (23).
CN201210131640.7A 2012-04-25 2012-04-25 Horizontal cycloid-rack driven coke pushing device Active CN103374359B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2250357Y (en) * 1996-02-08 1997-03-26 史正高 Horizontal coke pushing machine
CN201801487U (en) * 2010-09-09 2011-04-20 江苏泰隆减速机股份有限公司 Transmission device for coke pusher
CN201818748U (en) * 2010-09-19 2011-05-04 杜明乾 Anti-backlash transmission case for linear motion on rack

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5797957A (en) * 1980-12-12 1982-06-17 Honda Motor Co Ltd Gear device
JPH034784B2 (en) * 1987-06-08 1991-01-23 Tooru Hirano

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2250357Y (en) * 1996-02-08 1997-03-26 史正高 Horizontal coke pushing machine
CN201801487U (en) * 2010-09-09 2011-04-20 江苏泰隆减速机股份有限公司 Transmission device for coke pusher
CN201818748U (en) * 2010-09-19 2011-05-04 杜明乾 Anti-backlash transmission case for linear motion on rack

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
7m 焦炉推焦车的结构特征;樊海莲等;《煤化工》;20111031(第5期);第24-27页 *
樊海莲等.7m 焦炉推焦车的结构特征.《煤化工》.2011,(第5期),

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