CN204873654U - Differential planetary reducer is used to hoist - Google Patents

Differential planetary reducer is used to hoist Download PDF

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Publication number
CN204873654U
CN204873654U CN201520648381.4U CN201520648381U CN204873654U CN 204873654 U CN204873654 U CN 204873654U CN 201520648381 U CN201520648381 U CN 201520648381U CN 204873654 U CN204873654 U CN 204873654U
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China
Prior art keywords
gear
output
clutch
cylindric
fixed
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Withdrawn - After Issue
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CN201520648381.4U
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Chinese (zh)
Inventor
王淑妍
朱慧云
王新国
朱君
唐文献
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Jiangsu University of Science and Technology
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Jiangsu University of Science and Technology
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Abstract

The utility model relates to a speed reducer, differential planetary reducer who is applied to the integrated design of being convenient for on the hoist especially. A differential planetary reducer is used to hoist comprises bevel gear differential gear train module, dead axle train module and output speed governing module. The utility model discloses a bevel gear differential gear train, have safe and reliable, can realize four kinds of rotational speeds output, small that space utilization is high, is convenient for realize advantages such as integrated design.

Description

A kind of hoisting crane differential planetary reducer
Technical field
The utility model relates to a kind of reductor, is particularly a kind ofly applied to differential planetary reducer hoisting crane being convenient to integrated design.
Background technology
Hoisting crane be widely used in harbour, building industry, steel plant and other need the industry of hoisting heavy.Reductor is critical component hoisting crane being guaranteed its job safety that hoists reliably is carried out, and hoisting crane adopts different lifting velocities under zero load and loading condition simultaneously, can increase work efficiency, and saves production time, reduces unnecessary energy consumption.
Present stage, in order to improve reliability and the safety of hoisting crane, generally all configure two parallel-axes gears reductors, the two reductor parallel-connection structure of double-motor is adopted to drive, when this mode can guarantee that a motor breaks down, another motor has continued crane lifting service, adds the reliability of hoisting crane work.But the click complex structure that this parallel driving structure comprises, load-carrying capacity is limited, and fault rate also remains high; Must bear the load that two motors work simultaneously during single machine operation, therefore power of motor is selected needs up to the normal twice used simultaneously.Above reason causes existing jack up unit always great, and volume is large, and complex structure, power of motor surplus is excessive, and fault rate is high, limited reliability.
The transmitting ratio of single output speed reducer current is in addition fixed value, the lifting of hoisting crane and the adjustment of lowering velocity are mainly by electrically regulating, especially in hoister in large tonnage, this directly causes hoisting of sky hook and transfers consuming time long, inefficiency, also easily causes unnecessary energy resource consumption.
The literature search of prior art is found:
(1) China Patent Publication No.: CN103982598A, the day for announcing: 2014.10.01, patent name is: hoisting crane differential planetary reducer.This patent adopts a double-motor input differential planetary gear train to slow down, then by two gear pair transmitting torques, when an electrical fault, still complete crane lifting service with a half speed, the reliability of reductor is greatly improved.But pinion carrier adopts one end to retrain as load mechanism, the other end export mode, although therefore symmetrical configuration, actual loading is also asymmetric; The secondary institute of final-stage gear takes up space excessive, and be improved space in structural compactness; Only can realize single speed to export, use alerting ability poor, greatly reduce work efficiency.
(2) China Patent Publication No.: CN103086292A, the day for announcing: 2013.05.08, patent name is: a kind of double speed list output speed reducer and use winch and the hoisting crane of this reductor, the patent describe a kind of double speed list output speed reducer, its principle of work is slowed down by two planet circular systems, realized the selection of high low velocity by high speed brake axle and low speed brake axle.But necessary brake axle brake equipment must be external, must cause the oversize of total system, make this reductor slightly not enough in integrated; Secondly, owing to adopting single motor to come in and go out, compared with inputting with many motors, its reliability, safety are significantly improved space.
(3) China Patent Publication No.: CN101880015B, authorize day: 2012.10.10, patent name is: a kind of hoisting speed reducer for hoisting crane.This patent adopts two groups of planetary wheeling mechanisms to realize slowing down, and drg is arranged in the permanent seat of housing, and the reel of hoisting mechanism can directly be sleeved on the cylindrical shell of housing, and compact conformation, volume is little, and space availability ratio is high.But this device only can realize single speed and export, and can not select output speed flexibly according to load situation; Only be provided with the input of single motor, compare many motors, reliability, safety have much room for improvement.
Summary of the invention
The utility model aims to provide a kind of hoisting crane speed reduction gearing, the basis of the power of motor that do not double meets crane safety failure-free demand, hoisting crane can be made to carry out speed governing according to load condition simultaneously, structure is convenient to carry out integrated design to the lifting mechanism of motor, reductor and reel composition.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of hoisting crane differential planetary reducer, comprises reel, arranges bevel geared differential gear train, fixed shaft gear train and output speed adjusting module in described reel;
Described bevel geared differential gear train comprises a pair input shaft be supported on respectively by bearing in two double-arc spline frames, and the dead in line of described a pair input shaft, each input shaft is separately installed with a sun wheel finishing bevel gear cuter by key;
The cylindric output planetary frame between described a pair input shaft is contained in by bearing carrier ring, cylindric output planetary frame is provided with two pivot shafts, two pivot shaft deads in line and with the axes normal of described input shaft, each pivot shaft is provided with a satellite gear finishing bevel gear cuter respectively by bearing, intermeshes between described sun wheel finishing bevel gear cuter and satellite gear finishing bevel gear cuter;
Described fixed shaft gear train comprises fixed axis gear, output inner gear and dead axle intermediary wheel, wherein, two mouths of described cylindric output planetary frame is fixedly connected with a described fixed axis gear respectively; Each described fixed axis gear is in transmission connection by described dead axle intermediary wheel and an output inner gear; One end of described output inner gear is arranged in double-arc spline frame by bearing, the other end by bearings on described cylindric output planetary frame;
Described output speed adjusting module comprises driving drum, first clutch, second clutch, supply unit and controller, and wherein, described driving drum is positioned at the outside of output inner gear, and two ends and output inner gear are connected by bearing and use oil sealing sealing; Described first clutch is fixed on output inner gear, and second clutch is fixed on cylindric output planetary frame, and described first clutch and second clutch are equipped with supply unit, described supply unit and described controller control linkage; Described driving drum is fixedly connected with described reel.
Further, described first clutch comprises two, and the basal disc seat of two described firsts clutch is enclosed within the outer wall of two output inner gear medial extremitys respectively, and the reaction plate of two described firsts clutch is fixed with the end face of screw and two output inner gears respectively; Described second clutch comprises two, the basal disc seat group of two described second clutch is enclosed within two installation positions at the middle part of cylindric output planetary frame respectively, and the reaction plate of two described second clutch is fixed with the installation end face of screw and cylindric output planetary frame respectively.
Further, described dead axle intermediary wheel is at least two right, and at least two pairs of dead axle intermediary wheels are evenly arranged along the circumference of described fixed axis gear.
Further, interference fit is adopted between the mouth of described fixed axis gear and cylindric output planetary frame.
Further, described fixed axis gear and cylindric both output planetary framves are structure as a whole.
Further, one end of described a pair input shaft is all stretched out outside disk frame and is docked with propulsion source respectively by coupler, and coupler is all furnished with drg.
Further, described propulsion source is motor.
Advantage of the present utility model and beneficial effect:
1) bevel geared differential gear train of the utility model employing, ensure when an electrical fault, only rely on another motor to have continued the operation that hoists, and the motor of normal work can not be made to occur that horsepower output suddenlys change, meet the demand that speed reducer of crane is safe and reliable;
2) dual output of the utility model employing, four kinds of rotating speeds can be realized to export under single, double motor and dual output combination, make lifting mechanism can carry out speed governing according to load condition, when hoisting weight, low speed is selected to export, when zero load or underloading, select speedy carding process, save production time, improve production efficiency, decrease unnecessary energy consumption;
3) the utility model total is arranged symmetrically with, and reel directly arranges that to be sleeved on the decelerator body external, and volume is little, and space availability ratio is high, the lifting mechanism compact overall structure that motor, reductor and reel are formed, and is convenient to realize integrated design.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
In figure, 1 and 1' be motor; 2 and 2' be coupler; 3 and 3' be drg; 4 and 4 ' is input shaft; 5 and 5 ', 31 and 31', 32 and 32', 44 and 44' be cylindrical roller bearing; 6 and 6', frame; 7 and 7', 18 and 18 ' be sleeve; 8 and 8', 25 and 25', 37 and 37' be roller bearing end cap; 9 and 9 ' is seal ring; 10 and 10 ', 27 and 27', 39 and 39' be key; 11 and 11' be sun wheel finishing bevel gear cuter; 12 and 12 ', 28 and 28', 40 and 40' be back-up ring; 13 and 13 ', 29 and 29', 41 and 41' be shaft end nut; 14 is cylindric output planetary frame; 15 and 15', 17 and 17 ' be tapered roller bearing; 16 and 16 ' is satellite gear finishing bevel gear cuter; 19 and 19 ' is planet wheel spindle terminal block lid; 20 and 20' be pivot shaft; 21 and 21' be fixed axis gear; 22 and 22 ', 34 and 34' be gear wheel shaft; 23 and 23', 35 and 35' be deep groove ball bearing; 24 and 24', 36 and 36' be trip ring; 26 and 26', 38 and 38 ' be dead axle intermediary wheel; 30 and 30' be output inner gear; 33 and 33', 45 and 45' be oil sealing; 42 and 42' be first clutch, 43 and 43' be second clutch; 46 is driving drum; 47 is reel.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, for an embodiment of a kind of hoisting crane differential planetary reducer of the present utility model, described a pair input shaft 4,4 ' be connected respectively with two motors 1,1 ' by coupler 2,2 ', be supported in frame 6,6 ' by cylindrical roller bearing 5,5 ', two groups of symmetrical cylindrical roller bearing 5,5 ' inner ring sleeves 7,7' carry out axial location, and cylindrical roller bearing 5,5 ' outer ring adopts roller bearing end cap 8,8 ' compress and use seal ring 9,9 ' to seal; Two sun wheel finishing bevel gear cuters 11,11 ' are connected with two input shafts 4,4 ' mouth key respectively, and are respectively equipped with back-up ring 12,12 ' and two shaft end nut 13,13 ' in the inner side of two sun wheel finishing bevel gear cuters 11,11 ' and are compressed;
The two ends of cylindric output planetary frame 14 are respectively by a pair tapered roller bearing 15, 15 ' is sleeved on two input shafts 4, on 4 ', two satellite gear finishing bevel gear cuters 16, 16 ' by two tapered roller bearings 17, 17 ' is arranged on two pivot shafts 20, on 20', and at two satellite gear finishing bevel gear cuters 16, the outside of 16 ' is provided with two sleeves 18, 18 ', inner side is provided with two planet wheel spindle terminal block lids 19, 19 ', two planet wheel spindle terminal block lids 19, 19 ' compresses tapered roller bearing 17 respectively, 17 ' inner ring and with two bevel planet gears 16, gap is left between 16 ', two sleeves 18, 18 ' and two planet wheel spindle terminal block lids 19, 19 ' retrains two bevel planet gears 16 jointly, the axial location of 16 ', two pivot shafts 20,20 ' through the mounting hole of cylindric pinion carrier 14, and are fixedly connected with it.
Two sun wheel finishing bevel gear cuters 11,11' and the cylindric output planetary frame 14 be sleeved on two input shafts 4,4 ' and form bevel geared differential gear train by two satellite gear finishing bevel gear cuters 16,16 ' that two tapered roller bearings 17,17 ' are arranged on cylindric output planetary frame 14.
Described gear wheel shaft 22,22 ', 34,34' all by deep groove ball bearing 23,23', 35,35' is supported in two frames 6,6' respectively, and move axially with trip ring 24,24 ', 36,36 ' limiting gear axle 22,22 ', 34,34 ', with roller bearing end cap 25,25 ', 37,37 ' compression axis bearing outer-ring; Four dead axle intermediary wheels 26,26 ', 38,38 ' respectively with four gear wheel shafts 22,22', 34,34' driving end key is connected, four gear wheel shafts 22,22', 34, outside 34' driving end by four shaft end rings 28,28', 40,40' and shaft end nut 29,29', 41,41' compresses four dead axle intermediary wheels 26,26 ', 38,38 '; The external side end of two output inner gears 30,30' is connected with two frames 6 and 6' respectively by two cylindrical roller bearings 32,32', and seals with oil sealing 33,33', and medial extremity is connected with cylindric output planetary frame 14 by cylindrical roller bearing 31,31'.
Four dead axle intermediary wheels 26,38, two fixed axis gears 21 on 26', 38' and cylindric output planetary frame 14,21' and two output inner gear 30,30' intermesh formation fixed shaft gear train.
Described output speed adjusting module comprise driving drum 46, first clutch 42,42 ', second clutch 43,43', supply unit and controller, wherein, described driving drum 46 is positioned at the outside of two output inner gears 30,30 ', and two ends are connected by bearing with two output inner gears 30,30 ' respectively and use oil sealing sealing; Two firsts clutch 42,42 ' are separately fixed on two output inner gears 30,30 ', two second clutch 43,43' are separately fixed on cylindric output planetary frame 14, and described controller is powered or dead electricity to two described firsts clutch 42,42 ', two described second clutch 43,43' for controlling described supply unit.
Two described firsts clutch 42, the basal disc seat group of 42' are enclosed within the outside of two output inner gears 30,30' medial extremity respectively, and the reaction plate of two firsts clutch 42,42' is fixed with the end face of screw and two output inner gears 30,30' respectively; The basal disc seat group of two second clutch 43,43' is enclosed within two installation positions at the middle part of cylindric output planetary frame 14 respectively, and the reaction plate of two second clutch 43,43' is fixed with the installation end face of screw and cylindric output planetary frame 14 respectively; Described driving drum 46 is positioned at the outside of two output inner gears 30,30 ', and two ends are connected with two output inner gears 30,30 ' bearing respectively and use oil sealing 45,45 ' to seal.
As the further preferred version of a kind of hoisting crane of the utility model differential planetary reducer, two fixed axis gears 21, between 21' and the mouth of cylindric output planetary frame 14, adopt interference fit, also the two can be processed into a component, to ensure the rotating speed of two fixed axis gears 21,21' and cylindric output planetary frame 14 synchronous axial system.
As the further preferred version of a kind of hoisting crane of the utility model differential planetary reducer, the dead axle intermediary wheel of described fixed shaft gear train part can arrange according to concrete usage condition two to or multipair, multipair dead axle intermediary wheel is uniformly distributed in the circumference of apical axis gear.
As the further preferred version of a kind of hoisting crane of the utility model differential planetary reducer, the outer rim shape of described cylindric output planetary frame 14 changes according to the shape of the basal disc seat group of selected centrifugal clutch.
The working process of the utility model reductor is:
Owing to there is bevel geared differential gear train in retarder kernel, its transmitting ratio formula is
i 13 H = n 1 - n H n 3 - n H = ( - 1 ) Z 2 Z 3 Z 1 Z 2 = - Z 3 Z 1 = - 1
In formula, Z 1and Z 3be respectively the number of teeth of sun wheel finishing bevel gear cuter 11 and 11 ', and Z 1=Z 3, n 1and n 3be respectively the rotating speed of sun wheel finishing bevel gear cuter 11 and 11 '; Z 2represent the number of teeth of bevel planet gear, n hrepresent the rotating speed of cylindric output planetary frame 14.
When two motors 1 and 1' all normally work, power is respectively by a pair input shaft 4 and 4' input, two sun wheel finishing bevel gear cuters 11 and 11 ' fixed-axis rotation, drive two satellite gear finishing bevel gear cuters 16 and 16 ' respectively while two pivot shafts 20 and 20 ' rotation, with cylindric output planetary frame 14 around two output shafts 4 and the revolution of 4 ' line of centers, now, the motion of cylindric output planetary frame 14 is synthesized by the motion of two finishing bevel gear cuter sun wheels 11 and 11 ', and its size is
n H = n 1 + n 3 2
' in one when breaking down, coupler 2 or 2 ' upper corresponding drg 3 or 3 when two motors 1 or 1 ' by its locking, then there is n 1=0 or n 3=0, the rotating speed of cylindric output planetary frame 14 becomes
n H = n 3 2 Or n H = n 1 2
The motor of normal work still works on; differential gear train is converted to planet circular system; the rotating speed of cylindric output planetary frame 14 is reduced to the half of normal work drive motor rotating speed; the horsepower output of normal work drive motor is not undergone mutation; motor is played a protective role; whole lifting mechanism normally runs, and just speed reduces.
Two fixed axis gears, 21,21 ' and four dead axle intermediary wheels 26,38,26 ', 38 ' on cylindric output planetary frame 14 engage, four dead axle intermediary wheel respectively with two output inner gears 30,30 ' engagements again, drive two output inner gears 30,30 ' around the line of centers fixed-axis rotation of two input shafts 4,4 '.
When reel needs to slowly run in heavy duty, two firsts clutch 42 in output speed adjusting module, the friction disc in 42' eject, compress with driving drum 46, the friction disc of two second clutch 43,43 ' is regained simultaneously, and cylindric output planetary frame 14 is interrupted with the transmission of driving drum 46; Two output inner gears 30,30' drive driving drum 46 to rotate, thus make the reel 47 be fixedly connected with driving drum 46 can realize slowly running with the rotating speed of output inner gear.
When reel 47 knocks off condition in underloading or sky, high speed rotating need be realized, to export in speed adjusting module two firsts clutch 42, the friction disc of 42' regains, friction disc in two second clutch 43,43' ejects, compress with driving drum 46, the transmission of output inner gear and driving drum 46 is simultaneously interrupted; Cylindric output planetary frame 14 drives driving drum 46 to rotate, thus makes the reel 47 be fixedly connected with driving drum 46 realize high speed rotating with the rotating speed of cylindric output planetary frame 14.

Claims (7)

1. a hoisting crane differential planetary reducer, is characterized in that, comprises reel, arranges bevel geared differential gear train, fixed shaft gear train and output speed adjusting module in described reel;
Described bevel geared differential gear train comprises a pair input shaft be supported on respectively by bearing in two double-arc spline frames, and the dead in line of described a pair input shaft, each input shaft is separately installed with a sun wheel finishing bevel gear cuter by key;
The cylindric output planetary frame between described a pair input shaft is contained in by bearing carrier ring, cylindric output planetary frame is provided with two pivot shafts, two pivot shaft deads in line and with the axes normal of described input shaft, each pivot shaft is provided with a satellite gear finishing bevel gear cuter respectively by bearing, intermeshes between described sun wheel finishing bevel gear cuter and satellite gear finishing bevel gear cuter;
Described fixed shaft gear train comprises fixed axis gear, output inner gear and dead axle intermediary wheel, wherein, two mouths of described cylindric output planetary frame is fixedly connected with a described fixed axis gear respectively; Each described fixed axis gear is in transmission connection by described dead axle intermediary wheel and an output inner gear; One end of described output inner gear is arranged in double-arc spline frame by bearing, the other end by bearings on described cylindric output planetary frame;
Described output speed adjusting module comprises driving drum, first clutch, second clutch, supply unit and controller, and wherein, described driving drum is positioned at the outside of output inner gear, and two ends and output inner gear are connected by bearing and use oil sealing sealing; Described first clutch is fixed on output inner gear, and second clutch is fixed on cylindric output planetary frame, and described first clutch and second clutch are equipped with supply unit, described supply unit and described controller control linkage; Described driving drum is fixedly connected with described reel.
2. a kind of hoisting crane differential planetary reducer according to claim 1, it is characterized in that, described first clutch comprises two, the basal disc seat of two described firsts clutch is enclosed within the outer wall of two output inner gear medial extremitys respectively, and the reaction plate of two described firsts clutch is fixed with the end face of screw and two output inner gears respectively; Described second clutch comprises two, the basal disc seat group of two described second clutch is enclosed within two installation positions at the middle part of cylindric output planetary frame respectively, and the reaction plate of two described second clutch is fixed with the installation end face of screw and cylindric output planetary frame respectively.
3. a kind of hoisting crane differential planetary reducer according to claim 1, is characterized in that, described dead axle intermediary wheel is at least two right, and at least two pairs of dead axle intermediary wheels are evenly arranged along the circumference of described fixed axis gear.
4. a kind of hoisting crane differential planetary reducer according to claim 1, is characterized in that, adopts interference fit between the mouth of described fixed axis gear and cylindric output planetary frame.
5. a kind of hoisting crane differential planetary reducer according to claim 1, is characterized in that, described fixed axis gear and cylindric both output planetary framves are structure as a whole.
6. a kind of hoisting crane differential planetary reducer according to claim 1, is characterized in that, one end of described a pair input shaft is all stretched out outside disk frame and docked with propulsion source respectively by coupler, and coupler is all furnished with drg.
7. a kind of hoisting crane differential planetary reducer according to claim 6, is characterized in that, described propulsion source is motor.
CN201520648381.4U 2015-08-25 2015-08-25 Differential planetary reducer is used to hoist Withdrawn - After Issue CN204873654U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201520648381.4U CN204873654U (en) 2015-08-25 2015-08-25 Differential planetary reducer is used to hoist

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Publication Number Publication Date
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CN201520648381.4U Withdrawn - After Issue CN204873654U (en) 2015-08-25 2015-08-25 Differential planetary reducer is used to hoist

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105110221A (en) * 2015-08-25 2015-12-02 江苏科技大学 Differential planetary reducer for crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105110221A (en) * 2015-08-25 2015-12-02 江苏科技大学 Differential planetary reducer for crane
WO2017032222A1 (en) * 2015-08-25 2017-03-02 江苏科技大学 Differential planetary reducer for crane

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Granted publication date: 20151216

Effective date of abandoning: 20170623