CN203098759U - Double-module high-precision planetary reducing mechanism - Google Patents
Double-module high-precision planetary reducing mechanism Download PDFInfo
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- CN203098759U CN203098759U CN 201320098766 CN201320098766U CN203098759U CN 203098759 U CN203098759 U CN 203098759U CN 201320098766 CN201320098766 CN 201320098766 CN 201320098766 U CN201320098766 U CN 201320098766U CN 203098759 U CN203098759 U CN 203098759U
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Abstract
The utility model relates to a double-module high-precision planetary reducing mechanism. Currently, the high-precision planetary reducing mechanism which is compact in structure, small in meshing gap and strong in bearing capacity does not exist. The planetary reducing mechanism is characterized by comprising an output shaft, an output shaft oil seal, a secondary gear ring shell body, a plurality of secondary planetary gears, a primary gear ring shell body, a middle planetary carrier, a plurality of primary planetary gears, a primary sun gear, a coupler bearing, a clip-type locking ring, a rear cover, a secondary sun wheel, a bearing, a coupler and a secondary planetary carrier. The output shaft is installed in a secondary gear box shell body, the secondary planetary carrier is fixed at one end of the output shaft, the secondary planetary gears are all installed on the secondary planetary carrier, the secondary sun wheel is installed in a secondary sun wheel cavity of the second planetary carrier, the primary planetary gears are meshed with a primary gear ring, and the primary planetary gears are all meshed with the primary sun gear. The planetary reducing mechanism is compact in structure, small in meshing gap and high in concentricity and precision of repeated locating.
Description
Technical field
The utility model relates to a kind of planetary gear speed reducing mechanism, especially relate to the high-accuracy planetary gear speed reducing mechanism of a kind of double modulus, main effect is to increase output torque and reduce output speed, is widely used in space flight and aviation, naval vessel, numerical control machine tool, cutting welding equipment, plastics machinery, engineering machinery, metallurgical machinery, petroleum machinery, marine machinery, building machinery, manipulator, robot, pharmaceutical equipment, printing equipment, package packing machine, textile dyeing machinery, the parking apparatus etc.
Background technique
It is improper that the planetary speed reducer gear parameter is selected, contact ratio is too small, and profile modification is improper or do not have correction of the flank shape, can influence the unreasonable structure of gear-box, assembling is eccentric, contact precision is low, and the parallelism of axle is poor, the rigidity deficiency of axle, bearing and supporting, the rotating accuracy of bearing is not high and the gap is improper, the fluctuation of input torque and load torque, the torsional oscillation of axle system, and the balance of transmission etc.
Along with the planetary speed reducer technology rapid development, high-accuracy planetary speed reducer is little, in light weight by feat of volume, compact structure, bearing capacity is big, transmission efficiency is high, running is steady and strong shock resistance, and the outstanding features such as synthetic and decompositions that can realize moving, obtained application widely.
In the accurate Gear Planet Transmission in modern times, in order to satisfy the usability under the fully loaded transportation condition, improve the bearing capacity of speed reducer, just need to improve the strength of gear teeth of involute cylindrical gear, satisfy the demand of heavy duty.In the heavy-duty gear transmission, interior external gear pump pair must satisfy the requirement of intensity life-span and meshing quality.At present, in order to satisfy the secondary required life-span and the quality requirement of interior external gear pump of high-accuracy planetary speed reducer and heavy-duty gear,, can make following some improvement usually according to practical condition.
1, increases the gear width: when the transmission external diameter is constant, increase the internal gear width, can effectively strengthen gear capacity.But, so just increased the length of whole high-accuracy planetary gear speed reducing mechanism, just can not satisfy the requirement of little, the in light weight and compact structure of the volume of high-accuracy planetary gear speed reducing mechanism.
2, knuckle-tooth and column gear transmission: be a kind of cylindrical helical gear drive, belong to a kind of form of cylindrical gears, helical gear has the bearing capacity height, and is assorted relatively recklessly in production and processing, the requirement on machining accuracy height, and difficulty is big, and cost of production increases.Can not satisfy the low and high requirement of precision of high-accuracy planetary gear speed reducing mechanism cost.
3, increase module and increase tooth-shape angle: high-accuracy planetary gear speed reducing mechanism outside dimension will remain unchanged, and needs to increase bearing capacity, and large module gear can improve the gear resistance to flexure, and resistance to flexure is the important indicator of gear carrying energy.But the cost that this has just increased high-accuracy planetary speed reducer has increased volume, has increased the heavyweight material, so can not be applicable in the design of gears of high-accuracy planetary gear speed reducing mechanism.
4, increase the gear ring allowable contact stress: in high-accuracy planetary gear speed reducing mechanism, ring gear is lower than external gear hardness, and material is also inequality, and processing heat treatment also has gap, and it is the transmission contact stress of sun gear-planet wheel that planetary speed reducer is checked intensity; Sun gear-planet wheel flexural stress; Planet wheel-ring gear transmission contact stress.The gear ring allowable contact stress lost efficacy usually at first.Want to increase bearing capacity, the material that gear ring will choose just can reach the gear ring allowable contact stress, has so just increased the cost of high-accuracy planetary speed reducer greatly.
High-accuracy planetary gear speed reducing mechanism has improved output torque in reduction of speed, the moment of torsion export ratio is taken advantage of reduction speed ratio by input, has reduced the inertia of load simultaneously, inertia be reduced to reduction speed ratio square.
At present also do not have a kind of usage requirement that can satisfy various high-precision equipments, and have compact structure, the back lash is little, the precision height of concentricity and resetting, the high-accuracy planetary gear speed reducing mechanism that bearing capacity is strong.
The model utility content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provide a kind of reasonable in design, compact structure, the back lash is little, the precision height of concentricity and resetting, bearing capacity is strong, can satisfy the high-accuracy planetary gear speed reducing mechanism of double modulus of various high-precision equipment usage requirements.
The technical scheme in the invention for solving the above technical problem is: the structural feature of the high-accuracy planetary gear speed reducing mechanism of this double modulus is: comprise output shaft, the output shaft oil sealing, secondary gear ring housing, several secondary planetary gears, fore bearing, rear bearing, the primary annulus housing, the middle planetary frame, several primary planet pinions, the bonnet oil sealing, the one-level sun gear, the joiner bearing, the clamp ring of letter folder formula, the locking hexagon socket head cap screw, bonnet, the secondary sun gear, bearing, joiner and secondary planet frame, described secondary gear ring housing comprises secondary gear tank shell and secondary gear ring, described secondary gear ring is fixed in the secondary gear tank shell, described primary annulus housing comprises one-level housing and primary annulus, and described primary annulus is fixed in the one-level housing; Described one-level housing is fixed on the bonnet, and described secondary gear tank shell is fixed on the one-level housing, and described bonnet oil sealing is installed in the bonnet, and described output shaft oil sealing is installed in the secondary gear tank shell; Described output shaft is installed in the secondary gear tank shell by fore bearing, this output shaft cooperates with the output shaft oil sealing, described secondary planet frame is fixed on an end of output shaft, this secondary planet frame is installed in the secondary gear tank shell by rear bearing, is provided with secondary sun gear chamber in the described secondary planet frame; Several secondary planetary gears are installed on the secondary planet frame, and secondary planetary gear all meshes with the secondary gear ring; One end of described secondary sun gear by Bearing Installation in the secondary sun gear chamber of secondary planet frame, described secondary planetary gear all meshes with the secondary sun gear, described middle planetary frame is fixed on the other end of secondary sun gear, several primary planet pinions are installed on the middle planetary frame, and primary planet pinion all meshes with primary annulus; Described joiner is installed in the bonnet by the joiner bearing, and this joiner cooperates with the bonnet oil sealing, and described joiner, bonnet oil sealing, bonnet, one-level housing, secondary gear tank shell, output shaft oil sealing and output shaft form a complete airtight cavity; The clamp ring of described simple folder formula is fixed on of joiner by the locking hexagon socket head cap screw, and described one-level sun gear is fixed on the other end of joiner, and this one-level sun gear is arranged in the one-level housing, and described primary planet pinion all meshes with the one-level sun gear.Make thus to the utlity model has high performance-price ratio, be widely used, economical and practical, advantages such as the life-span is long, under controls such as stepper motor, direct current generator, actuating motor and oil hydraulic motor are used, can bring into play the favorable rigidity effect, accurate in locating control, on the running platform, possessed low back clearance, high efficiency, high input speed, high output torque, running is steady, characteristics such as low noise.Joiner in the utility model, the bonnet oil sealing, bonnet, the one-level housing, the secondary gear tank shell, output shaft oil sealing and output shaft form a complete airtight cavity, secondary planetary gear, fore bearing, rear bearing, the middle planetary frame, primary planet pinion, the one-level sun gear, the secondary sun gear, bearing and secondary planet frame all are arranged in this airtight cavity fully, it is the high-accuracy planetary gear speed reducing mechanism employing of the double modulus internal cavity complete closed design in the utility model, energy dust protection and rainwater, the IP64 security level makes the internal cavity and the outside complete closed of planetary speed reducer.Be provided with fore bearing and rear bearing in the utility model, duplex bearing has been disposed in the rotation of output shaft and secondary planet frame, adopted big span design, made sun gear import the planet wheel optimum precision into, guaranteed that the input shaft of motor and joiner reach best concentricity effect; The big span location and installation of duplex bearing has guaranteed that input shaft running steadily, reduces noise, balanced motor shaft input torque, and the size that has guaranteed output torque is steadily.
Preferably, secondary gear ring housing described in the utility model is an integral structure.Secondary gear tank shell and secondary gear ring adopt the design of integral type, compact structure, the precision height, output torque is big, and integral structure guarantees not have the assemblage gap deviation, guaranteed the concentricity of product, strengthened the precision of product, good seal performance has increased the overall precision and the intensity of gear-box, beautify outward appearance, can promote the overall image of product.
Preferably, primary annulus housing described in the utility model is an integral structure.One-level housing and primary annulus adopt the design of integral type, compact structure, the precision height, output torque is big, and integral structure guarantees not have the assemblage gap deviation, guaranteed the concentricity of product, strengthened the precision of product, good seal performance has increased the overall precision and the intensity of gear-box, beautify outward appearance, can promote the overall image of product.
Preferably, primary planet pinion described in the utility model comprises one-level roller, one-level planet wheel and several one-level needle roller, and described one-level planet wheel is installed on the one-level roller by several one-level needle rollers, and described one-level roller is fixed on the middle planetary frame.This shows that the full pin needle bearing that does not contain retainer has been adopted in the transmission of the primary planet pinion in the utility model, by increasing area of contact to improve structural rigidity and output torque.
Preferably, secondary planetary gear described in the utility model comprises secondary roller, secondary planet wheel and several secondary needle roller, and described secondary planet wheel is installed on the secondary roller by several secondary needle rollers, and described secondary roller is fixed on the secondary planet frame.This shows that the full pin needle bearing that does not contain retainer has been adopted in the transmission of the secondary planetary gear in the utility model, by increasing area of contact to improve structural rigidity and output torque.
Preferably, middle planetary frame described in the utility model is fixed on the other end of secondary sun gear by flat key., simple in structure, easy for installation between middle planetary frame and the secondary sun gear by the flat key close-fitting, the Location accuracy height, firmly intensity is big.
Preferably, one-level sun gear described in the utility model and joiner are integral structure.One-level sun gear and joiner one have guaranteed processing precision of products and intensity, and the rigidity of the sun gear that whole gear bar produced is strong, and concentricity is accurate.
Preferably, simple folder formula described in the utility model clamp ring is a circular ring, be provided with the adjusting mouth one in this letter folder formula clamp ring, this adjusting mouth is axial distribution, the described both sides of regulating mouth are provided with bolt hole, the axis of this bolt hole is vertical with the adjusting mouth, and described locking hexagon socket head cap screw is connected in the bolt hole; Also be provided with six road dashpots in the clamp ring of described simple folder formula uniformly.The input shaft clamp ring is assembled together the planetary reduction gear function quickly and accurately with the drive motor of being joined, to guarantee under high input speed in conjunction with the concentricity of interface and the transmission of power of zero back clearance.Again can be steady in a long-term, work reliably, planetary speed reducer is furnished with fast accurately joiner locking device, this design details is, joiner has hollow to clamp the lock shaft circle, the groove that its sun gear and input shaft connection place have six roads all to distribute, and on cylindrical, have one to clamp the lock shaft circle, impel the stress deformation degree even in the clamping process, the assurance clamping force is even, more science is, institute's configuration lock collar makes folded axle can be placed on any lock shaft position of joiner safely, do not influence the input output moment of torsion, make the input end of motor output shaft and speed reducer better ordinatedly, and, simplified installation in validity and Security that assembling has improved the motor output shaft folder simultaneously widely, also reduced noise, the work of the function long-term stability of guaranteeing to slow down.
Preferably, the quantity of secondary planetary gear described in the utility model and primary planet pinion is three.Make that thus structural design of the present utility model is more reasonable.
Preferably, output shaft described in the utility model is a dual-gripper output shaft structure.Output shaft uses dual-gripper, makes one-level planet wheel and secondary planet wheel to turn round more stably, does not influence output torque, reduces noise, guarantees maximum moment of torsion rigidity, makes that speed reducer can work steady in a long-term.
The utility model compared with prior art has the following advantages and effect: guaranteed the concentricity of product, strengthened the precision of product, sealability has increased the bulk strength of gear-box.The outward appearance of product attractive in appearance is installed in the overall aesthetic that all can promote product on any product.The utlity model has high torsion, shock-resistant, highi degree of accuracy, high rigidity, high capacity, high efficiency, at a high speed than, long-life, low inertia, low vibration, low noise, hang down temperature rise, little, the easy for installation and pinpoint characteristics of structure.
1, high torsion is shock-resistant, and the mechanism of planetary pinion is different from the kind of drive of traditional parallel gears.And the high-accuracy planetary gear reducing mechanism of the utility model has three more large size and gear surface of contact 360 degree uniform loads, and a plurality of flank of tooth evenly bear the moment impact load jointly, make its impact that more can bear high torque force etc.
2, volume is little, and gravity is light: the structure of the high-accuracy planetary gear speed reducing mechanism of the utility model hop count on demand repeats to connect, and finishes the multistage combination separately, and volume is little, and is in light weight, and outward appearance is light and handy, and contrast makes the more valuable sense of design.
3, high efficiency, low back clearance: the even driving fit of distinctive multiple spot in the planetary pinion combination of the present utility model, the circular arc of external tooth torus comprises structure, the external tooth torus is combined with the planetary pinion gap is close, adaptation height between gear, except promoting high speed reducer efficient, design itself can reach the hi-Fix effect.
4, high rigidity: primary planet pinion, one-level sun gear, secondary planetary gear and secondary sun gear all can adopt the hard flank of tooth of 12CrNi3 alloyed steel carburizing and quenching, ring gear can adopt 42CrMo alloyed steel nitrogenize stiff dough, its advantage is: abrasion resistance and impact resistance and transmitting torque are big, gear engagement adopts multiple tooth engagement, the transmission efficiency height, transmission efficiency is usually more than or equal to 94%, and radially the bearing capacity height realizes that the double pass system biographies are moving.Speed ratio can for: 9,12,15,16,20,21,24,25,27,28,30,32,35,36,40,45,49,50,56,63,70,72 and 80, use design to reach best torque and rotating speed coupling, the backhaul gap is little, the transmitting accuracy height, Seal Design is good, all uses grease lubrication, do not leak, exempt from maintenance, simple installation, coaxial outputting standard flange location.
Of the present utility model being widely used, economical and practical, the life-span is long, and speed reducer is under controls such as stepper motor, direct current generator, actuating motor and oil hydraulic motor are used, brought into play the favorable rigidity effect, accurate in locating control has possessed low back clearance, high efficiency on the running platform, high input speed, high output torque, running is steady, characteristics such as low noise.Simultaneously, what environment no matter free of replacement lubricant oil be installed under all the life, can freedom from repairs.
Description of drawings
Fig. 1 is the structural representation of the high-accuracy planetary gear speed reducing mechanism of double modulus in the present embodiment.
Fig. 2 is the left TV structure schematic representation of Fig. 1.
Fig. 3 is the right TV structure schematic representation of Fig. 1.
Fig. 4 is the structural representation after the primary planet pinion in the present embodiment amplifies.
Fig. 5 is the structural representation after the secondary planetary gear in the present embodiment amplifies.
Fig. 6 is the structural representation after the secondary sun gear in the present embodiment amplifies.
Fig. 7 is the structural representation after the middle planetary frame in the present embodiment amplifies.
Fig. 8 is the structural representation after joiner in the present embodiment and one-level sun gear amplify.
Fig. 9 is the output shaft in the present embodiment and the structural representation of secondary planet frame.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Embodiment.
Referring to Fig. 1 to Fig. 9, the high-accuracy planetary gear speed reducing mechanism of double modulus in the present embodiment comprises output shaft 1, output shaft oil sealing 2, secondary gear ring housing 3, several secondary planetary gears 4, fore bearing 51, rear bearing 52, primary annulus housing 7, middle planetary frame 8, several primary planet pinions 9, bonnet oil sealing 11, one-level sun gear 12, joiner bearing 13, letter folder formula clamp ring 14, locking hexagon socket head cap screw 15, bonnet 16, secondary sun gear 17, bearing 18, joiner 19 and secondary planet frame 20, wherein, the quantity of secondary planetary gear 4 and primary planet pinion 9 is three.
Secondary gear ring housing 3 in the present embodiment comprises secondary gear tank shell 31 and secondary gear ring 32, and secondary gear ring 32 is fixed in the secondary gear tank shell 31, and secondary gear ring housing 3 is an integral structure.
One-level housing 71 in the present embodiment is fixed on the bonnet 16, and secondary gear tank shell 31 is fixed on the one-level housing 71, and bonnet oil sealing 11 is installed in the bonnet 16, and output shaft oil sealing 2 is installed in the secondary gear tank shell 31.
Several secondary planetary gears 4 in the present embodiment are installed on the secondary planet frame 20, and secondary planetary gear 4 all meshes with secondary gear ring 32.One end of secondary sun gear 17 is installed in the secondary sun gear chamber 201 of secondary planet frame 20 by bearing 18, makes that the rotation of secondary sun gear 17 is more steady.
Secondary planetary gear 4 in the present embodiment all is meshed with secondary sun gear 17, and middle planetary frame 8 is fixed on the other end of secondary sun gear 17, and this middle planetary frame 8 is fixed on the other end of secondary sun gear 17 usually by flat key.Several primary planet pinions 9 are installed on the middle planetary frame 8, and primary planet pinion 9 all is meshed with primary annulus 72.
Letter folder formula clamp ring 14 in the present embodiment is a circular ring, be provided with the adjusting mouth one in this letter folder formula clamp ring 14, this adjusting mouth is axial distribution, the both sides of regulating mouth are provided with bolt hole, the axis of this bolt hole is vertical with the adjusting mouth, and described locking hexagon socket head cap screw 15 is connected in the bolt hole; Also be provided with six road dashpots uniformly in the letter folder formula clamp ring 14.Letter folder formula clamp ring 14 in the present embodiment is fixed on of joiner 19 by locking hexagon socket head cap screw 15, one-level sun gear 12 is fixed on the other end of joiner 19, this one-level sun gear 12 is arranged in one-level housing 71, and primary planet pinion 9 all meshes with one-level sun gear 12.One-level sun gear 12 and joiner 19 in the present embodiment are generally integral structure.
Primary planet pinion 9 in the present embodiment comprises one-level roller 91, one-level planet wheel 93 and several one-level needle roller 92, and one-level planet wheel 93 is installed on the one-level roller 91 by several one-level needle rollers 92, and one-level roller 91 is fixed on the middle planetary frame 8.
Secondary planetary gear 4 in the present embodiment comprises secondary roller 41, secondary planet wheel 43 and several secondary needle roller 42, and secondary planet wheel 43 is installed on the secondary roller 41 by several secondary needle rollers 42, and secondary roller 41 is fixed on the secondary planet frame 20.
The high-accuracy planetary gear speed reducing mechanism of double modulus in the present embodiment is when operation, joiner 19 is connected with the input shaft in the external world, driving joiner 19 by input shaft rotates, driving one-level sun gear 12 by joiner 19 again rotates, because one-level sun gear 12 and primary planet pinion 9 engagements, and primary planet pinion 9 and primary annulus 72 engagements are under the situation that one-level sun gear 12 rotates, make primary planet pinion 9 rotate, rotate thereby drive middle planetary frame 8 along primary annulus 72.Because secondary sun gear 17 is fixed on the middle planetary frame 8, drives secondary sun gear 17 by middle planetary frame 8 and rotate.Secondary sun gear 17 and secondary planetary gear 4 engagements, secondary planetary gear 4 and 32 engagements of secondary gear ring under the situation that secondary sun gear 17 rotates, make secondary planetary gear 4 rotate along secondary gear ring 32, rotate thereby drive secondary planet frame 20.Because secondary planet frame 20 is fixing with output shaft 1, finally reaches the purpose that drives output shaft 1 rotation.
The high-accuracy planetary gear speed reducing mechanism of double modulus in the present embodiment have high torsion, shock-resistant, highi degree of accuracy, high rigidity, high capacity, high efficiency, at a high speed than, long-life, low inertia, low vibration, low noise, hang down temperature rise, little, the easy for installation and pinpoint characteristics of structure.
1. in order to reduce the input speed height, it is bigger to reduce noise, sliding ratio is unbalanced, first order planet wheel and sun gear can adopt 1.25 moduluses, it is big in the back lash to have overcome in the prior art the general face of high-accuracy planetary gear speed reducing mechanism, and the input speed that bears is not higher, can not satisfy high-accuracy, high input speed, the defective of the usage requirement of high especially big output torque equipment.
2. in order to improve the intensity of straight toothed spur gear, second level planet wheel and sun gear can adopt short tooth in design, double modulus (two diametral pitch) design of gears.
(1) purpose of employing bimodulus numeral system tooth is the interference for fear of gear.
(2), adopt double modulus (two diametral pitch) standard in design in order to improve the intensity of straight toothed spur gear.
(3) interlock of gear is smooth more suitable sliding, and noise decreases, highi degree of accuracy, and high pulling torque, is hanging down the superior function that fully represents the highi degree of accuracy input when pulsation is rotated especially at the long lifetime.
So-called double modulus (two diametral pitch) standard, the parameter of same gear adopts two moduluses that differ in size exactly, its standard pitch circle calculates with bigger modulus, and the gear height, then calculate by normal tooth depth with less modulus, process the concrete grammar of this kind gear with the standard involute hob, the gear common normal L1 that to be the standard hob of selecting big modulus for use cut out like this by close-toothed whole depth feed (being equivalent to the normal shift to large module gear) than desired common normal line L greatly.
Two kinds of different moduluses are arranged on the tooth, transverse tooth thickness is to calculate with a kind of modulus, tooth depth but is to calculate with another kind of modulus, be so-called double modulus gear like this, the purpose of using this gear is similar to short tooth, be for the tooth that makes gear firmer, just in order to strengthen the intensity of tooth, two different moduluses on this type gear, one is that big modulus is represented with M, another is that little modulus is represented with m.These two kinds of moduluses can show on drawing, and the form of often being write as mark is as 1.5/1.25, and this just represents this gear to be processed, and its big modulus equals 1.5 millimeters, and little modulus equals 1.25 millimeters.
High-accuracy planetary gear speed reducing mechanism in the utility model adopts the form of double modulus usually, thus in title of the present utility model titled with " double modulus " two words.
3. outward appearance and design one gear box casing.Be installed on the overall aesthetic that all can promote product on any product.Guaranteed the concentricity of product, strengthened the precision of product, sealability has increased the bulk strength of gear-box.
4. output shaft uses dual-gripper.Planet wheel has played running steadily in the running, does not influence output torque, reduces noise, guarantees the performance of speed reducer, can work steady in a long-term.
5. the needle bearing of full pin is adopted in the planet wheel dual-gripper.Increased area of contact to improve structural rigidity and output torque.
6. the big span location and installation of duplex bearing is adopted in the output shaft configuration.Guarantee big torsional rigid and output loading capability.
7. sun gear and joiner are integral type.Guaranteed processing precision of products, intensity and concentricity, accurately with joining drive motor be assembled together, can long-term stability to work reliably.
8. input shaft adopts the clamp ring locking of collet-type.Joiner has hollow to clamp the lock shaft circle, the groove that its sun gear and input shaft connection place have six roads all to distribute, and on cylindrical, have one to clamp the lock shaft circle, impel the stress deformation degree even in the clamping process, the assurance clamping force is even, more science is, institute's configuration lock collar makes motor shaft can be placed on any lock shaft position of joiner safely, does not influence the input output moment of torsion, make the input end of motor output shaft and speed reducer better ordinatedly, and improved precision and Security that motor output shaft clamps simultaneously widely in assembling, simplified installation, also reduced noise, guarantee the speed reducer runnability, can work steady in a long-term.
9. high-accuracy planetary reducer adopts internal cavity and the design of outside complete closed.Energy dust protection and rainwater, the IP64 security level makes the internal cavity and the outside complete closed of planetary speed reducer, planetary speed reducer is when running up, the temperature and pressure of the speed reducer internal cavity that is produced changes directly influences output torque, for input end and the output shaft that guarantees IP64 security level planetary speed reducer all adopts stuffing box bearing and oil sealing,, stuffing box bearing and oil sealing change but also can influencing the temperature and pressure of speed reducer internal cavity.
(1). the restriction of temperature and pressure.
The highest rotational efficienty of high-accuracy planetary speed reducer is 96%, has 4% the intake to become heat and loss.This loss is mainly from the friction of oil sealing and bearing, and the temperature of speed reducer internal cavity is raise, and outsidely also can increase the temperature of speed reducer internal cavity than higher ambient temperature, and the temperature of speed reducer internal cavity has directly limited output torque and output speed.
(2). reduce the pressure of speed reducer inside temperature and internal cavity.
The first reduces the lubricating grease of speed reducer internal cavity, but this has influenced the long-term high-efficient operation and the life-span of speed reducer, lubricating grease is constantly mobile to all around after running a period of time at speed reducer, make the sun gear and the lubricating grease on the planet wheel of speed reducer reduce, its result causes speed reducer bearing capacity when running up to descend, and is exactly that specified output torque descends.Second is exactly that to make the pressurized gas of speed reducer inside be discharged to speed reducer external.But guarantee the peace power property and the feature of environmental protection of speed reducer, it is external that requirement can not have oil, oily trowel used for plastering and mist of oil etc. to be discharged to, to satisfy requirement of shelter such as the waterproof and dustproof of IP64 and protection against the tide simultaneously, people have expected adding the unidirectional air valve of sending on cavity, but this exerts oneself greatly for a short time to wanting cube, and rotational efficienty high-accuracy planetary speed reducer high and high reliability is inappropriate.
In addition, need to prove, the specific embodiment described in this specification, its zero, the shape of parts, institute's title of being named etc. can be different, the above content described in this specification only is to the explanation of the utility model structure example.Allly conceive equivalence variation or the simple change that described structure, feature and principle are done, be included in the protection domain of the utility model patent according to the utility model patent.
Claims (10)
1. high-accuracy planetary gear speed reducing mechanism of double modulus, it is characterized in that: comprise output shaft, the output shaft oil sealing, secondary gear ring housing, several secondary planetary gears, fore bearing, rear bearing, the primary annulus housing, the middle planetary frame, several primary planet pinions, the bonnet oil sealing, the one-level sun gear, the joiner bearing, the clamp ring of letter folder formula, the locking hexagon socket head cap screw, bonnet, the secondary sun gear, bearing, joiner and secondary planet frame, described secondary gear ring housing comprises secondary gear tank shell and secondary gear ring, described secondary gear ring is fixed in the secondary gear tank shell, described primary annulus housing comprises one-level housing and primary annulus, and described primary annulus is fixed in the one-level housing; Described one-level housing is fixed on the bonnet, and described secondary gear tank shell is fixed on the one-level housing, and described bonnet oil sealing is installed in the bonnet, and described output shaft oil sealing is installed in the secondary gear tank shell; Described output shaft is installed in the secondary gear tank shell by fore bearing, this output shaft cooperates with the output shaft oil sealing, described secondary planet frame is fixed on an end of output shaft, this secondary planet frame is installed in the secondary gear tank shell by rear bearing, is provided with secondary sun gear chamber in the described secondary planet frame; Several secondary planetary gears are installed on the secondary planet frame, and secondary planetary gear all meshes with the secondary gear ring; One end of described secondary sun gear by Bearing Installation in the secondary sun gear chamber of secondary planet frame, described secondary planetary gear all meshes with the secondary sun gear, described middle planetary frame is fixed on the other end of secondary sun gear, several primary planet pinions are installed on the middle planetary frame, and primary planet pinion all meshes with primary annulus; Described joiner is installed in the bonnet by the joiner bearing, and this joiner cooperates with the bonnet oil sealing, and described joiner, bonnet oil sealing, bonnet, one-level housing, secondary gear tank shell, output shaft oil sealing and output shaft form a complete airtight cavity; The clamp ring of described simple folder formula is fixed on of joiner by the locking hexagon socket head cap screw, and described one-level sun gear is fixed on the other end of joiner, and this one-level sun gear is arranged in the one-level housing, and described primary planet pinion all meshes with the one-level sun gear.
2. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1 is characterized in that: described secondary gear ring housing is an integral structure.
3. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1 is characterized in that: described primary annulus housing is an integral structure.
4. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1, it is characterized in that: described primary planet pinion comprises one-level roller, one-level planet wheel and several one-level needle roller, described one-level planet wheel is installed on the one-level roller by several one-level needle rollers, and described one-level roller is fixed on the middle planetary frame.
5. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1, it is characterized in that: described secondary planetary gear comprises secondary roller, secondary planet wheel and several secondary needle roller, described secondary planet wheel is installed on the secondary roller by several secondary needle rollers, and described secondary roller is fixed on the secondary planet frame.
6. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1 is characterized in that: described middle planetary frame is fixed on the other end of secondary sun gear by flat key.
7. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1 is characterized in that: described one-level sun gear and joiner are integral structure.
8. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1, it is characterized in that: the clamp ring of described simple folder formula is a circular ring, be provided with the adjusting mouth one in this letter folder formula clamp ring, this adjusting mouth is axial distribution, the described both sides of regulating mouth are provided with bolt hole, the axis of this bolt hole is vertical with the adjusting mouth, and described locking hexagon socket head cap screw is connected in the bolt hole; Also be provided with six road dashpots in the clamp ring of described simple folder formula uniformly.
9. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1 is characterized in that: the quantity of described secondary planetary gear and primary planet pinion is three.
10. the high-accuracy planetary gear speed reducing mechanism of double modulus as claimed in claim 1 is characterized in that: described output shaft is a dual-gripper output shaft structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098766 CN203098759U (en) | 2013-03-05 | 2013-03-05 | Double-module high-precision planetary reducing mechanism |
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| CN 201320098766 CN203098759U (en) | 2013-03-05 | 2013-03-05 | Double-module high-precision planetary reducing mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089932A (en) * | 2013-03-05 | 2013-05-08 | 杭州博悦传动机械有限公司 | Double moduli high-accurate planet reducing mechanism |
| CN105240459A (en) * | 2015-11-19 | 2016-01-13 | 哈尔滨东安发动机（集团）有限公司 | Multi-stage planetary reducer |
| WO2022127240A1 (en) * | 2020-12-18 | 2022-06-23 | 浙江三凯机电有限公司 | Precision planetary gear reducer |
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2013
- 2013-03-05 CN CN 201320098766 patent/CN203098759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089932A (en) * | 2013-03-05 | 2013-05-08 | 杭州博悦传动机械有限公司 | Double moduli high-accurate planet reducing mechanism |
| CN105240459A (en) * | 2015-11-19 | 2016-01-13 | 哈尔滨东安发动机（集团）有限公司 | Multi-stage planetary reducer |
| WO2022127240A1 (en) * | 2020-12-18 | 2022-06-23 | 浙江三凯机电有限公司 | Precision planetary gear reducer |
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