CN104819253A - Multi-crankshaft cycloid speed reducer - Google Patents
Multi-crankshaft cycloid speed reducer Download PDFInfo
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- CN104819253A CN104819253A CN201510087582.6A CN201510087582A CN104819253A CN 104819253 A CN104819253 A CN 104819253A CN 201510087582 A CN201510087582 A CN 201510087582A CN 104819253 A CN104819253 A CN 104819253A
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 88
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 10
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- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- 230000003068 static effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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Classifications
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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Abstract
The present invention provides a multi-crankshaft cycloid speed reducer. The speed reducer comprises a housing; an output mechanism mounted in the housing by using a bearing I; at least two crankshafts, wherein the crankshafts are mounted in the output mechanism by using a bearing II; an input shaft running through the output mechanism, wherein the input shaft has one end connected to input equipment and the other end in transmission connection with the crankshafts; and a cycloid pan positioned in the housing. The cycloid pan sleeves eccentric parts of the crankshafts; balls and a movement space for the balls are arranged between the cycloid pan and the interior of the housing; the movement space is holes and track grooves disposed between an end surface in the housing and a side surface of the cycloid pan. The speed reducer of the present invention is compact in structure, large in load bearing capacity, stable in rotation and high in reliability; the aims of simplifying the internal structure of the speed reducer and reducing the weight and the size of the speed reducer are achieved while transmission efficiency and a speed reduction ratio of the speed reducer are improved, thereby reducing production costs of the speed reducer. The multi-crankshaft cycloid speed reducer is especially suitable for use as a power transmission mechanism on large-sized mechanical equipment.
Description
Technical field
The present invention relates to the technical field that mechanical transmission is slowed down, more particularly, relate to a kind of speed reducer.
Background technique
Speed reducer is a kind of power-transmitting unit, the rotational speed decelerates of power can be obtained larger torque to desired rotating speed.Current in the mechanism of transferring power and motion, the application area of speed reducer is quite extensive, and from automobile, the boats and ships of the traffic tool, heavy-duty machine for building, to process equipment and automated production equipment etc. that mechanical industry is used.
Speed reducer is a kind of relatively accurate machinery, and it is of a great variety, moves at present in the speed reducer mainly RV speed reducer of robot.RV speed reducer to improve the kinematic accuracy of robot and dynamic characteristic highly beneficial, but also have that velocity ratio is large, bearing capacity large and kinematic accuracy advantages of higher, therefore this transmission device is not only employed for robot, is also widely adopted at Machine Tool Industry.
But RV speed reducer belongs to cycloidal planetary gear speed reducer, and cycloidal planetary gear speed reducer adopts balancing point and cycloidal fashion transfer motion power, and its gearing down parts adopt circle-arc tooth and needle roller Cylindrical Surfaces Contact.When cycloidal planetary gear speed reducer works, the transmission of power surface of contact movement process due to speed reducer is with the motion of high load form, therefore easily causes the wearing and tearing of parts (external tooth of such as balancing point and cycloid disc etc.).And its complex structure, requirement on machining accuracy is high, will leave certain process gap in design and installation process, causes rotating not steadily during work, and noise is large, and rotational efficienty is low.Rod member size and weight meanwhile, for robot construction, needs to carry out many rod member motions, so will affect its inertia and load carrying capacity.Because RV speed reducer structure complexity causes its volume large and have constant weight, it is applied in robot cannot reduce inertia.
Summary of the invention
The object of the invention is to overcome shortcoming of the prior art with not enough, there is provided that a kind of compact structure, noise are low, bearing load ability is large, the much higher bent axle cycloid speed reducer of stability of rotation reliability, to realize can simplifying speed reducer internal structure while raising reduction box transmission efficiency and reduction speed ratio, reducing speed reducer volume and weight, and then reduce the cost of production of speed reducer, be particularly suitable on heavy mechanical equipment as power-transmitting unit.
In order to achieve the above object, the present invention is achieved by following technical proposals: a kind of many bent axles cycloid speed reducer, is connected with input device; It is characterized in that: comprising:
Shell;
The output mechanism of enclosure is arranged on by bearing one;
Article at least two, bent axle, described bent axle is arranged on output mechanism inside by bearing two;
Be located in the input shaft on output mechanism, described input shaft one end is connected with input device, and the other end is connected with transmission of crankshaft;
And being positioned at the cycloid disc of enclosure, described cycloid disc is set in the eccentric part of bent axle;
Between the motor area being provided with ball and ball between described cycloid disc and enclosure, be the hole that arranges between end surface and cycloid disc one side in the enclosure and track groove between described motor area.
In such scheme, the bent axle rotation of more than two when the input shaft that one end is connected with input device rotates, can be driven, thus the cycloid disc that driving casing is located in the crankshaft eccentric portion of more than two swings.In cycloid disc swing process, because the bent axles of more than two are not be arranged on the center of circle of cycloid disc, it take offset as the circular movement of radius that bent axle can make the center of cycloid disc do; Now ball rolls or slides thus limits the rotation of cycloid disc and transmit lateral pressure to cycloid disc between the motor area of ball, realizes cycloid disc reciprocally swinging in the horizontal direction.Therefore, can be used as anti-rotation mechanism between the motor area of bent axle of the present invention, ball and ball.This anti-rotation mechanism is without the need to extra setting parts (as retainer etc.), thus the structure of the speed reducer simplified and the weight alleviating speed reducer, and improve the structural compactness of speed reducer.
Ball rolls or slides and then can, by the active force transmission after deceleration to cycloid disc, make cycloid disc drive the bent axle of more than two to revolve round the sun around input shaft between motor area, thus drives output mechanism to rotate, and realizes the effect of slowing down.In speed reducer moderating process, it is the combination adopting hole and track groove between the motor area of ball, relative between the motor area that existing RV speed reducer adopts hypocycloid raceway and epicycloid raceway two track groove to be formed, the phase difference that the needle roller that then there is not RV speed reducer produces when hypocycloid raceway and epicycloid rolling path rolling, needle roller can be effectively avoided to cancel out each other when two track groove are rolled the phenomenon of the rotation angle exported, therefore, speed reducer of the present invention adopts the combination of hole and track groove effectively can improve the reduction speed ratio of speed reducer, transmission efficiency and stability of rotation reliability.And, every bar bent axle of speed reducer of the present invention only adopts one-level eccentric part, then only need adopt one deck transmission device (namely a cycloid disc, between ball and motor area) that the effect of deceleration can be reached, thus avoiding existing RV speed reducer to adopt two-layer transmission device (i.e. two cycloid discs and needle roller) to cause, speed reducer structure is complicated, volume large and while the problem of Heavy Weight, also effectively can improve the reduction speed ratio of speed reducer, transmission efficiency and stability of rotation reliability, and then reduce the cost of production of speed reducer.
Namely can be used as an anti-rotation mechanism part for cycloid disc between the motor area of ball of the present invention and ball, also can be used as a part for the gearing down force mechanisms of this speed reducer.
More particularly, described cycloid disc is disc cycloid disc, and it is provided with through hole one for installing input shaft, for installing the through hole two of bent axle and the through hole three for installing output mechanism; Described cycloid disc is socketed on the eccentric part of bent axle in through hole two by bearing three.
Cycloid disc of the present invention can arrange corresponding through hole two according to the quantity of bent axle, because the through hole two for installing bent axle is not the center of circle being arranged on cycloid disc, and under the active force of ball between motor area, therefore the rotation of cycloid disc can be limited in cycloid disc swing process, and lateral pressure is transmitted to cycloid disc, realize cycloid disc reciprocally swinging in the horizontal direction.
Described input shaft one end is connected with input device, and the other end is connected with transmission of crankshaft and refers to: input shaft one end is connected with input device, and the other end is provided with input gear, and one end that bent axle is relative with input shaft is provided with driving gear; Engage the rotation of band dynamic crankshaft by input gear and driving gear when input shaft rotates, realize being in transmission connection of input shaft and bent axle.
Described shell comprises shell and lower casing, and two described output mechanisms are arranged on upper enclosure and lower casing inside respectively by bearing one.Output mechanism of the present invention is set to two, and can be respectively used to as power-transmitting unit on two heavy mechanical equipments, this speed reducer two sides can connect output unit, directionless differentiation.In the present invention, between cycloid disc and lower casing, be provided with clearance position, for providing the swing space of cycloid disc.
Refer between the motor area being provided with ball and ball between described cycloid disc and enclosure: between the motor area being provided with ball one and ball one between the positive side of described cycloid disc and upper enclosure one, and between the motor area being provided with ball two and ball two between the face of tossing about of cycloid disc and lower casing inside two.
Between described motor area, one is the track groove one arranged in the positive side of the hole one that upper shell internal end surface is arranged and cycloid disc, or one be the hole one of the positive side setting of the track groove one and cycloid disc arranged in upper shell internal end surface between motor area; Between described motor area two be lower casing internal end surface arrange hole two and cycloid disc face of tossing about arrange track groove two, or between motor area two be lower casing internal end surface arrange track groove two and cycloid disc face of tossing about setting hole two.Between motor area of the present invention, the setting position of one mesopore one and track groove one can exchange, and equally, between motor area, the setting position of two mesopores two and track groove two also can exchange, and can improve flexibility and the diversity of speed reducer internal structure like this.
Described track groove one is identical with track groove two shape, and be cross section in " U " font groove, the groove footpath R of " U " font groove and the external diameter of ball one and ball two match; Track groove one forms the cycloid with wave number and closes guide groove between the positive side of cycloid disc and upper shell internal end surface; Track groove two forms the cycloid with wave number and closes guide groove between the face of tossing about and lower casing internal end surface of cycloid disc; The wave number of described track groove one is equal with the wave number of track groove two.When track groove one and track groove two are all arranged on cycloid disc, the track groove one that positive side and the face of tossing about of this cycloid disc are arranged is identical track groove with track groove two, therefore, when speed reducer is assembled without the need to distinguishing the obverse and reverse of cycloid disc, thus reduce the difficulty of processing of cycloid disc, make easy to process, and agility and the convenience of speed reducer assembling can be improved.
The wave number of described track groove one and the quantity in hole one have difference; The wave number of described track groove two and the quantity in hole two have difference.The wave number of track groove one of the present invention and track groove two can be more than the quantity in hole one and hole two, or the quantity in hole one and hole two can be more than the wave number of track groove one and track groove two, such design can increase the reduction speed ratio of speed reducer, is also conducive to simplification and the processing of machinery.If track groove one is identical with the quantity in hole two with hole one with the wave number of track groove two, then track groove one is corresponding with the location matches in hole one and hole two with the position of the ripple of track groove two, therefore, ball one and ball two can not to realize between motor area between one and motor area two to carry out rolling or sliding, the positive side of cycloid disc and the engagement of upper shell internal end surface cannot be realized, the face of tossing about of cycloid disc and the engagement of lower casing internal end surface, also the active force of deceleration cannot be reacted on cycloid disc, finally cannot realize cycloid disc promotion bent axle to revolve round the sun around input shaft, thus speed reducer can not play the effect of deceleration.
The semicircle orifice that described Kong Yiwei aperture and ball one external diameter match, the semicircle orifice that described Kong Erwei aperture and ball two external diameter match; The quantity in ball one, Kong Yi, ball two and hole two is equal.When the positive side of cycloid disc arranges porose a period of time, hole one is evenly arranged on the positive side disc face of cycloid disc, and the circle center line connecting in each hole one forms the concentric circle of disk; When the face of tossing about of cycloid disc arranges porose two, hole two is evenly arranged in face of the tossing about disc face of cycloid disc, and the circle center line connecting in each hole two forms the concentric circle of disk.
Described bearing two is roller bearing; Described shell is provided with oil sealing.Bearing two of the present invention adopt roller bearing that two can be made to install between output mechanism and bent axle more closely and firm, prevent the phenomenon that in speed reducer using process, output mechanism comes off.
Many bent axles cycloid speed reducer of the present invention is simple and compact for structure, and gearless driving can reach desirable slowing effect.The working principle that this speed reducer slows down is such: when input device high speed rotating, the bent axle rotation of more than two can be driven when the input shaft that one end is connected with input device rotates, thus the cycloid disc that driving casing is located in the crankshaft eccentric portion of more than two swings, it take offset as the circular movement of radius that bent axle can make the center of cycloid disc do, now, be placed on the ball one in hole one roll in the track groove one of correspondence or slide, be placed on the ball two in hole two roll in the track groove two of correspondence or slide, thus limit the rotation of cycloid disc and lateral pressure is transmitted to cycloid disc, realize cycloid disc reciprocally swinging in the horizontal direction.Simultaneously, in cycloid disc substantially horizontal reciprocally swinging process, active force makes the ball one be placed in hole one roll in track groove one or slide, the ball two be placed in hole two rolls or slides in track two groove, because upper shell and lower casing maintain static, therefore, the active force of ball one and ball two pairs of track groove one and track groove two reacts on cycloid disc, cycloid disc is made to drive the bent axle of more than two to revolve round the sun around input shaft, thus drive output mechanism to rotate, realize input shaft and often rotate 360 °, output mechanism offsets a certain amount of rotation angle under the motion stress effect of ball one and ball two, and then the rotation of input device deceleration is passed to the output mechanism of speed reducer, to reach the effect of deceleration.
Compared with prior art, tool of the present invention has the following advantages and beneficial effect:
1, the present invention's many bent axles cycloid speed reducer compact structure, bearing load ability is large, stability of rotation reliability is high, realize can simplifying speed reducer internal structure while raising reduction box transmission efficiency and reduction speed ratio, reducing speed reducer volume and weight, and then reduce the cost of production of speed reducer, be particularly suitable on heavy mechanical equipment as power-transmitting unit.
2, the anti-rotation mechanism that ball of the present invention rolls or slides between motor area and the setting of bent axle can be formed, this anti-rotation mechanism is without the need to extra setting parts (as retainer etc.), thus the structure of the speed reducer simplified and the weight alleviating speed reducer, and improve the structural compactness of speed reducer.
3, speed reducer of the present invention adopts the combination of hole and track groove effectively can improve the reduction speed ratio of speed reducer, transmission efficiency and stability of rotation reliability.
Accompanying drawing explanation
Fig. 1 is the overlooking surface structural representation of the present invention's many bent axles cycloid speed reducer;
Fig. 2 is the internal structure schematic diagram of many bent axles cycloid speed reducer in A-A direction in Fig. 1;
Fig. 3 is the schematic diagram that the upper shell internal end surface of the present invention's many bent axles cycloid speed reducer arranges porose;
Fig. 4 is the schematic diagram that the lower casing internal end surface of the present invention's many bent axles cycloid speed reducer arranges porose two;
Fig. 5 be the present invention's many bent axles cycloid speed reducer the positive side of cycloid disc on be provided with the schematic diagram of track groove one;
Fig. 6 is that the cycloid disc of the present invention's many bent axles cycloid speed reducer is tossed about and face is provided with the schematic diagram of track groove two;
Wherein, 1 be input gear, 2 be driving gear, 3 be bent axle, 4 for bearing two, 5.1 for output mechanism one, 5.2 for output mechanism two, 6 for bearing one, 7.1 be upper shell, 7.2 be lower casing, 8 be cycloid disc, 9.1 for ball one, 9.2 for ball two, 10.1 for track groove one, 10.2 for track groove two, 11 be oil sealing, 12 for bearing three, 13 be input shaft, 14.1 for hole one, 14.2 for hole two, 15 for through hole one, 16 for through hole two, 17 for through hole three, 18 is clearance position.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment one
The present embodiment one is one being the track groove one arranged in the positive side of the hole one that upper shell internal end surface is arranged and cycloid disc between motor area, between motor area, two is the track groove two arranged in the face of tossing about of the hole two that lower casing internal end surface is arranged and cycloid disc, and this speed reducer be double-crankshaft cycloid speed reducer is that example is to being described below.
As shown in Figures 1 to 6, many bent axles cycloid speed reducer of the present invention is connected with input device; It comprises:
Upper shell 7.1, lower casing 7.2;
Be arranged on the output mechanism 1 of upper shell 7.1 inside by bearing 1, be arranged on the output mechanism 2 5.2 of lower casing 7.2 inside by bearing 1;
Article two, bent axle 3; This bent axle 3 is arranged on output mechanism 1 by bearing 24 and output mechanism 2 5.2 is inner;
Be located in the input shaft 13 on output mechanism 1 and output mechanism 2 5.2, this input shaft 13 one end is connected with input device, and the other end and bent axle 3 are in transmission connection;
And being positioned at the cycloid disc 8 of shell 7.1 and lower casing 7.2 inside, this cycloid disc 8 is set in the eccentric part of bent axle 3.
Specifically, input shaft 13 one end of the present invention is connected with input device, the other end is in transmission connection with bent axle 3 and refers to: input shaft 13 one end is connected with input device, and the other end is provided with input gear 1, and one end that bent axle 3 is relative with input shaft 13 is provided with driving gear 2; Engage band dynamic crankshaft 3 rotation by input gear 1 and driving gear 2 when input shaft 13 rotates, realize being in transmission connection of input shaft 13 and bent axle 3.
Cycloid disc 8 of the present invention is disc cycloid disc, and it is provided with through hole 1 for installing input shaft 13, for installing the through hole 2 16 of bent axle 3 and the through hole 3 17 for installing output mechanism 1 and output mechanism 2 5.2.Wherein, cycloid disc 8 is socketed on the eccentric part of bent axle 3 in through hole 2 16 by bearing 3 12.Clearance position 18 is provided with, for providing the swing space of cycloid disc 8 between cycloid disc 8 and lower casing 7.2.
Wherein, between the motor area being provided with ball 1 and ball 1 between the positive side of cycloid disc 8 and upper shell 7.1 inside one, and between the motor area being provided with ball 2 9.2 and ball 2 9.2 between the face of tossing about of cycloid disc 8 and lower casing 7.2 inside two.Between motor area, one is the track groove 1 arranged in the upper hole 1 of shell 7.1 internal end surface setting and the positive side of cycloid disc 8, and between motor area, two is the track groove 2 10.2 arranged in the hole 2 14.2 of lower casing 7.2 internal end surface setting and the face of tossing about of cycloid disc 8.Track groove 1 is identical with track groove 2 10.2 shape, and be cross section in " U " font groove, the groove footpath R of " U " font groove and the external diameter of ball 1 and ball 2 9.2 match.And track groove 1 forms the cycloid with wave number and closes guide groove between the positive side of cycloid disc 8 and upper shell 7.1 internal end surface; Track groove 2 10.2 forms the cycloid with wave number and closes guide groove between the face of tossing about of cycloid disc 8 and lower casing 7.2 internal end surface, and the wave number of track groove 1 is equal with the wave number of track groove 2 10.2.The track groove 1 arranged due to positive side and the face of tossing about of this cycloid disc 8 is identical track groove with track groove 2 10.2, therefore, when speed reducer is assembled without the need to distinguishing the obverse and reverse of cycloid disc 8, thus reduce the difficulty of processing of cycloid disc 8, make easy to process, and agility and the convenience of speed reducer assembling can be improved.
The wave number of track groove 1 and the quantity in hole 1 have difference; The wave number of track groove 2 10.2 and the quantity in hole 2 14.2 also have difference.The wave number of track groove 1 of the present invention and track groove 2 10.2 can be more than the quantity in hole 1 and hole 2 14.2, or the quantity in hole 1 and hole 2 17.2 can be more than the wave number of track groove 1 and track groove 2 10.2, such design can increase the reduction speed ratio of speed reducer, is also conducive to simplification and the processing of machinery.Hole 1 is the semicircle orifice that aperture and ball 1 external diameter match, and hole 2 14.2 is the semicircle orifice that aperture and ball 2 9.2 external diameter match; The quantity in ball 1, hole 1, ball 2 9.2 and hole 2 14.2 is equal.
In order to output mechanism 1 can be made and install more closely with firm between output mechanism 2 5.2 and bent axle 3, this bearing 24 adopts roller bearing, can prevent the phenomenon that in speed reducer using process, output mechanism 1 and output mechanism 2 5.2 come off.The present invention is also provided with oil sealing 11 on upper shell 7.1.
Many bent axles cycloid speed reducer of the present invention is simple and compact for structure, and gearless driving can reach desirable slowing effect.The working principle that this speed reducer slows down is such: when input device high speed rotating, the input shaft 13 that one end is connected with input device can drive the rotation of two bent axles 3 when rotating, thus the cycloid disc 8 that driving casing is located on two bent axle 3 eccentric parts swings, it take offset as the circular movement of radius that bent axle 3 can make the center of cycloid disc 8 do, now, be placed on the ball 1 in hole 1 roll in the track groove 1 of correspondence or slide, be placed on the ball 2 9.2 in hole 2 14.2 roll in the track groove 2 10.2 of correspondence or slide, thus limit the rotation of cycloid disc 8 and lateral pressure is transmitted to cycloid disc 8, realize cycloid disc 8 reciprocally swinging in the horizontal direction.Simultaneously, in cycloid disc 8 substantially horizontal reciprocally swinging process, active force makes the ball 1 be placed in hole 1 roll in track groove 1 or slide, the ball 2 9.2 be placed in hole 2 14.2 rolls or slides in track 2 10.2 groove, because upper shell 7.1 and lower casing 7.2 maintain static, therefore, the active force of ball 1 and ball 2 9.2 pairs of track groove 1 and track groove 2 10.2 reacts on cycloid disc 8, cycloid disc 8 is made to drive two bent axles 3 to revolve round the sun around input shaft 13, thus drive output mechanism 1 and output mechanism 2 5.2 to rotate, realize input shaft 13 and often rotate 360 °, output mechanism 1 and output mechanism 2 5.2 offset a certain amount of rotation angle under the motion stress effect of ball 1 and ball 2 9.2, and then the rotation of input device deceleration is passed to output mechanism 1 and the output mechanism 2 5.2 of speed reducer, to reach the effect of deceleration.
Embodiment two
The present embodiment and embodiment one difference are only: between motor area, one is the hole one that the positive side of the track groove one and cycloid disc arranged in upper shell internal end surface is arranged, between motor area, two is the track groove two arranged in the hole two of lower casing internal end surface setting and the face of tossing about of cycloid disc, and other structure is consistent with embodiment one.
Embodiment three
The present embodiment and embodiment one difference are only: between motor area, one is the track groove one arranged in the positive side of the hole one that upper shell internal end surface is arranged and cycloid disc, between motor area, two is the hole two arranged in the track groove two of lower casing internal end surface setting and the face of tossing about of cycloid disc, and other structure is consistent with embodiment one.
Embodiment four
The present embodiment and embodiment one difference are only: between motor area, one is the hole one that the positive side of the track groove one and cycloid disc arranged in upper shell internal end surface is arranged, between motor area, two is the hole two arranged in the track groove two of lower casing internal end surface setting and the face of tossing about of cycloid disc, and other structure is consistent with embodiment one.
Embodiment five
The present embodiment and embodiment one difference are only: speed reducer can arrange the bent axle of three bent axles or more than three, and cycloid disc is socketed on the eccentric part of every bar bent axle in through hole two by bearing three, and other structure is consistent with embodiment one.
Above-described embodiment is the present invention's preferably mode of execution; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. the cycloid speed reducer of bent axle more than, is connected with input device; It is characterized in that: comprising:
Shell;
The output mechanism of enclosure is arranged on by bearing one;
Article at least two, bent axle, described bent axle is arranged on output mechanism inside by bearing two;
Be located in the input shaft on output mechanism, described input shaft one end is connected with input device, and the other end is connected with transmission of crankshaft;
And being positioned at the cycloid disc of enclosure, described cycloid disc is set in the eccentric part of bent axle;
Between the motor area being provided with ball and ball between described cycloid disc and enclosure, be the hole that arranges between end surface and cycloid disc one side in the enclosure and track groove between described motor area.
2. many bent axles cycloid speed reducer according to claim 1, is characterized in that: described cycloid disc is disc cycloid disc, and it is provided with through hole one for installing input shaft, for installing the through hole two of bent axle and the through hole three for installing output mechanism; Described cycloid disc is socketed on the eccentric part of bent axle in through hole two by bearing three.
3. many bent axles cycloid speed reducer according to claim 1, it is characterized in that: described input shaft one end is connected with input device, the other end is connected with transmission of crankshaft and refers to: input shaft one end is connected with input device, the other end is provided with input gear, and one end that bent axle is relative with input shaft is provided with driving gear; Engage the rotation of band dynamic crankshaft by input gear and driving gear when input shaft rotates, realize being in transmission connection of input shaft and bent axle.
4. many bent axles cycloid speed reducer according to claim 1, is characterized in that: described shell comprises shell and lower casing, and two described output mechanisms are arranged on upper enclosure and lower casing inside respectively by bearing one.
5. many bent axles cycloid speed reducer according to claim 4, it is characterized in that: refer between the motor area being provided with ball and ball between described cycloid disc and enclosure: between the motor area being provided with ball one and ball one between the positive side of described cycloid disc and upper enclosure one, and between the motor area being provided with ball two and ball two between the face of tossing about of cycloid disc and lower casing inside two.
6. many bent axles cycloid speed reducer according to claim 5, it is characterized in that: between described motor area, one is the track groove one arranged in the positive side of the hole one that upper shell internal end surface is arranged and cycloid disc, or one be the hole one of the positive side setting of the track groove one and cycloid disc arranged in upper shell internal end surface between motor area; Between described motor area two be lower casing internal end surface arrange hole two and cycloid disc face of tossing about arrange track groove two, or between motor area two be lower casing internal end surface arrange track groove two and cycloid disc face of tossing about setting hole two.
7. many bent axles cycloid speed reducer according to claim 6, is characterized in that: described track groove one is identical with track groove two shape, and be cross section in " U " font groove, the groove footpath R of " U " font groove and the external diameter of ball one and ball two match; Track groove one forms the cycloid with wave number and closes guide groove between the positive side of cycloid disc and upper shell internal end surface; Track groove two forms the cycloid with wave number and closes guide groove between the face of tossing about and lower casing internal end surface of cycloid disc; The wave number of described track groove one is equal with the wave number of track groove two.
8. many bent axles cycloid speed reducer according to claim 7, is characterized in that: the wave number of described track groove one and the quantity in hole one have difference; The wave number of described track groove two and the quantity in hole two have difference.
9. many bent axles cycloid speed reducer according to claim 6, is characterized in that: the semicircle orifice that described Kong Yiwei aperture and ball one external diameter match, the semicircle orifice that described Kong Erwei aperture and ball two external diameter match; The quantity in ball one, Kong Yi, ball two and hole two is equal.
10. many bent axles cycloid speed reducer according to claim 1, is characterized in that: described bearing two is roller bearing; Described shell is provided with oil sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087582.6A CN104819253B (en) | 2015-02-25 | 2015-02-25 | Multi-crankshaft cycloid speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087582.6A CN104819253B (en) | 2015-02-25 | 2015-02-25 | Multi-crankshaft cycloid speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN104819253A true CN104819253A (en) | 2015-08-05 |
| CN104819253B CN104819253B (en) | 2017-05-17 |
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| CN201510087582.6A Expired - Fee Related CN104819253B (en) | 2015-02-25 | 2015-02-25 | Multi-crankshaft cycloid speed reducer |
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| CN108361364A (en) * | 2018-04-04 | 2018-08-03 | 海尚集团有限公司 | Vector cycloid speed reducer |
| CN108843759A (en) * | 2018-09-11 | 2018-11-20 | 李桂君 | A kind of Eccentrically rocking type reduction gear |
| CN109139811A (en) * | 2018-09-18 | 2019-01-04 | 海尚集团有限公司 | Vector cycloid variable-speed unit |
| CN110374988A (en) * | 2019-08-16 | 2019-10-25 | 佛山市力普鑫精密技术有限公司 | A kind of single pendulum line speed reduction bearing that load-bearing capacity is strong |
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| CN108843759A (en) * | 2018-09-11 | 2018-11-20 | 李桂君 | A kind of Eccentrically rocking type reduction gear |
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| CN110374988B (en) * | 2019-08-16 | 2024-03-26 | 佛山市力普鑫精密技术有限公司 | Simple cycloid speed reducing bearing with strong load capacity |
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| CN104819253B (en) | 2017-05-17 |
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