CN102808721B - Cycloid hydraulic motor structure - Google Patents
Cycloid hydraulic motor structure Download PDFInfo
- Publication number
- CN102808721B CN102808721B CN201210297566.6A CN201210297566A CN102808721B CN 102808721 B CN102808721 B CN 102808721B CN 201210297566 A CN201210297566 A CN 201210297566A CN 102808721 B CN102808721 B CN 102808721B
- Authority
- CN
- China
- Prior art keywords
- thrust plate
- end cover
- output shaft
- rear end
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Hydraulic Motors (AREA)
Abstract
The invention relates to the technology of motors, and aims to provide a cycloid hydraulic motor structure, wherein the output shaft of the motor penetrates a front end cover, a wear-resistant disk, a cycloid gear mesh structure, an auxiliary valve plate and a main valve plate that are sequentially arranged, so as to be connected with a rear end cover, and a main valve plate spacing ring is sleeved outside the main valve plate; the bottom end and the middle part of the motor output shaft are fixed on the rear end cover and the front end cover through bearings respectively; the epicycloid of an epicycloid gear is meshed with the inner circle of a floating outer stator through the outer circle of a meshed roller, the outer circle of the floating outer stator is partially meshed with the inner circle of an outer fixed disk through the outer circle of an anti-rolling roller, the outer circle of an anti-rolling ball is tangent to the groove of the outer fixed disk, and the epicycloidal gear is directly connected with the motor output shaft through a spline. The cycloid hydraulic motor structure greatly simplifies the conventional cycloid motor structure, so as to obviously reduce the axial dimension of the cycloid motor; and the pressure oil part of the cycloid motor can perform 360-degree revolution motion, so as to realize the smooth switch in forward and reverse directions.
Description
Technical field
The present invention relates to motor technologies, particularly cycloid hydraulic motor structure, this motor, except can meeting the feature of traditional cycloid hydraulic motor low-speed big, can also make the axial dimension of cycloid hydraulic motor reduce greatly, make structure compacter.
Background technique
Now, no matter be on-the-spot in scientific investigation or industrial site, mechanism hand is seen everywhere.Mechanism hand is powerful, can be engaged in the operation of various complexity, and hydraulic efficiency manipulator occupies very large proportion in all kinds of mechanism hand, and the wherein rotation in each joint of hydraulic efficiency manipulator, wobbling action, all realized by oil hydraulic motor and oil cylinder.
Hydraulic efficiency manipulator is with its larger output power, and compact structure, is widely used in severe working environment.Be normally used for the oil hydraulic motor as mechanical arm wrist joint rotary motion executive component, not only require higher moment of torsion and export but also need lower rotating speed.Although widely used low-speed big torque motor can export comparatively high pulling torque now, its physical dimension is comparatively large and low-speed performance is good not.And cycloid hydraulic motor can stable compared with reliably exporting larger moment of torsion under the slow-speed of revolution, these characteristics make gerotor motor be applicable to being used as the executive component of mechanism hand continuous rotation motion.
But existing gerotor motor is axial-flow type or valve plate distribution formula is all adopt spline coupling cycloid rotor revolution eliminated and retain the way of output of rotation, and such mechanical structure greatly increases the axial dimension of gerotor motor.Be applied to mechanical arm wrist joint as one, provide the actuator of rotating power, excessive motor axial dimension, reduces the space of mechanism hand undoubtedly.Meanwhile, be no matter in use or visually, all make mechanism hand become heavier, underaction.So, the less hydraulic gerotor motor of axial dimension can be designed thus the wrist joint of hydraulic efficiency manipulator can be accomplished short and pithy is problem demanding prompt solution.
The manufacturer of domestic and international gerotor motor and product type all have a lot.But the structure of gerotor motor is all similar, does not meet the low-speed big required for mechanical arm wrist joint and there is the finished product motor of less axial dimension.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes deficiency of the prior art, provides a kind of novel cycloid hydraulic motor structure.The present invention proposes the imagination of valve plate distribution external stator float type high pressure cycloid hydraulic motor and develop, its core is on the architecture basics of existing epicycloid level of processing and valve plate distribution epicycloid motor, develops the New-type cycloidal oil hydraulic motor not identical on mechanical structure, flow scheme and motor pattern with traditional cycloid hydraulic motor.
For technical solution problem, solution of the present invention is:
A kind of cycloid hydraulic motor structure is provided, comprises motor output shaft; Motor output shaft is connected to rear end cover, the sheathed main thrust plate spacer ring in outside of main thrust plate after running through front cover, Wear resistance disk, cycloidal gear meshing engagement structure, auxiliary thrust plate and the main thrust plate arranged successively; The bottom of motor output shaft and middle part are fixed on rear end cover and front cover respectively by bearing; Described cycloidal gear meshing engagement structure comprises: epicycloidal gear sheathed successively from inside to outside, engagement roller, float type external stator, anti-rotation roller and extenal fixation dish; Wherein, the epicycloid of epicycloidal gear is engaged by the cylindrical engaging roller with the inner circle of float type external stator, the cylindrical of float type external stator engages with the cylindrical local of the inner circle of extenal fixation dish by anti-rotation roller, the cylindrical of anti-rotation ball and the groove of extenal fixation dish tangent, epicycloidal gear is directly connected with motor output shaft by spline.
In the present invention, described front cover, Wear resistance disk, extenal fixation dish, auxiliary thrust plate, main thrust plate spacer ring and rear end cover realize being fastenedly connected by bolt.
In the present invention, rear end cover is provided with 3 oilholes communicated with main thrust plate, and is connected to oil supply loop respectively by oil pipe; 3 oilholes are respectively filler opening, oil outlet and drain tap.
In the present invention, fitting for pasta and rear end cover of main thrust plate, point pasta of main thrust plate and fitting for pasta of auxiliary thrust plate; Point pasta of auxiliary thrust plate and epicycloidal gear and the float type external stator cavity volume formed that is meshed is connected.Fluid enter main thrust plate for pasta, then from point pasta of main thrust plate enter auxiliary thrust plate for pasta, final fluid enters from point pasta of auxiliary thrust plate and engages cavity volume between epicycloidal gear with float type external stator.
In the present invention, between motor output shaft and front cover, be provided with Sealing; Sealing is established between fixing bolt and rear end cover.Select O type circle to seal between motor output shaft and end cap, all the other parts that contact also adopt the sealing of O type circle.
In the present invention, described motor output shaft and the bearing between rear end cover and front cover are deep groove ball bearings.
Hydraulic oil enters the engagement cavity volume of epicycloidal gear by oil pipe, and epicycloidal gear is rotated, and float type external stator carries out translational motion, and motor output shaft is connected with epicycloidal gear by spline, from output speed and moment of torsion.
The invention has the beneficial effects as follows:
1, the present invention has simplified the structure of traditional gerotor motor greatly in result, makes the axial dimension of gerotor motor obtain obvious reduction;
2, the gerotor motor force feed part that the present invention adopts can do the rotation motion of 360 °, also can realize forward and reverse smooth switching.
Accompanying drawing explanation
Fig. 1 is generalized section of the present invention;
Fig. 2 is the structural drawing of epicycloidal gear mate;
Fig. 3 is the outline drawing of product in Fig. 1;
Fig. 4 is the right elevation of product in Fig. 3.
Embodiment
For a more detailed description to the present invention below in conjunction with accompanying drawing:
Adopt six tooth epicycloidal tooth wheel constructions as description object, composition graphs 1, the present invention is by epicycloidal gear 1, engagement roller 2, float type external stator 3, anti-rotation roller 4, extenal fixation dish 5, and rear end cover 6, main thrust plate 7, main thrust plate spacer ring 8, auxiliary thrust plate 9, Wear resistance disk 10, deep groove ball bearing 11, motor output shaft 12, sealing material 13, front cover 14, fixing bolt 15 form; Oil pipe joint on rear end cover 6 is connected with rear end cover 6 by screw thread, and fixing bolt 15 is connected with front cover 14 by screw thread; Angular contact ball bearing 11 is arranged in front and rear cover 6 and rear end cover 14 respectively, and sealing material 13 is arranged in front cover 14, and motor output shaft 12 is connected with epicycloidal gear 1, contacts with deep groove ball bearing 11 simultaneously; Fitting for pasta and rear end cover 6 of main thrust plate 7; Point pasta of main thrust plate 7 and fitting tightly for pasta of auxiliary thrust plate 8; Point oily side of auxiliary thrust plate 8 and epicycloidal gear 1 and float type external stator 3 cavity volume formed that is meshed is connected.
Composition graphs 2, the epicycloid of epicycloidal gear 1 is engaged by the cylindrical engaging roller 2 with the inner circle of float type external stator 3; The cylindrical of float type external stator 3 engages with the cylindrical local of the inner circle of extenal fixation dish 5 by anti-rotation roller 4; The cylindrical of anti-rotation ball 4 and the groove of extenal fixation dish 5 tangent; Gerotor motor output shaft 12 engages with the spline tooth of epicycloidal gear 1 through gerotor motor inner space part; Extenal fixation dish 5, rear end cover 6, main thrust plate spacer ring 8, Wear resistance disk 10, front cover 14 are connected by fixing bolt 15.
Claims (1)
1. a cycloid hydraulic motor structure, comprises motor output shaft; It is characterized in that, motor output shaft is connected to rear end cover, the sheathed main thrust plate spacer ring in outside of main thrust plate after running through front cover, Wear resistance disk, cycloidal gear meshing engagement structure, auxiliary thrust plate and the main thrust plate arranged successively; The bottom of motor output shaft and middle part are fixed on rear end cover and front cover respectively by bearing;
Described cycloidal gear meshing engagement structure comprises: epicycloidal gear sheathed successively from inside to outside, engagement roller, float type external stator, anti-rotation roller and extenal fixation dish; Wherein, the epicycloid of epicycloidal gear is engaged by the cylindrical engaging roller with the inner circle of float type external stator, the cylindrical of float type external stator engages with the cylindrical local of the inner circle of extenal fixation dish by anti-rotation roller, the cylindrical of anti-rotation ball and the groove of extenal fixation dish tangent, epicycloidal gear is directly connected with motor output shaft by spline;
Described front cover, Wear resistance disk, extenal fixation dish, auxiliary thrust plate, main thrust plate spacer ring and rear end cover realize being fastenedly connected by bolt;
Rear end cover is provided with 3 oilholes communicated with main thrust plate, and is connected to oil supply loop respectively by oil pipe; 3 oilholes are respectively filler opening, oil outlet and drain tap;
Fitting for pasta and rear end cover of main thrust plate, point pasta of main thrust plate and fitting for pasta of auxiliary thrust plate; Point pasta of auxiliary thrust plate and epicycloidal gear and the float type external stator cavity volume formed that is meshed is connected;
Sealing is provided with between motor output shaft and front cover; Sealing is established between fixing bolt and rear end cover;
Described motor output shaft and the bearing between rear end cover and front cover are deep groove ball bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210297566.6A CN102808721B (en) | 2012-08-20 | 2012-08-20 | Cycloid hydraulic motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210297566.6A CN102808721B (en) | 2012-08-20 | 2012-08-20 | Cycloid hydraulic motor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808721A CN102808721A (en) | 2012-12-05 |
| CN102808721B true CN102808721B (en) | 2015-07-22 |
Family
ID=47232552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210297566.6A Active CN102808721B (en) | 2012-08-20 | 2012-08-20 | Cycloid hydraulic motor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102808721B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401864B (en) * | 2016-09-18 | 2018-07-10 | 李海荣 | A kind of shell turns cycloid hydraulic motor |
| CN106286112A (en) * | 2016-11-01 | 2017-01-04 | 国家电网公司 | A kind of cycloid hydraulic motor structure |
| CN108506156B (en) * | 2018-04-13 | 2023-12-05 | 杭州宇控机电工程有限公司 | Elbow joint swing hydraulic motor for full sea depth hydraulic manipulator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563136A (en) * | 1982-07-02 | 1986-01-07 | Parker-Hannifin Corporation | High torque low speed hydraulic motor with rotary valving |
| CN2100511U (en) * | 1991-04-16 | 1992-04-01 | 王时正 | Internal engagement epicycloidal oil pump |
| CN201129268Y (en) * | 2007-12-24 | 2008-10-08 | 李喜阳 | Variable oil motor |
| CN101639033A (en) * | 2008-07-31 | 2010-02-03 | 廖振宜 | Cycloidal hydraulic motor with engaged rotation of external rotor and internal gear |
| CN202732214U (en) * | 2012-08-20 | 2013-02-13 | 杭州宇控机电工程有限公司 | Cycloid hydraulic motor structure |
-
2012
- 2012-08-20 CN CN201210297566.6A patent/CN102808721B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563136A (en) * | 1982-07-02 | 1986-01-07 | Parker-Hannifin Corporation | High torque low speed hydraulic motor with rotary valving |
| CN2100511U (en) * | 1991-04-16 | 1992-04-01 | 王时正 | Internal engagement epicycloidal oil pump |
| CN201129268Y (en) * | 2007-12-24 | 2008-10-08 | 李喜阳 | Variable oil motor |
| CN101639033A (en) * | 2008-07-31 | 2010-02-03 | 廖振宜 | Cycloidal hydraulic motor with engaged rotation of external rotor and internal gear |
| CN202732214U (en) * | 2012-08-20 | 2013-02-13 | 杭州宇控机电工程有限公司 | Cycloid hydraulic motor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102808721A (en) | 2012-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101959269B1 (en) | And apparatus for coaxially outputting rotation and revolution | |
| TW201512541A (en) | Gear pump or hydraulic gear motor with helical toothing provided with hydraulic system for axial thrust balance | |
| CN101372992B (en) | Method for converting fluid input into torque and swinging angle outputs and specific oil cylinder | |
| CN102808721B (en) | Cycloid hydraulic motor structure | |
| CN101502965B (en) | Hydraulic driving mechanical wrist part structure | |
| CN102644588B (en) | Fluid pressure and mechanical energy converter | |
| CN2875727Y (en) | Wrist structure of underwater mechanical hand | |
| CN201225348Y (en) | Hydraulic two-stage spiral swinging oil cylinder | |
| CN101864893A (en) | Screw rod drilling tool | |
| CN109944792A (en) | A kind of double pressure double-direction gearpumps | |
| CN100430191C (en) | Underwater mechanical arm wrist portion structure for high strength operation underwater robot | |
| CN201671534U (en) | Screw drilling tool | |
| CN202732214U (en) | Cycloid hydraulic motor structure | |
| CN102477936A (en) | Triangular-rotor hydraulic motor | |
| CN201176930Y (en) | Gear ring pump | |
| CN204253749U (en) | The speed reducer of a kind of involute gear and cycloidal gear combination transmission | |
| CN205207580U (en) | Hydraulic rotary power assembly that engineering machinery was used | |
| CN109458383B (en) | Heavy-load combined stepping actuating mechanism | |
| CN101265898A (en) | Planet cyclic gear train type polygonal rotor pump | |
| CN203835710U (en) | Improved NCB internal gear pump | |
| CN112178001A (en) | Hydraulic cycloid motor | |
| Ding | Application of non-circular planetary gear mechanism in the gear pump | |
| CN207111332U (en) | A kind of ship hand steering gear novel plunger-type self-lock manual pump | |
| CN2097295U (en) | Internal-engagement internal cycloidal oil pump | |
| CN206290430U (en) | A kind of external gear for fluid transmission pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |