CN102168643B - Novel structure for cycloid hydraulic motor flow distributor - Google Patents
Novel structure for cycloid hydraulic motor flow distributor Download PDFInfo
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- CN102168643B CN102168643B CN 201110078969 CN201110078969A CN102168643B CN 102168643 B CN102168643 B CN 102168643B CN 201110078969 CN201110078969 CN 201110078969 CN 201110078969 A CN201110078969 A CN 201110078969A CN 102168643 B CN102168643 B CN 102168643B
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- food tray
- thrust plate
- disk
- hydraulic motor
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Abstract
The invention relates to a novel structure for a cycloid hydraulic motor flow distributor. The novel structure comprises an oil passing disk with an oil inlet and an oil outlet, and the flow distributor which is formed by a flow distributing disk with a plurality of oil passing holes, a rotor cycloidal gear, a drum-shaped spline output shaft, a drum-shaped spline small shaft and the like, wherein the oil inlet and the oil outlet of the oil passing disk are communicated with the oil passing hole of the flow distributing disk respectively; the oil passing disk is used for accommodating the flow distributing disk; two circles of leakproof structures which are formed by elastic O-shaped rubber rings and plastic sealing rings with a self lubrication property are arranged between the contact surfaces of the oil passing disk and the flow distributing disk; and a pressure relief tank is arranged between the two circles of leakproof structures. The novel structure has the advantages of simple structure, fewer parts, lowered cost, small axial dimension and good sealing effect, lowers friction coefficient, and improves the volume efficiency and the mechanical efficiency.
Description
Technical field
The present invention relates to a kind of cycloid hydraulic motor, relate in particular to a kind of distributor new structure of cycloid hydraulic motor.
Background technique
In hydraulic transmission, adopt cycloid hydraulic motor as the executive component in the hydraulic system, in various mechanical transmission, to use quite generally, whole world year application quantity reaches up to a million.Improve volume and the mechanical efficiency of cycloid hydraulic motor and reduce manufacture cost and will produce significant economic benefit and effects of energy saving and emission reduction, the present invention puts forward under this prerequisite.
Prior art as shown in Figure 2, being provided with metallic packing ring 14, inside and outside seal ring 13, guide pillar 12 and spring 11 etc. between logical food tray 1 and thrust plate 54 both end faces is used for into and out of preventing between the hydraulic fluid port that pressure reduction from causing the obturator of leakage, the shortcoming of said structure is: 1. required part is more, complicated structure, relatively poor, the cost raising of manufacturability; 2. between logical food tray and thrust plate end face across a metallic packing ring, increased axial dimension; 3. exist between the thrust plate of fixed metallic packing ring and rotation and leak and friction, because hard metal both, being in contact with one another can not be absolute tight, therefore under differential pressure action, can produce certain leakage, this will affect the volumetric efficiency of oil hydraulic motor, and the friction factor between the metal is relatively large, and the frictional force that relative movement produces will reduce the mechanical efficiency of oil hydraulic motor.
Summary of the invention
Technical problem to be solved by this invention be to overcome the defective of prior art and propose a kind of new simple in structure, can shorten axial dimension, the loss of reducing friction, improve sealing effect, thereby volumetric efficiency and the mechanical efficiency of the new structure of raising cycloid hydraulic motor distributor.
Technical problem of the present invention solves by following technical proposals:
A kind of new structure of cycloid hydraulic motor distributor, it comprises the logical food tray with oil inlet and outlet, and by the thrust plate with a plurality of oil throughs, rotor cycloidal gear, crowned spline output shaft, the little axle of crowned spline and the distributor that forms as the "O"-ring that seals between them; The oil inlet and outlet of described logical food tray respectively with distributor in the corresponding oil through of thrust plate connect, and be provided with sealing configuration between end face at logical food tray and contacting of thrust plate, described logical food tray contains thrust plate, described rotor cycloidal gear is meshed with the cycloidal-pin wheel housing of fixing, the little axle synchronous rotary of described crowned spline output shaft and crowned spline is characterized in that the sealing configuration that described logical food tray contacts with thrust plate between end face comprises that a circle has flexible " O " type rubber seal and and encloses the plastic sealing ring composition with self-lubricating property.
Described two circle sealing configurations with flexible " O " type rubber seal and the plastic sealing ring composition with self-lubricating property are embedded in the circular groove of logical food tray end face preprocessing.
Be provided with pressure relief groove between the described two circle sealing configurations.
Compared with prior art, the present invention has changed logical food tray and has contacted sealing configuration between end face with thrust plate, adopted flexible by having " O " type rubber seal to form two circle sealing configurations with the plastic sealing ring combination with self-lubricating property, thereby make its structure become simple, dwindled axial dimension, sealing structure of rock not only has good sealability but also have the less self-lubricating property of friction factor, by the suitable decrement of " O " type rubber seal plastic sealing ring is pressed on the thrust plate end face, plastic hoop is relatively soft, thereby under " 0 " type circle elastic force and oil pressure effect, can tightly contact with thrust plate, improved sealing effect, Leakage prevention, simultaneously because plastic sealing ring and the friction factor between the thrust plate of self-lubricating property are very little, frictional loss can significantly be reduced, can improve volumetric efficiency and the mechanical efficiency of cycloid hydraulic motor, relatively existing structure, new structure can obviously improve manufacturability, also has the minimizing part, the advantage such as reduce production costs.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present invention.
Among the figure: 1, logical food tray, 2, " O " type rubber seal, 3, plastic sealing ring, 4, pressure relief groove, 5, distributor, 51, the rotor cycloidal gear, 52, the crowned spline output shaft, 53, the little axle of crowned spline, 54, thrust plate, A, B, oil inlet and outlet, A1, B1, oil through.
Fig. 2 is prior art sectional structure schematic representation.
Among the figure: 11, spring, 12, guide pillar, 13, inside and outside seal ring, 14, metallic packing ring.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is remake and to specify.
The new structure of cycloid hydraulic motor distributor of the present invention as shown in Figure 1, comprises logical food tray 1 and distributor 5 with oil inlet and outlet A, B, and the seal element between them " O " RunddichtringO.
Described distributor 5 is made of rotor cycloidal gear 51, crowned spline output shaft 52, the little axle 53 of crowned spline and thrust plate 54 etc.
The oil inlet and outlet A of described logical food tray 1 and B respectively with distributor 5 in corresponding oil through A1 and the B1 of thrust plate 54 connect, and be provided with new sealing configuration between end face at logical food tray 1 and contacting of thrust plate 54, the sealing structure comprises that two circle flexible by having " O " type rubber seal 2 form with the plastic sealing ring 3 with self-lubricating property, both are the outsourcing standard piece, and middle and high, the low pressure runner that will be led to food tray and thrust plate by them are separated.Seal but also the suitable decrement of flexible circle " O " type rubber seal of tool is pressed on seal ring the thrust plate end face and forms tight contact by not only tool, improved sealing effect.Also reduced a circle plastic sealing ring of self-lubricating property and the friction factor between the thrust plate, reduced frictional loss, thereby improved volumetric efficiency and the mechanical efficiency of oil hydraulic motor.The present invention is embedded two circle sealing configurations in the circular groove of logical food tray 1 end face preprocessing.Between two circle sealing configurations, be provided with pressure relief groove 4 simultaneously, this pressure relief groove 4 connects with the housing of the logical food tray of gerotor motor, the pressure that is used for equilibrium assignment dish two ends, thrust plate is contacted with the left side of oil hydraulic motor with less impacting force, make it both satisfy seal request, have than less friction again.
Described logical food tray 1 contains thrust plate 54, the endoporus of thrust plate is internal spline, be meshed with 53 engagements of the little axle of crowned spline and by its inner splined hole with rotor cycloidal gear 51 and be connected, rotor cycloidal gear 51 is meshed with the cycloidal-pin wheel housing of fixing, the crowned spline output shaft 52 that is meshed is installed in the splined hole of rotor cycloidal gear 51 simultaneously, rotor cycloidal gear 51 rotates under the high pressure oil effect that enters through logical food tray 1 and thrust plate 54, and drives distributors 5 synchronous rotaries by the little axle 53 of crowned spline.
Claims (3)
1. the new structure of a cycloid hydraulic motor distributor, it comprises the logical food tray with oil inlet and outlet, and by the thrust plate with a plurality of oil throughs, rotor cycloidal gear, crowned spline output shaft, the little axle of crowned spline and the distributor that forms as the "O"-ring that seals between them; The oil inlet and outlet of described logical food tray respectively with distributor in the corresponding oil through of thrust plate connect, and be provided with sealing configuration between end face at logical food tray and contacting of thrust plate, described logical food tray contains thrust plate, described rotor cycloidal gear is meshed with the cycloidal-pin wheel housing of fixing, the little axle synchronous rotary of described crowned spline output shaft and crowned spline is characterized in that the sealing configuration that described logical food tray contacts with thrust plate between end face comprises that a circle has flexible " O " type rubber seal and and encloses the plastic sealing ring composition with self-lubricating property.
2. the new structure of cycloid hydraulic motor distributor according to claim 1 is characterized in that described two circle sealing configurations with flexible " O " type rubber seal and the plastic sealing ring composition with self-lubricating property are embedded in the circular groove of logical food tray end face preprocessing.
3. the new structure of cycloid hydraulic motor distributor according to claim 1 and 2 is characterized in that being provided with pressure relief groove between described " O " type rubber seal and the plastic sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078969 CN102168643B (en) | 2011-03-25 | 2011-03-25 | Novel structure for cycloid hydraulic motor flow distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078969 CN102168643B (en) | 2011-03-25 | 2011-03-25 | Novel structure for cycloid hydraulic motor flow distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168643A CN102168643A (en) | 2011-08-31 |
| CN102168643B true CN102168643B (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110078969 Active CN102168643B (en) | 2011-03-25 | 2011-03-25 | Novel structure for cycloid hydraulic motor flow distributor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102168643B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777655B (en) * | 2012-07-13 | 2014-06-11 | 北京天地玛珂电液控制系统有限公司 | Sealed unloading groove between valve body and valve joint plate |
| CN103742353B (en) * | 2013-12-21 | 2016-01-06 | 镇江大力液压马达股份有限公司 | Flat porting cycloid hydraulic pressure motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035113A (en) * | 1976-01-30 | 1977-07-12 | Eaton Corporation | Gerotor device with lubricant system |
| US4390329A (en) * | 1980-08-20 | 1983-06-28 | Eaton Corporation | Rotary fluid pressure device and valve-seating mechanism therefor |
| DK162791C (en) * | 1983-04-04 | 1992-04-27 | Eaton Corp | GEAR MACHINE, ISAER HYDRAULIC GEAR ENGINE |
| US4639203A (en) * | 1985-06-26 | 1987-01-27 | Eaton Corporation | Rotary fluid pressure device having free-wheeling capability |
| CN2760280Y (en) * | 2004-08-26 | 2006-02-22 | 伊顿流体动力（济宁）有限公司 | Double-stator laminated plate distribution cycloidal hydraulic motor |
| CN201057122Y (en) * | 2007-04-11 | 2008-05-07 | 镇江大力液压马达有限责任公司 | Strong-sealing high-speed stream cycloid hydraulic motor and high-pressure rotating shaft seal |
-
2011
- 2011-03-25 CN CN 201110078969 patent/CN102168643B/en active Active
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| CN102168643A (en) | 2011-08-31 |
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| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO DAGANG INI HYDRAULIC CO., LTD. Free format text: FORMER OWNER: HU SHIXUAN Effective date: 20120221 |
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Free format text: CORRECT: ADDRESS; FROM: 315806 NINGBO, ZHEJIANG PROVINCE TO: 315191 NINGBO, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120221 Address after: 315191 No. 288 west head dam, Beilun District, Zhejiang, Ningbo Applicant after: Ningbo Dagang Yining Hydraulic Co., Ltd. Address before: 315806 Ningbo Dagang Hydraulic Co., Ltd., Dagang Road, Ningbo 288, Beilun District, Zhejiang, China Applicant before: Hu Shixuan |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 315806 No. 288 west head dam, Beilun District, Zhejiang, Ningbo Applicant after: Ini Hhydraulic Co., Ltd. Address before: 315191 No. 288 west head dam, Beilun District, Zhejiang, Ningbo Applicant before: Ningbo Dagang Yining Hydraulic Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NINGBO DAGANG INI HYDRAULIC CO., LTD. TO: INI HYDRAULIC CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |