CN107387308A - A kind of radial support flat porting cycloid hydraulic pressure motor - Google Patents
A kind of radial support flat porting cycloid hydraulic pressure motor Download PDFInfo
- Publication number
- CN107387308A CN107387308A CN201710788903.4A CN201710788903A CN107387308A CN 107387308 A CN107387308 A CN 107387308A CN 201710788903 A CN201710788903 A CN 201710788903A CN 107387308 A CN107387308 A CN 107387308A
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- Prior art keywords
- body shell
- bearing
- hydraulic pressure
- cycloid hydraulic
- motor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/22—Rotary-piston engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
Abstract
The present invention relates to a kind of radial support flat porting cycloid hydraulic pressure motor, belong to hydraulic transmission technology field.The motor of the present invention mainly includes body shell, the output axle construction that is placed in body shell and turn stator it is secondary, with streaming system and bonnet, former and later two cylinder roller bearings are supported on the output shaft, output shaft sets boss step to be resisted against and separates two bearings, boss step is resisted against on the cylindrical roller of front and back bearings, the front and back bearings are the bearing of different length, and the fore bearing length is more than rear bearing length.After the present invention, the ability that plane distributing construction cycloid hydraulic motor output shaft has the support of bigger radial load is may be such that, the radial force supporting construction of motor is simple, and reliability is higher, has more extensive operating mode application adaptability.
Description
Technical field
The present invention relates to the cycloid hydraulic motor that a kind of hydraulic energy is changed to mechanical energy, is especially supported with big radial load
A kind of radial support flat porting cycloid hydraulic pressure motor of ability structure, belongs to hydraulic transmission technology field.
Background technology
Cycloid hydraulic motor is a kind of low-speed big torque motor, has big small volume, specific power density, efficiency high, turns
The advantages that fast scope is wide, thus be widely applied, improving application as industrial and agricultural development is horizontal will be more extensive.
Cycloid hydraulic motor mainly has axle flow and plane flow, and axle flow motor is matched somebody with somebody due to the duct in the diameter of axle and aperture
The axial flow distribution feature of intermittent motion is closed, and plane flow is due to the mutual flow feature in different sagittal plane ducts.
The basic structure of such device be body shell or after cover and be formed with inlet and refluxing opening, one end is nibbled equipped with cycloidal-pin wheel
Secondary and flow-distribution mechanism is closed, flow-distribution mechanism can be placed on before or after cycloidal pinion engaged pair, typically preceding（Body shell side）For axle
Flat valve, rear（Bonnet side）For plane flow, the other end is equipped with output shaft.The rotor of cycloidal pinion engaged pair passes through interior flower
Key engages with the external gear of universal driving shaft one end, and the other end of universal driving shaft is connected with output shaft transmission.During work, flow-distribution mechanism make into
Liquid mouth engages chamber connection with the extension of cycloidal pin wheel set, and the contraction chamber of cycloidal pin wheel set is connected with refluxing opening.As a result, pressure
For liquid after inlet enters body shell or bonnet, chamber is engaged in the extension formed into cycloidal pinion engaged pair, makes its volume continuous
Expand, while liquid then flows back from refluxing opening in the contraction engagement chamber of cycloidal pinion engaged pair formation；In the process, cycloidal pin
The rotor of wheel Meshing Pair, which is expanded engagement chamber and engage the pressure differential of chamber with shrinking, drives rotation, and this is rotated and passes through universal driving shaft biography
Output shaft output is delivered to, so as to realize conversion of the hydraulic energy to mechanical energy.At the same time, flow-distribution mechanism（Axle valve）Also by universal driving shaft
Rotation is driven, the continuous switching connected state to go round and begin again, transfer process is continued.So, motor can connects
Continuous output torque.
According to the applicant understood, existing medium-sized flat porting cycloid hydraulic pressure motor（As DANFOSS companies OMS series,
2000 series, the BMSY series etc. of applicant of EATON companies）There is the Φ 82.55 or similar sizes of SAE A type standards mostly
Seam motor size for connection, it is about 102 Χ 102 to turn stator appearance and size, and output shaft is supported using two taper roll bearings, and two
Isolated between bearing using spacer, pretension is carried out using nut, and deform locking, this bearing support mode is feasible on the whole
's.But when the radial load of output shaft shaft extension is larger, as shaft extension directly supports simultaneously driving moment, long period use, circular cone
The unreliability phenomenon that roller bearing has loosening occurs, and so as to cause axle envelope oil leakage phenomenon to occur, and can not meet market
Specific operation demand.
The content of the invention
The technical problem to be solved in the present invention is：By to Φ 82.55 or similar sizes seam with SAE A type standards
The medium-sized plane distributing construction cycloid hydraulic motor integral layout research of motor size for connection, because its 6/7 tooth turns the secondary knot of stator
Structure is compact and motor profile is smaller, and taper roll bearing specification is small to cause size smaller, and application need to propose there is big radial load
The technical scheme of enabling capabilities structural plan distributing cycloid hydraulic motor, meet the use demand of new demand.
The primary and foremost purpose of the present invention is：The shortcomings that existing for above-mentioned prior art, propose a kind of radial support plane
Distributing cycloid hydraulic motor, by being innovated to output shaft supporting structure, ensure that motor shaft extension has the enabling capabilities of big radial load,
And the reliability of bearing radial load support, so as to ensure the reliability of the sealing of the axle envelope in motor operation, spindle nose is oil-proof.
In order to reach above primary and foremost purpose, a kind of radial support flat porting cycloid hydraulic pressure motor basic fundamental side of the present invention
Case is：Including the body shell with installation mounting flange face and positioning spigot, the output shaft knot for the torque output being placed in body shell
Structure, and turn stator pair, the bonnet with streaming system and fluid disengaging motor inner chamber using what connecting bolt was connected with the body shell；
It is theed improvement is that：Described body shell front end stepped hole is provided with rotary shaft sealing, and described body shell inner chamber sets support output
Two front and back bearings of axle, described body shell rear end are provided with connecting plate, and described front and back bearings use cylinder roller bearing, institute
State cylinder roller bearing to be made up of cylindrical roller and support frame, described output shaft sets boss step, described boss step
Front and back bearings are separated, described boss step is resisted against on the cylindrical roller of front and back bearings.
The cylinder roller bearing is full-complement cylinder roller bearing, and the cylindrical roller is arranged on the grinding of support frame
Groove in, described cylinder roller bearing can bear radial load and axial force.
The perfect of above technical scheme be：The front and back bearings are the bearing of different length, and the fore bearing length is more than
Bearing length afterwards.
The supporting framing front end of the fore bearing be resisted against body shell installation hole end surface, it is described after bearing support frame rear end against
In the end face of connecting plate.
Above technical scheme is further improved：The output shaft also sets up for axis of cone connected mode, axis of cone front end
One step, the flange connection of the body shell is four hole wheel flange connections.
From above-mentioned, after the present invention, it is bigger to may be such that plane distributing construction cycloid hydraulic motor output shaft has
The ability of radial load support, the radial force supporting construction of motor is simple, and reliability is higher, has more extensive operating mode application
Adaptability.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Slotted nut 1 in figure, back-up ring 2, output shaft 3, key 4, dust ring 5, axle envelope 6, body shell 7, fore bearing 8, rear bearing 9,
Universal driving shaft 10, sealing gasket 11, screw plug 12, stator 13, pin tooth 14, rotor 15, steel ball 16, O-ring 17, oil port cover 18, O-ring
19, bonnet 20, O-ring 21, flow platen 22, limited post 23, wavy spring 24, pin 25, connecting bolt 26, valve plate 27, match somebody with somebody
Flow supporting plate 28, flow universal driving shaft 29, dish-shaped ring 30, connecting plate 31, O-ring 32.
Fig. 2 turns stator auxiliary structure schematic diagram for one embodiment of the invention.
Stator 01, rotor 02, pin tooth 03.
Fig. 3 is a kind of mounting flange appearance schematic diagram of one embodiment of the invention.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is being carried out in fact premised on technical solution of the present invention
Apply, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following embodiments.
A kind of embodiment of radial support flat porting cycloid hydraulic pressure motor of the present invention is using a kind of based on the engagement of 6/7 tooth
Edge pillar cycloid turns stator pair, and the cycloid, which turns stator pair, has small cross sections size, similar cubic profile, cubic appearance and size
For 102 × 102 or so, as shown in Figure 2 turns stator auxiliary structure schematic diagram, including stator 01, rotor 02, pin tooth 03.The present invention
Cycloid hydraulic motor is formed as shown in figure 1, including the body shell 7 with installation mounting flange face and positioning spigot substantially, is placed in
The structure of output shaft 3 of torque output in body shell 7, and using the turning of being connected of connecting bolt 26, stator is secondary, matches somebody with somebody with the body shell 7
Streaming system and the bonnet 20 of fluid disengaging motor inner chamber, the described front end stepped hole of body shell 7 is provided with rotary shaft sealing 6, described
The inner chamber of body shell 7 sets two front and back bearings of support output shaft 1.
Described front and back bearings are fore bearing 8 and rear bearing 9, and the described rear end of body shell 7 is provided with connecting plate 31, described
Fore bearing 8 and rear bearing 9 use cylinder roller bearing, and the cylinder roller bearing is full-complement cylinder roller bearing, the circle
Post roller bearing is made up of cylindrical roller and support frame, and the cylindrical roller is arranged in the groove of support frame, support frame as described above
Groove be process using grinding process, so, described cylinder roller bearing can bear radial load and axial force.
The supporting framing front end of the fore bearing 8 is resisted against body shell installation hole end surface, and the support frame rear end of the rear bearing 9 is supported
The end face of connecting plate 31 is leaned against, described output shaft 3 sets boss step, and described boss step separates front and back bearings,
Described boss step is resisted against on the cylindrical roller of front and back bearings, and such can of output shaft 3 bears former and later two directions
Axial force.
To the perfect of the present invention program, the front and back bearings are the bearing of different length, and the length of the fore bearing 8 is more than
The length of bearing 9 afterwards, because fore bearing 8 undertakes the main shaft extension radial load of output shaft 3, then bearing 9 undertakes the minor axis of output shaft 3
Radial load is stretched, the ingehious design of front and back bearings different length can further increase the radial load ability to bear of shaft extension, carry simultaneously
Rise product Hu self-strength and further lift reliability.
Further improve to the present invention program is that the output shaft 3 also sets for axis of cone connected mode, axis of cone front end
A step is put, the flange connection of the body shell is four hole wheel flange connections.
Experiment proves, due to above-described embodiment take it is a series of it is effective improve corrective measure, therefore by hydraulic motor
Radial load ability to bear improve, so as to improve the reliability of axle envelope, and motor remains original compact-sized, and part adds
Work, the technique of assembling are good, and the isolating construction of output shaft increase spacer contributes to the lifting of motor output shaft assembly process process.
In addition to the implementation, the present invention can also have an other embodiment, such as one kind shown in Fig. 3 has SAE A
The Φ 82.55 of type standard or the mounting flange of similar sizes seam motor size for connection, etc..It is all to use equivalent substitution or equivalent
The technical scheme formed is converted, all falls within the protection domain of application claims.
Claims (5)
1. a kind of radial support flat porting cycloid hydraulic pressure motor, including the body with installation mounting flange face and positioning spigot
Shell, the output axle construction for the torque output being placed in body shell, and turn stator using what connecting bolt was connected with the body shell
Bonnet secondary, with streaming system and fluid disengaging motor inner chamber；It is characterized in that：Described body shell front end stepped hole is provided with rotation
Axle envelope, described body shell inner chamber set two front and back bearings of support output shaft, and described body shell rear end is provided with connecting plate, institute
The front and back bearings stated use cylinder roller bearing, and the cylinder roller bearing is made up of cylindrical roller and support frame, and described is defeated
Shaft sets boss step, and described boss step separates front and back bearings, and described boss step is resisted against front and back bearings
On cylindrical roller.
A kind of 2. radial support flat porting cycloid hydraulic pressure motor according to claim 1, it is characterised in that：The cylinder
Roller bearing is full-complement cylinder roller bearing, and the cylindrical roller is arranged in the groove of the grinding of support frame, described
Cylinder roller bearing can bear radial load and axial force.
A kind of 3. radial support flat porting cycloid hydraulic pressure motor according to claim 2, it is characterised in that：It is described front and rear
Bearing is the bearing of different length, and the fore bearing length is more than rear bearing length.
A kind of 4. radial support flat porting cycloid hydraulic pressure motor according to claim 3, it is characterised in that：The front axle
The supporting framing front end held is resisted against body shell installation hole end surface, and the support frame rear end of the rear bearing is resisted against one end of connecting plate
Face.
A kind of 5. radial support flat porting cycloid hydraulic pressure motor according to claim 4, it is characterised in that：The output
Axle also sets up a step for axis of cone connected mode, axis of cone front end, and the flange connection of the body shell is four hole wheel flanges
Connected mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710788903.4A CN107387308A (en) | 2017-09-05 | 2017-09-05 | A kind of radial support flat porting cycloid hydraulic pressure motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710788903.4A CN107387308A (en) | 2017-09-05 | 2017-09-05 | A kind of radial support flat porting cycloid hydraulic pressure motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387308A true CN107387308A (en) | 2017-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710788903.4A Pending CN107387308A (en) | 2017-09-05 | 2017-09-05 | A kind of radial support flat porting cycloid hydraulic pressure motor |
Country Status (1)
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| CN (1) | CN107387308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103681A1 (en) * | 2016-12-08 | 2018-06-14 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor |
| CN111197552A (en) * | 2018-11-17 | 2020-05-26 | 镇江大力液压马达股份有限公司 | Plane flow distribution cycloid hydraulic motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3406543A1 (en) * | 1984-02-23 | 1985-09-05 | Rudolf 8000 München Braren | Positive displacement machine, in particular an epicyclic cycloidal gear mechanism with an integrated hydraulic motor |
| CN202381249U (en) * | 2011-12-22 | 2012-08-15 | 镇江大力液压马达有限责任公司 | Multi-drainage runner and oil port cycloid hydraulic motor |
| CN203214596U (en) * | 2013-04-02 | 2013-09-25 | 常州市武进永达机械轴承有限公司 | Cylindrical roller bearing |
| CN203584678U (en) * | 2013-11-20 | 2014-05-07 | 镇江大力液压马达股份有限公司 | Shaft valve flow-distributed cycloid hydraulic motor |
| CN207500042U (en) * | 2017-09-05 | 2018-06-15 | 镇江大力液压马达股份有限公司 | A kind of radial support flat porting cycloid hydraulic pressure motor |
-
2017
- 2017-09-05 CN CN201710788903.4A patent/CN107387308A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3406543A1 (en) * | 1984-02-23 | 1985-09-05 | Rudolf 8000 München Braren | Positive displacement machine, in particular an epicyclic cycloidal gear mechanism with an integrated hydraulic motor |
| CN202381249U (en) * | 2011-12-22 | 2012-08-15 | 镇江大力液压马达有限责任公司 | Multi-drainage runner and oil port cycloid hydraulic motor |
| CN203214596U (en) * | 2013-04-02 | 2013-09-25 | 常州市武进永达机械轴承有限公司 | Cylindrical roller bearing |
| CN203584678U (en) * | 2013-11-20 | 2014-05-07 | 镇江大力液压马达股份有限公司 | Shaft valve flow-distributed cycloid hydraulic motor |
| CN207500042U (en) * | 2017-09-05 | 2018-06-15 | 镇江大力液压马达股份有限公司 | A kind of radial support flat porting cycloid hydraulic pressure motor |
Non-Patent Citations (2)
| Title |
|---|
| 吕承湛: "《轴承型号新旧对照指南》", 30 September 1999, 机械工业出版社 * |
| 周恩涛等: "《液压系统设计元器件选型手册》", 30 September 2007, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018103681A1 (en) * | 2016-12-08 | 2018-06-14 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor |
| CN111197552A (en) * | 2018-11-17 | 2020-05-26 | 镇江大力液压马达股份有限公司 | Plane flow distribution cycloid hydraulic motor |
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Application publication date: 20171124 |
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