CN106704089A - Flow distribution cycloid hydraulic motor for axial flow valve - Google Patents
Flow distribution cycloid hydraulic motor for axial flow valve Download PDFInfo
- Publication number
- CN106704089A CN106704089A CN201611201729.0A CN201611201729A CN106704089A CN 106704089 A CN106704089 A CN 106704089A CN 201611201729 A CN201611201729 A CN 201611201729A CN 106704089 A CN106704089 A CN 106704089A
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- China
- Prior art keywords
- body shell
- protecgulum
- axle
- hydraulic motor
- output shaft
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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 invention relates to a flow distribution cycloid hydraulic motor for an axial flow valve, and belongs to the technical field of hydraulic transmission. Front and rear radial force supports are arranged on an output shaft of the motor; the front support arranged at the front end of the output shaft is a full complement cylindrical roller bearing; the excircle of the front support is mounted on the inner hole surface of a body shell; the incircle of the roller is mounted on the shaft diameter of an installation shaft seal of the output shaft; a supporting frame presses against a check ring in a stepped hole of a front cover through a plane bearing; the body shell is provided with an installation and locating rabbet circular surface; the front cover is arranged in the rabbet circular surface. By the adoption of the flow distribution cycloid hydraulic motor, the motor can bear higher radial force, and the motor installation rabbet is more reliable; furthermore, the manufacturability of all manufacturing factors is high; the size precision and the position precision of all the parts are easy for process control; the overall assembling capacity is high, and the overall maintainability is high, so that the reliability and the user value of a product are further improved.
Description
Technical field
The cycloid hydraulic pressure horse that hydraulic energy is changed to mechanical energy is realized by cycloidal-pin wheel group Meshing Pair the present invention relates to a kind of
Reach, especially with a kind of axle valve flow distribution cycloid hydraulic motor of full dress roller bearing supports, belong to hydraulic transmission technology field.
Background technology
Cycloid hydraulic motor is conventional fluid pressure drive device, is a kind of low-speed big torque motor, with small volume, unit
Power density is big, efficiency high, the range of speeds wide the advantages of, be widely applied, and with industrial and agricultural development level is improved should
With will be more extensive.
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）It is axle
Flat valve, rear（Bonnet side）It is plane flow, the other end is equipped with output shaft.The rotor of cycloidal pinion engaged pair passes through interior flower
Key is engaged 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
After liquid enters body shell or bonnet from inlet, chamber is engaged into the extension that cycloidal pinion engaged pair is formed, make its volume continuous
Expand, while liquid then flows back from refluxing opening during chamber is engaged in the contraction that cycloidal pinion engaged pair is formed；In the process, cycloidal pin
The rotor of wheel Meshing Pair is expanded the pressure differential for engaging chamber with contraction in engagement chamber and orders about rotation, and this rotation is passed by universal driving shaft
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 is also driven by universal driving shaft and revolves
Turn, the continuous switching connected state for going round and beginning again enables transfer process to continue, motor just can continuous output speed
With moment of torsion.
According to the applicant understood, the compact axle valve flow distribution cycloid hydraulic motor application development of existing structure is rapid, its structure warp
Cross development in nearly 60 years very classical, the work of the underloading radial load for being especially suitable for much driving external gear pump or chain wheel drive
Condition, and with the axle valve flow distribution cycloid hydraulic motor of front and rear needle bearing support, the China of such as notification number CN103620942B is specially
The axle valve flow distribution cycloid hydraulic motor of sharp document can be very good to solve the problems, such as the stress of motor, the high accuracy technique of motor
The problems such as, but the assembling problem and output shaft of the one of bearing of motor replace the difficulty that may cause one of bearing damage
Topic is difficult to solve.
The content of the invention
The technical problem to be solved in the present invention is：By to the Φ with SAE A type standards with cycloid hydraulic motor
The research of the integral structure layout of 82.55 similar sizes seam motors, will especially install seam using having front-cover structure, defeated
The rear and front end of shaft has the axle valve flow distribution cycloid hydraulic motor of support, on the premise of existing installation dimension is kept, proposes
A kind of machinability, assembling capacity, maintenanceability manufacturability is all good and the control of seam positional precision reliably has protecgulum knot
The axle valve flow distribution cycloid hydraulic motor of structure compact conformation, with the requirement met customer need.
It is an object of the invention to：For the shortcoming that above-mentioned prior art is present, a kind of axle Flat valve cycloid hydraulic pressure is proposed
Motor, strengthens the bearing capacity of radial load spring bearing, self-strength and reliability, the innovation of structure increase the assembling of motor with
Maintenanceability, and by the innovation of protecgulum and its sealing structure, lifting has the seam positional precision and intensity of protecgulum motor,
Processing technology difficulty of Motor Components etc. is reduced on the whole.
In order to reach object above, a kind of cycloid hydraulic motor basic technical scheme of the invention is：Including with Method for Installation
The body shell in blue face, the output axle construction of the torque output being placed in body shell, and be connected using connecting bolt with the body shell
Turn that stator is secondary, runner and bonnet with streaming system and fluid turnover motor inner chamber；It is theed improvement is that：The body shell with it is defeated
The inner hole surface that shaft matches has flow duct, and the output shaft has the diameter of axle with chute matched with body shell flow duct,
The front end of the output shaft sets front support, and the endoporus surface rear end of the body shell sets rear support, and the front support is full dress circle
Post roller bearing, in the cylindrical inner hole surface installed in body shell of support frame of the cylinder roller bearing, the cylinder roller bearing
Roller inscribed circle be arranged on output shaft the installation axle envelope diameter of axle on, support frame as described above is resisted against installed in preceding by plane bearing
On back-up ring in lid stepped hole, the rear support is supported on the diameter of axle with chute disc of output shaft.
Described rear support is needle bearing structure, or substitutes needle bearing structure using composite bearing.
Above technical scheme is further improved：The body shell have install positioning spigot disc, the body shell only
Intraoral to be provided with protecgulum, the protecgulum is provided with rotary shaft sealing, and one end of the protecgulum is the step of protrusion, the step disc
Gap being carried out with body shell hole and coordinating positioning, the protecgulum step sets an annular groove, and annular groove installs O-ring seals, described protecgulum
It is upper that there is part screw socket cap mounting hole, there is part screw socket cap mounting hole, the circle of the screw in described body shell
Column cap mounting hole is collectively forming by the mounting hole on protecgulum and in body shell, and the protecgulum is fixed together using screw with body shell.
The protecgulum carries out spacing replacement protecgulum step positioning, the body shell outer end of hole using back-up ring is cylindrical with body shell endoporus
One annular distance is set, and the annular distance installs O-ring seals with protecgulum plane formation one is towards the cavity of inner chamber and installs sealing ring
Carry out cavity sealing.
Above technical scheme is further improved：The output shaft rear end sets composite bearing, substitutes the interior of body shell
The rear support that hole face rear end is set.
Compared with the gerotor motor of prior art, motor can bear bigger big footpath after above-mentioned improved structure of the invention
Xiang Li, while motor is installed, seam is more reliable, and the processing technology of each machining element is good, the dimensional accuracy of each part and position
Precision is easy to process control, and overall assembling is good, and whole machine maintainability is good, so as to further increase reliability and the user of product
Value.
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.
Output shaft 1 in figure, key 2, dust ring 3, axle envelope 4, screw 5, protecgulum 6, body shell 7, oil port cover 8, elastomer 9, valve ball
10, valve body 11, sealing ring 12, O-ring 13, every disk 14, turns stator pair 15, and bonnet 16, plug screw 17, pad 18, steel plate washer 19 connects
Connecting bolt 20, rear support 21, universal driving shaft 22, front support 23, O-ring 24, plane bearing 25, back-up ring 26.
Fig. 2 is the edge pillar schematic diagram of Fig. 1 embodiment transfer stators pair 15.
Stator 15-1 in figure, rotor 15-2, pin tooth 15-3.
Fig. 3 is the monoblock type schematic diagram of Fig. 1 embodiment transfer stators pair 15.
Stator 15-1 ' in figure, rotor 15-2 '.
Fig. 4 is 6 one mounting surfaces intentions of protecgulum in Fig. 1 embodiments.
Fig. 5 is the structural representation of another embodiment of the present invention.
Protecgulum 2-6 in figure, rear support 2-21, O-ring 2-24, back-up ring 2-26.
Fig. 6 is 6 one mounting surfaces intentions of protecgulum in Fig. 5 embodiments.
Fig. 7 is the structural representation of still further embodiment of the present invention.
Protecgulum 3-6 in figure, rear support 3-21, O-ring 3-24, back-up ring 3-26..
Embodiment one
A kind of axle valve flow distribution cycloid hydraulic motor of the present embodiment constitute substantially it is shown in Figure 1, with reference to above-mentioned Fig. 1 embodiments,
The present invention is carried out detailed further below.A kind of axle valve flow distribution cycloid hydraulic motor of the present embodiment has SAE A type standards
Φ 82.55 installs seam or installs seam close to size, and basic structure includes the body shell 7 with mounting flange face, is placed in body
The structure of output shaft 1 of the torque output in shell 7, and turn stator pair 15, match somebody with somebody using what connecting bolt 20 was connected with the body shell 7
Streaming system and the runner and bonnet 16 of fluid turnover motor inner chamber, form different cavitys, the body shell 7 and the phase of output shaft 1
The inner hole surface matched somebody with somebody has flow duct, and the output shaft 1 has the diameter of axle with chute matched with the flow duct of body shell 7, described
The front end of the close protecgulum 6 of output shaft 1 is provided with front support 23, and the endoporus surface rear end of the body shell 7 is provided with rear support 21, institute
Front support 23 is stated for full-complement cylinder roller bearing, the cylinder roller bearing is made up of cylindrical roller and support frame, described branch
Support by being heat-treated after mechanical grinding process, the front support 23 undertakes the primarily radially power on output shaft 1, the cylinder
The support frame of roller bearing is cylindrical in the inner hole surface of body shell 7, and the roller inscribed circle of the cylinder roller bearing is arranged on
On the diameter of axle of installation axle envelope 4 of output shaft 1, support frame as described above is resisted against the gear in protecgulum stepped hole by plane bearing 25
On circle 26, the rear support is supported on the diameter of axle with chute disc of output shaft 1, and described rear support 19 undertakes output shaft 1
On secondary radial load.
Described rear support 19 is needle bearing structure, or substitutes needle bearing structure using composite bearing.
When output shaft 1 is installed, first front support 23 is arranged in the diameter of axle hole of body shell 7, rear support 19 is arranged on body shell 7
Mounting hole in, then the front end axle envelope diameter of axle end of output shaft 1 is installed from the rear end of body shell 7, the output shaft 1 of same motor is torn open
Unload is also that equally it is taken out from the front end band rear end of body shell 7, it can be seen that need to pacify again after installing output shaft with conventional art
Fill a support or now tear a support open and take output shaft again, have very big benefit, it is possible to ensure the precision of part.
The body shell 7 has installs positioning spigot, and protecgulum 6 is provided with the seam of the body shell 7, and the protecgulum 6 is set
Rotary shaft sealing 4, one end of the protecgulum 6 is the step of protrusion, and the step disc carries out gap and coordinates fixed with body shell hole 7
Position, the step of the protecgulum 6 sets an annular groove, and annular groove installs O-ring seals, has the cylinder of part screw 5 on described protecgulum 6
Head mounting hole, has the socket cap mounting hole of part screw 5 in described body shell 7, the socket cap mounting hole of the screw 5 is by protecgulum
Mounting hole on 6 and in body shell 7 is collectively forming, and the protecgulum 6 is fixed together using screw 5 with body shell 7.Protecgulum of the invention
The unidirectional axial force of motor output shaft 1 is only subject to, bearing capacity can be improved by increasing the quantity of screw 5, and led to
The big radial load of output shaft 1 of motor is crossed by front support 23 and the collective effect of rear support 19, big radial load is discharged in horse
In the body shell 7 for reaching, and the seam set in the body shell 7 of motor is connected and unloads with fixing device so that the requirement of protecgulum 6 is significantly
Reduce, have axial direction so as to solve conventional art positioning spigot and be arranged on the radial load that motor should be positioned and formed on protecgulum
The sealing of power, also axle envelope, the machining accuracy for each mating surface is very harsh with the fastening requirements of screw 5, easily causes
Axle envelope oil leak, protecgulum loosen, the defect of motor reliability reduction.
Fig. 4 is 6 one mounting surfaces intentions of protecgulum in Fig. 1 embodiments, it can be seen that the positioning that protecgulum 6 is nested in body shell 7 is stopped
In mouth disc, there is the socket cap mounting hole of part screw 5 on described protecgulum 6, there is part screw 5 to justify in described body shell 7
Column cap mounting hole, the socket cap mounting hole of the screw 5 is collectively forming by the mounting hole on protecgulum 6 and in body shell 7, the protecgulum
6 are fixed together using screw 5 with body shell 7, and the ingehious design of protecgulum 6 ensure that the installation reliability of motor positioning spigot, local
The socket cap mounting hole of screw 5 is in order to ensure to set the former intensity of positioning spigot and Reliability Assurance in body shell 7.
Can be set in described body shell 7 with hydraulic fluid port identical check valve, check valve is by elastomer 9, valve ball 10, valve body
11st, sealing ring 12 is collectively constituted, and the valve body 11 is resisted against every one end of disk 14, every disk 14 set a passage cause valve body 11 with
Motor inner chamber is linked up.
As shown in Fig. 2 described turns stator secondary 15 for edge pillar turns stator pair, by stator 15-1, rotor 15-2, pin tooth
15-3 is collectively constituted.It is described to turn stator pair 15 and stator pair be turned using monoblock type as shown in Figure 3, by stator 15-1 ', turn
Sub- 15-2 ' compositions, while needing to be adapted to coupled part.
Embodiment two
A kind of axle valve flow distribution cycloid hydraulic motor of the present embodiment constitute substantially it is shown in Figure 5, with reference to above-mentioned Fig. 1 embodiments not
Together, the present invention is further carried out detailed further below.The protecgulum 2-6 is limited using back-up ring 2-26 is cylindrical with body shell endoporus
The protecgulum step positioning of position alternative embodiment one, the body shell outer end of hole sets an annular distance, and the annular distance is formed with protecgulum plane
One towards inner chamber cavity and sealing ring is installed, install O-ring seals carry out cavity sealing.
The rear support that the endoporus surface rear end of the body shell is set, the rear support is composite bearing.
Fig. 6 is 6 one mounting surfaces intentions of protecgulum in Fig. 5 embodiments, it can be seen that the positioning that protecgulum 6 is nested in body shell 7 is stopped
In mouth disc, the socket cap mounting hole of the screw 5 of protecgulum 6 is the semicircular opening structure of milling, and the ingehious design of protecgulum 6 ensure that
The installation reliability of motor positioning spigot.
Embodiment three
A kind of axle valve flow distribution cycloid hydraulic motor of the present embodiment constitute substantially it is shown in Figure 7, with reference to above-mentioned Fig. 5 embodiments,
The present invention is carried out again detailed further below.The output shaft rear end is set to step-like, described step disc and installs compound
Bearing, described composite bearing and step disc tight fit.
Three embodiments employ two check valves and are communicated with oil inlet and outlet, are conducive to protecting rotary shaft sealing；Such as using height
Pressure rotary shaft sealing, suitable operating mode can also save two check valves, one-way valve structures can be also arranged on the body shell at protecgulum
On.
It was verified that the axle valve flow distribution cycloid hydraulic motor of the present embodiment has lot of superiority, parts machining process essence
Degree is moderate, and the good manufacturability of assembling, the good manufacturability of maintenance, reliability is high, and compact conformation, can bear larger radial direction
Power, so as to improve the cost performance and applying working condition adaptability of product.
In addition to the implementation, the present invention can also have other embodiment.For example, being deformed using different front-cover structures
Deng.The technical scheme that all use equivalents or equivalent transformation are formed, all falls within the protection domain of application claims.
Claims (8)
1. a kind of axle valve flow distribution cycloid hydraulic motor, main to include the body shell with mounting flange face, is placed in the torsion in body shell
The output axle construction of square output, and stator is secondary using turning of being connected of connecting bolt with the body shell, enter with streaming system and fluid
Go into action up to the runner and bonnet of inner chamber；It is characterized in that：The inner hole surface that the body shell matches with output shaft has flow duct, institute
The front end that stating output shaft has the diameter of axle with chute matched with body shell flow duct, the output shaft sets front support, described
The endoporus surface rear end of body shell sets rear support, and the front support is full-complement cylinder roller bearing, the branch of the cylinder roller bearing
In the cylindrical inner hole surface installed in body shell of support, the roller inscribed circle of the cylinder roller bearing is arranged on the installation axle of output shaft
On the envelope diameter of axle, support frame as described above is resisted against on the back-up ring in protecgulum stepped hole by plane bearing, the rear support branch
Support is on the diameter of axle with chute disc of output shaft.
2. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 1, it is characterised in that：The rear support is needle roller
Bearing.
3. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 2, it is characterised in that：The rear support is replaced with
Composite shaft.
4. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 3, it is characterised in that：The body shell has to be installed
Positioning spigot disc, is provided with protecgulum in the seam of the body shell, the protecgulum is provided with rotary shaft sealing, one end of the protecgulum
It is the step of protrusion, the step disc carries out gap and coordinates positioning with body shell hole.
5. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 4, it is characterised in that：The protecgulum step is set
One annular groove, annular groove installs O-ring seals, has part screw socket cap mounting hole on described protecgulum, has in described body shell
There is part screw socket cap mounting hole, the socket cap mounting hole of the screw is by the common shape of mounting hole on protecgulum and in body shell
Into the protecgulum is fixed together using screw with body shell.
6. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 5, it is characterised in that：The protecgulum uses back-up ring
Cylindrical to carry out spacing replacement protecgulum step positioning with body shell endoporus, the body shell outer end of hole sets an annular distance, the annular distance with it is preceding
Lid plane formed one towards inner chamber cavity and sealing ring is installed, install O-ring seals carry out cavity sealing.
7. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 6, it is characterised in that：The output shaft rear end sets
It is set to step-like, described step disc and composite bearing, described composite bearing and step disc tight fit is installed, replaces body shell
Endoporus surface rear end set rear support.
8. a kind of axle valve flow distribution cycloid hydraulic motor according to claim 7, it is characterised in that：In the body shell set with
Hydraulic fluid port identical check valve, the check valve is made up of elastomer, valve ball, valve body, sealing ring, and the valve body is resisted against every disk
One end, it is described to cause that valve body is linked up with motor inner chamber every disk one passage of setting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201729.0A CN106704089A (en) | 2016-12-23 | 2016-12-23 | Flow distribution cycloid hydraulic motor for axial flow valve |
| PCT/CN2017/115327 WO2018108039A1 (en) | 2016-12-13 | 2017-12-08 | Cycloid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201729.0A CN106704089A (en) | 2016-12-23 | 2016-12-23 | Flow distribution cycloid hydraulic motor for axial flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704089A true CN106704089A (en) | 2017-05-24 |
Family
ID=58895732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611201729.0A Pending CN106704089A (en) | 2016-12-13 | 2016-12-23 | Flow distribution cycloid hydraulic motor for axial flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704089A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339192A (en) * | 2017-09-02 | 2017-11-10 | 镇江大力液压马达股份有限公司 | A kind of big radial load support shaft distributing cycloid hydraulic motor |
| CN107605656A (en) * | 2017-10-01 | 2018-01-19 | 镇江大力液压马达股份有限公司 | A kind of large-diameter axle distributing cycloid hydraulic motor |
| WO2018108039A1 (en) * | 2016-12-13 | 2018-06-21 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor |
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| US4432710A (en) * | 1979-03-20 | 1984-02-21 | Danfoss A/S | Rotary type machine with check valves for relieving internal pressures |
| CN201121555Y (en) * | 2007-11-26 | 2008-09-24 | 镇江大力液压马达有限责任公司 | Dual-spindle output shaft valve flow distribution cycloid hydraulic motor |
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| CN103726983A (en) * | 2014-01-09 | 2014-04-16 | 镇江大力液压马达股份有限公司 | High-speed flow distribution cycloid hydraulic motor |
| 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 |
| CN204327396U (en) * | 2012-10-28 | 2015-05-13 | 镇江大力液压马达股份有限公司 | Compact axial flow distribution cycloid hydraulic motor with short shell |
| CN206571619U (en) * | 2016-12-23 | 2017-10-20 | 镇江大力液压马达股份有限公司 | A kind of axle valve flow distribution cycloid hydraulic motor |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4432710A (en) * | 1979-03-20 | 1984-02-21 | Danfoss A/S | Rotary type machine with check valves for relieving internal pressures |
| CN201121555Y (en) * | 2007-11-26 | 2008-09-24 | 镇江大力液压马达有限责任公司 | Dual-spindle output shaft valve flow distribution cycloid hydraulic motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018108039A1 (en) * | 2016-12-13 | 2018-06-21 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor |
| CN107339192A (en) * | 2017-09-02 | 2017-11-10 | 镇江大力液压马达股份有限公司 | A kind of big radial load support shaft distributing cycloid hydraulic motor |
| CN107605656A (en) * | 2017-10-01 | 2018-01-19 | 镇江大力液压马达股份有限公司 | A kind of large-diameter axle distributing cycloid hydraulic motor |
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Application publication date: 20170524 |
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