CN201106522Y - Axial transmission collocation axis valve flow-matching cycloid hydraulic motor - Google Patents
Axial transmission collocation axis valve flow-matching cycloid hydraulic motor Download PDFInfo
- Publication number
- CN201106522Y CN201106522Y CNU2007200463206U CN200720046320U CN201106522Y CN 201106522 Y CN201106522 Y CN 201106522Y CN U2007200463206 U CNU2007200463206 U CN U2007200463206U CN 200720046320 U CN200720046320 U CN 200720046320U CN 201106522 Y CN201106522 Y CN 201106522Y
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- body shell
- axis
- hydraulic motor
- valve
- output shaft
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Abstract
The utility model relates to an axis valve flow distributing cycloid hydraulic motor allocating axially in a drive way, belonging to the hydraulic transmission technical field. The motor is mainly composed of a body shell, a rear cover, a flow distributing system and a torque moment transmitting system. A liquid inlet and a reflux inlet are made on the body shell. One end of the body shell is provided with a cycloid gear pair, the middle part of the body shell is provided with the flow distributing mechanism, and the other end of the body shell supports an output axis. A rotatable shell axis valve is installed in an inner hole of the body shell. The output axis is meshed and connected with a rotor of a cycloid needle wheel pair respectively via respective female splines and outer gears in both ends of a linkage axis. The linkage axis passes through an inner hole of the axis valve. An axial connecting pin is fixedly inserted on the end surface of the adjacent output axes of the axis valve, and a clamp slot which arranges an extending end of the connecting pin is arranged on the outer cylindrical surface at the corresponding position of the output axis. The hydraulic motor not only has compact structure and convenient assembly, but also can bear larger radial force because the radial force of the output axis is not directly transmitted to the axis valve, thereby making for transmitting larger torque moment.
Description
Technical field
The utility model relates to a kind of oil hydraulic motor, particularly has the cycloid hydraulic motor of integrated type internal and external cycloids gear pair, belongs to hydraulic transmission technology field.
Background technique
Cycloid hydraulic motor is to realize that hydraulic pressure can convert the hydraulic pressure execution device commonly used of function to.This type of device basic structure is mainly to be made of body shell, bonnet, flow system and moment of torsion delivery system.Be shaped on liquid entering hole and refluxing opening on general body shell or the bonnet.One end of body shell is equipped with the cycloidal-pin wheel pair, and flow-distribution mechanism is settled at the middle part.Flow-distribution mechanism has two kinds usually, is positioned at the valve flow that is near the body shell, and what be positioned at close bonnet then is the plane flow.The other end of body shell supports output shaft.The internal spline that passes through respectively between the rotor of output shaft and cycloidal-pin wheel pair separately connects with the external gear engagement at couple axle two ends.
The patent No. is the typical structure of the disclosed a kind of valve flow oil hydraulic motor of the Chinese patent of CN02217895.3, the axle valve that rotating output shaft extends is housed in the body shell endoporus wherein, couple axle passes wherein part axle valve, and the force part of transmitting torque is at axle valve place.The axle valve and the output shaft of this type of oil hydraulic motor adopt the incorporate structure that is rigidly connected, and radial bearing has been installed, thereby can be driven, and realize the switching of flow passage.Yet its overall structure is bigger, has the pin tooth, and not only structure is compact inadequately to also have this linkage structure, and the accuracy of manufacturing requirement is high, is difficult to bear big radial force, has under the operating mode of radial force, is unfavorable for the moment of torsion output of motor.
The model utility content
The purpose of this utility model is: by the architecture advances to the medium discharge capacity of needleless tooth integrated type internal and external cycloids gear pair (as the discharge capacity 50-400) cycloid hydraulic motor that has a valve distributing construction at present, keeping under the constant prerequisite of overall dimensions (for example the external diameter of its stator has only 85mm), a kind of axle valve distributing cycloid hydraulic motor of axial transmission configuration is proposed, thereby can bear big radial force, help improving the transmission performance of oil hydraulic motor.
In order to achieve the above object, the axle valve distributing cycloid hydraulic motor of axial transmission configuration of the present utility model mainly is made of the shell that comprises body shell and bonnet, flow-distribution mechanism, torque-transmitting mechanisms.Be shaped on liquid entering hole and refluxing opening on the described shell.One end of described body shell is equipped with the cycloid tooth wheel set, and the other end supports output shaft, and rotating shell-like axle valve is housed in the endoporus of described body shell, with the runner formation flow-distribution mechanism in the body shell.The internal spline that passes through respectively between the rotor of output shaft and cycloid tooth wheel set separately connects with the external gear engagement at couple axle two ends, constitutes torque-transmitting mechanisms.Its improvements are: described couple axle passes the whole endoporus of a valve, fixedly assigns axial connecting pin on the end face of the contiguous output shaft of described axle valve, has the draw-in groove of settling the connecting pin external part on the external cylindrical surface of output shaft corresponding position.
Like this, realized that with connecting pin axial arranged the axle valve is connected with free-standing between the output shaft.This improves not only compact structure, and is easy to assembly, and because the radial force that output shaft may bear is not directly delivered to a valve, therefore can bear bigger radial force, helps transmitting bigger moment of torsion.
The bearings that it is output shaft by a pair of arrangement arranged side by side that the utility model further improves is in the body shell, and described bearing should be selected deep groove ball bearing for use.During installation, two bearings adopts oppositely mode back-to-back, can bear bigger radial force, also can strengthen the ability of bearing axial force simultaneously.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is an embodiment's of the utility model a structural representation.
Part name among the figure with corresponding label is: protecgulum 1, and back-up ring 2, bearing 3, connecting pin 4, hydraulic fluid port 5 is every dish 6, stator 7, rotor 8, bonnet 9, pad 10, plug screw 11, O type circle 12, couple axle 13, axle valve 14, body shell 15, seal ring 16, screw 17, axle envelope 18, output shaft 19.
Fig. 2 be Fig. 1 embodiment axis valve with output shaft be connected the structure for amplifying schematic representation.
Embodiment
Embodiment one
The axle valve distributing cycloid hydraulic motor of the axial transmission configuration of present embodiment, as shown in Figure 1, protecgulum 1, body shell 15, every dish 6, stator 7, the bonnet 9 formation shell that is mutually permanently connected.Be shaped on liquid entering hole and refluxing opening on the body shell 15, one end is equipped with the integrated type internal and external cycloids gear pair of being made up of stator 7 and rotor 8 wherein, the flow-distribution mechanism that rotatable shell-like axle valve 14 constitutes is housed in body shell 15 endoporus, and the bearing 3 that the other end is installed by a pair of reverse mode back-to-back supports output shafts 19.The internal spline that passes through respectively between the rotor 8 of output shaft 19 and integrated type internal and external cycloids gear pair separately connects with the external gear engagement at couple axle 13 two ends, constitutes torque-transmitting mechanisms.This couple axle passes the whole endoporus of a valve 14, and transmitting torque stressed fully on output shaft born its radial force by bearing.
As shown in Figure 2, have a positioning pin hole on the end face of the contiguous output shafts 19 of axle valve 14, pin-and-hole fixedly is assigned axial connecting pin 4, has the extending axially of arrangement connecting pin 4 external parts, radial opening locating groove on the external cylindrical surface of output shaft 19 corresponding positions.The external part of connecting pin 4 is stuck in this locating groove, constitutes non-rigid connection, so the radial force that output shaft 19 bears only acts on the bearing, can not pass to a valve 14, thereby help improving the volumetric efficiency of oil hydraulic motor and prolong its working life.
In addition, in the present embodiment, stator 7 with after dish 6 and bonnet 9 are fixing jointly by bolt, formed motor integral body.12 uniform cannelures and two circular grooves have been processed on the pintle valve 14, two circular grooves match with the flow duct of body shell and communicate respectively with into and out of hydraulic fluid port, article 12, cannelure is connected with one of two circular grooves, and corresponding one by one the communicating in engagement chamber of seven flow ducts in the body shell and commentaries on classics stator pair, by 12 cannelures and two circular groove mating reactions, be embodied as changes the secondary flow of stator to pintle valve 14 in movement process.In other words, seven ducts and seven flow ducts of the high low pressure fluid that has on the body shell, 12 cannelures that the pintle valve is alternate and respectively with two circular grooves that communicate into and out of hydraulic fluid port, the engagement chamber of integrated type internal and external cycloids gear pair forms the flow function that keeps the motor continuous running jointly in addition.
During work, along the direction of rotor revolution, the front side tooth cavity volume of rotor and stator line of centers diminishes, and constitutes oil-discharging cavity; It is big that its rear side volume becomes, and constitutes oil suction chamber.When line of centers passed through two tooth roots of rotor, oil-feed finished, and maximum tooth cavity occurs.When line of centers passed through two tooth tops of rotor, oil extraction finished, and minimum tooth cavity occurs.When rotor rotates continuously, be to have showed flow clocklike, its line of centers front side tooth cavity is communicated with oil drain passage, and rear side communicate with oil input channel.
Facts have proved, the axle valve distributing cycloid hydraulic motor parts machining process moderate accuracy of the axial transmission configuration of present embodiment, the good manufacturability of assembling has high reliability.Compare with similar cycloid hydraulic motor in the past, can enlarge application area, have under the operating mode of radial force, can reduce the extra feel trim actuator of client, and the moment of torsion of transmission is big, rotation has low-speed stability.
In addition to the implementation, the utility model can also have other mode of executions.As adopt a bearing, hydraulic fluid port to be placed on the bonnet of motor or the like.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. the axle valve distributing cycloid hydraulic motor of an axial transmission configuration mainly is made of the shell that comprises body shell and bonnet, flow-distribution mechanism and torque-transmitting mechanisms; Be shaped on liquid entering hole and refluxing opening on the described shell, an end of described body shell is equipped with the cycloid tooth wheel set, and the other end supports output shaft; Rotating shell-like axle valve is housed, with the runner formation flow-distribution mechanism in the body shell in the endoporus of described body shell; The internal spline that passes through respectively between the rotor of described output shaft and cycloid tooth wheel set separately connects with the external gear engagement at couple axle two ends, constitutes torque-transmitting mechanisms; It is characterized in that: described couple axle passes the whole endoporus of a valve, fixedly assigns axial connecting pin on the end face of the contiguous output shaft of described axle valve, has the draw-in groove of settling the connecting pin external part on the external cylindrical surface of output shaft corresponding position.
2. according to the axle valve distributing cycloid hydraulic motor of the described axial transmission configuration of claim 1, it is characterized in that: have on the external cylindrical surface of described output shaft extend axially, the locating groove of radial opening, the external part of described connecting pin is stuck in the described locating groove, constitutes non-rigid connection.
3. according to the axle valve distributing cycloid hydraulic motor of the described axial transmission configuration of claim 2, it is characterized in that: the bearings of described output shaft by a pair of arrangement arranged side by side is in the body shell.
4. according to the axle valve distributing cycloid hydraulic motor of the described axial transmission configuration of claim 3, it is characterized in that: described cycloid tooth wheel set is an integrated type internal and external cycloids gear pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200463206U CN201106522Y (en) | 2007-09-24 | 2007-09-24 | Axial transmission collocation axis valve flow-matching cycloid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200463206U CN201106522Y (en) | 2007-09-24 | 2007-09-24 | Axial transmission collocation axis valve flow-matching cycloid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106522Y true CN201106522Y (en) | 2008-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200463206U Expired - Fee Related CN201106522Y (en) | 2007-09-24 | 2007-09-24 | Axial transmission collocation axis valve flow-matching cycloid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106522Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797622A (en) * | 2012-09-07 | 2012-11-28 | 镇江大力液压马达有限责任公司 | Cycloid hydraulic motor of shaft-valve flow-distribution type |
| CN102828895A (en) * | 2012-09-07 | 2012-12-19 | 镇江大力液压马达有限责任公司 | Radial supporting shaft-valve flow-distributing hydraulic orbit motor |
| CN106837681A (en) * | 2017-03-20 | 2017-06-13 | 镇江大力液压马达股份有限公司 | A kind of body shell positions radial support axle valve flow distribution cycloid hydraulic motor |
| CN107061139A (en) * | 2016-12-13 | 2017-08-18 | 镇江大力液压马达股份有限公司 | A kind of cycloid hydraulic motor |
-
2007
- 2007-09-24 CN CNU2007200463206U patent/CN201106522Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797622A (en) * | 2012-09-07 | 2012-11-28 | 镇江大力液压马达有限责任公司 | Cycloid hydraulic motor of shaft-valve flow-distribution type |
| CN102828895A (en) * | 2012-09-07 | 2012-12-19 | 镇江大力液压马达有限责任公司 | Radial supporting shaft-valve flow-distributing hydraulic orbit motor |
| CN107061139A (en) * | 2016-12-13 | 2017-08-18 | 镇江大力液压马达股份有限公司 | A kind of cycloid hydraulic motor |
| CN106837681A (en) * | 2017-03-20 | 2017-06-13 | 镇江大力液压马达股份有限公司 | A kind of body shell positions radial support axle valve flow distribution cycloid hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang Dadi Hydraulic Liability Co., Ltd. Assignor: Zhenjiang Dali Hydraulic Component Co., Ltd. Contract fulfillment period: 2008.8.27 to 2017.9.24 Contract record no.: 2009320000603 Denomination of utility model: Axial transmission collocation axis valve flow-matching cycloid hydraulic motor Granted publication date: 20080827 License type: exclusive license Record date: 20090417 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.27 TO 2017.9.24; CHANGE OF CONTRACT Name of requester: ZHENJIANG DADI HYDRAULIC PRESSURE CO.,LTD. Effective date: 20090417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |