CN201090367Y - Assembled rotor and stator cycloid hydraulic motor - Google Patents

Assembled rotor and stator cycloid hydraulic motor Download PDF

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Publication number
CN201090367Y
CN201090367Y CNU2007200465146U CN200720046514U CN201090367Y CN 201090367 Y CN201090367 Y CN 201090367Y CN U2007200465146 U CNU2007200465146 U CN U2007200465146U CN 200720046514 U CN200720046514 U CN 200720046514U CN 201090367 Y CN201090367 Y CN 201090367Y
Authority
CN
China
Prior art keywords
stator
cycloid
hydraulic motor
rotor
hydraulic pressure
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.)
Expired - Fee Related
Application number
CNU2007200465146U
Other languages
Chinese (zh)
Inventor
王志生
张智敏
翁爱光
眭凡
刘云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHENJIANG DALI HYDRAULIC COMPONENT CO Ltd
Original Assignee
ZHENJIANG DALI HYDRAULIC COMPONENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHENJIANG DALI HYDRAULIC COMPONENT CO Ltd filed Critical ZHENJIANG DALI HYDRAULIC COMPONENT CO Ltd
Priority to CNU2007200465146U priority Critical patent/CN201090367Y/en
Application granted granted Critical
Publication of CN201090367Y publication Critical patent/CN201090367Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a hydraulic pressure motor with combined rotor and stator cycloid, belonging to a technical field of hydraulic pressure driving part, the motor comprises a hydraulic pressure oil accommodation cavity that is formed by connecting a housing, a stator and a rear cover fixedly, one end of the output shaft that is extended outwards is supported in the housing, the inner end of the output shaft is connected with one end of the rotor by linkage shaft, the rotor and the pin teeth embedded on the stator form a cycloid gear pair. The improvement of the utility model is that: the stator is combined by at least two split parts that are arranged axially, an annular sealing part is arranged between the adjacent split parts, integral pin teeth are embedded in the combined stator. By adopting the structure, as the stator is split-processed, the integrated thickness is larger so that the difficulty that pin tooth hole for embedding pin teeth is bored is reduced obviously, therefore workmanship is improved obviously. The utility model solves the processing difficulty reasonably of medium or above large-discharge cycloid hydraulic pressure motor, thereby assisting to ensure synthetic performance of hydraulic pressure motor.

Description

Made up is changeed the stator cycloid hydraulic motor
Technical field
The utility model relates to a kind of hydraulic pressure of realizing can be to the device of mechanical energy conversion, and the cycloid hydraulic motor that especially has the cycloid pin gear group of pin tooth belongs to hydraulic transmission part technical field.
Background technique
Cycloid hydraulic motor is a hydraulic pressure execution device of realizing liquid-function conversion, owing to have advantages such as volume is little, specific power density is big, efficient is high, speed range is wide, has therefore obtained using widely.The core of this type of device transformation of energy is to change the stator pair, has the structure of changeing the secondary existing unitary stator of stator now, and the structure of pin tooth combined-stator is also arranged.
The knockdown commentaries on classics stator of pin tooth auxiliary structure only is suitable for the little displacement hydraulic motor that parameter type of the same race changes stator, because the pin perforation that big displacement hydraulic motor needs is longer, so processing difficulties of stator cavity body opening, especially for the medium discharge capacity cycloid hydraulic motor of compact structure, the diameter of its pin tooth is less, and is all the more so.For example, application number is 200620070542.7 and 200620170889.9 disclosed cycloid pin gear groups with pin tooth, after stator thickness is greater than 62mm, the bore hole difficulty of processing of stator pin perforation improves greatly, need the littler amount of feed and increase the feed number of times, the fraising number of times is showed increased also, and the up-to-standard rate of the part stator of other displacement motor relatively will be hanged down about 5%, and can have influence on the combination property of motor.
The model utility content
The purpose of this utility model is: by the architecture advances to existing cycloid hydraulic motor, proposing a kind of technology capability made up good, that can satisfy the combination property requirement changes the stator cycloid hydraulic motor, thereby solves the processing difficult problem that existing discharge capacity cycloid hydraulic motor greatly medium and above type is run into.
In order to achieve the above object, made up of the present utility model is changeed the stator cycloid hydraulic motor and is comprised by body shell, stator and bonnet and fixedly connected the hydraulic oil reservoir body that constitutes, support the overhanging output shaft of an end in the described body shell, the inner of described output shaft is in transmission connection by an end of couple axle and rotor, described rotor constitutes cycloid pin gear pair with the pin tooth that is set on the stator, its improvements are, described stator is assembled by at least two split parts of arranging vertically, between the described adjacent split part lip ring is housed, studs with the integral pin tooth in the assembly unit stator.
After adopting structure of the present utility model, because stator split processing, even therefore integral thickness big (for example greater than 62mm), the pin perforation bore hole difficulty that is used for insert pin tooth significantly reduces, even broaching processing, difficulty significantly reduce too, manufacturability be improved significantly, thereby rationally solved the processing difficult problem of the big discharge capacity cycloid hydraulic motor of medium and above type, helped to guarantee the combination property of oil hydraulic motor.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the structural representation of embodiment's high-speed distributing cycloid hydraulic motor of the utility model.Each part and label corresponding relation are among the figure: bonnet 1, every dish 2, flow dunnage 3, stator 4, rotor 5, dividing plate 6, bolt 7, housing 8, couple axle 9, output shaft 10, thrust-bearing 11, end ring 12, woodruff key 13, dust ring 14, needle bearing 15, axle envelope 16, hydraulic fluid port lid 17, needle bearing 18, seal ring 19, seal ring 20, pin tooth 21, thrust plate 22, fixing ring 23, compensation pin 24.
Fig. 2 is the local enlarged diagram of cycloid pin gear pair among Fig. 1.
Embodiment
Embodiment one
The distributing cycloid hydraulic motor of present embodiment as shown in Figure 1, the front end of housing 8 supports output shaft 10 by needle bearing 15 and plain thrust bearing 11, the inner of this output shaft is by the external splines engagement of inner spline gear and disjunctor couple axle 9 front ends, the middle part of this couple axle is shaped on external splines, the rear end is the necking down shaft part, the internal spline engagement of middle part external splines and rotor 5, the epicycloid flank profil of this rotor 5 meshes with cycloid pin tooth in the stator 4 that is fixed on housing 8.Isolated by dividing plate 6 between housing 8 and the stator 4, stator 4 rear ends are connected and are shaped on the flow dunnage 3 of the secondary engagement of cycloid cavity volume connected pore channel and every dish 2 and bonnet 1, constitute frame set thus.In dish 2 movable thrust plate 22 is housed, the necking down axle head head of the center hole of this thrust plate 22 and disjunctor couple axle 9 constitutes the eccentric rotary pair.
The concrete structure of cycloid pin gear pair as shown in Figure 2, stator 4 adopts two split parts assembled, is set in pin tooth 21 in the assembly unit stator for whole, the rotor 5 that is engaged with is also for whole.The involutory end face of one of assembly unit stator two adjacent split parts has circular groove, and wherein embedded sealing ring 20, realizes required sealing.O RunddichtringO or rectangular seal can be adopted in the cross section of Sealing, use rectangle can better save the radial space layout.Assembly unit stator two adjacent split part endoporus apposition position edges are shaped on chamfering (preferably circular arc chamfering), help avoiding the integral pin tooth to be pulled in the assembling motion like this.
In the above structure,, therefore can realize the motion and the conformity of changeing the stator secondary motion of thrust plate 22, thereby can realize the high speed flow because output couple axle and flow couple axle are integrated into same disjunctor couple axle 9.
Be tightly connected by wear-resisting, resistant to elevated temperatures fixing ring 23 between the motor thrust plate 22 of present embodiment and the bonnet 1, make the thrust plate 22 inside and outside cavity volumes that form 2 sealings, thereby high low pressure fluid is kept apart.During work, stator 4, rotor 5, pin tooth 21 form airtight engagement cavity volume, disjunctor couple axle 9 is delivered to thrust plate 22 with the cycloid motion of cycloid rotor, make the high low pressure fluid can be by the hydraulic oil duct on the flow dunnage 3, promote the conversion of rotor cavity volume, simultaneously, the rotation of rotor drives the rotation of thrust plate 22 again, thereby under the promotion of pressure oil, continue output torque, drive output shaft 10 by couple axle 9 and rotate, and constantly shift, the circulation that formation goes round and begins again keeps output shaft 10 persistent movements to go down.Detection shows, its energy conversion efficiency height, and the motion of output is steady.
Facts have proved that even the oil hydraulic motor stator total thickness of present embodiment also has favorable manufacturability greater than 62mm, after making, running is steady, good sealing effect.
In addition to the implementation, the utility model also has other mode of executions.As the flow mode of motor is an axle valve flow, plane flow mode, also can be pump structure, and it changes stator auxiliary structure and mainly is but the pin toothing that is not limited to 6,7 teeth.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 (6)

1. a made up is changeed the stator cycloid hydraulic motor, comprise by body shell, stator and bonnet and fixedly connected the hydraulic oil reservoir body that constitutes, support the overhanging output shaft of an end in the described body shell, the inner of described output shaft is in transmission connection by an end of couple axle and rotor, described rotor constitutes cycloid pin gear pair with the pin tooth that is set on the stator, it is characterized in that: described stator is assembled by at least two split parts of arranging vertically, between the described adjacent split part lip ring is housed, studs with the integral pin tooth in the assembly unit stator.
2. made up according to claim 1 is changeed the stator cycloid hydraulic motor, and it is characterized in that: the involutory end face of one of described two adjacent split parts has circular groove, wherein embedded sealing ring.
3. made up according to claim 1 is changeed the stator cycloid hydraulic motor, it is characterized in that: the inner of described output shaft is by the external splines engagement of inner spline gear and disjunctor couple axle front end, the middle part of described couple axle is shaped on external splines, the rear end is the necking down shaft part, the internal spline engagement of described middle part external splines and rotor.
4. made up according to claim 2 is changeed the stator cycloid hydraulic motor, and it is characterized in that: described two adjacent split part endoporus apposition position edges are shaped on chamfering.
5. made up according to claim 2 is changeed the stator cycloid hydraulic motor, and it is characterized in that: the seal ring of described circular groove setting-in is a rectangular seal.
6. change the stator cycloid hydraulic motor according to the arbitrary described made up of claim 1 to 5, it is characterized in that: described rotor and pin tooth are overall structure.
CNU2007200465146U 2007-10-15 2007-10-15 Assembled rotor and stator cycloid hydraulic motor Expired - Fee Related CN201090367Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200465146U CN201090367Y (en) 2007-10-15 2007-10-15 Assembled rotor and stator cycloid hydraulic motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200465146U CN201090367Y (en) 2007-10-15 2007-10-15 Assembled rotor and stator cycloid hydraulic motor

Publications (1)

Publication Number Publication Date
CN201090367Y true CN201090367Y (en) 2008-07-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200465146U Expired - Fee Related CN201090367Y (en) 2007-10-15 2007-10-15 Assembled rotor and stator cycloid hydraulic motor

Country Status (1)

Country Link
CN (1) CN201090367Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103629043A (en) * 2013-12-14 2014-03-12 镇江大力液压马达股份有限公司 Large-displacement embedded column type cycloid hydraulic motor with rotor and stator pair
CN103899534A (en) * 2012-12-24 2014-07-02 株式会社爱德克斯 Internal rotor-type fluid machine
CN106762385A (en) * 2016-12-20 2017-05-31 镇江大力液压马达股份有限公司 A kind of high-speed distributing cycloid hydraulic motor and flow support board fabrication method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899534A (en) * 2012-12-24 2014-07-02 株式会社爱德克斯 Internal rotor-type fluid machine
US9759215B2 (en) 2012-12-24 2017-09-12 Advics Co., Ltd. Internal rotor-type fluid machine
CN103629043A (en) * 2013-12-14 2014-03-12 镇江大力液压马达股份有限公司 Large-displacement embedded column type cycloid hydraulic motor with rotor and stator pair
CN106762385A (en) * 2016-12-20 2017-05-31 镇江大力液压马达股份有限公司 A kind of high-speed distributing cycloid hydraulic motor and flow support board fabrication method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080723

Termination date: 20151015

EXPY Termination of patent right or utility model