CN203685464U - Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body - Google Patents

Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body Download PDF

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Publication number
CN203685464U
CN203685464U CN201420003666.8U CN201420003666U CN203685464U CN 203685464 U CN203685464 U CN 203685464U CN 201420003666 U CN201420003666 U CN 201420003666U CN 203685464 U CN203685464 U CN 203685464U
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CN
China
Prior art keywords
hydraulic motor
rotor
cycloid hydraulic
brevicone
compensating plate
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.)
Withdrawn - After Issue
Application number
CN201420003666.8U
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Chinese (zh)
Inventor
王志生
张智敏
盛伟
翁爱光
盛玉川
楼峰
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ZHENJIANG DALI HYDRAULIC MOTOR CO Ltd
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ZHENJIANG DALI HYDRAULIC MOTOR CO Ltd
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Priority to CN201420003666.8U priority Critical patent/CN203685464U/en
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Abstract

The utility model relates to an axially compact high-speed flow distribution cycloid hydraulic motor with a short shell body, and belongs to the technical field of hydraulic transmission. The cycloid hydraulic motor disclosed by the utility model comprises the shell body with a liquid inlet and a backflow opening, and a flow distribution mechanism formed by a rotor of a cycloid pin wheel pair and a composite hydraulic flow channel of a flow distribution support plate; the rotor is in contact with a compensation plate; the two surfaces of the compensation plate are respectively of a slightly concave surface structure or convex surface structure; a front bearing of an output shaft is supported by a full complement roller bearing; the axial length of the shell body is very compact. The axial size of the motor disclosed by the utility model is compact to bear high pressure, so that the motor can bear large radial force.

Description

Brevicone axon is to compact type high-speed distributing cycloid hydraulic motor
Technical field
The utility model relates to a kind ofly realizes the cycloid hydraulic motor of hydraulic energy to mechanical energy conversion by cycloidal pin wheels engagement pair, and the very short brevicone axon of especially a kind of housing, to compact type high-speed distributing cycloid hydraulic motor, belongs to hydraulic transmission technology field.
Background technique
Cycloid hydraulic motor is conventional fluid pressure drive device, is also the conventional hydraulic pressure execution device of realizing hydraulic energy and convert to mechanical energy.Cycloid hydraulic motor has the advantages such as volume is little, specific power density is large, efficiency is high, speed range is wide, thereby is widely applied.
The basic structure of such device is on body shell or bonnet, to be shaped with liquid entering hole and refluxing opening, cycloidal pinion engaged pair and flow-distribution mechanism are equipped with in one end, flow-distribution mechanism can be placed on before or after cycloidal pinion engaged pair, be generally axle valve flow in front (body shell one side), be plane flow in rear (bonnet one side), the other end is equipped with output shaft.The rotor of cycloidal pinion engaged pair engages with the external gear of couple axle one end by internal spline, and the other end of couple axle is connected with output shaft transmission.When work, flow-distribution mechanism makes liquid entering hole engage chamber connection with the expansion of cycloidal pin wheel set, and the contraction chamber of cycloidal pin wheel set is communicated with refluxing opening.As a result, pressured fluid, from liquid entering hole enters body shell or bonnet, enters the expansion engagement chamber that cycloidal pinion engaged pair forms, and its volume is constantly expanded, and in the contraction engagement chamber that cycloidal pinion engaged pair forms simultaneously, liquid refluxes from refluxing opening; In this process, the rotor of cycloidal pinion engaged pair is expanded the pressure difference that engages chamber with contraction in engagement chamber and orders about rotation, and this is rotated by couple axle and is delivered to output shaft output, thereby realizes the conversion of hydraulic energy to mechanical energy.Meanwhile, flow-distribution mechanism is also by couple axle driven rotary, and the continuous switching connected state going round and beginning again, is continued transfer process.Like this, the output torque that motor just can be continuous, can say that cycloidal pinion engaged pair and flow-distribution mechanism are the cores of oil hydraulic motor.
According to the applicant understood, the runner design form of flow-distribution mechanism has multiple, is mainly divided into two kinds of flow modes of axle flow and plane flow, in hydraulic pressure handbook in early days, all has embodiment.Separately there is a kind of high-speed distributing cycloid hydraulic motor of similar plane distributing construction motor, flow system is relevant with rotor end-face duct, the thrust plate of motor is to integrate with rotor, or at the extending end of the couple axle coordinating with its internal spline, as shown in two file US Patent No. 3601513, US4717320, wherein the latter becomes one for thrust plate and rotor.After the high-speed distributing cycloid hydraulic motor of prior art, can not make under high pressure axially better clearance compensation function of motor every dish, what motor output shaft spring bearing adopted is the needle bearing that bearing radial force is little, and be widely used at present wheel flange, need to there is large radial support ability, to support the weight of overall machine, as type needle bearings such as B-3016 but due to its structural limitations, the ability that makes motor bear large radial force can not get fine improvement, under a lot of severe duties, does not reach user's requirement.
Summary of the invention
The purpose of this utility model is: the problem existing for above prior art, propose a kind of compact structure and can bear the high-speed distributing cycloid hydraulic motor of high pressure, large radial force, and reduce the overall applicability cost of motor, the manufacturability of processing, assembling that improves oil hydraulic motor is all good, promotes its cost performance.
In order to achieve the above object, claimant is by the structural analysis to cycloid hydraulic motor, especially there is the research of high speed distributing construction cycloidal pin wheel set oil hydraulic motor integral structure layout, research is suitable for that flow system is combined with rotor duct and the rotor that brings bears the scarce capacity of high pressure, and find out the weak link of its bearing radial force, make under the shorter prerequisite of similar wheel mounting flange axial dimension guarantor, proposing following the technical solution of the utility model is: brevicone axon is to compact type high-speed distributing cycloid hydraulic motor, comprise the housing that is shaped with liquid entering hole and refluxing opening, be equipped with by stator one end of described housing, the cycloidal pin wheel set that rotor and pin tooth form and the flow-distribution mechanism being formed by the complex liquid baric flow road of flow dunnage and the compound duct of rotor, the delivery outlet of its other end is supported with the output shaft from stretching out in housing, the rotor of described cycloidal pin wheel set engages with the external gear of couple axle one end by internal spline, and the other end of described couple axle is connected with output shaft transmission, its improvements are: described in there is the rotor in compound duct the other end contact with compensating plate, the one side that described compensating plate is combined with rotor is concave surface, and the another side contacting with bonnet is convex surface, the planeness of two faces of described compensating plate is rendered as slight concave structure or convex configuration.
Above technological scheme is further improved: described output shaft rear and front end is all supported with front and back bearings, the shaft seal that housing bore and output shaft is rotated to sealing is installed between described fore bearing and rear bearing, described fore bearing adopts and completely fills roller bearing, described rear bearing adopts needle bearing, and described needle bearing is positioned at the front end of an oil duct.
Above technological scheme is further improved: described compensating plate has unidirectional valve opening and runner hole, described compensating plate another side contacts with bonnet one side, on described bonnet, being shaped with different stepped ring forging faces communicates with unidirectional valve opening, the runner hole of compensating plate, each stepped ring forging face is conducive to coordinate with compensating plate in motor operation, makes the work that rotor under high pressure can be stable.
Compared with the gerotor motor of prior art, after above-mentioned improvement structure of the present utility model, motor drive shaft is to compact dimensions and can bear higher pressure and more reliable and stable work, can also make motor can bear large radial force, and after improving, Motor Components is processed, assembles all very convenient, can expand the application area of motor, its structure is conducive to more operating mode application and reduces the extra feel trim actuator of client, cost-saving.
Brief description of the 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 structural representation.
Output shaft 1 in figure, dust ring 2, fore bearing 3, housing 4, shaft seal 5, plane bearing 6, oil port cover 7, rear bearing 8, flow dunnage 9, seal ring 10, stator 11, rotor 12, bolt 13, seal ring 14, seal ring 15, valve ball 16, compensating plate 17, bonnet 18, pin tooth 19, seal ring 20, plane bearing 21, couple axle 22, back-up ring 23, housing liquid entering hole liquid return hole 01,02.
Fig. 2 is the structural representation of compensating plate in Fig. 1 embodiment.
In figure, be two face A faces, the B face of compensating plate.
embodiment one
The brevicone axon of the present embodiment to compact type high-speed distributing cycloid hydraulic motor basic structure as shown in Figure 1, comprise the housing 4 that is shaped with liquid entering hole refluxing opening 01,02, the cycloidal pin wheel set being made up of stator 11, rotor 12 and pin tooth 19 and the flow-distribution mechanism being made up of the complex liquid baric flow road of flow dunnage 9 and the compound duct of rotor 12 are equipped with in one end of described housing 4, the another side of described rotor 12 is shaped with and has the duct of matching with compound pore passage structure, and the delivery outlet of described housing 4 the other ends is supported with the output shaft 1 from stretching out in housing 4; The rotor 12 of described cycloidal pin wheel set engages with the external gear of couple axle 22 one end by internal spline, and the other end of described couple axle 22 is connected with output shaft 1 transmission; The other end of the described rotor 12 with compound duct contacts with compensating plate 17, the structure of compensating plate 17 as shown in Figure 2, described compensating plate 17 is A face with the one side of rotor 12 combinations, precision machined A face is shaped as concave surface, and the another side that compensating plate 17 contacts with bonnet 18 is B face, precision machined B face is shaped as convex surface, two A of described compensating plate 17, the planeness of B face are rendered as slight concave structure or convex configuration, on the B of compensating plate 17 face, be shaped with unidirectional valve opening and liquid chunnel hole, have liquid chunnel hole moving and have a throttling function from A face to B surface current.
Output shaft 1 is arranged in housing 4, in housing bore, there is machinable bearings mounted disc hole, described rear disc hole is 2 times of left and right of front disc hole axial length, front disc hole length is 25mm left and right, the rear and front end of output shaft 1 is all supported with front and back bearings 3, 8, the shaft seal 5 that housing bore and output shaft 1 is rotated to sealing is installed between described fore bearing 3 and rear bearing 8, described fore bearing 3 adopts and completely fills roller bearing structure, adopt dust ring 2 by its sealing and be isolated from the outside, in dust ring, be full of lubricating grease, described dust ring 2 adopts L shaped skeleton lip to install towards fore bearing, the external diameter installation dimension of described full dress roller bearing is large, can bear heavy duty is the radial force that output shaft 1 is larger, described rear bearing 8 adopts needle bearing, described needle bearing is positioned at the front end of an oil duct in addition, also be conducive to make the integrally-built shaft orientation layout of motor compacter.
The B face of described compensating plate 17 is connected with the one side of bonnet 18, on described bonnet 18, be shaped with the stepped ring forging face of different-diameter and the unidirectional valve opening of B face and liquid chunnel hole and have mutual alignment relation, compensating plate 7 has unidirectional valve opening valve ball 16 is installed, composition one-way valve, the B mask of one-way valve and compensating plate 7 has liquid chunnel hole to cooperate common cooperation under the eccentric motion pressure runner of motor operation rotor 12 distributes with the stepped ring forging face on bonnet 18, the another side that pressure oil liquid acts on rotor 12 is shaped with and has on the duct of matching with compound pore passage structure, make under high pressure flow motion of rotor 12, the pressure of its both ends of the surface can balance, also can ensure that compensating plate 7 is in optimum Working simultaneously, pressure difference can compensation balance plate reserved concave surface and convex configuration in 7 designs, more be conducive to ensure that the axial clearance that turns stator pair maintains rational scope, thereby make the motor under high pressure can be reliably and stable work.
Facts have proved, the brevicone axon of the present embodiment can be born higher pressure to the motor that is arranged so that of compact type high-speed distributing cycloid hydraulic motor pressure balance plate structure, can more steadily with reliably work, the improvement of bearing structure is conducive to bear radially heavy duty more in addition, the design's motor is very compact at axial direction in addition, be convenient to the very short place of installing space, meet more applying working condition.
In addition to the implementation, the utility model can also have other mode of executions, as the axial dimension length of housing lengthens.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 (8)

1. a brevicone axon is to compact type high-speed distributing cycloid hydraulic motor, comprise the housing that is shaped with liquid entering hole and refluxing opening, the cycloidal pin wheel set being made up of stator, rotor and pin tooth and the flow-distribution mechanism being made up of the complex liquid baric flow road of flow dunnage and the compound duct of rotor are equipped with in one end of described housing, the delivery outlet of its other end is supported with the output shaft from stretching out in housing, the rotor of described cycloidal pin wheel set engages with the external gear of couple axle one end by internal spline, and the other end of described couple axle is connected with output shaft transmission; It is characterized in that: described in there is the rotor in compound duct the other end contact with compensating plate, the one side that described compensating plate is combined with rotor is concave surface, and the another side contacting with bonnet is convex surface.
2. brevicone axon according to claim 1, to compact type high-speed distributing cycloid hydraulic motor, is characterized in that: the planeness of two faces of described compensating plate is rendered as slight concave structure or convex configuration.
3. brevicone axon according to claim 2, to compact type high-speed distributing cycloid hydraulic motor, is characterized in that: the rotor one side of described compensating plate contact is shaped with and has the duct of matching with its compound pore passage structure.
4. brevicone axon according to claim 3 is to compact type high-speed distributing cycloid hydraulic motor, it is characterized in that: described output shaft rear and front end is all supported with front and back bearings, the shaft seal that housing bore and output shaft is rotated to sealing is installed between described fore bearing and rear bearing, and described fore bearing adopts and completely fills roller bearing.
5. brevicone axon according to claim 4, to compact type high-speed distributing cycloid hydraulic motor, is characterized in that: described rear bearing adopts needle bearing, and described needle bearing is positioned at the front end of an oil duct.
6. brevicone axon according to claim 5 is to compact type high-speed distributing cycloid hydraulic motor, it is characterized in that: described compensating plate has unidirectional valve opening and runner hole, described compensating plate another side contacts with bonnet one side, is shaped with different stepped ring forging faces and communicates with unidirectional valve opening, the runner hole of compensating plate on described bonnet.
7. brevicone axon according to claim 6, to compact type high-speed distributing cycloid hydraulic motor, is characterized in that: described fore bearing adopts dust ring by its sealing and is isolated from the outside, and in described dust ring, is full of lubricating grease.
8. brevicone axon according to claim 7, to compact type high-speed distributing cycloid hydraulic motor, is characterized in that: described dust ring adopts L shaped skeleton lip to install towards fore bearing.
CN201420003666.8U 2014-01-05 2014-01-05 Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body Withdrawn - After Issue CN203685464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420003666.8U CN203685464U (en) 2014-01-05 2014-01-05 Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420003666.8U CN203685464U (en) 2014-01-05 2014-01-05 Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696907A (en) * 2014-01-05 2014-04-02 镇江大力液压马达股份有限公司 Short-shell axially compact high-speed flow distribution cycloid hydraulic motor
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696907A (en) * 2014-01-05 2014-04-02 镇江大力液压马达股份有限公司 Short-shell axially compact high-speed flow distribution cycloid hydraulic motor
CN103696907B (en) * 2014-01-05 2016-05-11 镇江大力液压马达股份有限公司 Brevicone axon is to compact high-speed distributing cycloid hydraulic motor
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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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140702

Effective date of abandoning: 20160511

C25 Abandonment of patent right or utility model to avoid double patenting