CN103696907B - Brevicone axon is to compact high-speed distributing cycloid hydraulic motor - Google Patents
Brevicone axon is to compact high-speed distributing cycloid hydraulic motor Download PDFInfo
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- CN103696907B CN103696907B CN201410002879.3A CN201410002879A CN103696907B CN 103696907 B CN103696907 B CN 103696907B CN 201410002879 A CN201410002879 A CN 201410002879A CN 103696907 B CN103696907 B CN 103696907B
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Abstract
The present invention relates to a kind of brevicone axon to compact high-speed distributing cycloid hydraulic motor, belong to hydraulic transmission technology field. Cycloid hydraulic motor of the present invention comprises the housing that is shaped with inlet and refluxing opening, the flow-distribution mechanism that the complex liquid baric flow road of the rotor of cycloidal pin wheel set and flow gripper shoe forms, rotor contacts with compensating plate, the flatness of two faces of compensating plate is rendered as slight concave structure or convex configuration, the fore bearing of output shaft adopts and completely fills roller bearing support, the axial length of housing is very compact, motor drive shaft of the present invention is to compact dimensions and can bear higher pressure, can make motor can bear large radial load.
Description
Technical field
The present invention relates to a kind ofly realize the cycloid hydraulic motor of hydraulic energy to mechanical energy conversion by cycloidal pin wheels Meshing Pair, the very short brevicone axon of especially a kind of housing, to compact high-speed distributing cycloid hydraulic motor, belongs to hydraulic transmission technology field.
Background technology
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, unit power density is large, efficiency is high, the range of speeds is wide, thereby is widely applied.
The basic structure of such device is on body shell or bonnet, to be shaped with inlet 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 universal driving shaft one end by internal spline, and the other end of universal driving shaft is connected with output shaft transmission. When work, flow-distribution mechanism makes inlet 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, pressure fluid, from inlet 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 differential that engages chamber with contraction in engagement chamber and orders about rotation, and this is rotated by universal driving shaft and is delivered to output shaft output, thereby realizes the conversion of hydraulic energy to mechanical energy. Meanwhile, flow-distribution mechanism is also by universal driving shaft 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 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 valve plate of motor is to integrate with rotor, or at the elongated end of the universal driving shaft coordinating with its internal spline, as shown in two file US Patent No. 3601513, US4717320, wherein the latter becomes one for valve 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 load can not get fine improvement, under a lot of severe duties, does not reach user's requirement.
Summary of the invention
The object of the invention is to: the problem existing for above prior art, propose a kind of compact conformation and can bear the high-speed distributing cycloid hydraulic motor of high pressure, large radial load, and reduce the overall applicability cost of motor, the manufacturability of processing, assembling that improves hydraulic motor is all good, promotes its cost performance.
In order to achieve the above object, applicant is by the structural analysis to cycloid hydraulic motor, especially there is the research of high speed distributing construction cycloidal pin wheel set 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 technical scheme of the present invention is: brevicone axon is to compact high-speed distributing cycloid hydraulic motor, comprise the housing that is shaped with inlet 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 gripper shoe 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 universal driving shaft one end by internal spline, and the other end of described universal driving shaft 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 flatness of two faces of described compensating plate is rendered as slight concave structure or convex configuration.
Above technical 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 technical 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 invention, 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 load, and after improving, Motor Components is processed, assembles all very convenient, can expand the range of application 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 present invention is described in further detail.
Fig. 1 is the structural representation of one embodiment of the invention.
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 gripper shoe 9, sealing ring 10, stator 11, rotor 12, bolt 13, sealing ring 14, sealing ring 15, valve ball 16, compensating plate 17, bonnet 18, pin tooth 19, sealing ring 20, plane bearing 21, universal driving shaft 22, back-up ring 23, housing inlet 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 mono-
The brevicone axon of the present embodiment to compact high-speed distributing cycloid hydraulic motor basic structure as shown in Figure 1, comprise the housing 4 that is shaped with inlet 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 gripper shoe 9 and the compound duct of rotor 12 are equipped with in one end of described housing 4, and the delivery outlet of its other end 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 universal driving shaft 22 one end by internal spline, and the other end of described universal driving shaft 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 flatness 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 fluid course hole, have fluid course 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 load 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 fluid course hole and have mutual alignment relation, compensating plate 7 has unidirectional valve opening valve ball 16 is installed, composition check valve, the B mask of check valve and compensating plate 7 has fluid course 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, 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 differential can compensation balance plate reserved concave surface and convex configuration in 7 designs, more be conducive to ensure that the end play 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 high-speed distributing cycloid hydraulic motor pressure balance plate structure, can more steadily with reliably work, the improvement of bearing arrangement 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 present invention can also have other embodiments, as the axial dimension length of housing lengthens. All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (7)
1. a brevicone axon is to compact high-speed distributing cycloid hydraulic motor, comprise the housing that is shaped with inlet 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 gripper shoe 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 universal driving shaft one end by internal spline, and the other end of described universal driving shaft is connected with output shaft transmission; It is characterized in that: described rotor has the one end in compound duct and the flow-distribution mechanism that flow gripper shoe forms, and the described rotor other end contacts with compensating plate, and 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 high-speed distributing cycloid hydraulic motor, is characterized in that: the flatness of two faces of described compensating plate is rendered as slight concave structure or convex configuration.
3. brevicone axon according to claim 2 is to compact high-speed distributing cycloid hydraulic motor, it is characterized in that: the front end of described output shaft is supported with fore bearing, the rear end of described output shaft is supported with rear bearing, 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.
4. brevicone axon according to claim 3, to compact 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.
5. brevicone axon according to claim 4 is to compact 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.
6. brevicone axon according to claim 5, to compact 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.
7. brevicone axon according to claim 6, to compact high-speed distributing cycloid hydraulic motor, is characterized in that: described dust ring adopts L shaped skeleton lip to install towards fore bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002879.3A CN103696907B (en) | 2014-01-05 | 2014-01-05 | Brevicone axon is to compact high-speed distributing cycloid hydraulic motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002879.3A CN103696907B (en) | 2014-01-05 | 2014-01-05 | Brevicone axon is to compact high-speed distributing cycloid hydraulic motor |
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| CN103696907A CN103696907A (en) | 2014-04-02 |
| CN103696907B true CN103696907B (en) | 2016-05-11 |
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| CN201410002879.3A Active CN103696907B (en) | 2014-01-05 | 2014-01-05 | Brevicone axon is to compact high-speed distributing cycloid hydraulic motor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956636A (en) * | 2018-01-18 | 2018-04-24 | 镇江大力液压马达股份有限公司 | A kind of hydraulic brake motor |
| CN108506156B (en) * | 2018-04-13 | 2023-12-05 | 杭州宇控机电工程有限公司 | Elbow joint swing hydraulic motor for full sea depth hydraulic manipulator |
| CN108916246A (en) * | 2018-09-20 | 2018-11-30 | 镇江大力液压马达股份有限公司 | A kind of output support device of cycloid hydraulic motor |
| CN109854443A (en) * | 2019-03-03 | 2019-06-07 | 宁波精润机械有限公司 | A kind of pressure resistance high torque hydraulic motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357133A (en) * | 1978-05-26 | 1982-11-02 | White Hollis Newcomb Jun | Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| JP2000097166A (en) * | 1998-09-17 | 2000-04-04 | Showa Corp | Vane spring-out auxiliary structure for vane pump |
| US6257853B1 (en) * | 2000-06-05 | 2001-07-10 | White Hydraulics, Inc. | Hydraulic motor with pressure compensating manifold |
| CN102900597A (en) * | 2012-10-28 | 2013-01-30 | 镇江大力液压马达有限责任公司 | Compact axial flow distribution cycloid hydraulic motor with short shell |
| CN203685464U (en) * | 2014-01-05 | 2014-07-02 | 镇江大力液压马达股份有限公司 | Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6783340B2 (en) * | 2002-09-13 | 2004-08-31 | Parker-Hannifin Corporation | Rotor with a hydraulic overbalancing recess |
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2014
- 2014-01-05 CN CN201410002879.3A patent/CN103696907B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4357133A (en) * | 1978-05-26 | 1982-11-02 | White Hollis Newcomb Jun | Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| JP2000097166A (en) * | 1998-09-17 | 2000-04-04 | Showa Corp | Vane spring-out auxiliary structure for vane pump |
| US6257853B1 (en) * | 2000-06-05 | 2001-07-10 | White Hydraulics, Inc. | Hydraulic motor with pressure compensating manifold |
| CN102900597A (en) * | 2012-10-28 | 2013-01-30 | 镇江大力液压马达有限责任公司 | Compact axial flow distribution cycloid hydraulic motor with short shell |
| CN203685464U (en) * | 2014-01-05 | 2014-07-02 | 镇江大力液压马达股份有限公司 | Axially compact high-speed flow distribution cycloid hydraulic motor with short shell body |
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