CN102650331A - Rotary connection assembly with rotational degree of freedom in two directions - Google Patents
Rotary connection assembly with rotational degree of freedom in two directions Download PDFInfo
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- CN102650331A CN102650331A CN2012101032354A CN201210103235A CN102650331A CN 102650331 A CN102650331 A CN 102650331A CN 2012101032354 A CN2012101032354 A CN 2012101032354A CN 201210103235 A CN201210103235 A CN 201210103235A CN 102650331 A CN102650331 A CN 102650331A
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Abstract
The invention discloses a rotary connection assembly with rotational degree of freedom in two directions, comprising bearings, a bearing seat and a connecting rod, and further comprising a transverse central shaft and a longitudinal central shaft, wherein a through hole is arranged in the middle of the transverse central shaft along a direction which is vertical to an axis of the transverse central shaft; the longitudinal central shaft passes through the through hole to be crossly connected with the transverse central shaft; the bearing seat is in a hollow framework structure, and the transverse central shaft and the longitudinal central shaft are distributed in the bearing seat; the transverse central shaft is connected with the bearing seat through transverse bearings and is transversely arranged in the bearing seat; one end of the connecting rod is in a hollow cylinder structure; the transverse central shaft is provided with a rectangular through hole which is matched with the cylinder structure; the connecting rod is arranged on the longitudinal central shaft in a penetrating manner through a longitudinal bearing, and is connected with the longitudinal central shaft; and the connecting rod can transversely rotate within a certain angle along the axis of the transverse central shaft and can rotate within a certain angle in the bearing seat along the axis of the longitudinal central shaft. The connection assembly has the characteristics of compact structure, fewer parts, easiness for arrangement and low cost, and can be applied to the field of an inclined plate or swinging plate type transmission form engine, such as a Stirling engine.
Description
Technical field
The present invention relates to a kind of linear-rotary motion conversion mechanism parts, especially a kind of assembly that is rotationally connected with both direction rotary freedom, just bearing unit is applied to axial type driving mechanism fields such as swash plate or swing disc.
Background technique
Axial type such as swash plate or swing disc driving mechanism is that straight reciprocating motion is converted into the common components that rotatablely moves; In swash plate or Wobble plate drive mechanism Stirling engine; Driving mechanism adopts swash plate or Wobble plate structure more, and the traffic direction of piston is identical with the axial direction of output shaft, makes to arrange compactness; The miniaturization Design that helps motor; Therefore the switching mechanism parts of the linear-rotary motion of piston just seem particularly important, and wherein bearing unit is one of them important spare part, and it often relates to the movement environment of two degrees of freedom; Its performance, reliability directly influence the Performance And Reliability of motor, therefore are the focuses of studying both at home and abroad always.Publication number is that the Chinese patent document of CN 101641497A has been introduced a kind of composite structure form that can realize two rotational freedoms, and it is made up of pendulum tube pin, bearing support, U-shaped connecting rod, link pin and five bearing a plurality of parts such as (comprising two ball bearings, a needle bearing and two thrust bearings).In transmission system: a pendulum tube pin front end screw thread is connected with the pendulum tube, and U type connecting rod is connected with piston rod, the combinations thereof structure can realize straight reciprocating motion with rotatablely move between mutual conversion, but existence deficiency as follows:
(1) modular construction is complicated, and component are more, and bearing just reaches five, is unfavorable for mechanism's miniaturization and lightweight;
(2) bearing is more, and especially needle bearing and thrust bearing exist lubricated and the bigger problem of seal oil difficulty, control badly, can influence the reliability that mechanism works;
(3) U-shaped connecting rod manufacturability is relatively poor, and difficulty of processing is big, and cost is higher.
Summary of the invention
The technical problem that the present invention will solve provides a kind of composite set (claiming bearing unit again) that can be used for realizing the both direction rotational freedom, solves present bearing unit complex structure, and component are many, and cost is high, the problem of poor reliability.
For realizing above-mentioned purpose; The present invention proposes a kind of assembly that is rotationally connected with both direction rotary freedom; Comprise bearing, bearing support and connecting rod, it also comprises transverse central axis and vertical central axis, with its axis normal direction one through hole is arranged in the middle of the transverse central axis; Vertical central axis passes above-mentioned through hole, arranges with the transverse central axis criss-crossing; Described bearing support is the frame structure of hollow, and transverse central axis and vertical central axis are arranged in the bearing support; Transverse central axis is connected with bearing support through horizontal bearing, and lateral arrangement is in bearing support; One end of described connecting rod is the tube structure of hollow; Have on the transverse central axis and the suitable rectangular through-hole of described tube structure; Connecting rod is set on the vertical central axis through vertical bearing; And be connected with vertical central axis, connecting rod can be along axis lateral rotation in several angle of transverse central axis, and longitudinally the axis of central shaft rotates in several angle in bearing support.
Preferably; The above-mentioned assembly that is rotationally connected with both direction rotary freedom; Bearing support laterally has a through hole of arranging transverse central axis, and vertical have a through hole that is used to arrange the big end/head of connecting rod, a vertical through hole of being convenient to the attaching/detaching vertical central axis that also is provided with; Above-mentioned vertical and through hole is enough big longitudinally, guarantee that connecting rod has enough rotation spaces laterally, longitudinally along bearing support.
Preferably; The above-mentioned assembly that is rotationally connected with both direction rotary freedom, the bearing that supports transverse central axis is two, is arranged in the both sides of connecting rod; The form that adopts the fixing end dissociative of an end to support; The horizontal bearing of free support end adopts back-up ring to fix, and the inner ring of the horizontal bearing of fixed support end adopts internal thread back-up ring location, and outside thread back-up ring location is adopted in the outer ring.
Preferably; The above-mentioned assembly that is rotationally connected with both direction rotary freedom; The longitudinal shaft bearing outer-ring positions with back-up ring through the hole, and vertically bearing inner race positions through the pair of bearings back-up ring, and is locked through briquetting through the screw/bolt that is arranged on longitudinal center's axial end.
Preferably, the above-mentioned assembly that is rotationally connected with both direction rotary freedom adopts gap or transition fit between described vertical central axis and the vertical bearing, adopts transition or interference fit between connecting rod and the vertical bearing.
Preferably, the above-mentioned assembly that is rotationally connected with both direction rotary freedom, described transverse central axis is provided with center hole.
Preferably, the above-mentioned assembly that is rotationally connected with both direction rotary freedom, described horizontal bearing adopts self oiling bearing with vertical bearing.
The invention has the beneficial effects as follows:
Adopt technique scheme to design the parts that are applicable to certain gas engine, and on model machine, carried out demonstration test, and through the continuous service test above 100 hours; Test result shows that this device running is steady, reliable, and vibration noise is low; Compare traditional structure, it has compact structure, and component are few; Reliability is high, the advantage that cost is low.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further explain.
Fig. 1 is a form structure schematic representation of the present invention.
Fig. 2 is a longitudinal sectional view of the present invention.
Fig. 3 is a transverse sectional view of the present invention.
The 1-bearing support; The 2-transverse central axis; The 3-vertical central axis; The 4-bolt; The 5-connecting rod; The horizontal bearing of 6-; The 7-back-up ring; The vertical bearing of 8-; 9-internal thread back-up ring; 10-outside thread back-up ring; The 11-end ring; 12-screw/bolt; 13-uses back-up ring in the hole.
Embodiment
Fig. 1-3 is depicted as one embodiment of the present of invention; A kind of assembly that is rotationally connected with both direction rotary freedom comprises transverse central axis 2, vertical central axis 3, connecting rod 5, bearing support 1, bearing and is used as parts such as the back-up ring composition of bearing location usefulness; Bearing support 1 is the frame structure of hollow, and a through hole is laterally arranged, and is convenient to arrange transverse central axis 2; Vertical have a rectangle or circle or an ellipse hole; Be used to arrange the big end/head of connecting rod 5, vertically also be provided with rectangle or circle or ellipse hole, be convenient to attaching/detaching vertical central axis 3; Rectangle that is provided with on the bearing support 1 or circle or ellipse hole are enough big, guarantee that connecting rod has enough rotation spaces laterally, longitudinally along bearing support 1.Bearing support 1 is the body of the whole assembly that is rotationally connected; Transverse central axis 2 is connected with vertical central axis 3 crosses; Be installed in the bearing support 1, transverse central axis 2 is connected with bearing support 1 through two horizontal bearings 6, can be along the rotational of transverse central axis 2; Vertical central axis 3 and transverse central axis 2 intercross arrangement are arranged on the bearing support 1.The promptly big end/head of connecting rod 5 one ends is the cylindrical shape of hollow; Have on the transverse central axis 2 and the suitable rectangular through-hole of described tube structure; Connecting rod 5 is set on the vertical central axis 3 through vertical bearing 8; And be connected with vertical central axis 3, connecting rod 5 can be along axis lateral rotation in several angle of transverse central axis 2, and longitudinally the axis of central shaft 3 rotates in several angle in bearing support 1.The other end of connecting rod 5 is that small end/head is inverted U-shaped, and the upper end connects parts such as piston of engine bar, and the said structure form helps reducing the weight of connecting rod 5, guarantees enough rigidity again.Vertically bearing 8 can be ball bearing or needle bearing.
Bearing support 1 can be fixedly connected through bolt 4 or outside thread mode and other members such as swash plate or balance, and bolt is connected with and is beneficial to the control combination structure direction, is convenient to assemble.
Laterally bearing 6 general layouts are two, are symmetricly set on the both sides of connecting rod 5, are furnished with like this to be beneficial to reduce the load that single bearing bears, and improve bearing life, reduce the volume and the weight of composite structure.Two structural types that horizontal bearing 6 adopts the fixing end dissociative of an end to support; The free bearing that supports adopts 7 pairs of inner rings of back-up ring to position; Fixed end bearing use internal thread back-up ring 9 is internal respectively with outside thread back-up ring 10, the outer ring positions; Orientation type is convenient to arrange like this, and processing and assembly process process are better.
Vertically adopt gap or transition fit between bearing 8 and the vertical central axis 3, vertically adopt transition or interference fit between bearing 8 and the connecting rod 5, help the assembling and the dismounting of composite structure like this.Vertically bearing 8 outer rings position with back-up ring 13 through the hole; Vertically bearing 8 inner rings position through pair of bearings back-up ring 11; Assembling fore bearing back-up ring 11 can through repair make between end ring 11 and the transverse central axis 2 gap be zero or the gap enough little, help members such as connecting rod 5 and vertical bearing 8 like this and locate.Vertically bearing 8 is set on the vertical central axis 3, and an end is resisted against on the boss of vertical central axis 3, and the other end is locked through briquetting, transition block through the screw/bolt 12 that is arranged on vertical central axis 3 end faces.
Processing circular hole or part circular hole on an end end face of bearing support 1, this circular hole is coaxial with the bolt hole on the bearing support 1 other end end face, helps the assembling and the dismounting of bolt 4 on the bearing support 1 like this.
Machining center hole on the transverse central axis 2 had so both helped assembling and dismounting, can be used as grease channel again, thereby parts such as bearing are lubricated.
Laterally bearing 6 and vertical bearing 8 preferential self oiling bearings that adopt help simplifying the lubricated and sealing of bearing like this, adopt other lubricating system certainly, also are fine like the mode of lubricating oil splash lubrication, and prerequisite is to design independently lubrication system.
Those skilled in the art will recognize that; Above-mentioned embodiment is exemplary; Be in order better to make those skilled in the art can understand this patent; Can not be interpreted as it is restriction to this patent protection domain, so long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope of this patent protection.
Claims (8)
1. assembly that is rotationally connected with both direction rotary freedom; Comprise bearing, bearing support and connecting rod; It is characterized in that: it also comprises transverse central axis (2) and vertical central axis (3); With its axis normal direction one through hole is arranged in the middle of the transverse central axis (2), vertical central axis (3) passes above-mentioned through hole, arranges with transverse central axis (2) criss-crossing; Described bearing support (1) is the frame structure of hollow, and transverse central axis (2) and vertical central axis (3) are arranged in the bearing support (1); Transverse central axis (2) is connected with bearing support (1) through horizontal bearing (6), and lateral arrangement is in bearing support (1); One end of described connecting rod (5) is the tube structure of hollow; Have on the transverse central axis (2) and the suitable rectangular through-hole of described tube structure; Connecting rod (5) is set on the vertical central axis (3) through vertical bearing (8); And be connected with vertical central axis (3), connecting rod (5) can be along axis lateral rotation in several angle of transverse central axis (2), and longitudinally the axis of central shaft (3) rotates in the inherent several angle of bearing support (1).
2. the assembly that is rotationally connected with both direction rotary freedom according to claim 1; It is characterized in that: bearing support (1) laterally has a through hole of arranging transverse central axis (2); Vertical have a through hole that is used to arrange the big end/head of connecting rod (5); Vertically also be provided with the through hole of being convenient to attaching/detaching vertical central axis (3), above-mentioned vertical and through hole is enough big longitudinally, guarantee that connecting rod has enough rotation spaces laterally, longitudinally along bearing support (1).
3. the assembly that is rotationally connected with both direction rotary freedom according to claim 1 and 2; It is characterized in that: the bearing that supports transverse central axis (2) is two; Be arranged in the both sides of connecting rod (5), the form that two above-mentioned bearings adopt the fixing end dissociative of an end to support, the horizontal bearing (6) of free support end adopts back-up ring (7) fixing; The inner ring of the horizontal bearing (6) of fixed support end adopts internal thread back-up ring (9) location, and outside thread back-up ring (10) location is adopted in the outer ring.
4. the assembly that is rotationally connected with both direction rotary freedom according to claim 1 and 2; It is characterized in that: vertically bearing (8) outer ring positions with back-up ring (13) through the hole; Vertically bearing (8) inner ring positions through pair of bearings back-up ring (11), and is locked through briquetting through the screw/bolt (12) that is arranged on vertical central axis (3) end face.
5. the assembly that is rotationally connected with both direction rotary freedom according to claim 3; It is characterized in that: vertically bearing (8) outer ring positions with back-up ring (13) through the hole; Vertically bearing (8) inner ring positions through pair of bearings back-up ring (11), and is locked through briquetting through the screw/bolt (12) that is arranged on vertical central axis (3) end face.
6. the assembly that is rotationally connected with both direction rotary freedom according to claim 5; It is characterized in that: adopt gap or transition fit between described vertical central axis (3) and the vertical bearing (8), adopt transition or interference fit between connecting rod (5) and the vertical bearing (8).
7. the assembly that is rotationally connected with both direction rotary freedom according to claim 6 is characterized in that: described transverse central axis (2) is provided with center hole.
8. the assembly that is rotationally connected with both direction rotary freedom according to claim 7 is characterized in that: described horizontal bearing (6) and vertical bearing (8) adopt self oiling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101032354A CN102650331A (en) | 2012-04-10 | 2012-04-10 | Rotary connection assembly with rotational degree of freedom in two directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101032354A CN102650331A (en) | 2012-04-10 | 2012-04-10 | Rotary connection assembly with rotational degree of freedom in two directions |
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| Publication Number | Publication Date |
|---|---|
| CN102650331A true CN102650331A (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101032354A Pending CN102650331A (en) | 2012-04-10 | 2012-04-10 | Rotary connection assembly with rotational degree of freedom in two directions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454318A (en) * | 2019-07-29 | 2019-11-15 | 武汉市炫能清洁能源科技有限公司 | A kind of adjustable pendulum-type electricity generation system of multiple degrees of freedom |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2545998A1 (en) * | 1974-10-15 | 1976-04-29 | Notario Luis Iturriaga | COMPRESSOR WITH INTERACTIVE PISTON |
| JP2000074169A (en) * | 1998-09-02 | 2000-03-07 | Hinomaru Shokai:Kk | Drive device |
| CN1331778A (en) * | 1998-12-22 | 2002-01-16 | 耳语技术有限公司 | Improvements in assembly and mounting of engine drive mechanism |
| CN1723336A (en) * | 2003-06-26 | 2006-01-18 | 阿维德·默里·约翰逊 | Linear into rotatory or vice versa motion convertor |
| CN101680517A (en) * | 2007-07-09 | 2010-03-24 | 艾顿株式会社 | Reciprocating rotary power transforming apparatus |
| CN202560963U (en) * | 2012-04-10 | 2012-11-28 | 上海齐耀动力技术有限公司 | Rotary connecting assembly with two directional rotating degrees of freedom |
-
2012
- 2012-04-10 CN CN2012101032354A patent/CN102650331A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2545998A1 (en) * | 1974-10-15 | 1976-04-29 | Notario Luis Iturriaga | COMPRESSOR WITH INTERACTIVE PISTON |
| JP2000074169A (en) * | 1998-09-02 | 2000-03-07 | Hinomaru Shokai:Kk | Drive device |
| CN1331778A (en) * | 1998-12-22 | 2002-01-16 | 耳语技术有限公司 | Improvements in assembly and mounting of engine drive mechanism |
| CN1723336A (en) * | 2003-06-26 | 2006-01-18 | 阿维德·默里·约翰逊 | Linear into rotatory or vice versa motion convertor |
| CN101680517A (en) * | 2007-07-09 | 2010-03-24 | 艾顿株式会社 | Reciprocating rotary power transforming apparatus |
| CN202560963U (en) * | 2012-04-10 | 2012-11-28 | 上海齐耀动力技术有限公司 | Rotary connecting assembly with two directional rotating degrees of freedom |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454318A (en) * | 2019-07-29 | 2019-11-15 | 武汉市炫能清洁能源科技有限公司 | A kind of adjustable pendulum-type electricity generation system of multiple degrees of freedom |
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Application publication date: 20120829 |
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