CN2136905Y - Cam star wheel intermittent transmission mechanism - Google Patents
Cam star wheel intermittent transmission mechanism Download PDFInfo
- Publication number
- CN2136905Y CN2136905Y CN 92218532 CN92218532U CN2136905Y CN 2136905 Y CN2136905 Y CN 2136905Y CN 92218532 CN92218532 CN 92218532 CN 92218532 U CN92218532 U CN 92218532U CN 2136905 Y CN2136905 Y CN 2136905Y
- Authority
- CN
- China
- Prior art keywords
- star
- wheel
- cam
- roller
- rollers
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 title abstract description 10
- 241000239290 Araneae Species 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses an intermittent drive mechanism, it comprises a pair of conjugate cam (2) and two sets of many roller star gear (3) of installing on same star wheel axle (10). The utility model has the characteristics of the motion is steady, does not have soft, hard impact, and transmission efficiency is high, and the noise is low, and the structure is relatively simpler, and design, manufacturing are all difficult etc, the utility model discloses can extensively satisfy and realize intermittent type transmission under high-speed heavy load occasion.
Description
The utility model belongs to the mechanical transmission mechanism technical field, and particularly intermittent motion mechanism's technical field is particularly useful under even rotating speed input, and the output shaft angular displacement meets the transmission that intermittently of symmetrical standard transmission function rule rotatablely moves.
The driving mechanism that rotatablely move the intermittence that " mechanical design handbook " (second edition) of being published by Chemical Industry Press provides, Geneva mechanism is arranged, the face cam indexing mechanism, interior engagement star-wheel indexing mechanism, spiral cam indexing mechanism, the timing drop out of gear indexing mechanism of cam control, gear connecting rod combination intermittent mechanisms, the indexing mechanisms of cam and Clutch Control etc. are multiple.According to Chinese patent retrieval, by its disclosed this class mechanism, it is 87102118,87215868,87211327,87215107 that application number is arranged, 89218796.4,90100438.3,90201226.6 etc. many.Take a broad view of the driving mechanism and the existing Chinese patent application that rotatablely move existing intermittence, the mechanism's more complicated that has, design, manufacturing be difficulty relatively; The basic law of the output movement that has is unique, and in starting with rest moment and impact; What have is gapped in kinematic pair, galloping; Have more then transmission efficiency lower, Applicable scope is less, generally can only be used in low speed underloading occasion.
It is a kind of under even rotating speed input that the purpose of this utility model is to provide, the output shaft angular displacement can meet and intermittently of symmetrical standard transmission function rule rotatablely moves, structure is relatively simple, and running is steady, impact is little, the cam star-wheel intermittent drive mechanism that transmission efficiency is higher relatively.
Realizing the technological scheme of the utility model purpose, is the basic exercise variation that adopts Geneva mechanism and spiral cam indexing mechanism, and its basic structure is made up of a pair of conjugate cam and two groups of many rollers star-wheels that are installed on the same axle.Particularly, it has this due casing of class mechanism, and the cam and the many rollers star-wheel that are installed in the kinematic pair each other in the casing, and its improvement part is:
A) said cam is 2, and its shape is identical, very little to the greatest extent equating, installation direction is opposite, with the straight pin location, is made it to be fixed as one with camshaft by bolt, thereby constitute one group of conjugate cam, said straight pin is arranged on the lift starting point of the curved portion of cam, on the line segment of the line in the axle center of camshaft, also can be arranged on the extension line segment of said line.
It is b) said that many rollers star-wheel is arranged is two groups, and the star-wheel roller of the star-wheel of roller more than every group has 3 at least, and the number of two groups of star-wheel rollers equates, the star-wheel roller all is installed between two boss of the left and right sides of spider gear shaft by bearing pin grouping, and be distributed on the same circle footpath, the center of circle angle that is located between two the adjacent star-wheel rollers on the star-wheel of roller more than every group is 360 °/n
1, and said n arranged
1Be the number of every group of star-wheel roller, the center of circle angle that is located at more than two groups between on the roller star-wheel both star-wheel rollers of adjoining mutually then is 360 °/n
2, and said n
2For being located at total number of the star-wheel roller on the roller star-wheel more than two groups.
The utlity model has following characteristics: (1) can learn equation according to meeting symmetrical standard movement as required, design, manufacturing cam, thereby motion is steadily, no soft, hard impact, and can in certain Shaft angle scope, pause, realize intermittent movement; (2) at the volley owing to have 2～3 star-wheel rollers to contact all the time, and be rolling friction, thereby transmission efficiency height, noise are low, can realize not having the gap transmission with cam; (3) structure is relatively simple, designs, makes not difficult.The utility model can extensively satisfy under the high-speed overload occasion realizes intermittently-driving.
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing 1 is the plan view of a kind of structure of the present utility model.
Accompanying drawing 2 is the left-hand partial sectional view of accompanying drawing 1.
Accompanying drawing 3,4,5,6,7 is the motion state diagram of a kind of structure of the present utility model shown in the accompanying drawing 1,2.
Shown in accompanying drawing 1,2, on camshaft (6), 2 cams (4) are housed, their shape is identical, and size equates, installation direction opposite (namely back-to-back), and with straight pin (7) location, fastening with 2 bolts (5), thus consist of one group of conjugate cam. And said straight pin (7) is arranged on the lift starting point of the curved portion of cam (4), on the extension line segment of the line in the axle center of camshaft (6). Camshaft (6) is installed in the casing (1) by bearing (11). Between two boss of the arranged on left and right sides (shown in accompanying drawing 2 drawings) of spider gear shaft (10), by bearing pin (9) 3 star-wheel rollers (8) are housed respectively, and all on same diameter. Center of circle angle between two star-wheel rollers (8) is 60 °, thereby consists of roller star-wheel more than two groups (3). Spider gear shaft (10) is installed in the casing (1) by bearing (12), and both kinematic pairs (cylinder pair) each other of star-wheel roller (8) and cam (4). When camshaft (6) with counterclockwise at the uniform velocity during the rotation input, by contacting of cam (4) and star roller (8), make spider gear shaft (10) by the designed characteristics of motion clockwise intermittent rotary export.
The Mathematical Modeling of the utility model output can comprise known 9 kinds of following people:
(1) straight line:
f（z）＝z
(2) square parabola:
f（z）＝2z
2
(3) cubic parabola:
f（z）＝3z
2－2z
3
(4) 3～4 multinomial bipyramids:
f（z）＝8（z
3－z
4）
Five powers of (5) 3～4～5 multinomials:
f（z）＝10z
3－15z
4＋6z
5
(6) six powers:
f（z）＝8／3（5z
3－15z
4＋24z
5－16z
6）
(7) eight powers:
f（z）＝8／3（7z
3－35z
4＋112z
5－224z
6＋256z
7－128z
8）
(8) sinusoidal curve:
f（z）＝1／2·［1－cos（πz）］
(9) bass Te Huoen sinusoidal curve:
f（z）＝z－1／2π·sin（2πz）
Motion state of the present utility model is referring to accompanying drawing 3～7.Accompanying drawing 3～7 is for importing the various states in rotating a circle, and the star-wheel roller (8) of the star-wheel of roller more than every group (3) is 3 on the figure, and the angle that is located between the star-wheel roller (8) that adjoins mutually on the roller star-wheel more than two groups (3) is 60 °.
Accompanying drawing 3 expression initial states, at this moment, the center of the axle center of the center of star-wheel roller (8), camshaft (6) and straight pin (7), 3 same straight lines, when camshaft (6) when rotating in the direction of arrows, the ascend curve section of following cam (4) as shown in the figure, promote star-wheel (8)-1, spider gear shaft (10) is rotated in the opposite direction, and star-wheel roller (8)-I contact all the time with as shown in the figure overhead cam (4).When camshaft (6) rotated to accompanying drawing 4 positions, star-wheel roller (8)-2 contacted with the descending branch curve of as shown in the figure following cam (4).At this moment, enter three star-wheel rollers contact phase simultaneously.Accompanying drawing 5 produces the active region for star-wheel roller (8)-1.At this moment, overhead cam as shown in the figure (4) changes actuating cam into, promotes star-wheel roller (8)-I and continues to rotate by former direction, and to accompanying drawing 7, camshaft (6) rotates a week nearly through accompanying drawing 5, accompanying drawing 6, and many rollers star-wheel (3) has turned over 120 °.Therebetween, in this stage of accompanying drawing 6～accompanying drawing 2, be the resting the stage of many rollers star-wheel (3) (in the scope of β central angle, many rollers star-wheel (3) do not rotate).
In above movement process, according to the curvilinear motion of cam (4), many rollers star-wheel (3) changes according to certain rules, and its curve is as follows.
φ is the input corner of camshaft (6).
α is the output corner of spider gear shaft (10).
β is the corner at intermittence.
If the simple harmonic motion rule is pressed in output, then the mathematic(al) representation of curve is:
α＝π／3［1－cos（180／β·φ）］
Embodiment: star-wheel roller (8) is 3 for every group, and its diameter is φ 52mm, and uniform circle footpath is φ 135mm, distance between camshaft (6) and spider gear shaft (10) is about 175mm, the maximum lift of cam (4) is 140mm, and intermittently corner β is 32 °, and velocity ratio is 1:n
1=1:3.The utility model entire mechanism is installed in the casing (1) of sealing, fills with enough lubricant oil in casing (1).The processing of cam (4) is the data of calculating according to computer, and the computer of input machining center is shaped automatically by machining center thereafter.
Claims (1)
1, a kind of have casing (1) and be installed in the cam (4) of the kinematic pair each other in the casing (1) and the cam star-wheel intermittent drive mechanism of many rollers star-wheel (3), it is characterized in that:
A) said cam (4) is 2, and its shape is identical, and size equates that installation direction is opposite, locate with straight pin (7), make it to be fixed as one by bolt (5), and constitute one group of conjugate cam (2), said straight pin (7) with camshaft (6), be arranged on the lift starting point of the curved portion of cam (4), on the line segment of the line in the axle center of camshaft (6), also can be arranged on the extension line segment of said line
B) said many rollers star-wheel (3) is two groups, and the star-wheel roller (8) of the star-wheel of roller more than every group (3) has 3 at least, and the number of two groups of star-wheel rollers (8) equates, star-wheel roller (8) all is installed between two boss of the left and right sides of spider gear shaft (10) by bearing pin (9) grouping, and be distributed on the same circle footpath, the center of circle angle that is located between adjacent two the star-wheel rollers (8) on the star-wheel of roller more than every group (3) is 360 °/n
1, the center of circle angle that is located between on the roller star-wheel more than two groups (3) both star-wheel rollers (8) of adjoining mutually then is 360 °/n
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92218532 CN2136905Y (en) | 1992-08-14 | 1992-08-14 | Cam star wheel intermittent transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92218532 CN2136905Y (en) | 1992-08-14 | 1992-08-14 | Cam star wheel intermittent transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2136905Y true CN2136905Y (en) | 1993-06-23 |
Family
ID=33766036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92218532 Expired - Lifetime CN2136905Y (en) | 1992-08-14 | 1992-08-14 | Cam star wheel intermittent transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2136905Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121511A (en) * | 2009-11-04 | 2011-07-13 | 中山大学 | Transmission mechanism with intermittent output action |
| CN102296386A (en) * | 2011-08-22 | 2011-12-28 | 山西鸿基科技股份有限公司 | Clearance transmission mechanism for detaching roller of cotton comber |
| CN102528578A (en) * | 2012-01-04 | 2012-07-04 | 陈文龙 | Automatic precise grinding machine for jaw of nail clippers |
| CN102853034A (en) * | 2011-06-30 | 2013-01-02 | 刘运武 | Bearing type transmission wheel |
| CN106142027A (en) * | 2015-03-23 | 2016-11-23 | 焦作市歌馨机电设备有限公司 | Interior sheave intermittent rotary workbench |
-
1992
- 1992-08-14 CN CN 92218532 patent/CN2136905Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121511A (en) * | 2009-11-04 | 2011-07-13 | 中山大学 | Transmission mechanism with intermittent output action |
| CN102121511B (en) * | 2009-11-04 | 2013-07-10 | 中山大学 | Transmission mechanism with intermittent output action |
| CN102853034A (en) * | 2011-06-30 | 2013-01-02 | 刘运武 | Bearing type transmission wheel |
| CN102296386A (en) * | 2011-08-22 | 2011-12-28 | 山西鸿基科技股份有限公司 | Clearance transmission mechanism for detaching roller of cotton comber |
| CN102528578A (en) * | 2012-01-04 | 2012-07-04 | 陈文龙 | Automatic precise grinding machine for jaw of nail clippers |
| CN102528578B (en) * | 2012-01-04 | 2014-08-27 | 陈文龙 | Automatic precise grinding machine for jaw of nail clippers |
| CN106142027A (en) * | 2015-03-23 | 2016-11-23 | 焦作市歌馨机电设备有限公司 | Interior sheave intermittent rotary workbench |
| CN106142027B (en) * | 2015-03-23 | 2018-12-18 | 焦作市歌馨机电设备有限公司 | Interior sheave intermittent rotary workbench |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN86104457A (en) | The differential speed reducer of gearless | |
| CN2136905Y (en) | Cam star wheel intermittent transmission mechanism | |
| CN2398478Y (en) | Dense bead cycloid steel ball speed reducer | |
| US4563915A (en) | Wobble type axial speed reducer apparatus | |
| CN2315354Y (en) | Cycloidal steel ball speed reducer | |
| US5443428A (en) | Gearless mechanical transmission | |
| CN2725627Y (en) | Oscillating adjustable gear driving device of biphase cam shock wave | |
| CN2353966Y (en) | Same rotation-directional multi-axis out-put driving mechanism | |
| US6212967B1 (en) | Variable gear assembly and method | |
| US5080636A (en) | Intermittent motion drive assembly | |
| CN1048252A (en) | Ball gear | |
| CN2664394Y (en) | Coil winder | |
| CN1851287A (en) | Generalized cycloidal active-tooth transmission | |
| CN1598355A (en) | Generalized dual-cosine moving gear tramsmission device and its design method of engagement pair | |
| CN2075729U (en) | Swing moveable teeth speed reducing machine | |
| CN1044521A (en) | Actuating unit | |
| CN1072476A (en) | Low damping roll bearing | |
| CN1414268A (en) | Planet scale division cam structure | |
| CN1603658A (en) | Plane movable tooth gearing with arbitrary tooth difference | |
| CN86106076A (en) | Oscillatory gearing mechanism | |
| CN1109567A (en) | Gear type stepless speed variator | |
| CN1045849A (en) | Stepless speed variator | |
| CN2660223Y (en) | Energy saving mechanical driving gear | |
| CN2339808Y (en) | Channel-type speed-changing drive bearing | |
| CN85106502A (en) | A kind of one way, heavy-duty decelerator with large single tooth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |