CN105240474B - Crank cranking-block type half-rotating mechanism with unilateral bearing - Google Patents
Crank cranking-block type half-rotating mechanism with unilateral bearing Download PDFInfo
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- CN105240474B CN105240474B CN201510752157.4A CN201510752157A CN105240474B CN 105240474 B CN105240474 B CN 105240474B CN 201510752157 A CN201510752157 A CN 201510752157A CN 105240474 B CN105240474 B CN 105240474B
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- Prior art keywords
- swinging block
- unilateral bearing
- crank
- bull stick
- main shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention discloses a kind of crank cranking-block type half-rotating mechanism with unilateral bearing, and belonging to the technical field of bio-simulation machinery half-rotating mechanism includes half bull stick, moving axis, reverse unilateral bearing, crank, main shaft, flat board swinging block, swinging block axle, positive unilateral bearing and frame；Main shaft, swinging block axle are arranged in frame, the two ends of crank are connected with main shaft and moving axis respectively, moving axis is connected with the centre position of half bull stick, half bull stick is provided with chute along longitudinal direction, flat board swinging block can be slided in chute, flat board swinging block is connected with swinging block axle, and swinging block axle is arranged in frame by positive unilateral bearing.When main shaft drives crank to rotate, half bull stick is produced half way around motion by the constraint of swinging block simultaneously under the drive of moving axis, reverse unilateral bearing at moving axis ensures the kinematic accuracy of half way around component with the positive unilateral bearing at swinging block, and the half-rotating mechanism can produce the needed asymmetric rotation of imitative animal limb movement effects.
Description
Technical field：
The invention belongs to technical field of bio-simulation machinery, and in particular to a kind of crank cranking-block type with unilateral bearing half is made a connection
Structure.
Background technology：
Half-rotating mechanism can produce a kind of special asymmetric rotation, be applied in bionic mechanical research at present.But
Be it is main in these technologies realize that half way around is moved with gear drive, such as Chinese patent ZL200910263070 double straight rod legs
The walking mechanism of walking wheel realizes the asymmetric of working component by the Planetary Gear Transmission or Chain conveyer that are placed in inside pivoted arm
Rotate.The structure of transmission system is more complicated, and part is more, weight is big, is not suitable for, in bionical middle application of flying, proposing to half way around for this
Mechanism carries out the requirement of simplification design.Structure is as simple as possible, and weight small half-rotating mechanism as far as possible is developing half-rotating mechanism
The necessary technology premise of application.Based on traditional crank rocker mechanism in Chinese patent ZL2012103539607, use
Crank is split with swinging block and avoids movement interference, and the uncertainty of motion is avoided using belt trough movable shaft, becomes the reciprocally swinging of connecting rod
Half bull stick as the asymmetric rotation of one direction.Give up the gear drive of complexity completely, significantly realize half-rotating mechanism
Simplification is designed.But belt trough movable shaft causes the little deviation of half way around component motion, and belt trough movable shaft with shoe contact with separating
Structure it is not succinct enough, not yet reach the purpose of preferable simplification design.
The content of the invention：
There is provided a kind of song simple in construction with unilateral bearing for above-mentioned technical problem of the invention for prior art presence
Handle cranking-block type half-rotating mechanism.The present invention proposes the belt trough movable shaft without using structure slightly complicated, and with the list of two ad-hoc locations
The scheme of more brief half-rotating mechanism is constituted to bearing and minimum movement parts.It is extremely simple so as to obtain structure, only three
The most simple half-rotating mechanism of moving link；And unilateral bearing ensure that the precision and stability of half-rotating mechanism motion, greatly reduce
Movement warp.
Crank cranking-block type half-rotating mechanism provided by the present invention with unilateral bearing include half bull stick 1, chute 2, moving axis 3,
Reverse unilateral bearing 4, crank 5, main shaft 6, flat board swinging block 7, swinging block axle 8, positive unilateral bearing 9 and frame 10.Main shaft 6 and swinging block
Axle 8 is arranged in frame 10, and the two ends of crank 5 are connected with main shaft 6 and moving axis 3 respectively, the axle in the axle center of main shaft 6 to swinging block axle 8
The distance of the heart is equal with the distance in axle center to the axle center of moving axis 3 of main shaft 6, and moving axis 3 passes through the reverse bull stick 1 of unilateral bearing 4 and half
Centre position connection, have the chute 2 along longitudinal direction on half bull stick 1, flat board swinging block 7 is slided in chute 2, and flat board swinging block 7 is with shaking
Block axle 8 is connected, and swinging block axle 8 is arranged in frame 10 by positive unilateral bearing 9.
When main shaft 6 drives crank 5 to rotate, half bull stick 1 is under the drive of moving axis 3 simultaneously by the constraint of flat board swinging block 7
Produce the reverse unilateral bearing 4 at asymmetric rotation, moving axis 3 and ensure half bull stick 1 with the positive unilateral bearing 9 at swinging block axle 8
Kinematic accuracy, and when moving axis 3 and the position of swinging block axle 8 overlap, it is ensured that the Kinematic determination of half bull stick 1.
Crank 5 is arranged in frame 10 by main shaft 6, and swinging block axle 8 is arranged in frame 10 by positive unilateral bearing 9,
Swinging block axle 8 must be equal with the distance of moving axis 3 with main shaft 6 on crank 5 with the distance of main shaft 6, and flat board swinging block 7 is consolidated with swinging block axle 8
Even, reverse unilateral bearing 4 is placed on the centre position of half bull stick 1, and moving axis 3 is connected by reverse unilateral bearing 4 with half bull stick 1,
Chute 2 along longitudinal direction is set on half bull stick 1, and flat board swinging block 7 can be slided in chute 2.
When main shaft 6 drives crank 5 to rotate, half bull stick 1 is driven to move by moving axis 3, in the restriction of reverse unilateral bearing 4
Under, the rotation direction of the opposing cranks 5 of half bull stick 1 can only be opposite with the rotation direction of crank 5；Simultaneously because the chute 2 of half bull stick 1
Slide, produced and the rotation direction phase of crank 5 in the collective effect lower half bull stick 1 of crank 5 and flat board swinging block 7 on flat board swinging block 7
Same but angular speed only has 1/2nd asymmetric rotation of crank 5, the limitation flat board of swinging block axle 8 equipped with positive unilateral bearing 9
Swinging block 7 can only be identical with crank 5 with the rotation direction of the relative frame 10 of half bull stick 1.Reverse unilateral bearing 4 and positive unilateral bearing
9 constrain half bull stick 1 from two different directions, half bull stick 1 is moved according to theory locus, effectively eliminate due to
The movement warp that Mechanism Clearance or extraneous interference are caused.
The present invention has following technological merit：Structure is extremely simple, only three moving links；Unilateral bearing ensure that machine
The precision and stability of structure motion.
Brief description of the drawings：
Fig. 1 is the main structure diagram of the crank cranking-block type half-rotating mechanism of the invention with unilateral bearing；
Fig. 2 is the overlooking the structure diagram of the crank cranking-block type half-rotating mechanism of the invention with unilateral bearing.
In figure：1st, half bull stick；2nd, chute；3rd, moving axis；4th, reverse unilateral bearing；5th, crank；6th, main shaft；7th, flat board swinging block；
8th, swinging block axle；9th, positive unilateral bearing；10th, frame.
Embodiment：
As shown in figure 1, the crank cranking-block type half-rotating mechanism of the invention with unilateral bearing includes half bull stick 1, chute 2, moving axis
3rd, reverse unilateral bearing 4, crank 5, main shaft 6, flat board swinging block 7, swinging block axle 8, positive unilateral bearing 9 and frame 10.Main shaft 6 is with shaking
Block axle 8 is arranged in frame 10, and the distance and main shaft 6 on crank 5 and moving axis 3 of main shaft 6 and swinging block axle 8 are must assure that during installation
Apart from equal, and swinging block axle 8 uses positive unilateral bearing 9 to be arranged in frame 10.Reverse unilateral bearing 4 is placed on half bull stick
1 centre position, moving axis 3 is connected by reverse unilateral bearing 4 with half bull stick 1.Chute 2 along longitudinal direction is set on half bull stick 1,
Flat board swinging block 7 can be slided in chute 2, and flat board swinging block 7 is connected with swinging block axle 8.
When main shaft 6 drives crank 5 to rotate, half bull stick 1 is driven to move by moving axis 3, in the restriction of reverse unilateral bearing 4
Under, the rotation direction of the opposing cranks 5 of half bull stick 1 can only be opposite with the rotation direction of crank 5；Simultaneously because the chute 2 of half bull stick 1
Slide, produced and the rotation direction phase of crank 5 in the collective effect lower half bull stick 1 of crank 5 and flat board swinging block 7 on flat board swinging block 7
Same but angular speed only has 1/2nd asymmetric rotation of crank 5.Due to being equipped with positive unilateral bearing 9 on swinging block axle 8, therefore
Limiting flat board swinging block 7 can only be identical with crank 5 with the rotation direction of the relative frame 10 of half bull stick 1.Reverse unilateral bearing 4 and forward direction
Unilateral bearing 9 constrains half bull stick 1 from two different directions, half bull stick 1 is moved according to theory locus, effectively disappears
Except the movement warp caused due to Mechanism Clearance or extraneous interference.
Claims (1)
1. a kind of crank cranking-block type half-rotating mechanism with unilateral bearing, it is characterised in that the half-rotating mechanism includes half bull stick (1), slided
Groove (2), moving axis (3), reverse unilateral bearing (4), crank (5), main shaft (6), flat board swinging block (7), swinging block axle (8), forward direction are unidirectional
Bearing (9) and frame (10)；The main shaft (6), swinging block axle (8) are arranged in the frame (10), the two ends of the crank (5)
Be connected respectively with the main shaft (6) and the moving axis (3), the axle center of the main shaft (6) to the axle center of the swinging block axle (8) away from
Equal with a distance from axle center from the axle center with the main shaft (6) to the moving axis (3), the moving axis (3) passes through the reverse list
It is connected to bearing (4) with the centre position of half bull stick (1), half bull stick (1) is provided with the chute (2), institute along longitudinal direction
Stating flat board swinging block (7) can slide in the chute (2), and the flat board swinging block (7) is connected with the swinging block axle (8), described
Swinging block axle (8) is arranged in the frame (10) by the positive unilateral bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510752157.4A CN105240474B (en) | 2015-11-04 | 2015-11-04 | Crank cranking-block type half-rotating mechanism with unilateral bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510752157.4A CN105240474B (en) | 2015-11-04 | 2015-11-04 | Crank cranking-block type half-rotating mechanism with unilateral bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105240474A CN105240474A (en) | 2016-01-13 |
| CN105240474B true CN105240474B (en) | 2017-09-22 |
Family
ID=55038244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510752157.4A Active CN105240474B (en) | 2015-11-04 | 2015-11-04 | Crank cranking-block type half-rotating mechanism with unilateral bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105240474B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108203870B (en) * | 2016-12-16 | 2021-06-01 | 合肥海尔洗衣机有限公司 | Washing machine tray seat component and washing machine |
| CN106678312B (en) * | 2017-01-06 | 2018-10-23 | 安徽工业大学 | A kind of half-rotating mechanism of dead axle V belt translation |
| CN107355521B (en) * | 2017-07-05 | 2019-05-28 | 上海宇航系统工程研究所 | A kind of high-precision rotary positioning mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5025147B2 (en) * | 2006-03-13 | 2012-09-12 | 株式会社浅間製作所 | Movable decoration device for gaming machines |
| CN201461885U (en) * | 2009-07-31 | 2010-05-12 | 杨智勇 | Decelerator |
| CN101708745B (en) * | 2009-12-16 | 2011-11-09 | 安徽工业大学 | Double straight rod leg walking wheel |
| CN102837751B (en) * | 2012-09-21 | 2014-10-08 | 安徽工业大学 | Belt trough movable shaft type half-rotation mechanism |
| CN104054431B (en) * | 2014-06-18 | 2017-03-08 | 华中农业大学 | A kind of automatic-lifting type pit-picker |
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2015
- 2015-11-04 CN CN201510752157.4A patent/CN105240474B/en active Active
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| Publication number | Publication date |
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| CN105240474A (en) | 2016-01-13 |
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