CN104140056B - Cam hoisting mechanism - Google Patents
Cam hoisting mechanism Download PDFInfo
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- CN104140056B CN104140056B CN201410388089.3A CN201410388089A CN104140056B CN 104140056 B CN104140056 B CN 104140056B CN 201410388089 A CN201410388089 A CN 201410388089A CN 104140056 B CN104140056 B CN 104140056B
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- eccentric wheel
- stop pin
- pin
- resiliency urged
- acute angle
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- 230000001154 acute effect Effects 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
Abstract
The invention provides a cam hoisting mechanism. The cam hoisting mechanism is used for controlling the hoisting of an object (9) and comprises a rack (1), an eccentric wheel (2), a locking pin (3), an elastic push pin (4) and a limiting column (5), wherein the eccentric wheel (2) is totally in a circular shape and is eccentrically provided with a driving rotating shaft (21); when the circle center of the circular shape is located above the driving rotating shaft (21) and a vertical relation is formed between the circular shape and the driving rotating shaft (21), the eccentric wheel (2) lifts the object (9) to a high position; a locking hole (23) which is concave inwards in the radial direction is further formed in the circumference of the eccentric wheel (2) and is matched with the upper end of the locking pin (3); and when the eccentric wheel (2) lifts the object (9) to the high position, the locking hole (23) is formed under the driving rotating shaft (21) and a vertical relation is formed between the locking hole (23) and the driving rotating shaft (21).
Description
Technical field
The application relates to a kind of lifting mechanism, is specially a kind of cam lifting mechanism.
Background technology
The higher pair mechanism that cam mechanism is made up of cam, driven member and frame three basic building blocks.Cam is a component with curved profile or groove, is generally driving link, makes constant speed gyroscopic movement or linear reciprocating motion.
Contact with camb contour, and transferring power and the component realizing the predetermined characteristics of motion, generally do linear reciprocating motion or swing, be called driven member, or the object be lifting.
Cam mechanism basic characteristics are in the application to make driven member obtain the more complicated characteristics of motion.Because the characteristics of motion of driven member depends on cam profile curve, so when applying, as long as the profilograph designing cam according to the characteristics of motion of driven member is just passable.
Cam mechanism is widely used in various automation, instrument and maneuver control device.Why cam mechanism obtains so is applied widely, and mainly because cam mechanism can realize the movement needs of various complexity, and structure is simple, compact.Cam lifting mechanism has the simple and reliable advantage of operation, needs to be widely used in the device controlling to be elevated at some.
Due to the higher pair performance of cam, often need to lock its position.And the motion conversion between the out of phase of cam, often need to apply active drive power.Apply active drive power continually, be disadvantageous for driver train.And when for driving power device disappearance or fault, then become difficulty in a kind of phase place of cam to the transfer of another phase place and arrange infeasible.
Summary of the invention
A kind of cam lifting mechanism of the present invention, it is when being shifted to another cam phase by a kind of cam phase, and without the need to restarting or applying active drive power, and the phase position of cam is stablized, stress equalization.
According to the present invention, a kind of cam lifting mechanism, it is for controlling the lifting of object, and comprise frame, eccentric wheel, stop pin, resiliency urged pin and limited post, described eccentric shape is as general as round-shaped, and be provided with drive shaft prejudicially, when the described round-shaped center of circle be positioned at the top of described drive shaft and relation vertical with its formation time, described object is risen to a high position by described eccentric wheel; Described eccentric periphery is also provided with radially-inwardly recessed lock hole, lock hole is used for coordinating with the upper end of stop pin, when described object is risen to a high position by described eccentric wheel, lock hole is positioned at the below of described drive shaft and relation vertical with its formation; The lower end of stop pin is connected with stop pin spring, and under the top pressure effect of stop pin spring, stop pin can stretch into described lock hole when described object is risen to a high position by described eccentric wheel thus lock eccentric wheel; The lower end of stop pin also couples with latch-release pull-down member, and latch-release pull-down member is used for stop pin is drop-down and contact locks;
Eccentric wheel is also provided with acute angle shape part, under described object being risen to high-order state at described eccentric wheel, down, and left surface is vertical direction to described acute angle shape part tip, right flank and described eccentric outer circumference surface tangent, and intersect acute angle with left surface; The described left surface of acute angle shape part is the drive surface for engaging with the right-hand member of resiliency urged pin, and described right flank is the carrying surface being used for carrying described object when described object is down to low level by described eccentric wheel;
The right-hand member of resiliency urged pin is rounded shape, and left end is connected with promotion spring, and the rounded shape of described right-hand member is used for engaging with drive surface, the position, middle part of stop pin is fixedly installed voussoir, and the upper side of described voussoir is tapered ramp, and described tapered ramp is parallel to the axis direction of described drive shaft, and acutangulates with horizontal surface, resiliency urged pin is near its right-hand member, the inclined-plane notch inserted for described voussoir is provided with between its right-hand member and left end, the left surface of described inclined-plane notch is the engagement ramp for coordinating with described tapered ramp, when stop pin is in the lock-out state stretched in described lock hole, stop pin is coordinated with the engagement ramp of resiliency urged pin by described tapered ramp and resiliency urged pin is pressed to left side simultaneously against promoting spring, thus it is moved right lock, now, between the right-hand member of resiliency urged pin and the drive surface of acute angle shape part, there is gap and do not engage,
When latch-release pull-down member applies transient state effect to stop pin, and when it is drop-down, the upper end of stop pin departs from from eccentric lock hole, meanwhile, voussoir to exit and tapered ramp is disengaged with engagement ramp from inclined-plane notch, thus, the right-hand member of resiliency urged pin engages the described drive surface of acute angle shape part, eccentric wheel is rotated counterclockwise, and thus, object is down to low level gradually; Described limited post is connected to frame by spacing elastic element, and when eccentric wheel rotates counterclockwise and makes object be down to low level, horizontally, and the outer end of carrying surface contacts with limited post thus carries out spacing the carrying surface of acute angle shape part;
When needs make object rise to a high position from described low level, drive shaft drives eccentric wheel to rotate clockwise, in the process, slide along eccentric circumferential outer surface in the upper end of stop pin under the top pressure effect of its stop pin spring, and the drive surface of acute angle shape part can turn to and be combined with the right-hand member of resiliency urged pin, thus gradually it is pushed up pressure to the left; When the upper end of stop pin starts to fall into lock hole, stop pin moves straight up in the top of stop pin spring pressure entirety, and now, voussoir can insert the inclined-plane notch of resiliency urged pin thus be promoted left further by resiliency urged pin; Realize the locking of object in a high position thus.
By such scheme, while object being risen to a high position by low level at lifting mechanism, the spring members of telescoping mechanism be have accumulated a large amount of potential energy; When needs are changed to low level by a high position, utilize the elastic potential energy drive cam put aside to rotate to the direction expected, utilize gravitional force afterwards and be down to low level voluntarily.And, by lockout mechanism, while locking cam upper level position, also described elastic telescopic mechanism is locked, avoid elastic force to be applied directly to cam mechanism, therefore avoid and affect the stability of cam mechanism in a high position.Utilize acute angle shape part, while being used as to coordinate with described telescoping mechanism the drive surface contacted, also when low level as carrying surface, the crank caused with the skew of object contact position that the eccentric setting avoiding cam mechanism causes.By limiting component, both ensure that the horizontal position after cam rotation, served again the effect of stable low-end trim.
Accompanying drawing explanation
Fig. 1 is the diagram of cam mechanism when object being risen to a high position;
Fig. 2 is the diagram of cam mechanism when object being down to low level of Fig. 1;
Fig. 3 is the structural front view of resiliency urged pin;
Fig. 4 is the graphic upward view of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, by instantiation, the present invention is described in detail.
A kind of cam lifting mechanism, it is for controlling the lifting of object 9, and comprise frame 1, eccentric wheel 2, stop pin 3, resiliency urged pin 4 and limited post 5, the shape of described eccentric wheel 2 is as general as round-shaped, and be provided with drive shaft 21 prejudicially, when the described round-shaped center of circle be positioned at the top of described drive shaft 21 and relation vertical with its formation time, described object 9 is risen to a high position by described eccentric wheel 2; The periphery of described eccentric wheel 2 is also provided with radially-inwardly recessed lock hole 23, lock hole 23 is for coordinating with the upper end of stop pin 3, when described object 9 is risen to a high position by described eccentric wheel 2, lock hole 23 is positioned at the below of described drive shaft 21 and relation vertical with its formation; The lower end of stop pin 3 is connected with stop pin spring 32, and under the top pressure effect of stop pin spring 32, stop pin 3 can stretch into described lock hole 23 when described object 9 is risen to a high position by described eccentric wheel 2 thus lock eccentric wheel 2; The lower end of stop pin 3 also couples with latch-release pull-down member 33, latch-release pull-down member 33 for by drop-down for stop pin 3 and contact locking;
Eccentric wheel 2 is also provided with acute angle shape part 22, under described object 9 being risen to high-order state at described eccentric wheel 2, down, and left surface is vertical direction to described acute angle shape part 22 tip, the outer circumference surface of right flank and described eccentric wheel 2 is tangent, and intersects acute angle with left surface; The described left surface of acute angle shape part 22 is the drive surface for engaging with the right-hand member of resiliency urged pin 4, and described right flank is the carrying surface being used for carrying described object 9 when described object 9 is down to low level by described eccentric wheel 2;
The right-hand member of resiliency urged pin 4 is rounded shape, and left end is connected with promotion spring 41, and the rounded shape of described right-hand member is used for engaging with drive surface, the position, middle part of stop pin 3 is fixedly installed voussoir 31, and the upper side of described voussoir 31 is tapered ramp 311, and described tapered ramp 311 is parallel to the axis direction of described drive shaft 21, and acutangulates with horizontal surface, resiliency urged pin 4 is near its right-hand member, the inclined-plane notch 43 inserted for described voussoir 31 is provided with between its right-hand member and left end, the left surface of described inclined-plane notch 43 is the engagement ramp 44 for coordinating with described tapered ramp 311, when stop pin 3 is in the lock-out state stretched in described lock hole 23, stop pin 3 is coordinated with the engagement ramp 44 of resiliency urged pin 4 by described tapered ramp 311 and resiliency urged pin 4 is pressed to left side simultaneously against promoting spring 41, thus it is moved right lock, now, between the right-hand member of resiliency urged pin 4 and the drive surface of acute angle shape part 22, there is gap and do not engage,
When latch-release pull-down member 33 pairs of stop pins 3 apply transient state effect, and when it is drop-down, the upper end of stop pin 3 departs from from the lock hole 23 of eccentric wheel 2, meanwhile, voussoir 31 to exit and tapered ramp 311 is disengaged with engagement ramp 44 from inclined-plane notch 43, thus, the right-hand member of resiliency urged pin 4 engages the described drive surface of acute angle shape part 22, eccentric wheel 2 is rotated counterclockwise, and thus, object 9 is down to low level gradually; Described limited post 5 is connected to frame 1 by spacing elastic element 51, and when eccentric wheel 2 rotates counterclockwise and makes object 9 be down to low level, horizontally, and the outer end of carrying surface contacts with limited post 5 thus carries out spacing the carrying surface of acute angle shape part 22;
When needs make object 9 rise to a high position from described low level, drive shaft 21 drives eccentric wheel 2 to rotate clockwise, in the process, the circumferential outer surface of upper end along eccentric wheel 2 under the top pressure effect of its stop pin spring 32 of stop pin 3 slides, and the drive surface of acute angle shape part 22 can turn to and be combined with the right-hand member of resiliency urged pin 4, thus gradually it is pushed up pressure to the left; When the upper end of stop pin 3 starts to fall into lock hole 23, stop pin 3 moves straight up in the top of stop pin spring 32 pressure entirety, and now, voussoir 31 can insert the inclined-plane notch 43 of resiliency urged pin 4 thus be promoted left further by resiliency urged pin 4; Realize the locking of object 9 in a high position thus.
Wherein, the face relative with engagement ramp 44 of the inclined-plane notch 43 of resiliency urged pin 4 is vertical wall 42, and itself and engagement ramp 44 interval separate thus form described inclined-plane notch 43 between engagement ramp 44 and vertical wall 42.
Wherein, latch-release pull-down member 33 is manual pulling mechanism.
By with upper type, those skilled in the art can make various change according to mode of operation within the scope of the invention.
Claims (3)
1. a cam lifting mechanism, it is for controlling the lifting of object (9), and comprise frame (1), eccentric wheel (2), stop pin (3), resiliency urged pin (4) and limited post (5), the shape of described eccentric wheel (2) is as general as round-shaped, and be provided with drive shaft (21) prejudicially, when the described round-shaped center of circle be positioned at the top of described drive shaft (21) and relation vertical with its formation time, described object (9) is risen to a high position by described eccentric wheel (2); The periphery of described eccentric wheel (2) is also provided with radially-inwardly recessed lock hole (23), lock hole (23) is for coordinating with the upper end of stop pin (3), when described object (9) is risen to a high position by described eccentric wheel (2), lock hole (23) is positioned at the below of described drive shaft (21) and relation vertical with its formation; The lower end of stop pin (3) is connected with stop pin spring (32), under the top pressure effect of stop pin spring (32), stop pin (3) can stretch into described lock hole (23) when described object (9) is risen to a high position by described eccentric wheel (2) thus lock eccentric wheel (2); The lower end of stop pin (3) also couples with latch-release pull-down member (33), and latch-release pull-down member (33) is for by drop-down for stop pin (3) and unlock;
Eccentric wheel (2) is also provided with acute angle shape part (22), under described object (9) being risen to high-order state at described eccentric wheel (2), described acute angle shape part (22) tip down, and left surface is vertical direction, the outer circumference surface of right flank and described eccentric wheel (2) is tangent, and intersects acute angle with left surface; The described left surface of acute angle shape part (22) is the drive surface for engaging with the right-hand member of resiliency urged pin (4), and described right flank is for carrying the carrying surface of described object (9) when described object (9) is down to low level by described eccentric wheel (2);
The right-hand member of resiliency urged pin (4) is rounded shape, and left end is connected with promotion spring (41), and the rounded shape of described right-hand member is used for engaging with drive surface, the position, middle part of stop pin (3) is fixedly installed voussoir (31), the upper side of described voussoir (31) is tapered ramp (311), described tapered ramp (311) is parallel to the axis direction of described drive shaft (21), and acutangulates with horizontal surface, resiliency urged pin (4) is near its right-hand member, the inclined-plane notch (43) inserted for described voussoir (31) is provided with between its right-hand member and left end, the left surface on described inclined-plane notch (43) is the engagement ramp (44) for coordinating with described tapered ramp (311), when stop pin (3) is in the lock-out state stretched in described lock hole (23), stop pin (3) is coordinated with the engagement ramp (44) of resiliency urged pin (4) by described tapered ramp (311) and resiliency urged pin (4) is pressed to left side simultaneously against promoting spring (41), thus it is moved right lock, now, between the right-hand member of resiliency urged pin (4) and the drive surface of acute angle shape part (22), there is gap and do not engage,
When latch-release pull-down member (33) applies transient state effect to stop pin (3), and when it is drop-down, the upper end of stop pin (3) departs from from the lock hole (23) of eccentric wheel (2), simultaneously, voussoir (31) to exit and tapered ramp (311) is disengaged with engagement ramp (44) from inclined-plane notch (43), thus, the right-hand member of resiliency urged pin (4) engages the described drive surface of acute angle shape part (22), eccentric wheel (2) is rotated counterclockwise, thus, object (9) is down to low level gradually; Described limited post (5) is connected to frame (1) by spacing elastic element (51), when eccentric wheel (2) rotates counterclockwise and makes object (9) be down to low level, horizontally, and the outer end of carrying surface contacts with limited post (5) thus carries out spacing the carrying surface of acute angle shape part (22);
When needs make object (9) rise to a high position from described low level, drive shaft (21) drives eccentric wheel (2) to rotate clockwise, in the process, slide along the circumferential outer surface of eccentric wheel (2) in the upper end of stop pin (3) under the top pressure effect of its stop pin spring (32), and the drive surface of acute angle shape part (22) can turn to and be combined with the right-hand member of resiliency urged pin (4), thus gradually it is pushed up pressure to the left; When the upper end of stop pin (3) starts to fall into lock hole (23), stop pin (3) moves straight up in the top of stop pin spring (32) pressure entirety, now, voussoir (31) can insert the inclined-plane notch (43) of resiliency urged pin (4) thus be promoted left further by resiliency urged pin (4); Realize the locking of object (9) in a high position thus.
2. cam lifting mechanism as claimed in claim 1, wherein, the face relative with engagement ramp (44) of the inclined-plane notch (43) of resiliency urged pin (4) is vertical wall (42), and itself and engagement ramp (44) interval separate thus form described inclined-plane notch (43) between engagement ramp (44) and vertical wall (42).
3. cam lifting mechanism as claimed in claim 1, wherein, latch-release pull-down member (33) is manual pulling mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388089.3A CN104140056B (en) | 2014-08-08 | 2014-08-08 | Cam hoisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388089.3A CN104140056B (en) | 2014-08-08 | 2014-08-08 | Cam hoisting mechanism |
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| Publication Number | Publication Date |
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| CN104140056A CN104140056A (en) | 2014-11-12 |
| CN104140056B true CN104140056B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410388089.3A Active CN104140056B (en) | 2014-08-08 | 2014-08-08 | Cam hoisting mechanism |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105196267B (en) * | 2015-10-21 | 2017-07-28 | 安徽江淮汽车集团股份有限公司 | Engine mounting stand |
| CN110615381B (en) * | 2019-09-17 | 2020-07-03 | 厦门大学 | Multipurpose material handling industrial robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB379682A (en) * | 1931-04-16 | 1932-08-16 | Jean Gobin Dit Daude | Improvements in or relating to punching or drilling and rivetting machines |
| IT1246701B (en) * | 1990-07-11 | 1994-11-26 | Nuovopignone Ind Meccaniche Ef | IMPROVED CONTROL DEVICE FOR HIGH SPEED ROTARY DOBBIES |
| CN101368494A (en) * | 2008-09-08 | 2009-02-18 | 芜湖杰锋汽车动力系统有限公司 | Variable air valve stroke mechanism of car engine and its control method |
| CN201280417Y (en) * | 2008-09-23 | 2009-07-29 | 张广廷 | Elevation apparatus for cam type material box |
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Owner name: SHENLING ELECTRIC MANUFACTURING CO., LTD., HAIAN Free format text: FORMER OWNER: CHUN'AN WANG'AO MACHINERY TECHNOLOGY CO., LTD. Effective date: 20150424 |
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Inventor after: Li Shen Inventor before: Wang Tao |
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Free format text: CORRECT: INVENTOR; FROM: WANG TAO TO: LI SHEN Free format text: CORRECT: ADDRESS; FROM: 311701 HANGZHOU, ZHEJIANG PROVINCE TO: 226602 NANTONG, JIANGSU PROVINCE |
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Effective date of registration: 20150424 Address after: 226602, No. 88, Zhenhai South Road, Haian County, Nantong, Jiangsu, Haian Applicant after: Haian Shenling Electrical Appliance Manufacturing Co., Ltd. Address before: Jin Feng Cun Tang Fan Jin Feng Xiang Chunan County of Hangzhou City, Zhejiang Province, No. 57 311701 Applicant before: CHUN'AN WANG'AO MACHINERY SCIENCE & TECHNOLOGY CO., LTD. |
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Address after: 226602 No. 88 Hainan Road, Haian Town, Haian City, Nantong City, Jiangsu Province Patentee after: Haian Shenling Electrical Appliance Manufacturing Co., Ltd. Address before: 226602, No. 88, Zhenhai South Road, Haian County, Nantong, Jiangsu, Haian Patentee before: Haian Shenling Electrical Appliance Manufacturing Co., Ltd. |
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