CN202729225U - Two-degree-of-freedom differential reciprocating push device - Google Patents
Two-degree-of-freedom differential reciprocating push device Download PDFInfo
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- CN202729225U CN202729225U CN 201220336081 CN201220336081U CN202729225U CN 202729225 U CN202729225 U CN 202729225U CN 201220336081 CN201220336081 CN 201220336081 CN 201220336081 U CN201220336081 U CN 201220336081U CN 202729225 U CN202729225 U CN 202729225U
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- wheel
- belt
- gear
- pinion carrier
- satellite gear
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Abstract
The utility model discloses a two-degree-of-freedom differential reciprocating push device. The push device comprises a rack, and further comprises a planetary gear train mechanism, a driving mechanism and a cam link mechanism that are arranged on the rack, wherein the planetary gear train mechanism comprises a planetary carrier and is connected with the driving mechanism by the planetary carrier; a synchronous belt differential mechanism is arranged at one end of a central shaft of a planetary gear; the cam link mechanism is arranged at the other end of the central shaft of the planetary gear; the cam link mechanism is connected with the planetary carrier; and a power output end of the synchronous belt differential mechanism is connected with a pushing hand mechanism. According to the two-degree-of-freedom differential reciprocating push device, each moving member directly converts input rotary motion to reciprocating motion in a rotary motion form to avoid using a guide rail and a slide block to directly drive goods, and the push device can operate stably at a higher speed and provides convenience for ensuring packaging quality and increasing packaging speed of packaging machinery.
Description
Technical field
The utility model relates to the pusher technical field in the light industry equipment, the particularly reciprocal pusher of a kind of two-freedom differential type.
Background technology
Pusher is the vitals in the package packing machine.High-speed packaging machinery is higher to the job requirement of pusher; In the situation that high-speed cruising requires pusher strictly with straight-line form article to be pushed next station; And need to dodge this straight-line trajectory during return, even also to finish some simple packing and foldings actions, guarantee not damage simultaneously connection with wrapping of piece.
High-speed packaging machinery running velocity is high, pushing speed can reach 500 beats/mins, inertial acceleration is large, and the force of inertia of package packing machine when requiring pusher contact packing article is as far as possible little, with the anti-tamper connection with wrapping of piece, so it is significant to improving the package packing machine performance to develop the pusher that is fit to high-speed cruising.
The path of motion of pusher generally is the two-freedom plane motion that is formed by stacking by straight reciprocating motion and another motion.In traditional machinery, generally adopt slider-crank mechanism to produce linear reciprocating motion, although its mechanism is comparatively simple, but because its crank motion will lean on the relative sliding of slide block and guide rail to guarantee, need higher working accuracy, setting accuracy and larger mechanism space, and be prone to the problems such as guide rail and slider wear; In addition, have certain problem when slider-crank mechanism is applied to high speed machine, its force of inertia is larger, is difficult to realize balance, easily causes the problems such as mechanical vibration and noise, reduces mechanical efficiency and service life.
The utility model content
Goal of the invention of the present utility model is for the technical deficiency of the pusher of existing high-speed packaging machinery, provides a kind of two-freedom differential type reciprocal pusher.
For achieving the above object, the technical solution adopted in the utility model is:
Provide a kind of two-freedom differential type reciprocal pusher, comprise frame and be located at planetary wheel mechanism on the frame and driver train, cam link mechanism; Described planetary wheel mechanism comprises pinion carrier, and described planetary wheel mechanism is connected with driver train by pinion carrier; Center shaft one end of described satellite gear is provided with the Timing Belt modified roll mechanism, and its other end is provided with cam link mechanism; In addition, described cam link mechanism also is connected with pinion carrier; The clutch end of described Timing Belt modified roll mechanism is connected with pushing handle mechanisms.
Preferably, described planetary wheel mechanism is gear transmission planetary wheel mechanism or toothed belt transmission planetary wheel mechanism.
Preferably, described gear transmission planetary wheel mechanism comprises pinion carrier and is located at sun wheel, satellite gear, idle pulley on the pinion carrier; Wherein, the center shaft of described sun wheel passes pinion carrier and is fixed on the frame; Center shaft one end of described satellite gear is connected with the Timing Belt modified roll mechanism, and its other end is connected with cam link mechanism; Described idle pulley meshes with sun wheel, satellite gear respectively, thereby drives the rotation of satellite gear; And the number of teeth of described satellite gear be sun wheel the number of teeth 1/2.
Preferably, described toothed belt transmission planetary wheel mechanism comprises pinion carrier and is located at sun wheel, satellite gear, tension wheel on the pinion carrier; Wherein, the center shaft of described sun wheel passes pinion carrier and is fixed on the frame; Center shaft one end of described satellite gear is connected with the Timing Belt modified roll mechanism, and its other end is connected with cam link mechanism; Sun wheel and satellite gear are synchronous pulley, and sun wheel drives satellite gear by Timing Belt, and described tension wheel is pressed on the Timing Belt; And the number of teeth of described satellite gear be sun wheel the number of teeth 1/2.
Preferably, for ease of installing with attractive in appearance, be provided with U-shaped incision tract in the middle of the described pinion carrier, described incision tract is used for installing sun wheel, satellite gear and idle pulley; Or described incision tract is used for installing sun wheel, satellite gear and tension wheel.
Preferably, described driver train comprises the first gear, the second gear and power input shaft; Described pinion carrier and the engagement of the first gear, described the first gear and the engagement of the second gear; Described the second gear is connected with power input shaft, and described power take-off shaft is connected with external power source.
Preferably, described Timing Belt modified roll mechanism comprises connecting rod and places connecting rod interior Timing Belt, the first belt wheel, the second belt wheel and tension wheel; Described the first belt wheel is connected with the center shaft of satellite gear, and this first belt wheel can rotate with respect to satellite gear or connecting rod; Described the first belt wheel, the second belt wheel connect by Timing Belt, and described tension wheel is pressed on the Timing Belt, and the number of teeth of described the first belt wheel be the second belt wheel the number of teeth 1/2, described the second belt wheel wheel footpath is greater than the first belt wheel; Described the second belt wheel rotates relative to connecting rod under the driving of the first belt wheel, and described the second belt wheel one end is connected with pushing handle mechanisms; The bar length of described connecting rod equals the width between centers of sun wheel and satellite gear.
Preferably, attractive in appearance for ease of being installed on, described connecting rod is hollow shape, and described Timing Belt, the first belt wheel, the second belt wheel and tension wheel are arranged in the connecting rod.
Preferably, described cam link mechanism comprises plane groove cam and quadric linkage; Described quadric linkage comprises the first bar, rocking bar, the 3rd bar and crank; Described the first bar one end is contained on the pinion carrier, and the other end is connected with an end of rocking bar, and the other end of described rocking bar is connected with an end of the 3rd bar, and an end of the other end of described the 3rd bar and crank is hinged, and the other end of described crank is connected with the satellite gear center shaft; Described plane groove cam is contained on the frame; Described rocking bar is provided with roller, the corresponding guide rail that is provided with for the roller motion of described plane groove cam.
Preferably, described pushing handle mechanisms comprises pushing hands, and the power intake of described pushing hands is connected with the clutch end of the second belt wheel center shaft, and the clutch end of described pushing hands is provided with spacer, and the goods that described spacer is used for pushing is located.
The utility model has following beneficial effect with respect to prior art:
1) the reciprocal pusher of the utility model two-freedom differential type, compared with the crank block pusher, structure is compacter, and force of inertia is little; Simultaneously, the utility model has used synchronous belt drive mechanism, can reduce better vibration and the noise of machinery.
2) the reciprocal pusher of the utility model two-freedom differential type, each moving member is converted into crank motion with rotatablely moving of directly will inputting of the form that rotatablely moves, and avoids using guide rail and slide block directly to drive goods; Can be under higher speed smooth operation, this has very great help at aspects such as guaranteeing packaging quality and raising package speed to package packing machine.
Description of drawings
Fig. 1 is the front elevation of the reciprocal pusher of the utility model two-freedom differential type;
Fig. 2 is the graphics of embodiment 1;
Fig. 3 is the graphics of embodiment 2;
Fig. 4 is that embodiment 1 is along the cutaway view of A-A section among Fig. 1;
Fig. 5 is that embodiment 2 is along the cutaway view of A-A section among Fig. 1;
Fig. 6 is the part sectional view along B-B section among Fig. 4 or Fig. 5;
Fig. 7 is the cutaway view of C-C section among the embodiment 1;
Fig. 8 is the cutaway view of D-D section among the embodiment 2;
Fig. 9 is the cutaway view along E-E section among Fig. 4 or Fig. 5;
Figure 10 is the fundamental diagram of planetary wheel mechanism;
Figure 11 is that small pulley is with respect to the characteristics of motion trend map of pinion carrier.
The specific embodiment
Below in conjunction with the drawings and specific embodiments utility model purpose of the present utility model is described in further detail, embodiment can not give unnecessary details one by one at this, but therefore embodiment of the present utility model is not defined in following examples.Unless stated otherwise, material and the job operation of the utility model employing are the art conventional material and job operation.
Shown in Fig. 1,2,4,6,7,9, the reciprocal pusher of a kind of two-freedom differential type comprises frame 1 and is located at planetary wheel mechanism on the frame 1 and driver train, cam link mechanism.Planetary wheel mechanism comprises pinion carrier 2, and planetary wheel mechanism is connected with driver train by pinion carrier 2.
The satellite gear center is hollow area 8, is used for mounting center axle 6, and these center shaft two ends all stretch out in this satellite gear.Center shaft 6 other ends of satellite gear are provided with the Timing Belt modified roll mechanism, and the clutch end of Timing Belt modified roll mechanism is connected with pushing handle mechanisms.
The other end of the center shaft 6 of satellite gear is provided with cam link mechanism; In addition, described cam link mechanism also is connected with pinion carrier 2.
Planetary wheel mechanism comprises the gear transmission planetary wheel mechanism.The gear transmission planetary wheel mechanism comprises pinion carrier and is located at sun wheel 3 on the pinion carrier, satellite gear 5 and idle pulley 4.Wherein, the center shaft 22 of the sun wheel hollow area 33 of passing pinion carrier is fixed on the frame 1.Center shaft 6 one ends of satellite gear are connected with the Timing Belt modified roll mechanism, and its other end is connected with cam link mechanism.Idle pulley 4 meshes with sun wheel 3, satellite gear 5 respectively; And the number of teeth of satellite gear 5 be sun wheel 3 the number of teeth 1/2.
Be provided with U-shaped incision tract 26 in the middle of this pinion carrier, incision tract is used for installing sun wheel 3, satellite gear 5, idle pulley 4.
Driver train comprises the first gear 21, the second gear 24 and power input shaft 23; Pinion carrier is connected with the first gear 21, the first gear 21 and 24 engagements of the second gear; The second gear 24 is connected with power input shaft 23, and power take-off shaft is connected with external power source.
The Timing Belt modified roll mechanism comprises connecting rod 7 and places Timing Belt 12, the first belt wheel 9, the second belt wheel 11 and tension wheel 10 in the connecting rod 7.The first belt wheel is connected with the center shaft of satellite gear, and this first belt wheel can rotate with respect to satellite gear 5 or connecting rod 7.The first belt wheel 9, the second belt wheel 11 connect by Timing Belt; And tension wheel is pressed on the Timing Belt.And the number of teeth of the first belt wheel 9 is that 1/2, the second belt wheel 11 of the number of teeth of the second belt wheel 11 is taken turns the footpath greater than the first belt wheel 9.The second belt wheel rotates relative to connecting rod under the driving of the first belt wheel, and the clutch end of the second belt wheel is connected with pushing handle mechanisms.
In addition, the bar length of connecting rod 7 equals the width between centers of sun wheel 3 and satellite gear 5.Connecting rod is hollow shape, and Timing Belt 12, the first belt wheel 9, the second belt wheel 11 are arranged in the connecting rod with tension wheel 10.
Cam link mechanism comprises plane groove cam 20 and quadric linkage; Described quadric linkage comprises the first bar 38, rocking bar 18, the 3rd bar 17 and crank 16.The first bar 38 1 ends are contained on the pinion carrier 2, and the other end is connected with an end of rocking bar 18, and the other end of rocking bar 18 is connected with an end of the 3rd bar 17, and the other end of the 3rd bar 17 is connected with an end of crank 16, and the other end of crank 16 is connected with the center shaft of satellite gear 6.Plane groove cam 20 is contained on the frame 1.Rocking bar 18 is provided with roller 19, the corresponding guide rail 25 that slides for roller 19 that is provided with on the plane groove cam 20.
Pushing handle mechanisms comprises pushing hands 13.The power intake of pushing hands is connected with the clutch end of the center shaft 27 of the second belt wheel.The linear reciprocating motion that rotatablely moves with the center shaft 27 of the second belt wheel that is pinion carrier 2 can transform mutually, thereby so that goods move along straight path 28.The clutch end 15 of pushing hands is provided with spacer 14, and the goods that spacer 14 is used for pushing is located.
In pushing the goods process, cam link mechanism is static with respect to pinion carrier 2, the additional movement that does not namely produce other directions around plane groove cam 20 central rotations.When returning, rocking bar 18 swings fast, produces the additional movement with respect to pinion carrier 2, and crank passes to this motion the center shaft 6 of satellite gear, and the center shaft 6 of satellite gear passes to the Timing Belt modified roll mechanism, acts at last pushing handle mechanisms.Pushing handle mechanisms produces an additional movement thereupon on original straight-line motion basis, both stacks are so that pushing handle mechanisms is along returning track 29 fast returns.
The characteristics of motion about cam link mechanism was explained according to rise and two stages of return:
1) rise
Requiring pushing hands to keep attitude only to do motion of translation in the rise goods straight line is pushed, is 0 so pushing hands reaches the cireular frequency of the second belt wheel 11 fixed with it.
As shown in figure 10, the condition of planetary wheel mechanism generation linear reciprocating motion is:
L
2=L
7，ω
2=-ω
7；
L wherein
2And ω
2Be respectively pinion carrier 2 radiuses and cireular frequency thereof, L
7And ω
7Be respectively satellite gear connecting rod 7 length and cireular frequency thereof.
Take satellite gear connecting rod 7 as reference system, then the second belt wheel 11 is with respect to the acceleration/accel ω of connecting rod 7
117For:
ω
117=-ω
7=ω
2。
The number of teeth according to the first belt wheel 9 is 1/2 of the second belt wheel 11, and the first belt wheel 9 relatively and the angular velocity omega of connecting rod 7 as can be known
97For:
ω
97=2ω
117=2ω
2。
Take frame 1 as reference system, the absolute angle speed of the first belt wheel 9 is: ω
9=ω
7+ ω
97=ω
2
So the cireular frequency of the first belt wheel 9 is identical with the cireular frequency of pinion carrier 2, namely both are relatively static.
Accordingly, the crank 16 fixed with the first belt wheel 9 is also static with respect to pinion carrier 2, the rocking bar 18 in the connecting rod mechanism be cam rocker arm without swing, corresponding cam locus is circular arc.
2) return
As shown in figure 11, the first belt wheel 9 is 0 at rise with respect to the angular transposition of pinion carrier, and in return, pushing hands needs first conter clockwise to raise, and then cw reinstatement attitude, so a unimodal variation appears in the angular transposition with respect to pinion carrier 2 of the first belt wheel 9 in return.
As shown in Figure 9, solid line is the state 1 that rise cam connecting rod mechanism keeps, and dotted line is connecting rod state 2 corresponding when the crank displacement reaches maximum in the return, is summarized as: during rise, and connecting rod mechanism hold mode 1; During return, connecting rod mechanism changes to state 2 by state 1, changes to state 1 by state 2 again, finishes the motion of one-period.
The present embodiment is except following characteristics, and other are all identical with embodiment 1: shown in Fig. 1,3,5,6,8,9, planetary wheel mechanism is the toothed belt transmission planetary wheel mechanism.The toothed belt transmission planetary wheel mechanism comprises pinion carrier 2 and is located at sun wheel 34 on the pinion carrier 2, satellite gear 35 and tension wheel 36.Wherein, the center shaft 22 of sun wheel passes pinion carrier 2 and is fixed on the frame 1.Center shaft 6 one ends of satellite gear are connected with the Timing Belt modified roll mechanism, and its other end is connected with cam link mechanism.Sun wheel 34 and satellite gear 35 are synchronous pulley, and sun wheel 34 is passed through Timing Belt 37 transmissions with satellite gear 35, and tension wheel 36 is pressed on the Timing Belt 37; And the number of teeth of satellite gear 35 be sun wheel 34 the number of teeth 1/2.
Be provided with U-shaped incision tract 26 in the middle of this pinion carrier, incision tract is used for installing sun wheel 3, satellite gear 5 and tension wheel 36.
Above-described embodiment is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model.Be that all equalizations of doing according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (10)
1. reciprocal pusher of two-freedom differential type is characterized in that: comprise frame (1) and be located at planetary wheel mechanism on the frame (1) and driver train, cam link mechanism; Described planetary wheel mechanism comprises pinion carrier (2) and the satellite gear (5 or 35) of being located on the pinion carrier (2), and described planetary wheel mechanism is connected with driver train by pinion carrier (2); Center shaft (6) one ends of described satellite gear are provided with the Timing Belt modified roll mechanism, and its other end is provided with cam link mechanism; In addition, described cam link mechanism also is connected with pinion carrier (2); The clutch end of described Timing Belt modified roll mechanism is connected with pushing handle mechanisms.
2. the reciprocal pusher of two-freedom differential type according to claim 1, it is characterized in that: described planetary wheel mechanism is gear transmission planetary wheel mechanism or toothed belt transmission planetary wheel mechanism.
3. the reciprocal pusher of two-freedom differential type according to claim 2 is characterized in that: described gear transmission planetary wheel mechanism also comprises the sun wheel (3) and idle pulley (4) that is located on the pinion carrier; Wherein, the center shaft of described sun wheel (22) passes pinion carrier (2) and is fixed on the frame (1); Described idle pulley (4) meshes with sun wheel (3), satellite gear (5) respectively, thereby drives the rotation of satellite gear (5); And the number of teeth of described satellite gear (5) be sun wheel (3) the number of teeth 1/2.
4. the reciprocal pusher of two-freedom differential type according to claim 2 is characterized in that: described toothed belt transmission planetary wheel mechanism also comprises pinion carrier (2) and is located at sun wheel (34) and tension wheel (36) on the pinion carrier; Wherein, the center shaft of described sun wheel (22) passes pinion carrier (2) and is fixed on the frame (1); Sun wheel (34) and satellite gear (35) are synchronous pulley, and sun wheel (34) drives satellite gear (35) by Timing Belt (37), and described tension wheel is pressed on the Timing Belt; And the number of teeth of described satellite gear (35) be sun wheel (34) the number of teeth 1/2.
5. according to claim 3 or the reciprocal pusher of 4 described two-freedom differential types, it is characterized in that: be provided with U-shaped incision tract (26) in the middle of the described pinion carrier, described incision tract is used for installing sun wheel (3), satellite gear (5) and idle pulley (4); Or described incision tract is used for installing sun wheel (34), satellite gear (35) and tension wheel (36).
6. the reciprocal pusher of two-freedom differential type according to claim 5 is characterized in that: described driver train comprises the first gear (21), the second gear (24) and power input shaft (23); Described pinion carrier and the first gear (21) engagement, described the first gear (21) and the second gear (24) engagement; Described the second gear (24) is connected with power input shaft (23), and described power take-off shaft is connected with external power source.
7. the reciprocal pusher of two-freedom differential type according to claim 6 is characterized in that: described Timing Belt modified roll mechanism comprises connecting rod (7) and places Timing Belt (12), the first belt wheel (9), the second belt wheel (11) and tension wheel (10) in the connecting rod (7); Described the first belt wheel (9) is connected with the center shaft (6) of satellite gear, and this first belt wheel (9) rotates with respect to satellite gear (5,35) or connecting rod (7); Described the first belt wheel (9), the second belt wheel (11) connect by Timing Belt (12), and described tension wheel (10) is pressed on the Timing Belt; The number of teeth of described the first belt wheel (9) be the second belt wheel (11) the number of teeth 1/2, described the second belt wheel (11) wheel footpath is greater than the first belt wheel (9); Described the second belt wheel (11) rotates relative to connecting rod (7) under the driving of the first belt wheel (9), and described the second belt wheel (11) one ends are connected with pushing handle mechanisms; The bar length of described connecting rod (7) equals the width between centers of sun wheel (34) and satellite gear (35).
8. the reciprocal pusher of two-freedom differential type according to claim 7, it is characterized in that: described connecting rod (7) is hollow shape, and described Timing Belt (12), the first belt wheel (9), the second belt wheel (11) are arranged in the connecting rod (7) with tension wheel (10).
9. according to claim 7 or the reciprocal pusher of 8 described two-freedom differential types, it is characterized in that: described cam link mechanism comprises plane groove cam (20) and quadric linkage; Described quadric linkage comprises the first bar (38), rocking bar (18), the 3rd bar (17) and crank (16); Described the first bar (38) one ends are contained on the pinion carrier (2), the other end is connected with an end of rocking bar (18), the other end of described rocking bar (18) is connected with an end of the 3rd bar (17), one end of the other end of described the 3rd bar (17) and crank (16) is hinged, and the other end of described crank (16) is connected with the center shaft (6) of satellite gear; Described plane groove cam (20) is contained on the frame (1); Described rocking bar (18) is provided with roller (19), the upper corresponding guide rail (25) that slides for roller (19) that is provided with of described plane groove cam (20).
10. the reciprocal pusher of two-freedom differential type according to claim 9, it is characterized in that: described pushing handle mechanisms comprises pushing hands (13), the power intake of described pushing hands (13) is connected with the clutch end of the center shaft (27) of the second belt wheel (11), the clutch end of described pushing hands (15) is provided with spacer (14), and the goods that described spacer (14) is used for pushing is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220336081 CN202729225U (en) | 2012-07-11 | 2012-07-11 | Two-degree-of-freedom differential reciprocating push device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220336081 CN202729225U (en) | 2012-07-11 | 2012-07-11 | Two-degree-of-freedom differential reciprocating push device |
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| Publication Number | Publication Date |
|---|---|
| CN202729225U true CN202729225U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220336081 Expired - Fee Related CN202729225U (en) | 2012-07-11 | 2012-07-11 | Two-degree-of-freedom differential reciprocating push device |
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| CN (1) | CN202729225U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774611A (en) * | 2012-07-11 | 2012-11-14 | 华南理工大学 | Two-degree-of-freedom differential type reciprocating pushing device |
| CN104590826A (en) * | 2013-10-31 | 2015-05-06 | 成都工业学院 | Conveying mechanism and conveying method for hose needles |
| CN105456002A (en) * | 2016-01-07 | 2016-04-06 | 天津大学 | Rehabilitation training robot capable of achieving normal gait pattern |
| CN110844499A (en) * | 2019-11-29 | 2020-02-28 | 韦子丽 | Interval blowing device |
-
2012
- 2012-07-11 CN CN 201220336081 patent/CN202729225U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774611A (en) * | 2012-07-11 | 2012-11-14 | 华南理工大学 | Two-degree-of-freedom differential type reciprocating pushing device |
| CN104590826A (en) * | 2013-10-31 | 2015-05-06 | 成都工业学院 | Conveying mechanism and conveying method for hose needles |
| CN105456002A (en) * | 2016-01-07 | 2016-04-06 | 天津大学 | Rehabilitation training robot capable of achieving normal gait pattern |
| CN110844499A (en) * | 2019-11-29 | 2020-02-28 | 韦子丽 | Interval blowing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150711 |
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| EXPY | Termination of patent right or utility model |