CN103075482B - Dual-meshing needle finger cam indexing mechanism - Google Patents
Dual-meshing needle finger cam indexing mechanism Download PDFInfo
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- CN103075482B CN103075482B CN201310008063.7A CN201310008063A CN103075482B CN 103075482 B CN103075482 B CN 103075482B CN 201310008063 A CN201310008063 A CN 201310008063A CN 103075482 B CN103075482 B CN 103075482B
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Abstract
The invention relates to a dual-meshing needle finger cam indexing mechanism which comprises an input shaft, an output shaft, an internal cycloidal wheel, a needle wheel, needle teeth and an indexing cam, wherein the input shaft is coaxially arranged on the middles of a front cover and a baffle, the internal cycloidal wheel is arranged on the input shaft, the output shaft is coaxially arranged on the middles of the baffle and a rear cover, the indexing cam with a plurality of special outer edge contour lines is arranged on the output shaft, and the input shaft and the output shaft are coaxially and alternatively arranged; the eccentrically arranged needle wheel is arranged on the input shaft between the internal cycloidal wheel and the indexing cam through a rolling bearing, a plurality of needle teeth matched with the cam are alternatively and uniformly arranged on the needle wheel coaxially and radically, one ends of the needle teeth are meshed with the internal cycloidal wheel, and the other ends of the needle teeth are blocked with the indexing cam in a sliding manner. The dual-meshing needle finger cam indexing mechanism has the advantages of simple and compact structure, small quantity of parts, stable transmission, reliable operation and high transmission efficiency, material saving, light whole mass, and reduced manufacture cost due to the fact that parts are processed and manufactured easily.
Description
Technical field
The invention belongs to field of mechanical technique, relate to driving mechanism, especially a kind of two engagement pin finger cam indexing mechanism.
Background technique
Cam intermittent mechanism has been widely used in the automatic part of modern industry, and it has become the main flow device of precision actuation in the world today.Product relates to automatic line and the various general machinery equipments such as packaging, printing, pharmacy, chemical industry, tobacco, electronic apparatus, glass ceramic, automobile making, and they are as the core driven device of automatic machinery, play vital effect.But, current Cam intermittent mechanism is mainly with single driven member and cam contact carry-over moment, be that 1-2 is individual with the roller number of cam contact while of when working for ferguson cam mechanism, carry-over moment is limited to and participated in stress suffered by the roller of engagement comparatively concentrates easily generation contact fatigue strength destruction.
Cycloidal-pin wheel planetary gearing mechanism and double cycloid pinwheel (roller) epicyclic transmission mechanism, the velocity ratio had with it is large, compact structure, bearing capacity large, transmission efficiency and the outstanding advantages such as total number of teeth in engagement is many, is widely used in the industrial fields such as machinery, mine, metallurgy, chemical industry, weaving, national defense industry.Wherein double cycloid pinwheel (roller) is although epicyclic transmission mechanism has had more outer ring than cycloidal-pin wheel planetary gearing mechanism, but also eliminate comparatively complicated output mechanism and can realize the higher gearing down of velocity ratio, therefore double cycloid pinwheel (roller) epicyclic transmission mechanism is a kind of more superior epicyclic transmission mechanism on the whole.
In sum, present invention incorporates Cam intermittent mechanism, the advantage of cycloid, double cycloid pinwheel (roller) epicyclic transmission mechanism, can realize meeting interrupted output that user requires and there is higher indexing accuracy, the large number of divisions, high bearing capacity.Therefore the present invention has far-reaching Research Significance and broad application space.
Following Patents is found through retrieval:
A kind of planetary transmission system (CN202360734U), comprise main shaft, be set on the sun gear on main shaft and planetary plate gear, described planetary plate gear is provided with the planet pin with main axis parallel, described planet pin upper sleeve through has the planetary pinion engaged with sun gear, and described planet pin is eccentric shaft.Planet pin of the present invention is eccentric shaft, gap is produced because rubbing between the planetary pinion and sun gear of engagement, can eccentric rotation axis, reduce the distance between planetary pinion and sun gear axis, and then the gap of eliminating both them between engaging tooth, recovery system precision.
A kind of double rotor planet differential electricity generator (CN101364759), its structure is by hollow shaft, external rotor, internal rotor and planetary gear mechanism composition, internal rotor is arranged in the middle of external rotor, the centre of external rotor and internal rotor is provided with bearing and connects with hollow shaft, the housing cylindrical inwall of external rotor is provided with external rotor winding unshakable in one's determination, the cylindrical of the housing exterior walls of internal rotor is provided with internal rotor winding unshakable in one's determination, the inner circle of external rotor winding unshakable in one's determination and the adjacent reverse rotation of cylindrical of internal rotor winding unshakable in one's determination, the side of external rotor and internal rotor is provided with planetary gear mechanism, planetary gear mechanism is made up of interlock dish and planetary pinion, the center of interlock dish is connected with hollow shaft by bearing, planetary pinion is arranged on the edge of interlock dish by bearing, the edge of the housing of external rotor is provided with external toothing, the side of internal rotor is provided with ring gear, planetary pinion is meshed with external toothing and ring gear simultaneously.This generator is mainly used in the wind-power electricity generation of low wind speed and the hydroelectric power of low head.
For positive component and the planetary transmissions (CN102466029A) of planetary transmissions, planetary transmissions has at least one planetary pinion, planetary pinion pin and bearing means, planetary pinion is arranged on planetary pinion pin by bearing means rotationally, planetary pinion pin has depressed part unlimited vertically and at least one is for the lubricant passageway to bearing means supply oiling agent, and wherein depressed part and lubricant passageway are fluidly connected, positive component is with plug region section, described connector section has at least one positive section, wherein positive sector architecture is used for preventing connector section to be axially movably locked in depressed part by connector section positive and/or force closure, wherein, positive section to be scarfed in lubricant passageway and to have lubricant passageway, thus oiling agent is directed to by positive section and/or bootable in lubricant passageway.
A kind of planetary type gear transmission unit (CN202360685U), utilize the cooperation of cross chute and slide block in sheave structure, drag effect force is made to remain at 1/2nd places of sheave radius, and be connected with sheave due to planetary pinion, planetary pinion and sheave coaxial synchronous rotate, such drag effect force is just at 1/2nd places of planet tooth radius, that is the resistance in driving disc axle and planetary pinion, shared drag effect force, internal gear engagement place, realizes the increase of its output terminal power; Again because planetary pinion and internal gear are meshed, planetary pinion rotates and rotation under the active force of driving disc axle drives, therefore the position of contact points along with planetary rotation synchronous change, the sheave coaxial with it also synchronous rotary, and then drive the rotation of output shaft, under ensure that the prerequisite that input shaft and output shaft are synchronous in the same way, increase the power of its output terminal.The invention also discloses a kind of power system that have employed above-mentioned planetary type gear transmission unit.
Through contrast, there is relatively big difference in the technology disclosed in above-mentioned patent document and present patent application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of two engagement pin finger cam indexing mechanism be provided, this mechanism has the large number of divisions, compared with high bearing capacity, compact structure, part manufacturing easily, the feature of low cost of manufacture.
A kind of two engagement pin finger cam indexing mechanism, cabinet is fixedly mounted with in support upper end, described cabinet comprises protecgulum, baffle plate and the bonnet that order is successively fixedly mounted with, the bearing hole for supporting input shaft and/or output shaft is all coaxially shaped with in the middle part of this protecgulum, baffle plate and bonnet, it is characterized in that: also comprise input shaft, output shaft, hypocycloid wheel, pinwheel, pin tooth and index cam, its concrete mounting structure is:
In the middle part of protecgulum and baffle plate, coaxially input shaft is installed, this input shaft is fixedly mounted with hypocycloid wheel; Coaxially install output shaft at the middle part of baffle plate and bonnet, this output shaft is fixedly mounted with the index cam that has multiple special outer margin contour line, described input shaft and output shaft coaxial spaced are arranged;
Input shaft between hypocycloid wheel and index cam is provided with the pinwheel of an eccentric setting by rolling bearing, on this pinwheel, coaxial spaced radial is uniform is provided with pin tooth that is multiple and cam engagement, one end of the plurality of pin tooth is taken turns with hypocycloid and is engaged, hypocycloid wheel drive pin tooth makes eccentric center translation around axis, and the other end of the plurality of pin tooth and the outer margin contour line of index cam adopt slip to clamp mode.
And, described input shaft is also provided with counterweight.
And described protecgulum, baffle plate and bonnet are fixedly mounted with by flange plate order.
And described outer margin contour line is linear to be coordinated with pin number of teeth amount, and outer margin contour line is than pin number of teeth amount few.
The present invention solves its technical problem and takes following technological scheme to realize:
Advantage of the present invention and good effect are:
1, mechanism by hypocycloid wheel with pin tooth engage the eccentric center translation and one-level speedup that realize pin tooth, provide the possibility of the larger number of divisions of realization.
2, twice engagement of mechanism is multiple tooth engagement and has stable drive, the feature that efficiency is high, is conducive to improving Transmission bearing and realizes high-power transmission.
3, mechanism hypocycloid wheel, pin gear and cam adopt coaxially arranged, by with baffle plate acting in conjunction realize pin tooth eccentric center translation avoid uses ring-plane structure to have radial dimension comparatively greatly and the problems such as the mechanism " dead point " existed.
4, of the present invention simple and compact for structure, number of spare parts is few, stable drive, reliable and transmission efficiency is high, saves material, total quality is light, and part manufacturing is easy, reduces manufacture cost.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is the left view that Fig. 1 removes bonnet and baffle plate.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of two engagement pin finger cam indexing mechanism, as shown in drawings, comprise cabinet, support 10, input shaft 7, output shaft 1, hypocycloid wheel 6, pinwheel 5, pin tooth 3 and index cam 2, cabinet is fixedly mounted with in support upper end, described cabinet comprises the protecgulum 9, baffle plate 11 and the bonnet 12 that are fixedly mounted with by flange plate order, is all coaxially shaped with the bearing hole for supporting input shaft and/or output shaft in the middle part of this protecgulum, baffle plate and bonnet;
In protecgulum and the made bearing hole of baffle plate, coaxially input shaft is installed, this input shaft is fixedly mounted with a hypocycloid wheel; In baffle plate and the made bearing hole of bonnet, coaxially install output shaft, this output shaft is fixedly mounted with the index cam that has multiple special outer margin contour lines, this outer margin contour line is linear to be coordinated with pin number of teeth amount, outer margin contour line than pin number of teeth amount few,
Be six indexing mechanisms in the present embodiment, in the present embodiment, pin tooth is six as shown in Figure 2, and cam is shaped with the projection that five coordinate the outer margin contour line of pin tooth, and the outer margin contour line of cam and the actual quantity of pin tooth set according to required transmission parameter;
Described input shaft and output shaft coaxial spaced are arranged, and the two ends of input shaft and output shaft are separately installed with bearing 8 supports;
Input shaft between hypocycloid wheel and index cam is provided with one for supporting the pinwheel of pin tooth by rolling bearing bias, on this pinwheel, spaced radial is uniform is provided with multiple homoaxial pin tooth, described pinwheel and input shaft eccentric setting, namely the circumference that formed of pin tooth and eccentric axis are arranged.
Described input shaft being also provided with counterweight 4, making the pinwheel of eccentric setting realize dynamic balancing when moving.
One end of described multiple pin tooth is taken turns with hypocycloid and is engaged, this hypocycloid wheel drive pin tooth makes eccentric center translation around axis, the other end of the plurality of pin tooth adopts slip to clamp mode with the outer margin contour line of index cam to coordinate, hypocycloid wheel is driven by input shaft and is rotated through the rotation of pin tooth driving index cam, thus by transmission of power to output shaft, realize coaxial dividing movement.
Working principle of the present invention: input shaft drives hypocycloid wheel to do fixed-axis rotation, hypocycloid wheel engages with pin tooth and drives pin tooth to do eccentric center translation, pin tooth and cam-engaged driving cam do dead axle intermittent rotary, and are exported by the output shaft connected firmly with cam, achieve coaxial dividing movement.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (4)
1. a two engagement pin finger cam indexing mechanism, cabinet is fixedly mounted with in support upper end, described cabinet comprises protecgulum, baffle plate and the bonnet that order is successively fixedly mounted with, the bearing hole for supporting input shaft and/or output shaft is all coaxially shaped with in the middle part of this protecgulum, baffle plate and bonnet, it is characterized in that: also comprise input shaft, output shaft, hypocycloid wheel, pinwheel, pin tooth and index cam, its concrete mounting structure is:
In the middle part of protecgulum and baffle plate, coaxially input shaft is installed, this input shaft is fixedly mounted with hypocycloid wheel; Coaxially install output shaft at the middle part of baffle plate and bonnet, this output shaft is fixedly mounted with the index cam that has multiple outer margin contour line, described input shaft and output shaft coaxial spaced are arranged;
Input shaft between hypocycloid wheel and index cam is provided with the pinwheel of an eccentric setting by rolling bearing, on this pinwheel, coaxial spaced radial is uniform is provided with pin tooth that is multiple and cam engagement, one end of the plurality of pin tooth is taken turns with hypocycloid and is engaged, hypocycloid wheel drive pin tooth makes eccentric center translation around axis, and the other end of the plurality of pin tooth and the outer margin contour line of index cam adopt slip to clamp mode.
2. two engagement pin finger cam indexing mechanism according to claim 1, is characterized in that: described input shaft is also provided with counterweight.
3. two engagement pin finger cam indexing mechanism according to claim 1, is characterized in that: described protecgulum, baffle plate and bonnet are fixedly mounted with by flange plate order.
4. two engagement pin finger cam indexing mechanism according to claim 1, is characterized in that: described outer margin contour line is linear to be coordinated with pin number of teeth amount, and outer margin contour line is than pin number of teeth amount few.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008063.7A CN103075482B (en) | 2013-01-08 | 2013-01-08 | Dual-meshing needle finger cam indexing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008063.7A CN103075482B (en) | 2013-01-08 | 2013-01-08 | Dual-meshing needle finger cam indexing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN103075482A CN103075482A (en) | 2013-05-01 |
| CN103075482B true CN103075482B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310008063.7A Active CN103075482B (en) | 2013-01-08 | 2013-01-08 | Dual-meshing needle finger cam indexing mechanism |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115995915B (en) * | 2022-11-30 | 2023-10-20 | 金风科技股份有限公司 | Combined body and wind generating set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291257A (en) * | 1969-02-19 | 1972-10-04 | G K N Transmissions Ltd Former | Lubrication system for change-speed epicyclic gearing |
| CN1542310A (en) * | 2003-11-07 | 2004-11-03 | 上海市师范大学 | Pin gear cycloid gear driving device and speed reducer thereof |
| CN201212552Y (en) * | 2008-06-05 | 2009-03-25 | 中国民航大学 | Novel planet graduation cam mechanism |
| CN202251780U (en) * | 2011-09-08 | 2012-05-30 | 天津科技大学 | Intermittent driving device for inner translational movement variable contour line cam |
| CN203009754U (en) * | 2013-01-08 | 2013-06-19 | 天津科技大学 | Double-mesh pin teeth cam dividing mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006046596A (en) * | 2004-08-06 | 2006-02-16 | Sumitomo Heavy Ind Ltd | Planetary reduction gear |
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2013
- 2013-01-08 CN CN201310008063.7A patent/CN103075482B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291257A (en) * | 1969-02-19 | 1972-10-04 | G K N Transmissions Ltd Former | Lubrication system for change-speed epicyclic gearing |
| CN1542310A (en) * | 2003-11-07 | 2004-11-03 | 上海市师范大学 | Pin gear cycloid gear driving device and speed reducer thereof |
| CN201212552Y (en) * | 2008-06-05 | 2009-03-25 | 中国民航大学 | Novel planet graduation cam mechanism |
| CN202251780U (en) * | 2011-09-08 | 2012-05-30 | 天津科技大学 | Intermittent driving device for inner translational movement variable contour line cam |
| CN203009754U (en) * | 2013-01-08 | 2013-06-19 | 天津科技大学 | Double-mesh pin teeth cam dividing mechanism |
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| CN103075482A (en) | 2013-05-01 |
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