CN102338202A - Meshing drive structure for rudder-shaped roller wheel and cambered-surface enveloping wheel - Google Patents
Meshing drive structure for rudder-shaped roller wheel and cambered-surface enveloping wheel Download PDFInfo
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- CN102338202A CN102338202A CN2010102303119A CN201010230311A CN102338202A CN 102338202 A CN102338202 A CN 102338202A CN 2010102303119 A CN2010102303119 A CN 2010102303119A CN 201010230311 A CN201010230311 A CN 201010230311A CN 102338202 A CN102338202 A CN 102338202A
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
- F16H1/166—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with members rotating around axes on the worm or worm-wheel
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/10—Constructively simple tooth shapes, e.g. shaped as pins, as balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a meshing drive structure for a rudder-shaped roller wheel and a cambered-surface enveloping wheel. Rollable rollers are arranged on a drive meshing face of the rudder-shaped roller wheel at equal interval, the external form of the cambered-surface enveloping wheel is a revolution surface formed by revolution of a concave arc wheel around an axis, a spiral track groove capable of meshing the rollers is arranged on the revolution surface, the rudder-shaped roller wheel and the cambered-surface enveloping wheel are subjected to meshing drive through a plurality of rollers at the same time, and the cambered-surface enveloping wheel envelops the rudder-shaped roller wheel. Compared with gear set drive, the meshing drive structure disclosed by the invention has the advantages of large drive ratio, stability in operation, compact structure, small size and no noises; and compared with worm drive, the meshing drive structure is characterized by changing toothed sliding friction of a worm and worm gear into rolling friction of the rollers and has the advantages of small abrasion, long service life, high efficiency, low energy consumption, large bearing capacity and large designable drive ratio range. For the manufacturing of the rudder-shaped roller wheel, gear hobbing, gear shaping and other manners art not adopted for machining teeth any more, and a simple drilling, milling and twisting manner is adopted for machining an assembly type structure, so that the manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of power transmission arrangment; The transmission Surface of action equidistance of rudder shape roller bearing wheel is installed the roller bearing that can roll; Cambered surface envelope wheel profile is the turning surface that concave circular arc is rotarily formed around wheel axis; The helical orbit groove that engageable roller bearing is arranged on the turning surface, rudder shape roller bearing wheel and cambered surface envelope wheel are simultaneously through a plurality of roller bearing engagement driving, and cambered surface envelope wheel forms envelope to rudder shape roller bearing wheel.
Background technique
Speed change drive mechanism commonly used has gear train transmission and worm drive; The gear train transmission efficiency is high; Accurately and reliably, be the widely used kind of drive, but have that stationarity is poor when running up, noise big, can not damping vibration, big retarding than the time shortcoming such as more bulky; Worm drive has that reduction speed ratio is big, compact structure, stable working, noiseless, can damping vibration, can 90 degree break-ins etc. advantage; Also in various retarding devices and mechanical transmission, be widely used; But worm drive is teeth face friction the carrying out transmission of leaning between the worm and worm wheel; Therefore its intrinsic shortcoming is that wearing and tearing are big, transmission efficiency is low, precision is poor, and working life is short, energy consumption is high; The velocity ratio of worm transmission structure if require velocity ratio less than 10, then manufactures and designs very difficulty generally more than 10.In the common cylindrical worm gearing transmission process, have only 1-2 tooth to carry driving force, thus its bearing capacity a little less than, should not be used for large-scale jumbo; The ring surface enveloped worm screw technology that occurred afterwards; The number of teeth of worm and worm wheel engagement increases in transmission process, and it is big that bearing capacity becomes, but its difficulty of processing is big; Complex process; Poor effect, and remain by the gear tooth friction of worm and gear and come transmission, thereby common worm geared wearing and tearing are big, transmission efficiency is low etc., and problem still exists.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology, a kind of novel rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure is provided, this structure running steadily; Compact structure, volume is little, noiseless; And it is little to wear and tear, and efficient is high, and energy consumption is low; Bearing capacity is big, but designing transmission value scope is big, in order to reach this target; Technological scheme of the present invention is achieved in that a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure, is made up of rudder shape roller bearing wheel and cambered surface envelope wheel, and rudder shape roller bearing wheel comprises roller bearing carrier wheel, roller bearing, planetary roller and roller bearing limit stoper; On the transmission engagement circumferential surface of roller bearing carrier wheel, the identical roller bearing mounting hole of structure that equidistantly distributes is arranged, the center line of roller bearing mounting hole and passes roller bearing carrier wheel center on the same cross section of roller bearing carrier wheel; Have on the plane of roller bearing carrier wheel and the concentric circular groove of roller bearing carrier wheel, the circular groove degree of depth can stretch into wherein the roller bearing stop portion; Roller bearing comprises mate, bearing part and stop portion, and this three part is the solid of rotation that forms around same central shaft, and the cross section of mate is greater than the bearing part cross section, and the mate end can be tack or round end; After roller bearing installed in the roller bearing mounting hole, its bearing part was in the roller bearing mounting hole, and stop portion extend among the circular groove, and mate exceeds roller bearing carrier wheel outer peripheral surface certain altitude, with cambered surface envelope wheel on the helical orbit groove be meshed; The bearing part of roller bearing is in the roller bearing mounting hole, and planetary roller is installed around it; Roller bearing mounting hole, planetary roller and roller bearing closely cooperate, and form bearing structure, and the roller bearing mounting hole is equivalent to the outer ring of bearing, and roller bearing is equivalent to the inner ring of bearing; The stop portion of roller bearing is connected with the roller bearing limit stoper in circular groove, makes roller bearing in the roller bearing mounting hole, rotate but can not detach the roller bearing mounting hole in the center of each planetary roller; The roller bearing carrier wheel of roller bearing has been installed, and the pole of figure resembles the rudder of steamer, is referred to as rudder shape roller bearing wheel; The profile of cambered surface envelope wheel is that concave circular arc centers on the turning surface that cambered surface envelope wheel central axis is rotarily formed, and this turning surface can form envelope to rudder shape roller bearing wheel, is referred to as concave circular arc turning surface envelope wheel, is called for short cambered surface envelope wheel; The diameter of concave circular arc equals roller bearing carrier wheel diameter; On the turning surface of cambered surface envelope wheel, the helical orbit groove is arranged, the pitch of helical orbit groove equates; The Normal section of helical orbit groove is consistent with the vertical sectional shape specification of roller bearing mate, makes helical orbit groove and the roller bearing mate can optimal engagement; Rudder shape roller bearing wheel becomes 90 degree staggered with cambered surface envelope wheel central shaft; Each roller bearing central axis of the central axis of cambered surface envelope wheel and rudder shape roller bearing wheel is in same plane; Rudder shape roller bearing wheel makes the roller bearing mate just in time engage into the helical orbit groove of cambered surface envelope wheel with the central moment of cambered surface envelope wheel, and cambered surface envelope wheel forms envelope to rudder shape roller bearing wheel.
Described a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure when the bearing part periphery of roller bearing is conical surface, is called conical roller, and the roller bearing mounting hole on the roller bearing carrier wheel outer peripheral surface is a cone shape hole, and the conical roller mounting hole communicates with circular groove; Accordingly, planetary roller is the taper planetary roller, and its periphery also is a conical surface, and the outer conical surface virtual vertex of the bearing part of roller bearing, conical roller mounting hole, taper planetary roller is the center of roller bearing wheels.
Described a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure; When the bearing part periphery of roller bearing is the cylndrical surface; Be called the cylindricality roller bearing; Roller bearing mounting hole on the roller bearing carrier wheel outer peripheral surface is a cylindrical hole, and planetary roller is the cylindricality planetary roller, and the center line of cylindricality roller bearing mounting hole passes roller bearing wheels center; Cylindricality roller bearing mounting hole is made up of two-part up and down, and top is the big flat cylindrical hole of diameter, installation cylindricality roller bearing and cylindricality planetary roller; The bottom is the little cylindricality open-work of diameter, is positioned at the center, hole, communicates with circular groove, only allows the cylindricality roller bearing at center to pass through; The stop portion tail end of cylindricality roller bearing is a sphere.
Described a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure, the planetary roller in its roller bearing mounting hole has retainer, and retainer is combined in planetary roller on the fixing circumference; When planetary roller rolled around roller bearing, retainer rotated thereupon.
Described a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure, its cambered surface envelope wheel is gone up the length of cambered surface envelope part, at most can envelope rudder shape roller bearing wheel half the.
Described a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure; Roller bearing spacing on the rudder shape roller bearing wheel refers to the arc length on the roller bearing carrier wheel outer peripheral surface between the two roller bearing center lines, and the helical orbit groove pitch on the cambered surface envelope wheel refers to the arc length on the envelope wheel cambered surface between adjacent two all helical orbit groove center lines; When the design of cambered surface envelope wheel monofilament road, the pitch that cambered surface envelope wheel is gone up the helical orbit groove and rudder shape roller bearing the wheel upward spacing of roller bearing equate or are the 1/n of roller bearing spacing that n is a positive integer; When the design of cambered surface envelope wheel multifibres road, the pitch that cambered surface envelope wheel is gone up the helical orbit groove is the integral multiple that rudder shape roller bearing wheel is gone up the roller bearing spacing.
Described a kind of rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure; The roller bearing stop portion has restraining groove; The roller bearing limit stoper adopts circular spacing snap ring, and a plurality of opening draw-in grooves are arranged at spacing snap ring bottom, the roller bearing restraining groove position consistency after the snap ring diameter is in place draw-in groove and roller bearing; The corresponding roller bearing of each draw-in groove, draw-in groove snaps onto in the roller bearing restraining groove.
The invention has the beneficial effects as follows: rudder shape roller bearing wheel and cambered surface envelope wheel be through rotating roller bearing engagement, and it is big to have a velocity ratio with respect to the gear train transmission system, and running is steady, compact structure, and volume is little, muting advantage; With respect to worm drive; Then be equivalent to become the teeth sliding friction of worm and worm gear the rolling friction of roller bearing; Therefore wear and tear in the transmission process and reduce greatly; Transmission efficiency is greatly improved, so needed input power equipment power reduction during identical load, and energy consumption reduces in the equipment work process.The roller bearing quantity of engagement is many between rudder shape roller bearing wheel and the cambered surface envelope wheel, and the enhancing of bearing capacity several times can be used for heavy duty equipment; Because rudder shape roller bearing wheel and cambered surface envelope wheel have a plurality of roller bearing engagements simultaneously, adopt the precompressed technology during production, the back clearance in the time of can eliminating reciprocal the rotation is so the present invention can be used for the automation equipment of precision drive; Range of transmission ratio of the present invention is minimum can to reach 1: 1, and can reverse rotation, thereby has widely than Worm and Worm Gear Driving and to use.In addition, the manufacturing of roller bearing carrier wheel no longer adopts modes such as gear hobbing, gear shaping to process teeth, but adopts the simple roller bearing carrier wheel that mills dumpling mode processing and assembling formula that bores, and manufacture difficulty is little, low cost of manufacture.
Description of drawings
Fig. 1 is a general principles structural drawing of the present invention, also can be used as Figure of abstract.
Fig. 2 is a concave circular arc turning surface envelope wheel construction schematic representation of the present invention, is cambered surface envelope wheel positive view.
Roller bearing carrier wheel construction schematic representation when Fig. 3 does not install roller bearing for the present invention, its roller bearing mounting hole is a round taper hole.
Fig. 4 is the structural representation of conical roller of the present invention.
Fig. 5 has installed the rudder shape roller bearing wheel construction schematic representation of conical roller for the present invention.
Fig. 6 is the side view of Fig. 5 of the present invention.
Fig. 7 is the A-A sectional view of Fig. 6 of the present invention.
Fig. 8 is a planetary roller structural representation of the present invention.
Fig. 9 is the spacing snap ring structural representation of the present invention.
Roller bearing carrier wheel construction schematic representation when Figure 10 does not install roller bearing for the present invention, its roller bearing mounting hole is a cylindrical hole.
Figure 11 is the structural representation of cylindricality roller bearing of the present invention.
Figure 12 has installed the rudder shape roller bearing wheel construction schematic representation of cylindricality roller bearing for the present invention.
Figure 13 is the side view of Figure 12 of the present invention.
Figure 14 is the B-B sectional view of Figure 13 of the present invention.
Wherein:
1, rudder shape roller bearing wheel
1-1, roller bearing carrier wheel
1-2, circular groove
1-3, axis hole
1-4, conical roller mounting hole
1-5, cylindricality roller bearing mounting hole
2, cambered surface envelope wheel
2-1, helical orbit groove
3, roller bearing
3-1, conical roller
3-2, cylindricality roller bearing
3-3, mate
3-4, bearing part
3-5, stop portion
3-6, restraining groove
3-7, the spherical tail end of cylindricality roller bearing
4, spacing snap ring
4-1, draw-in groove
5, planetary roller
5-1, taper planetary roller
5-2, cylindricality planetary roller
Embodiment
In the specific implementation; Roller bearing carrier wheel and cambered surface envelope wheel all adopt the rigid material manufacturing and heat-treat to increase surface hardness; Roller bearing and roller adopt bearing technology and material manufacture, and the mate of roller bearing can manufacture tack, also can manufacture round end.When adopting rudder shape roller bearing wheel of the present invention and cambered surface envelope wheel, at first confirm the requirement for bearing capacity of transmission, confirm the specification of roller bearing according to requirement for bearing capacity; Centre distance, the envelope of diameter, rudder shape roller bearing wheel and the cambered surface envelope wheel of the roller bearing quantity of taking turns according to velocity ratio design rudder shape roller bearing then, the diameter of roller bearing carrier wheel, cambered surface envelope wheel are taken turns the length that goes up cambered surface envelope part, the parameters such as pitch of helical orbit groove.Requirement for bearing capacity, velocity ratio according to concrete use condition requires, precision requirement, but rudder shape roller bearing wheel cambered surface envelope is taken turns meshing transmission structure seriation, standardized designs, to satisfy the demand of different field, distinct device, different application.
Present embodiment is example with the conical roller, in conjunction with accompanying drawing implementation method of the present invention is described.
Fig. 2 has shown the structure of concave circular arc turning surface envelope wheel.The manufacturing of cambered surface envelope wheel 2, the concave circular arc turning surface of processing wheel earlier, the concave circular arc diameter equals the diameter of roller bearing carrier wheel 1, mills with special purpose machine tool then or car becomes helical orbit groove 2-1.
As shown in Figure 3, get on the bus and dig and circular groove 1-2 that roller bearing carrier wheel is concentric in the plane on cylindrical roller bearing carrier wheel 1-1, at center drill axis hole 1-3 and mill inner hole key slot.The structure of conical roller is as shown in Figure 4; According to the bearing part of conical roller 3-1 and conical surface angle and the diameter of taper planetary roller 5-1; Confirm the specification of roller bearing carrier wheel 1-1 upper conical roller bearing mounting hole 1-4, equidistance drills through the taper open-work on the outer peripheral surface of roller bearing carrier wheel 1-1; The roller bearing carrier wheel that processes is heat-treated, make material meet the requirements of hardness.Then the taper open-work is carried out grinding fine finishing, confirm conical roller mounting hole 1-4 specification, and improve the surface roughness of internal surface of hole with accurate.
Fig. 5, Fig. 6, Fig. 7 have shown the rudder shape roller bearing wheel general structure that conical roller 3-1 is installed, and be clear for making drawing, do not show spacing snap ring in the sectional view.The taper planetary roller 5-1 that will have roller cage is installed among the conical roller mounting hole 1-4, then the heart conical roller 3-1 that packs into therein; As can be seen from the figure, after roller bearing was in place, the bearing part 3-4 of conical roller 3-1 and taper planetary roller 5-1 and conical roller mounting hole 1-4 closely cooperated, and constituted bearing structure, and the roller bearing mounting hole is the outer ring of bearing, and roller bearing is the inner ring of bearing; Stop portion 3-5 just in time arrives among the circular groove 1-2, and mate 3-3 exceeds the outer peripheral surface of roller bearing carrier wheel 1-1.Thick lower end is thin because conical roller 3-1 and taper planetary roller 5-1 are the upper ends, therefore in conical roller mounting hole 1-4, can not drop out from the lower end, hole because of pressure.The mate 3-3 of roller bearing is bigger slightly than bearing part 3-4 diameter, can prevent that planetary roller is in service to deviate from the roller bearing mounting hole; Spacing snap ring 4 is snapped in from circular groove 1-2, and each draw-in groove 4-1 just snaps among the roller bearing restraining groove 3-6, prevents that conical roller 3-1 from coming off from the roller bearing mounting hole.The rudder shape roller bearing that is called of the roller bearing carrier wheel image of roller bearing has been installed takes turns.
As shown in Figure 1; According to the designing requirement of central moment, respectively rudder shape roller bearing wheel 1 is installed on the bearing device through vertical 90 degree of bearing with cambered surface envelope wheel 2, the center line of the roller bearing mounting hole of the center line of cambered surface envelope wheel 2 and rudder shape roller bearing wheel 1 is at grade; Helical orbit groove 2-1 with the mate 3-3 arc of approach bread network of conical roller 3-1 wheel 2; After engagement was good, 2 pairs of rudder shape roller bearing wheels 1 of cambered surface envelope wheel formed envelope, and a plurality of roller bearing engagements are arranged simultaneously.When cambered surface envelope wheel 2 rotates; The roller bearing mate 3-3 that spiral chute track 2-1 promotion contacts with its track inclined-plane; The substantially horizontal of thrust divides force urges mate 3-3 to drive 1 rotation of roller bearing carrier wheel, and Vertical direction component makes conical roller 3-1 roll along the helical orbit rooved face; Conical roller 3-1 rotates at taper planetary roller 5-1 center, drives taper planetary roller 5-1 simultaneously and in the roller bearing mounting hole, rolls; The a plurality of roller bearings that mesh simultaneously, its stressed bearing point all in the plane at roller bearing center line place, making a concerted effort on direction of the engaging force of a plurality of roller bearings formation, promote rudder shape roller bearing and take turns 1 around its rotating shaft rotation.Between cambered surface envelope wheel 2 and the roller bearing 3, between roller bearing 3 and the planetary roller 5, between planetary roller 5 and the roller bearing carrier wheel 1-1, be roll contact and rolling friction all, with respect to the sliding friction of traditional worm and gear, its friction and wear reduces greatly.
In the present embodiment, roller bearing is cylindricality roller bearing 3-2, and its structure is shown in figure 11, and the bearing part 3-4 of roller bearing is cylindrical, and is corresponding, and the specification of roller bearing mounting hole is confirmed according to the bearing part 3-4 data of cylindricality roller bearing 3-2; 1-4 is different with the conical roller mounting hole; Cylindricality roller bearing mounting hole 1-5 can not all be an open-work; The cylindricality roller bearing 3-2 at center needs open-work to extend into its stop portion 3-5 among the circular groove 1-2, and cylindricality planetary roller 5-2 on every side then needs bottom support to keep its mounting point.So when adopting cylindricality roller bearing 3-2, the roller bearing mounting hole on the roller bearing carrier wheel 1-1 is similar to counterbore, promptly the top in hole is flat post hole; Diameter is big; Cylindricality roller bearing 3-2 and cylindricality planetary roller 5-2 can be installed, and the lower diameter in hole is little, allows cylindricality roller bearing 3-2 just to pass through.Roller bearing carrier wheel with cylindricality roller bearing mounting hole is shown in figure 10.
The rudder shape roller bearing wheel that the cylindricality roller bearing has been installed is shown in figure 12, and Figure 13 is the side view of Figure 12, and Figure 14 is the B-B sectional view of Figure 13.The cylindricality planetary roller 5-2 that will have roller cage is installed among the cylindricality roller bearing mounting hole 1-5, then the heart cylindricality roller bearing 3-2 that packs into therein; After roller bearing was in place, the bearing part 3-4 of cylindricality roller bearing 3-2 and cylindricality planetary roller 5-2 and cylindricality roller bearing mounting hole 1-5 closely cooperated, and constituted bearing structure, and the roller bearing mounting hole is the outer ring of bearing, and roller bearing is the inner ring of bearing.As can be seen from the figure, after cylindricality roller bearing 3-2 was in place in the cylindricality roller bearing mounting hole 1-5 of roller bearing carrier wheel 1-1, the spherical tail end 3-7 of cylindricality roller bearing just in time withstood on the interior facade of circular groove 1-2.When cylindricality roller bearing 3-2 rotates, and be rolling friction between the roller bearing carrier wheel.Spacing snap ring 4 is snapped among the roller bearing restraining groove 3-6 of cylindricality roller bearing 3-2 of roller bearing, prevent that cylindricality roller bearing 3-2 from coming off from the roller bearing mounting hole.
When adopting the cylindricality roller bearing, other designs, manufacturing process, the working principle of rudder shape roller bearing wheel and cambered surface envelope wheel are identical, and the conical roller situation among its implementation methods and the embodiment 1 is also identical.
Claims (7)
1. a rudder shape roller bearing wheel cambered surface envelope is taken turns meshing transmission structure, and it is characterized in that: it is made up of rudder shape roller bearing wheel and cambered surface envelope wheel, and rudder shape roller bearing wheel comprises roller bearing carrier wheel, roller bearing, planetary roller and roller bearing limit stoper; On the transmission engagement circumferential surface of roller bearing carrier wheel, the identical roller bearing mounting hole of structure that equidistantly distributes is arranged, the center line of roller bearing mounting hole and passes roller bearing carrier wheel center on the same cross section of roller bearing carrier wheel; Have on the plane of roller bearing carrier wheel and the concentric circular groove of roller bearing carrier wheel, the circular groove degree of depth can stretch into wherein the roller bearing stop portion; Roller bearing comprises mate, bearing part and stop portion, and this three part is the solid of rotation that forms around same central shaft, and the cross section of mate is greater than the bearing part cross section, and the mate end can be tack or round end; After roller bearing installed in the roller bearing mounting hole, its bearing part was in the roller bearing mounting hole, and stop portion extend among the circular groove, and mate exceeds roller bearing carrier wheel outer peripheral surface certain altitude, with cambered surface envelope wheel on the helical orbit groove be meshed; The bearing part of roller bearing is in the roller bearing mounting hole, and planetary roller is installed around it; Roller bearing mounting hole, planetary roller and roller bearing closely cooperate, and form bearing structure, and the roller bearing mounting hole is equivalent to the outer ring of bearing, and roller bearing is equivalent to the inner ring of bearing; The stop portion of roller bearing is connected with the roller bearing limit stoper in circular groove, makes roller bearing in the roller bearing mounting hole, rotate but can not detach the roller bearing mounting hole in the center of each planetary roller; The roller bearing carrier wheel of roller bearing has been installed, and the pole of figure resembles the rudder of steamer, is referred to as rudder shape roller bearing wheel; The profile of cambered surface envelope wheel is that concave circular arc centers on the turning surface that cambered surface envelope wheel central axis is rotarily formed, and this turning surface can form envelope to rudder shape roller bearing wheel, is referred to as concave circular arc turning surface envelope wheel, is called for short cambered surface envelope wheel; The diameter of concave circular arc equals roller bearing carrier wheel diameter; On the turning surface of cambered surface envelope wheel, the helical orbit groove is arranged, the pitch of helical orbit groove equates; The Normal section of helical orbit groove is consistent with the vertical sectional shape specification of roller bearing mate, makes helical orbit groove and the roller bearing mate can optimal engagement; Rudder shape roller bearing wheel becomes 90 degree staggered with cambered surface envelope wheel central shaft; Each roller bearing central axis of the central axis of cambered surface envelope wheel and rudder shape roller bearing wheel is in same plane; Rudder shape roller bearing wheel makes the roller bearing mate just in time engage into the helical orbit groove of cambered surface envelope wheel with the central moment of cambered surface envelope wheel, and cambered surface envelope wheel forms envelope to rudder shape roller bearing wheel.
2. rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure according to claim 1; It is characterized in that: when the bearing part periphery of roller bearing is conical surface; Be called conical roller, the roller bearing mounting hole on the roller bearing carrier wheel outer peripheral surface is a cone shape hole, and the conical roller mounting hole communicates with circular groove; Accordingly, planetary roller is the taper planetary roller, and its periphery also is a conical surface, and the outer conical surface virtual vertex of the bearing part of roller bearing, conical roller mounting hole, taper planetary roller is the center of roller bearing wheels.
3. rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure according to claim 1; It is characterized in that: when the bearing part periphery of roller bearing is the cylndrical surface; Be called the cylindricality roller bearing; Roller bearing mounting hole on the roller bearing carrier wheel outer peripheral surface is a cylindrical hole, and planetary roller is the cylindricality planetary roller, and the center line of cylindricality roller bearing mounting hole passes roller bearing wheels center; Cylindricality roller bearing mounting hole is made up of two-part up and down, and top is the big flat cylindrical hole of diameter, installation cylindricality roller bearing and cylindricality planetary roller; The bottom is the little cylindricality open-work of diameter, is positioned at the center, hole, communicates with circular groove, only allows the cylindricality roller bearing at center to pass through; The stop portion tail end of cylindricality roller bearing is a sphere.
4. rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure according to claim 1, it is characterized in that: the planetary roller in the roller bearing mounting hole has retainer, and retainer is combined in planetary roller on the fixing circumference; When planetary roller rolled around roller bearing, retainer rotated thereupon.
5. rudder shape roller bearing according to claim 1 wheel cambered surface envelope wheel meshing transmission structure, it is characterized in that: cambered surface envelope wheel is gone up the length of cambered surface envelope part, at most can envelope rudder shape roller bearing wheel half the.
6. rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure according to claim 1; It is characterized in that: when the design of cambered surface envelope wheel monofilament road; The pitch of the last helical orbit groove of cambered surface envelope wheel equates with the spacing of the last roller bearing of rudder shape roller bearing wheel or is the 1/n of roller bearing spacing that n is a positive integer; When the design of cambered surface envelope wheel multifibres road, the pitch that cambered surface envelope wheel is gone up the helical orbit groove is the integral multiple that rudder shape roller bearing wheel is gone up the roller bearing spacing.
7. rudder shape roller bearing wheel cambered surface envelope wheel meshing transmission structure according to claim 1; It is characterized in that: the roller bearing stop portion has restraining groove; The roller bearing limit stoper adopts circular spacing snap ring, and a plurality of opening draw-in grooves are arranged at spacing snap ring bottom, the roller bearing restraining groove position consistency after the snap ring diameter is in place draw-in groove and roller bearing; The corresponding roller bearing of each draw-in groove, draw-in groove snaps onto in the roller bearing restraining groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102303119A CN102338202A (en) | 2010-07-20 | 2010-07-20 | Meshing drive structure for rudder-shaped roller wheel and cambered-surface enveloping wheel |
| PCT/CN2011/076375 WO2012010042A1 (en) | 2010-07-20 | 2011-06-27 | Rudder-shaped roller gear and arched-surface-enveloped gear engaged drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102303119A CN102338202A (en) | 2010-07-20 | 2010-07-20 | Meshing drive structure for rudder-shaped roller wheel and cambered-surface enveloping wheel |
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| CN102338202A true CN102338202A (en) | 2012-02-01 |
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| CN2010102303119A Pending CN102338202A (en) | 2010-07-20 | 2010-07-20 | Meshing drive structure for rudder-shaped roller wheel and cambered-surface enveloping wheel |
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| CN (1) | CN102338202A (en) |
| WO (1) | WO2012010042A1 (en) |
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| CN105757216A (en) * | 2016-02-03 | 2016-07-13 | 李艳苇 | Spiral annular volute rail pure rolling speed reducer |
| CN110056610A (en) * | 2017-08-31 | 2019-07-26 | 赵若君 | A kind of worm gear |
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| CN102758880B (en) * | 2012-07-18 | 2015-09-30 | 武汉理工大学 | Bilateral is to worm gearing |
| CN106499774B (en) * | 2016-12-29 | 2018-10-30 | 成都中良川工科技有限公司 | A kind of transmission decelerating device |
| US11937890B2 (en) * | 2019-11-14 | 2024-03-26 | Intuitive Surgical Operations, Inc. | Direct drive for mechanical arm assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757216A (en) * | 2016-02-03 | 2016-07-13 | 李艳苇 | Spiral annular volute rail pure rolling speed reducer |
| CN105757216B (en) * | 2016-02-03 | 2017-11-10 | 李艳苇 | Spiral ring snail rail pure rolling speed reducer |
| CN110056610A (en) * | 2017-08-31 | 2019-07-26 | 赵若君 | A kind of worm gear |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012010042A1 (en) | 2012-01-26 |
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