CN103511576B - There is the roller screw of introns - Google Patents
There is the roller screw of introns Download PDFInfo
- Publication number
- CN103511576B CN103511576B CN201210219592.7A CN201210219592A CN103511576B CN 103511576 B CN103511576 B CN 103511576B CN 201210219592 A CN201210219592 A CN 201210219592A CN 103511576 B CN103511576 B CN 103511576B
- Authority
- CN
- China
- Prior art keywords
- roller
- introns
- road
- path
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H2025/2271—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers with means for guiding circulating rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of roller screw with introns, comprise: screw rod; Nut, it is sheathed on this screw rod, has a load path between screw rod and nut; Return piece, it is located on this nut, has a backflow road be connected with this load path; Multiple roller, is located at this load path, and each roller has an outer diameter face; Multiple introns, are arranged between two rollers respectively, and the both sides of each introns have a maintenance recess respectively, and this maintenance recess has a vertical surface and two oblique, roller when load path, the outer diameter face of roller with wherein one oblique contact; Roller is when this backflow road, and the outer diameter face of roller contacts with this vertical surface.Whereby, the present invention has easy assembling, can improve the load carrying capacity of roller screw, and can avoid effect of interference mutually between roller.
Description
Technical field
The present invention relates to a kind of gearing assembly, refer to a kind of roller screw with introns especially.
Background technique
Roller screw now or linear slide rail more and more many in the application of industrial aspect, except as except the high precision effect of Linear transmission, other more have that frictional wear rate is little, energy conversion rate is high, noise is little and the advantage such as high rigidity is not fragile, therefore, roller screw or linear slide rail are not sayed yet can explain for the significance such as various commercial Application facility now.One of current roller screw or the normal rolling element used of linear slide rail design are exactly roller, and in order to the roller between element constantly can be circulated, eliminate stress, many improvement design all can install retainer on roller; But the design of different roller retainer has its defect to exist, so, how research and develop for the retainer of roller and improve out the emphasis that more competitive product becomes current industry naturally.
Refer to shown in Fig. 1, the perspective view of existing roller screw, can be learnt by figure, when roller 3 is arranged between screw rod 1 and nut 2 sliding channel 11,21, each roller 3 meeting oblique arrangement, makes the end of roller 3 contact with each other (position as label X indication), and when roller screw runs, will cause between roller 3 and roller 3 and produce abrasion, cause roller 3 end surface to be peeling, time serious, can cause stuck phenomenon that roller screw cannot be run.For solving certainly foregoing problems, market there is another kind of Inner eycle roller screw, refer to the U. S. Patent US6575632 case shown in Fig. 2 and Fig. 3, the diagonally opposing corner of roller 15 is arranged with a retainer 16 by it, this retainer 16 is positioned screw rod 17 with the tooth form track of nut (not shown), produces friction by this retainer 16 makes unlikely interference between roller 15 and roller 15; This improving technology seems and solves problem in the past, but still can produce other following problem after this technical application:
One, because roller is that single diagonal fixes a retainer, cause the retainer of roller that two non-load faces, side must be able to be allowed all to keep spacing not contact, but roller can produce a torsional interaction power to retainer when rotated, make roller can towards do not contact two non-load face deflections, make retainer position not easily fixing and easily come off, retainer comes off, and the problem that roller screw can be caused stuck produces;
They are two years old, because above-mentioned roller is that single diagonal fixes a retainer, this retainer is in order to can strong fix, roller needs certain thickness and material stress, roller can be avoided to come off easily, but the blocked up design of retainer but can allow the interval between roller and roller become large, causes the problem that overall roller quantity reduces, load carrying capacity reduces;
Its three, the design of this retainer is not easily assembled, even if after roller and retainer having been assembled, load between screw rod and nut difficult especially, and retainer needs again to be embedded in tooth form track, only contraposition just needs to spend many time, therefore it is many to cause the manufacture cost of roller screw to improve.
Based on the problem points of above-mentioned prior art, the present inventor, after research improvement, has the invention really reaching following goal of the invention to be born eventually.
In prior art:
Screw rod 1,17 sliding channel 11,21
Nut 2 roller 3,15
Retainer 16 contact position X
In the present invention:
Screw rod 1 sliding channel 11
Nut 2 rolling groove 21
Return piece 3 refluxes 31
Roller 4,4A, 4B outer diameter face 41
Introns 5 keep recess 51
The oblique face 512 of vertical surface 511
End face 52 side 53
Central point C1, C2, C3, C4 circular arc G1, G2, G3, G4, G3 '
Flip element 6 overturns 61
Gap H load path 90
Axle direction F, Y
Straight to center line B cross central line Q
Pushing force F sense of rotation R.
Summary of the invention
Main purpose of the present invention is to provide a kind of easy assembling and the load carrying capacity that can improve roller screw, and can avoid the roller screw with introns of interference mutually between roller.
Another object of the present invention is to, provide a kind of introns by pushing of roller, introns can be replied the roller screw with introns of position originally in time toppling over.
In order to reach above-mentioned purpose, solution of the present invention is:
There is a roller screw for introns, comprise:
One screw rod, it extends to strip structure with a direction, is provided with spiral helicine sliding channel in surface;
One nut, it is sheathed on this screw rod, and the relative sliding channel of this nut is provided with rolling groove, and the section of sliding channel and rolling groove is all V-shape, and sliding channel and rolling groove form a load path;
One return piece, it is located on nut, has a backflow road, and this backflow road is connected formation one circulating path with this load path;
Multiple roller, it is located in this circulating path, and each roller has an outer diameter face, and this outer diameter face contacts with sliding channel and rolling groove;
Multiple introns, it is arranged between each roller, each introns has two maintenance recesses, keep the accommodating roller of recess, each keeps recess to have a vertical surface and two oblique, this vertical surface is two between this oblique, and this vertical surface and two respectively has an angle between this oblique, and the true dip direction of oblique is towards the end slope of roller;
When roller is in load path, outer diameter face and the introns of roller keep recess wherein one oblique contact; Roller is when backflow road, and roller outer diameter face contacts with vertical surface.
Described introns also have both ends of the surface, and described end face is plane structure.
Described introns also have bi-side, and described side is convex structure.
The circular arc quantity of described bi-side is respectively one, the straight both sides to center line and cross central line that the central point of two circular arcs lays respectively at these introns.
The circular arc quantity of described bi-side is respectively two, and wherein two central points of side two circular arc lay respectively at the straight both sides to center line of these introns, and wherein the central point of a circular arc is positioned at the below of another center of arc's point; Two central points of another side two circular arc lay respectively at the straight both sides to center line of these introns, and wherein the central point of a circular arc is positioned at the below of another center of arc's point.
The roller screw that the present invention has introns also comprises a flip element, and it is arranged on nut, and has a upset road; This upset road is connected in the load path of described circulating path, forms a path of travel.
Described roller is located in this path of travel, is arranged in the same direction by the axle center of each roller in the load path of upset one end, road to backflow one end, road; Arranged in the same direction by the axle center of the upset road the other end to each roller in the load path of the backflow road the other end.
After adopting said structure, the progressive part that the present invention has the more existing roller screw of roller screw of introns is:
The roller screw that the present invention has introns has improved the assembling mode of existing roller screw, introns of the present invention are independent individual, install introns more first roller can be installed in load path in time assembling after, therefore assembling is very easy to, and significantly can shorten installation time.And introns of the present invention need not processed any structure in load path and arrange in pairs or groups with it, therefore more can save the processing cost of roller screw, also make assembling be more prone to.
It is minimum that introns of the present invention allow the spacing between two rollers be reduced to, and can hold the quantity of roller with increasing productivity path, allows the capability improving of roller screw integral load.
Introns of the present invention can effectively avoid the end of two rollers to produce interference, and design with spiral path (referring to load path) face of roller breasting (vertical surface and oblique face) that allows for straight line path (referring to the road that refluxes), make roller can run on load path, backflow road and upset road smoothly.
Side by introns is circular arc and designs for off normal, allow introns in assemble or run topple over time, can by pushing of roller righting introns, introns can be avoided to produce frictional interference with path of travel because of toppling over and draw the operation ringing roller.
Accompanying drawing explanation
Fig. 1 is the perspective view of existing roller screw;
Fig. 2 is that existing roller screw arranges the roller stereogram with retainer on screw rod;
Fig. 3 is the retainer of existing roller screw and the exploded view of roller;
Fig. 4 A to Fig. 4 C is the design concept schematic diagram of the present invention first preferred embodiment introns;
Fig. 5 is the stereogram of the present invention first preferred embodiment introns;
Fig. 6 is the roller screw stereogram that the present invention first preferred embodiment has introns;
Fig. 7 is the A-A sectional view of Fig. 6;
Fig. 8 is that nut removes by the roller screw that the present invention first preferred embodiment has introns, the kenel figure that display roller and introns arrange;
Fig. 9 is the B-B sectional view of Fig. 6;
Figure 10 is the roller screw end perspective view that the present invention first preferred embodiment has introns;
Figure 11 is that the present invention first preferred embodiment introns are in the kenel figure in reflux road and roller-contact;
Figure 12 is the present invention first preferred embodiment introns in the kenel figure of load path and roller-contact;
Figure 13 is the stereogram of the present invention second preferred embodiment introns;
Figure 14 is the C-C sectional view of Figure 13;
Figure 15 A to Figure 15 D is that the introns of toppling over are extruded the action diagram of righting by the present invention second preferred embodiment two roller;
Figure 16 is the stereogram of the present invention the 3rd preferred embodiment introns.
Embodiment
In order to explain technological scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
First, the introns structure of the present invention first preferred embodiment is described, refer to shown in Fig. 4 A to Fig. 4 C, for the design cycle schematic diagram of introns of the present invention, in existing common roller screw, roller arrangement mode has two kinds, and one is: the axle center of two adjacent roller arranges in the same direction, and it two is: the axle center of two adjacent roller arranges towards different direction, and the angle in two axle center is 90 degree, this kind of arrangement mode as shown in Figure 4 A.Introns 5 structural design of the present invention just comes from the axle center of two adjacent roller towards different direction arrangement mode roller screw, this is because the roller of different direction arrangement, can not mutually interfere between roller, also problem points as mentioned in the background can not be caused, therefore roller can run at a relatively high speed, to improve efficiency of movement, and the problem not having abrasion produces, but staggered form roller screw answer expenditure little, cause description is as rear.
Roller is its axle direction both sides load of roller screw of cross arrangement is identical, for only requiring that an axle direction load is high, other direction does not need the equipment (such as: the clamping mechanism of outgoing forming machine) bearing too large load, cannot be suitable for, therefore the identical roller screw application range of two axle direction load carrying capacities is just little, if but increase the load of equipment single axial, roller is the length that the roller screw of cross arrangement just need increase nut, a wherein unidirectional load carrying capacity is made to reach the demand of equipment, but the load carrying capacity of other direction then wastes, and too increase this axial nut length, therefore in order to not waste the load carrying capacity of other direction, need be just that the roller screw arranged in the same way solves by roller, because it has the characteristic that an axle direction load carrying capacity is greater than another axle direction load carrying capacity, therefore just can shorten the length of nut, the effective travel of roller screw is increased.
Edge this, introns of the present invention are that the roller screw arranged in the same way designs for roller, allow well its run smooth degree promote to improve industry utilization ratio, and detail design illustrate as rear:
Refer to shown in Fig. 4 A, as the direct concept cover by decussation roller is used in the roller screw arranged in the same way, can because introns 5 be cylindrical body, its volume causes more greatly the spacing between two rollers 4 to widen, roller 4 quantity that roller screw can be arranged reduces, and relatively causes the load carrying capacity of roller screw to reduce, but the main appeal point of roller screw is exactly high load, and this kind design oppositely reduces the load of roller screw, thus infeasible.Moreover, refer to shown in Fig. 4 B and Fig. 5, in order to reduce the gap between two rollers 4, the position, face contacted with roller 4 at cylindrical introns 5 cuts, and form two maintenance recesses 51, there is in each maintenance recess 51 vertical surface 511, vertical surface 511 can contact with roller 4, and roller 4 keeps roller 4 to be feasible with vertical surface 511 in the path of straight line, because two rollers 4 are parallel to each other in straight line path, but the present invention considers and roller 4 can tilt in spiral helicine load path (the roller angle that can tilt is set to inevitable phenomenon to an angular array, this is because the relation of spiral), and make the end of two rollers 4 produce interference (referring to shown in Fig. 1), if therefore in load path, keep roller 4 with the introns 5 of Fig. 4 B structure, certainly will cannot allow roller 4 tilt one angle arrange, and the spacing between roller 4 can be allowed to widen, relatively also lose and the meaning keeping recess 51 is set in introns 5, therefore in order to allow roller 4 can tilt in load path one angle arrange, and the distance that can not widen between two rollers 4, therefore, the present invention increases following design, refer to shown in Fig. 4 C and Fig. 5, the present invention arranges again in each maintenance recess 51 both sides and to be connected with vertical surface 511 and to have the oblique face 512 of an angle with vertical surface 511, oblique face 512 can absorb roller 4 in the angle of load path medium dip, and the spacing between roller 4 can not be allowed to widen, in addition, these introns also retain cylindrical introns external form, be a convex structure in side 53, end face 52 is a plane, introns 5 and path of travel so can be avoided to produce interfere, therefore the present invention consider roller and straight line path and spiral path completely kenel is set, really can meet to design one the introns that roller is the roller screw demand arranged in the same way.
Then, referring to shown in Fig. 6 to Figure 12, is the actual state description being used in roller screw of the present invention first preferred embodiment introns:
The roller screw of tool introns of the present invention, comprises: a screw rod 1, and it extends to strip structure with a direction, and this screw rod 1 surface is provided with spiral helicine sliding channel 11; One nut 2, it is sheathed on this screw rod 1, and is provided with the rolling groove 21 of relative sliding channel 11, and the section of this sliding channel 11 and rolling groove 21 is all V-shape, and sliding channel 11 and rolling groove 21 form a load path 90; One return piece 3, it is located on this nut 2, and has a backflow road 31, this backflow road 3) be connected to form a circulating path with load path 90; One flip element 6, is arranged on nut 2, and has a upset road 61, and this upset road 61 is connected in the load path 90 of circulating path, to form a path of travel;
Multiple roller 4, be located in path of travel, arranged in the same direction by the axle center of each roller 4A in the load path 90 of upset one end, road 61 to backflow one end, road 31, and arranged in the same direction by the axle center of upset road 61 the other end to each roller 4B in backflow road 31 the other end load path 90, therefore there is in roller screw the roller 4A of two groups of different direction arrangements, 4B, this mainly allows two axle direction T, the load of Y is different, and it is high to allow roller screw can be applicable to an axle direction load, and another axle direction does not need the equipment bearing too large load, as shown in Fig. 8 label, the load of axle direction T is greater than the load of axle direction Y, load carrying capacity size judges depending on roller quantity.And each roller 4 has an outer diameter face 41, this outer diameter face 41 contacts with sliding channel 11 and rolling groove 21;
Multiple introns 5, be arranged between each roller 4, introns arrange respectively in both sides and keep recess 51, recess 51 is kept to be accommodating for roller 4, and each recess 51 that keeps has vertical surface 511 and two oblique faces 512, this vertical surface 511 between two oblique faces 512, and respectively has an angle between vertical surface 511 and two oblique faces 512, and this oblique face 512 true dip direction is towards the end slope of roller 4; Wherein, roller 4 is when load path 90, as shown in Figure 10 and Figure 12, the outer diameter face 41 of roller 4 contacts with a wherein oblique face 512, therefore this roller 4 tiltable one angle is arranged, and the end between two rollers 4 has a gap H and can not produce interference, therefore the motion speed of roller 4 can be allowed to promote, relatively also improve smooth degree; Roller 4 is when backflow road 31, as shown in FIG. 9 and 10, the outer diameter face 41 of roller 4 contacts with vertical surface 511, because backflow road 31 major part is straight line path, run in a parallel manner between each roller 4, therefore be best by the maintenance of vertical surface 511, the parallelism between two rollers 4 can be guaranteed, and roller 4 can not be allowed to have the situation of inclination to cause roller 4 and backflow road 31 to produce interfere; In addition, the side 53 of introns 5 is a convex structure, end face 52 is a plane, and side 53 sliding channel 11 all relative to end face 52 and rolling groove 21 are arranged, therefore these introns 5 structure that can be arc-shaped by side 53 in time running is avoided producing large size with sliding channel 11 and rolling groove 21 and is interfered; And end face 52 is by the design of plane, introns 5 are allowed to have a spacing with sliding channel 11 and rolling groove 21, interference can not be produced when introns 5 are run in load path 90, and end face in the present embodiment 52 and side 53 are for being designed to optimal design, certainly also can be different structure.
Refer to shown in Figure 13 to Figure 15 D, the second embodiment of the present invention, this embodiment is different from the first preferred embodiment to be: the circular arc G1 of the bi-side 53 of introns 5, the central point C1 of G2, C2 is designed to the kenel of mutual dislocation, as shown in figure 14, two central point C1, C2 lays respectively at introns 5 directly to the both sides of center line B and cross central line Q, then, refer to shown in Figure 15 A to Figure 15 D, when introns 5 are in time assembling or operation topples over, by the circular arc G1 of bi-side 53, G2 off normal designs, the pushing force F that can produce in time running by roller 4, introns 5 are made to rotate these introns 5 of last righting, and the principle of righting introns 5 is because the non-circular arc G1 of point of contact that roller 4 outer diameter face 41 contacts with introns 5, the peak of G2, and roller 4 imposes a thrust in circular arc G1, during G2, circular arc G1, G2 will slide along the outer diameter face 41 of roller 4, slide into circular arc G1, during G2 end, outer diameter face 41 contacts with maintenance recess 51, and complete the action of introns 5 righting, thus, introns 5 can be avoided to produce frictional interference with path of travel because of toppling over and affect the operation of roller 4.All the other introns 5 structures and effect identical with the first preferred embodiment, then this no longer repeats more.
Refer to shown in Figure 16, the sectional view of the present invention the 3rd preferred embodiment introns, the present embodiment is different from the second preferred embodiment to be: the circular arc of each side 53 of introns 5 is made up of two or more, the present embodiment one side 53 is two circular arc G2, G3, another this side 53 is also two circular arc G1, G4, refer to shown in Figure 16, two circular arc G2 of the side 53 of top, the two central point C2 of G3, C3 lays respectively at directly to the both sides of center line B, and central point C3 is positioned at the below of central point C2, and circular arc G2 is connected with circular arc G3, and circular arc G3 comparatively circular arc G2 inside contracts [note: please refer to Figure 16, the meaning inside contracted refers to when circular arc G3 is by directly to line centered by center line B, mirror to offside forms a virtual circular arc G3 ', and the size of this virtual circular arc G3 ' is identical with circular arc G3, virtual circular arc G3 ' is positioned at inside circular arc G2, therefore circular arc G3 comparatively circular arc G2 inside contract], and two central point C1, C4 of side, below 53 liang of circular arcs G1, G4 of Figure 16 lay respectively at directly to the both sides of center line B, and central point C1 is positioned at the below of central point C4, and this circular arc G1 is connected with circular arc G4, and circular arc G1 comparatively circular arc G4 inside contract, moreover, the central point of bi-side 53 circular arc G1, G2, G3, G4 closes and is: two central point C1, C4 of bi-side 53 are one group, C2, C3 are one group, lay respectively at the both sides of cross central line Q, structure like this also can reach the effect of the second preferred embodiment, the introns 5 of toppling over can be allowed by the pushing force righting again of two rollers 4, produce frictional interference with path of travel to avoid introns 5 because of toppling over and draw the operation ringing roller 4, all the other introns 5 structures and effect identical, then this no longer repeats more.
Clearly demonstrating implementation feature of the present invention for asking, below illustrating that the present invention has progressive part and the practical way of the more existing roller screw of roller screw of introns:
The present invention has improved the assembling mode of prior art, and introns of the present invention are independent individual, installs introns after first roller can being installed in load path in time assembling again, therefore assembling is very easy to, and significantly can shorten installation time.And introns of the present invention need not processed any structure in load path and arrange in pairs or groups with it, therefore more can save the processing cost of roller screw, also make assembling be more prone to.
Introns of the present invention can effectively avoid the end of two rollers to produce interference, and design with spiral path (referring to load path) face of roller breasting (vertical surface and oblique face) that allows for straight line path (referring to the road that refluxes), make roller can run on load path, backflow road and upset road smoothly.
It is minimum that introns of the present invention allow the spacing between two rollers be reduced to, and can hold the quantity of roller with increasing productivity path, allows the capability improving of roller screw integral load.
Side by introns is circular arc and designs for off normal, allow introns in assemble or run topple over time, can by pushing of roller righting introns, introns can be avoided to produce frictional interference with path of travel because of toppling over and draw the operation ringing roller.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (8)
1. there is a roller screw for introns, it is characterized in that, comprise:
One screw rod, it extends to strip structure with a direction, is provided with spiral helicine sliding channel in surface;
One nut, it is sheathed on this screw rod, and the relative sliding channel of this nut is provided with rolling groove, and the section of sliding channel and rolling groove is all V-shape, and sliding channel and rolling groove form a load path;
One return piece, it is located on nut, has a backflow road, and this backflow road is connected formation one circulating path with this load path;
Multiple roller, it is located in this circulating path, and each roller has an outer diameter face, and this outer diameter face contacts with sliding channel and rolling groove;
Multiple introns, it is arranged between each roller, each introns has two maintenance recesses, keep the accommodating roller of recess, each keeps recess to have a vertical surface and two oblique, this vertical surface is two between this oblique, and this vertical surface and two respectively has an angle between this oblique, and the true dip direction of oblique is towards the end slope of roller; Described introns also have bi-side, and described side is convex structure, and the circular arc quantity of described bi-side is respectively one, the straight both sides to center line and cross central line that the central point of two circular arcs lays respectively at these introns;
When roller is in load path, outer diameter face and the introns of roller keep recess wherein one oblique contact; Roller is when backflow road, and roller outer diameter face contacts with vertical surface.
2. have the roller screw of introns as claimed in claim 1, it is characterized in that: described introns also have both ends of the surface, described end face is plane structure.
3. there is the roller screw of introns as claimed in claim 1, it is characterized in that: more comprise a flip element, it is arranged on nut, and there is a upset road; This upset road is connected in the load path of described circulating path, forms a path of travel.
4. there is the roller screw of introns as claimed in claim 3, it is characterized in that: described roller is located in this path of travel, arranged in the same direction by the axle center of each roller in the load path of upset one end, road to backflow one end, road; Arranged in the same direction by the axle center of the upset road the other end to each roller in the load path of the backflow road the other end.
5. there is a roller screw for introns, it is characterized in that, comprise:
One screw rod, it extends to strip structure with a direction, is provided with spiral helicine sliding channel in surface;
One nut, it is sheathed on this screw rod, and the relative sliding channel of this nut is provided with rolling groove, and the section of sliding channel and rolling groove is all V-shape, and sliding channel and rolling groove form a load path;
One return piece, it is located on nut, has a backflow road, and this backflow road is connected formation one circulating path with this load path;
Multiple roller, it is located in this circulating path, and each roller has an outer diameter face, and this outer diameter face contacts with sliding channel and rolling groove;
Multiple introns, it is arranged between each roller, each introns has two maintenance recesses, keep the accommodating roller of recess, each keeps recess to have a vertical surface and two oblique, this vertical surface is two between this oblique, and this vertical surface and two respectively has an angle between this oblique, and the true dip direction of oblique is towards the end slope of roller; Described introns also have bi-side, described side is convex structure, the circular arc quantity of described bi-side is respectively two, wherein two central points of side two circular arc lay respectively at the straight both sides to center line of these introns, and wherein the central point of a circular arc is positioned at the below of another center of arc's point; Two central points of another side two circular arc lay respectively at the straight both sides to center line of these introns, and wherein the central point of a circular arc is positioned at the below of another center of arc's point;
When roller is in load path, outer diameter face and the introns of roller keep recess wherein one oblique contact; Roller is when backflow road, and roller outer diameter face contacts with vertical surface.
6. have the roller screw of introns as claimed in claim 5, it is characterized in that: described introns also have both ends of the surface, described end face is plane structure.
7. there is the roller screw of introns as claimed in claim 5, it is characterized in that: more comprise a flip element, it is arranged on nut, and there is a upset road; This upset road is connected in the load path of described circulating path, forms a path of travel.
8. there is the roller screw of introns as claimed in claim 7, it is characterized in that: described roller is located in this path of travel, arranged in the same direction by the axle center of each roller in the load path of upset one end, road to backflow one end, road; Arranged in the same direction by the axle center of the upset road the other end to each roller in the load path of the backflow road the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219592.7A CN103511576B (en) | 2012-06-29 | 2012-06-29 | There is the roller screw of introns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219592.7A CN103511576B (en) | 2012-06-29 | 2012-06-29 | There is the roller screw of introns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511576A CN103511576A (en) | 2014-01-15 |
| CN103511576B true CN103511576B (en) | 2015-12-16 |
Family
ID=49894803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219592.7A Active CN103511576B (en) | 2012-06-29 | 2012-06-29 | There is the roller screw of introns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511576B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609819A (en) * | 2015-10-21 | 2017-05-03 | 王心成 | External circulation cross roller lead screw pair and application method |
| JP6381703B2 (en) * | 2017-02-23 | 2018-08-29 | Thk株式会社 | Screw device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547023A (en) * | 1983-04-18 | 1985-10-15 | W. Schneeberger Ag, Maschinenfabrik | Circulating roller bearing |
| US4687345A (en) * | 1985-07-16 | 1987-08-18 | Nippon Thompson Co., Ltd. | Linear motion roller bearing assembly having a roller separator |
| CN2415208Y (en) * | 2000-03-22 | 2001-01-17 | 上银科技股份有限公司 | Ball-screw with spacer |
| TWM266381U (en) * | 2004-11-26 | 2005-06-01 | Hiwin Tech Corp | Ball spacer |
| TW200622119A (en) * | 2004-11-12 | 2006-07-01 | Thk Co Ltd | Roller screw |
| TW200951325A (en) * | 2008-06-12 | 2009-12-16 | Hiwin Tech Corp | Ball screw having a plurality of circulating devices cooperating with a pluraity of spiral grooves |
-
2012
- 2012-06-29 CN CN201210219592.7A patent/CN103511576B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547023A (en) * | 1983-04-18 | 1985-10-15 | W. Schneeberger Ag, Maschinenfabrik | Circulating roller bearing |
| US4687345A (en) * | 1985-07-16 | 1987-08-18 | Nippon Thompson Co., Ltd. | Linear motion roller bearing assembly having a roller separator |
| CN2415208Y (en) * | 2000-03-22 | 2001-01-17 | 上银科技股份有限公司 | Ball-screw with spacer |
| TW200622119A (en) * | 2004-11-12 | 2006-07-01 | Thk Co Ltd | Roller screw |
| TWM266381U (en) * | 2004-11-26 | 2005-06-01 | Hiwin Tech Corp | Ball spacer |
| TW200951325A (en) * | 2008-06-12 | 2009-12-16 | Hiwin Tech Corp | Ball screw having a plurality of circulating devices cooperating with a pluraity of spiral grooves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103511576A (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1555447B1 (en) | Universal guide device and moving table device using same | |
| RU2664222C2 (en) | Pull-out guide for movable furniture parts | |
| CN104163227A (en) | Bicycle sprocket and bicycle crank assembly | |
| KR101953941B1 (en) | Cross roller bearing | |
| US5248203A (en) | Retainer for use in a linear motion rolling contact guide unit | |
| US9157479B2 (en) | Finite linear motion guide unit with cross-roller bearing system | |
| CN103511576B (en) | There is the roller screw of introns | |
| US7908938B2 (en) | Ball screw module | |
| CN201818656U (en) | Four-way equal-load type linear rolling guide rail pair | |
| US20120014628A1 (en) | Linear motion guide unit with cage | |
| CA2477628A1 (en) | Segmented ball/roller guide for a linear motion bearing | |
| TWI651477B (en) | Motion guiding device | |
| US20140352471A1 (en) | Motion guide device, ball screw assembly, and end cap | |
| CN102434585B (en) | Linear bearing sliding mechanism | |
| US20140352470A1 (en) | Ball screw assembly and wiper | |
| US20100050801A1 (en) | Ball screw module | |
| CN202484086U (en) | Rolling linear guide rail pair adopting drum-shaped rollers | |
| US20080193268A1 (en) | Load-Handling Means with Rolling-Body Circulatory Guidance | |
| US4735514A (en) | Roller bearing for an infinite rectilinear motion | |
| CN201747781U (en) | Ball heavy-load linear guide rail pair with retaining chains | |
| WO2018013169A1 (en) | Nonmetallic bearing on bearing assembly | |
| EP2855973B1 (en) | Energy chain system | |
| JP5397645B1 (en) | Roller screw device with spacer | |
| CN216077970U (en) | Multipoint surface contact type sliding guide rail assembly | |
| CN220302559U (en) | Cross roller guide rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |