CN103511575A - Ball screw device integrating dust prevention and lubrication - Google Patents
Ball screw device integrating dust prevention and lubrication Download PDFInfo
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- CN103511575A CN103511575A CN201210202068.9A CN201210202068A CN103511575A CN 103511575 A CN103511575 A CN 103511575A CN 201210202068 A CN201210202068 A CN 201210202068A CN 103511575 A CN103511575 A CN 103511575A
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- hole
- nut
- radial direction
- screw rod
- screw
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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
- 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
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H25/2418—Screw seals, wipers, scrapers or the like
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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
- 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
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0406—Absorption elements for lubricants, e.g. oil felts
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0497—Screw mechanisms
Abstract
The invention discloses a ball screw device integrating dust prevention and lubrication. The ball screw device is mainly composed of a screw, a nut, a plurality of balls, a transmission part, a backflow unit and two dust-prevention assemblies. According to the ball screw device, the inside structure of the nut is designed mainly, the transmission part arranged inside the nut is matched, and therefore lubrication of the inside of the ball screw can be achieved. Thus, the axial length of the nut can not be increased, and therefore the displacement route of the nut is kept; meanwhile, the transmission part is only used for transmitting lubricating oil and cannot provide the lubricating oil, and therefore the transmission part does not have the problem of service life. Finally, when the ball screw device is vertically arranged, due to a capillary phenomenon, the transmission part adsorbs the lubricating oil and overcomes earth gravity, the lubricating oil is transmitted from a lower transmission joint portion to an upper transmission joint portion, and the inside of the ball screw is lubricated similarly.
Description
Technical field
The present invention relates to a kind of ball screw, refer to that especially a kind of ball screw has dustproof and lubricated device concurrently.
Background technique
Current ball screw design is in order to prevent that dust or greasy dirt from entering the ball place between screw rod and nut, therefore can dispose dustproof and lubricating fitting at these nut two ends, simultaneously this dustproof and lubricating fitting can provide lubricated make ball can circulate smooth and easy, eliminate stress, yet dustproof and lubricating fitting miscellaneous can be because designing the different different defect that has.
Consult shown in Fig. 1, show the graphic of No. US6247556, U.S., it is mainly parallel to the blind hole 111 of screw rod 12 axis 121 in nut 11 processing one of ball screw, the dental groove 112 of corresponding nut 11 or the dental groove 122 of screw rod 12 radially run through processing respectively again, to form the radial direction oil hole 113 of this blind hole 111 of a plurality of connections and nut 11 dental grooves 112, after lubricant oil is injected by this blind hole 111, flow through this radial direction oil hole 113 and directly transport to the dental groove 112 of nut 11, to reach preferably lubrication effect, yet, when this ball screw arranged perpendicular, can cause lubricant oil because being subject to gravitational impact, cause flowing through in the radial direction oil hole 113 of this upper end, and enter nut 11 dental groove 112 places and be lubricated.
Consult shown in Fig. 2, show the graphic of No. 6450295, US Patent No., it is mainly inserted in respectively dust preventing component 16 after a solid lubricant 15 is inserted at nut 14 two ends again, respectively this dust preventing component 16 is except remaining on oiling agent 15 nut 14 inside, also can fixed solid oiling agent 15, yet, because the lubrication operation of this ball screw inside is to provide voluntarily lubricant oil by this solid lubricant 15, therefore this solid lubricant 15 has life cycle, cause and use upper essential necessity of changing, cause the defect of user's inconvenience.
Consult shown in Fig. 3, show the graphic of No. US6215968, U.S., it mainly directly arranges a Fuel Tanking Unit 18 in nut 171 1 side ends, and this Fuel Tanking Unit 18 is inner and screw rod 172 outer surfaces form an oil storage space 181, separately in this ball screw, dispose a fuel tank 191 outward, and between this fuel tank 191 and this Fuel Tanking Unit 18, dispose a pumping 192, by this pumping 192, the lubricant oil in fuel tank 191 is delivered in this Fuel Tanking Unit 18, use and bring nut 171 inside into after directly contacting with screw rod 172 and be lubricated, yet, this kind of Lubrication Design need additionally arrange this Fuel Tanking Unit 18 in a side end place of this nut 171, thereby increase nut 171 length and sacrifice displacement stroke.
Therefore, above-mentioned ball screw has dustproof and lubricated device concurrently, still has the place of various deficiencies.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of ball screw and has dustproof and lubricated device concurrently, and it mainly, when this ball screw is arranged perpendicular, is still lubricated operation.
Another technical problem to be solved by this invention is to provide a kind of ball screw and has dustproof and lubricated device concurrently, and it mainly solves the lubricated problem that has life cycle.
The technical problem that the present invention also will solve is to provide a kind of ball screw and has dustproof and lubricated device concurrently, and it can not increase the axial length of this ball screw nut, to maintain the displacement stroke of this nut.
For addressing the above problem, a kind of ball screw provided by the present invention has dustproof and lubricated device concurrently, comprises: a screw rod, has the screw thread ditch of being located at outer surface; One nut, be sheathed on this screw rod, and have an axis hole, that places and have an axis for this screw rod be located at this axis hole hole wall and form the sliding channel of a load path with this screw thread ditch, the oil guiding hole of parallel this axis, be communicated with more this oil guiding hole and this sliding channel radial direction oil hole and one with oil hole that wherein this radial direction oil hole communicates; A plurality of balls, circulating rolling in this load path; One conducting piece, is arranged at this nut, and has the biography junction that a conduction body portion and that is arranged at this oil guiding hole is arranged at this radial direction oil hole; One reflux unit, is located at this nut, and that for this ball-recirculation respectively, rolls turns to; Two dust preventing component, are sheathed on this screw rod, and are located at respectively the place, two ends of this nut axis hole and compress respectively this reflux assembly.
Preferably, described nut has more the flange part that an end and is in reverse to this end, and this oil guiding hole Shi Yougai end arranges towards this flange part direction.
Preferably, the radial direction oil hole quantity of described nut is two, wherein this radial direction oil hole be located at this end, another this radial direction oil hole is to be located at this flange part.
Preferably, the oil hole of described nut is provided in a side of this flange part.
Preferably, described conducting piece is felt or the adsorbing polymer of tool.
Preferably, described screw sleeve be provided with two with this conducting piece for the conductive rings of material, and this conductive rings is between this reflux assembly and this dust preventing component, this conductive rings has the internal ring portion that the outer portion and of being located at this radial direction oil hole is located at this screw flight ditch.
Secondly, for addressing the above problem, another kind of ball screw provided by the present invention has dustproof and lubricated device concurrently, comprises: a screw rod, has the screw thread ditch of being located at outer surface; One first nut, be sheathed on this screw rod, and have one and place and first axis hole, with a first axle is located at this first axis hole hole wall and is formed first sliding channel of one first load path with this screw thread ditch, the first oil guiding hole of parallel this first axle, is communicated with the first radial direction oil hole and the oil hole communicating with this first radial direction oil hole of this first oil guiding hole and this first sliding channel for this screw rod; One prepressing units, is sheathed on this screw rod and is arranged at an end face of this first nut; One second nut, be sheathed on this screw rod and compress this prepressing units, and have one and for this screw rod, place the second axis hole, this second axis hole and have one and be located at the second sliding channel of this second axis hole hole wall with coaxial the second axis, of this first axle, and this second sliding channel connects and establishes the second load path of this first load path, the second radial direction oil hole of the second oil guiding hole of parallel this second axis, this second oil guiding hole of connection and this second sliding channel with this screw thread ditch formation one; A plurality of balls, circulating rolling in this first and second load path; One conducting piece, is arranged at this first and second nut, and has a conduction body portion, that is arranged at this first and second oil guiding hole and be arranged at first of this first radial direction oil hole and pass junction and and be arranged at second of this second radial direction oil hole and pass junction; One first reflux unit, is located at this first nut, and that for this ball-recirculation respectively, rolls turns to; One second reflux unit, is located at this second nut, and that for this ball-recirculation respectively, rolls turns to; One first dust preventing component, is sheathed on this screw rod, and is located at the outboard end place of this first nut the first axis hole; One second dust preventing component, is sheathed on this screw rod, and is located at the outboard end place of this second nut the second axis hole.
Preferably, described the first nut has more a flange part, and this first radial direction oil hole is provided in a side of this flange part, and this oil hole is provided in a side of this flange part.
Preferably, described conducting piece is felt or the adsorbing polymer of tool.
Preferably, it is one first conductive rings and one second conductive rings with material that described screw sleeve is provided with this conducting piece, this first conductive rings is between this first reflux unit and this first dust preventing component, and there is the first internal ring portion that the first outer portion and of being located at this first radial direction oil hole is located at this screw flight ditch, this second conductive rings is between this second reflux unit and this second dust preventing component, and has the second internal ring portion that the second outer portion and of being located at this second radial direction oil hole is located at this screw flight ditch.
Preferably, described conducting piece is by a conductive sheet, one first conductive bars, and one second conductive bars form, wherein this conductive sheet be located at this first, between two nuts and by this prepressing units, compress, and there is the first end face and one second end face, this first conductive bars is to be located at this first nut, and have one be arranged at this first oil guiding hole first conduction body portion, one is arranged at this first biography junction of this first radial direction oil hole, and one and the first contacting part of this first end contact, this second conductive bars is to be located at this second nut, and have one be arranged at this second oil guiding hole second conduction body portion, one is arranged at this second biography junction of this second radial direction oil hole, and one and the second contacting part of this second end contact.
Ball screw of the present invention has dustproof and lubricated device concurrently, mainly for nut inside, carry out structural design, and be disposed at the conducting piece of this nut inside, can reach the lubricated of ball screw inside, can not increase the axial length of this nut, this conducting piece is only as the use of lubricant oil transmission simultaneously, there is no the problem in life cycle, when the present invention is vertical setting, by capillary phenomenon, make this conducting piece be adsorbed this lubricant oil and overcome centrifugal force, and lubricant oil is conducted to the biography junction that is positioned at upper side by the biography junction that is positioned at lower side, equally can be to ball screw internal lubrication.
Accompanying drawing explanation
Fig. 1 is the wherein graphic of US Patent No. 6247556;
Fig. 2 is the wherein graphic of US Patent No. 6450295;
Fig. 3 is the wherein graphic of US Patent No. 6215968;
Fig. 4 is the three-dimensional exploded view of first embodiment of the invention;
Fig. 5 is the combination section of first embodiment of the invention;
Fig. 6 is the use phase diagram of first embodiment of the invention, shows the vertically disposed state of ball screw of the present invention;
Fig. 7 is the combination section of second embodiment of the invention;
Fig. 8 is the combination section of third embodiment of the invention;
Fig. 9 is the combination section of fourth embodiment of the invention;
Figure 10 is the combination section of fifth embodiment of the invention.
Description of reference numerals
The 11st, nut 111 is blind holes
The 112nd, dental groove 113 is radial direction oil hole
The 12nd, screw rod 121 is axis
The 122nd, dental groove
The 14th, nut 15 is solid lubricants
The 16th, dust preventing component
The 171st, nut 172 is screw rods
The 18th, Fuel Tanking Unit 181 is oil storage space
The 191st, fuel tank 192 is pumpings
The 20th, screw rod 21 is screw thread ditches
The 30th, nut 31 is axis holes
The 311st, axis 312 is sliding channels
The 34th, oil guiding hole 35 is first radial direction oil hole
36 is that the second radial direction oil hole 37 is oil holes
A is load path
The 41st, ball 43 is reflux assemblies
The 45th, dust preventing component
The 50th, conducting piece 51 is conduction body portions
52, the 53rd, pass junction
61, the 62nd, conductive rings the 611, the 621st, outer portion
612, the 622nd, internal ring portion
20A is that screw rod 21A is screw thread ditch
30A is that the first nut 31A is the first axis hole
311A is that first axle 312A is the first sliding channel
32A is that the first oil guiding hole 33A is flange part
34A is that the first radial direction oil hole 35A is oil hole
36A is end face
B is the first load path
40A is prepressing units
50A is that the second nut 51A is the second axis hole
511A is that the second axis 512A is the second sliding channel
52A is that the second oil guiding hole 53A is the second radial direction oil hole
C is the second load path
61A is ball
63A is the first reflux assembly
65A is the second reflux assembly
67A is the first dust preventing component
69A is the second dust preventing component
70A is that conducting piece 71A is conduction body portion
72A is that the first biography junction 73A is the second biography junction
76A is that conductive sheet 761A is the first end face
762A is the second end face
77A is that the first conductive bars 771A is the first conduction body portion
772A is the first contacting part
78A is that the second conductive bars 781A is the second conduction body portion
782A is the second contacting part
81A is that the first conductive rings 811A is the first outer portion
812A is that the first internal ring portion 82A is the second conductive rings
821A is that the second outer portion 822A is the second internal ring portion
Embodiment
Consult shown in Fig. 4,5, a kind of ball screw that first embodiment of the invention provides has dustproof and lubricated device concurrently, it is mainly comprised of a screw rod 20, a nut 30, a plurality of ball 41, a conducting piece 50, a reflux unit and two dust preventing component 45, wherein:
This screw rod 20, has the screw thread ditch 21 of being located at outer surface.
This nut 30, be sheathed on this screw rod 20, and have one and place and have the axis hole 31 of an axis 311 for this screw rod 20, one is located at these axis hole 31 hole walls and forms the sliding channel 312 of load path A with this screw thread ditch 21, one end 32, one is in reverse to the flange part 33 of this end 32, Yi Yougai end 32 is towards the oil guiding hole 34 of these flange part 33 direction settings and parallel this axis 311, one is located at this flange part 33 and is communicated with the first radial direction oil hole 35 of this oil guiding hole 34 and this sliding channel 312, one is located at this end 32 and is communicated with the second radial direction oil hole 36 of this oil guiding hole 34 and this sliding channel 312, and the oil hole 37 being located at this flange part 33 and communicating with this first radial direction oil hole 35.
The plurality of ball 41, circulating rolling in this load path A.
This conducting piece 50 is strip and is felt or the adsorbing polymer of tool; This conducting piece 50 is arranged at this nut 30, and has the biography junction 52,53 that a conduction body portion 51 and that is arranged at this oil guiding hole 34 is arranged at this first and second radial direction oil hole 35,36.
This reflux unit, be located at this nut 30, for turning to of these ball 41 circulating rollings respectively, in the present embodiment, this reflux unit is two reflux assemblies 43, be located at respectively this nut 30 places, axis hole 31 two ends, to reach the end plug kenel that circulates to obtain, certainly also can be located at this nut 30 outside and be the kenel of outer loop, or the setting of other common form, and belong to common skill because this reflux unit supplies respectively turning to of these ball 41 circulating rollings, and it is all identical with common mode that it makes flowing mode, also non-emphasis of the present invention, therefore for the detailed structure of this member with make flowing mode and no longer describe in detail.
This two dust preventing component 45, is sheathed on this screw rod 30, and is located at respectively these nut 30 places, axis hole 31 two ends and compresses respectively this reflux assembly 43, uses and prevents that dust or greasy dirt from entering ball 41 places between this screw rod 20 and nut 30, and have dustproof effect.
The above is structure and the configuration explanation thereof of each main member of first embodiment of the invention.As for assembling mode of the present invention, please refer to the following description.
Consult shown in Fig. 5, when the present invention is while being horizontally disposed with, the lubricant oil (as shown by arrows) being injected by this nut 30 oil holes 37 is flowed through this first radial direction oil hole 35 and is arrived sliding channel 312 inside of this nut 30, so that the screw thread ditch 21 of this ball 41 and this screw rod 20 is respectively lubricated to operation, simultaneously, the biography junction 52 of being located at this conducting piece 50 of this first radial direction oil hole 35 can flood this lubricant oil, the biography junction 53 that makes this conducting piece 50 adsorb these lubricant oil and be conducted to another side by the biography junction 52 of this side, this lubricant oil is directed to this second radial direction oil hole 36 the most at last, to arrive sliding channel 312 inside of this nut 30, and screw thread 21 ditches of this ball 41 and this screw rod 20 are respectively lubricated to operation simultaneously, be with, the present invention is reached the lubricated of ball screw inside really effectively.
Accordingly, because the present invention carries out structural design for these nut 30 inside, and be disposed at the conducting piece 50 of these nut 30 inside, can reach the lubricated of ball screw inside, therefore, the present invention can not increase axial length, the shortening displacement stroke of this nut 30, to reach the object that maintains this nut displacement stroke.
In addition, the conducting piece 50 of these nut 30 inside that are disposed at only, as the use of lubricant oil transmission, can't provide lubricant oil voluntarily, therefore there is no the problem in life cycle, therefore the problem that need to replace when unlikely generation lubricant oil is not enough.
Consult shown in Fig. 6, when the present invention is vertical setting, the lubricant oil being injected by the oil hole 37 of nut 30 is flowed through this first radial direction oil hole 35 and is arrived sliding channel 312 inside of this nut 30, so that the screw thread ditch 21 of this ball 41 and this screw rod 20 is respectively lubricated to operation, in addition, the biography junction 52 of being located at this conducting piece 50 of this first radial direction oil hole 35 can flood this lubricant oil, and by capillary phenomenon (claiming capillarity), make this conducting piece 52 be adsorbed this lubricant oil and overcome centrifugal force, and this lubricant oil is directed to the biography junction 53 that is positioned at upper side from being positioned at the biography junction 52 of lower side, this lubricant oil is directed to this second radial direction oil hole 37 the most at last, to arrive sliding channel 312 inside of this nut 30, and the screw thread ditch 21 of this ball 41 and this screw rod 20 is respectively lubricated to operation simultaneously, be with, when the present invention is vertical setting, still be lubricated operation.
Consult shown in Fig. 7, a kind of ball screw that second embodiment of the invention provides has dustproof and lubricated device concurrently, it is comprised of a screw rod 20, a nut 30, a plurality of ball 41, a conducting piece 50, a reflux unit and two dust preventing component 45 equally, because its configuration and effect are same as the first embodiment, therefore repeat no more, be as for second embodiment's difference:
This screw rod 20 be arranged with two with this conducting piece 50 be the conductive rings 61 with material, 62, and this conductive rings 61, the 62nd, between this reflux assembly 43 and this dust preventing component 45, wherein this conductive rings 61 has the outer portion 611 of being located at this first radial direction oil hole 35, an and internal ring portion 612 of being located at these screw rod 20 screw thread ditches 21, and another this conductive rings 63 has the outer portion 621 of being located at this second radial direction oil hole 37, an and internal ring portion 622 of being located at these screw rod 20 screw thread ditches 21, accordingly, when this outer portion 61 respectively, 62 while absorbing lubricant oil, be able to fast lubricant oil be reached this screw rod 20 screw thread ditch 21 inside, allow the screw thread ditch 21 of this screw rod 20 really be lubricated.
Consult shown in Fig. 8, a kind of ball screw that third embodiment of the invention provides has dustproof and lubricated device concurrently, it is mainly comprised of a screw rod 20A, one first nut 30A, a prepressing units 40A, one second nut 50A, a plurality of ball 61A, a conducting piece 70A, one first reflux unit, one second reflux unit, one first dust preventing component 67A and one second dust preventing component 69A, because its effect is same as the first embodiment, therefore repeat no more, as for the configuration of the 3rd each member of embodiment be:
This screw rod 20A, has the screw thread ditch 21A that is located at outer surface.
This first nut 30A, be sheathed on this screw rod 20A, and have one and place and the first axis hole 31A, with a first axle 311A is located at this first axis hole 31A hole wall and forms the first sliding channel 312A of one first load path B with this screw thread ditch 21A, the first oil guiding hole 32A, a flange part 33A, of parallel this first axle 311A are located at this flange part 33A and are communicated with this first oil guiding hole 32A and oil hole 35A that the first radial direction oil hole 34A and of this first sliding channel 312A is located at this flange part 33A and communicates with this first radial direction oil hole 34A for this screw rod 20A.
This prepressing units 40A, is formed by the pre-compressing tablet of two C shapes, and this prepressing units 40A is sheathed on this screw rod 20A and is arranged at an end face 36A of this first nut 30A, and this end face 36A is in reverse to this flange part 33A.
This second nut 50A, be sheathed on this screw rod 20A and compress this prepressing units 40A, and have one and place the second axis hole 51A for this screw rod 20A, this second axis hole 51A has a second axis 511A coaxial with this first axle 311A, one is located at the second sliding channel 512A of this second axis hole 51A hole wall, and this second sliding channel 512A and this screw thread ditch 21A form one and meet the second load path C that establishes this first load path B, the second oil guiding hole 52A of one parallel this second axis 511A, one is communicated with the second radial direction oil hole 53A of this second oil guiding hole 52A and this second sliding channel 512A.
The plurality of ball 61A, circulating rolling in this first and second load path B, C.
This conducting piece 70A, be arranged at this first and second nut 30A, 50A, and there is a conduction body 71A of portion, that is arranged at this first and second oil guiding hole 32A, 52A and be arranged at first of this first radial direction oil hole 34A and pass junction 72A and and be arranged at second of this second radial direction oil hole 53A and pass junction 73A; In the present embodiment, this conduction body 71A of portion is compressed by this prepressing units 40A and has a little distortion.
Described the first reflux unit, be located at this first nut 30A, for turning to of this ball 41A circulating rolling respectively, in the present embodiment, this first reflux unit is 2 first reflux assembly 63A, be located at respectively this first nut 30A the first place, axis hole 31A two ends, to reach the kenel of end plug circulation, certainly also can be located at this first nut 30A outside and be that outer loop obtains kenel, or the setting of other common form, and belong to common skill because this first reflux unit supplies respectively turning to of this ball 41A circulating rolling, and it makes flowing mode all with common identical, also non-emphasis of the present invention, therefore for the detailed structure of this member with make flowing mode and no longer describe in detail.
Described the second reflux unit, be located at this second nut 50A, for turning to of this ball 41A circulating rolling respectively, in the present embodiment, this second reflux unit is 2 second reflux assembly 50A, be located at respectively this second nut 50A the first place, axis hole 51A two ends, to reach the end plug kenel that circulates to obtain, certainly also can be located at this second nut 50A outside and be the kenel of outer loop, or the setting of other common form, and belong to known skill because this second reflux unit supplies respectively turning to of this ball 41A circulating rolling, and it makes flowing mode all with common identical, also non-emphasis of the present invention, therefore for the detailed structure of this member with make flowing mode and no longer describe in detail.
Described the first dust preventing component 67A, is sheathed on this screw rod 20A, and is located at the outboard end place of this first nut 30A the first axis hole 31A and compresses this first reflux assembly 63A.
Described the second dust preventing component 69A, is sheathed on this screw rod 20A, and is located at the outboard end place of this second nut 50A the second axis hole 51A and compresses this second reflux assembly 65A.
The above is the structure of each main member of third embodiment of the invention and configuration explanation thereof, uses to reach another and can implement state.
Consult shown in Fig. 9, a kind of ball screw that fourth embodiment of the invention provides has dustproof and lubricated device concurrently, it is comprised of a screw rod 20A, one first nut 30A, a prepressing units 40A, one second nut 50A, a plurality of ball 61A, a conducting piece 70A, 2 first reflux assembly 63A, 2 second reflux assembly 65A, one first dust preventing component 67A and one second dust preventing component 69A equally, because its configuration and effect are same as the 3rd embodiment, therefore repeat no more, be as for the 4th embodiment's difference:
It is one first conductive rings 81A and one second conductive rings 82A with material that this screw rod 20A is arranged with this conducting piece 70A, this first conductive rings 81A is between this first reflux assembly 63A and this first dust preventing component 67A, and there is the first outer portion 811A that is located at this first radial direction oil hole 34A, an and first internal ring portion 812A who is located at this screw rod 20A screw thread ditch 21A, this second conductive rings 82A is between this second reflux assembly 65A and this second dust preventing component 69A, and there is the second outer portion 821A that is located at this second radial direction oil hole 53A, an and second internal ring portion 822A who is located at this screw rod 20A screw thread ditch 21A, use and reach another and can implement state.
Consult shown in Figure 10, a kind of ball screw that fifth embodiment of the invention provides has dustproof and lubricated device concurrently, it is comprised of a screw rod 20A, one first nut 30A, a prepressing units 40A, one second nut 50A, a plurality of ball 61A, a conducting piece, 2 first reflux assembly 63A, 2 second reflux assembly 65A, one first dust preventing component 67A and one second dust preventing component 69A equally, because its configuration and effect are same as the 3rd embodiment, therefore repeat no more, be as for the 5th embodiment's difference:
This conducting piece is comprised of a conductive sheet 76A, one first conductive bars 77A and one second conductive bars 78A, wherein:
This conductive sheet 76A is located between this first and second nut 30A, 50A and by this prepressing units 40A to compress, and has the first end face 761A and one second end face 762A.
This first conductive bars 77A is located at this first nut 30A, and has this first biography junction 72A and a first contacting part 772A who contacts with this first end face 761A that a first conduction 771A of body portion, that is arranged at this first oil guiding hole 32A is arranged at this first radial direction oil hole 34A.
This second conductive bars 78A is located at this second nut 50A, and has this second biography junction 73A and a second contacting part 782A who contacts with this second end face 762A that a second conduction 781A of body portion, that is arranged at this second oil guiding hole 52A is arranged at this second radial direction oil hole 53A.
Use and reach another and can implement state.
In sum; the various embodiments described above and diagram are only preferred embodiment of the present invention; when can not with restriction rights protection scope of the present invention, the equalization of generally doing according to the present patent application the scope of the claims changes and modifies, and all should remain within the scope of the patent.
Claims (10)
1. ball screw has dustproof and a lubricated device concurrently, it is characterized in that: comprise:
One screw rod, has the screw thread ditch of being located at outer surface;
One nut, be sheathed on described screw rod, and have an axis hole, that places and have an axis for this screw rod be located at this axis hole hole wall and form the sliding channel of a load path with this screw thread ditch, the radial direction oil hole of the oil guiding hole of parallel this axis, this oil guiding hole of a plurality of connection and this sliding channel and one with oil hole that wherein this radial direction oil hole communicates;
A plurality of balls, circulating rolling in described load path;
One conducting piece, is arranged at described nut, and has the biography junction that a conduction body portion and that is arranged at this oil guiding hole is arranged at this radial direction oil hole;
At least one reflux unit, is located at described nut, and that for this ball-recirculation respectively, rolls turns to;
Two dust preventing component, are sheathed on described screw rod, and are located at respectively the place, two ends of this nut axis hole.
2. ball screw as claimed in claim 1 has dustproof and lubricated device concurrently, it is characterized in that: described nut has more the flange part that an end and is in reverse to this end, and described oil guiding hole Shi Yougai end arranges towards this flange part direction.
3. ball screw as claimed in claim 2 has dustproof and lubricated device concurrently, it is characterized in that: the radial direction oil hole quantity of described nut is two, one of them radial direction oil hole be located at described end, another radial direction oil hole is to be located at described flange part.
4. ball screw as claimed in claim 1 has dustproof and lubricated device concurrently, it is characterized in that: described conducting piece is felt or the adsorbing polymer of tool.
5. ball screw as claimed in claim 1 has dustproof and lubricated device concurrently, it is characterized in that: described screw sleeve be provided with two with this conducting piece for the conductive rings of material, and this conductive rings is between this reflux assembly and this dust preventing component, described conductive rings has the internal ring portion that the outer portion and of being located at this radial direction oil hole is located at this screw flight ditch.
6. ball screw has dustproof and a lubricated device concurrently, it is characterized in that: comprise:
One screw rod, has the screw thread ditch of being located at outer surface;
One first nut, be sheathed on described screw rod, and have one and place and first axis hole, with a first axle is located at this first axis hole hole wall and is formed first sliding channel of one first load path with this screw thread ditch, the first oil guiding hole of parallel this first axle, is communicated with the first radial direction oil hole and the oil hole communicating with this first radial direction oil hole of this first oil guiding hole and this first sliding channel for described screw rod;
One prepressing units, is sheathed on described screw rod and is arranged at an end face of this first nut;
One second nut, be sheathed on described screw rod and compress this prepressing units, and have one and for this screw rod, place the second axis hole, this second axis hole and have one and be located at the second sliding channel of this second axis hole hole wall with coaxial the second axis, of this first axle, and this second sliding channel connects and establishes the second load path of this first load path, the second radial direction oil hole of the second oil guiding hole of parallel this second axis, this second oil guiding hole of connection and this second sliding channel with this screw thread ditch formation one;
A plurality of balls, circulating rolling in described first and second load path;
One conducting piece, is arranged at described first and second nut, and has a conduction body portion, that is arranged at this first and second oil guiding hole and be arranged at first of this first radial direction oil hole and pass junction and and be arranged at second of this second radial direction oil hole and pass junction;
At least one first reflux unit, is located at described the first nut, and that for this ball-recirculation respectively, rolls turns to;
At least one second reflux unit, is located at described the second nut, and that for this ball-recirculation respectively, rolls turns to;
One first dust preventing component, is sheathed on described screw rod, and is located at the outboard end place of this first nut the first axis hole;
One second dust preventing component, is sheathed on described screw rod, and is located at the outboard end place of this second nut the second axis hole.
7. ball screw as claimed in claim 6 has dustproof and lubricated device concurrently, it is characterized in that: described the first nut has more a flange part, and this first radial direction oil hole is provided in a side of this flange part, and this oil hole is provided in a side of this flange part.
8. ball screw as claimed in claim 6 has dustproof and lubricated device concurrently, it is characterized in that: described conducting piece is felt or the adsorbing polymer of tool.
9. ball screw as claimed in claim 6 has dustproof and lubricated device concurrently, it is characterized in that: it is one first conductive rings and one second conductive rings with material that described screw sleeve is provided with this conducting piece, this first conductive rings is between this first reflux unit and this first dust preventing component, and there is the first outer portion of being located at this first radial direction oil hole, and first internal ring portion of being located at this screw flight ditch, this second conductive rings is between this second reflux unit and this second dust preventing component, and there is the second outer portion of being located at this second radial direction oil hole, and second internal ring portion of being located at this screw flight ditch.
10. ball screw as claimed in claim 6 has dustproof and lubricated device concurrently, it is characterized in that: described conducting piece is by a conductive sheet, one first conductive bars, and one second conductive bars form, wherein this conductive sheet be located at this first, between two nuts and by this prepressing units, compress, and there is the first end face and one second end face, this first conductive bars is to be located at this first nut, and have one be arranged at this first oil guiding hole first conduction body portion, one is arranged at this first biography junction of this first radial direction oil hole, and one and the first contacting part of this first end contact, this second conductive bars is to be located at this second nut, and have one be arranged at this second oil guiding hole second conduction body portion, one is arranged at this second biography junction of this second radial direction oil hole, and one and the second contacting part of this second end contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202068.9A CN103511575B (en) | 2012-06-18 | 2012-06-18 | Ball screw has the dust-proof and device of lubrication concurrently |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210202068.9A CN103511575B (en) | 2012-06-18 | 2012-06-18 | Ball screw has the dust-proof and device of lubrication concurrently |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511575A true CN103511575A (en) | 2014-01-15 |
| CN103511575B CN103511575B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210202068.9A Active CN103511575B (en) | 2012-06-18 | 2012-06-18 | Ball screw has the dust-proof and device of lubrication concurrently |
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| Country | Link |
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| CN (1) | CN103511575B (en) |
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| CN105202351A (en) * | 2014-06-25 | 2015-12-30 | 上银科技股份有限公司 | Linear device with heating lubricating element and synthetic lubricating oil used by same |
| CN105443696A (en) * | 2014-08-29 | 2016-03-30 | 陆如东 | Novel ball screw |
| CN105840752A (en) * | 2015-01-12 | 2016-08-10 | 上银科技股份有限公司 | Limited travel ball screw |
| CN108561521A (en) * | 2018-07-18 | 2018-09-21 | 苏州德扬数控机械有限公司 | The lubrication system of lead screw device |
| CN109531358A (en) * | 2018-11-13 | 2019-03-29 | 苏州华亦扬传动科技有限公司 | Ball-screw processing technology, the outer rollaway nest grinding tool being related to and ball screw assembly, |
| CN110056621A (en) * | 2019-04-08 | 2019-07-26 | 北京聚才德荣科技发展有限责任公司 | A kind of central air-conditioning installation furred ceiling lead screw |
| CN110242719A (en) * | 2019-05-06 | 2019-09-17 | 浙江初光传动科技有限公司 | Screw mechanism and ball-screw apparatus |
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| CN110056621A (en) * | 2019-04-08 | 2019-07-26 | 北京聚才德荣科技发展有限责任公司 | A kind of central air-conditioning installation furred ceiling lead screw |
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| CN110242719B (en) * | 2019-05-06 | 2022-05-10 | 东田传动科技(嘉兴)有限公司 | Nut mechanism and ball screw device |
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|---|---|
| CN103511575B (en) | 2016-08-03 |
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