CN108730461A - Ball leading screw driving device with the end seal in main body and end cap - Google Patents
Ball leading screw driving device with the end seal in main body and end cap Download PDFInfo
- Publication number
- CN108730461A CN108730461A CN201810348752.5A CN201810348752A CN108730461A CN 108730461 A CN108730461 A CN 108730461A CN 201810348752 A CN201810348752 A CN 201810348752A CN 108730461 A CN108730461 A CN 108730461A
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- CN
- China
- Prior art keywords
- channel
- main body
- leading screw
- driving device
- screw driving
- Prior art date
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Classifications
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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
-
- 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
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/063—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body, e.g. a carriage or part thereof, provided between the legs of a U-shaped guide rail or track
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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
-
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The present invention relates to a kind of ball leading screw driving devices with the end seal in main body and end cap.The ball leading screw driving device（10）With the first main body（41）, the first and second end caps（61；62）And first and second end seal.According to the present invention, first end sealing element is accommodated in first end cover（61）In, wherein corresponding alignment bumps are embedded into first end cover（61）On the first alignment recess in, wherein the second end sealing element is adjacent to second end cover（62）It is contained in the first main body（41）In, wherein corresponding alignment bumps are embedded into the first main body（41）In the second alignment recesses in.
Description
Technical field
The present invention relates to ball leading screw driving devices as described in the preamble according to claim 1.
Background technology
From network address
It can be retrieved in the catalogue on March 22nd, 2017 and learn a kind of ball leading screw driving device, be linear motion device
Component part.
In addition, a kind of end seal for ball leading screw driving device as known to 29 28 717 A1 of DE.Two ends
Portion's sealing element is disposed in the main body of ball leading screw driving device.In order to determine the rotation position of end seal, the end
Portion's sealing element is equipped with alignment bumps, which is embedded into the matched alignment recesses in the main body.Appearance in main body
The manufacture of profile received is high expends and expensive.
Invention content
The advantages of ball leading screw driving device of the present invention, is that its manufacture is particularly simple and cost advantages.This
Outside, the ball leading screw driving device can be easily used as the component part with the linear motion device of U-shaped guide rail.This
Outside, the error when installing ball leading screw driving device is avoided.
According to independent claims, it is proposed that first end sealing element is contained in first end cover, wherein corresponding right
Quasi- protrusion is embedded into the first alignment recesses in first end cover, wherein the second end sealing element adjacent to second end cover is held
It is contained in the first main body, wherein corresponding alignment bumps are embedded into the second alignment recesses in the first main body.First alignment is recessed
Portion and the first alignment bumps are fabricated to especially cost advantages.Nevertheless, can be incited somebody to action by the displacement of the second alignment bumps
The rotation position of end seal is infinitely matched to the different screw pitch of thread groove.
First and second end caps are preferably made from plastic, and wherein it is most preferably fabricated in a manner of injection molding.It is main
Body is preferably made of steel, and wherein it is preferably fabricated in cutting mode.It is preferred at least one screw channel
There are two first be bent to turn to channel for distribution respectively, and the first of described two bendings turn to the group that channel is first circulation channel
At part.
The advantageous expansion scheme and improvement project of the present invention are given in the dependent claims.
It can provide, the first and second end seals are constructed identically.Thus, it is possible in a manner of cost advantages pair
It is manufactured in large quantity.
It can provide, the first and second end caps are constructed identically.Thus, it is possible to be carried out to it in a manner of cost advantages
It manufactures in large quantity.As a result on, second end cover also is provided with the first receiving recess portion and the first alignment recesses, although they are not made
With.
It can provide, there are one unique first alignment recesses, wherein first end sealing element to have one for first end cover tool
A unique alignment bumps.It also can be by multiple alignment recesses be set on involved end cap to the difference of thread groove
Screw pitch takes in.However, thus this can lead to the mistake installation of end seal.By means of the invention it is possible to avoid using more
A alignment recesses, wherein remaining able to realize the different screw pitch of thread groove.
It can provide, there are one unique second alignment recesses, wherein the second end sealing element to have one for the first main body tool
A unique alignment bumps.Thus it about the second end sealing element, has obtained and has been previously with regard to first end sealing element and is explained
Identical advantage.
It can be provided with individual guide rail, axis is extended the guide rail with constant, U-shaped cross-section shape along longitudinal direction, wherein
At least one guiding channel for being parallel to longitudinal axis extension is arranged between the peripheral surface of nut and the inner surface of guide rail,
Described at least one guiding channel be respectively provided with the second of two bendings and turn to channels, the second of described two bendings turn to it is logical
Continuous second circulation channel is collectively formed with guiding channel and the second backward channel in road, is accommodated in the second circulation channel
One arranges the 2nd ball, wherein the second steering channel is disposed in first end cover and second end cover.In general, ball leading screw driving fills
The nut set is not provided with end cap, and wherein ball is diverted through tumbler or returns skirt to realize.In the solution proposed
In, the first and second end caps are not used in the steering of the ball of ball leading screw driving device, but for being filled with ball leading screw driving
Set the steering of the ball for the linear guide apparatus being used together.These end caps can be so matched with less consuming so that
They accommodate the end seal of ball leading screw driving device.
Can provide, first circulation channel include two bending first turn to channels, first turn of described two bendings
It is respectively disposed to channel in the individual steering component that one is loaded into the first main body.This ball leading screw driving dress
Be set to especially cost advantages and less running noise is generated in the process of running.
Can provide, at least one first backward channel and/or at least one second backward channel directly by
First main body directly limits.This ball leading screw driving device is especially cost advantages.
Can provide, first end cover have lubrication interface, the lubrication interface by the lubrication channel in first end cover both with
At least one second turns to channel, and is fluidly connected at least one of threaded spindle thread groove, threaded spindle limit
Determine the screw channel of subordinate.Thus, it is possible to be moistened to all ball-recirculations in nut by a unique lubrication interface
It is sliding.As long as the first and second end caps are constructed identically, then lubricate interface and lubrication channel also can have in second end cover.
It is preferred that do not use these, because based in the second end sealing element prevent the ball in lubricant arrival first circulation channel.
First end sealing element in first end cover will not hinder to lubricate path accordingly.On the contrary, the first end sealing element prevents
Lubricant, such as lubricating grease or lubricating oil are flowed outwardly from nut interior.
The guide bracket individually constructed with nut can be set, and the guide bracket is in such a way that such as nut is identical and at guide rail
It is engaged in ball, wherein guide bracket is not in ball with threaded spindle and engages, wherein third end cap there are two guide bracket tools,
The third end cap is fastened on the longitudinal end of the second main body set relatively, wherein third end cap and the first and second ends
Lid the difference is that, lubrication channel is closed on the direction towards threaded spindle.Preferably, in addition to the installation of explained later
Except protrusion, there is no other differences between first to third end cap.Second main body and the first main body difference are preferably only
It is that unnecessary profile has been omitted or simplified.For function, such as guiding function all necessary profiles in the first and
It is preferably constructed identically in second main body.
It can provide, first to third end cap is respectively provided with an installation protrusion, which is disposed in involved
End cap different location on, wherein installation protrusion is respectively embedded in the mounting recess of the subordinate in involved main body.By
This is avoided replaces different end caps in fitting limit.As long as the first and second end caps are constructed identically, then protrusion is installed
It also is located on identical position.
The claimed combination with multiple ball leading screw driving devices according to the present invention, wherein single ball screw
The first and second end caps, the first and second end seals of transmission device construct in the same manner respectively, wherein at least one screw thread
The length of the screw pitch in channel and/or the first main body of single ball leading screw driving device is constructed differently from one another.
It is above-mentioned and will be explained below it should be understood that without departing from the scope of the invention
Feature can not only be used with the combination that accordingly provides, and with other combinations or can be used alone.
Description of the drawings
The present invention will be explained in greater detail by means of attached drawing below.Wherein：
Fig. 1 shows the perspective view of ball leading screw driving device according to the present invention；
Fig. 2 shows the cross sections of the ball leading screw driving device of the line A-A in Fig. 1；
Fig. 3 shows the perspective view of the first main body；
Fig. 4 shows the perspective view of the first or second end cap from the first main body；
Fig. 5 shows the perspective view of the third end cap from the second main body；
Fig. 6 shows another perspective view of the first, second, and third end cap；And
Fig. 7 is the perspective view for showing first or second end seal.
Specific implementation mode
Fig. 1 shows the perspective view of linear motion device 10 according to the present invention.Linear motion device 10 includes guide rail 30,
Axis 11 is extended the guide rail with constant, U-shaped cross-section shape along longitudinal direction.Herein, nut 40 and guide bracket 90 are along vertical
It is movably supported on guide rail 30 to the direction of axis 11.Nut 40 and guide bracket 90 are preferably respectively by multiple rows of continuous
Circular ball is supported on guide rail 30.It also can there is only nuts 40.
Further it is provided that the threaded spindle 20 that can be rotated about longitudinal axis 11.Threaded spindle 20 is on its peripheral surface 21
Equipped at least one thread groove 22 about 11 spiral extension of longitudinal axis.The threaded spindle is screwed with nut 40 and is engaged,
So that thread groove 22 and the matched nut groove on nut 40（Reference numeral 54 in Fig. 3）Screw channel is collectively formed
（Reference numeral 12 in Fig. 3）.Guide bracket 90 is not screwed with threaded spindle 20 preferably and is engaged, and wherein the guide bracket passes through
Connecting component（It is not shown）The direction of axis 11 is permanently connected with nut 40 along longitudinal direction.Mentioned screws engagement with ball wire
The mode of bar transmission device comes the ball of continued circling in involved guide bracket 90 to realize by means of at least one.Nut
40 are permanently connected with individual estrade component 51 herein, which can also be placed in guide bracket 90.
It is opposite in the direction of the axis along longitudinal direction 11 of guide rail 30 and be fastened with the first and second ends on the longitudinal end set
Ontology 101；102.The second end ontology 102 is configured to the flat plate for the thickness for having constant, and the plate is transverse to longitudinal axis
Line 11 is arranged.Swivel bearing 103 is accommodated in the second end ontology 102, which is preferably constructed in radial zanjon
Ball bearing（Radialrillenkugellager）.Threaded spindle 20 is rotatably supported in rotation relative to longitudinal axis 11
In bearing 103, wherein corresponding supporting member is preferably constructed in floating bearing so that it is not subject to the direction of axis 11 along longitudinal direction
The power of direction.First end ontology 101 is formed for fastening motor（It is not shown）Flange 104.In addition, the first end sheet
Body is formed for accommodating（It is invisible）The casing section 105 of connector, threaded spindle 20 and the transmission axle journal of motor pass through institute
It states connector and is in rotation drive connection.In addition, threaded spindle 20 is preferably by means of angular contact ball bearing（Schrä
gkugellager）It is rotatably supported in first end ontology 101.Corresponding supporting member is preferably constructed in fixing axle
It holds so that it can bear the power that the direction of axis 11 along longitudinal direction is directed toward.
Individual sensor stand 106 abuts against on the U-shaped supporting leg of guide rail 30, and the sensor stand is along entire guide rail 30
Extended with constant cross-sectional shape.Sensor stand 106 is preferably made of aluminium, and wherein the sensor stand is most preferably to squeeze
Molding method manufacture.It is opposite in the direction of the axis along longitudinal direction 11 of sensor stand 106 and be respectively arranged on the end set
Individual secure component 107.Secure component 107 and the fastening grooves of the subordinate on sensor stand 106 clamp, wherein described tight
Gu the end body 101 of component and subordinate respectively；102 screw.
Fig. 2 shows the cross sections of the linear motion device of the line A-A in Fig. 1.The sectional plane is transversely to the machine direction axis
Line 11 orients, and wherein the sectional plane cuts the first and second circulation canals 14；15.Herein, four second are arranged in total
Circulation canal 15 accommodates the second ball 17 of the difference continued circling of a vollyball shape respectively in the second circulation channel.
Each second circulation channel 15 includes the guiding channel 13 and the second backward channel 47 for being respectively parallel to the extension of longitudinal axis 11.The
Two backward channels 47 are directly built into the first main body 41.In guiding channel 13, the second ball 17 is in guide rail 30 and subordinate
Running track backing member 82 between by transmit load in a manner of roll.Guiding channel 13 and the second backward channel 47 its along longitudinal direction
On two ends that the direction of axis 11 is opposite and sets channel is turned to by second respectively（Reference numeral 45 in Figure 4 and 5）Phase
It connects.
The first spherical ball（It is invisible in fig. 2）In thread groove in a manner of transmitting and load（Attached drawing mark in Fig. 1
Note 22）It is rolled in spiral screw channel 12 between the inner peripheral surface 42 of nut 40.The directly structure in the first main body 41
The first backward channel 46 is made, which is parallel to the extension of longitudinal axis 11.Screw channel 12 and first returns logical
Road 46 turns to channel by the first of bending and is connected with each other.First turns to channel as with 102016223233.9 He of document number
102016214964.4 German patent application theme.
In addition, in fig. 2, it can be seen that individual estrade component 51, which screws with the first main body 41.First master
Body 41 is preferably made of the steel hardening.Second main body（Reference numeral 91 in Fig. 1）It is preferred that being made of unhardened steel.Run rail
Road backing member 82 is made of the steel hardening.Guide rail 30 and threaded spindle 20 are formed from steel and the quilt at least in the region that ball contacts
Hardening.
Fig. 3 shows the perspective view of the first main body 41.Ball holding member 83 and running track backing member 82 are installed to first
In main body 41.Two components 83 finally referred to；82 as known to 10 2,014 210 171 A1 of DE.
First main body 41 arranges that two recess portions 80, the recess portion accommodate one respectively on the downside towards guide rail 30
Individual steering component.Steering component is respectively formed a first steering channel being previously mentioned that.First main body 41 has
Two flat end faces 53, end face 11 orientation perpendicularly to the longitudinal axis, wherein the end face refers in the opposite direction.Scheming
It is disposed with the second receiving recess portion 49 on 2 visible end face 53, shown in Fig. 7 second is contained in the second receiving recess portion
End seal.Opposite and be not provided with this receiving recess portion on the end face set, because of the first end sealing element quilt of there
It is contained in first end cover.Second receiving recess portion 49 is configured to cylinder about longitudinal axis 11, and wherein second receiving is recessed
Portion along longitudinal direction axis 11 direction have constant depth.The second alignment recesses are equipped on the periphery that described second accommodates recess portion
48, the alignment bumps of the subordinate on first end sealing element（Reference numeral 74 in Fig. 7）It is embedded into form-fit fashion
In second alignment recesses so that it is fixed about the rotation position of longitudinal axis 11.The shape of second alignment recesses 48
It is chosen such that so that it is easy to manufacture by slotting cutter.It is an advantage of the current invention that the position of the second alignment recesses 48
It can infinitely be matched thread groove in the range of the manufacture of machining（Reference numeral 22 in Fig. 1）Screw pitch with
And first main body 41 length.In contrast, corresponding first alignment recesses（Reference numeral 63 in Fig. 6）Position by fixedly
It is previously given.However, machining of the manufacture of the injection molding of first alignment recesses than the second alignment recesses 48
Manufacture significantly more cost advantages.
It is additionally provided with the second threaded hole 52 on end face 53, the end cap of subordinate respectively is fastened on described by means of bolt
On two threaded holes.In addition it is provided with mounting recess 50, third end cap is prevented by means of the mounting recess（Reference numeral in Fig. 1
92）It is fastened in the first main body 41.
Fig. 4 shows the first or second end cap 61 from the first main body；62 perspective view.First and second end caps 61；
62 are constructed identically, and wherein the first of second end cover 62 accommodates recess portion（Reference numeral 63 in Fig. 6）It is not used by.First He
Second end cover 61；It 62 is made of plastics, preferred polyamide or polyformaldehyde（POM）, wherein the first or second end cap is most preferably
It is manufactured in a manner of injection molding.Correspondingly, the so shaped first or second end cap to manufacture in injection molded
In the range of there is the deformation of very little.This is especially embodied in the following areas：Wall thickness is selected as anywhere being substantially the same,
Which avoids thick and heavy sections.
First and second end caps 61；62 are respectively formed a flat supporting surface 111, and first and second end cap passes through
The supporting surface sticks on the end face of the first main body（Reference numeral 53 in Fig. 3）On.First and second end cap axis along longitudinal direction
The direction of line is penetrated by two fastening perforation 68.Fastening perforation 68 is respectively again by bolt（It is not shown）It penetrates, which screws in the
The threaded hole of subordinate in one main body（Reference numeral 52 in Fig. 3）In.In addition, the first and second end caps 61；62 are respectively equipped with
Two balls keep contact pin 84, and the ball keeps the direction of contact pin axis 11 along longitudinal direction to extend in the first main body and even
Until its longitudinal center.When the nut is not on guide rail, the ball keeps contact pin and ball holding member（In Fig. 3
Reference numeral 83）The second ball is maintained in nut together.Ball keeps contact pin 84 and ball holding member relative to second
The position of ball is as seen from Figure 2.
Ball keeps contact pin 84 to be transitioned into respectively in the second steering channel 45 of two subordinates, wherein the first and second end caps
61；62 are respectively formed the boundary face of the radially outer in the second steering channel 45.The boundary face of the inside of subordinate is disposed in ball
Holding member（Reference numeral 83 in Fig. 3）On.
The direction of axis along longitudinal direction, the first and second end caps 61；62 are penetrated by main shaft perforation 110, main shaft perforation and quilt
Threaded spindle（Reference numeral 20 in Fig. 1）It penetrates.Main shaft perforation 110 is circlewise surrounded by lubrication channel 66.Lubrication channel 66
Be configured to open channel, the channel alternately through subordinate end face（Reference numeral 53 in Fig. 3）Or by individual
The sealing plate being made of elastomer covers, to close the channel in a fluid tight manner.Lubrication channel 66 by adjacent to
Two 69 pass-outs of the first lubricant outlet of threaded spindle.Thereby, it is possible to by lubricating interface（Reference numeral 65 in Fig. 6）For
Lubricant is answered, which reaches threaded spindle, especially thread groove by lubrication channel 66.Lubricant is preferably lubricating grease,
It wherein can also use lubricating oil.Preferably, the lubrication interface in first end cover 61 is used only, end seal is loaded into described
In end cap.Lubrication interface in second end cover 62 preferably remains unused, wherein closing the lubrication interface using threaded.
In addition, lubrication channel 66 is set there are two the second lubricant outlet 96, described two second lubricant outlet pass-outs arrive
Second turns in channel 45.Thus, it is possible to by single lubrication interface, to lubricate the institute in nut, there are five ball-recirculations.
It should also be mentioned that installation protrusion 67, which is embedded into the matched mounting recess in the first main body（Fig. 3
In reference numeral 50）In.Third end cap has similar installation protrusion（Reference numeral 93 in Fig. 5）, however the installation is convex
It rises and is disposed on another position, especially on the side that end cap is opposite about longitudinal axis to be set.Thus third is prevented
End cap is installed in the first main body or first or second end cap 61；62 are installed in the second main body.
Fig. 5 is shown from the second main body（Reference numeral 91 in Fig. 1）Third end cap 92 perspective view.Third end cap
92 be configured to other than the difference next to be described it is identical as the first and second end caps, to about this point referring to Fig. 4
Embodiment.In Fig. 4,5 and 6, identical or corresponding component is indicated by identical reference numeral.
Third end cap 92 can be made in the injection molding tool for wherein also having manufactured the first and second end caps.Here,
A small amount of individual mold insert is only needed to change in mentioned casting tool.
At third end cap 92, the first lubricant outlet 69 being disposed in the region of threaded spindle is closed.Accordingly
Guide bracket（Reference numeral 90 in Fig. 1）It does not screw and engages with threaded spindle.Correspondingly, it is also not present and needs to lubricate
First circulation channel.Adjacent to the first lubricant outlet 69, each closing section 95 is disposed in lubrication channel 66, should
Closing section closes the lubrication channel in a fluid tight manner.According to end cap 61；62；92 which modification is manufactured, envelope
Closed zone section 95 is so constructed as so as to be formed in injection molding tool by substantially cylindrical mold insert.
In order to avoid obscuring end cap 61 during the installation process；62；92, the installation protrusion 93 being previously mentioned that is arranged on
On third end cap 92.There is no other differences with first or second end cap.
Fig. 6 shows the first, second, and third end cap 61；62；92 another perspective view.View direction is relative to Fig. 4
It substantially opposite is directed toward with 5.First to third end cap 61；62；92 are not different about this view.
More particularly to see the first receiving recess portion 64, the first end sealing element at first end cover 61（Attached drawing mark in Fig. 7
Note 71）Described first is accommodated in accommodate in recess portion.In second and third end cap 62；At 92, recess portion 64 is accommodated without using first.
First receiving recess portion 64 is configured to cylinder about longitudinal axis 11, and wherein this first accommodates recess portion axis along longitudinal direction
The direction of line 11 has constant depth.Described first accommodates recess portion is equipped with the first alignment recesses 63, first end on its periphery
The alignment bumps of subordinate on portion's sealing element（Reference numeral 74 in Fig. 2）It is embedded into described first pair in form-fit fashion
In quasi- recess portion 63 so that its rotation position is fixed relative to longitudinal axis 11.In first alignment recesses 64 and the first main body
Two alignment recesses（Reference numeral 49 in Fig. 3）By substantially the same construct.Visible recess portion 112 in Fig. 6 is mainly used for
Avoid deformation.By means of equally distributed three pinch tabs 113 on the periphery of the first alignment recesses 64, even if first pair
Quasi- recess portion 64 has size unfavorable caused by tolerance, can also realize the reliable holding of first end sealing element.
Fig. 7 shows first or second end seal 71；72 perspective view.First and second end seals 71；72
It is constructed identically.The first or second end seal is made of plastics, preferred elastomer.The first or second end
The sealing lip 73 of sealing element is constructed according to 29 28 717 A1 of DE.The sealing lip is in 11 orientation perpendicularly to the longitudinal axis
Plane in contact threaded spindle, the wherein sealing lip preferably seamlessly sticks in threaded spindle on entire periphery.
For this purpose, end seal 71；72 are installed in relative to longitudinal axis 11 in the rotation position of restriction, and it is right which passes through
The engagement of shape cooperation of the quasi- protrusion 74 in the first or second alignment recesses of subordinate is adjusted.The rotation position and screw thread
The screw pitch and end seal 71 of groove；Mutually coordinate relative to the position of thread groove in the direction of 72 axis along longitudinal direction 11.For
First end cover and second end cover is set to be used for the different screw pitch of thread groove in the same manner, first end sealing element 71 is arranged
In the first main body being fabricated in the method for machining, first main body can easily be matched to required rotation
Position.
First and second end seals 71；72 are respectively provided with a reinforcing ring 75, and the reinforcing ring is with relative to longitudinal axis
The mode of 11 rotational symmetry of line constructs.First and second end seal relative to comprising longitudinal axis 11 cut
The cross-sectional shape of facial plane is configured with bevelling in a manner of rectangle.The direction of axis 11 along longitudinal direction, reinforcing ring 75
Width be significantly greater than the thickness of sealing lip 73.Alignment bumps 74 are integrally arranged on reinforcing ring 75.The alignment is convex
It rises radially external far from the reinforcing ring 75 about longitudinal axis 11.
Reference numerals list
10 ball leading screw driving devices
11 longitudinal axis
12 screw channels
13 guiding channels
14 first circulation channels
15 second circulation channels
17 second balls
20 threaded spindles
The peripheral surface of 21 threaded spindles
22 thread grooves
30 guide rails
The inner surface of 31 guide rails
40 nuts
41 first main bodys
The inner peripheral surface of 42 nuts
The peripheral surface of 43 nuts
45 second turn to channel
46 first backward channels
47 second backward channels
48 second alignment recesses
49 second accommodate recess portion
50 mounting recess
51 estrade components
52 threaded holes
53 end faces
54 nut grooves
61 first end covers
62 second end covers
63 first alignment recesses
64 first accommodate recess portion
65 lubrication interfaces
66 lubrication channels
67 installation protrusions
68 fastening perforation
69 first lubricant outlets
71 first end sealing elements
72 the second end sealing elements
73 sealing lips
74 alignment bumps
75 reinforcing rings
80 are used for the recess portion of steering component
82 running track backing members
83 ball holding members
84 balls keep contact pin
90 guide brackets
91 second main bodys
92 third end caps
93 installation protrusions
95 closing sections
96 second lubricant outlets
101 first end ontologies
102 the second end ontologies
103 swivel bearings
104 flanges
105 casing sections
106 sensor stands
107 secure components
110 main shafts are perforated
111 supporting surfaces
112 recess portions
113 pinch tabs
Claims (12)
1. a kind of ball leading screw driving device（10）, there is axis along longitudinal direction（11）The threaded spindle of extension（20）With encirclement institute
State threaded spindle（20）Nut（40）, wherein in the threaded spindle（20）Peripheral surface（21）With the nut（40）It is interior
Circumferential surface（42）Between be disposed with about the longitudinal axis（11）It is logical at least one screw thread that certain pitch helical extends
Road（12）, the screw channel and the first backward channel（46）Continuous first circulation channel is collectively formed（14）, one arranges the first
Ball（16）It is accommodated in the first circulation channel, wherein the nut（40）Including the first main body（41）With first and
Two end caps（61；62）, first and second described end cap is fastened to first main body（41）About the longitudinal axis
（11）On the end set relatively, wherein the nut（40）Including the first and second end seals（71；72）, described first
It is utilized respectively sealing lip with the second end sealing element（73）With the threaded spindle（20）In sealing function, wherein described
One and the second end sealing element be respectively provided with about the longitudinal axis（11）The alignment bumps being directed toward to radial outside（74）,
It is characterized in that, the first end sealing element（71）It is accommodated in the first end cover（61）In, wherein described corresponding
Alignment bumps（74）It is embedded into the first end cover（61）On the first alignment recesses（63）In, wherein the second end is close
Sealing（72）Adjacent to the second end cover（62）It is accommodated in first main body（41）In, wherein corresponding alignment is convex
It rises（74）It is embedded into first main body（41）In the second alignment recesses（48）In.
2. ball leading screw driving device according to claim 1,
Wherein described first and second end seal（71；72）It is constructed identically.
3. the ball leading screw driving device according to one of preceding claims,
Wherein described first and second end cap（61；62）It is constructed identically.
4. the ball leading screw driving device according to one of preceding claims,
The wherein described first end cover（61）There are one unique first alignment recesses for tool（63）, wherein the first end sealing element
（71）There are one unique alignment bumps for tool（74）.
5. the ball leading screw driving device according to one of preceding claims,
Wherein described first main body（41）There are one unique second alignment recesses for tool（48）, wherein the second end sealing element
（72）There are one unique alignment bumps for tool（74）.
6. the ball leading screw driving device according to one of preceding claims,
It is provided with individual guide rail（30）, the guide rail is with constant, U-shaped cross-section shape along the longitudinal axis（11）Prolong
It stretches, wherein in the nut（40）Peripheral surface（43）With the guide rail（30）Inner surface（31）Between arrangement be parallel to institute
State longitudinal axis（11）At least one guiding channel extended（13）, wherein giving at least one guiding channel（31）Match respectively
There are two second be bent to turn to channel（45）, the second of described two bendings turn to channel and the guiding channel（13）With
Two backward channels（47）It is collectively formed and accommodates one wherein and arrange the 2nd ball（17）Continuous second circulation channel（15）,
Described in second turn to channel（45）It is disposed in first and second end cap（61；62）In.
7. the ball leading screw driving device according to one of preceding claims,
The wherein described first circulation channel（14）Channel is turned to including two are bent first, the first of described two bendings turn to
Channel, which is respectively disposed at, is encased in first main body（41）In individual steering component in.
8. the ball leading screw driving device according to one of preceding claims,
Wherein described at least one first backward channel（46）And/or at least one second backward channel（47）Directly by
First main body（41）It limits.
9. the ball leading screw driving device according to any one of claim 6 to 8,
The wherein described first end cover（61）With lubrication interface（65）, the lubrication interface passes through the first end cover（61）In
Lubrication channel（66）Both channel was turned to at least one second（45）, and with the threaded spindle（20）At least one of screw thread
Groove（22）It fluidly connects, the threaded spindle limits the screw channel of subordinate（12）.
10. ball leading screw driving device according to claim 9,
It is provided with and the nut（40）The guide bracket individually constructed（90）, for example described nut of the guide bracket（40）With
Identical mode and the guide rail（30）In ball engage, wherein the guide bracket not with the threaded spindle（20）It is in
Ball engages, wherein the guide bracket（90）With being fastened to the second main body（91）It is opposite and on the longitudinal end set
Two third end caps（92）, wherein the third end cap（92）With first and second end cap（61；62）Difference lies in, institute
State lubrication channel（66）Towards the threaded spindle（20）Direction on be closed.
11. ball leading screw driving device according to claim 10,
Wherein described first to third end cap（61；62；92）It is respectively provided with and is arranged in involved end cap（61；62；92）No
With the installation protrusion on position（67；93）, wherein the installation is raised（67；93）It is respectively embedded in the involved main body
（41；91）On subordinate mounting recess（50）In.
12. including multiple ball leading screw driving devices（10）Combination, the ball leading screw driving device is respectively according to aforementioned power
One of profit requirement constructs, wherein single ball leading screw driving device（10）The first and second end caps（61；62）And the
One and the second end sealing element（71；72）It constructs in the same manner respectively, wherein at least one screw channel（12）Screw pitch and/
Or single ball leading screw driving device（10）The first main body（41）Length constructed differently from one another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017206583.4A DE102017206583B4 (en) | 2017-04-19 | 2017-04-19 | Rolling element screw drive with end seal in the main body and in the end cap |
| DE102017206583.4 | 2017-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730461A true CN108730461A (en) | 2018-11-02 |
| CN108730461B CN108730461B (en) | 2022-10-14 |
Family
ID=63714866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810348752.5A Active CN108730461B (en) | 2017-04-19 | 2018-04-18 | Ball screw drive with end seals in the body and end cap |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108730461B (en) |
| DE (1) | DE102017206583B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707814A (en) * | 2019-01-25 | 2019-05-03 | 深圳市锐健电子有限公司 | A kind of novel ball screw device |
| WO2023282555A1 (en) * | 2021-07-07 | 2023-01-12 | (주)원에스티 | Linear stage |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6804783B1 (en) * | 2019-05-29 | 2020-12-23 | 逸人 水野 | Ball screw mechanism and linear moving device |
| TWI720636B (en) * | 2019-10-02 | 2021-03-01 | 東佑達自動化科技股份有限公司 | Circulator structure and slider device using the same |
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| DE2928717A1 (en) * | 1979-07-16 | 1981-01-29 | Star Kugelhalter Gmbh Dt | Fixed screw spindle drive seal in spindle nut - has seal lip profile equal to spindle cross section |
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| WO2023282555A1 (en) * | 2021-07-07 | 2023-01-12 | (주)원에스티 | Linear stage |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017206583A1 (en) | 2018-10-25 |
| DE102017206583B4 (en) | 2020-06-10 |
| CN108730461B (en) | 2022-10-14 |
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