CN1391332A - Linear actuating devices - Google Patents
Linear actuating devices Download PDFInfo
- Publication number
- CN1391332A CN1391332A CN 02124325 CN02124325A CN1391332A CN 1391332 A CN1391332 A CN 1391332A CN 02124325 CN02124325 CN 02124325 CN 02124325 A CN02124325 A CN 02124325A CN 1391332 A CN1391332 A CN 1391332A
- Authority
- CN
- China
- Prior art keywords
- movable axis
- gear
- rotor
- thrust
- linear actuating
- 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.)
- Granted
Links
Images
Abstract
A linear driving device having a converting means for converting the rotational motion of a rotor 16 of a motor into the straight motion of the drive shaft 24 has a thrust receiving structure for receiving a reaction in the thrust direction working on the movable shaft 24 when it moves forward. The thrust receiving structure makes a point contact for suppressing the increase of rotating friction of the rotor based on the reaction in the thrust direction working on the movable shaft 24 when it moves forward, wherein the center of rotation is received on the rear end of the rotor by the thrust structure.
Description
Technical field
The present invention relates to the linear actuating device of a kind of straight-line linear actuating device that rotatablely moving of drive source can be converted to movable axis as the switch that can be used as the waterworks valve and switch transmission device of bathtub drain plug etc.
Technical background
The at present existing various linear actuator schemes that can be used as waterworks threshold switch and bathtub drain plug switch transmission device etc.Japan Patent is real, and to open the invention that clear 57-127567 communique put down in writing be exactly a kind of.The linear actuator of the described invention of above-mentioned communique is provided with: the action of restriction direction of rotation, output shaft that can move at direction of propulsion, that be provided with the external screw thread formation; Be located at motor epitrochanterian, with the internal thread of the external screw thread of output shaft engagement; Be located at the pinion of motor rotor one end; Gear with pinion; Be located at the protuberance of the restriction rotation on this gear; Be located at support on the platform, limit the protuberance of said gear rotary area by interfering raised part; Rotary area by the restriction said gear limits above-mentioned output shaft straight line shift motion.Be fixed with position transducer on the support platform of said gear configured in parallel, can detect the origin position of gear in rotary area.And, constitute a rotor rotation that is provided with greater than the through hole of above-mentioned internal thread and output shaft external thread diameter that makes centre bore, drive output shaft in thrust direction, the end face of the bobbin portion of rotor through hole bears the suffered thrust of output shaft.
Open the described invention of clear 57-127567 communique exists following problem to above-mentioned Japan Patent in fact:
1. owing to be provided with restriction rotary area portion with the gear of being located at epitrochanterian pinion, so, rotate a circle operating space in the scope of gear can only be obtained.
2. utilize axle on the gear be fixed on rotor engaged to come the position of indirect detection output shaft, be provided with a plurality of members such as rotor and gear between output shaft and transducer, because the influence of element precision and assembly precision etc., position probing is difficult to correctly.
3. form internal thread in the centre of rotor hole, the external screw thread of output shaft and this internal screw-thread screw, the output shaft occasion that thrust moves in the centre of rotor hole, because rotor end-face is the tubulose of internal diameter greater than threading path, and bear output shaft by this large-diameter rotor end face, so the end face at rotor can produce very big slip loss, the result is difficult to obtain big thrust.And as mentioned above, owing to be by large diameter rotor end-face bearing thrust, so exist the peripheral speed of the rotor end-face of bearing thrust face to become big, it is big that the PV value becomes, the problem of mar proof and poor durability.
Particularly, want enough big driving shaft straight line shift motion, above-mentioned 2. just remarkable more with 3. problem.
The purpose of this invention is to provide a kind of linear actuating device that can comprehensively address the above problem, promptly solve above-mentioned problem 1., also can solve simultaneously the above-mentioned linear actuating device that 2. reaches the straight-line conversion equipment that rotatablely moving of motor rotor can be converted to axle of problem 3., wherein 1. can obtain enough big driving shaft straight line shift motion, 2. can directly detect position as the driving shaft of output shaft, can carry out correct position probing, 3. by conscientiously studying the formation of thrust pad portion, can alleviate sliding force, obtain big thrust, and reduce the peripheral speed of thrust pad portion, have good abrasion performance and durability.
For solving above-mentioned problem, technical scheme 1 described invention is a kind of linear actuating device, is provided with the straight-line conversion equipment that rotatablely moving of motor rotor is converted to driving shaft, it is characterized in that, also is provided with: the 1st gear of rotation along with the rotor rotation; Different with the number of teeth of the 1st gear, with the 2nd gear of the 1st gears engaged; The American coiling brake apparatus of blocking portion is housed, this blocking portion is located on described the 1st gear and the 2nd gear, make the two phase mutual interference and stop described rotor rotation when allowing two many weeks of gears rotation, limits the movable range of above-mentioned movable axis by American coiling brake apparatus.
According to the present invention, constitute the 1st gear of American coiling brake apparatus and the 2nd gear and drive in rotating element portion and begin to rotate to the revolution that rotation finishes and increase, can fully increase movable axis straight line shift motion thus.
The feature of the invention of technical scheme 2 is that on the basis of technical scheme 1 described invention, the 1st gear is the pinion that is installed in as on the motor output shaft of drive source.
According to the present invention, the pinion that is installed on the motor output shaft is used as the 1st gear that constitutes American coiling brake apparatus, can simplify the formation of the linear actuating device that is provided with American coiling brake apparatus.
The feature of technical scheme 3 described inventions is that on the basis of technical scheme 1, the 1st gear is installed in the back segment of the pinion of motor.
According to the present invention, be located at the back segment of motor pinion owing to will constitute the 1st gear of American coiling brake apparatus, thus can further increase the revolution of the 1st gear and the 2nd gear, thus the shift motion and the strength of movable axis further increased.
The feature of technical scheme 4 described inventions is, on the basis of technical scheme 3, between the pinion of motor and the 1st gear other gears is installed.
According to the present invention, can further increase the revolution of the motor of relative the 1st gear and the 2nd gear revolution, thereby further increase the shift motion and the strength of movable axis.
Technical scheme 5 described inventions are characterised in that, on the basis of technical scheme 1, are provided with a plurality of blocking portions at the 1st gear and the 2nd gear one side.
Technical scheme 6 described inventions are characterised in that, in the linear actuating device that is provided with the straight-line conversion equipment that rotatablely moving of motor rotor is converted to driving shaft, for directly detecting the position of movable axis, on above-mentioned movable axis, be provided with position detecting device.
According to the present invention, can correctly detect the position of movable axis.
The feature of technical scheme 7 described inventions is that on the basis of technical scheme 6, conversion equipment is provided with the rotation stop device that is installed in movable axis and epitrochanterian, intermeshing internal thread and external screw thread and stops the movable axis rotation.Rotation stop device is provided with: be located at the guide part of storing in the shell; Straight-line simultaneously with movable axis, that link together with movable axis, stop the movable axis rotation under above-mentioned guide part guiding spline member, above-mentioned position detecting device is installed on this spline member.
According to the present invention, can realize rotatablely moving of rotor is converted to the simplicity of straight-line conversion equipment and position detecting device.
The feature of technical scheme 8 described inventions is, on the basis of technical scheme 7 described inventions, be provided with the 1st checkout gear of above-mentioned relatively position detecting device motion track configuration, the 1st checkout gear can be located at position detecting device on the movable axis and partner and detect the position of movable axis, the 1st checkout gear when relative with above-mentioned position detecting device with relatively the time detection signal difference detect the position of movable axis, directly or indirectly be installed on the member that is provided with guide part simultaneously.
According to the present invention, can be easy to guarantee the positional precision of position detecting device and the 1st checkout gear.
The feature of technical scheme 9 described inventions is, on the basis of technical scheme 8, the 1st checkout gear is installed on the base plate, and this base plate is fixed on the member that is provided with guide part, so, be easy to guarantee the positional precision of position detecting device and the 1st checkout gear.
The feature of technical scheme 10 described inventions is, rotatablely move in the linear actuating device of the straight-line conversion equipment that is converted to movable axis being provided with rotor with motor, be provided with the thrust pad structure of the reaction force that bears the thrust direction that acts on movable axis when movable axis advances, this thrust pad is configured to a contact thrust and bears structure, in the time of can suppressing movable axis and advance owing to act on the increase of the rotor spin friction that the reaction force of the thrust direction of movable axis causes.
According to the present invention, can obtain a kind of energy minimization frictional resistance and resistance to sliding, reduce the linear actuating device of thrust loss, high thrust.
The feature of technical scheme 11 described inventions is on the basis of technical scheme 10 described inventions, and thrust pad adopts the structure of the rotary middle point of bear rotor rear end.
According to the present invention, can obtain a kind of linear actuating device that can further reduce resistance to sliding, reduce thrust loss, high thrust.Because slip sound is little, so the noise can reduce operation the time.
The feature of technical scheme 12 described inventions is on the basis of technical scheme 11 described inventions, advances by movable axis rotor is pushed the load of thrust pad structural grain greater than retreat the load that rotor is pulled away from thrust pad structure side direction by movable axis.
According to technical scheme 1 described invention, in linear actuating device, owing to be to utilize American coiling brake apparatus restriction movable axis straight line shift motion, so can increase the 1st gear, the revolution of the 2nd gear that constitute American coiling brake apparatus from a rotation limit to another rotation limit, when prolonging movable axis straight line shift motion, also can obtain enough big thrust.
The simple declaration of accompanying drawing
Fig. 1 is the longitudinal section of linear actuating device example of the present invention;
Fig. 2 is the front view that removes the American coiling brake apparatus of part of the lid in the above-mentioned example;
Fig. 3 illustrates the action of above-mentioned American coiling brake apparatus, (a) is the front elevation of the side rotation limit, (b) rotates the front elevation of the limit for the opposing party.
The working of an invention form
The example of linear actuating device of the present invention is described with reference to the accompanying drawings.Originally be embodied as the linear actuating device of switch bathtub drain plug switch, by before the movable axis and then open drain plug, movable axis retreats, and closes drain plug.
In Fig. 1, Fig. 2,13 for there being the cylinder-like shell at the end, and 4 for being fixed on the lid of shell 13 openends.Motor as drive source is housed in shell 13.Motor is provided with stator that is made of bobbin 19, drive coil 20, stator core 21, motor casing 18 etc. and the rotor that is made of rotor 16, rotor magnet 17 etc.
Said stator 21 inner circumferential side unshakable in one's determination are provided with so that circumferencial direction is uniformly-spaced cylindrical and dispose a plurality of utmost point teeth.Stator core 21 is one group with 2, and the mutual subtend of each utmost point tooth is disposed at circumferencial direction.Outer circumferential sides at these utmost point teeth is embedded with the bobbin 19 that is wound with drive coil 20.The stator pack that 2 groups above-mentioned 2 one group stator core 21, bobbin 19, drive coil 20 constitute is axially overlapping in conjunction with constituting stator.The stator of Gou Chenging has been contained in the round-ended cylinder shape motor casing 18 and has fixed like this.
Above-mentioned rotor 16 is provided with as the center drum portion 25 of the output shaft of motor with by the integrally formed big footpath cylindrical portion 26 of being located at about half place of direction of principal axis of this center drum portion 25.Columnar rotor magnet 17 is embedded in the excircle of big footpath cylindrical portion 26 and fixes.Rotor magnet 17 is provided with equidistant magnetic pole at circumferencial direction.In shell 13, the end face of floor 22 and said stator is relative and be fixed on the open end of above-mentioned motor casing 18.The centre bore on floor 22 is embedded with radial bearing 23, and the above-mentioned center drum portion 25 by 23 pairs of rotors 16 of radial bearing supports rotationally.
The inner circumferential side of the center drum portion 25 of rotor 16 is made of the minor diameter part 27a of front and large-diameter portion 27b in addition thereof.Therefore, large-diameter portion 27b arrives the rear end of center drum portion 25.Be embedded with the cap 15 of using the low friction member different to constitute with rotor 16 materials in the rear end of above-mentioned rotor 16.Cap 15 is provided with sphere, and this sphere and thrust pad 14 butts that are disposed at the inner bottom part center of motor machine shell 18 bear the load of the thrust direction that acts on rotor.Cap 15 constitutes the thrust pad structure with thrust pad 14.Be provided with the cylindrical portion of center drum portion 25 ends that surround thrust pad 14 and rotor 16 at the inner bottom part center of motor casing 18.
The center drum portion 25 leading section inner circumferential side of rotor 16 be form on the above-mentioned minor diameter part 27a in screw mandrel.Above-mentioned center drum portion 25 as the direction of principal axis third side to be above-mentioned radial bearing 23 near be formed with pinion 28.The rearward end of movable axis 24 is inserted above-mentioned center drum portion 25.Rearward end periphery central authorities at movable axis 24 form out screw rod.The interior screw mandrel engagement of out screw rod and above-mentioned rotor 16.The leading section of movable axis 24 is outstanding from the front end face of above-mentioned lid 4.Be fixed with the rotation prevention portion 6 that in above-mentioned lid, extends to radial direction from movable axis 24 at movable axis 24 vertical central portions.At lid 4 internal fixation the axis of guide 5 parallel with movable axis 24 arranged.Can embed in the axis of guide 5 along the above-mentioned rotation prevention portion 6 that the axis of guide 5 slides.
The above-mentioned motor that is provided with stator and rotor is a stepping motor, connects the pulse type power supply by drive coil 20, and rotor is with the angle rotation of regulation.If constitute above-mentioned center drum portion 25 rotations in the same way of rotor, then be located at the interior screw mandrel on the minor diameter part 27a of center drum portion 25 and the out screw rod engagement of movable axis 24, and by 24 rotations of rotation prevention portion 6 restriction movable axises, thus, movable axis 24 under the guiding of the axis of guide 5 axially straight line move.If 25 counter-rotatings of center drum portion, then movable axis 24 reverse linear move.Therefore, formations such as the out screw rod of the interior screw mandrel of center drum portion 25 and movable axis 24, rotation prevention portion 6 are converted to rotatablely moving of motor rotor in the straight-line device of movable axis 24.
Above-mentioned rotation prevention portion 6 is equipped with flat thin magnet 7.And, because rotation prevention portion 6 is and the member of movable axis 24 one so flat thin magnet 7 can directly be contained on the movable axis 24, also can be contained in indirectly on the movable axis 24.Flat thin magnet 7 constitutes position detecting device with the following Magnetic Sensor that will illustrate.
Relative with the motion track of above-mentioned flat thin magnet 7, dispose the Magnetic Sensor 2,3 that the straight line that detects movable axis 24 moves the limit.Magnetic Sensor 2,3 and 7 collocation of above-mentioned flat thin magnet constitute position detecting device.Magnetic Sensor 2 detects the limit of advancing of movable axis 24, and Magnetic Sensor 3 detects movable axis 24 and retreats the limit.Magnetic Sensor 2,3 is disposed on the substrate 8, and substrate 8 is fixed on the member that is provided with as the axis of guide 5 of guide part and promptly covers on 4.More particularly, substrate 8 inserts to be located in the insertion groove that covers on 4 etc., and an end of substrate 8 is fixed on and covers 4 inner bottom surface, and the other end and above-mentioned floor 22 butts and being fixed on cover in 4.
As the Magnetic Sensor 2 with position detecting device is the 1st checkout gear, with Magnetic Sensor 3 is the 2nd checkout gear, according to as the Magnetic Sensor 2 of the 1st checkout gear with as the flat thin magnet 7 of position detecting device when relative and relatively the time detection signal of above-mentioned Magnetic Sensor 2 and the 2nd checkout gear Magnetic Sensor 3 poor, can detect the position of movable axis 24., as the 2nd checkout gear, poor with Magnetic Sensor 3 according to the detection signal of the two with Magnetic Sensor 2 as the 1st checkout gear, equally also can detect the position of movable axis 24.
If increase movable axis from the limit of advancing to the shift motion that retreats the limit, and obtain enough strength, must increase the revolution of motor.For this reason, in illustrated example, be provided with American coiling brake apparatus.Fig. 2, Fig. 3 are the structure chart of the American coiling brake apparatus in the above-mentioned linear moving apparatus of packing into.
In Fig. 2, Fig. 3, the outer circumferential sides of being located at the pinion 28 in the above-mentioned center drum portion 25 dispose and the 1st gear 29 of pinion and with the 2nd gear 31 of the 1st gear 29 engagements.The 1st gear 29 and the 2nd gear 31 keep by above-mentioned floor 22, and can be the center rotation with axle 30, axle 32 respectively.The 1st gear 29 is different with the number of teeth of the 2nd gear 31.
Fig. 1, example shown in Figure 2 are the linear actuating device of automatic switch bathtub drain plug, and the total travel of movable axis 24 is about 18mm, and the stroke that above-mentioned two transducers are 2,3 is 15.2mm.The number of teeth of being located at the pinion 28 on the output shaft of motor is that the number of teeth of 16, the 1 gears 29 is that the number of teeth of 24, the 2 gears 31 is 25.Be provided with projection 33 integratedly on the 1st gear 29, the thickness of projection 33 is 2 transverse tooth thickness.Relative therewith, be provided with projection 34 integratedly on the 2nd gear 31, the thickness of projection 34 is that 1 roller seating space is thick.Above-mentioned projection 33 is side-prominent from the same one side of gear 29,31 with projection 34, like this, if the front end of these projections 33,34 is relative, then can the phase mutual interference.In the scope of projection 33,34 non-interference, the 1st gear the 29, the 2nd gear 31 both sides are all rotatable.Therefore, projection 33,34 constitutes blocking portion, and in the scope of non-interference, how all the 1st gear the 29, the 2nd gear 31 both sides are all rotatable, when the phase mutual interference, stops the motor rotation.
As mentioned above, the number of teeth of the 1st gear 29 is that the number of teeth of 24, the 2 gears 31 is 25, and it is 1 o'clock that the two number of teeth differs, shown in Fig. 3 (a), and projection 33 and projection 34 mutual interference prevention rotation mutually.Under this state, the gear counter-rotating, shown in figure (b), it is the state of the 1st gear 29 after the number of teeth is allowed in 31 rotations of the 2nd gear that projection 33 stops the state of rotation with the reverse once more mutual interference mutually of projection 34.And, in above-mentioned example, try to achieve by the revolution N1 of the 1st gear 29, the tooth number Z 1 of the 1st gear 29, the tooth number Z p that pinion 28 revolutions are Np and pinion 28 from the stroke L of the movable axis 24 of a spline position to another spline position.
N1＝25-1＝24。
If (blocking portion 33 of the 1st gear 29 is 1 tooth, and then the revolution of the 1st gear 29 is 25, and in illustrated example, blocking portion 33 is 2 teeth, so, be-1.)
Np＝N1×Z1/Zp＝24×24/16＝36
If the spiral shell square of above-mentioned screw mandrel 27 is 0.5mm, then stroke L is
L＝36×0.5＝18(mm)
In fact, projection 33 and projection 34 mutually the position of mutual interference only apart from about 1.5 tooth pitches of the central shaft of gear 29,31, so accurate Calculation is L=17.9 (mm).
Like this, the device that is provided with the blocking portion of phase mutual interference in the time of gears engaged that the number of teeth is different on operative gear is called American coiling brake apparatus, it is characterized in that, compare with above-mentioned geneva gear etc., more from the rotation limit of a direction to the revolution of the gear of the rotation limit of other direction.Adopt the diagram example that uses American coiling brake apparatus, can prolong the straight line shift motion of movable axis 24, can obtain enough big strength simultaneously with this kind feature.
In the described in the above example, by 2 Magnetic Sensors 2,3 detect, the stroke of the movable axis 24 of restriction is slightly smaller than the stroke of the movable axis 24 of American coiling brake mechanism restriction.This is because usually by 2 Magnetic Sensors 2,3 restriction strokes, though since out of control when waiting Magnetic Sensor 2,3 to limit, also can move by the straight line that American coiling brake mechanism imposes restrictions on movable axis 24.Can protect linear actuating device like this and by linear actuating device institute device driven.
In the diagram example, drive 29 rotations of the 1st gear by pinion 28, the 2nd gear 31 and the 1st gear 29 are meshed, also can not adopt pinion with the rotor one of motor, and the 1st gear is set on the output shaft of motor, make the 2nd gear and the 1st gears engaged.
Be provided with in the back that is installed on the pinion on the motor output shaft under the situation of the 1st gear, also one or more gears can be installed between pinion and the 1st gear.
Above-mentioned blocking portion can not only be 1 also, and establishes a plurality of.Because can adjust the revolution of the 1st, the 2nd gear like this by 1 rotation unit, so, even identical gear row structure, also can be by only one-sided gear deflection being finely tuned the stroke of movable axis.
In illustrated example, detected magnet body sheet 7 directly or indirectly is contained on the movable axis 24, will be fixed on shell 4 sides as the Magnetic Sensor 2,3 of checkout gear, can directly detect the position of movable axis.Also the transducer as checkout gear can be located at movable axis 24 sides, will be located at shell 4 sides as flat thin magnet of detected body etc.
In illustrated example, inner bottom surface by being located at insertion groove on the shell 4, shell 4 and the location that substrate 8 is carried out on floor 22 and fixing, but also can fix by screw thread, welding, the location of carrying out substrate 8 such as bonding and fixing.Also can carry out the location of substrate and fixing by projection and rib to replace above-mentioned groove.
As mentioned above, described linear actuating device can be used for automatic switch bathtub drain plug above.When driving shaft 24 advances, its thrust pushing drain plug, thus open drain plug.If movable axis 24 retreats, its thrust tractive drain plug, thus close drain plug.When driving shaft 24 advances, under the effect of the reaction force that acts on the thrust direction on the movable axis 24, with rotor 16 be the strong bump of cap 15 thrust pads 14 of one.If thrust is born structure and is adopted existing structure, because the frictional resistance between rotor and thrust pad is big, and big with the peripheral speed of the rotor portion of thrust pad butt, so the mechanical loss of thrust pad portion is big, be difficult to obtain big thrust.
According to the diagram example, be provided with sphere with the cap 15 of rotor 16 one, this sphere contacts for point with thrust pad 14, so frictional resistance is little, and the contact point of sphere and thrust pad 14 is the rotary middle point of the rear end of rotor 16, this rotary middle point contacts with thrust pad 14, so the peripheral speed of this contact point is zero in theory, so resistance to sliding is very little.Since cap 15 usefulness not with the member of rotor 16 one formation, so can adopt the little material of frictional resistance, can reduce resistance to sliding.According to the diagram example, owing to adopt the thrust pad structure, can be suppressed at the increase of the spin friction of the rotor 16 that the reaction force that acts on the thrust direction of movable axis 24 when movable axis 24 advances causes,, obtain big thrust so can reduce the mechanical loss of thrust pad portion.
Required thrust required thrust when the opening when drain plug of above-mentioned bathtub is closed.Therefore, because of advancing, movable axis 24 is subjected to the load of structure side greater than retreat the load that rotor 16 is pulled away from thrust pad structure side because of movable axis 24 by being pressed in thrust block rotor 16.In the diagram example, when movable axis 24 retreats under the effect of thrust direction reaction force, one of the rotor 16 axial end butt with radial bearing 23.It is the face contact that this mutual butt closes, simultaneously, because with certain peripheral speed sliding contact, so produce big sliding-frictional resistance.But because movable axis 24 retreats, rotor 16 is pulled away from thrust, and to bear the load of structure side direction little, so, even produce certain sliding-frictional resistance, can not produce the problem of the thrust deficiency that drives driven members such as drain plug yet.
In the diagram example, can utilize cap 15 with the member of rotor 16 sides of thrust pad 14 butts, also can use steel ball etc. to replace cap 15.Also can be not limited only to sphere and with the front end thrust pad butt of conical member or trochoid member.Preferably adopt the little member of frictional resistance with the member of thrust pad 14 butts, but be not limited in this.Also can adopt and the identical material of rotor 16 materials.
Claims (12)
1. linear actuating device, being provided with rotatablely moves motor rotor is converted to the straight-line conversion equipment of driving shaft, it is characterized in that,
Also comprise: the 1st gear that rotates along with the rotation of rotor; Different with the 1st gear number of teeth and with the 2nd gear of the 1st gears engaged; The American coiling brake apparatus of blocking portion is housed, and this blocking portion is located on described the 1st gear and the 2nd gear, make the two phase mutual interference and stop described rotor rotation when allowing two many weeks of gears rotation,
Limit the movable range of above-mentioned driving shaft by above-mentioned American coiling brake apparatus.
2. linear actuating device as claimed in claim 1 is characterized in that, described the 1st gear is the pinion that is installed in as on the output shaft of the motor of drive source.
3. linear actuating device as claimed in claim 1 is characterized in that described the 1st gear is contained in the back segment of the pinion of motor.
4. linear actuating device as claimed in claim 3 is characterized in that, between the pinion of described motor and described the 1st gear other gears is housed.
5. linear actuating device as claimed in claim 1 is characterized in that, is provided with a plurality of blocking portions a side of described the 1st gear and described the 2nd gear.
6. linear actuating device is provided with rotor with motor and rotatablely moves and be converted to the straight-line conversion equipment of driving shaft, it is characterized in that, for the position of directly detecting described movable axis is provided with position detecting device on described movable axis.
7. linear actuating device as claimed in claim 6 is characterized in that,
Described conversion equipment is provided with the rotation stop device of being located at movable axis and epitrochanterian, intermeshing external screw thread and internal thread and stoping above-mentioned movable axis rotation;
Described rotation stop device is provided with: be located at the guide part that holds in the shell, and spline member straight-line simultaneously with movable axis and that combine with above-mentioned movable axis, under the guide part guiding, stop the movable axis rotation; Described position detecting device is located on the described spline member.
8. linear actuating device as claimed in claim 7, it is characterized in that, also be provided with the 1st checkout gear, the configuration of the motion track of the above-mentioned relatively position detecting device of the 1st checkout gear and can be located at the position that position detecting device collocation on the movable axis detects movable axis; Described the 1st checkout gear directly or indirectly is installed on the member that is provided with guide part when constituting when relative with above-mentioned position detecting device and the detection signal difference when relative detects the position of movable axis.
9. linear actuating device as claimed in claim 8 is characterized in that, described the 1st checkout gear is disposed on the substrate, and this substrate is fixed on the member that is provided with guide part.
10. a linear actuating device is provided with and converts rotatablely moving of motor rotor to movable axis straight-line conversion equipment, it is characterized in that,
The thrust that is provided with the reaction force that bears the thrust direction that acts on movable axis when described movable axis advances is born structure,
Described thrust is born structure and is born structure for some contact thrust, suppresses to act on when movable axis advances the increase of the rotor spin friction that the reaction force of the thrust direction of movable axis causes.
11. linear actuating device as claimed in claim 10 is characterized in that, described thrust is born the structure that structure is a bear rotor rear end rotary middle point.
12. linear actuating device as claimed in claim 11 is characterized in that, when when described movable axis advances rotor being pushed to thrust and bearing the load of structure side direction and retreat greater than movable axis rotor is pulled away from the load that thrust is born the structure side direction.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001179166A JP2002374652A (en) | 2001-06-13 | 2001-06-13 | Linear driver |
| JP2001178628A JP4136333B2 (en) | 2001-06-13 | 2001-06-13 | Linear drive |
| JP2001178628 | 2001-06-13 | ||
| JP2001179166 | 2001-06-13 | ||
| JP2001184398 | 2001-06-19 | ||
| JP2001184398A JP4004753B2 (en) | 2001-06-19 | 2001-06-19 | Linear drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1391332A true CN1391332A (en) | 2003-01-15 |
| CN100472919C CN100472919C (en) | 2009-03-25 |
Family
ID=27346921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021243255A Expired - Fee Related CN100472919C (en) | 2001-06-13 | 2002-06-11 | Linear actuating devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100472919C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888165A (en) * | 2010-07-05 | 2010-11-17 | 常州市巨力精密电机有限公司 | Linear motor |
| CN102308133B (en) * | 2008-12-16 | 2014-01-29 | 艾伦·格雷姆·迈纳斯 | Linear actuator with internal linear to rotary conversion and external rotary component |
| CN106641838A (en) * | 2015-10-19 | 2017-05-10 | 百奇股份有限公司 | Lighting fixture and related control method |
| CN110869711A (en) * | 2017-07-14 | 2020-03-06 | 株式会社尼康 | Encoder and driving device |
| CN111902651A (en) * | 2018-03-29 | 2020-11-06 | 株式会社爱德克斯 | Brake device |
-
2002
- 2002-06-11 CN CNB021243255A patent/CN100472919C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102308133B (en) * | 2008-12-16 | 2014-01-29 | 艾伦·格雷姆·迈纳斯 | Linear actuator with internal linear to rotary conversion and external rotary component |
| CN101888165A (en) * | 2010-07-05 | 2010-11-17 | 常州市巨力精密电机有限公司 | Linear motor |
| CN106641838A (en) * | 2015-10-19 | 2017-05-10 | 百奇股份有限公司 | Lighting fixture and related control method |
| CN106641838B (en) * | 2015-10-19 | 2020-11-13 | 百奇股份有限公司 | Lighting fixture and related control method |
| CN110869711A (en) * | 2017-07-14 | 2020-03-06 | 株式会社尼康 | Encoder and driving device |
| CN111902651A (en) * | 2018-03-29 | 2020-11-06 | 株式会社爱德克斯 | Brake device |
| US11333211B2 (en) | 2018-03-29 | 2022-05-17 | Advics Co., Ltd. | Brake device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100472919C (en) | 2009-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1110636C (en) | Electric actuating cylinder | |
| CN1143064C (en) | Electric actuator and calliper brake comprising such actuator | |
| CN103089930B (en) | Retarder and the motor brake with this retarder | |
| CN100554730C (en) | Propulsion force transmission device | |
| CN1851288A (en) | Motor-incorporated hypocycloid-type speed reducer | |
| EP1923683A1 (en) | Rotation detector and torque sensor | |
| JP5286202B2 (en) | Rotation-linear motion conversion mechanism and actuator | |
| CN1427930A (en) | Screw actuator | |
| CN1891964A (en) | Drive device | |
| CN1579860A (en) | Rotation detecting device and automobile with the same | |
| CN101056029A (en) | Electric rotating machine | |
| CN105782381B (en) | A kind of planetary roller screw auxiliary | |
| KR20020073502A (en) | Actuator unit and brake calliper | |
| JP2014196775A (en) | V-belt type continuously variable transmission | |
| US10100892B2 (en) | Electric brake caliper | |
| CN1391332A (en) | Linear actuating devices | |
| US20090133518A1 (en) | Motion converter | |
| CN1606821A (en) | AC machine for vehicle | |
| JP2011179542A (en) | Electromotive linear actuator and electromotive disc brake | |
| JP2005133863A (en) | Braking device | |
| CN1823464A (en) | Stepping motor | |
| CN109681602A (en) | A kind of harmonic speed changer with linear motion function | |
| CN1286680C (en) | Relative rotation state detecting device | |
| CN114342226A (en) | Actuator device for generating a longitudinal adjustment movement | |
| KR100554542B1 (en) | transmission system for brake |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20210611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |