WO2011086791A1 - 防塵機構付きリニアアクチュエータ - Google Patents
防塵機構付きリニアアクチュエータ Download PDFInfo
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- WO2011086791A1 WO2011086791A1 PCT/JP2010/071904 JP2010071904W WO2011086791A1 WO 2011086791 A1 WO2011086791 A1 WO 2011086791A1 JP 2010071904 W JP2010071904 W JP 2010071904W WO 2011086791 A1 WO2011086791 A1 WO 2011086791A1
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- WIPO (PCT)
- Prior art keywords
- dustproof
- linear actuator
- housing member
- belt
- belts
- Prior art date
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- 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
- F16C29/08—Arrangements for covering or protecting the ways
- F16C29/082—Arrangements for covering or protecting the ways fixed to the way
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
- Y10T74/18664—Shaft moves through rotary drive means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
- Y10T74/18712—Contamination related
- Y10T74/1872—Imperforate enclosure
Definitions
- the present invention relates to a linear actuator with a dustproof mechanism, for example, a linear actuator with a dustproof mechanism suitable for use as a drive mechanism used in a clean room.
- a linear actuator with a dustproof mechanism proposed in Patent Document 1 below has a function capable of reliably preventing dust leakage from an opening of an actuator housing, and a dustproof belt at the opening of the actuator housing In order to avoid interference with the projecting portion of the moving stage, a detouring means for the dustproof belt is provided for the moving stage.
- FIG. 10 is a view for explaining the configuration of a linear actuator with a dustproof mechanism according to the prior art, in which (a) shows the top surface of the linear actuator with a dustproof mechanism, and (b) shows the dustproof mechanism. The front of the attached linear actuator is shown, and (c) in the figure shows a cross section of the linear actuator with a dustproof mechanism.
- a linear actuator 1 with a dustproof mechanism includes an elongated box-shaped housing member 2, a ball screw 3 supported in a rotatable state in the housing member 2, and a rotation of the ball screw 3.
- a moving stage 4 that reciprocates linearly according to the movement and a drive motor 5 for rotating the ball screw 3 are provided.
- the housing member 2 includes a horizontal substrate 21, a pair of left and right vertical side plates 22 and 23 that extend vertically from the upper surface of the horizontal substrate 21 and extend in parallel with the ball screw 3, and front and rear ends of the vertical side plates 22 and 23. And end blocks 24 and 25 attached to each other.
- One end block 24 supports one end of the ball screw 3 in a rotatable state. Further, the other end portion of the ball screw 3 is supported by the other end block 25 in a rotatable state, and is connected to the drive motor 5 through the block 25.
- the upper end portions of the left and right vertical side plates 22 and 23 are bent at right angles toward the inside to form left and right horizontal upper plate portions 22a and 23a.
- a central partition plate 26 is disposed between the left and right horizontal upper plate portions 22a and 23a, and the front and rear ends of the central partition plate 26 are fixedly attached to end blocks 24 and 25, respectively.
- a left opening 27 extending in the axial direction of the ball screw 3, that is, in the moving direction of the moving stage 4 is formed between the horizontal upper plate portion 22 a and the central partition plate 26.
- a right opening 28 is formed between the horizontal upper plate portion 23 a and the central partition plate 26.
- the openings 27 and 28 are sealed with dustproof belts 29 and 30 wider than these openings. These dustproof belts 29 and 30 are bridged between the end blocks 24 and 25 along the lower surfaces of the horizontal upper plate portions 22a and 23a and the central partition plate 26, respectively.
- the housing member 2 seals the horizontal substrate 21, the vertical side plates 22 and 23 (horizontal upper plate portions 22 a and 23 a), the central partition plate 26, the end blocks 24 and 25, and the openings 27 and 28.
- the partition chamber is partitioned into a box shape by the dustproof belts 29 and 30, and covers the ball screw 3 to play a role of retaining dust generated from the actuator in the partition chamber.
- the moving stage 4 includes a nut block 41 in which a ball screw nut screwed to the ball screw 3 is formed, a lower plate 42 fixed to the upper surface of the nut block 41, and the lower plate 42.
- An intermediate plate 43 fixed to the upper surface and an upper plate 44 fixed to the upper surface of the intermediate plate 43 are provided. Both side surfaces of the nut block 41 are slidably supported in the axial direction of the ball screw 3 by linear guide rails 31 attached to the inside of the housing member 2.
- the moving stage 4 is configured such that the upper plate 44 is located outside the housing member 2, and the middle plate 43, the lower plate 42, and the nut block 41 are located inside the housing member 2.
- the upper plate 44 is configured to project outward from the openings 27 and 28, and can be applied with a moving force by being connected to the guide object.
- rollers 61 to 66 that project horizontally are installed in a rotatable state as bypass means for bypassing the dustproof belts 29 and 30, respectively.
- the rollers 63 and 64 in the central portion are arranged to be one step lower than the rollers 61, 62, 65, and 66 on both ends in the axial direction (note that The roller denoted by reference numeral 65 is installed at a position facing the roller 66, but does not appear in Fig. 10. Therefore, in the following description, it will be written in parentheses.)
- the dust-proof belts 29 and 30 are bridged between the rollers 61 to 66 so that the upper plate 44 protruding outward from the openings 27 and 28 and the dust-proof belts 29 and 30 do not interfere with each other.
- the dustproof belts 29 and 30 are stretched over the rollers 61 to 66 so as to bypass the lower portion of the protruding portion of the upper plate 44, specifically, the left side ((a) in FIG. 10).
- the dust-proof belt 29 on the upper side of the paper passes through the upper side of the front roller 61, spans the lower side of the central roller 63, and further passes the upper side of the rear roller (65).
- the dust-proof belt 30 on the right side passes over the front roller 62 and is bridged below the central roller 63, and further on the rear side.
- the upper side of the roller 66 is passed.
- the linear actuator 1 with a dustproof mechanism since the linear actuator 1 with a dustproof mechanism according to the prior art has the above-described configuration, the openings 27 and 28 formed along the movement locus of the moving stage 4 are blocked by the dustproof belts 29 and 30. It is possible to always maintain the state. Accordingly, the dust generated from the sliding portion of the ball screw 3 and the ball screw nut included in the nut block 41, the sliding portion of the nut block 41 and the linear guide rail 31, and the like is separated from the opening 27, which the housing member 2 includes. No leakage occurs to the outside via 28.
- the dust-proof belts 29 and 30 are disposed inside the housing member 2, and each dust-proof belt with respect to the moving stage 4 that moves along the openings 27 and 28. Since 29 and 30 can be detoured below the moving stage 4, even when the moving stage 4 moves, the sealed state of the openings 27 and 28 by the dustproof belts 29 and 30 can always be maintained. ing.
- the dustproof belts 29 and 30 are structured to be attached to the upper surfaces of the end blocks 24 and 25 by bolts via the plates 70 and 70, and the dustproof belts 29 and 30 are loosened. It is attached with a predetermined tension applied. According to such a conventional structure, it is difficult to apply tension uniformly in the width direction of the dustproof belts 29 and 30, and the dustproof belts 29 and 30 depend on the width dimension of the dustproof belts 29 and 30 and the tension applied. However, there is a possibility that the sealing performance between the housing member 2 and the dustproof belts 29 and 30 may be deteriorated by bending in the vertical direction as shown in FIGS. 12 (a) and 12 (b).
- the dustproof belts 29 and 30 are curved in an upward bow shape as shown in FIG. It has been found that when it becomes large (approximately 50 mm or more), it curves in a downward bow-like shape as shown in FIG.
- the dustproof belt 29 , 30 is curved and the mounting state thereof changes, and the mounting state of the dustproof belts 29, 30 cannot be adjusted in accordance with the curved state of the dustproof belts 29, 30.
- the present invention has been made to solve the above-described problems, and prevents the dustproof belt from being deformed regardless of the size of the linear actuator.
- An object of the present invention is to provide a linear actuator with a dustproof mechanism that can enhance the sealing performance between the two and exhibit high dustproof performance.
- a linear actuator with a dustproof mechanism that solves the above-mentioned problems has a ball screw and a ball screw nut that engages with the ball screw, and in the axial direction of the ball screw as the ball screw rotates.
- a moving stage that is freely reciprocated linearly; a housing member that is disposed so as to cover at least the ball screw; an opening formed in the housing member along a moving locus of the moving stage; and the opening.
- a dustproof belt that is bridged inside the housing member by mounting means disposed at both ends of the housing member for sealing, and maintaining the sealing of the opening by the dustproof belt, In order to realize movement along the opening, the dust-proof belt at a position overlapping the moving stage is bypassed.
- the dust-proof belt is wound around the mounting means and is sandwiched between the mounting means and the end of the housing member.
- the dustproof belt is wound around the attachment means and is sandwiched between the attachment means and the end of the housing member, so that the tension is uniformly and strongly applied in the width direction of the dustproof belt.
- the dustproof belt can be fixed on the surface where the end of the housing member and the mounting means come into contact with each other, deformation of the dustproof belt can be prevented and the sealing performance can be improved.
- FIG. 1 It is an external appearance perspective view of the linear actuator with a dustproof mechanism concerning a 1st embodiment. It is a figure for demonstrating the external appearance structure of the linear actuator with a dust-proof mechanism which concerns on 1st Embodiment, (a) is a top surface, (b) is a front in the figure, (c) is a motor side in the figure. In the figure, (d) shows the side surface opposite to the motor. It is a perspective view for demonstrating the internal structure of the linear actuator with a dustproof mechanism which concerns on 1st Embodiment, (a) is a top view, (b) is a front view, (c) in the figure.
- (a) is a figure for demonstrating the position of the attachment hole provided in the dustproof belt.
- (B) is sectional drawing which showed the attachment state of the dustproof belt.
- (c) shows a cross section of a linear actuator with a dustproof mechanism. It is a figure which shows the attachment method of the dustproof belt of the linear actuator with a dustproof mechanism which concerns on a prior art. It is sectional drawing which showed the attachment state of the dust-proof belt of the linear actuator with a dust-proof mechanism based on a prior art, (a) is a figure which shows the state which slackened up like the bow upwards, (b) is downward in the figure It is a figure which shows the state which became loose like a bow.
- FIG. 1 is an external perspective view of the linear actuator with a dustproof mechanism according to the first embodiment
- FIG. 2 is an explanatory view of the external configuration of the linear actuator with a dustproof mechanism according to the first embodiment
- 3A is a top view
- FIG. 3B is a front view
- FIG. 3C is a motor side surface
- FIG. 3D is an anti-motor side surface.
- FIG. 4C shows a side view of the motor side
- FIG. 4D shows a side view of the non-motor side.
- FIG. 4 explains a method for attaching the dustproof belt of the linear actuator with a dustproof mechanism according to the first embodiment.
- Fig. 5 is a top perspective view for illustrating a case with a dustproof mechanism according to the first embodiment.
- FIG. 6 is a diagram for explaining a method of attaching the dustproof belt of the actuator, and FIG. 6 is a diagram showing a configuration of the dustproof belt of the linear actuator with a dustproof mechanism according to the first embodiment. It is a figure for demonstrating the position of the attachment hole provided in the dustproof belt, and (b) in the figure is sectional drawing which showed the attachment state of the dustproof belt.
- the linear actuator 100 with a dustproof mechanism according to the first embodiment has substantially the same configuration as the linear actuator 1 with a dustproof mechanism according to the above-described prior art, but for further improvement of the dustproof function, As shown in FIGS. 1 to 3, end plate covers 105a and 105b that can cover both end portions of the housing member 2 are provided.
- the characteristic of the linear actuator 100 with a dustproof mechanism according to the present embodiment is the method of attaching the dustproof belts 29 and 30.
- a method for attaching the dustproof belts 29 and 30 will be described in detail with reference to FIGS.
- the mounting means 71 attached to the end block 24 on the counter-motor side will be described as an example, and the shape and mounting method will be specifically described.
- the end block 25 on the motor side is the end on the counter-motor side. Since the structure is almost the same as that of the block 24, a reference numeral is attached and a detailed drawing is omitted.
- the dustproof belts 29 and 30 of the linear actuator with a dustproof mechanism according to the present embodiment are wound around the mounting means 71 whose ends are formed in a block shape, and the mounting means 71 and It is clamped and attached by the end blocks 24 and 25.
- the attachment means 71 and the upper surface of the end block 24 of the housing member 2 are attached so as to be located on the same plane, and the dustproof belts 29 and 30 are provided on the upper surface of the attachment means 71 and the side surface facing the end block 24. Mounted in surface contact.
- the dustproof belts 29 and 30 are attached to the attachment means 71 by screwing bolts into bolt holes drilled in the lower surface of the attachment means 71. As described above, the dustproof belts 29 and 30 are wound around the mounting means 71 by a quarter of the circumference along the lower surface of the mounting means 71, the side surface and the upper surface facing the end block 24.
- the dustproof belts 29 and 30 are attached to the attachment means 71 by attachment holes 121 formed close to both end sides in the width direction of the dustproof belts 29 and 30. As described above, when the attachment holes 121 are formed on both end sides of the dustproof belts 29 and 30, sufficient tension can be applied to both ends of the dustproof belts 29 and 30 when the dustproof belts 29 and 30 are bridged. .
- the dustproof belts 29 and 30 are wound around the mounting means 71 and are sandwiched between the mounting means 71 and the end blocks 24 and 25 of the housing member 2.
- the sheets 29 and 30 are tensioned by the contact surfaces of the attachment means 71 and the end blocks 24 and 25. According to such a configuration, the entire dustproof sheets 29 and 30 can be pulled uniformly and strongly over the entire width direction. Therefore, as shown in FIG. 6B, the dustproof belts 29 and 30 can be bridged horizontally along the longitudinal direction of the housing member 2, and a gap between the dustproof belts 29 and 30 and the housing member 2 is formed. It is possible to improve the sealing performance of the linear actuator 100 with the dustproof mechanism by securely sealing.
- the linear actuator 100 with a dustproof mechanism according to the first embodiment has been described.
- the second embodiment to be described next describes an example of a linear actuator with a dustproof mechanism having a shape different from that of the linear actuator with a dustproof mechanism according to the first embodiment. Note that members that are the same as or similar to those in the first embodiment described above are given the same reference numerals, and descriptions thereof are omitted.
- FIG. 7 is a view for explaining a method of attaching the dustproof belt of the linear actuator with dustproof mechanism according to the second embodiment
- FIG. 8 is a bypass means of the linear actuator with dustproof mechanism according to the second embodiment
- FIG. 9 is a diagram illustrating a configuration of a dustproof belt of a linear actuator with a dustproof mechanism according to the second embodiment.
- the linear actuator with a dustproof mechanism according to the present embodiment is an embodiment related to a linear actuator with a dustproof mechanism that is larger than the linear actuator with a dustproof mechanism according to the first embodiment described above.
- 1 shows an embodiment relating to a linear actuator with a dustproof mechanism whose dimension in the width direction perpendicular to the longitudinal direction of the dustproof belts 29 and 30 is approximately 50 mm or more.
- the dustproof belts 29 and 30 of the linear actuator with a dustproof mechanism according to the present embodiment are disposed below the attachment means 71 a in the same manner as the dustproof belts 29 and 30 according to the first embodiment described above. It is attached by bolts, is wound around the attachment means 71a by 3/4 round, and is attached to the housing member 2 by being sandwiched between the end blocks 24 and 25 and the attachment means 71a.
- the upper surface of the attaching means 71a refers to a surface facing the openings 27 and 28 of the linear actuator with a dustproof mechanism according to this embodiment, and is a surface facing the dustproof belts 29 and 30 in FIG.
- the tension applied to the dustproof belts 29 and 30 can be released at both ends, and the tension at both ends of the dustproof belts 29 and 30 is slightly higher than that at the center. Can be weakened. Therefore, in a large linear actuator with a dustproof mechanism, as shown in FIG. 12B, the tension at both ends of the dustproof belts 29 and 30 is increased, and the dustproof belts 29 and 30 are bent into a downward bow shape.
- the dust-proof belt 29 is horizontally disposed along the longitudinal direction of the housing member 2 in the linear actuator 100 with the dust-proof mechanism according to the first embodiment as shown in FIG. , 30 can be bridged, and the gap between the dustproof belts 29, 30 and the housing member 2 can be reliably sealed to improve the sealing performance of the linear actuator with a dustproof mechanism.
- escape means 61a to 66a are formed in the bypass means of the linear actuator with a dustproof mechanism according to the present embodiment.
- the bypass means has substantially the same configuration as that of the conventional linear actuator with a dustproof mechanism described in the background section, but the rollers 61 to 66 constituting the bypass means are all formed with the same escape means. 8 shows the details of the rollers 61 and 62 in detail, and the description of the remaining rollers 63 to 66 is omitted.
- the rollers 61 and 62 are rotatably attached to an intermediate plate 43 placed on a lower plate 42 that constitutes a moving stage, and dustproof belts 29 and 30 are bridged over the rollers 61 and 62. . Further, the rollers 61 and 62 are provided with escape means 61a and 62a having both ends in the axial direction having a smaller diameter than the central side, and are stepped along the axial direction. The escape means 61a and 62a are formed in the vicinity of positions facing both end portions of the dustproof belts 29 and 30, like the escape grooves 72 and 72 of the mounting means 71a described above.
- the tension applied to the dustproof belts 29 and 30 can be released at both ends thereof, and both end portions of the dustproof belts 29 and 30 are released.
- the tension at can be made slightly weaker than at the center. Therefore, in a large linear actuator with a dustproof mechanism, as shown in FIG. 12 (b), the tension at both ends of the dustproof belts 29 and 30 increases, and the dustproof belts 29 and 30 are bent into a downward bow shape.
- the dust-proof belt 29 is horizontally disposed along the longitudinal direction of the housing member 2 in the linear actuator 100 with the dust-proof mechanism according to the first embodiment as shown in FIG. , 30 can be bridged, and the gap between the dustproof belts 29, 30 and the housing member 2 can be reliably sealed to improve the sealing performance of the linear actuator with a dustproof mechanism.
- the dustproof belts 29 and 30 of the linear actuator with a dustproof mechanism are provided with a mounting hole 120 on the center side in the width direction orthogonal to the longitudinal direction. , 30 is configured to weaken the tension applied to both ends thereof. Therefore, by reducing the tension, the dustproof belts 29 and 30 can be bridged horizontally along the longitudinal direction of the housing member 2, and the gap between the dustproof belts 29 and 30 and the housing member 2 is surely sealed. Thus, the sealing performance of the linear actuator with a dustproof mechanism can be improved.
- the dustproof belts 29 and 30 have been described as being wrapped around the mounting means 71 and 71a by 3/4.
- the dustproof belts 29 and 30 are connected to the end blocks 24 and 25 and the mounting means 71. , 71a may be wound a plurality of times.
- the escape means is not limited to the stepped shape, and the dustproof belts 29, 30 You may form a groove
- the linear actuator with a dustproof mechanism has a dustproof mechanism that can appropriately adjust the tension applied to the dustproof belt and can reliably seal the gap between the housing member and the dustproof belt to improve the sealing performance.
- a linear actuator can be provided.
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Abstract
Description
図1から図6を用いて、第1の実施形態に係る防塵機構付きリニアアクチュエータ100の説明を行う。ここで、図1は、第1の実施形態に係る防塵機構付きリニアアクチュエータの外観斜視図であり、図2は、第1の実施形態に係る防塵機構付きリニアアクチュエータの外観構成を説明するための図であり、図中(a)は上面を、図中(b)は正面を、図中(c)はモータ側側面を、図中(d)は反モータ側側面を示しており、図3は、第1の実施形態に係る防塵機構付きリニアアクチュエータの内部構成を説明するための透視図であり、図中(a)は上面視を、図中(b)は正面視を、図中(c)はモータ側側面視を、図中(d)は反モータ側側面視を示しており、図4は、第1の実施形態に係る防塵機構付きリニアアクチュエータの防塵ベルトの取付方法を説明するための上面斜視図であり、図5は、第1の実施形態に係る防塵機構付きリニアアクチュエータの防塵ベルトの取付方法を説明するための図であり、図6は、第1の実施形態に係る防塵機構付きリニアアクチュエータの防塵ベルトの構成を示す図であり、図中(a)は防塵ベルトに設けられた取付孔の位置を説明するための図であり、図中(b)は防塵ベルトの取付状態を示した断面図である。
以上、第1の実施形態に係る防塵機構付きリニアアクチュエータ100について説明した。次に説明する第2の実施形態は、第1の実施形態に係る防塵機構付きリニアアクチュエータと異なる形状を有する防塵機構付きリニアアクチュエータの実施例について説明を行うものである。なお、上述した第1の実施形態の場合と同一又は類似する部材については、同一符号を付して説明を省略する。
Claims (5)
- ボールねじと、
前記ボールねじに係合するボールねじナットを有し、前記ボールねじの回転運動にともなって該ボールねじの軸方向に往復直線運動自在とされる移動ステージと、
少なくとも前記ボールねじを覆って配設されるハウジング部材と、
前記移動ステージの移動軌跡に沿って前記ハウジング部材に形成される開口部と、
前記開口部を封鎖するために前記ハウジング部材の両端部に配置される取付手段によって前記ハウジング部材の内側に架け渡される防塵ベルトと、
を備え、前記防塵ベルトによる前記開口部の封鎖を維持しながら前記移動ステージの前記開口部に沿った移動を実現するために、前記移動ステージと重畳する位置にある前記防塵ベルトを迂回させるための迂回手段を前記移動ステージに設けた防塵機構付きリニアアクチュエータにおいて、
前記防塵ベルトは、前記取付手段に巻きつけられるとともに、前記取付手段と前記ハウジング部材の端部によって挟持されていることを特徴とする防塵機構付きリニアアクチュエータ。 - 請求項1に記載の防塵機構付きリニアアクチュエータにおいて、
前記防塵ベルトは、前記取付手段に形成されたボルト孔に、前記防塵ベルトに形成された取付孔を介して取付ボルトを螺合することによって取付られており、
前記取付孔は、前記防塵ベルトの長手方向と直交する幅方向における両端側に形成されていることを特徴とする防塵機構付きリニアアクチュエータ。 - 請求項1に記載の防塵機構付きリニアアクチュエータにおいて、
前記防塵ベルトは、前記取付手段に形成されたボルト孔に、前記防塵ベルトに形成された取付孔を介して取付ボルトを螺合することによって取付られており、
前記取付孔は、前記防塵ベルトの長手方向と直交する幅方向における中心側に形成されていることを特徴とする防塵機構付きリニアアクチュエータ。 - 請求項2または3に記載の防塵機構付きリニアアクチュエータにおいて、
前記取付手段の少なくとも前記防塵ベルトの前記幅方向における両端部に対向する位置に逃げ面が形成されていることを特徴とする防塵機構付きリニアアクチュエータ。 - 請求項2から4のいずれか1項に記載の防塵機構付きリニアアクチュエータにおいて、
前記迂回手段には、前記防塵ベルトの前記幅方向における両端部に対向する位置に逃げ手段が形成されていることを特徴とする防塵機構付きリニアアクチュエータ。
Priority Applications (4)
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KR1020127021327A KR101234438B1 (ko) | 2010-01-15 | 2010-12-07 | 방진 기구가 구비된 리니어 액추에이터 |
DE112010005138.0T DE112010005138B4 (de) | 2010-01-15 | 2010-12-07 | Mit staubschutzmechanismus versehener linearantrieb |
CN2010800610869A CN102713354B (zh) | 2010-01-15 | 2010-12-07 | 设置有防尘机构的线性致动器 |
US13/522,263 US8650978B2 (en) | 2010-01-15 | 2010-12-07 | Linear actuator provided with dust-proof mechanism |
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JP2010007050A JP4769899B2 (ja) | 2010-01-15 | 2010-01-15 | 防塵機構付きリニアアクチュエータ |
JP2010-007050 | 2010-01-15 |
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US (1) | US8650978B2 (ja) |
JP (1) | JP4769899B2 (ja) |
KR (1) | KR101234438B1 (ja) |
CN (1) | CN102713354B (ja) |
DE (1) | DE112010005138B4 (ja) |
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CN103946589A (zh) * | 2011-11-22 | 2014-07-23 | 株式会社Iai | 致动器 |
CN105378341B (zh) * | 2012-11-30 | 2018-01-19 | 迪宝克技术公司 | 用于运动模拟器的线性致动器 |
CN104653737B (zh) * | 2013-11-20 | 2020-08-14 | 科沃斯商用机器人有限公司 | 丝杠螺母副保护装置 |
ES2924869T3 (es) * | 2017-05-17 | 2022-10-11 | Renishaw Plc | Aparato codificador |
CN107327481A (zh) * | 2017-06-30 | 2017-11-07 | 成都福誉科技有限公司 | 一种封闭式直线模组及其制作方法 |
CN109386545A (zh) * | 2017-08-07 | 2019-02-26 | 银泰科技股份有限公司 | 具有防尘效果的线性模组 |
TWI644033B (zh) * | 2017-08-10 | 2018-12-11 | 銀泰科技股份有限公司 | 線性模組 |
CN109424709B (zh) * | 2017-08-31 | 2022-02-15 | 上海微电子装备(集团)股份有限公司 | 一种线性模组及其工作方法 |
CN109915484B (zh) | 2017-12-13 | 2020-08-14 | 上银科技股份有限公司 | 线性模块 |
CN108189075B (zh) * | 2017-12-29 | 2021-07-27 | 弗徕威智能机器人科技(上海)有限公司 | 一种遮挡头部滑槽的装饰机构 |
TWI685623B (zh) | 2018-02-08 | 2020-02-21 | 上銀科技股份有限公司 | 用於線性模組之防塵裝置 |
CN108381526B (zh) * | 2018-04-28 | 2023-12-12 | 沈阳众拓机器人设备有限公司 | 一种机器人运动单元 |
JP7511237B2 (ja) | 2019-12-17 | 2024-07-05 | 株式会社アイエイアイ | アクチュエータ |
USD971281S1 (en) * | 2021-08-18 | 2022-11-29 | Cyltronic Ag | Linear actuator |
CN114571112A (zh) * | 2022-03-29 | 2022-06-03 | 锐卡(常州)科技有限公司 | 激光气动卡盘前卡的改进结构 |
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- 2010-01-15 JP JP2010007050A patent/JP4769899B2/ja active Active
- 2010-12-07 CN CN2010800610869A patent/CN102713354B/zh active Active
- 2010-12-07 KR KR1020127021327A patent/KR101234438B1/ko active IP Right Grant
- 2010-12-07 DE DE112010005138.0T patent/DE112010005138B4/de active Active
- 2010-12-07 WO PCT/JP2010/071904 patent/WO2011086791A1/ja active Application Filing
- 2010-12-07 US US13/522,263 patent/US8650978B2/en active Active
- 2010-12-20 TW TW099144771A patent/TWI525271B/zh active
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Also Published As
Publication number | Publication date |
---|---|
KR101234438B1 (ko) | 2013-02-18 |
CN102713354A (zh) | 2012-10-03 |
JP2011144897A (ja) | 2011-07-28 |
US8650978B2 (en) | 2014-02-18 |
KR20120094967A (ko) | 2012-08-27 |
TW201144633A (en) | 2011-12-16 |
TWI525271B (zh) | 2016-03-11 |
JP4769899B2 (ja) | 2011-09-07 |
CN102713354B (zh) | 2013-09-11 |
DE112010005138B4 (de) | 2017-06-22 |
DE112010005138T5 (de) | 2012-11-08 |
US20130147286A1 (en) | 2013-06-13 |
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