WO2022153479A1 - 歯車対 - Google Patents
歯車対 Download PDFInfo
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- WO2022153479A1 WO2022153479A1 PCT/JP2021/001226 JP2021001226W WO2022153479A1 WO 2022153479 A1 WO2022153479 A1 WO 2022153479A1 JP 2021001226 W JP2021001226 W JP 2021001226W WO 2022153479 A1 WO2022153479 A1 WO 2022153479A1
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- WIPO (PCT)
- Prior art keywords
- gear
- tooth
- meshing
- pressure angle
- line
- Prior art date
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- 210000004746 tooth root Anatomy 0.000 abstract 3
- 230000007704 transition Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/14—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only
Definitions
- the present invention relates to a gear pair of a first gear and a second gear having more teeth than the first gear.
- the "meshing line of teeth that mesh with each other” means a line segment corresponding to the movement locus of the contact points (meshing points) of the teeth that mesh with each other.
- “sharing the meshing line” means that the contact point continuously moves on a continuous meshing line in the process from the meshing start point to the meshing end point.
- the meshing line is branched (that is, the meshing line is shared). It means that there is no situation in which teeth that mesh with each other come into contact with each other at two or more points at the same time, or a situation in which discontinuity (that is, contact is interrupted) does not occur.
- the “meshing line length” means the length of the line segment from the meshing start point of the meshing line.
- the "relative curvature” is defined as the sum of the curvature of the tooth profile curve of one tooth and the curvature of the tooth profile curve of the other tooth at the contact points of the teeth that mesh with each other, and this relative curvature is small. The more the stress limit near the tooth surface becomes higher, the higher the surface pressure strength tends to be.
- the meshing lines of the teeth that mesh with each other are connected from the meshing start point to the meshing end point (that is, they share the meshing line), so that there is an advantage that the meshing becomes smooth.
- the tooth profile curve of the involute gear tends to have a larger relative curvature toward the tooth root side and a decrease in the surface pressure strength on the tooth root side.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a gear pair that can solve the above problems at once.
- the present invention relates to a gear pair in which a first gear and a second gear having a larger number of teeth than the first gear share a meshing line of teeth that mesh with each other. At least a part of the above includes a region where the pressure angle is not constant, and the pressure angle increases monotonously in a broad sense in the section from the pitch point in the meshing line to the end point on the tooth root side of the first gear. It is a feature of 1.
- the second feature is that the pressure angle increases monotonously in a broad sense in the section from the pitch point in the meshing line to the end point on the tooth tip side of the first gear. ..
- the present invention has a constant pressure angle in a section from a pitch point on the meshing line to a predetermined intermediate point on the tooth root side of the first gear, and the tooth root.
- the third feature is that the pressure angle increases in the section from the predetermined intermediate point on the side to the end point on the tooth root side of the first gear.
- the pressure angle is constant in the section from the pitch point on the meshing line to the predetermined intermediate point on the tooth tip side of the first gear
- the fourth feature is that the pressure angle increases in the section from the predetermined intermediate point on the tooth tip side to the end point on the tooth tip side of the first gear.
- the fifth feature of the present invention is that the value obtained by differentiating the curvature of the tooth profile curve according to the length of the meshing line always fluctuates over the entire meshing line. do.
- the present invention has a sixth feature that the pressure angle is larger than 0 degrees over the entire meshing line.
- the present invention has, in addition to any one of the first to sixth features, a seventh feature that the first and second gears are forged bevel gears.
- the teeth that mesh with each other share a meshing line, so that the first and second gears Can achieve smooth meshing.
- the meshing line since at least a part of the meshing line includes a region where the pressure angle is not constant, the pressure angles of both gears are changed in various modes in relation to the meshing line while sharing the meshing line as described above. It is possible to achieve both the desired characteristics (for example, strength) according to the specification and smooth meshing.
- the relative curvature can be reduced and the surface pressure strength is increased on the tooth root side of the first gear.
- the tooth profile curve approaches a negative curvature or becomes a negative curvature on the tooth root side, the tooth profile expands toward the tooth root rather than simply increasing the pressure angle, thus increasing the bending strength. be able to. Therefore, it is possible to effectively increase the strength of the small tooth number gear (that is, the first gear) on the tooth root side, which has a large load load and is likely to be damaged, particularly on the tooth root side.
- the pressure angle increases monotonously in a broad sense in the section from the pitch point on the meshing line to the end point on the tooth tip side of the first gear, so that the teeth of the first gear (that is, the small tooth number gear)
- the relative curvature can be reduced not only on the original side but also on the tooth tip side, and the surface pressure strength can be increased.
- the contact rigidity of each tooth fluctuates as the number of meshing teeth fluctuates during meshing, but according to the third feature, from the pitch point on the meshing line to a predetermined intermediate point on the tooth root side of the first gear.
- the pressure angle is constant in the section, and the pressure angle increases in the section from the predetermined intermediate point on the tooth root side to the end point on the tooth root side of the first gear, while according to the fourth feature, in the meshing line.
- the pressure angle is constant in the section from the pitch point to the predetermined intermediate point on the tooth tip side of the first gear, and the pressure angle is constant in the section from the predetermined intermediate point on the tooth tip side to the end point on the tooth tip side of the first gear. It will increase.
- the meshing region having a large number of meshing teeth (thus, the contact rigidity of each tooth is high) is set as a constant pressure angle section having a large relative curvature and a low contact rigidity of the tooth surface. Since the amount of tooth surface deformation due to the Hertz contact per tooth can be made relatively large, the increase / decrease in the contact rigidity of the tooth surface due to the fluctuation in the number of meshing teeth during meshing can be offset by the increase / decrease in the tooth surface deformation amount based on the Hertz contact. Therefore, even if the number of meshing teeth fluctuates, the meshing rigidity of the entire tooth profile can be made as uniform as possible (that is, the difference in contact rigidity can be alleviated). Moreover, by specially providing the above-mentioned constant pressure angle section, the fluctuation of the relative curvature during meshing can be reduced, so that smoother meshing can be realized.
- the curvature distribution can alleviate the difference in contact rigidity of the tooth surface during meshing (for example, the relative curvature of the one-tooth meshing region is reduced and the two-tooth meshing region is reduced. It is possible to increase the relative curvature).
- the pressure angle is larger than 0 degrees in the entire area of the meshing line, the relative curvature at the contact points of the teeth that mesh with each other becomes small on average, and the surface pressure strength can be increased.
- the first and second gears are forged bevel gears, even a complicated spherical tooth profile of the bevel gear can be easily and accurately formed by forging.
- FIG. 1 shows a gear pair according to the first embodiment, (A) shows an example of tooth surfaces and meshing lines of teeth that mesh with each other, and (B) shows an example of setting a pressure angle with respect to the length of the meshing line. (C) is a diagram showing an example of changes in the differential value and the relative curvature of the curvature of the tooth profile curve with respect to the meshing line length.
- FIG. 2 shows a gear pair according to the second embodiment, (A) shows an example of tooth surfaces and meshing lines of teeth that mesh with each other, and (B) shows an example of setting a pressure angle with respect to the length of the meshing line.
- FIG. 3 shows a gear pair according to the third embodiment
- (A) shows an example of tooth surfaces and meshing lines of teeth that mesh with each other
- (B) shows an example of setting a pressure angle with respect to the length of the meshing line
- (C) is a diagram showing an example of changes in the differential value and the relative curvature of the curvature of the tooth profile curve with respect to the meshing line length.
- FIG. 4 is an explanatory diagram illustrating the definition of the pressure angle of the spherical tooth profile in the gear pair according to the fourth embodiment.
- This gear pair is a pair of first and second gears G1 and G2 in which the respective rotation axes are parallel spur gears and mesh with each other.
- the lower first gear G1 in FIG. 1A is a small-diameter gear having a small number of teeth and functions as a drive gear.
- the upper second gear G2 is a large-diameter gear having more teeth than the first gear G1 and functions as a driven gear. It should be noted that which of the first gear G1 and the second gear G2 is the drive side or the driven side is arbitrary.
- the contact points (hereinafter referred to as “meshing points”) of the teeth that mesh with each other of the first and second gears G1 and G2 are pitch points Pp on the meshing line L indicated by thick dotted lines.
- An example of the meshing mode between the tooth surfaces (the thick solid line is the tooth surface of the first gear G1 and the thick chain line is the tooth surface of the second gear G2) is shown.
- An example of the tooth surface at the end is shown.
- the tooth surfaces of the first and second gears G1 and G2 on the opposite side to the meshing side are not shown, but in the present embodiment, the shape of the tooth surface on the meshing side is symmetrical. Further, in FIG. 1A, the first gear G1 rotates counterclockwise and the second gear G2 rotates clockwise.
- the first and second gears G1 and G2 rotate in conjunction with each other, and the meshing points of the teeth that mesh with each other move continuously accordingly.
- the movement locus that is, the meshing line L is a smooth curve as shown by the thick dotted line in FIG. 1 (A). That is, the meshing lines L of the first and second gears G1 and G2 are not straight lines like the meshing lines of the involute gears. That is, the first and second gears G1 and G2 are not involute gears.
- the teeth that mesh with each other of the first and second gears G1 and G2 share the meshing line L.
- the meshing points of the teeth that mesh with each other are connected in the process from the meshing start point to the end point (that is, the end point Pe1 on the tooth root side of the first gear G1 to the end point Pe2 on the tooth tip side). Continuously moves on the meshing line L of. That is, the situation where the meshing line L branches (that is, the teeth that mesh with each other contact at two or more points at the same time) or the situation where the meshing line L becomes discontinuous (that is, the contact is interrupted) does not occur.
- the pressure angle ⁇ is not constant over the entire meshing line L.
- the pressure angle ⁇ will be described.
- the intersection angle ⁇ on the sharp angle side of the tangent line La at the pitch point of the pitch circle diameter and the tangent line Lb of the meshing line L is defined as the pressure angle at the meshing point.
- the change mode of the pressure angle ⁇ with respect to the meshing line length is set to be, for example, the change mode shown by the thick solid line in FIG. 1 (B). .. That is, the pressure angle ⁇ increases in the section from the pitch point Pp on the meshing line L to the end point Pe1 on the tooth root side of the first gear G1, and at the same time, the pitch point Pp on the meshing line L on the tooth tip side of the first gear G1
- the pressure angle ⁇ is set to increase in the section up to the end point Pe2.
- the "meshing line length" means the length of the line segment from the meshing start point of the meshing line L (that is, the end point Pe1 on the tooth root side of the first gear G1) as described above.
- the pressure angle ⁇ is set to be larger than 0 degrees (preferably 10 degrees or more) over the entire meshing line L. Further, as is clear from FIG. 1 (B), the pressure angle ⁇ continuously changes over the entire meshing line L, and there is no point where the curvature diverges on the tooth profile curve.
- the thick solid line in FIG. 1C shows how the value obtained by differentiating the curvature of the tooth profile curve of the first gear G1 according to the meshing line length (that is, the curvature differential value) changes according to the meshing line length. According to this, it can be seen that the derivative value of the curvature is not constant over the entire tooth profile curve, that is, it constantly fluctuates. Although not shown, since the first and second gears G1 and G2 share the meshing line L, the value obtained by differentiating the curvature of the tooth profile curve of the second gear G2 according to the meshing line length is also the same. It is not constant over the entire curve, that is, it constantly fluctuates.
- the thick dotted line in FIG. 1C shows how the relative curvature of the tooth profile changes according to the length of the meshing line.
- the "relative curvature” is defined as the sum of the curvature of the tooth profile curve of one tooth and the curvature of the tooth profile curve of the other tooth at the meshing points of the teeth that mesh with each other as described above, and this relative curvature is small. The more the stress limit near the tooth surface becomes larger, the more the surface pressure strength tends to increase.
- the pressure angle ⁇ increases in the section from the pitch point Pp in the meshing line L to the end point Pe1 on the tooth root side of the first gear G1 and from the pitch point Pp to the tooth tip side of the first gear G1.
- the pressure angle ⁇ is constant in the section from the pitch point Pp in the meshing line L to the predetermined intermediate point Pm1 on the tooth root side of the first gear G1.
- the mode of change of the pressure angle ⁇ with respect to the meshing line length is shown by the thick solid line in FIG. 2 (B).
- the thick solid line in FIG. 2C shows how the curvature differential value obtained by differentiating the curvature of the tooth profile curve of the first gear G1 according to the meshing line length changes according to the meshing line length.
- the thick dotted line in FIG. 2C shows how the relative curvature of the tooth profile curve changes according to the meshing line length.
- the pressure angle ⁇ increases in the section from the pitch point Pp in the meshing line L to the end point Pe1 on the tooth root side of the first gear G1 and from the pitch point Pp to the tooth tip side of the first gear G1.
- the pressure angle ⁇ increases in the section from the pitch point Pp in the meshing line L to the end point Pe1 on the tooth root side of the first gear G1.
- the mode of change of the pressure angle ⁇ with respect to the meshing line length is shown by the thick solid line in FIG. 3 (B).
- the thick solid line in FIG. 3C shows how the curvature differential value obtained by differentiating the curvature of the tooth profile curve of the first gear G1 according to the meshing line length changes according to the meshing line length.
- the thick dotted line in FIG. 3C shows how the relative curvature of the tooth profile curve changes according to the meshing line length.
- the first and second gears G1 and G2 of each embodiment mesh with, for example, the basic design data of the double gears G1 and G2 (for example, the number of teeth, the diameter of the pitch circle, the diameter of the root circle / tip circle, etc.). It can be calculated by a computer based on the data of the pressure angle ⁇ (see (B) in FIGS. 1 to 3) to be set at each meshing point on the line L, and the tooth profile curve is uniquely calculated from the calculation result. It can be decided. Then, it is formed by forging or precision machining based on the determined tooth profile curve.
- the basic design data of the double gears G1 and G2 for example, the number of teeth, the diameter of the pitch circle, the diameter of the root circle / tip circle, etc.
- the first and second gears G1 and G2 can realize smooth meshing, and the transmission efficiency is improved. Is planned.
- the pressures of the gears G1 and G2 are associated with the meshing line L while sharing the meshing line L as described above.
- the angle ⁇ can be set in various changing modes, and it is possible to achieve both a desired characteristic (for example, strength) according to the setting and smooth meshing.
- the pressure angle ⁇ increases monotonically in a broad sense in the section from the pitch point Pp in the meshing line L to the end point Pe1 on the tooth root side of the first gear G1 (more specifically, the first gear pair). In the first embodiment, it increases, in the second embodiment, it increases after a constant transition, and in the third embodiment, it changes constant in the middle of the increase).
- the relative curvature can be reduced on the tooth root side of the first gear G1 and the surface pressure strength can be increased, and the tooth profile curve approaches the negative curvature or becomes a negative curvature on the tooth root side. Since the tooth profile spreads toward the tooth root rather than increasing the pressure angle ⁇ , the bending strength can be increased. Therefore, it is possible to effectively increase the strength on the tooth root side of the small tooth number gear (first gear G1), which has a large load load and is likely to be damaged, particularly on the tooth root side.
- not only the pressure angle ⁇ increases monotonically in a broad sense in the section from the pitch point Pp in the meshing line L to the end point Pe1 on the tooth root side of the first gear G1.
- the pressure angle ⁇ also increases monotonically in a broad sense in the section from the pitch point Pp to the end point Pe2 on the tooth tip side of the first gear G1.
- the relative curvature can be reduced not only on the tooth root side of the first gear G1 (that is, the small tooth number gear) but also on the tooth tip side, and the surface pressure strength can be increased.
- the contact rigidity of each tooth fluctuates as the number of meshing teeth fluctuates during meshing.
- the pitch point Pp at the meshing line L The pressure angle ⁇ changes constantly in the section from the predetermined intermediate point Pm1 to the predetermined intermediate point Pm1 on the tooth root side of the first gear G1, and the pressure angle ⁇ in the section from the predetermined intermediate point Pm1 to the end point Pe1 on the tooth root side of the first gear G1.
- the pressure angle ⁇ remained constant in the section from the pitch point Pp to the predetermined intermediate point Pm2 on the tooth tip side of the first gear G1 and from the predetermined intermediate point Pm2 to the end point on the tooth tip side of the first gear G1.
- the pressure angle ⁇ increases in the section up to Pe2.
- the increase / decrease in the contact rigidity of the tooth surface due to the change in the number of meshing teeth during meshing can be offset by the increase / decrease in the amount of tooth surface deformation based on the Hertz contact.
- the meshing rigidity of the entire tooth profile can be made uniform as much as possible (that is, the difference in contact rigidity can be alleviated).
- Pm1 to Pp to Pm2 the fluctuation of the relative curvature during meshing can be reduced, so that smoother meshing can be realized.
- the value obtained by differentiating the curvature of the tooth profile curve according to the meshing line length always fluctuates.
- the relative curvature at the meshing points of the teeth that mesh with each other also constantly fluctuates during meshing, and the curvature distribution can alleviate the difference in contact rigidity of the tooth surfaces during meshing (for example, the relative curvature of one tooth meshing region is reduced, and 2 It is possible to make settings such as increasing the relative curvature of the tooth meshing region).
- the pressure angle is larger than 0 degrees (preferably 10 degrees or more) over the entire meshing line L. Is set to be.
- the relative curvature at the meshing points of the teeth that mesh with each other becomes smaller on average, and the surface pressure strength is increased.
- the pressure angle ⁇ continuously changes over the entire meshing line L, and there is no point on the tooth profile curve where the curvature diverges, that is, there is no point where the surface pressure is theoretically infinite. This point also improves the surface pressure strength.
- the first and second gears G1 and G2 forming a gear pair are spur gears having parallel rotation axes, but the first gear pair constituting the present invention is configured.
- the first and second gears G1 and G2 may be bevel gears whose rotating axes intersect, and the pair of the bevel gears (the tooth profile is not shown) is the gear pair of the fourth embodiment.
- the bevel gear pair of the fourth embodiment has a spherical tooth profile, and its pressure angle is defined as follows with reference to FIG.
- the tooth profile curves of the first and second gears G1 and G2 are determined by the method according to the present invention in the same manner as described in the first to third embodiments. It is formed by forging based on the determined tooth profile curve.
- the first and second gears G1 and G2 can be formed relatively easily and accurately by forging even if they have a complicated spherical tooth profile.
- the pinion gear made of the bevel gear in the differential gear mechanism is referred to as the first gear G1
- the side gear made of the bevel gear meshing with the pinion gear is referred to as the second gear G2.
- Embodiments are also feasible.
- the first and second gears G1 and G2 forming a gear pair are exemplified as spur gears in which the respective rotation axes are parallel, but the respective rotation axes are parallel. It may be an oblique gear.
- tooth profile curves of the first and second gears G1 and G2 according to the present invention are shown according to the first to third embodiments, various tooth profile curves can be set without being limited to these specific examples.
- a concave surface on the tooth root side and a convex surface on the tooth tip side are connected, (2) a concave surface on the tooth root side is connected to a convex surface on the tooth tip side via a predetermined transition zone, (3). It is possible to set one that extends linearly from the concave surface on the tooth root side to the tooth tip, and (4) one in which a plurality of patterns of transition zones are interposed between the concave surface on the tooth root side and the convex surface on the tooth tip side.
- the meshing lines L of the teeth that mesh with each other of the first and second gears G1 and G2 are shared, and the pressure angle ⁇ is not constant at least a part of the meshing lines L.
- the tooth profile curve is determined provided that the region is included.
- the concave surface and the tooth on the tooth root side are similar to the tooth profile pattern of the spur gear in the first to third embodiments. Those that connect to the convex surface on the tip side, (2) Those that connect from the concave surface on the tooth root side to the convex surface on the tooth tip side via a predetermined transition zone, (3) Those that extend linearly from the concave surface on the tooth root side to the tooth tip , (4) It is possible to set a device in which a plurality of patterns of transition zones are interposed between the concave surface on the tooth root side and the convex surface on the tooth tip side.
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Abstract
Description
L・・・・・噛み合いライン
Pe1・・・噛み合いラインにおける第1歯車の歯元側の端点
Pe2・・・噛み合いラインにおける第1歯車の歯先側の端点
Pm1・・・噛み合いラインにおけるピッチ点から第1歯車の歯元側の所定中間点
Pm2・・・噛み合いラインにおけるピッチ点から第1歯車の歯先側の所定中間点
Pp・・・・噛み合いラインにおけるピッチ点
α・・・・・圧力角
Claims (7)
- 第1歯車(G1)と、前記第1歯車(G1)よりも歯数が多い第2歯車(G2)とが、相互に噛み合う歯の噛み合いライン(L)を共有する歯車対において、
前記噛み合いライン(L)の少なくとも一部に、圧力角(α)が一定でない領域が含まれており、
前記噛み合いライン(L)におけるピッチ点(Pp)から前記第1歯車(G1)の歯元側の端点(Pe1)までの区間で圧力角(α)が広義単調増加となることを特徴とする歯車対。 - 前記噛み合いライン(L)におけるピッチ点(Pp)から前記第1歯車(G1)の歯先側の端点(Pe2)までの区間で圧力角(α)が広義単調増加となることを特徴とする、請求項1に記載の歯車対。
- 前記噛み合いライン(L)におけるピッチ点(Pp)から前記第1歯車(G1)の歯元側の所定中間点(Pm1)までの区間で圧力角(α)が一定であり、且つ該歯元側の所定中間点(Pm1)から前記第1歯車(G1)の歯元側の端点(Pe1)までの区間で圧力角(α)が増加となることを特徴とする、請求項1又は2に記載の歯車対。
- 前記噛み合いライン(L)におけるピッチ点(Pp)から前記第1歯車(G1)の歯先側の所定中間点(Pm2)までの区間で圧力角(α)が一定であり、且つ該歯先側の所定中間点(Pm2)から前記第1歯車(G1)の歯先側の端点(Pe2)までの区間で圧力角(α)が増加となることを特徴とする、請求項1~3の何れか1項に記載の歯車対。
- 前記噛み合いライン(L)の全域で、歯形曲線の曲率を噛み合いライン長さによって微分した値が常に変動することを特徴とする、請求項1~4の何れか1項に記載の歯車対。
- 前記噛み合いライン(L)の全域で圧力角(α)が0度よりも大きいことを特徴とする、請求項1~5の何れか1項に記載の歯車対。
- 前記第1,第2歯車(G1,G2)は、鍛造成形された傘歯車であることを特徴とする、請求項1~6の何れか1項に記載の歯車対。
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DE112021006814.8T DE112021006814T5 (de) | 2021-01-15 | 2021-01-15 | Zahnradpaar |
PCT/JP2021/001226 WO2022153479A1 (ja) | 2021-01-15 | 2021-01-15 | 歯車対 |
US18/271,323 US20240167556A1 (en) | 2021-01-15 | 2021-01-15 | Gear pair |
JP2022574986A JP7477655B2 (ja) | 2021-01-15 | 2021-01-15 | 歯車対 |
CN202180090482.2A CN116710684A (zh) | 2021-01-15 | 2021-01-15 | 齿轮副 |
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PCT/JP2021/001226 WO2022153479A1 (ja) | 2021-01-15 | 2021-01-15 | 歯車対 |
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JP (1) | JP7477655B2 (ja) |
CN (1) | CN116710684A (ja) |
DE (1) | DE112021006814T5 (ja) |
WO (1) | WO2022153479A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5182851A (ja) * | 1974-12-04 | 1976-07-20 | Esu Ruuberooru Uiriamu | Kotorukuhaguruma |
JPH08219257A (ja) * | 1995-02-14 | 1996-08-27 | Mitsubishi Motors Corp | 歯車並びに歯切り工具 |
JP2017119462A (ja) * | 2015-12-28 | 2017-07-06 | 株式会社シマノ | 歯車およびこれを備える自転車用変速機構 |
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US6101892A (en) | 1997-04-10 | 2000-08-15 | Genesis Partners, L.P. | Gear form constructions |
JP5458063B2 (ja) | 2011-07-12 | 2014-04-02 | 株式会社豊田中央研究所 | 歯車および歯車の歯形設計方法 |
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2021
- 2021-01-15 DE DE112021006814.8T patent/DE112021006814T5/de active Pending
- 2021-01-15 CN CN202180090482.2A patent/CN116710684A/zh active Pending
- 2021-01-15 US US18/271,323 patent/US20240167556A1/en active Pending
- 2021-01-15 JP JP2022574986A patent/JP7477655B2/ja active Active
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5182851A (ja) * | 1974-12-04 | 1976-07-20 | Esu Ruuberooru Uiriamu | Kotorukuhaguruma |
JPH08219257A (ja) * | 1995-02-14 | 1996-08-27 | Mitsubishi Motors Corp | 歯車並びに歯切り工具 |
JP2017119462A (ja) * | 2015-12-28 | 2017-07-06 | 株式会社シマノ | 歯車およびこれを備える自転車用変速機構 |
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CN116710684A (zh) | 2023-09-05 |
US20240167556A1 (en) | 2024-05-23 |
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