TWI605213B - Gear transmission and crankshaft structure used therefor - Google Patents
Gear transmission and crankshaft structure used therefor Download PDFInfo
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- TWI605213B TWI605213B TW102133029A TW102133029A TWI605213B TW I605213 B TWI605213 B TW I605213B TW 102133029 A TW102133029 A TW 102133029A TW 102133029 A TW102133029 A TW 102133029A TW I605213 B TWI605213 B TW I605213B
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- cylindrical roller
- crankshaft
- roller bearing
- gear
- pair
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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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/323—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising eccentric crankshafts driving or driven by a gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Description
本申請案主張基於2012年9月13日申請之日本專利申請案第2012-202000號之優先權。上述申請案之全部內容係藉由參照而引用於本說明書中。本說明書係關於一種齒輪傳動裝置及使用於其之曲柄軸構造體。 The present application claims priority based on Japanese Patent Application No. 2012-202000, filed on Sep. 13, 2012. The entire contents of the above application are incorporated herein by reference. This specification relates to a gear transmission and a crankshaft structure used therefor.
已知有外齒輪一面與內齒輪嚙合一面相對地進行偏心旋轉之齒輪傳動裝置。於日本專利特開2008-202764號公報中揭示有一種使設置於曲柄軸之偏心體卡合於設置在外齒輪之貫通孔而使外齒輪進行偏心旋轉之齒輪傳動裝置。於以下之說明中，將日本專利特開2008-202764號公報稱為專利文獻1。偏心體係設置於曲柄軸之軸向之中間。於專利文獻1之齒輪傳動裝置中，曲柄軸之軸部係經由第1個圓柱滾子軸承(以下，稱為第1圓柱滾子軸承)而支持於支持構件。於設置於上述外齒輪之貫通孔與偏心體之間介置有第2個圓柱滾子軸承(以下，稱為第2圓柱滾子軸承)。又，於第1圓柱滾子軸承與偏心體之間配置有墊圈。墊圈亦可配置於第1圓柱滾子軸承與第2圓柱滾子軸承之間。墊圈係配置成與第1圓柱滾子軸承之軸承中心軸同軸。於專利文獻1中，藉由使墊圈與支持構件接觸，而限制曲柄軸於軸向上移動。再者，墊圈亦限制第2圓柱滾子軸承於軸向上移動。 A gear transmission in which an outer gear is engaged with an inner gear while being eccentrically rotated is known. Japanese Patent Publication No. 2008-202764 discloses a gear transmission in which an eccentric body provided on a crankshaft is engaged with a through hole provided in an external gear to eccentrically rotate the external gear. In the following description, Japanese Patent Laid-Open Publication No. 2008-202764 is referred to as Patent Document 1. The eccentric system is disposed in the middle of the axial direction of the crankshaft. In the gear transmission of Patent Document 1, the shaft portion of the crankshaft is supported by the support member via the first cylindrical roller bearing (hereinafter referred to as a first cylindrical roller bearing). A second cylindrical roller bearing (hereinafter referred to as a second cylindrical roller bearing) is interposed between the through hole provided in the external gear and the eccentric body. Further, a gasket is disposed between the first cylindrical roller bearing and the eccentric body. The gasket may also be disposed between the first cylindrical roller bearing and the second cylindrical roller bearing. The gasket is configured to be coaxial with the bearing central axis of the first cylindrical roller bearing. In Patent Document 1, the crankshaft is restricted from moving in the axial direction by bringing the washer into contact with the support member. Furthermore, the washer also limits the movement of the second cylindrical roller bearing in the axial direction.
於專利文獻1之齒輪傳動裝置之情形時，為了使墊圈與支持構件 接觸，必須使墊圈之外徑較第1圓柱滾子軸承之外徑大。進而，墊圈之中心自第2圓柱滾子軸承之中心偏移。為了確實地限制第2圓柱滾子軸承於軸向上移動，必須使墊圈之外徑進一步增大偏移之量。其結果，於自軸向觀察曲柄軸時，墊圈之外周之一部分位於較第2圓柱滾子軸承之外周之一部分更靠外側。即，於自軸向觀察曲柄軸時，墊圈之外周之一部分位於較外齒輪之貫通孔之一部分更靠外側。 In the case of the gear transmission of Patent Document 1, in order to make the gasket and the supporting member For contact, the outer diameter of the washer must be larger than the outer diameter of the first cylindrical roller bearing. Further, the center of the washer is offset from the center of the second cylindrical roller bearing. In order to reliably restrict the axial movement of the second cylindrical roller bearing, it is necessary to further increase the outer diameter of the gasket by an amount of offset. As a result, when the crankshaft is viewed from the axial direction, one of the outer circumferences of the washer is located outside the outer circumference of the second cylindrical roller bearing. That is, when the crankshaft is viewed from the axial direction, one of the outer circumferences of the washer is located outside the one of the through holes of the outer gear.
於製造專利文獻1之齒輪傳動裝置之情形時，根據如上所述之特徵，必須在將墊圈與第1圓柱滾子軸承安裝於曲柄軸之前將外齒輪安裝於曲柄軸(偏心體)。即，必須在將外齒輪安裝於偏心體之後將墊圈與第1圓柱滾子軸承安裝於曲柄軸之軸部。因此，專利文獻1之齒輪傳動裝置之組裝作業繁雜。本說明書提供一種組裝作業之效率優異之齒輪傳動裝置及使用於該齒輪傳動裝置之曲柄軸構造體。 In the case of manufacturing the gear transmission of Patent Document 1, according to the above feature, it is necessary to attach the external gear to the crankshaft (eccentric body) before attaching the washer and the first cylindrical roller bearing to the crankshaft. That is, it is necessary to attach the washer and the first cylindrical roller bearing to the shaft portion of the crankshaft after the external gear is attached to the eccentric body. Therefore, the assembly work of the gear transmission of Patent Document 1 is complicated. The present specification provides a gear transmission excellent in assembly work and a crankshaft structure for use in the gear transmission.
本說明書揭示之齒輪傳動裝置包括內齒輪、外齒輪、曲柄軸、及支持曲柄軸之支持構件。外齒輪一面與內齒輪嚙合一面相對地進行偏心旋轉。曲柄軸包含偏心體，該偏心體卡合在形成於內齒輪或外齒輪之一者之貫通孔。曲柄軸使偏心體所卡合之齒輪(內齒輪或外齒輪)進行偏心旋轉。支持構件係於較偏心體更靠曲柄軸之軸向之外側被雙側支持曲柄軸。該齒輪傳動裝置進而包括一對第1圓柱滾子軸承、第2圓柱滾子軸承、第1環狀構件及第2環狀構件。一對第1圓柱滾子軸承介於曲柄軸之軸部與支持構件之間。第2圓柱滾子軸承係於曲柄軸之軸向上配置於一對第1圓柱滾子軸承之間，並且介於上述貫通孔(形成於內齒輪或外齒輪之一者之貫通孔)與偏心體之間。又，第2圓柱滾子軸承之外周位於較第1圓柱滾子軸承之外周更靠外側。第1環狀構件係於曲柄軸之軸向上在較一對第1圓柱滾子軸承更靠外側固定於曲柄軸，並且外徑小於一對第1圓柱滾子軸承之外徑。第2環狀構件係於曲柄軸之軸向上在較第1環狀構件更靠外側固定於支持構件，並且內徑 小於第1圓柱滾子軸承之外徑。於以下之說明中，主要對外齒輪進行偏心旋轉之類型之齒輪傳動裝置進行說明。然而，本說明書揭示之技術亦可應用於內齒輪進行偏心旋轉之類型之齒輪傳動裝置。 The gear transmission disclosed in the present specification includes an internal gear, an external gear, a crankshaft, and a support member that supports the crankshaft. The outer gear is eccentrically rotated while being engaged with the inner gear. The crank shaft includes an eccentric body that is engaged with a through hole formed in one of the internal gear or the external gear. The crankshaft rotates the gear (internal or external gear) to which the eccentric body is engaged. The support member is supported on both sides of the crankshaft by the eccentric body on the outer side of the axial direction of the crankshaft. The gear transmission further includes a pair of first cylindrical roller bearings, a second cylindrical roller bearing, a first annular member, and a second annular member. A pair of first cylindrical roller bearings are interposed between the shaft portion of the crankshaft and the support member. The second cylindrical roller bearing is disposed between the pair of first cylindrical roller bearings in the axial direction of the crankshaft, and is interposed between the through hole (through hole formed in one of the internal gear or the external gear) and the eccentric body between. Further, the outer circumference of the second cylindrical roller bearing is located outside the outer circumference of the first cylindrical roller bearing. The first annular member is fixed to the crankshaft on the outer side of the pair of first cylindrical roller bearings in the axial direction of the crankshaft, and has an outer diameter smaller than the outer diameter of the pair of first cylindrical roller bearings. The second annular member is fixed to the support member on the outer side of the first annular member in the axial direction of the crankshaft, and has an inner diameter Less than the outer diameter of the first cylindrical roller bearing. In the following description, a gear transmission of a type in which an external gear is eccentrically rotated will be described. However, the techniques disclosed in this specification can also be applied to gear transmissions of the type in which the internal gear is eccentrically rotated.
於上述齒輪傳動裝置之情形時，第1環狀構件之外徑小於第1圓柱滾子軸承之外徑。又，於自軸向觀察曲柄軸時，第2圓柱滾子軸承之外周位於較第1圓柱滾子軸承之外周更靠外側。即，外齒輪之貫通孔之直徑大於第1圓柱滾子軸承之外徑。因此，於組裝齒輪傳動裝置時，可於已將第1環狀構件、第1圓柱滾子軸承及第2圓柱滾子軸承安裝於曲柄軸之狀態下將外齒輪安裝於偏心體。換言之，無需於將外齒輪安裝於曲柄軸之後將第1圓柱滾子軸承等安裝於曲柄軸。因此，本說明書中揭示之齒輪傳動裝置與先前之齒輪傳動裝置相比，可容易地進行組裝作業。 In the case of the above-described gear transmission, the outer diameter of the first annular member is smaller than the outer diameter of the first cylindrical roller bearing. Further, when the crankshaft is viewed from the axial direction, the outer circumference of the second cylindrical roller bearing is located outside the outer circumference of the first cylindrical roller bearing. That is, the diameter of the through hole of the external gear is larger than the outer diameter of the first cylindrical roller bearing. Therefore, when the gear transmission is assembled, the external gear can be attached to the eccentric body in a state where the first annular member, the first cylindrical roller bearing, and the second cylindrical roller bearing are attached to the crankshaft. In other words, it is not necessary to attach the first cylindrical roller bearing or the like to the crankshaft after the external gear is attached to the crankshaft. Therefore, the gear transmission disclosed in the present specification can be easily assembled as compared with the prior gear transmission.
本說明書揭示之曲柄軸構造體包括曲柄軸、一對第1圓柱滾子軸承、第2圓柱滾子軸承及第1環狀構件。曲柄軸於軸向之中間具備偏心體。一對第1圓柱滾子軸承係於曲柄軸之軸向上在較偏心體更靠外側安裝於曲柄軸之軸部分。第2圓柱滾子軸承係安裝於偏心體，且藉由一對第1圓柱滾子軸承限制沿軸向之移動。第2圓柱滾子軸承之外周位於較第1圓柱滾子軸承之外周更靠外側。第1環狀構件係於曲柄軸之軸向上在較一對第1圓柱滾子軸承更靠外側固定於曲柄軸。又，第1環狀構件限制一對第1圓柱滾子軸承沿軸向移動。第1環狀構件之外徑小於一對第1圓柱滾子軸承之外徑。 The crankshaft structure disclosed in the present specification includes a crankshaft, a pair of first cylindrical roller bearings, a second cylindrical roller bearing, and a first annular member. The crankshaft has an eccentric body in the middle of the axial direction. A pair of first cylindrical roller bearings are attached to the shaft portion of the crankshaft on the outer side of the eccentric body in the axial direction of the crankshaft. The second cylindrical roller bearing is attached to the eccentric body, and the axial movement is restricted by a pair of first cylindrical roller bearings. The outer circumference of the second cylindrical roller bearing is located outside the outer circumference of the first cylindrical roller bearing. The first annular member is fixed to the crankshaft on the outer side of the pair of first cylindrical roller bearings in the axial direction of the crankshaft. Further, the first annular member restricts the movement of the pair of first cylindrical roller bearings in the axial direction. The outer diameter of the first annular member is smaller than the outer diameter of the pair of first cylindrical roller bearings.
2‧‧‧殼體 2‧‧‧Shell
4‧‧‧角接觸球軸承 4‧‧‧Angle contact ball bearings
6‧‧‧油封 6‧‧‧ oil seal
10‧‧‧載體 10‧‧‧ Carrier
10a‧‧‧第1板 10a‧‧‧1st board
10b‧‧‧柱狀部 10b‧‧‧ Column
10c‧‧‧第2板 10c‧‧‧2nd board
10d‧‧‧端面 10d‧‧‧ end face
12X‧‧‧貫通孔 12X‧‧‧through hole
12Y‧‧‧貫通孔 12Y‧‧‧through hole
14‧‧‧貫通孔 14‧‧‧through holes
16X‧‧‧貫通孔 16X‧‧‧through hole
16Y‧‧‧貫通孔 16Y‧‧‧through hole
18‧‧‧貫通孔 18‧‧‧through holes
22‧‧‧貫通孔 22‧‧‧through holes
24X‧‧‧貫通孔 24X‧‧‧through hole
24Y‧‧‧貫通孔 24Y‧‧‧through hole
26‧‧‧曲柄軸 26‧‧‧ crankshaft
26a‧‧‧端部 26a‧‧‧End
28X‧‧‧偏心體 28X‧‧‧Eccentric body
28Y‧‧‧偏心體 28Y‧‧‧Eccentric body
30‧‧‧軸部 30‧‧‧Axis
32X‧‧‧第1圓柱滾子軸承 32X‧‧‧1st cylindrical roller bearing
32aX‧‧‧護圈 32aX‧‧‧ retaining ring
32bX‧‧‧滾子 32bX‧‧‧Roller
32Y‧‧‧第1圓柱滾子軸承 32Y‧‧‧1st cylindrical roller bearing
32aY‧‧‧護圈 32aY‧‧‧ retaining ring
32bY‧‧‧滾子 32bY‧‧‧Roller
34X‧‧‧第2圓柱滾子軸承 34X‧‧‧2nd cylindrical roller bearing
34aX‧‧‧護圈 34aX‧‧‧ retaining ring
34bX‧‧‧滾子 34bX‧‧‧roller
34Y‧‧‧第2圓柱滾子軸承 34Y‧‧‧2nd cylindrical roller bearing
34aY‧‧‧護圈 34aY‧‧‧ retaining ring
34bY‧‧‧滾子 34bY‧‧Roller
36X‧‧‧外齒輪 36X‧‧‧ external gear
36Y‧‧‧外齒輪 36Y‧‧‧External gear
38‧‧‧內齒針 38‧‧‧ internal needle
40‧‧‧內齒輪 40‧‧‧Internal gear
42‧‧‧栓槽 42‧‧‧Bolt
44‧‧‧軸線 44‧‧‧ axis
46‧‧‧貫通孔 46‧‧‧through holes
48‧‧‧軸線 48‧‧‧ axis
52‧‧‧貫通孔 52‧‧‧through holes
60X‧‧‧止動環 60X‧‧‧stop ring
60Y‧‧‧止動環 60Y‧‧‧stop ring
62X‧‧‧墊圈 62X‧‧‧ Washer
62Y‧‧‧墊圈 62Y‧‧‧ Washer
64X‧‧‧止動環 64X‧‧‧stop ring
64Y‧‧‧止動環 64Y‧‧‧stop ring
70‧‧‧止動環64之外徑 70‧‧‧ outer diameter of the stop ring 64
72‧‧‧第1圓柱滾子軸承32之外徑 72‧‧‧The outer diameter of the first cylindrical roller bearing 32
74‧‧‧止動環60之內徑 74‧‧‧The inner diameter of the stop ring 60
76‧‧‧第2圓柱滾子軸承34之外徑 76‧‧‧The outer diameter of the second cylindrical roller bearing 34
80‧‧‧曲柄軸構造體 80‧‧‧ crankshaft structure
100‧‧‧齒輪傳動裝置 100‧‧‧Gear transmission
200‧‧‧齒輪傳動裝置 200‧‧‧Gear transmission
264X‧‧‧止動環 264X‧‧‧stop ring
264Y‧‧‧止動環 264Y‧‧‧stop ring
280‧‧‧曲柄軸構造體 280‧‧‧ crankshaft structure
圖1表示第1實施例之齒輪傳動裝置之剖面圖。 Fig. 1 is a cross-sectional view showing the gear transmission of the first embodiment.
圖2表示由圖1之虛線II包圍之範圍之放大圖。 Fig. 2 is an enlarged view showing a range surrounded by a broken line II of Fig. 1.
圖3表示第1實施例之齒輪傳動裝置中所使用之曲柄軸構造體之剖面圖。 Fig. 3 is a cross-sectional view showing a crankshaft structure used in the gear transmission of the first embodiment.
圖4表示用以說明第1實施例之齒輪傳動裝置之製造步驟之圖。 Fig. 4 is a view for explaining the manufacturing steps of the gear transmission of the first embodiment.
圖5表示第2實施例之齒輪傳動裝置之剖面圖。 Fig. 5 is a cross-sectional view showing the gear transmission of the second embodiment.
以下，記載本說明書中揭示之實施例之若干個技術特徵。再者，以下記載之事項各自單獨具有技術上之有用性。 Hereinafter, several technical features of the embodiments disclosed in the present specification are described. Furthermore, the matters described below are each individually technically useful.
(特徵1)於曲柄軸之軸向上，第3環狀構件亦可配置於第1圓柱滾子軸承與第1環狀構件之間。於此情形時，第3環狀構件之外徑可大於第1環狀構件之外徑及第2環狀構件之內徑。若設為此種構造，則可不使第1環狀構件與第2環狀構件接觸而限制曲柄軸沿軸向移動。 (Feature 1) The third annular member may be disposed between the first cylindrical roller bearing and the first annular member in the axial direction of the crankshaft. In this case, the outer diameter of the third annular member may be larger than the outer diameter of the first annular member and the inner diameter of the second annular member. According to this configuration, the crankshaft can be restricted from moving in the axial direction without contacting the first annular member and the second annular member.
(特徵2)於曲柄軸之軸向上，曲柄軸之一端部亦可自支持構件之端面突出。可在將曲柄軸安裝於支持構件之後將輸入齒輪等安裝於曲柄軸。 (Feature 2) In the axial direction of the crankshaft, one end of the crankshaft may also protrude from the end surface of the support member. An input gear or the like may be attached to the crankshaft after the crankshaft is mounted to the support member.
參照圖1、2，對齒輪傳動裝置100進行說明。於以下之說明中，於對存在複數個之同一種零件共通之特徵進行說明之情形時，有時省略參照編號之字母。齒輪傳動裝置100係外齒輪36(36X、36Y)一面與內齒輪40嚙合一面進行偏心旋轉之類型之減速裝置。齒輪傳動裝置100係利用外齒輪36與內齒輪40之齒數差，使傳遞至曲柄軸26之轉矩增大(使旋轉減速)並自載體10輸出。換言之，利用外齒輪36與內齒輪40之齒數差，使載體10相對於殼體2旋轉。以下，對齒輪傳動裝置100進行詳細說明。 The gear transmission 100 will be described with reference to Figs. In the following description, in the case where a feature in which a plurality of the same components are common is described, the letters of the reference numerals may be omitted. The gear transmission 100 is a reduction gear of the type in which the external gear 36 (36X, 36Y) is eccentrically rotated while meshing with the internal gear 40. The gear transmission 100 utilizes the difference in the number of teeth between the external gear 36 and the internal gear 40 to increase the torque transmitted to the crankshaft 26 (decelerate the rotation) and output it from the carrier 10. In other words, the carrier 10 is rotated relative to the housing 2 by the difference in the number of teeth of the external gear 36 and the internal gear 40. Hereinafter, the gear transmission 100 will be described in detail.
如圖1所示，齒輪傳動裝置100包括內齒輪40、載體10、曲柄軸26及2個外齒輪36X、36Y。內齒輪40包含殼體2、及配置於殼體2之內周之複數個內齒針38。載體10係藉由一對角接觸球軸承4而與內齒輪40同軸地支持於殼體2。一對角接觸球軸承4限制載體10相對於殼體2 於軸向方向及徑向方向上移動。 As shown in FIG. 1, the gear transmission 100 includes an internal gear 40, a carrier 10, a crank axle 26, and two external gears 36X, 36Y. The internal gear 40 includes a housing 2 and a plurality of internal tooth pins 38 disposed on the inner circumference of the housing 2. The carrier 10 is supported by the housing 2 coaxially with the internal gear 40 by a pair of angular contact ball bearings 4. A pair of angular contact ball bearings 4 limit carrier 10 relative to housing 2 Move in the axial direction and the radial direction.
載體10包含第1板10a與第2板10c。於第1板10a與第2板10c之各者上形成有沿軸線48方向延伸之貫通孔22、46。柱狀部10b自第1板10a朝向第2板10c延伸，且柱狀部10b與第2板10c被固定。載體10之柱狀部10b通過外齒輪36之貫通孔12(12X、12Y)。於貫通孔12之內壁與柱狀部10b之間確保有間隙。再者，軸線48係載體10及內齒輪40之軸線。載體10支持曲柄軸26與外齒輪36。 The carrier 10 includes a first plate 10a and a second plate 10c. Through holes 22 and 46 extending in the direction of the axis 48 are formed in each of the first plate 10a and the second plate 10c. The columnar portion 10b extends from the first plate 10a toward the second plate 10c, and the columnar portion 10b and the second plate 10c are fixed. The columnar portion 10b of the carrier 10 passes through the through holes 12 (12X, 12Y) of the external gear 36. A gap is ensured between the inner wall of the through hole 12 and the columnar portion 10b. Furthermore, the axis 48 is the axis of the carrier 10 and the internal gear 40. The carrier 10 supports the crankshaft 26 and the external gear 36.
曲柄軸26之軸線44與軸線48平行。即，曲柄軸26係於自軸線48偏移之位置上與軸線48平行地延伸。曲柄軸26包含軸部30與2個偏心體28(28X、28Y)。曲柄軸26係藉由一對第1圓柱滾子軸承32(32X、32Y)而被支持於載體10。各個第1圓柱滾子軸承32介於曲柄軸26之軸部30與載體10之間。更詳細而言，軸部30係經由第1圓柱滾子軸承32而嵌入至載體10之貫通孔22、46。再者，一對第1圓柱滾子軸承32係於軸線44方向上配置於較偏心體28更靠外側。換言之，於軸線44方向上，偏心體28係配置於一對第1圓柱滾子軸承32之間。 The axis 44 of the crankshaft 26 is parallel to the axis 48. That is, the crankshaft 26 extends parallel to the axis 48 at a position offset from the axis 48. The crankshaft 26 includes a shaft portion 30 and two eccentric bodies 28 (28X, 28Y). The crankshaft 26 is supported by the carrier 10 by a pair of first cylindrical roller bearings 32 (32X, 32Y). Each of the first cylindrical roller bearings 32 is interposed between the shaft portion 30 of the crankshaft 26 and the carrier 10. More specifically, the shaft portion 30 is fitted into the through holes 22 and 46 of the carrier 10 via the first cylindrical roller bearing 32. Further, the pair of first cylindrical roller bearings 32 are disposed on the outer side of the eccentric body 28 in the direction of the axis 44. In other words, the eccentric body 28 is disposed between the pair of first cylindrical roller bearings 32 in the direction of the axis 44.
曲柄軸26係被雙側支持於載體10。換言之，載體10係於軸線44方向上在較偏心體28更靠外側支持曲柄軸26之兩端。曲柄軸26之一端部26a自載體10(第2板10c)之端面10d突出。於端部26a之周面形成有栓槽42。可於栓槽42中安裝傳遞馬達(省略圖示)之轉矩之輸入齒輪(省略圖示)。關於曲柄軸26之詳細情況將於下文進行敍述。 The crank axle 26 is supported on both sides of the carrier 10. In other words, the carrier 10 supports both ends of the crankshaft 26 on the outer side of the eccentric body 28 in the direction of the axis 44. One end portion 26a of the crank shaft 26 protrudes from the end surface 10d of the carrier 10 (second plate 10c). A pin groove 42 is formed on the circumferential surface of the end portion 26a. An input gear (not shown) that transmits torque of a motor (not shown) can be attached to the pin groove 42. Details regarding the crankshaft 26 will be described below.
偏心體28經由第2圓柱滾子軸承34(34X、34Y)而卡合於外齒輪36。更具體而言，偏心體28X係經由第2圓柱滾子軸承34X而卡合於外齒輪36X之貫通孔24X。偏心體28Y係經由第2圓柱滾子軸承34Y而卡合於外齒輪36Y之貫通孔24Y。第2圓柱滾子軸承34係於軸線44方向上配置於一對第1圓柱滾子軸承32(32X、32Y)之間。一對第1圓柱滾子軸承32限制第2圓柱滾子軸承34於軸向上移動。外齒輪36係經由曲柄軸 26而被支持於載體10。 The eccentric body 28 is engaged with the external gear 36 via the second cylindrical roller bearing 34 (34X, 34Y). More specifically, the eccentric body 28X is engaged with the through hole 24X of the external gear 36X via the second cylindrical roller bearing 34X. The eccentric body 28Y is engaged with the through hole 24Y of the external gear 36Y via the second cylindrical roller bearing 34Y. The second cylindrical roller bearing 34 is disposed between the pair of first cylindrical roller bearings 32 (32X, 32Y) in the direction of the axis 44. The pair of first cylindrical roller bearings 32 restrict the second cylindrical roller bearing 34 from moving in the axial direction. External gear 36 is via crankshaft 26 is supported by the carrier 10.
對齒輪傳動裝置100之動作簡單地進行說明。若未圖示之馬達之轉矩傳遞至曲柄軸26，則偏心體28相對於軸線44進行偏心旋轉。外齒輪36伴隨著偏心體28之偏心旋轉，一面與內齒輪40嚙合一面進行偏心旋轉。外齒輪36之齒數與內齒輪40之齒數(內齒針38之數量)不同。如上所述，外齒輪36係支持於載體10，內齒輪40係形成於殼體2之內周面。因此，若外齒輪36進行偏心旋轉，則載體10根據外齒輪36與內齒輪40之齒數差相對於殼體2進行旋轉。 The operation of the gear transmission 100 will be briefly described. When the torque of the motor (not shown) is transmitted to the crankshaft 26, the eccentric body 28 is eccentrically rotated with respect to the axis 44. The outer gear 36 rotates eccentrically with the eccentric body 28, and eccentrically rotates while meshing with the internal gear 40. The number of teeth of the outer gear 36 is different from the number of teeth of the inner gear 40 (the number of the inner teeth 38). As described above, the external gear 36 is supported by the carrier 10, and the internal gear 40 is formed on the inner circumferential surface of the casing 2. Therefore, when the external gear 36 rotates eccentrically, the carrier 10 rotates relative to the casing 2 in accordance with the difference in the number of teeth between the external gear 36 and the internal gear 40.
參照圖2，對曲柄軸26及曲柄軸26周圍之零件進行說明。如上所述，曲柄軸26係經由第1圓柱滾子軸承32而支持於載體10。第1圓柱滾子軸承32X包含環狀之護圈32aX與複數個滾子32bX。第1圓柱滾子軸承32Y包含環狀之護圈32aY與複數個滾子32bY。護圈32a保持相鄰之滾子32b彼此之間隔。 The components around the crankshaft 26 and the crankshaft 26 will be described with reference to Fig. 2 . As described above, the crankshaft 26 is supported by the carrier 10 via the first cylindrical roller bearing 32. The first cylindrical roller bearing 32X includes an annular retainer 32aX and a plurality of rollers 32bX. The first cylindrical roller bearing 32Y includes an annular retainer 32aY and a plurality of rollers 32bY. The retainer 32a keeps the adjacent rollers 32b spaced from each other.
偏心體28係經由第2圓柱滾子軸承34而嵌入至外齒輪36之貫通孔24。第2圓柱滾子軸承34X包含環狀之護圈34aX與複數個滾子34bX。第2圓柱滾子軸承34Y包含環狀之護圈34aY與複數個滾子34bY。護圈34a保持相鄰之滾子34b彼此之間隔。 The eccentric body 28 is fitted into the through hole 24 of the external gear 36 via the second cylindrical roller bearing 34 . The second cylindrical roller bearing 34X includes an annular retainer 34aX and a plurality of rollers 34bX. The second cylindrical roller bearing 34Y includes an annular retainer 34aY and a plurality of rollers 34bY. The retainer 34a keeps the adjacent rollers 34b spaced from one another.
於曲柄軸26之兩端固定有止動環64(64X、64Y)。止動環64係於軸線44(參照圖1)方向上配置於較第1圓柱滾子軸承32更靠外側。換言之，於軸線44方向上，第1圓柱滾子軸承32X與32Y係配置於止動環64X與64Y之間。止動環64相當於第1環狀構件。止動環64之外徑70小於第1圓柱滾子軸承32之外徑72。 A stopper ring 64 (64X, 64Y) is fixed to both ends of the crank shaft 26. The stopper ring 64 is disposed outside the first cylindrical roller bearing 32 in the direction of the axis 44 (see FIG. 1). In other words, in the direction of the axis 44, the first cylindrical roller bearings 32X and 32Y are disposed between the stopper rings 64X and 64Y. The stopper ring 64 corresponds to the first annular member. The outer diameter 70 of the stop ring 64 is smaller than the outer diameter 72 of the first cylindrical roller bearing 32.
止動環60X嵌入至形成於貫通孔22之壁面之槽。止動環60Y嵌入至形成於貫通孔46之壁面之槽。止動環60X、60Y係於軸線44方向上配置於較第1圓柱滾子軸承32更靠外側。即，於軸線44方向上，第1圓柱滾子軸承32及第2圓柱滾子軸承34係配置於止動環60X與60Y之間。 止動環60相當於第2環狀構件。止動環60之內徑74小於第1圓柱滾子軸承32之外徑72。 The stopper ring 60X is fitted into a groove formed in the wall surface of the through hole 22. The stopper ring 60Y is fitted into a groove formed in the wall surface of the through hole 46. The stopper rings 60X and 60Y are disposed outside the first cylindrical roller bearing 32 in the direction of the axis 44. That is, in the direction of the axis 44, the first cylindrical roller bearing 32 and the second cylindrical roller bearing 34 are disposed between the stopper rings 60X and 60Y. The snap ring 60 corresponds to the second annular member. The inner diameter 74 of the snap ring 60 is smaller than the outer diameter 72 of the first cylindrical roller bearing 32.
於止動環64與第1圓柱滾子軸承32之間配置有墊圈62(62X、62Y)。即，墊圈62係於軸線44方向上配置於較第1圓柱滾子軸承32更靠外側。第1圓柱滾子軸承32係配置於墊圈62X與62Y之間。墊圈62相當於第3環狀構件。 A washer 62 (62X, 62Y) is disposed between the stopper ring 64 and the first cylindrical roller bearing 32. That is, the washer 62 is disposed outside the first cylindrical roller bearing 32 in the direction of the axis 44. The first cylindrical roller bearing 32 is disposed between the washers 62X and 62Y. The washer 62 corresponds to the third annular member.
墊圈62係配置成與第1圓柱滾子軸承32之軸承中心軸同軸(與圖1之軸線44同軸)。再者，墊圈62並未固定於曲柄軸26及載體10中之任一者。因此，墊圈62可相對於曲柄軸26及載體10之兩者相對地旋轉。再者，墊圈62亦可配置於止動環60與第1圓柱滾子軸承32之間。如圖2所示，墊圈62之外徑大於止動環64之外徑70及止動環60之內徑74。 The washer 62 is disposed coaxially with the bearing central axis of the first cylindrical roller bearing 32 (coaxial with the axis 44 of FIG. 1). Furthermore, the washer 62 is not fixed to either of the crankshaft 26 and the carrier 10. Thus, the washer 62 is relatively rotatable relative to both the crank axle 26 and the carrier 10. Further, the washer 62 may be disposed between the stop ring 60 and the first cylindrical roller bearing 32. As shown in FIG. 2, the outer diameter of the washer 62 is greater than the outer diameter 70 of the stop ring 64 and the inner diameter 74 of the stop ring 60.
護圈32aX之軸線44方向之一端面與墊圈62X接觸。護圈32aX之另一端面與護圈34aX之軸線44方向之一端面接觸。護圈34aX之另一端面與護圈34aY之軸線44方向之一端面接觸。護圈34aY之另一端面與護圈32aY之軸線44方向之一端面接觸。護圈32aY之另一端面與墊圈62Y接觸。 One end face of the retainer 32aX in the direction of the axis 44 is in contact with the washer 62X. The other end face of the retainer 32aX is in contact with one end face of the retainer 34aX in the direction of the axis 44. The other end surface of the retainer 34aX is in contact with one end surface of the retainer 34aY in the direction of the axis 44. The other end surface of the retainer 34aY is in contact with one end surface of the retainer 32aY in the direction of the axis 44. The other end face of the retainer 32aY is in contact with the washer 62Y.
止動環64係於軸線44方向上在較墊圈62更靠外側固定於曲柄軸26。藉由止動環64限制墊圈62、第1圓柱滾子軸承32及第2圓柱滾子軸承34相對於曲柄軸26於軸線44方向上移動。即，藉由止動環64使曲柄軸26、第1圓柱滾子軸承32及第2圓柱滾子軸承34一體化。又，止動環60X、60Y限制墊圈62、第1圓柱滾子軸承32及第2圓柱滾子軸承34沿軸線44方向移動。即，止動環60X、60Y限制曲柄軸26相對於載體10於軸向方向(軸線44方向)上移動。 The stop ring 64 is fixed to the crankshaft 26 on the outer side of the washer 62 in the direction of the axis 44. The washer 62, the first cylindrical roller bearing 32, and the second cylindrical roller bearing 34 are restrained from moving relative to the crankshaft 26 in the direction of the axis 44 by the snap ring 64. That is, the crankshaft 26, the first cylindrical roller bearing 32, and the second cylindrical roller bearing 34 are integrated by the stopper ring 64. Further, the stopper rings 60X and 60Y restrict the movement of the washer 62, the first cylindrical roller bearing 32, and the second cylindrical roller bearing 34 in the direction of the axis 44. That is, the stopper rings 60X, 60Y restrict the movement of the crank shaft 26 with respect to the carrier 10 in the axial direction (the direction of the axis 44).
第2圓柱滾子軸承34之外徑76大於第1圓柱滾子軸承32之外徑72。即，貫通孔24之直徑大於第1圓柱滾子軸承32之外徑72。又，第2圓柱滾子軸承34之外周位於較第1圓柱滾子軸承32之外周更靠外側。 更具體而言，於自軸線44方向觀察時，第1圓柱滾子軸承32之外周位於較第2圓柱滾子軸承34之外周更靠內側。因此，可於已將第1圓柱滾子軸承32安裝於曲柄軸26之狀態下經由第2圓柱滾子軸承34將偏心體28嵌入至貫通孔24。 The outer diameter 76 of the second cylindrical roller bearing 34 is larger than the outer diameter 72 of the first cylindrical roller bearing 32. That is, the diameter of the through hole 24 is larger than the outer diameter 72 of the first cylindrical roller bearing 32. Further, the outer circumference of the second cylindrical roller bearing 34 is located outside the outer circumference of the first cylindrical roller bearing 32. More specifically, when viewed from the direction of the axis 44, the outer circumference of the first cylindrical roller bearing 32 is located further inside than the outer circumference of the second cylindrical roller bearing 34. Therefore, the eccentric body 28 can be fitted into the through hole 24 via the second cylindrical roller bearing 34 while the first cylindrical roller bearing 32 has been attached to the crankshaft 26 .
參照圖3、4，對齒輪傳動裝置100之製造步驟之一部分進行說明。首先，如圖3所示，將止動環64、墊圈62、第1圓柱滾子軸承32及第2圓柱滾子軸承34安裝於曲柄軸26。如上所述，藉由止動環64限制墊圈62、第1圓柱滾子軸承32及第2圓柱滾子軸承34相對於曲柄軸26沿軸線44方向移動。藉由止動環64使曲柄軸26、墊圈62、第1圓柱滾子軸承32及第2圓柱滾子軸承34一體化，而形成曲柄軸構造體80。 One of the manufacturing steps of the gear transmission 100 will be described with reference to Figs. First, as shown in FIG. 3, the stopper ring 64, the washer 62, the first cylindrical roller bearing 32, and the second cylindrical roller bearing 34 are attached to the crankshaft 26. As described above, the washer 62, the first cylindrical roller bearing 32, and the second cylindrical roller bearing 34 are restricted from moving relative to the crankshaft 26 in the direction of the axis 44 by the snap ring 64. The crankshaft 26, the washer 62, the first cylindrical roller bearing 32, and the second cylindrical roller bearing 34 are integrated by the stopper ring 64 to form the crankshaft structure 80.
繼而，如圖4所示，將曲柄軸構造體80嵌入至外齒輪36之貫通孔24。更詳細而言，使第1圓柱滾子軸承32通過貫通孔24，經由第2圓柱滾子軸承34將偏心體28嵌入至貫通孔24。其後，將曲柄軸26之軸部30經由第1圓柱滾子軸承32嵌入至載體10之貫通孔22、46(亦參照圖1)。 Then, as shown in FIG. 4, the crankshaft structure 80 is fitted into the through hole 24 of the external gear 36. More specifically, the first cylindrical roller bearing 32 passes through the through hole 24 , and the eccentric body 28 is fitted into the through hole 24 via the second cylindrical roller bearing 34 . Thereafter, the shaft portion 30 of the crankshaft 26 is fitted into the through holes 22 and 46 of the carrier 10 via the first cylindrical roller bearing 32 (see also FIG. 1).
對齒輪傳動裝置100之優點進行說明。如上所述，第1圓柱滾子軸承32之外徑72小於貫通孔24之直徑76(第2圓柱滾子軸承34之外徑)(參照圖2)。因此，可預先完成曲柄軸構造體80後，於曲柄軸26安裝外齒輪36。換言之，無需於組裝曲柄軸26與外齒輪36之後再將軸承安裝於曲柄軸26。齒輪傳動裝置100與先前之齒輪傳動裝置相比，可簡化製造步驟。 The advantages of the gear transmission 100 will be described. As described above, the outer diameter 72 of the first cylindrical roller bearing 32 is smaller than the diameter 76 of the through hole 24 (the outer diameter of the second cylindrical roller bearing 34) (see Fig. 2). Therefore, after the crankshaft structure 80 is completed in advance, the external gear 36 is attached to the crankshaft 26. In other words, it is not necessary to mount the bearing to the crankshaft 26 after assembling the crankshaft 26 and the external gear 36. Gearing 100 simplifies the manufacturing steps as compared to previous gearing.
對齒輪傳動裝置100之其他優點進行說明。墊圈62介於止動環60與第1圓柱滾子軸承32之間。墊圈62之外徑大於止動環60之內徑74。止動環60與第1圓柱滾子軸承32不直接接觸。又，墊圈62可相對於止動環60與第1圓柱滾子軸承32之兩者相對地旋轉。藉由使用墊圈62，可抑制第1圓柱滾子軸承32(護圈32a)與止動環60磨損。又，墊圈62亦介於止動環64與第1圓柱滾子軸承32之間。藉由使用墊圈62，亦可抑 制第1圓柱滾子軸承32(護圈32a)與止動環64磨損。再者，由於墊圈62之外徑大於止動環64之外徑70，故可不使止動環64與止動環60接觸而將曲柄軸26支持於載體10。 Other advantages of the gear transmission 100 will be described. The washer 62 is interposed between the stop ring 60 and the first cylindrical roller bearing 32. The outer diameter of the washer 62 is greater than the inner diameter 74 of the stop ring 60. The snap ring 60 is not in direct contact with the first cylindrical roller bearing 32. Further, the washer 62 is rotatable relative to both the stop ring 60 and the first cylindrical roller bearing 32. By using the washer 62, the wear of the first cylindrical roller bearing 32 (the retainer 32a) and the retaining ring 60 can be suppressed. Further, the washer 62 is also interposed between the stop ring 64 and the first cylindrical roller bearing 32. By using the gasket 62, it can also be suppressed The first cylindrical roller bearing 32 (the retainer 32a) and the retaining ring 64 are worn. Moreover, since the outer diameter of the washer 62 is larger than the outer diameter 70 of the retaining ring 64, the crankshaft 26 can be supported by the carrier 10 without contacting the retaining ring 64 with the retaining ring 60.
如圖1所示，於第1板10a之中央形成有沿軸線48方向延伸之貫通孔14。於外齒輪36(36X、36Y)之中央形成有貫通孔16(16X、16Y)。於第2板10c之中央形成有沿軸線48方向延伸之貫通孔52。藉由貫通孔14、16及52而形成有於齒輪傳動裝置100之中央沿軸線44方向延伸之貫通孔18。可使纜線、配線等通過貫通孔18內。 As shown in FIG. 1, a through hole 14 extending in the direction of the axis 48 is formed in the center of the first plate 10a. Through holes 16 (16X, 16Y) are formed in the center of the external gear 36 (36X, 36Y). A through hole 52 extending in the direction of the axis 48 is formed in the center of the second plate 10c. A through hole 18 extending in the center of the gear transmission 100 in the direction of the axis 44 is formed by the through holes 14, 16, and 52. Cables, wiring, and the like can be passed through the through holes 18.
於載體10(第1板10a)與殼體2之間配置有油封6。藉由油封6，可防止齒輪傳動裝置100內之潤滑劑等洩漏至齒輪傳動裝置100之外部。再者，亦可視需要於貫通孔14、16及52內配置筒狀之構件。可防止齒輪傳動裝置100內之潤滑劑等洩漏至貫通孔18內。 An oil seal 6 is disposed between the carrier 10 (the first plate 10a) and the casing 2. By the oil seal 6, the lubricant or the like in the gear transmission 100 can be prevented from leaking to the outside of the gear transmission 100. Further, a tubular member may be disposed in the through holes 14, 16, and 52 as needed. It is possible to prevent the lubricant or the like in the gear transmission 100 from leaking into the through hole 18.
如上所述，曲柄軸26之端部26a自載體10(第2板10c)之端面10d突出。又，於端部26a之周面形成有栓槽42。因此，可在使曲柄軸26支持於載體10之後，於曲柄軸26安裝輸入齒輪(省略圖示)。換言之，可在已自曲柄軸26卸下輸入齒輪之狀態下，將曲柄軸26(曲柄軸構造體80)嵌入至外齒輪36之貫通孔24。因此，可將直徑大於貫通孔24之輸入齒輪安裝於曲柄軸26。又，由於可在曲柄軸26被支持於載體10之狀態下將輸入齒輪安裝於曲柄軸26，故作業性良好。 As described above, the end portion 26a of the crank shaft 26 protrudes from the end surface 10d of the carrier 10 (second plate 10c). Further, a bolt groove 42 is formed on the circumferential surface of the end portion 26a. Therefore, after the crankshaft 26 is supported by the carrier 10, an input gear (not shown) can be attached to the crankshaft 26. In other words, the crankshaft 26 (the crankshaft structure 80) can be fitted into the through hole 24 of the external gear 36 in a state where the input gear has been removed from the crankshaft 26. Therefore, an input gear having a diameter larger than the through hole 24 can be attached to the crank shaft 26. Moreover, since the input gear can be attached to the crankshaft 26 while the crankshaft 26 is supported by the carrier 10, the workability is good.
參照圖5對第2實施例之齒輪傳動裝置200進行說明。齒輪傳動裝置200係曲柄軸構造體280之形狀與第1實施例之齒輪傳動裝置100不同。關於齒輪傳動裝置200，對於實質上與齒輪傳動裝置100相同之零件，藉由標註相同之參照編號或後兩位數字相同之參照編號而省略說明。 The gear transmission 200 of the second embodiment will be described with reference to Fig. 5 . The shape of the gear transmission 200-type crankshaft structure 280 is different from that of the gear transmission 100 of the first embodiment. The same components as those of the gear transmission device 100 are denoted by the same reference numerals or the same reference numerals, and the description thereof will be omitted.
於曲柄軸26之兩端固定有止動環264(264X、264Y)。止動環264 係於軸線44方向上配置於較第1圓柱滾子軸承32更靠外側。止動環264相當於第1環狀構件。止動環60X嵌入至貫通孔22，止動環60Y嵌入至貫通孔46。止動環60係於軸線44方向上配置於較止動環264更靠外側。因此，止動環60係於軸線44方向上配置於較第1圓柱滾子軸承32更靠外側。止動環60相當於第2環狀構件。 A stopper ring 264 (264X, 264Y) is fixed to both ends of the crank shaft 26. Stop ring 264 It is disposed outside the first cylindrical roller bearing 32 in the direction of the axis 44. The snap ring 264 corresponds to the first annular member. The stopper ring 60X is fitted into the through hole 22, and the stopper ring 60Y is fitted into the through hole 46. The snap ring 60 is disposed outside the retaining ring 264 in the direction of the axis 44. Therefore, the stopper ring 60 is disposed outside the first cylindrical roller bearing 32 in the direction of the axis 44. The snap ring 60 corresponds to the second annular member.
止動環60之內徑小於止動環264之外徑。因此，藉由止動環60與止動環264接觸，而限制曲柄軸構造體280沿軸向方向(軸線44方向)移動。再者，於曲柄軸構造體280之情形時，止動環264與第1圓柱滾子軸承32接觸。即，曲柄軸構造體280與曲柄軸構造體80(參照圖3)相比，無需墊圈62。齒輪傳動裝置200能以較齒輪傳動裝置100少之零件數進行製造。 The inner diameter of the stop ring 60 is smaller than the outer diameter of the stop ring 264. Therefore, the crankshaft structure 280 is restricted from moving in the axial direction (the direction of the axis 44) by the contact ring 60 being in contact with the stopper ring 264. Further, in the case of the crankshaft structure 280, the stopper ring 264 is in contact with the first cylindrical roller bearing 32. That is, the crankshaft structure 280 does not require the washer 62 as compared with the crankshaft structure 80 (refer to FIG. 3). The gear transmission 200 can be manufactured with a smaller number of parts than the gear transmission 100.
於上述實施例中，對外齒輪進行偏心旋轉之齒輪傳動裝置進行了說明。然而，本說明書中所揭示之技術亦可應用於內齒輪進行偏心旋轉之齒輪傳動裝置。重要之事項在於將安裝於曲柄軸之軸承、環狀構件之外徑調整為使偏心體卡合之齒輪(外齒輪或內齒輪)之貫通孔之直徑以下。 In the above embodiment, the gear transmission in which the external gear is eccentrically rotated has been described. However, the technique disclosed in this specification can also be applied to a gear transmission in which an internal gear is eccentrically rotated. An important point is that the outer diameter of the bearing and the annular member attached to the crankshaft is adjusted to be equal to or smaller than the diameter of the through hole of the gear (the external gear or the internal gear) that engages the eccentric body.
以上，對本發明之具體例詳細地進行了說明，但該等僅為例示，而並非限定申請專利範圍者。申請專利範圍所記載之技術中包含對以上例示之具體例實施各種變形、變更後所得者。本說明書或圖式中所說明之技術要素係單獨地或者藉由各種組合而發揮技術上之有用性，並不限定於申請時之請求項所記載之組合。又，本說明書或圖式中所例示之技術係同時達成複數個目的，達成其中之一個目的本身便具有技術上之有用性。 The specific examples of the present invention have been described in detail above, but these are merely examples and are not intended to limit the scope of the claims. The technology described in the scope of the patent application includes various modifications and alterations to the specific examples described above. The technical elements described in the specification or the drawings are technically useful individually or by various combinations, and are not limited to the combinations described in the claims at the time of filing. Moreover, the techniques exemplified in the specification or the drawings achieve a plurality of purposes at the same time, and achieving one of the objectives is technically useful in itself.
2‧‧‧殼體 2‧‧‧Shell
4‧‧‧角接觸球軸承 4‧‧‧Angle contact ball bearings
6‧‧‧油封 6‧‧‧ oil seal
10‧‧‧載體 10‧‧‧ Carrier
10a‧‧‧第1板 10a‧‧‧1st board
10b‧‧‧柱狀部 10b‧‧‧ Column
10c‧‧‧第2板 10c‧‧‧2nd board
10d‧‧‧端面 10d‧‧‧ end face
12X‧‧‧貫通孔 12X‧‧‧through hole
12Y‧‧‧貫通孔 12Y‧‧‧through hole
14‧‧‧貫通孔 14‧‧‧through holes
16X‧‧‧貫通孔 16X‧‧‧through hole
16Y‧‧‧貫通孔 16Y‧‧‧through hole
18‧‧‧貫通孔 18‧‧‧through holes
22‧‧‧貫通孔 22‧‧‧through holes
24X‧‧‧貫通孔 24X‧‧‧through hole
24Y‧‧‧貫通孔 24Y‧‧‧through hole
26‧‧‧曲柄軸 26‧‧‧ crankshaft
26a‧‧‧端部 26a‧‧‧End
28X‧‧‧偏心體 28X‧‧‧Eccentric body
28Y‧‧‧偏心體 28Y‧‧‧Eccentric body
30‧‧‧軸部 30‧‧‧Axis
32X‧‧‧第1圓柱滾子軸承 32X‧‧‧1st cylindrical roller bearing
32Y‧‧‧第1圓柱滾子軸承 32Y‧‧‧1st cylindrical roller bearing
34X‧‧‧第2圓柱滾子軸承 34X‧‧‧2nd cylindrical roller bearing
34Y‧‧‧第2圓柱滾子軸承 34Y‧‧‧2nd cylindrical roller bearing
36X‧‧‧外齒輪 36X‧‧‧ external gear
36Y‧‧‧外齒輪 36Y‧‧‧External gear
38‧‧‧內齒針 38‧‧‧ internal needle
40‧‧‧內齒輪 40‧‧‧Internal gear
42‧‧‧栓槽 42‧‧‧Bolt
44‧‧‧軸線 44‧‧‧ axis
46‧‧‧貫通孔 46‧‧‧through holes
48‧‧‧軸線 48‧‧‧ axis
52‧‧‧貫通孔 52‧‧‧through holes
100‧‧‧齒輪傳動裝置 100‧‧‧Gear transmission
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012202000A JP5973855B2 (en) | 2012-09-13 | 2012-09-13 | Gear transmission and crankshaft structure used therefor |
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| TW201418598A TW201418598A (en) | 2014-05-16 |
| TWI605213B true TWI605213B (en) | 2017-11-11 |
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| TW102133029A TWI605213B (en) | 2012-09-13 | 2013-09-12 | Gear transmission and crankshaft structure used therefor |
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| JP (1) | JP5973855B2 (en) |
| KR (1) | KR101669380B1 (en) |
| CN (1) | CN104620020B (en) |
| DE (1) | DE112013004462B4 (en) |
| TW (1) | TWI605213B (en) |
| WO (1) | WO2014042064A1 (en) |
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| JP6271343B2 (en) * | 2014-05-30 | 2018-01-31 | ナブテスコ株式会社 | Gear device |
| CN105276097A (en) * | 2015-11-25 | 2016-01-27 | 重庆大学 | Double-level differential movement type few-tooth-difference planetary gear transmission mechanism |
| JP6624938B2 (en) * | 2016-01-13 | 2019-12-25 | ナブテスコ株式会社 | Gear device and output gear plate |
| JP6767804B2 (en) * | 2016-07-29 | 2020-10-14 | 日本電産シンポ株式会社 | Gear transmission |
| JP6878036B2 (en) * | 2017-02-10 | 2021-05-26 | 住友重機械工業株式会社 | Eccentric swing type gear device |
| JP7398900B2 (en) * | 2019-08-13 | 2023-12-15 | ナブテスコ株式会社 | Bearing mechanism and reducer |
| JP2021067317A (en) * | 2019-10-23 | 2021-04-30 | ナブテスコ株式会社 | Speed reducer |
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| FR2571462A2 (en) * | 1984-10-08 | 1986-04-11 | Durand Francois | PLANETARY REDUCER WITH TWO DOUBLE ECCENTRICS |
| CA1244855A (en) * | 1985-01-18 | 1988-11-15 | Kazuyuki Matsumoto | Robot arm drive apparatus of industrial robot |
| JP2003262257A (en) * | 2002-03-08 | 2003-09-19 | Sumitomo Heavy Ind Ltd | Method for reducing angle transmission error of internal planetary gear device and transmission thereof |
| JP4847892B2 (en) * | 2007-02-22 | 2011-12-28 | 住友重機械工業株式会社 | Oscillating intermeshing planetary gear device and manufacturing method of eccentric shaft thereof |
| JP4747128B2 (en) * | 2007-04-24 | 2011-08-17 | 住友重機械工業株式会社 | Eccentric oscillation reduction device |
| JP2010169247A (en) * | 2008-12-26 | 2010-08-05 | Ntn Corp | Railroad vehicle drive unit |
| JP5693929B2 (en) * | 2009-11-20 | 2015-04-01 | ナブテスコ株式会社 | Swiveling drive for hybrid construction equipment |
| JP5492700B2 (en) * | 2010-08-05 | 2014-05-14 | 住友重機械工業株式会社 | Roller retainer and swinging intermeshing gear device |
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| DE112013004462T5 (en) | 2015-05-28 |
| CN104620020B (en) | 2017-03-15 |
| WO2014042064A1 (en) | 2014-03-20 |
| JP2014055654A (en) | 2014-03-27 |
| KR20150054940A (en) | 2015-05-20 |
| KR101669380B1 (en) | 2016-10-25 |
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