JP4455031B2 - Elevator hoisting machine - Google Patents

Elevator hoisting machine Download PDF

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Publication number
JP4455031B2
JP4455031B2 JP2003407413A JP2003407413A JP4455031B2 JP 4455031 B2 JP4455031 B2 JP 4455031B2 JP 2003407413 A JP2003407413 A JP 2003407413A JP 2003407413 A JP2003407413 A JP 2003407413A JP 4455031 B2 JP4455031 B2 JP 4455031B2
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oil
hoisting machine
elevator
sheave
groove
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JP2005162464A (en
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英彦 浦川
隆一 近藤
尚功 魚住
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

この発明はエレベータ用巻上機の油切り構造に関するものである。   The present invention relates to an oil draining structure for an elevator hoist.

従来のエレベータ用巻上機においては、巻上機の軸受用オイルシール部から流出するグリース等の油漏れ対策として、その連続面に例えばブレーキ制動面等の油に対してもろい部分が存在する場合、ブレーキ制動面に到達しないように油の流出経路の途中に油切り構造を設け、その保護を行う。油切り構造とは油を排出側へ流出させることにより連続面上へ油が付着することを妨げる構造を指す。この油切り構造は形状により効果が決定し、その形状を維持する限りその機能を維持できるという長所がある。従来のエレベータ用巻上機の油切り構造の一例としては、グリース等の油の流出経路上に油切り溝を設け、例えばブレーキ制動面への油の付着を妨げていた（例えば、特許文献１参照）。   In a conventional elevator hoisting machine, as a countermeasure against oil leakage such as grease flowing out from the bearing oil seal part of the hoisting machine, there is a brittle part against oil such as a braking surface on the continuous surface. An oil draining structure is provided in the middle of the oil outflow path so as not to reach the brake braking surface, and protection is provided. The oil draining structure refers to a structure that prevents oil from adhering to the continuous surface by causing the oil to flow to the discharge side. This oil draining structure has the advantage that the effect is determined by the shape and the function can be maintained as long as the shape is maintained. As an example of the oil drain structure of a conventional elevator hoist, an oil drain groove is provided on an oil outflow path of grease or the like to prevent oil from adhering to, for example, a brake braking surface (for example, Patent Document 1). reference).

特開２００１−６３９３３号公報（図５）JP 2001-63933 A (FIG. 5)

上記従来のエレベータ用巻上機の油切り構造では、その形状を維持する限りその機能を発揮するが、その反面、形状が変化するとその機能が全く損なわれる。例えば、異物の付着等がその例である。
図４は従来のエレベータ用巻上機の下半分を示す断面図、図５はその部分詳細図である。図において、エレベータ用巻上機は、軸１、軸受２、ロープ溝３ａを有する綱車３、ステータ４、磁石５、グリース等の軸受油６、及び軸受２に対しグリース等の軸受油６を保持するためのオイルシール７等を備えている。そして、このオイルシール７より流出した油は、綱車３等の内面を通り、その連続面上にあるブレーキ制動面１１に到達し、制動力を低下させる可能性がある。そこで、通常はその間に位置する綱車３等の内壁面に油切り溝８を設け、ブレーキ制動面１１への油の付着を防止している。
この防塵機能を持たない従来の油切り構造では、図５に示すように、油切り溝８に付着した油によって異物が付着し易くなり、油切り溝８を短絡するほどの大きさの異物１０が付着した場合には油切りの機能を損なうという問題点があった。 The above-described conventional oil draining structure for an elevator hoist exhibits its function as long as its shape is maintained. On the other hand, if its shape changes, its function is completely impaired. For example, the adhering of foreign matter is an example.
FIG. 4 is a sectional view showing a lower half of a conventional elevator hoisting machine, and FIG. 5 is a partial detail view thereof. In the figure, an elevator hoisting machine has a shaft 1, a bearing 2, a sheave 3 having a rope groove 3 a, a stator 4, a magnet 5, a bearing oil 6 such as grease, and a bearing oil 6 such as grease with respect to the bearing 2. An oil seal 7 or the like for holding is provided. The oil that has flowed out of the oil seal 7 passes through the inner surface of the sheave 3 and the like, reaches the brake braking surface 11 on the continuous surface, and may reduce the braking force. Therefore, an oil drain groove 8 is normally provided on the inner wall surface of the sheave 3 or the like positioned between them to prevent oil from adhering to the brake braking surface 11.
In the conventional oil draining structure having no dustproof function, as shown in FIG. 5, foreign matter easily adheres due to the oil adhering to the oil draining groove 8, and the foreign matter 10 having a size enough to short-circuit the oil draining groove 8. In the case of adhering, there is a problem that the function of oil draining is impaired.

この発明は、上述のような課題を解決するためになされたもので、その目的は、巻上機の軸受用オイルシール部からのグリース等の油漏れ対策として油切り溝を用いるとともに、この油切り溝の性能維持対策として防塵構造を兼ね備えたエレベータ用巻上機を提供するものである。 The present invention has been made to solve the above-described problems. The object of the present invention is to use an oil drain groove as a countermeasure against oil leakage from grease oil from a bearing oil seal portion of a hoisting machine. there is provided a hoisting machine for an elevator having both dustproof structure as maintain performance measures kerf.

この発明に係るエレベータ用巻上機は、巻上機の軸受用オイルシールから流出した油が、綱車の垂直内面を通り、その連続面上にあるブレーキ制動面に到達しないように油の流出経路の途中に位置する前記綱車の垂直内壁面に油切り溝を設けてなるものにおいて、油切り溝の近傍に、油に対する保護の強化を兼ねる防塵用のフェルト片を設けたものである。 The elevator hoisting machine according to the present invention allows the oil flowing out from the bearing oil seal of the hoisting machine to pass through the vertical inner surface of the sheave so as not to reach the brake braking surface on the continuous surface. The oil sheave groove is provided on the vertical inner wall surface of the sheave located in the middle of the route, and a dust-proof felt piece that also serves to enhance protection against oil is provided in the vicinity of the oil drain groove .

この発明は以上説明したように、巻上機の軸受用オイルシールから流出した油が、綱車の垂直内面を通り、その連続面上にあるブレーキ制動面に到達しないように油の流出経路の途中に位置する前記綱車の垂直内壁面に油切り溝を設けてなるものにおいて、油切り溝の近傍に、油に対する保護の強化を兼ねる防塵用のフェルト片を設けたので、油切り溝を短絡する大きさの異物が付着することがなく、油切り機能が損なわれることがない。 As described above, according to the present invention, the oil flowing out from the bearing oil seal of the hoisting machine passes through the vertical inner surface of the sheave and does not reach the brake braking surface on the continuous surface . in those formed by providing an oil kerf within the vertical wall surface of the sheave positioned in the middle, in the vicinity of the oil thrower groove is provided with the piece of felt dustproof also serving as a reinforcement of protection against oil, the oil thrower groove The foreign substance of the magnitude | size which short-circuits does not adhere, and an oil draining function is not impaired.

実施の形態１．
図１はこの発明の実施の形態１におけるエレベータ用巻上機の下半分を示す断面図である。
図１において、エレベータ用巻上機は、軸１、軸受２、ロープ溝３ａを有する綱車３、ステータ４、磁石５、グリース等の軸受油６、及び軸受２に対しグリース等の軸受油６を保持するためのオイルシール７等を備えている。そして、このオイルシール７より流出した油は、綱車３等の内面を通り、その連続面上にあるブレーキ制動面１１に到達し、制動力を低下させる可能性がある。そこで、通常はその間に位置する綱車３等の内壁面に油切り溝８を設け、ブレーキ制動面１１への油の付着を防止している。この実施の形態１では、更に、油切り溝８の近傍に、油に対する保護の強化を兼ねる防塵用のフェルト片１２を固定ねじ１３により設けることにより、油切り溝８の防塵対策を施している。 Embodiment 1 FIG.
1 is a sectional view showing a lower half of an elevator hoisting machine according to Embodiment 1 of the present invention.
In FIG. 1, an elevator hoist includes a shaft 1, a bearing 2, a sheave 3 having a rope groove 3 a, a stator 4, a magnet 5, bearing oil 6 such as grease, and a bearing oil 6 such as grease with respect to the bearing 2. An oil seal 7 or the like is provided. The oil that has flowed out of the oil seal 7 passes through the inner surface of the sheave 3 and the like, reaches the brake braking surface 11 on the continuous surface, and may reduce the braking force. Therefore, an oil drain groove 8 is usually provided on the inner wall surface of the sheave 3 or the like positioned between them to prevent oil from adhering to the brake braking surface 11. In the first embodiment, further, in the vicinity of the oil thrower groove 8, by a piece of felt 12 for dustproof also serving as a reinforcement of protection against oil provided by the fixing screw 13, is subjected to dustproof measures oil thrower groove 8 .

実施の形態２．
図２はこの発明の実施の形態２におけるエレベータ用巻上機の下半分を示す断面図である。
図２において、実施の形態１と同一又は相当部分に同一符号を付してあるので、説明を省略する。この実施の形態２では、油切り溝８の近傍に防塵用のフェルト片１２を固定腕１４の先端の挟持板１５により設けることにより、油切り溝８の防塵対策を施している。また、挟持板１５の下端部に防塵用のフェルト片１２に保持可能な量以上の油が吸収・含浸され、ブレーキ制動面１１へ流出するのを防止する舌片１６からなるリップ構造としている。 Embodiment 2. FIG.
FIG. 2 is a sectional view showing the lower half of the elevator hoisting machine according to Embodiment 2 of the present invention.
In FIG. 2, the same reference numerals are given to the same or corresponding parts as those in the first embodiment, and the description is omitted. In the second embodiment, by providing the tip holding plate 15 of the fixed arm 14 a piece of felt 12 for dustproof near the oil thrower groove 8, is subjected to dustproof measures oil thrower groove 8. Further, the lower end portion of the sandwiching plate 15 has a lip structure composed of a tongue piece 16 that prevents oil from being impregnated and impregnated in an amount greater than the amount that can be held by the dust-proof felt piece 12 and flowing out to the brake braking surface 11.

実施の形態３．
図３はこの発明の実施の形態３におけるエレベータ用巻上機の下半分を示す断面図である。
図３において、実施の形態１と同一又は相当部分に同一符号を付してあるので、説明を省略する。この実施の形態３では、油切り溝８の近傍に防塵用の接触シール１７を固定することにより、油切り溝８の防塵対策を施している。 Embodiment 3 FIG.
FIG. 3 is a sectional view showing the lower half of the elevator hoisting machine according to Embodiment 3 of the present invention.
In FIG. 3, the same reference numerals are given to the same or corresponding parts as those in the first embodiment, and the description is omitted. In the third embodiment, by fixing the contact seal 17 for dustproof near the oil thrower groove 8, it is subjected to dustproof measures oil thrower groove 8.

この発明の実施の形態１におけるエレベータ用巻上機の下半分を示す断面図である。It is sectional drawing which shows the lower half of the elevator hoisting machine in Embodiment 1 of this invention. この発明の実施の形態２におけるエレベータ用巻上機の下半分を示す断面図である。It is sectional drawing which shows the lower half of the elevator hoisting machine in Embodiment 2 of this invention. この発明の実施の形態３におけるエレベータ用巻上機の下半分を示す断面図である。It is sectional drawing which shows the lower half of the elevator hoisting machine in Embodiment 3 of this invention. 従来のエレベータ用巻上機の下半分を示す断面図である。It is sectional drawing which shows the lower half of the conventional elevator hoist. 従来のエレベータ用巻上機の部分詳細図である。It is a partial detail drawing of the conventional elevator hoist.

１ 軸
２ 軸受
３ 綱車
３ａ ロープ溝
４ ステータ
５ 磁石
６ 軸受油（グリース）
７ オイルシール
８ 油切り溝
９ 油排出穴
１０ 異物
１１ ブレーキ制動面
１２ 防塵用のフェルト片
１３ 固定ねじ
１４ 固定腕
１５ 挟持板
１６ 舌片（リップ構造）
１７ 接触シール 1 shaft 2 bearing 3 sheave 3a rope groove 4 stator 5 magnet 6 bearing oil (grease)
7 Oil seal 8 Oil drain groove 9 Oil discharge hole 10 Foreign object 11 Brake braking surface 12 Dust-proof felt piece 13 Fixing screw 14 Fixing arm 15 Holding plate 16 Tongue piece (lip structure)
17 Contact seal

Claims (3)

エレベータ用巻上機の軸受用オイルシールから流出した油が、綱車の垂直内面を通り、その連続面上にあるブレーキ制動面に到達しないように油の流出経路の途中に位置する前記綱車の垂直内壁面に油切り溝を設けてなるエレベータ用巻上機において、前記油切り溝の近傍に、油に対する保護の強化を兼ねる防塵用のフェルト片を設けたことを特徴とするエレベータ用巻上機。 The sheave is located in the middle of the oil outflow path so that the oil that has flowed out of the bearing oil seal of the elevator hoist passes through the vertical inner surface of the sheave and does not reach the brake braking surface on the continuous surface. An elevator hoisting machine in which an oil draining groove is provided on the vertical inner wall surface of the elevator, and a dustproof felt piece that also serves to enhance protection against oil is provided in the vicinity of the oil draining groove . Upper machine. フェルト片が吸収した油を排出側へ流出させる舌片からなるリップ構造を設けたことを特徴とする請求項１記載のエレベータ用巻上機。 Claim 1 elevator hoist according to the felt piece, characterized in that a lip structure consisting of tongues to drain the absorbed oil to the discharge side. 油切り溝の近傍に、防塵用のフェルト片の代わりに防塵用の接触シールを設けたことを特徴とする請求項１記載のエレベータ用巻上機。 2. The elevator hoisting machine according to claim 1 , wherein a dust-proof contact seal is provided in the vicinity of the oil drain groove instead of the dust-proof felt piece .
JP2003407413A 2003-12-05 2003-12-05 Elevator hoisting machine Expired - Lifetime JP4455031B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2008162787A (en) * 2006-12-29 2008-07-17 Mitsubishi Electric Corp Hoisting machine for elevator
JP5263865B2 (en) * 2007-09-12 2013-08-14 東芝産業機器製造株式会社 Electric motor for hoisting machine
JP5194806B2 (en) * 2008-01-09 2013-05-08 株式会社明電舎 Elevator hoisting device
JP5251257B2 (en) * 2008-05-26 2013-07-31 株式会社明電舎 Elevator hoisting machine
JP5198342B2 (en) * 2009-04-17 2013-05-15 株式会社東芝 Rotating electric machine
JP5508764B2 (en) * 2009-06-03 2014-06-04 株式会社日立製作所 Elevator equipment
JP5468028B2 (en) * 2011-01-26 2014-04-09 株式会社日立製作所 Thin hoisting machine for elevator
CN102730524A (en) * 2012-06-29 2012-10-17 佛山市顺德区金泰德胜电机有限公司 Tractor
JP6260024B2 (en) 2013-11-07 2018-01-17 株式会社明電舎 Elevator hoisting machine
JP6240958B2 (en) * 2013-12-27 2017-12-06 株式会社明電舎 Elevator hoisting machine
JP5931958B2 (en) * 2014-05-19 2016-06-08 東芝エレベータ株式会社 Oil leakage prevention structure for hoisting machine
CN108408540B (en) * 2018-03-12 2020-01-31 日立电梯电机（广州）有限公司 Traction machine and elevator
JP7010400B1 (en) * 2021-03-05 2022-01-26 三菱電機株式会社 Elevator brake device
JP7256977B1 (en) 2022-09-13 2023-04-13 フジテック株式会社 Elevator hoisting device and elevator

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