JPS5940870A - Apparatus for stabilizing brake force of slow falling machine - Google Patents
Apparatus for stabilizing brake force of slow falling machineInfo
- Publication number
- JPS5940870A JPS5940870A JP15007082A JP15007082A JPS5940870A JP S5940870 A JPS5940870 A JP S5940870A JP 15007082 A JP15007082 A JP 15007082A JP 15007082 A JP15007082 A JP 15007082A JP S5940870 A JPS5940870 A JP S5940870A
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- outer periphery
- support wheel
- shoe support
- annular space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Emergency Lowering Means (AREA)
- Braking Arrangements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は降下索が摩擦係合する滑車と、歯車伝動機構を
介して該滑車によシ増速駆動される遠心ブレーキのシュ
ー支持車とを外筐内に同軸に取付けた緩降機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a structure in which a pulley with which a descending cable is frictionally engaged and a shoe support wheel of a centrifugal brake, which is driven to increase speed by the pulley through a gear transmission mechanism, are coaxially arranged in an outer casing. Regarding the installed slow descent machine.
近時緊急避難時の避難準備や取扱いを容易にするため、
緩降機の小型軽量化が要望されているが、緩降機を小型
化するにつれシュー支持車の回転速度が増大するため遠
心ブレーキの冷却が必要となる。又滑車の数倍の速度で
回転するシュー支持車がブレーキシューと協同して一種
の遠心ファンを形成するため、該滑車を経由する降下索
よシ生ずる綿糸屑やブレーキシューの摩耗屑がシュー支
持車の軸受よシ潤出する潤滑油を吸収してブレーキドラ
ム内面に附着し、制動力を不安定にして降下速度を変動
させる恐れがアシ、降下索にか＼る荷重の犬なる時や降
下高さの高い場合にはとの傾向が特に著しく、まことに
危険である。To facilitate evacuation preparation and handling during recent emergency evacuations,
There is a demand for smaller and lighter gradual descent machines, but as the gradual descent machines become smaller, the rotational speed of the shoe support wheels increases, making it necessary to cool the centrifugal brake. In addition, the shoe support wheel, which rotates at several times the speed of the pulley, cooperates with the brake shoe to form a kind of centrifugal fan, so cotton thread waste generated by the descending cable passing through the pulley and wear debris from the brake shoe support the shoe. It absorbs lubricating oil from the car's bearings and adheres to the inner surface of the brake drum, making the braking force unstable and causing the descent speed to fluctuate. If the height is high, this tendency is particularly noticeable and can be truly dangerous.
これを防ぐため外筐内に隔壁を設けて、滑車や歯車伝動
機構の内蔵室と遠心ブレーキ内蔵室を分離したとしても
、該隔壁とこれを貫通する歯車状伝動軸の間には間隙を
必要、とするから、滑車等の内蔵室内で遊星歯車等によ
シ攪拌されている綿糸屑が該間隙よシ前述の遠心ファン
の吸込作用によって遠心ブレーキ内蔵室に吸込まれるこ
とになシ、避難者が反覆降下すると、やはシ制動力が不
安定となシ、初期の降下速度が保たれなくなる。In order to prevent this, even if a partition wall is provided in the outer casing to separate the built-in chamber of the pulley or gear transmission mechanism from the centrifugal brake built-in chamber, a gap is required between the partition wall and the gear-shaped transmission shaft that passes through it. , therefore, the cotton thread waste being stirred by a planetary gear or the like in a chamber built in a pulley or the like will not be sucked into the chamber built in a centrifugal brake by the suction action of the centrifugal fan mentioned above through the gap. If a person repeatedly descends, the braking force becomes unstable and the initial descending speed cannot be maintained.
本発明はこの問題に対処するもので、シュー支持車の滑
車側外周にフランジ状の導風板を突出固着して、該シュ
ー支持車の外周部分と外筐のブレーキドラム外周部分と
の間にＬ字状断面の環状空間を形成させ、該環状空間の
滑車側開放端を外気に連通ずる開口を外筐の外周部に設
けると共に、該環状空間の反対側開放端を外気に連通ず
る開口をブレーキドラムの端板部分に穿設し、シュー支
持車軸受の該ブレーキドラム端板部分側端末に、。該軸
受よシ前記環状空間の反対側端末への油の潤出を防止す
る手段を設けたことを特徴とする。The present invention deals with this problem by protruding and fixing a flange-shaped baffle plate to the outer periphery of the shoe support wheel on the pulley side, and between the outer periphery of the shoe support wheel and the outer periphery of the brake drum of the outer casing. An annular space having an L-shaped cross section is formed, an opening is provided in the outer periphery of the outer casing to communicate the open end of the annular space on the pulley side to the outside air, and an opening that communicates the open end on the opposite side of the annular space to the outside air is provided. A hole is formed in the end plate of the brake drum, and the shoe support wheel bearing is provided at the end of the brake drum end plate. The bearing is characterized in that means is provided for preventing oil from seeping out to the opposite end of the annular space.
図は本発明の一実施例を示し、外筐１は上端を建造物の
取付金具に懸架する環２ａに形成した基板２に、歯車伝
動機構の内歯車６によシ一体に結合した３個の脚４を介
して皿状のプレーキト２ム５を、該各脚に挿通したボル
ト６とナツト７で一体に結合固着し、その外周を基板２
に４本のリベット８で固着した筒状の化粧カッぐ−９で
被覆してなシ、ブレーキドラム５の外側円形凹所５′内
には、周囲を均分して配設した３個のスペーサ１０を介
して円形銘板１１がリベット１２で固着され。The figure shows an embodiment of the present invention, in which an outer casing 1 has three parts integrally connected to an internal gear 6 of a gear transmission mechanism, and a base plate 2 whose upper end is formed into a ring 2a suspended from a mounting bracket of a building. A plate-shaped plate 2m 5 is connected and fixed together with bolts 6 and nuts 7 inserted through the legs 4, and its outer periphery is attached to the board 2.
The outer circular recess 5' of the brake drum 5 is covered with a cylindrical decorative cup 9 fixed with four rivets 8, and the outer circular concave part 5' of the brake drum 5 has three pieces arranged evenly around the circumference. A circular nameplate 11 is fixed with a rivet 12 via a spacer 10.
該銘板１１の外周縁と円形凹所５′の外周の間に３個の
円弧状空気吸込口１６を形成している。尚９ａは化粧カ
バー９のボルトナラ） （６，７）を覆う部分を示す。Three arcuate air suction ports 16 are formed between the outer periphery of the nameplate 11 and the outer periphery of the circular recess 5'. Note that 9a indicates the portion of the decorative cover 9 that covers the bolt nuts (6, 7).
尚第１図の右半分は化粧カバー９．銘板１１を取説した
所を示すが、同図に示されていない他の片側半分は図示
した部分と全く左右対称の構成を持つものとする。The right half of Figure 1 is the cosmetic cover 9. Although the nameplate 11 is illustrated, the other half, which is not shown in the figure, has a configuration that is completely symmetrical to the illustrated part.
１４は一端を基板２に固着され、他端をブレーキドラム
５に挿通した主軸で、該主軸１４には降下索１５が経由
する■溝１６ａを備える滑車１６と、シュー支持車１７
とが、夫々滑車或いはシュー支持車側に取付は九含油軸
受（ブツシュ）１８゜１９を介して回動自在に支承され
るＯシュー支持車１７の滑車側には太陽歯車２０が一体
に設けられ、該太陽歯車２０と内歯車６に同時に噛合う
３個の遊星歯車２１が夫々滑車１６に、その周囲を均分
して植設した３個の支軸２２によって回動自在に支承さ
れる。A main shaft 14 has one end fixed to the base plate 2 and the other end inserted into the brake drum 5. The main shaft 14 has a pulley 16 provided with a groove 16a through which the descending cable 15 passes, and a shoe support wheel 17.
A sun gear 20 is integrally provided on the pulley side of the O shoe support wheel 17, which is rotatably supported via oil-impregnated bearings 18 and 19, respectively. , three planetary gears 21 that mesh with the sun gear 20 and the internal gear 6 at the same time are rotatably supported on the pulley 16 by three support shafts 22 installed on the pulley 16 with their circumferences equally spaced.
ディスク状のシュー支持車１７はその外周に４個の円弧
状長大１７ａを均分凹設し、且つその滑車側外周にはフ
ランジ状の導風板１７ｂが一体に設けられる。２６は円
弧状長孔１７ａに夫々遊嵌係合する円弧状ブレーキシュ
ーを示し、該ブレーキシュー２６が遠心力により摩擦接
触する耐摩耗性環状板５ａｔ鋳込んだブレーキドラム５
の外端はフランジ部分５ｂに形成して、該フレーキトラ
ムとシュー支持車１７の外周部分相互の間にＬ字状断面
の環状空間Ａを形成させる。５Ｃはブレーキドラム５の
外周に多数設けた放熱フィンである。The disc-shaped shoe support wheel 17 has four arcuate elongated sections 17a recessed equally on its outer periphery, and a flange-shaped baffle plate 17b is integrally provided on its outer periphery on the pulley side. Reference numeral 26 indicates arcuate brake shoes that are loosely fitted into the arcuate elongated holes 17a, and the brake drum 5 has a wear-resistant annular plate 5at that is in frictional contact with the brake shoes 26 due to centrifugal force.
The outer end of the shoe support wheel 17 is formed at a flange portion 5b to form an annular space A having an L-shaped cross section between the outer peripheral portions of the flake tram and the shoe support wheel 17. 5C is a large number of heat radiation fins provided on the outer periphery of the brake drum 5.
環状空間Ａの滑車側開放端はフランジ部分５ｂと化粧カ
バー９の間の隙間Ｂと、内歯車６の下端に対向する該化
粧カバーに切起し部分９ｂを設けて、該切起し部分と内
歯車の間に基板２に向って形成させた開口Ｃと、滑車１
６を囲む化粧カッ（−９に切起し部分９Ｃを設けて基板
２に向って形成させた開口りを介して外気に連通するＯ
又環状空間Ａの反対側開放端はブレーキドラム５の端板
部分５ｄに穿設した開口２４を介して前記空気吸込口１
６に連通する。The open end of the annular space A on the pulley side is provided with a gap B between the flange portion 5b and the decorative cover 9, and a cut-and-raised portion 9b on the decorative cover facing the lower end of the internal gear 6. An opening C formed toward the base plate 2 between the internal gears and the pulley 1
A decorative cup (-9) surrounding the decorative cup (-9) is provided with a cut-and-raised portion 9C to communicate with the outside air through an opening formed toward the substrate 2.
The opposite open end of the annular space A is connected to the air suction port 1 through an opening 24 formed in the end plate portion 5d of the brake drum 5.
6.
シュー支持車１７のプレーキトジム端板部分５ｄに対向
する面には、その含油軸受１９の取付部分を囲む環状凹
所１７ｃを設け、該環状凹所内に遊嵌する二重の筒状油
受け５ｆｔ５ｇをブレーキドラム端板部分５ｄよシ突出
させて、軸受１９よシ潤出した油の飛散防止を計る０外
側の筒状油受け５ｆは内側の筒状油受け５ｇよシもシュ
ー支持車側に若干突出させ、内側の筒状油受け５ｇよシ
溢出した潤滑油を外側の筒状油受け５ｆが受止めるよう
にするのが呵い０
２５．２６，２７は基板２の下端部とこれに対向する案
内板２８との間に夫々軸支させた降下索１５の案内車で
、滑車１６を経由した両側の降下索１５は第４図に示す
ように夫々案内車２５．２７間と案内車２６ ｓ ２７
間を通る。An annular recess 17c surrounding the mounting portion of the oil-impregnated bearing 19 is provided on the surface of the shoe support wheel 17 facing the plate end plate portion 5d, and a double cylindrical oil receiver 5ft 5g is loosely fitted into the annular recess. The outer cylindrical oil receiver 5f is made to protrude beyond the brake drum end plate 5d to prevent oil leaking from the bearing 19. The outer cylindrical oil receiver 5f should protrude to catch the lubricating oil spilled from the inner cylindrical oil receiver 5g. As shown in FIG. s 27
pass between
図中１７ｄはシュー支持車１７の白抜穴を示し、ブレー
キドラム端板部分５ｄとシュー支持車１７の含油軸受取
付部分の間、太陽歯車２０と滑車１６との間、及び該滑
車と基板２の間には、夫々主軸１４に嵌装したベークラ
イト製のスペーサ板２９３０．３１を挟持させている。In the figure, 17d indicates a white hole in the shoe support wheel 17, between the brake drum end plate portion 5d and the oil-impregnated bearing mounting portion of the shoe support wheel 17, between the sun gear 20 and the pulley 16, and between the pulley and the base plate 2. Bakelite spacer plates 2930.31 fitted onto the main shafts 14 are sandwiched between them.
本発明の緩降機は、降下索１５の一端に身を托した避難
者の重力作用によって駆動される滑車１６が、歯車伝動
機構（３，２０，２１）を介して遠心ブレーキのシュー
支持車１７を毎分１０００回転以上に増速駆動すること
によシ、そのブレーキシュー２６を遠心力の作用でブレ
ーキドラム５に抑圧保合させ、該遠心ブレーキシューの
摩擦抵抗によって避難者の降下速度を等速一定化するも
のである。In the slow descent machine of the present invention, a pulley 16 driven by the gravitational force of an evacuee who has immersed himself on one end of a descending cable 15 is connected to a shoe support wheel of a centrifugal brake via a gear transmission mechanism (3, 20, 21). 17 at an increased speed of 1,000 revolutions per minute or more, the brake shoe 26 is pressed and held against the brake drum 5 by the action of centrifugal force, and the descending speed of the evacuee is reduced by the frictional resistance of the centrifugal brake shoe. This makes the speed constant.
本発明においては、ブレーキドラム５とシュー支持車１
７の外周部分相互の間にＬ字状断面の環状空間Ａを形成
させて、滑車１６の数倍の速度で駆動されるシュー支持
車１７やそのブレーキシュー２６による遠心送風作用に
よって空気吸込口１６から吸込まれた外気を、環状空間
Ａの滑車側開放端よシ半径方向外方へと外筐１内に吹出
させ、該吹出風が外筐１外周の隙間Ｂや開口Ｃ，Ｄよシ
排出されるようにしたから、降下索１５が滑車１６を経
由する際に、その芯ワイヤ１５ｂ周囲の金剛打ち綿外被
１５ａよシ生ずる綿糸屑が、外筐１内において遊星歯車
２１等によシ攪拌されても、該綿糸屑が環状空間Ａ内に
侵入する恐れは全くない。In the present invention, the brake drum 5 and the shoe support vehicle 1
An annular space A having an L-shaped cross section is formed between the outer circumferential portions of the air suction ports 16 and 7, and the air suction port 16 is created by centrifugal air blowing by the shoe support wheel 17 and its brake shoes 26, which are driven at several times the speed of the pulley 16. The outside air sucked in from the annular space A is blown out from the open end on the pulley side into the outer casing 1 in the radial direction, and the blown air is discharged through the gap B on the outer periphery of the outer casing 1 and the openings C and D. Therefore, when the descending rope 15 passes through the pulley 16, the cotton thread waste generated from the cotton lining 15a around the core wire 15b is removed by the planetary gear 21 etc. in the outer casing 1. Even when agitated, there is no possibility that the cotton thread waste will enter the annular space A.
又遠心ブレーキ作動時の温度上昇によって軸受１９のブ
レーキドラム端板部分５ｄ側端末から潤出して遠心力に
より飛散する潤滑油は、筒状油受け５ｇ、５ｆや環状凹
所１７ｃにより受止められるから、該潤出潤滑油がブレ
ーキドラム５のブレーキシュー接触面に耐着する恐れは
全くなく、シかもブレーキシュー２６の摩耗屑も遠心フ
ァンの作用によって外筐１外に排出されるから、遠心ブ
レーキの制動力はその回転速度に応じて常に安定する。Furthermore, the lubricating oil that oozes out from the end of the brake drum end plate 5d side of the bearing 19 due to the temperature rise during centrifugal brake operation and is scattered by centrifugal force is caught by the cylindrical oil receivers 5g, 5f and the annular recess 17c. There is no risk that the lubricating oil will adhere to the contact surface of the brake shoes of the brake drum 5, and the wear debris of the brake shoes 26 will also be discharged to the outside of the outer casing 1 by the action of the centrifugal fan. The braking force of is always stable depending on its rotation speed.
従って本発明によれば、緩降機の制動力を常に安定させ
得るのみならず、遠心ブレーキをその遠心送風作用によ
シ冷却できるから、緩降機の小型軽量化が可能となシ、
しかも使用荷重の増加又は降下距離の増大も安全に行い
得る効果がある。Therefore, according to the present invention, not only can the braking force of the gradual descent machine be constantly stabilized, but also the centrifugal brake can be cooled by its centrifugal air blowing action, so that the gradual descent machine can be made smaller and lighter.
Moreover, it has the effect of safely increasing the working load or increasing the descending distance.
第１図は正面図、第２図は縦断側面図、第３図は第１図
のＸ−Ｘ断面図、第４図は滑車の降下索経由部分の概略
を示す縦断正面図である。
１・・・外筐、６・・・内歯車、５・・・ブレーキドラ
ム、５ ｄ−°°ブレーキドラム端板部分、５ｆ、５ｇ
・・・筒状油受け、１６・・・空気吸込口、１４・・・
主軸、１５・・・降下索い１６・・・滑車、１７・・・
シュー支持車、１７ｂ・・・導風板、１７ｃ・・・環状
凹所、１８，１９・・・含油軸受、２０・・・太陽歯車
、２１・・・遊星歯車、２６・・・ブレーキシュー、２
４・・・開口、Ａ・・・Ｌ字状断面の環状空間、Ｂ、Ｃ
，Ｄ・・・隙間或いは開口。FIG. 1 is a front view, FIG. 2 is a longitudinal side view, FIG. 3 is a sectional view taken along line XX in FIG. 1... Outer casing, 6... Internal gear, 5... Brake drum, 5 d-°° brake drum end plate portion, 5f, 5g
... Cylindrical oil receiver, 16... Air suction port, 14...
Main shaft, 15... descending rope 16... pulley, 17...
Shoe support wheel, 17b... Air guide plate, 17c... Annular recess, 18, 19... Oil-impregnated bearing, 20... Sun gear, 21... Planetary gear, 26... Brake shoe, 2
4... Opening, A... Annular space with L-shaped cross section, B, C
, D... Gap or opening.
Claims (1)
滑車によシ増速駆動される遠心ブレーキのシュー支持車
とを外筐内に同軸に取付けた緩降機において、シュー支
持車の滑車側外周にフランジ状の導風板を突出固着して
、該シュー支持車の外周部分と外筐のプレーキトツム外
周部分との間にＬ字状断面の環状空間を形成させ、該環
状空間の滑車、側開放端を外気に連通ずる開口を外筐の
外周部に設けると共に、該環状空間の反対側開放端を外
気に連通ずる開口をブレーキドラムの端板部分に穿設し
、シュー支持車軸受の該プレーキト、ラム端板部分側端
末に、該軸受よシ前記環状空間の反対側端末への油の潤
出を防止する手段を設けたことを特徴とする緩降機の制
動力安定装置。In a gradual descending machine in which a pulley with which a descending cable engages with friction and a shoe support wheel of a centrifugal brake which is driven to increase speed by the pulley via a gear transmission mechanism are coaxially mounted in an outer casing, the shoe support wheel A flange-shaped baffle plate is protruded and fixed to the outer periphery of the pulley side, and an annular space with an L-shaped cross section is formed between the outer periphery of the shoe support wheel and the outer periphery of the plate of the outer casing. An opening is provided in the outer periphery of the outer casing through which the open end of the pulley side communicates with the outside air, and an opening through which the open end on the opposite side of the annular space communicates with the outside air is bored in the end plate portion of the brake drum. A braking force stabilizing device for a slow descent machine, characterized in that a means for preventing oil from seeping out from the bearing to the end on the opposite side of the annular space is provided at the end of the bearing on the side of the plate and the ram end plate. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15007082A JPS5940870A (en) | 1982-08-31 | 1982-08-31 | Apparatus for stabilizing brake force of slow falling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15007082A JPS5940870A (en) | 1982-08-31 | 1982-08-31 | Apparatus for stabilizing brake force of slow falling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5940870A true JPS5940870A (en) | 1984-03-06 |
| JPH0214068B2 JPH0214068B2 (en) | 1990-04-06 |
Family
ID=15488858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15007082A Granted JPS5940870A (en) | 1982-08-31 | 1982-08-31 | Apparatus for stabilizing brake force of slow falling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5940870A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51106882A (en) * | 1975-03-18 | 1976-09-22 | Seibu Denki Kogyo Kk | ENSHINBUREEKISOCHI |
| JPS52148999A (en) * | 1976-06-07 | 1977-12-10 | Chiyoujiyu Hosono | Slow elevator |
-
1982
- 1982-08-31 JP JP15007082A patent/JPS5940870A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51106882A (en) * | 1975-03-18 | 1976-09-22 | Seibu Denki Kogyo Kk | ENSHINBUREEKISOCHI |
| JPS52148999A (en) * | 1976-06-07 | 1977-12-10 | Chiyoujiyu Hosono | Slow elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0214068B2 (en) | 1990-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2441008A (en) | Wheel cover | |
| US5535850A (en) | Driven axle assembly for vehicles with a lubricant circulation system | |
| US2891808A (en) | Oil-and-vapor shaft-seal | |
| US4011930A (en) | Means to present lubricating and cooling fluid to friction material in a wet brake system | |
| KR101577377B1 (en) | Descending device for escape | |
| US3285328A (en) | Cooling cover assemblies | |
| US4540077A (en) | Clutch cooling device | |
| KR200476189Y1 (en) | Automatic descending life line | |
| JPS5940870A (en) | Apparatus for stabilizing brake force of slow falling machine | |
| US3982618A (en) | Brake provided with gravity-feed automatic supplementary-cooling control | |
| US7097005B2 (en) | Abseiling device | |
| US1380584A (en) | Clark w | |
| SE0003151D0 (en) | Device for sudden braking of a press | |
| JP6452845B2 (en) | Rotating machine and elevator hoisting machine | |
| WO1980001200A1 (en) | Centrifugal lubrication system for transmission pocket bearing | |
| US3884335A (en) | Dual clutches with splash & gravity cooling circuits | |
| JP6245125B2 (en) | Brake dust cover | |
| CN105056415B (en) | Slow descending speed regulating technology | |
| JPH0211086Y2 (en) | ||
| US3007352A (en) | Planetary drive mechanisms for excavating machines or the like | |
| KR101581137B1 (en) | Oil supply structure of Descending device | |
| JPH0542833A (en) | Driving gear of retarder-equipped vehicle | |
| KR200331616Y1 (en) | A drop controller of emergency-escape-rope | |
| US1955309A (en) | Constant-speed drive device | |
| JPH1178407A (en) | Axle device for vehicle |