JP2002303341A - Braking device - Google Patents
Braking deviceInfo
- Publication number
- JP2002303341A JP2002303341A JP2001108685A JP2001108685A JP2002303341A JP 2002303341 A JP2002303341 A JP 2002303341A JP 2001108685 A JP2001108685 A JP 2001108685A JP 2001108685 A JP2001108685 A JP 2001108685A JP 2002303341 A JP2002303341 A JP 2002303341A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- brake shoe
- iron core
- seat
- movable iron
- 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
- Braking Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、巻上機等に用いら
れるブレーキ装置に関する。The present invention relates to a brake device used for a hoist or the like.
【０００２】[0002]
【従来の技術】従来の制動（ブレーキ）装置は、摩擦材
をディスクの両側面に押圧するディスクブレーキ、また
は、摩擦材をドラム外方、または内方から押圧するドラ
ムブレーキ等が有り、それぞれのアクチュエーターとし
て、油圧、空圧、電磁、メカニカル等の方式が使用され
ていた。2. Description of the Related Art Conventional braking devices include a disk brake for pressing a friction material against both side surfaces of a disk and a drum brake for pressing a friction material from outside or inside a drum. As the actuator, a system such as a hydraulic system, a pneumatic system, an electromagnetic system, and a mechanical system has been used.
【０００３】[0003]
【発明が解決しようとする課題】このような従来のブレ
ーキ装置は、径方向、及び、特に軸方向に、大きなスペ
ースを必要とした為、要求されるスペースに収容される
ための小型化が出来なかった。また、ブレーキ作動音を
微小にすることが困難であり、構造が複雑となり、その
為に組み立てや、微妙な調整が困難であった。あるい
は、制限されたスペース内では、要求される電磁石の出
力が得られにくい欠点があった。本発明の目的は、この
ような従来の問題点を解決して、特に制限された軸方向
にコンパクトに収容出来るようにすると共に、作動音の
極めて静かで、微妙な調整が容易で、構造簡単で強力な
ブレーキ装置を提供する点にある。Since such a conventional brake device requires a large space in the radial direction, and particularly in the axial direction, it can be downsized to be accommodated in the required space. Did not. Also, it was difficult to make the brake operation sound minute, and the structure was complicated, which made it difficult to assemble and make fine adjustments. Alternatively, there is a disadvantage that it is difficult to obtain the required output of the electromagnet in the limited space. SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem, and to make it possible to accommodate compactly in a limited axial direction, and to make the operation sound extremely quiet, easy to finely adjust, and simple in structure. In providing a powerful and powerful braking device.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明は、ブレ
ーキドラム内周面に対応して一対の電磁ブレーキ部を18
0°反対位置に内蔵した内部拡張型のブレーキ装置に於
て、上記各電磁ブレーキ部の電磁石の可動鉄心と、上記
ブレーキドラム内周面に当接可能に配設されたブレーキ
シューとの間を、２本の平行な連結部材にて連結し、該
２本の連結部材は上記ブレーキシューの両端近傍に配設
され、かつ、該各連結部材の基端は可動鉄心に固着立設
され、先端は、球面座と平面座を介して上記ブレーキシ
ューに取付けられ、さらに、上記ブレーキシューの両端
を受けるトルク受け面を、ブレーキ取付部材と一体状の
突出部に、形成したものである。SUMMARY OF THE INVENTION Accordingly, the present invention provides a pair of electromagnetic brakes corresponding to the inner peripheral surface of a brake drum.
In the internal expansion type brake device built in at a position opposite to 0 °, the distance between the movable iron core of the electromagnet of each of the electromagnetic brake units and the brake shoe disposed so as to be in contact with the inner peripheral surface of the brake drum is set. Connected by two parallel connecting members, the two connecting members are disposed near both ends of the brake shoe, and the base ends of the respective connecting members are fixedly mounted on the movable iron core, Has a torque receiving surface mounted on the brake shoe via a spherical seat and a flat seat, and receiving both ends of the brake shoe on a protrusion integrally formed with the brake mounting member.
【０００５】また、各連結部材の基端は可動鉄心に螺進
退調整自在に螺着され、かつ、該各連結部材の先端を、
球面座・平面座の圧接方向へ常時弾発付勢するための弾
発部材が、付設されているものである。また、連結部材
の先端に頭部を膨出形成して、該頭部の先端球面部によ
って上記球面座の一部を構成し、かつ、該頭部の背面部
分を略円錐面部とし、さらに、上記弾発部材を板バネ片
としてブレーキシューの背面に固着すると共に、上記略
円錐面部に上記板バネ片の先端を当接させたものであ
る。[0005] The base end of each connecting member is screwed to the movable iron core so as to be able to advance and retreat freely, and the distal end of each connecting member is
A resilient member for constantly resiliently biasing the spherical seat and the flat seat in the pressure contact direction is provided. Further, a head is formed to bulge at the tip of the connecting member, a part of the spherical seat is constituted by the tip spherical portion of the head, and the back portion of the head is formed as a substantially conical surface portion, The resilient member is fixed to the back surface of the brake shoe as a leaf spring piece, and the tip of the leaf spring piece is brought into contact with the substantially conical surface portion.
【０００６】[0006]
【発明の実施の形態】以下、図示の実施の形態に基づき
本発明を詳説する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the illustrated embodiments.
【０００７】図１の一部断面正面図、図２の要部の平面
図及び図３の要部断面側面図に於て、１は円筒型のブレ
ーキドラムであって、図３に２点鎖線にて示した被制動
用回転体Ｍから一体に突設、又は、回転体Ｍに固着され
て、一体に回転する。1 is a partial sectional front view, FIG. 2 is a plan view of an essential part, and FIG. 3 is a sectional side view of an essential part. Reference numeral 1 denotes a cylindrical brake drum, and FIG. , Or integrally protrudes from the braked rotating body M, or is fixed to the rotating body M and rotates integrally.
【０００８】この回転体Ｍとしては、モータのロータ
や、巻胴等であり、図３で示すように、ブレーキ装置Ｂ
と共に軸心方向Ｃに寸法上狭小な制限のある場所に、設
置される。２はブレーキ取付部材を示し、壁体等の取付
面３にボルト等にて固着されるが、この取付面３とそれ
に平行な他の面４との間隔寸法Ｗが制限され、極めて小
さい場合を例示する。The rotating body M is a motor rotor, a winding drum or the like. As shown in FIG.
At the same time, it is installed in a place where the dimension is narrow in the axial direction C. Reference numeral 2 denotes a brake mounting member, which is fixed to a mounting surface 3 such as a wall by bolts or the like. The distance W between the mounting surface 3 and another surface 4 parallel to the mounting surface 3 is limited. For example.
【０００９】図示の実施の形態では、ブレーキ取付部材
２には孔部５が中央に形成され、これに軸受６が嵌着さ
れ、この軸受６を介して前記回転体Ｍの軸７が回転可能
に枢支されている。この軸７の軸心と上記ブレーキドラ
ム１の軸心Ｃ0 は一致する。In the illustrated embodiment, a hole 5 is formed in the center of the brake mounting member 2 and a bearing 6 is fitted into the hole 5 so that the shaft 7 of the rotating body M can rotate through the bearing 6. Is pivoted to. The axis of the shaft 7 coincides with the axis C 0 of the brake drum 1.
【００１０】８，８は電磁ブレーキ部であって、ブレー
キドラム１の内周面１ａに対応して180°反対位置に、
一対を配設する。つまり、図１に示す如く、ブレーキド
ラム１の軸心点Ｏを通る中央区画基準線Ｌに関して、一
対の電磁ブレーキ部８，８は線対称型に、又は、軸心点
Ｏに関して 180°回転対称として、配設されている。Numerals 8 and 8 denote electromagnetic brake units which are 180 ° opposite to each other with respect to the inner peripheral surface 1a of the brake drum 1.
Arrange a pair. That is, as shown in FIG. 1, the pair of electromagnetic brake parts 8, 8 are rotationally symmetric with respect to the center point reference line L passing through the axis point O of the brake drum 1, or 180 ° with respect to the axis point O. It is arranged as.
【００１１】９は固定鉄心であり、軸心方向Ｃから見
て、中央区画基準線Ｌに対して平行な方向に設けられ、
略直方体状であり、図１に示す如く（左右）端部に取付
用突片10, 10を有し、前記取付部材２の孔部13に挿入さ
れる（図示省略の）ボルト等にて固着される。また、こ
の固定鉄心９は、図２に示すように長円形又は楕円形の
電磁コイル11が嵌込まれる凹溝12が設けられている。即
ち、図１の上方から見て、長円形又は楕円形に凹溝12が
形成され、これに上記電磁コイル11が嵌込まれて固着さ
れる。Reference numeral 9 denotes a fixed iron core, which is provided in a direction parallel to the center section reference line L when viewed from the axial center direction C.
It has a substantially rectangular parallelepiped shape, and has mounting projections 10, 10 at its (left and right) ends as shown in FIG. 1, and is fixed by a bolt or the like (not shown) inserted into the hole 13 of the mounting member 2. Is done. The fixed iron core 9 is provided with a concave groove 12 into which an elliptical or elliptical electromagnetic coil 11 is fitted as shown in FIG. That is, when viewed from above in FIG. 1, a concave groove 12 is formed in an oval or elliptical shape, and the electromagnetic coil 11 is fitted and fixed in the concave groove 12.
【００１２】14は可動鉄心であり、矩形板（帯板片）の
形状であり、電磁コイル11が励磁されれば固定鉄心９に
吸着され、非励磁状態となれば固定鉄心９から（図１の
上方向へ）分離する。15, 15は、その分離の方向に、常
時弾発付勢するバネであり、図２に示した孔部16, 16内
にそのバネ15, 15は収納される。17, 17は上記バネ15,
15の弾発力調整ボルトを示す。Numeral 14 denotes a movable iron core, which has the shape of a rectangular plate (strip strip), which is attracted to the fixed iron core 9 when the electromagnetic coil 11 is excited, and from the fixed iron core 9 when it is not excited (FIG. 1). (Upward). Reference numerals 15 and 15 denote springs which constantly urge in the direction of their separation. The springs 15 and 15 are housed in the holes 16 and 16 shown in FIG. 17, 17 is the above spring 15,
Shows 15 resilient force adjustment bolts.
【００１３】18はブレーキシューであり、19は摩擦材
（ライニング材）であって直接にブレーキドラム１の内
周面１ａに、接触（摺接・圧接）自在である。ブレーキ
シュー18はカマボコ型であって、その外周曲面に摩擦材
19が張設されている。そして、ブレーキ取付部材２から
一体に突出部35…を（図例では４本）突設して、各々の
突出部35の周方向端面に、ブレーキシュー18の（ブレー
キドラム内周面１ａに沿っての周方向の）回転トルクを
受けるトルク受け面21を、形成する。Reference numeral 18 denotes a brake shoe, and reference numeral 19 denotes a friction material (lining material), which is capable of directly contacting (sliding and pressing) the inner peripheral surface 1a of the brake drum 1. The brake shoe 18 is of a kamaboko type and has a friction material on its outer peripheral curved surface.
19 are laid. (Four in the illustrated example) are integrally protruded from the brake mounting member 2, and each of the protrusions 35 is provided on the circumferential end face of the brake shoe 18 (along the inner circumferential surface 1 a of the brake drum). A torque receiving surface 21 for receiving the rotational torque (in all circumferential directions) is formed.
【００１４】そして、図１のように（図３の軸心方向Ｃ
から見て）トルク受け面21, 21は上記基準線Ｌに直交方
向であって、２個のトルク受け面21, 21は相互に平行で
あり、ブレーキシュー18は、内部拡張型の電磁ブレーキ
部として、ラジアル内方向から、ブレーキドラム内周面
１ａに圧接可能となる。As shown in FIG. 1 (in the axial direction C in FIG. 3)
The torque receiving surfaces 21 and 21 are orthogonal to the reference line L, the two torque receiving surfaces 21 and 21 are parallel to each other, and the brake shoe 18 is an internal expansion type electromagnetic brake unit. As a result, it is possible to press against the brake drum inner peripheral surface 1a from the radial inner direction.
【００１５】図１からも分るように、電磁石を構成する
固定鉄心９と可動鉄心14、及び、ブレーキシュー18は、
相互に平行に配置され、かつ、基準線Ｌに対しても平行
であるが、可動鉄心14の径方向外面と、ブレーキシュー
18の径方向内面との間を、２本の平行な連結部材23, 23
にて相互に連結されている。As can be seen from FIG. 1, the fixed iron core 9, the movable iron core 14, and the brake shoe 18, which constitute the electromagnet,
Although arranged parallel to each other and parallel to the reference line L, the radial outer surface of the movable iron core 14 and the brake shoe
18 between the two parallel connecting members 23, 23
Are connected to each other.
【００１６】即ち、２本の連結部材23, 23は基準線Ｌに
直交方向に配設されると共に、ブレーキシュー18の両端
近傍に配設され、かつ、この連結部材23の基端は可動鉄
心14に固着立設され、先端は、球面座Ｑと平面座Ｐを介
してブレーキシュー18に取付けられている。That is, the two connecting members 23, 23 are disposed in a direction orthogonal to the reference line L, and are disposed near both ends of the brake shoe 18, and the base end of the connecting member 23 is a movable iron core. The front end is attached to the brake shoe 18 via a spherical seat Q and a flat seat P.
【００１７】図５は図１の一部を拡大した要部説明図で
あるが、この図５と図１に示すように、連結部材23は具
体的には可動鉄心14のネジ孔24に螺進退調整自在に螺着
されるネジ部23ａを有し、かつ、ロックナット25も有
し、非制動状態に於けるブレーキシュー18の摩擦材19
と、ブレーキドラム内周面１ａとのギャップを調整する
隙間調整機能を備えている。FIG. 5 is an enlarged view of a main part of FIG. 1. As shown in FIGS. 5 and 1, the connecting member 23 is specifically screwed into the screw hole 24 of the movable iron core 14. It has a screw portion 23a which is screwed so as to be able to adjust forward and backward, and also has a lock nut 25, and the friction material 19 of the brake shoe 18 in the non-braking state.
And a gap adjusting function for adjusting a gap between the brake drum and the inner peripheral surface 1a of the brake drum.
【００１８】そして、26は、各連結部材23の先端を、球
面座Ｑ・平面座Ｐの圧接方向へ常時弾発付勢するための
弾発部材である。具体的には、ボルト27, 27にてブレー
キシュー18の内径側面（背面）に固着された板バネ片26
ａをもって、弾発部材を構成し、かつ、この板バネ片26
ａは図１と図５では折曲形成されているが、幅方向へは
ストレート状（一文字型横断面形状）とする。Reference numeral 26 denotes a resilient member for constantly urging the distal end of each connecting member 23 in the direction in which the spherical seat Q and the flat seat P are pressed against each other. Specifically, a leaf spring piece 26 fixed to the inner side surface (rear surface) of the brake shoe 18 with bolts 27, 27
a to form a resilient member, and this leaf spring piece 26
1a is bent in FIGS. 1 and 5, but has a straight shape (single-character cross-sectional shape) in the width direction.
【００１９】連結部材23の先端に、扁平状の頭部28を膨
出形成して、かつ、その頭部28の先端面を球面状とし
て、先端球面部29を設け、球面座Ｑの一部を構成する。
30は中間受け盤であり、内方面（背面）に凹球面部30ａ
を有し、この凹球面部30ａと、前記先端球面部29との摺
接にて、首振可能な継手───球面座Ｑ───を構成し
ている。At the distal end of the connecting member 23, a flat head 28 is formed to bulge, and the distal end surface of the head 28 is spherical, and a distal spherical portion 29 is provided. Is configured.
Reference numeral 30 denotes an intermediate receiving plate, and a concave spherical portion 30a is provided on the inner surface (rear surface).
The concave spherical portion 30a is slidably contacted with the distal spherical portion 29 to form a joint {Spherical seat Q} capable of swinging.
【００２０】また、ブレーキシュー18の内方面（背面）
には浅い凹窪部31を凹設して、その浅い凹窪部31の左右
前後寸法よりも 0.5mm〜 2.0mm（好ましくは 0.8mm〜
1.5mm）だけ小さな左右前後寸法とした中間受け盤30
を、嵌め込んで、図５の左右方向及び図５の紙面と直交
方向（前後方向）に、微小寸法スライド自在な平面座Ｐ
を、構成する。このように、図５（図１）の球面座Ｑ・
平面座Ｐは、極めてコンパクトに構成されていることが
分る。The inner surface (back surface) of the brake shoe 18
Is provided with a shallow concave portion 31, which is 0.5 mm-2.0 mm (preferably 0.8 mm-
Intermediate receiver 30 that is smaller by 1.5mm)
5 and a plane seat P capable of sliding by a small dimension in the left-right direction of FIG. 5 and the direction perpendicular to the paper surface of FIG.
Is composed. As described above, the spherical seat Q · in FIG.
It can be seen that the flat seat P is extremely compact.
【００２１】また、（扁平状の）頭部28の背面部分──
─基端側───を略円錐面部32とし、前述の板バネ片26
ａの先端を当接させる。このように、ブレーキシュー18
の背面に固着した板バネ片26ａの（幅方向にストレート
状の）先端を弾発的に当接させて、球面座Ｑ・平面座Ｐ
の圧接を行った構成により、球面座Ｑの首振り作用、及
び、平面座Ｐの二次元スライド作用を邪魔せず、円滑に
作動可能となる。The back portion of the (flat) head 28
The ─base end 端 is defined as a substantially conical surface portion 32, and
The tip of a is brought into contact. Thus, the brake shoe 18
The ends (of a straight shape in the width direction) of the leaf spring piece 26a fixed to the back surface of the spring are elastically brought into contact with each other, so that the spherical seat Q and the flat seat P
, The smooth operation can be performed without obstructing the swinging action of the spherical seat Q and the two-dimensional sliding action of the flat seat P.
【００２２】ところで、ブレーキ取付部材２は、図１と
図３及び（図１のＹ−Ｙ断面を示した）図４に示すよう
に、円形等の板状又は窓抜き板状若しくは枠型等の（取
付面３への）固着部２ａと、この固着部２ａから一体に
突設された略直方体（角棒体）の固定鉄心取付部２ｂ
と、をもって構成される。固定鉄心取付部２ｂに、軸受
６を嵌着する孔部５が形成されている。As shown in FIGS. 1 and 3 and FIG. 4 (showing a cross section taken along the line Y--Y in FIG. 1), the brake mounting member 2 has a plate shape such as a circular shape, a plate shape with a window, a frame shape, or the like. Fixing portion 2a (to the mounting surface 3) and a substantially rectangular parallelepiped (square rod) fixed iron mounting portion 2b integrally protruding from the fixing portion 2a.
And is constituted. A hole 5 into which the bearing 6 is fitted is formed in the fixed core mounting portion 2b.
【００２３】言い換えると、この取付部２ｂは、前記中
央区画基準線Ｌに沿って配設され、ブレーキドラム１内
へ干渉しないように（該ブレーキドラム１の内径よりも
短く設定されて）突入している。In other words, the mounting portion 2b is disposed along the center section reference line L, and protrudes into the brake drum 1 so as not to interfere (set to be shorter than the inner diameter of the brake drum 1). ing.
【００２４】トルク受け面21を有する前述の突出部35…
は、固着部２ａの表て面から突出状かつ一体に付設され
ている場合を示す。このようにすれば、突出部35は小さ
な寸法で済み、かつ、ブレーキシュー18から受ける力に
対して、力学的に（モーメントが小で）有利となる。The above-mentioned protrusions 35 having the torque receiving surface 21.
Indicates a case where the fixing portion 2a is provided integrally with and protruding from the front surface of the fixing portion 2a. In this way, the protrusion 35 has a small size, and is mechanically (small) advantageous to the force received from the brake shoe 18.
【００２５】以上の説明と図面から明らかとなるよう
に、本発明は軸心方向Ｃに薄型化を実現出来、しかも、
強力な制動力を発揮出来る内部拡張型のブレーキ装置で
ある。As will be apparent from the above description and the drawings, the present invention can realize a reduction in thickness in the axial center direction C.
This is an internal expansion type brake device that can exert strong braking power.
【００２６】そして、基本的作動は、（制動用の）バネ
15, 15にて、可動鉄心14、２本の連結部材23, 23、ブレ
ーキシュー18を径外方（ラジアル方向）に押圧して、摩
擦材19をブレーキドラム内周面１ａに押圧して制動状態
とする。他方、電磁コイル11を通電（ＯＮ状態）とする
ことで、可動鉄心14を吸着し、２本の連結部材23, 23等
を介してブレーキシュー18を径方向に引き寄せて、非制
動（解放）状態とする。なお、摩擦材19とブレーキドラ
ム内周面１ａとの間隙は、0.10mm〜0.20mmに設定するの
が望ましく（非制動状態）、本発明ではそのような極微
小間隙にすることが可能な構造である。即ち、板バネ片
26ａ（弾発部材26）によって、球面座Ｑ・平面座Ｐの接
触面部の遊隙を無くして（零として）いると共に、さら
に、調整ボルト（連結部材23, 23）を２本として回動方
向の間隙を均等化出来る構造を採用しているからであ
る。このように、本発明では、上記極微小間隙とするこ
とにより、ブレーキ作動音の極めて静かな装置を提供出
来、かつ、非作動時にはブレーキシュー18（摩擦材19）
の引きずり現象を無くすための、微妙な調整も、容易と
なった。And the basic operation is a spring (for braking)
At 15, 15, the movable iron core 14, the two connecting members 23, 23, and the brake shoe 18 are pressed radially outward (in the radial direction), and the friction material 19 is pressed against the brake drum inner peripheral surface 1a to perform braking. State. On the other hand, when the electromagnetic coil 11 is energized (ON state), the movable iron core 14 is attracted, and the brake shoe 18 is drawn in the radial direction via the two connecting members 23, 23, etc., so that non-braking (release) is performed. State. The gap between the friction material 19 and the inner peripheral surface 1a of the brake drum is desirably set to 0.10 mm to 0.20 mm (non-braking state). In the present invention, such a very small gap can be provided. It is. That is, a leaf spring piece
26a (resilient member 26) eliminates the clearance between the contact surfaces of the spherical seat Q and the flat seat P (zero), and further uses two adjustment bolts (connecting members 23, 23) to rotate in the rotational direction. This is because a structure that can equalize the gap between the two is adopted. As described above, according to the present invention, by setting the above-mentioned very small gap, a device with extremely low brake operation noise can be provided, and the brake shoe 18 (the friction material 19) can be provided when not operating.
Subtle adjustments to eliminate the drag phenomenon have become easier.
【００２７】そして、ブレーキ取付部材２の固着部２ａ
の表て面から、突設した突出部35…に、トルク受け面2
1, 21を形成して、ブレーキシュー18の両端（面）を受
持する構成としたので、軸心方向Ｃに極めてコンパクト
化を図ることが出来、軸心方向Ｃに狭小な箇所にも、収
容可能となる。即ち、図３の間隔寸法Ｗが極めて小さな
箇所（場所）にも、本発明に係るブレーキ装置ならば、
設置可能である。The fixing portion 2a of the brake mounting member 2
Of the torque receiving surface 2
Since both ends (surfaces) of the brake shoe 18 are received by forming the first and the second 21, it is possible to achieve a very compact structure in the axial direction C. It can be accommodated. That is, even in a place (place) where the interval dimension W in FIG.
Can be installed.
【００２８】また、板バネ片26ａの先端が（扁平）頭部
28の背面の略円錐面部32に当接する部分を、板バネ片26
ａの幅方向にはストレート状（横断面が弯曲しない一文
字型）としたため、球面座Ｑ・平面座Ｐの作動が（阻害
されずに）スムースに作動し、しかも、ブレーキドラム
内周面１ａに一旦当接したブレーキシュー18が、軸心平
行方向に対してブレーキ解放時にそのままの角度姿勢
で、平行移動し、ブレーキドラム内周面１ａとブレーキ
シュー18とが極微小かつ全面均一の等間隙となる。故
に、ブレーキ作動音が一層静かとなり、かつ、非制動時
のシューの引きずり現象をも一層有効防止出来る。The leaf spring piece 26a has a (flat) head end.
The portion of the rear surface of the plate 28 that contacts the substantially conical surface portion 32 is
In the width direction of a, a straight shape (one character type whose cross section is not curved) is used, so that the operation of the spherical seat Q and the flat seat P operates smoothly (without being hindered), and furthermore, the brake drum inner peripheral surface 1a The brake shoe 18 once contacted moves parallel to the axis parallel direction with the same angle posture when the brake is released, so that the inner peripheral surface 1a of the brake drum and the brake shoe 18 have an extremely small and uniform uniform gap over the entire surface. Become. Therefore, the brake operation sound becomes quieter, and the shoe drag phenomenon during non-braking can be more effectively prevented.
【００２９】本発明は巻上機等に好適な内部拡張型のブ
レーキ装置であるが、用途は限定されず、各面に応用自
由である。The present invention is an internal expansion type brake device suitable for a hoisting machine or the like, but the application is not limited and can be freely applied to each surface.
【００３０】[0030]
【発明の効果】本発明は上述の構成により、次のような
著大な効果を奏する。The present invention has the following remarkable effects by the above-mentioned structure.
【００３１】（請求項１によれば、）巻上機等のブレー
キ装置として、軸心方向Ｃに狭小な場所にもコンパクト
に設置出来る。即ち、軸心方向Ｃに薄いブレーキドラム
１内に、電磁ブレーキ部８，８を収納可能となった。(According to claim 1) As a brake device for a hoisting machine or the like, it can be compactly installed even in a narrow space in the axial direction C. That is, the electromagnetic brake portions 8 can be stored in the brake drum 1 which is thin in the axial direction C.
【００３２】また、ブレーキシュー18に作用するタンジ
ェントフォース（制動時に回動方向に作用する回転トル
ク）を確実に受持出来る。しかも、可動鉄心14の左右長
さ寸法等を増加出来るので、（全体がコンパクトであり
ながらも、）十分に強力な電磁石の出力が得られる。Further, it is possible to reliably receive a tangential force acting on the brake shoe 18 (a rotational torque acting in the turning direction during braking). In addition, since the left and right length dimensions of the movable iron core 14 can be increased, a sufficiently powerful output of the electromagnet can be obtained (although the whole is compact).
【００３３】（請求項１，２によれば、）ブレーキドラ
ム内周面１ａとブレーキシュー18とが、微小かつ全面均
一な等間隙に調整容易となり、作動音を低減出来て、極
めて静粛作動となる。（請求項３によれば、）構造簡素
化を図り得る。そして一層作動音を低減した静粛ブレー
キ作動を実現出来る。[0033] According to the first and second aspects, the inner circumferential surface 1a of the brake drum and the brake shoe 18 can be easily adjusted to have a small and uniform uniform clearance, and the operating noise can be reduced, resulting in extremely quiet operation. Become. According to the third aspect, the structure can be simplified. And the silent brake operation with further reduced operating noise can be realized.
【図１】本発明の実施の一形態を示す一部断面正面図で
ある。FIG. 1 is a partially sectional front view showing an embodiment of the present invention.
【図２】要部の平面説明図である。FIG. 2 is an explanatory plan view of a main part.
【図３】要部断面側面図である。FIG. 3 is a sectional side view of a main part.
【図４】図１のＹ−Ｙ断面図である。FIG. 4 is a sectional view taken along line YY of FIG. 1;
【図５】図１の要部拡大図である。FIG. 5 is an enlarged view of a main part of FIG. 1;
１ ブレーキドラム １ａ （ブレーキドラム）内周面 ２ ブレーキ取付部材 ２ａ 固着部 ８ 電磁ブレーキ部 ９ 固定鉄心 14 可動鉄心 18 ブレーキシュー 21 トルク受け面 23 連結部材 26 弾発部材 26ａ 板バネ片 28 頭部 29 先端球面部 35 突出部 Ｃ 軸心方向 Ｌ 中央区画基準線 Ｐ 平面座 Ｑ 球面座 DESCRIPTION OF SYMBOLS 1 Brake drum 1a (Brake drum) inner peripheral surface 2 Brake mounting member 2a Fixed part 8 Electromagnetic brake part 9 Fixed iron core 14 Movable iron core 18 Brake shoe 21 Torque receiving surface 23 Connecting member 26 Resilient member 26a Leaf spring piece 28 Head 29 Tip spherical part 35 Projection part C axis direction L Center division reference line P Plane seat Q Spherical seat
フロントページの続き Ｆターム(参考） 3J058 AA03 AA07 AA13 AA17 AA24 AA30 AA38 AA39 BA67 CA01 CC07 CC13 CC72 CC73 CC77 FA39 Continued on the front page F term (reference) 3J058 AA03 AA07 AA13 AA17 AA24 AA30 AA38 AA39 BA67 CA01 CC07 CC13 CC72 CC73 CC77 FA39
Claims (3)
電磁ブレーキ部を 180°反対位置に内蔵した内部拡張型
のブレーキ装置に於て、上記各電磁ブレーキ部の電磁石
の可動鉄心と、上記ブレーキドラム内周面に当接可能に
配設されたブレーキシューとの間を、２本の平行な連結
部材にて連結し、該２本の連結部材は上記ブレーキシュ
ーの両端近傍に配設され、かつ、該各連結部材の基端は
可動鉄心に固着立設され、先端は、球面座と平面座を介
して上記ブレーキシューに取付けられ、さらに、上記ブ
レーキシューの両端を受けるトルク受け面を、ブレーキ
取付部材と一体状の突出部に、形成したことを特徴とす
るブレーキ装置。In an internal expansion type brake device in which a pair of electromagnetic brake portions are built in opposite positions of 180 ° corresponding to the inner peripheral surface of a brake drum, a movable iron core of an electromagnet of each of the electromagnetic brake portions; Two parallel connecting members are connected between the brake shoe and a brake shoe disposed so as to be in contact with the inner peripheral surface of the brake drum. The two connecting members are disposed near both ends of the brake shoe. And, the base end of each of the connecting members is fixedly erected on the movable iron core, the front end is attached to the brake shoe via a spherical seat and a flat seat, and further has a torque receiving surface for receiving both ends of the brake shoe. A brake device, wherein the brake device is formed on a protruding portion integral with a brake mounting member.
整自在に螺着され、かつ、該各連結部材の先端を、球面
座・平面座の圧接方向へ常時弾発付勢するための弾発部
材が、付設されている請求項１記載のブレーキ装置。2. A base end of each connecting member is screwed to a movable iron core so as to be capable of being advanced and retracted, and a distal end of each connecting member is constantly resiliently urged in a pressing direction of a spherical seat and a flat seat. The brake device according to claim 1, wherein the resilient member is provided.
該頭部の先端球面部によって上記球面座の一部を構成
し、かつ、該頭部の背面部分を略円錐面部とし、さら
に、上記弾発部材を板バネ片としてブレーキシューの背
面に固着すると共に、上記略円錐面部に上記板バネ片の
先端を当接させた請求項２記載のブレーキ装置。3. A swelling head is formed at the tip of the connecting member,
A part of the spherical seat is constituted by a tip spherical part of the head, and a rear part of the head is substantially a conical surface part. Further, the resilient member is fixed to a rear surface of the brake shoe as a leaf spring piece. 3. The brake device according to claim 2, wherein the distal end of the leaf spring piece abuts on the substantially conical surface portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001108685A JP4024487B2 (en) | 2001-04-06 | 2001-04-06 | Brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001108685A JP4024487B2 (en) | 2001-04-06 | 2001-04-06 | Brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002303341A true JP2002303341A (en) | 2002-10-18 |
| JP4024487B2 JP4024487B2 (en) | 2007-12-19 |
Family
ID=18960775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001108685A Expired - Lifetime JP4024487B2 (en) | 2001-04-06 | 2001-04-06 | Brake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4024487B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7073640B2 (en) | 2003-06-27 | 2006-07-11 | Mitsubishi Denki Kabushiki Kaisha | Brake structure of traction machine |
| KR100823147B1 (en) | 2007-08-27 | 2008-04-21 | 한국기계부품(주) | An elevator for a brake device |
| JP2009067488A (en) * | 2007-09-11 | 2009-04-02 | Mitsubishi Electric Corp | Brake device for hoisting machine |
| JP2009115181A (en) * | 2007-11-06 | 2009-05-28 | Mitsubishi Electric Corp | Brake device |
| CN104370238A (en) * | 2014-11-26 | 2015-02-25 | 成都瑞迪机械实业有限公司 | Disc brake |
| CN104868685A (en) * | 2015-05-25 | 2015-08-26 | 湖州鸿远电机有限公司 | Brushless alternating current motor structure |
| CN104868686B (en) * | 2015-05-25 | 2017-05-10 | 湖州鸿远电机有限公司 | Rapid direct-current brushless motor structure |
-
2001
- 2001-04-06 JP JP2001108685A patent/JP4024487B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7073640B2 (en) | 2003-06-27 | 2006-07-11 | Mitsubishi Denki Kabushiki Kaisha | Brake structure of traction machine |
| CN1322248C (en) * | 2003-06-27 | 2007-06-20 | 三菱电机株式会社 | Braking device structure for lifter |
| DE102004030830B4 (en) * | 2003-06-27 | 2009-07-23 | Mitsubishi Denki K.K. | Brake assembly for a traction machine |
| KR100823147B1 (en) | 2007-08-27 | 2008-04-21 | 한국기계부품(주) | An elevator for a brake device |
| JP2009067488A (en) * | 2007-09-11 | 2009-04-02 | Mitsubishi Electric Corp | Brake device for hoisting machine |
| JP2009115181A (en) * | 2007-11-06 | 2009-05-28 | Mitsubishi Electric Corp | Brake device |
| CN104370238A (en) * | 2014-11-26 | 2015-02-25 | 成都瑞迪机械实业有限公司 | Disc brake |
| CN104868685A (en) * | 2015-05-25 | 2015-08-26 | 湖州鸿远电机有限公司 | Brushless alternating current motor structure |
| CN104868686B (en) * | 2015-05-25 | 2017-05-10 | 湖州鸿远电机有限公司 | Rapid direct-current brushless motor structure |
| CN104868685B (en) * | 2015-05-25 | 2017-08-04 | 湖州鸿远电机有限公司 | A kind of brushless AC motor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4024487B2 (en) | 2007-12-19 |
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