JPH0154278B2 - - Google Patents
Info
- Publication number
- JPH0154278B2 JPH0154278B2 JP5820584A JP5820584A JPH0154278B2 JP H0154278 B2 JPH0154278 B2 JP H0154278B2 JP 5820584 A JP5820584 A JP 5820584A JP 5820584 A JP5820584 A JP 5820584A JP H0154278 B2 JPH0154278 B2 JP H0154278B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- drum
- hole
- joint
- plate
- 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.)
- Expired
Links
- 239000003638 chemical reducing agent Substances 0.000 description 11
- 238000004804 winding Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Jib Cranes (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はクレーンの巻き上げ用等のロープを巻
取るドラムとその駆動軸との間に配置する軸継手
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a shaft coupling disposed between a drum for winding up a rope for hoisting a crane and the drive shaft thereof.
クレーンの巻上装置は特開昭54−15262号公報、
特開昭54−29463号公報、実開昭56−10480号公報
に示す如く、モータ、減速機、ロープを巻取るド
ラム等からなる。減速機の一端側に軸継手を介し
てモータが連結され、減速機の他端側にドラムの
一端が軸継手を介して連結され、ドラムの他端は
軸受で支持されている。
The hoisting device of the crane is disclosed in Japanese Patent Application Laid-open No. 15262/1983.
As shown in Japanese Unexamined Patent Publication No. 54-29463 and Japanese Utility Model Application No. 56-10480, it consists of a motor, a speed reducer, a drum for winding the rope, etc. A motor is connected to one end of the reducer via a shaft joint, one end of a drum is connected to the other end of the reducer via a shaft joint, and the other end of the drum is supported by a bearing.
ドラムと減速機とを連結する軸継手は、ドラム
を回転させるトルクと、ロープの引張力によるせ
ん断力に耐えなければならない。またロープから
伝達される力によつてドラムの軸が減速機の軸に
対して傾斜するので、この角度変化を前記継手で
許容することが必要である。 The shaft joint that connects the drum and the reducer must withstand the torque that rotates the drum and the shearing force caused by the tensile force of the rope. Further, since the axis of the drum is inclined with respect to the axis of the reducer due to the force transmitted from the rope, it is necessary to allow this angle change with the joint.
本発明の目的はドラムの角度変化を許容できる
軸継手を安価に提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive shaft joint that can accommodate changes in the angle of the drum.
本発明は、駆動軸の円周上にドラム側に向けて
トルク伝達用の複数のピンを設け、このピンに対
向するドラムの鏡板の穴とピンを弾性体を介して
結合し、また軸端を緩いはめあいで鏡板の穴に挿
入したものである。
The present invention provides a plurality of pins for torque transmission on the circumference of the drive shaft toward the drum side, connects the pins with holes in the end plate of the drum facing the pins via an elastic body, and also is inserted into the hole in the head plate with a loose fit.
以下、本発明の一実施例を第１図、第２図によ
り説明する。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第１図は、本ドラム軸継手を含む巻上装置系の
平面図を示す。モータ１ａと１ｂの後側にはブレ
ーキ２ａと２ｂが接続されており、前側は継手３
ａと３ｂを介して減速機４に接続されている。減
速機４とその両側に配置されたロープ巻取用のド
ラム５ａと５ｂとは本発明のドラム継手６ａと６
ｂを介して接続されている。 FIG. 1 shows a plan view of a hoist system including the present drum shaft joint. Brakes 2a and 2b are connected to the rear sides of the motors 1a and 1b, and a joint 3 is connected to the front side of the motors 1a and 1b.
It is connected to the speed reducer 4 via a and 3b. The reducer 4 and the rope winding drums 5a and 5b arranged on both sides thereof are connected to drum joints 6a and 6 of the present invention.
connected via b.
第２図は、このドラム軸継手６ａと６ｂの断面
図を示す。減速機４より軸受７を介して突き出し
た軸８の端部にはキー溝９が付けられ、キー１０
を介して回転板１１を固定している。回転板１１
の円周上には複数本のピン１２がドラム軸８に平
行に固定され、ドラム側に突き出している。回転
板１１はボスとフランジ部からなり、フランジ部
にピン１２を設けている。 FIG. 2 shows a sectional view of the drum shaft joints 6a and 6b. A key groove 9 is attached to the end of the shaft 8 that protrudes from the reducer 4 through the bearing 7, and a key 10 is attached to the end of the shaft 8.
The rotary plate 11 is fixed via. Rotating plate 11
A plurality of pins 12 are fixed on the circumference in parallel to the drum shaft 8 and protrude toward the drum side. The rotary plate 11 consists of a boss and a flange, and a pin 12 is provided in the flange.
一方、ドラム５ａ，５ｂのシエル１５の減速機
４側の端部にはフランジ１６が取り付けられ、円
周上に配置された複数本のボルト１７によりドラ
ムの鏡板１８を結合している。鏡板１８の減速機
４側には継手板１９を溶接によつて同芯上に固定
している。継手板１９にはピン１２に対応する位
置に穴１９ａを複数個設けている。この穴１９ａ
にはピン１２に係合する弾性体からなる円筒状の
ブツシユ２０を挿入している。ピン１２はブツシ
ユ２０内に挿入してある。また継手板１９の軸心
部には軸８の端部が入る穴１９ｂを設けている。
穴１９ｂの径は軸８の径よりも大きいが、あまり
大きくない。穴１９ｂの径は次の二つの条件を満
足するように構成されている。１、後述するよう
に、ロープによる力によつてドラム５ａ，５ｂの
軸心が軸８に傾斜した場合に穴１９ｂの内面が軸
８の外面に接触しない径である。２、後述するよ
うに、ドラム５ａ，５ｂにせん断力が作用した場
合に、穴１９ｂが軸８に接触することができる大
きさである。鏡板１８と軸８、継手板１９とピン
１２とは接触していない。また継手板１９の厚さ
はあまり大きくない。特に穴１９ｂの厚さは厚く
ない。 On the other hand, a flange 16 is attached to the end of the shell 15 of the drums 5a, 5b on the reducer 4 side, and the end plate 18 of the drum is connected by a plurality of bolts 17 arranged on the circumference. A joint plate 19 is concentrically fixed to the end plate 18 on the reducer 4 side by welding. A plurality of holes 19a are provided in the joint plate 19 at positions corresponding to the pins 12. This hole 19a
A cylindrical bush 20 made of an elastic body that engages with the pin 12 is inserted in the holder. Pin 12 is inserted into bush 20. Further, a hole 19b into which the end of the shaft 8 is inserted is provided in the axial center of the joint plate 19.
The diameter of the hole 19b is larger than the diameter of the shaft 8, but not very large. The diameter of the hole 19b is configured to satisfy the following two conditions. 1. As will be described later, the diameter is such that the inner surface of the hole 19b does not come into contact with the outer surface of the shaft 8 when the axes of the drums 5a, 5b are inclined toward the shaft 8 due to the force exerted by the rope. 2. As will be described later, the hole 19b is large enough to come into contact with the shaft 8 when a shearing force is applied to the drums 5a, 5b. The end plate 18 and the shaft 8 are not in contact with each other, and the joint plate 19 and the pin 12 are not in contact with each other. Further, the thickness of the joint plate 19 is not very large. In particular, the thickness of the hole 19b is not thick.
かかる構成において、軸８を伝わつたトルク
は、キー１０−回転板１１−ピン１２−ブツシユ
２０−継手板１９−鏡板１８−ボルト１７−フラ
ンジ１６を介してドラムのシエル１５に伝えられ
る。複数のピン１２には均等に力が加わる。 In this configuration, the torque transmitted through the shaft 8 is transmitted to the shell 15 of the drum via the key 10, the rotary plate 11, the pin 12, the bush 20, the joint plate 19, the end plate 18, the bolt 17, and the flange 16. Force is applied equally to the plurality of pins 12.
ロープによる力によつてドラム５ａ，５ｂの軸
心が軸８に対して傾斜すると、つまり角度が変化
すると、穴１９ｂと軸８との間に〓間があり、ま
た穴１９ａとピン１２との間には弾性体のブツシ
ユ２０があるので、この傾斜を許容することがで
きる。 When the axes of the drums 5a and 5b are tilted with respect to the shaft 8 due to the force exerted by the rope, that is, when the angle changes, there is a gap between the hole 19b and the shaft 8, and there is also a gap between the hole 19a and the pin 12. Since there is an elastic bushing 20 between them, this inclination can be tolerated.
ロープからドラム５ａ，５ｂに伝えられたラジ
アル方向の力（つまり、せん断力）は、ブツシユ
２０の変形によつて穴１９ｂが軸８に接するの
で、継手板１９から軸８に直接伝えられる。この
ため、ピン１２及びブツシユ２０に過大な力が加
わらないので、ピン１２を小さくでき、ブツシユ
２０の破損を妨止できるものである。 The radial force (that is, shear force) transmitted from the rope to the drums 5a, 5b is directly transmitted from the joint plate 19 to the shaft 8 because the hole 19b comes into contact with the shaft 8 due to the deformation of the bush 20. Therefore, excessive force is not applied to the pin 12 and the bush 20, so the pin 12 can be made smaller and damage to the bush 20 can be prevented.
このため、ドラム５ａ，５ｂの角度変化に対し
てフレキシビリテイを持たせることができると同
時に、大きなトルクとせん断力をとれる継手を提
供できるものである。 Therefore, it is possible to provide a joint that can have flexibility with respect to angular changes of the drums 5a and 5b, and at the same time can take large torque and shear force.
また、トルクを伝える部材はピン１２、ブツシ
ユ２０、穴１９ａを有する継手板１９であり、円
形であるので、正確にかつ容易に製作でき、安価
にできるものである。 Further, the members for transmitting torque are the pin 12, the bush 20, and the joint plate 19 having the hole 19a, and since they are circular, they can be manufactured accurately and easily, and at low cost.
継手板と鏡板とは同一部材でもよい。 The joint plate and the end plate may be the same member.
ブツシユ２０はピン１２に取付けて穴１９ａに
挿入してもよい。 The bush 20 may be attached to the pin 12 and inserted into the hole 19a.
以上の如く本発明によれば、トルク力を受ける
部分とせん断力を受ける部分とを分割したので、
ドラムの角度変化を許容でき、大きな力を伝達で
きる軸継手を安価に提供できるものである。
As described above, according to the present invention, since the part receiving torque force and the part receiving shear force are divided,
It is possible to provide an inexpensive shaft joint that can tolerate changes in the angle of the drum and can transmit a large amount of force.
第１図は本発明のドラム軸継手が用いられる巻
上装置の平面図、第２図は第１図の一実施例のド
ラム軸継手部の詳細断面図である。
４……減速機、５ａ，５ｂ……ドラム、６ａ，
６ｂ……ドラム継手、８……軸、１０……キー、
１１……回転板、１２……ピン、１５……シエ
ル、１６……フランジ、１７……ボルト、１８…
…鏡板、１９……継手板、１９ａ，１９ｂ……
穴、……弾性体のブツシユ。
FIG. 1 is a plan view of a hoisting device in which the drum shaft joint of the present invention is used, and FIG. 2 is a detailed sectional view of the drum shaft joint portion of one embodiment of FIG. 1. 4...Reducer, 5a, 5b...Drum, 6a,
6b...Drum joint, 8...Shaft, 10...Key,
11... Rotating plate, 12... Pin, 15... Shell, 16... Flange, 17... Bolt, 18...
...End plate, 19...Joint plate, 19a, 19b...
A hole...a bump in the elastic material.
Claims (1)
に開口する第１の穴を設け、その円周上に駆動軸
側に開口する複数の第２の穴を設け、第１の穴よ
りも小径に設けた駆動軸の端部を第１の穴内に配
置し、駆動軸の端部よりも駆動源側の軸に固定し
た回転板の円周上にそれぞれの第２の穴に入る複
数のピンを設け、それぞれのピンとそれぞれの第
２の穴との間に弾性体からなるブツシユを配置し
ていることを特徴とするドラムの軸継手。1. A first hole that opens toward the drive shaft is provided in the center of the end plate of the drum on the drive shaft side, and a plurality of second holes that open toward the drive shaft are provided on the circumference of the first hole. The end of the drive shaft, which is provided with a small diameter, is placed in the first hole, and the plurality of holes are inserted into the respective second holes on the circumference of a rotating plate fixed to the shaft closer to the drive source than the end of the drive shaft. What is claimed is: 1. A shaft joint for a drum, characterized in that a bushing made of an elastic body is disposed between each pin and each second hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5820584A JPS60202089A (en) | 1984-03-28 | 1984-03-28 | Shaft coupling for drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5820584A JPS60202089A (en) | 1984-03-28 | 1984-03-28 | Shaft coupling for drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60202089A JPS60202089A (en) | 1985-10-12 |
| JPH0154278B2 true JPH0154278B2 (en) | 1989-11-17 |
Family
ID=13077530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5820584A Granted JPS60202089A (en) | 1984-03-28 | 1984-03-28 | Shaft coupling for drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60202089A (en) |
-
1984
- 1984-03-28 JP JP5820584A patent/JPS60202089A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60202089A (en) | 1985-10-12 |
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