JP3137799U

JP3137799U - Shaft coupling

Info

Publication number: JP3137799U
Application number: JP2007004439U
Authority: JP
Inventors: 稔中村
Original assignee: 稔中村
Priority date: 2007-05-15
Filing date: 2007-05-15
Publication date: 2007-12-13
Anticipated expiration: 2017-05-15

Abstract

【課題】従来、軸と軸を連結する軸継ぎ手に於いて、軸と軸継ぎ手を固定するのに軸穴を二分する切割溝を両端面から同じ位相で刻設し、軸穴が狭まる方向にボルトを締めて固定しているが、ボルトを締め付けるのに大きな力を要している。
【解決手段】切割溝１４を両端から９０度位相を変えて刻設し、溝の終端を反対面の近くにまで深く刻設する。
【選択図】図２[PROBLEMS] Conventionally, in a shaft joint for connecting a shaft and a shaft, a split groove that bisects the shaft hole is engraved from both end surfaces to fix the shaft and the shaft joint in the same direction so that the shaft hole narrows. The bolts are fastened and fixed, but a large force is required to tighten the bolts.
A slicing groove 14 is engraved with a phase difference of 90 degrees from both ends, and the end of the groove is engraved deeply near the opposite surface.
[Selection] Figure 2

Description

軸芯を同一とする２軸（例えばモーター軸とボールネジ軸）を連結する一体部材で形成する軸継ぎ手に関する。The present invention relates to a shaft joint formed by an integral member that connects two shafts having the same shaft core (for example, a motor shaft and a ball screw shaft).

（図１参照）従来、軸と軸を連結する軸継ぎ手１に於いて、軸と軸継ぎ手を固定するのに軸穴を二分する切割溝２を両端面から同じ位相で刻設し、軸穴が狭まる方向にボルト３を締めて固定している。さらに材料が変形しやすい様に円周方向に切割溝４を設けたりしている。(Refer to FIG. 1) Conventionally, in a shaft joint 1 that connects a shaft and a shaft, a slit groove 2 that bisects the shaft hole to fix the shaft and the shaft joint is engraved in the same phase from both end faces. The bolt 3 is tightened and fixed in the direction in which the angle is reduced. Further, a slit groove 4 is provided in the circumferential direction so that the material is easily deformed.

Task

切割溝２のみの場合変形量が小さく、固定するボルトの大きな締付力を必要とし、ボルトの頭が潰れて分解できないことがある。切割溝４を設ける場合は軽く締め付けられるが、加工費が高くなる。In the case of only the slit groove 2, the amount of deformation is small, requiring a large tightening force of the bolt to be fixed, and the head of the bolt may be crushed and cannot be disassembled. When the cut groove 4 is provided, it is lightly tightened, but the processing cost is increased.

Solution

切割溝２を両端から９０度位相を変えて刻設し、溝の終端を反対面の近くまで深く刻設する。The slit groove 2 is engraved by changing the phase by 90 degrees from both ends, and the end of the groove is deeply engraved near the opposite surface.

軸継ぎ手１１は一体部材で形成し、軸心に穴１２、１３を貫通さし、切割溝１４を軸心に左端面から右端面近くまで刻設する。切割溝１４とは９０度位相を変えて切割溝１５を軸心に右端面から左端面近くまで刻設する。The shaft joint 11 is formed as an integral member, penetrates the holes 12 and 13 in the shaft center, and the cut groove 14 is cut from the left end surface to the vicinity of the right end surface in the shaft center. The phase of the slit groove 14 is changed by 90 degrees, and the slit groove 15 is carved from the right end surface to the vicinity of the left end surface with the axis as the axis.

切割溝１４と直角に固定ボルト１６、１７を左端面側に設置する。切割溝１５と直角に固定ボルト１８、１９を右端面側に設置する。Fixing bolts 16 and 17 are installed on the left end face side at right angles to the slit groove 14. Fixing bolts 18 and 19 are installed on the right end face side at right angles to the cutting groove 15.

穴１２、１３にそれぞれ連結対象軸を挿入し固定ボルト１６、１７或は固定ボルト１８、１９を締めると挿入した軸を圧接固定できる。Inserting the shafts to be coupled into the holes 12 and 13 and tightening the fixing bolts 16 and 17 or the fixing bolts 18 and 19, respectively, allows the inserted shafts to be pressed and fixed.

effect

切割溝１４と切割溝１５は９０度位相を変えることにより長く形成でき、固定ボルト１６、１７或は固定ボルト１８、１９を締めたとき、締め付け力に対して変形量が大きいから軽い締め付け力で挿入した軸を圧接固定できる。分解時も軽い力でボルトを緩めることが出来る。ボルトのレンチ用穴の損耗を少なく出来る。The slit groove 14 and the slit groove 15 can be formed long by changing the phase by 90 degrees, and when the fixing bolts 16 and 17 or the fixing bolts 18 and 19 are tightened, the deformation amount is large with respect to the tightening force, so that the light tightening force is small. The inserted shaft can be fixed by pressure. Bolts can be loosened with a light force even during disassembly. The wear of the bolt wrench hole can be reduced.

切割溝１４或は切割溝１５の形状寸法は全く同じであるから、従来品の切割溝４より加工費が安くなるSince the shape and dimensions of the cutting groove 14 or the cutting groove 15 are exactly the same, the processing cost is lower than that of the conventional cutting groove 4.

変形量が大きいことは部材の柔軟性が大きいことであるから、連結対象軸の振れを吸収しやすい効果がある。部材の中央部外径を削り込むとさらに柔軟性が増す。A large amount of deformation means that the flexibility of the member is large, so that there is an effect that it is easy to absorb the deflection of the connection target shaft. When the outer diameter of the central part of the member is cut, the flexibility is further increased.

変形量が大きいことは、外径方向へも同じ作用があるので穴用継ぎ手として形成できる。A large amount of deformation has the same effect in the outer diameter direction, so that it can be formed as a hole joint.

固定ボルトは左右で干渉しないぎりぎりの位置に設置できるので継ぎ手長さを短く形成できる。Since the fixing bolt can be installed at the position where it does not interfere on the left and right, the joint length can be shortened.

継ぎ手２１は左側を軸継ぎ手２２、右側を穴継ぎ手２３とする。軸継ぎ手２２は実施例１の左側と同じ構成とする。右側の穴継ぎ手２３は軸継ぎ手２２より少し外径を大きくし、連結対象穴と嵌合するよう精密に形成し切割溝２４も実施例１と同様に形成する。右端面より軸芯にテーパーネジ穴２５を刻設し、テーパーボルト２６を挿入する。The joint 21 has a shaft joint 22 on the left side and a hole joint 23 on the right side. The shaft joint 22 has the same configuration as the left side of the first embodiment. The right hole joint 23 has a slightly larger outer diameter than the shaft joint 22 and is precisely formed so as to be fitted to the connection target hole, and the slit groove 24 is formed in the same manner as in the first embodiment. A taper screw hole 25 is cut in the shaft center from the right end surface, and a taper bolt 26 is inserted.

右側の穴継ぎ手２３を連結対象穴に挿入しテーパーボルト２６をねじ込むと外径が増大し挿入穴を圧接固定する。When the right hole joint 23 is inserted into the connection target hole and the taper bolt 26 is screwed in, the outer diameter increases and the insertion hole is pressure-fixed.

effect

軸と軸、軸と穴、穴と穴の組み合わせの継ぎ手が提供できる。Joints of shaft-shaft, shaft-hole, and hole-hole combinations can be provided.

テーパーボルト２６でなく、内径をテーパー穴としボールを打ち込んで固定する方式も提供できる。Instead of the taper bolt 26, it is also possible to provide a method in which the inner diameter is a taper hole and a ball is driven and fixed.

穴継ぎ手２３の外形の一部に欠損部２７を設けて、連結対象穴との接触点２８を分散さし、偏芯を小さくする。A defect portion 27 is provided in a part of the outer shape of the hole joint 23 to disperse the contact points 28 with the connection target holes, thereby reducing the eccentricity.

本考案の継ぎ手を使用して構成する回転機構。A rotating mechanism constructed using the joint of the present invention.

回転機構３０は、モーター３１の回転を回転軸３２に伝える回転機構。回転軸３２はベアリング３３により本体３９に回転自在に軸支され、回転軸３２の中央穴３４内に実施例２の軸と穴を連結する継ぎ手３５を設置し、モーター軸３６と中央穴３４とを連結し、モーター３１の回転を回転軸３２に伝える。The rotation mechanism 30 is a rotation mechanism that transmits the rotation of the motor 31 to the rotation shaft 32. The rotary shaft 32 is rotatably supported on the main body 39 by a bearing 33, and a joint 35 for connecting the shaft and the hole of the second embodiment is installed in the central hole 34 of the rotary shaft 32. And the rotation of the motor 31 is transmitted to the rotation shaft 32.

effect

回転軸３２の軸方向長さの内にモーター軸３６と継ぎ手３５を内蔵でき、回転機構３０を小型化できる。The motor shaft 36 and the joint 35 can be incorporated within the axial length of the rotating shaft 32, and the rotating mechanism 30 can be downsized.

中央穴３４と継ぎ手３５の連結、解除のためのテーパーボルト３７の操作が外部より可能なので、組み立て、分解、保守が容易である。Since operation of the taper bolt 37 for connecting and releasing the central hole 34 and the joint 35 is possible from the outside, assembly, disassembly and maintenance are easy.

回転機構３０の軸方向長さを短くできるので、平面設置の回転テーブルとするとき高さの低いコンパクトな装置を提供できる。Since the axial length of the rotation mechanism 30 can be shortened, a compact device with a low height can be provided when a rotary table is installed on a plane.

従来品の軸継ぎ手１の立体図 Three-dimensional view of conventional shaft joint 1 実施例１の軸継ぎ手１１の立体図 Three-dimensional view of the shaft joint 11 according to the first embodiment. 実施例２の継ぎ手２１の立体図 Three-dimensional view of the joint 21 according to the second embodiment. 実施例２の穴継ぎ手２３の側面図 Side view of the hole joint 23 according to the second embodiment. 実施例３の回転機構の断面図 Sectional drawing of the rotation mechanism of Example 3

Explanation of symbols

１：軸継ぎ手２：切割溝３：ボルト４：切割溝１１：軸継ぎ手
１２：穴１４：切割溝１６：ボルト２１：継ぎ手
３０：回転機構1: Shaft joint 2: Cutting groove 3: Bolt 4: Cutting groove 11: Shaft joint 12: Hole 14: Cutting groove 16: Bolt 21: Joint 30: Rotating mechanism

Claims

A joint characterized in that it is formed of an integral member, the cut groove 2 is cut by 90 degrees from both ends, and the end of the groove is deeply cut close to the opposite surface.

A rotating mechanism characterized in that a joint 35 for connecting the shaft and the hole of the second embodiment is installed in the central hole of the rotating shaft.