JP2006258197A - Rotor-to-rotating shaft fastening structure - Google Patents

Rotor-to-rotating shaft fastening structure Download PDF

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JP2006258197A
JP2006258197A JP2005076754A JP2005076754A JP2006258197A JP 2006258197 A JP2006258197 A JP 2006258197A JP 2005076754 A JP2005076754 A JP 2005076754A JP 2005076754 A JP2005076754 A JP 2005076754A JP 2006258197 A JP2006258197 A JP 2006258197A
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rotating shaft
rotating body
rotating
tip
shaft
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JP2006258197A5 (en
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Yoichi Aoyama
洋一 青山
Taichi Onozuka
太一 小野塚
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Sanden Corp
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Sanden Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotor-to-rotating shaft fastening structure, in which fastening between a rotor and a rotating shaft is not loosened even when torque added to the rotor fluctuates. <P>SOLUTION: In a boss part of the rotor, a through hole comprising a large diameter part, and a small diameter part to be eccentric to the large diameter part, and extend parallel to the large diameter part are formed. On a tip part of the rotating shaft, a columnar protrusion of smaller diameter than the rotating shaft is formed to be eccentric to the rotating shaft, and extend in parallel to the rotating shaft. The tip of the rotating shaft is engaged with the large diameter part of the through hole formed in the boss part. The columnar protrusion penetrates the small diameter part of the through hole. A coming-off preventing member is engaged with a tip part of the columnar protrusion that is projected from an end surface of the boss part of the rotor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、回転体と回転軸との締結構造に関するものである。   The present invention relates to a fastening structure between a rotating body and a rotating shaft.

回転体ボス部が回転軸先端近傍部とスプライン結合し、回転体ボス部を貫通して回転体ボス部の端面から突出する回転軸先端小径部にナットが螺合してナットの座面が回転体ボス部の端面に当接することを特徴とする回転体と回転軸との締結構造と当該締結構造を備える動力伝達機構とが特許文献１等に開示されている。
特許文献１の回転体と回転軸との締結構造においては、ナットに螺合する回転軸先端小径部は回転軸と同軸に延在している。
実開平５−０１２７６４ The rotating body boss part is spline-coupled with the vicinity of the rotating shaft tip, and the nut is screwed into the small diameter portion of the rotating shaft tip that penetrates the rotating body boss part and protrudes from the end surface of the rotating body boss part, and the seat surface of the nut rotates. Patent Document 1 discloses a fastening structure between a rotating body and a rotating shaft, which is in contact with an end surface of a body boss portion, and a power transmission mechanism including the fastening structure.
In the fastening structure of the rotating body and the rotating shaft in Patent Document 1, the small diameter portion of the rotating shaft tip that is screwed into the nut extends coaxially with the rotating shaft.
Japanese Utility Model 5-012764

特許文献１の締結構造には、外部駆動源のトルク変動によりナットと回転軸先端小径部との間の螺合締結部に緩みが発生し、最悪の場合回転体の回転軸からの脱落を招くという問題がある。
本発明は上記課題に鑑みてなされたものであり、回転体と回転軸との締結構造であって、回転体に加わるトルクが感動しても回転体と回転軸との締結が緩まない締結構造を提供することを目的とする。 In the fastening structure of Patent Document 1, loosening occurs in the screwing fastening portion between the nut and the small diameter portion of the rotating shaft tip due to torque fluctuation of the external drive source, and in the worst case, the rotating body drops off from the rotating shaft. There is a problem.
The present invention has been made in view of the above problems, and is a fastening structure between a rotating body and a rotating shaft, and a fastening structure that does not loosen the fastening between the rotating body and the rotating shaft even when the torque applied to the rotating body is impressed. The purpose is to provide.

上記課題を解決するために、本発明においては、回転体ボス部に大径部と大径部に対して偏心し大径部と平行に延在する小径部とから成る貫通穴が形成され、回転軸の先端に回転軸に対して偏心し回転軸と平行に延在する回転軸よりも小径の柱状突起が形成され、回転軸先端部が回転体のボス部に形成された貫通穴の大径部に嵌入し、前記柱状突起が前記貫通穴の小径部を貫通し、回転体ボス部の端面から突出する前記柱状突起の先端部に回転体の抜け止め部材が係合していることを特徴とする回転体と回転軸との締結構造を提供する。
本発明に係る回転体と回転軸との締結構造においては、回転体と回転軸先端から延びる小径の柱状突起との係合部が、回転体と回転軸先端部との係合部に対して偏心しているので、回転体は回転軸に対しても、回転軸先端から延びる小径の柱状突起に対しても相対回転できない。従って、回転体に加わるトルクが変動しても回転体と回転軸との締結は緩まない。 In order to solve the above-mentioned problem, in the present invention, a through-hole formed of a large-diameter portion and a small-diameter portion eccentric to the large-diameter portion and extending in parallel with the large-diameter portion is formed in the rotating boss portion. A columnar protrusion having a smaller diameter than the rotating shaft that is eccentric to the rotating shaft and extends in parallel with the rotating shaft is formed at the tip of the rotating shaft, and a large through hole is formed in the boss portion of the rotating body. The rotary member is inserted into the diameter portion, the columnar protrusion penetrates the small diameter portion of the through hole, and the retaining member of the rotating body is engaged with the tip end portion of the columnar protrusion protruding from the end surface of the rotating body boss portion. Provided is a fastening structure between a rotating body and a rotating shaft.
In the fastening structure of the rotating body and the rotating shaft according to the present invention, the engaging portion between the rotating body and the small-diameter columnar protrusion extending from the tip of the rotating shaft is in relation to the engaging portion between the rotating body and the tip of the rotating shaft. Since it is eccentric, the rotating body cannot rotate relative to the rotating shaft or to the small-diameter columnar protrusion extending from the tip of the rotating shaft. Therefore, even if the torque applied to the rotating body varies, the fastening between the rotating body and the rotating shaft is not loosened.

本発明の好ましい態様においては、回転体ボス部に形成された貫通穴の大径部と回転軸先端部とはテーパ形状に形成されている。
回転体ボス部に形成された貫通穴の大径部と回転軸先端部とがテーパ形状に形成されていると、回転軸先端部を前記貫通穴の大径部に押し込む程に両者当接部の面圧が上昇し、前記当接部に働く静止摩擦力が増加する。この結果、回転体に加わるトルクの変動による回転体と回転軸との締結の緩みが更に効果的に防止される。 In the preferable aspect of this invention, the large diameter part of the through-hole formed in the rotary body boss | hub part and the rotating shaft front-end | tip part are formed in the taper shape.
When the large-diameter portion of the through hole formed in the rotating boss portion and the tip end portion of the rotating shaft are formed in a tapered shape, both abutment portions are pushed so as to push the tip end portion of the rotating shaft into the large-diameter portion of the through hole. As the surface pressure increases, the static frictional force acting on the contact portion increases. As a result, loosening of the fastening between the rotating body and the rotating shaft due to variation in torque applied to the rotating body is further effectively prevented.

本発明の好ましい態様においては、前記抜け止め部材は回転体ボス部の端面から突出する前記柱状突起の先端部に螺合し座面が回転体ボス部の端面に当接するナットである。
本発明の好ましい態様においては、前記抜け止め部材は回転体ボス部の端面から突出する前記柱状突起の先端部と回転体ボス部の端面とに係合するスナップリングである。
本発明の好ましい態様においては、前記抜け止め部材は回転体ボス部の端面から突出する前記柱状突起の先端部と回転体ボス部の端面とに当接する割りピンである。
前記抜け止め部材は、ナット、スナップリング、割りピンの何れでも良い。 In a preferred aspect of the present invention, the retaining member is a nut that is screwed into a tip end portion of the columnar protrusion protruding from the end surface of the rotating boss portion, and a seating surface abuts on the end surface of the rotating boss portion.
In a preferred aspect of the present invention, the retaining member is a snap ring that engages a tip end portion of the columnar protrusion protruding from an end face of the rotating boss portion and an end face of the rotating boss portion.
In a preferred aspect of the present invention, the retaining member is a split pin that comes into contact with the end portion of the columnar protrusion protruding from the end face of the rotating boss portion and the end face of the rotating boss portion.
The retaining member may be a nut, a snap ring, or a split pin.

本発明においては、回転体ボス部に大径部と大径部に対して偏心し大径部と平行に延在する小径部とから成る貫通穴が形成され、回転軸先端部が回転体のボス部に形成された貫通穴の大径部に嵌入し、前記貫通穴の小径部を貫通するボルトが回転軸先端部に螺入してボルト頭部の座面が回転体ボスの端面に当接していることを特徴とする回転体と回転軸との締結構造を提供する。
本発明に係る回転体と回転軸との締結構造においては、回転体と回転軸先端部に螺合するボルトとの係合部が、回転体と回転軸先端部との係合部に対して偏心しているので、回転体は回転軸に対しても、回転軸先端部に螺合するボルトに対しても相対回転できない。従って、回転体に加わるトルクが変動しても回転体と回転軸との締結は緩まない。 In the present invention, the rotating body boss part is formed with a through hole comprising a large diameter part and a small diameter part that is eccentric to the large diameter part and extends in parallel with the large diameter part. The bolt that fits into the large-diameter portion of the through hole formed in the boss portion, and the bolt that penetrates the small-diameter portion of the through hole is screwed into the tip of the rotating shaft, so that the seat surface of the bolt head contacts the end surface of the rotating boss. Provided is a fastening structure between a rotating body and a rotating shaft, characterized in that they are in contact with each other.
In the fastening structure of the rotating body and the rotating shaft according to the present invention, the engaging portion of the rotating body and the bolt screwed to the rotating shaft front end portion is relative to the engaging portion of the rotating body and the rotating shaft front end portion. Since the shaft is eccentric, the rotating body cannot rotate relative to the rotating shaft or the bolt screwed to the tip of the rotating shaft. Therefore, even if the torque applied to the rotating body varies, the fastening between the rotating body and the rotating shaft is not loosened.

本発明においては、外部駆動源の回転動力を被駆動機器の回転軸に伝達する動力伝達機構であって、上記何れかの回転体と回転軸との締結構造を備え、回転体は外部駆動源により回転駆動され、回転軸は被駆動機器の回転軸であることを特徴とする動力伝達機構を提供する。
本発明に係る動力伝達機構においては、回転体と被駆動機器の回転軸先端から延びる小径の柱状突起との係合部が、回転体と被駆動機器の回転軸先端部との係合部に対して偏心しているので、回転体は被駆動機器の回転軸に対しても、被駆動機器の回転軸先端から延びる小径の柱状突起に対しても相対回転できない。また本発明に係る回転体と回転軸との締結構造においては、回転体と回転軸先端部に螺合するボルトとの係合部が、回転体と回転軸先端部との係合部に対して偏心しているので、回転体は回転軸に対しても、回転軸先端部に螺合するボルトに対しても相対回転できない。従って、回転体に加わる外部駆動源のトルクが変動しても回転体と被駆動機器の回転軸との締結は緩まない。 In the present invention, there is provided a power transmission mechanism for transmitting the rotational power of the external drive source to the rotary shaft of the driven device, comprising a fastening structure of any one of the rotary bodies and the rotary shaft, and the rotary body is an external drive source. The power transmission mechanism is provided in which the rotational shaft is a rotational shaft of a driven device.
In the power transmission mechanism according to the present invention, the engaging portion between the rotating body and the small-diameter columnar protrusion extending from the rotating shaft tip of the driven device is the engaging portion between the rotating body and the rotating shaft tip portion of the driven device. On the other hand, since it is eccentric, the rotating body cannot rotate relative to the rotating shaft of the driven device and to the small-diameter columnar protrusion extending from the tip of the rotating shaft of the driven device. Further, in the fastening structure of the rotating body and the rotating shaft according to the present invention, the engaging portion of the rotating body and the bolt screwed to the rotating shaft tip portion is opposite to the engaging portion of the rotating body and the rotating shaft tip portion. Therefore, the rotating body cannot rotate relative to the rotating shaft or the bolt screwed to the tip of the rotating shaft. Therefore, even if the torque of the external drive source applied to the rotating body fluctuates, the fastening between the rotating body and the rotating shaft of the driven device is not loosened.

本発明に係る回転体と回転軸との締結構造においては、回転体と回転軸先端から延びる小径の柱状突起との係合部が、回転体と回転軸先端部との係合部に対して偏心しているので、回転体は回転軸に対しても、回転軸先端から延びる小径の柱状突起に対しても相対回転できない。また本発明に係る回転体と回転軸との締結構造においては、回転体と回転軸先端部に螺合するボルトとの係合部が、回転体と回転軸先端部との係合部に対して偏心しているので、回転体は回転軸に対しても、回転軸先端部に螺合するボルトに対しても相対回転できない。従って、回転体に加わるトルクが変動しても回転体と回転軸との締結は緩まない。 In the fastening structure of the rotating body and the rotating shaft according to the present invention, the engaging portion between the rotating body and the small-diameter columnar protrusion extending from the tip of the rotating shaft is in relation to the engaging portion between the rotating body and the tip of the rotating shaft. Because of the eccentricity, the rotating body cannot rotate relative to the rotating shaft or the small-diameter columnar protrusion extending from the tip of the rotating shaft. Further, in the fastening structure of the rotating body and the rotating shaft according to the present invention, the engaging portion of the rotating body and the bolt screwed to the rotating shaft tip portion is opposite to the engaging portion of the rotating body and the rotating shaft tip portion. Therefore, the rotating body cannot rotate relative to the rotating shaft or the bolt screwed to the tip of the rotating shaft. Therefore, even if the torque applied to the rotating body varies, the fastening between the rotating body and the rotating shaft is not loosened.

本発明の実施例に係る回転体と回転軸との締結構造と当該締結構造を備える動力伝達機構とを説明する。   A fastening structure between a rotating body and a rotating shaft according to an embodiment of the present invention and a power transmission mechanism including the fastening structure will be described.

図１に示すように、動力伝達機構は、図示しない無端ベルトを介して図示しない外部駆動源に接続されると共に空調用圧縮機のハウジングＡに回転可能に支持された磁性材料製のローター１と、空調用圧縮機のハウジングＡに固定され通電によりローター１を磁化させる電磁コイル２と、ローター１に対向して配設され、磁化されたローターに吸着されるアーマチュア３とを備えている。
アーマチュアボス３ａに、大径部３ｂ’と大径部３ｂ’に対して偏心し大径部３ｂ’と平行に延在する小径部３ｂ”とから成る貫通穴３ｂが形成されている。
空調用圧縮機の回転軸４の先端に回転軸先端部４ａに対して偏心し回転軸先端部４ａと平行に延在する回転軸先端部４ａよりも小径の柱状突起４ｂが形成されている。
アーマチュアボス３ａに形成された貫通穴３ｂの大径部３ｂ’は開口端から奥部端へ向けて径が漸減するようにテーパしており、回転軸先端部４ａは柱状突起へ向けて径が漸減するようにテーパしている。
回転軸先端部４ａがアーマチュアボス３ａに形成された貫通３ｂの大径部３ｂ’に嵌入し、柱状突起４ｂが前記貫通穴３ｂの小径部３ｂ”を貫通し、アーマチュアボス３ａの端面から突出する柱状突起４ｂの先端部にナット５が螺合してナット５の座面がアーマチュアボス３ａの端面に当接した状態で、アーマチュア３は圧縮機回転軸４に締結されている。
柱状突起４ｂに螺合するナット５の座面がアーマチュアボス３ａの端面に当接することにより、アーマチュア３の圧縮機回転軸４からの抜け落ちが防止されている。 As shown in FIG. 1, the power transmission mechanism is connected to an external drive source (not shown) via an endless belt (not shown), and is a rotor 1 made of a magnetic material rotatably supported by a housing A of an air conditioning compressor. The electromagnetic coil 2 is fixed to the housing A of the air conditioning compressor and magnetizes the rotor 1 by energization, and the armature 3 is disposed opposite to the rotor 1 and is attracted to the magnetized rotor.
The armature boss 3a is formed with a through hole 3b composed of a large diameter portion 3b ′ and a small diameter portion 3b ″ that is eccentric to the large diameter portion 3b ′ and extends parallel to the large diameter portion 3b ′.
A columnar protrusion 4b having a diameter smaller than that of the rotating shaft tip portion 4a that is eccentric to the rotating shaft tip portion 4a and extends in parallel with the rotating shaft tip portion 4a is formed at the tip of the rotating shaft 4 of the air conditioning compressor.
The large-diameter portion 3b ′ of the through hole 3b formed in the armature boss 3a is tapered such that the diameter gradually decreases from the opening end toward the back end, and the rotating shaft tip portion 4a has a diameter toward the columnar protrusion. Tapered to decrease gradually.
The rotary shaft tip portion 4a is fitted into a large diameter portion 3b 'of the through 3b formed in the armature boss 3a, and the columnar protrusion 4b penetrates the small diameter portion 3b "of the through hole 3b and protrudes from the end face of the armature boss 3a. The armature 3 is fastened to the compressor rotating shaft 4 in a state in which the nut 5 is screwed to the tip of the columnar protrusion 4b and the seat surface of the nut 5 is in contact with the end surface of the armature boss 3a.
The seating surface of the nut 5 that is screwed into the columnar protrusion 4b abuts against the end surface of the armature boss 3a, so that the armature 3 is prevented from coming off from the compressor rotating shaft 4.

上記動力伝達機構においては、図示しない無端ベルトを介して図示しない外部駆動源からローター１へトルクが伝達され、アーマチュア３の吸着部を介してローター１からアーマチュア３へトルクが伝達され、アーマチュア３と圧縮機回転軸４との締結部を介して圧縮機回転軸４にトルクが伝達される。
本実施例に係るアーマチュア３と圧縮機回転軸４との締結構造並びに当該締結構造を備える動力伝達機構においては、アーマチュアボス３ａと圧縮機回転軸４の先端から延びる小径の柱状突起４ｂとの係合部が、アーマチュアボス３ａと圧縮機回転軸先端部４ａとの係合部に対して偏心しているので、アーマチュアボス３ａひいてはアーマチュア３は圧縮機回転軸先端部４ａに対しても、圧縮機回転軸４の先端から延びる小径の柱状突起４ｂに対しても相対回転できない。また柱状突起４ｂに螺合するナット５の座面がアーマチュアボス３ａの端面に当接して、アーマチュアボス３ａの圧縮機回転軸先端部４ａからの抜け落ちを防止している。従って、アーマチュア３に加わる外部駆動源のトルクが変動してもアーマチュア３と圧縮機回転軸４との締結は緩まない。 In the power transmission mechanism, torque is transmitted from an external drive source (not shown) to the rotor 1 via an endless belt (not shown), and torque is transmitted from the rotor 1 to the armature 3 via an adsorption portion of the armature 3. Torque is transmitted to the compressor rotation shaft 4 through a fastening portion with the compressor rotation shaft 4.
In the fastening structure between the armature 3 and the compressor rotating shaft 4 and the power transmission mechanism including the fastening structure according to the present embodiment, the relationship between the armature boss 3a and the small-diameter columnar protrusion 4b extending from the tip of the compressor rotating shaft 4. Since the joint portion is eccentric with respect to the engagement portion between the armature boss 3a and the compressor rotation shaft tip 4a, the armature boss 3a and thus the armature 3 rotates the compressor also with respect to the compressor rotation shaft tip 4a. Relative rotation with respect to the small-diameter columnar protrusion 4b extending from the tip of the shaft 4 is also impossible. Further, the seat surface of the nut 5 screwed into the columnar protrusion 4b abuts on the end surface of the armature boss 3a to prevent the armature boss 3a from falling off from the compressor rotating shaft front end portion 4a. Therefore, even if the torque of the external drive source applied to the armature 3 fluctuates, the fastening between the armature 3 and the compressor rotating shaft 4 is not loosened.

アーマチュアボス３ａに形成された貫通穴３ｂの大径部３ｂ’は開口端から奥部端へ向けて径が漸減するようにテーパしており、回転軸先端部４ａは柱状突起４ｂへ向けて径が漸減するようにテーパしていると、回転軸先端部４ａを前記貫通穴３ｂの大径部３ｂ’に押し込む程に両者当接部の面圧が上昇し、前記当接部に働く静止摩擦力が増加する。この結果、アーマチュア３に加わる外部駆動源のトルクの変動によるアーマチュア３と圧縮機回転軸４との締結の緩みが更に効果的に防止される。 The large-diameter portion 3b ′ of the through hole 3b formed in the armature boss 3a is tapered such that the diameter gradually decreases from the opening end toward the back end, and the rotation shaft tip portion 4a has a diameter toward the columnar protrusion 4b. When the taper is tapered so as to gradually decrease, the surface pressure of both contact portions rises as the rotary shaft tip portion 4a is pushed into the large diameter portion 3b ′ of the through hole 3b, and the static friction acting on the contact portion. Power increases. As a result, loosening of the fastening between the armature 3 and the compressor rotating shaft 4 due to the fluctuation of the torque of the external drive source applied to the armature 3 is further effectively prevented.

ナット５に代えて、アーマチュアボス３ａの端面から突出する柱状突起４ｂの先端部とアーマチュアボス３ａの端面とに係合するスナップリングや割りピンを用いてアーマチュアボス３ａの圧縮機回転軸４からの抜け落ちを防止しても良い。 Instead of the nut 5, a snap ring or a split pin that engages the tip of the columnar protrusion 4 b protruding from the end face of the armature boss 3 a and the end face of the armature boss 3 a is used to remove the armature boss 3 a from the compressor rotating shaft 4. You may prevent omission.

図２に示すように、アーマチュアボス３ａに大径部３ｂ’と大径部３ｂ’に対して偏心し大径部３ｂ’と平行に延在する小径部３ｂ”とから成る貫通穴３ｂを形成し、圧縮機回転軸４の先端部４ａをアーマチュアボス３ａに形成した貫通穴３ｂの大径部３ｂ’に嵌入させ、前記貫通穴３ｂの小径部３ｂ”を貫通するボルト６を圧縮機回転軸４の先端部４ａに螺入させ、ボルト６頭部の座面をアーマチュアボス３ａの端面に当接させて、アーマチュア３を圧縮機回転軸４に締結しても良い。
アーマチュアボス３ａと圧縮機回転軸４の先端部４ａに螺合するボルト６との係合部が、アーマチュアボス３ａと圧縮機回転軸先端部４ａとの係合部に対して偏心しているので、アーマチュアボス３ａひいてはアーマチュア３は圧縮機回転軸先端部部４ａに対しても、圧縮機回転軸４先端部４ａに螺合するボルト６に対しても相対回転できない。従って、アーマチュア３に加わる外部駆動源のトルクが変動してもアーマチュア３と圧縮機回転軸４との締結は緩まない。 As shown in FIG. 2, the armature boss 3a is formed with a through hole 3b composed of a large diameter portion 3b ′ and a small diameter portion 3b ″ that is eccentric to the large diameter portion 3b ′ and extends parallel to the large diameter portion 3b ′. Then, the front end portion 4a of the compressor rotating shaft 4 is fitted into the large diameter portion 3b ′ of the through hole 3b formed in the armature boss 3a, and the bolt 6 penetrating the small diameter portion 3b ″ of the through hole 3b is inserted into the compressor rotating shaft. 4, the armature 3 may be fastened to the compressor rotating shaft 4 by screwing it into the front end portion 4 a of the bolt 4 and bringing the seating surface of the head of the bolt 6 into contact with the end surface of the armature boss 3 a.
Since the engagement portion between the armature boss 3a and the bolt 6 screwed into the tip portion 4a of the compressor rotation shaft 4 is eccentric with respect to the engagement portion between the armature boss 3a and the compressor rotation shaft tip portion 4a, The armature boss 3a and therefore the armature 3 cannot rotate relative to the compressor rotary shaft tip 4a nor to the bolt 6 screwed to the compressor rotary shaft 4 tip 4a. Therefore, even if the torque of the external drive source applied to the armature 3 fluctuates, the fastening between the armature 3 and the compressor rotating shaft 4 is not loosened.

本発明は、回転体と回転軸との締結構造に、また外部駆動源の回転動力を被駆動機器の回転軸に伝達する動力伝達機構に、広く利用可能である。   The present invention can be widely used in a fastening structure between a rotating body and a rotating shaft, and in a power transmission mechanism that transmits the rotational power of an external drive source to the rotating shaft of a driven device.

本発明の第１実施例に係る回転体と回転軸との締結構造を備える動力伝達機構の断面図である。It is sectional drawing of a power transmission mechanism provided with the fastening structure of the rotary body which concerns on 1st Example of this invention, and a rotating shaft. 本発明の第３実施例に係る回転体と回転軸との締結構造を備える動力伝達機構の断面図である。It is sectional drawing of a power transmission mechanism provided with the fastening structure of the rotary body and rotating shaft which concern on 3rd Example of this invention.

符号の説明Explanation of symbols

１ ローター
２ 電磁コイル
３ アーマチュア
３ａ アーマチュアボス
３ｂ 貫通穴
３ｂ’ 大径部
３ｂ” 小径部
４ 圧縮機回転軸
４ａ 先端部
４ｂ 柱状突起
５ ナット
６ ボルト DESCRIPTION OF SYMBOLS 1 Rotor 2 Electromagnetic coil 3 Armature 3a Armature boss 3b Through-hole 3b 'Large diameter part 3b "Small diameter part 4 Compressor rotating shaft 4a Tip part 4b Columnar protrusion 5 Nut 6 Bolt

Claims (7)

回転体ボス部に大径部と大径部に対して偏心し大径部と平行に延在する小径部とから成る貫通穴が形成され、回転軸の先端に回転軸に対して偏心し回転軸と平行に延在する回転軸よりも小径の柱状突起が形成され、回転軸先端部が回転体のボス部に形成された貫通穴の大径部に嵌入し、前記柱状突起が前記貫通穴の小径部を貫通し、回転体ボス部の端面から突出する前記柱状突起の先端部に回転体の抜け止め部材が係合していることを特徴とする回転体と回転軸との締結構造。 A through-hole consisting of a large diameter portion and a small diameter portion extending in parallel with the large diameter portion is formed in the rotating boss portion, and is rotated eccentrically with respect to the rotation shaft at the tip of the rotation shaft. A columnar protrusion having a diameter smaller than that of the rotating shaft extending in parallel with the shaft is formed, the tip of the rotating shaft is fitted into a large diameter portion of the through hole formed in the boss portion of the rotating body, and the columnar protrusion is the through hole. A structure for fastening a rotating body and a rotating shaft, wherein a retaining member of the rotating body is engaged with a tip end portion of the columnar protrusion that penetrates the small diameter portion of the rotating body and protrudes from an end surface of the rotating body boss portion. 回転体ボス部に形成された貫通穴の大径部と回転軸先端部とはテーパ形状に形成されていることを特徴とする請求項１に記載の回転体と回転軸との締結構造。 The fastening structure of a rotating body and a rotating shaft according to claim 1, wherein the large diameter portion of the through hole formed in the rotating body boss portion and the tip end portion of the rotating shaft are formed in a tapered shape. 前記抜け止め部材は回転体ボス部の端面から突出する前記柱状突起の先端部に螺合し座面が回転体ボス部の端面に当接するナットであることを特徴とする請求項１又は２に記載の回転体と回転軸との締結構造。 3. The nut according to claim 1, wherein the retaining member is a nut that is screwed into a tip end portion of the columnar protrusion protruding from an end surface of the rotating body boss portion, and a seat surface abuts on the end surface of the rotating body boss portion. A fastening structure of the described rotating body and rotating shaft. 前記抜け止め部材は回転体ボス部の端面から突出する前記柱状突起の先端部と回転体ボス部の端面とに係合するスナップリングであることを特徴とする請求項１又は２に記載の回転体と回転軸との締結構造。 3. The rotation according to claim 1, wherein the retaining member is a snap ring that engages a tip end portion of the columnar protrusion protruding from an end surface of the rotating body boss portion and an end surface of the rotating body boss portion. Fastening structure between body and rotating shaft. 前記抜け止め部材は回転体ボス部の端面から突出する前記柱状突起の先端部と回転体ボス部の端面とに当接する割りピンであることを特徴とする請求項１又は２に記載の回転体と回転軸との締結構造。 3. The rotating body according to claim 1, wherein the retaining member is a split pin that comes into contact with a front end portion of the columnar protrusion protruding from an end surface of the rotating body boss portion and an end surface of the rotating body boss portion. Fastening structure with the rotating shaft. 回転体ボス部に大径部と大径部に対して偏心し大径部と平行に延在する小径部とから成る貫通穴が形成され、回転軸先端部が回転体のボス部に形成された貫通穴の大径部に嵌入し、前記貫通穴の小径部を貫通するボルトが回転軸先端部に螺入してボルト頭部の座面が回転体ボスの端面に当接していることを特徴とする回転体と回転軸との締結構造。 The rotating body boss is formed with a through hole comprising a large diameter part and a small diameter part that is eccentric to the large diameter part and extends parallel to the large diameter part, and the tip of the rotating shaft is formed in the boss part of the rotating body. The bolt that fits into the large-diameter portion of the through-hole and that penetrates the small-diameter portion of the through-hole is screwed into the tip of the rotary shaft so that the seat surface of the bolt head is in contact with the end surface of the rotating boss. A fastening structure of a rotating body and a rotating shaft. 外部駆動源の回転動力を被駆動機器の回転軸に伝達する動力伝達機構であって、請求項１乃至６の何れか１項に記載の回転体と回転軸との締結構造を備え、回転体は外部駆動源により回転駆動され、回転軸は被駆動機器の回転軸であることを特徴とする動力伝達機構。 A power transmission mechanism that transmits rotational power of an external drive source to a rotational shaft of a driven device, comprising the fastening structure of the rotational body and the rotational shaft according to any one of claims 1 to 6, Is driven by an external drive source, and the rotating shaft is a rotating shaft of a driven device.
JP2005076754A 2005-03-17 2005-03-17 Rotor-to-rotating shaft fastening structure Pending JP2006258197A (en)

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Application Number Priority Date Filing Date Title
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JP2006258197A5 JP2006258197A5 (en) 2008-07-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63170656U (en) * 1987-04-27 1988-11-07
JPS6446531U (en) * 1987-09-16 1989-03-22
JPH0512764U (en) * 1991-05-28 1993-02-19 日本電装株式会社 Electromagnetic clutch for compressor
JPH0637614U (en) * 1992-10-24 1994-05-20 郁夫 祝 Fastening ring
JP2004001672A (en) * 2002-04-04 2004-01-08 Nsk Ltd Bearing unit for wheel driving

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63170656U (en) * 1987-04-27 1988-11-07
JPS6446531U (en) * 1987-09-16 1989-03-22
JPH0512764U (en) * 1991-05-28 1993-02-19 日本電装株式会社 Electromagnetic clutch for compressor
JPH0637614U (en) * 1992-10-24 1994-05-20 郁夫 祝 Fastening ring
JP2004001672A (en) * 2002-04-04 2004-01-08 Nsk Ltd Bearing unit for wheel driving

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