TW451034B - Bearing of a machine shaft - Google Patents

Bearing of a machine shaft Download PDF

Info

Publication number
TW451034B
TW451034B TW89122014A TW89122014A TW451034B TW 451034 B TW451034 B TW 451034B TW 89122014 A TW89122014 A TW 89122014A TW 89122014 A TW89122014 A TW 89122014A TW 451034 B TW451034 B TW 451034B
Authority
TW
Taiwan
Prior art keywords
bearing
shaft
patent application
scope
item
Prior art date
Application number
TW89122014A
Other languages
Chinese (zh)
Inventor
Karl-Heinz Wiemers
Original Assignee
W I T Wiemers Innovative Techn
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by W I T Wiemers Innovative Techn filed Critical W I T Wiemers Innovative Techn
Application granted granted Critical
Publication of TW451034B publication Critical patent/TW451034B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
    • B23Q3/183—Centering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/40—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using ball, roller or wheel arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators

Abstract

A bearing arrangement for a machine shaft disposed for axial and/or rotational movement in a sleeve and including at least one position sensor and plurality of electromagnetic bearings selectively energizable in response to signals from the sensor to maintain the concentric disposition of the shaft relative to the sleeve.

Description

4 51 0 3 4 A7 B7 五、發明説明（/ ) 發明昔醫 1、 發明領域 本發明大體上係相關於一種機械軸之軸承，尤其相關 於一種用於在軸承中進行軸向移動之機械軸的軸承。 2、 習知技藝之說明 將可旋轉機械軸整合以及支承在機械工具中而呈水平 及垂直定向係爲吾人所一般已知者。爲了提供一種儘可能 和諧的操作，垂直支承的機械軸係需要特殊的軸承來吸收 並消除在操作期間所產生的作用力。 而此在機械工具中進行機械程序係呈現出一種主要重 要性，此係由於此等程序係會產生振動，而此種振動若未 受抑制或克服係會對工件之表面及尺.寸公差造成不利影響 〇 爲此原因，伸縮式軸承係變得爲人所知，其係提供穩 械軸更穩定的支承及定位，甚至是在其於延伸狀態之中。 此等軸承在製造上係爲非常昂貴者，並且係會遭受到 其爲機械式被動性且無法確保精確同心狀態等缺點。 發明且的 據此，本發明之目的係爲提供一種用於機械軸之軸承 ，其係能夠有效地克服在習知裝置中固有的缺點。 蠹明嫌鼉 根據本發明，用於機械軸之新穎軸承係提供了機械軸 在磁牲軸承中的支承，並且藉由定中磁性體來提供軸之定 位’該軸承係被建構成使得機械軸之中心度及繼而之同心 _；_ . _3___ 本紙張尺度適用中國國家樣準（CNS > Α4规格（2丨0X297公釐） (請先閲讀背面之注$項再填f頁 •裝· >ΤΓ 線 經濟部智慧財產局貝工消費合作社印製 451 0 3 4 經濟部智慧財產局員工消费合作社印製 A7 B7 五、發明説明（之） 旋轉不僅受一整合感測系統之監測，並且如果需要係能夠 藉由定中心磁性體之適當控制來加以調整》 在本發明的一個較佳實施例中，軸承係由傳統磁性軸 承與主要用來確保機械軸進行精確同心旋轉之磁性軸承的 組合所構成。 特別相關於以垂直方式支承於工具機中之機械軸，其 等之精確同心定位係爲最重要者，此係因爲對於處理工件 而言，此等機械軸係可以於其等長度之相當部分伸縮地移 出其等之軸承之外。此係會引導出相當顯著的應力，其係 可能會造成機械軸脫離其精確的同心位置處離開。此種偏 移係藉由定中心磁性體來加以偵測，並且係藉由一個被連 接至該定中心磁性體之控制系統來加.以補償，以便能夠確 保該機械軸之同心狀態。 匾示籣里說明 被認爲是本發明特徵之新穎特點係被詳細描述在所附 申請鏈範圍之中。然而，本發明相關於其結構、構造、配 置' 以及製造技術，連同本發明之其他目的及優點將從以 下較佳實施例之插述並根據伴隨圖示來加以硏讀，而將爲 吾人獲得最佳了解，其中之圖示係爲： 第一圖係爲新穎軸承之部分剖示之側視圖。 元件符號說明 1 軸套 -2 傳統式軸承 2’ 傳統式軸承 .______4_____ 氏張尺度適用中國國家槺準（CNS ) Α4規格（210X297公釐） 請先Κ讀背面之注意事項再填ρν •裝4 51 0 3 4 A7 B7 V. Description of the invention (/) The invention of the past doctor 1. Field of the invention The present invention relates generally to a bearing for a mechanical shaft, and particularly relates to a mechanical shaft for axial movement in the bearing. Bearing. 2. Description of the know-how. Integrating and supporting the rotatable mechanical shaft in the machine tool in a horizontal and vertical orientation is generally known to me. In order to provide as harmonious operation as possible, vertically supported mechanical shafting requires special bearings to absorb and eliminate the forces generated during operation. And the mechanical program in the machine tool shows a major importance, because these programs will generate vibration, and if this vibration is not suppressed or overcome, it will cause the workpiece surface and size tolerances. Adverse effects: For this reason, telescopic bearing systems have become known, which provide more stable support and positioning of the mechanical shaft, even in its extended state. These bearings are very expensive to manufacture and suffer from the disadvantages of being mechanically passive and failing to ensure an accurate concentric state. Accordingly, the object of the present invention is to provide a bearing for a mechanical shaft, which can effectively overcome the disadvantages inherent in the conventional device. It is clear that according to the present invention, a novel bearing system for a mechanical shaft provides support for the mechanical shaft in a magnetic bearing, and provides positioning of the shaft by centering a magnetic body. The bearing system is constructed so that the mechanical shaft Centrality and subsequent concentricity _; _. _3___ This paper size applies to Chinese national standards (CNS > Α4 size (2 丨 0X297 mm) (Please read the note on the back before filling in page f • installation · > TΓ Printed by Shelley Consumer Cooperative of Intellectual Property Bureau of Ministry of Economy 451 0 3 4 Printed by A7 B7 of Employee Cooperative of Intellectual Property Bureau of Ministry of Economy 5. Rotation is not only monitored by an integrated sensing system, and if Need to be able to be adjusted by proper control of the centering magnetic body "In a preferred embodiment of the present invention, the bearing is a combination of a traditional magnetic bearing and a magnetic bearing mainly used to ensure accurate concentric rotation of the mechanical shaft It is particularly relevant to the mechanical shaft that is supported in the machine tool in a vertical manner, and its precise concentric positioning is the most important, because for processing the workpiece, this The mechanical shaft system can be telescopically moved out of its bearings with a considerable part of its equal length. This system will induce quite significant stresses, which may cause the mechanical shaft to leave its precise concentric position. The movement is detected by the centering magnetic body, and is added by a control system connected to the centering magnetic body to compensate, so that the concentric state of the mechanical shaft can be ensured. The novel features considered to be the features of the present invention are described in detail in the scope of the attached application chain. However, the present invention is related to its structure, construction, configuration, and manufacturing technology, along with other objects and advantages of the present invention. The following preferred embodiments are interpolated and read based on accompanying drawings, which will give us the best understanding. The illustrations are: The first drawing is a side view of a part of the novel bearing. DESCRIPTION OF SYMBOLS 1 Shaft sleeve-2 Traditional bearing 2 'Traditional bearing. ______4_____ The scale standard is applicable to China National Standard (CNS) Α4 size (210X297 mm) Please read the back first Note for refilling ρν • equipment

IT 線 45 103 4 A7 B7 五、發明説明（5 ) 經濟部智慧財產局S工消費合作社印製 3 機械軸 4 磁性軸承 4’ 定中心電磁體 5 外殻或罩套 5* 外殻 6 定中心磁性體 6' 定中心磁性體 8 箭頭 9 箭頭 1 0 感測器 I 0* 感測器 II 控制單元 鲛佳實施例之詳細器:明V 如同在圖示中所顯示者，一個機械軸3係被設置，該 機械軸3係被裝設用於同心地相對於一個軸套1並於其中 進行旋轉以及/或者垂直移動，如同分別由箭頭8與9所 表示者。用於將此等移動提供予機械軸之驅動裝置係爲吾 人所熟知者，並且係因此未於圖示中顯示出來。在處於一 垂直定向之時，熟習此技者將能夠了解的是本發明亦能夠 被運用至水平安置之機械軸。軸頸係由傳統軸向軸承2、 2’以及一個磁性軸承4所構成。該等傳統式軸承2、2 ’係可以爲任何爲吾人所熟知之滾珠軸承，滾柱軸承、空 氣軸系、或是流體軸承。一個額外的軸承係由定中心磁性 體6所提供，該定中磁性體6係被裝設在一個外殼或罩套 請 先 閲 讀 背 裝 訂 線 本紙張尺度逋用f國圉家榡準（CNS ) A4规格（2丨0X297公釐> 45 1 0 3 4 經濟部暫慧財產局員工消費合作社印製 A7 B7_— 五、發明説明（+ ) 5之中。該定中心磁性體6係裝設環繞著該機械軸3的外 圍而與其相距一非常近之距離。該等定中心磁性體6的數 目較佳係爲四個，但熟於此技者將能夠了解的是，依據特 定的應用，更多或更少的磁性體係可以被使用》另外提供 了至少一個感測器10|其係被安置在非常接近該機械軸 3之附近處，用以監測該機械軸3相對於軸承2與磁性體 6之位置。該感測器1 0係被連接至一個於圖示中所顯示 之控制單元1 1。該控制單元1 1係被連接至電磁體6， 用以相應於來自感測器之信號而選擇性地激能，來抵消該 機械軸3在該軸套1或軸承配置內與其同心配置間之任何 偏移。此等控制係爲在習知技藝中爲吾人所熟知者，因此 不須在此詳述。該感測器1 0係可以爲任何熟知類型之感 測器，例如是一個光學感測器或是霍爾（Hall)感測器， 用以偵測在環繞著該機械軸3之磁場中的不平衡性。 此外，該機械軸3於該磁性軸承4內的支承係可以被 建構成使得定中心電磁體4’能夠被直接地裝設在該軸套 1中而鄰近於該磁性軸承4或與其整合爲一。較佳的情況 是，一個額外的感測器10’係被提供用以藉由定中心電 磁體4’ ，而以一種相似於電磁體6的方式來監測並調整 該機械軸3之配置。再者，一個額外的定中心磁性體6’ 係被設置在一個外殼5’內’並且係被安置成同心地環繞 著該機械軸3的一個軸向延伸部8 ’用以接收一個工件或 工具\在圖示中並未顯示）。該等電磁體4’以及6’係 被連接至該控制單元1 1 ’用以相應於來自該感測器1 〇 __6_ 本紙浪尺度適用中國國家標举（CNS) A4规格（Μ0Χ2的公釐1 ΛΙ-· (讀先W讀背面之注$項再填W4I) -裝· 訂 線 45103 4 五、發明説明（夕）’與10之不平衡信號而選擇性地激能。後者之配置針對水平配置之軸承組件而言係爲特別有 利者。 (請先閲讀背面之注意事項再填W4頁 裝 訂 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國圃家揉準（CNS ) A4规格（210X297公釐）IT line 45 103 4 A7 B7 V. Description of the invention (5) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs S Industrial Consumer Cooperatives 3 Mechanical shaft 4 Magnetic bearing 4 'Centering electromagnet 5 Housing or cover 5 * Housing 6 Centering Magnetic body 6 'Centering magnetic body 8 Arrow 9 Arrow 1 0 Sensor I 0 * Sensor II Control unit details of the preferred embodiment: Ming V As shown in the figure, a mechanical shaft 3 system It is provided that the mechanical shaft 3 is arranged for rotating and / or vertically moving concentrically with respect to a shaft sleeve 1 therein, as indicated by arrows 8 and 9, respectively. The drive used to provide this movement to the mechanical shaft is well known to us and is therefore not shown in the illustration. When in a vertical orientation, those skilled in the art will understand that the present invention can also be applied to a horizontally arranged mechanical shaft. The journal system consists of conventional axial bearings 2, 2 'and a magnetic bearing 4. These conventional bearings 2, 2 'can be any ball bearings, roller bearings, air shaft systems, or fluid bearings that are well known to us. An additional bearing is provided by the centering magnetic body 6, which is housed in a housing or cover. Please read the back gutter paper size. Use country standard (CNS). A4 specification (2 丨 0X297mm > 45 1 0 3 4 printed by A7 B7_—the employee consumer cooperative of the temporary wisdom property bureau of the Ministry of Economic Affairs. 5. In the description of the invention (+) 5. The centering magnetic body 6 is installed around It is close to the periphery of the mechanical shaft 3. The number of the centering magnetic bodies 6 is preferably four, but those skilled in the art will be able to understand that, depending on the specific application, more More or less magnetic systems can be used "In addition, at least one sensor 10 is provided | It is arranged very close to the mechanical shaft 3 to monitor the mechanical shaft 3 relative to the bearing 2 and the magnetic body Position of 6. The sensor 10 is connected to a control unit 11 shown in the figure. The control unit 11 is connected to an electromagnet 6 to correspond to a signal from the sensor And selectively excite the energy to offset the mechanical shaft 3 in the shaft sleeve 1 or Any deviation between the bearing configuration and its concentric configuration. These controls are well known to us in the art, so it is not necessary to elaborate here. The sensor 10 can be any known type of sensor The sensor, such as an optical sensor or a Hall sensor, is used to detect the imbalance in the magnetic field surrounding the mechanical shaft 3. In addition, the mechanical shaft 3 is on the magnetic bearing The support system in 4 can be constructed so that the centering electromagnet 4 'can be directly installed in the sleeve 1 adjacent to or integrated with the magnetic bearing 4. Preferably, an additional The sensor 10 'is provided to monitor and adjust the configuration of the mechanical shaft 3 by centering the electromagnet 4' in a manner similar to that of the electromagnet 6. Furthermore, an additional centering magnet The 6 'system is arranged in a housing 5' and the system is arranged concentrically around an axial extension 8 'of the mechanical shaft 3 for receiving a workpiece or tool (not shown in the illustration). The electromagnets 4 'and 6' are connected to the control unit 1 1 'to correspond to the sensor 1 〇__6_ This paper wave standard applies the Chinese National Standard (CNS) A4 specification (MM0 × 2 mm) 1 ΛΙ- · (read the first W item on the back and then fill in W4I)-binding · 45103 4 V. Description of the invention (Xi) and the unbalanced signal of 10 and selectively excited. The latter configuration is aimed at The horizontally arranged bearing assembly is particularly advantageous. (Please read the precautions on the back before filling in W4. Binding. Printed by the Intellectual Property Bureau Employees Consumer Cooperatives of the Ministry of Economics. This paper is printed in accordance with the Chinese Garden Standard (CNS) A4 specification (210X297 mm)

Claims (1)

A8B8C8D8 451034 六、申請專利範圍 1、 一種機械軸的軸承配置，其係包括有： 用於支承該軸於其中而成一同心配置，並使其能夠進 行軸向或旋轉移動之至少一種的機構： 至少一個第一軸承，其係於一第一軸向位置處環繞著 該軸； 至少一個以電氣方式激能之磁性軸承，其係於一第二 軸向位置處環繞著該軸； 一個第一感測器，其係用於監測該軸於該支承機構中 的配置，益且用於產生指出該軸之同心與非同心配置之至 少第一與第二信號： 相應於該至少第二信號來對該磁性軸承激能，用以使 該軸移動至其同心配置的機構》 . 2、 根據申請專利範圍第1項所述之軸承配置，其更 包括有複數個環繞著該軸之軸向分隔式的第一軸承。 3、 根搛申請專利範圍第1項所述之軸承配置，其中 ，該第一軸承係爲滾珠軸承、滾柱軸承、空氣軸承、以及 流體軸承中的一種。 4、 根據申請專利範圍第1項所述之軸承配置，其更 包括有一個環繞著該軸而位於第三軸向位置處之磁性定中 心軸承^ 5、 根據申請專利範圍第4項所述之軸承配置，其中 ，該定中心軸承係爲一個能夠至少相應於第二信號而激能 之電酴體。 6 '根據申請專利範圍第5項所述之軸承配置，其中 1 本纸張尺度適用中國明家標準（CNS)A4規格（210 X 297公* ) 請 先 閲 讀 背 I裝 頁I 訂 經濟部智慧財產局員工消費合作社印製 A8B8C8D8 45 1 0 3 4 六、申請專利範圍 ，該定中心軸承係包括有一個第二感測器，用以監測該軸 之同心或非同心配置β 7、 根據申請專利範圍第4項所述之軸承配置，其中 ，該軸係包括有一個軸向延伸部，用以支承一工具與一工 件中的一個，並且其中，一個被更進一步以電氣方式激能 之磁性軸承係於一個鄰近於該延伸部的位置處環繞著該軸 〇 8、 根據申請專利範圍第7項所述之軸承配置，其中 ，該更進一步之磁性體係至少相應於第二信號而被選擇性 地激能》 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 2 本紙張尺度適用+國國家標準（CNS)A4規格（21〇 X 297公釐）A8B8C8D8 451034 6. Scope of patent application 1. A bearing arrangement for a mechanical shaft includes: at least one mechanism for supporting the shaft in a concentric arrangement and enabling it to perform axial or rotational movement: at least A first bearing that surrounds the shaft at a first axial position; at least one magnetic bearing that electrically excites energy that surrounds the shaft at a second axial position; a first sense A detector for monitoring the configuration of the shaft in the support mechanism, and for generating at least first and second signals indicating concentric and non-concentric configurations of the shaft: corresponding to the at least second signal The magnetic bearing excites energy to move the shaft to its concentric arrangement mechanism. 2. According to the bearing arrangement described in item 1 of the patent application scope, it further includes a plurality of axially spaced-apart types surrounding the shaft. First bearing. 3. The bearing arrangement according to item 1 of the scope of patent application, wherein the first bearing is one of a ball bearing, a roller bearing, an air bearing, and a fluid bearing. 4. According to the bearing arrangement described in item 1 of the scope of patent application, it further includes a magnetic centering bearing that surrounds the shaft at the third axial position ^ 5. According to item 4 of the scope of patent application A bearing arrangement, wherein the centering bearing is an electric body capable of exciting energy at least in response to a second signal. 6 'According to the bearing arrangement described in item 5 of the scope of patent application, 1 paper size is applicable to China Mingjia Standard (CNS) A4 specifications (210 X 297 male *) Please read the back page first and order the wisdom of the Ministry of Economy Printed by A8B8C8D8 45 1 0 3 4 of the Property Cooperative Consumer Cooperative 6. The scope of patent application, the centering bearing system includes a second sensor to monitor the concentric or non-concentric configuration of the shaft β 7, according to the patent application The bearing arrangement according to item 4 of the scope, wherein the shaft system includes an axial extension for supporting one of a tool and a workpiece, and wherein one of the magnetic bearings is further electrically excited. A bearing arrangement surrounding the shaft at a position adjacent to the extension, according to item 7 of the scope of patent application, wherein the further magnetic system is selectively corresponding to at least the second signal "Energy" (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 This paper size applies + National Standards (CNS) A4 size (21〇 X 297 mm)
TW89122014A 1999-04-15 2000-10-19 Bearing of a machine shaft TW451034B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999117134 DE19917134A1 (en) 1999-04-15 1999-04-15 Spindle bearing of machine tool or other machine in telescopic or non-telescopic spindle casing; has bearing with sensor inside casing and centring magnets with sensor outside spindle casing

Publications (1)

Publication Number Publication Date
TW451034B true TW451034B (en) 2001-08-21

Family

ID=7904731

Family Applications (1)

Application Number Title Priority Date Filing Date
TW89122014A TW451034B (en) 1999-04-15 2000-10-19 Bearing of a machine shaft

Country Status (2)

Country Link
DE (1) DE19917134A1 (en)
TW (1) TW451034B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8795028B2 (en) * 2004-10-04 2014-08-05 The Gleason Works Magnetic spindle for machine tool
DE102005023928A1 (en) * 2005-05-24 2006-11-30 Schaeffler Kg Friktionsfalschdrallaggregat
DE102013218888A1 (en) * 2013-09-20 2015-04-09 Mahle International Gmbh tool spindle

Also Published As

Publication number Publication date
DE19917134A1 (en) 2000-10-19

Similar Documents

Publication Publication Date Title
US7633201B2 (en) Magnetic bearing device and vacuum pump
JP2009121958A (en) Rotary encoder and brushless motor
US11496021B2 (en) Electric motor having a rotor shaft and a first and a second bearing
JP2007024885A (en) Tachometer for wheel of aircraft
US6543355B1 (en) Roller for a rotary press
US11435717B2 (en) Measuring device for a spindle or a rotary table
TW451034B (en) Bearing of a machine shaft
JP2007089312A (en) Angle detector for motor rotating shafts
KR960004917B1 (en) Rotary apparatus
JP2024023967A (en) rotary table device
US10168182B2 (en) Shaft encoder with magnetic shield
JPH1118361A (en) Motor with built-in controller
EP4321842A1 (en) Absolute encoder
JP3689439B2 (en) Magnetic bearing device
JP2005341648A (en) Alignment stage apparatus
JP2003065835A (en) Bearing unit with sensor
JP2001214934A (en) Magnetic bearing device
CN217560657U (en) Be applied to cavity magnetic encoder of automation production line arm
JP2007085890A (en) Bearing with roller rotation detector for office equipment, and roller driving device
JPH0649091Y2 (en) Electric motor with rotation detector
JPH10332428A (en) Shaft rotation detecting device
JPH0544732Y2 (en)
JPH1047351A (en) Air bearing spindle
JPH07103234A (en) Magnetic bearing spindle
KR20170006634A (en) Thrust Magnetic Bearing Integrated with Radial Displacement Sensors

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees