TWI646328B - Flexible tube support device - Google Patents
Flexible tube support device Download PDFInfo
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- TWI646328B TWI646328B TW107105960A TW107105960A TWI646328B TW I646328 B TWI646328 B TW I646328B TW 107105960 A TW107105960 A TW 107105960A TW 107105960 A TW107105960 A TW 107105960A TW I646328 B TWI646328 B TW I646328B
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
提供一種撓性管的支承裝置(5),其係具有:支承具本體(6),其安裝於撓性管的外周,該撓性管在剛性管之內部,以沿著管的軸線方向***;及複數個滾子(7),該等滾子是在支承具本體(6)與管之間,於管的周方向上隔著間隔進行設置,並且可自由旋轉地安裝於支承具本體(6)而與管的內面接觸,支承具本體(6)係具有:第一本體部(11),其形成有貫通孔(14),該貫通孔形成為較撓性管的外徑更大徑;及第二本體部(12),其包含有***於貫通孔(14)與撓性管之間的間隙的徑方向之楔部(21)。A flexible pipe support device (5) is provided with a support body (6) mounted on the outer periphery of the flexible pipe, the flexible pipe being inside the rigid pipe to be inserted along the axis direction of the pipe ; And a plurality of rollers (7), which are arranged between the support body (6) and the tube at intervals in the circumferential direction of the tube, and are rotatably mounted on the support body ( 6) In contact with the inner surface of the tube, the support body (6) has a first body portion (11) formed with a through hole (14), which is formed larger than the outer diameter of the flexible tube And a second body portion (12) including a radial wedge portion (21) inserted in a gap between the through hole (14) and the flexible tube.
Description
本發明係關於撓性管的支承装置。 本發明係依據2017年2月24日在日本申請之日本特願2017-033296號主張優先權,並在此援用其內容。The present invention relates to a support device for a flexible pipe.发明 The present invention claims priority based on Japanese Patent Application No. 2017-033296 filed in Japan on February 24, 2017, and the contents are incorporated herein by reference.
例如,垃圾焚燒用鍋爐,為了發現缺失,需要定期地測定鍋爐管的壁厚。作為一般的鍋爐管的壁厚測定方法,水浸UT法等為眾所皆知。For example, in order to detect a defect in a waste incineration boiler, it is necessary to periodically measure the wall thickness of the boiler tube. As a general method for measuring the wall thickness of boiler tubes, the water immersion UT method and the like are well known.
例如,在專利文獻1,記載有不會切斷鍋爐管而可測定鍋爐管的壁厚之技術。在專利文獻1所記載的技術中,採用導引進行厚度測定的超音波探針(感測器)之導引管。導引管係形成為管集箱之檢查孔導入至管集箱內後,再將其前端導入至鍋爐管。For example, Patent Document 1 describes a technique capable of measuring the wall thickness of a boiler tube without cutting the boiler tube. In the technique described in Patent Document 1, a guide tube that guides an ultrasonic probe (sensor) for thickness measurement is used. After the guide pipe is formed as the inspection hole of the header box, the front end is introduced into the boiler tube.
然後,從檢查孔側朝導引管內導入連接於感測器纜線(撓性管)之超音波探針,使超音波探針前進。藉此,超音波探針沿著導引管內前進後,被導引管導引而導入至鍋爐管內。Then, the ultrasonic probe connected to the sensor cable (flexible tube) is introduced into the guide tube from the inspection hole side, and the ultrasonic probe is advanced. Thereby, after the ultrasonic probe advances along the guide tube, it is guided by the guide tube and introduced into the boiler tube.
又,在專利文獻2記載有下述方法,亦即,為了減低感測器纜線與鍋爐管的摩擦,在感測器纜線安裝多點支承滾子(支承裝置)。此多點支承滾子係具有:供感測器纜線插通之複數個中空萬能接頭;及安裝於各別的萬能接頭之外周的複數個滾子。各個滾子係與管的內面接觸,並朝管軸方向滾動。 [先前技術文獻] [專利文獻]Further, Patent Document 2 describes a method in which a multi-point support roller (support device) is attached to the sensor cable in order to reduce friction between the sensor cable and the boiler tube. The multi-point supporting roller system includes: a plurality of hollow universal joints through which a sensor cable is inserted; and a plurality of rollers mounted on the outer periphery of each universal joint. Each roller is in contact with the inner surface of the tube and rolls in the direction of the tube axis. [Prior Art Literature] [Patent Literature]
[專利文獻1] 日本專利第4056679號公報 [專利文獻2] 日本特開平2-32252號公報[Patent Document 1] Japanese Patent No. 4056679 [Patent Document 2] Japanese Patent Laid-Open No. 2-22552
[發明所欲解決的課題][Problems to be Solved by the Invention]
又,在專利文獻2所記載的多點支承滾子,通過萬能接頭的內部之感測器纜線係形成為相當於萬能接頭的長度距離之部分不會彎曲之狀態。因此,感測器纜線的彎曲性變差(彎曲半徑變大),在作為檢查對象之鍋爐管的彎曲半徑小之情況,會有在途中被鉤住而無法***感測器之虞產生。In the multi-point support roller described in Patent Document 2, the sensor cable passing through the inside of the universal joint is formed so that a portion corresponding to the length distance of the universal joint is not bent. Therefore, the bendability of the sensor cable becomes worse (the bend radius becomes larger), and when the bend radius of the boiler tube to be inspected is small, it may be caught on the way and the sensor may not be inserted.
本發明之目的係在於針對支承以沿著管的軸線方向的方式***至剛性管(鍋爐管)的撓性管(感測器纜線)之支承裝置,提供能夠縮小撓性管的彎曲半徑之撓性管的支承裝置。 [用以解決課題之手段]An object of the present invention is to provide a support device for supporting a flexible pipe (sensor cable) inserted into a rigid pipe (boiler pipe) in a direction along the axis of the pipe, and to provide a device capable of reducing the bending radius of the flexible pipe Supporting device for flexible pipes. [Means to solve the problem]
若依據本發明的第一態樣,一種撓性管的支承裝置,係具有:支承具本體,其安裝於撓性管的外周,該撓性管在剛性管之內部,以沿著前述管的軸線方向***;及複數個滾子,該等滾子是在前述支承具本體與前述管之間,於前述管的周方向上隔著間隔進行設置,並且可自由旋轉地安裝 於前述支承具本體而與前述管的內面接觸,前述支承具本體係具有:第一本體部,其形成有貫通孔,該貫通孔形成為較前述撓性管的外徑更大徑;及第二本體部,其包含有***於前述貫通孔與前述撓性管之間隙的徑方向之楔部。According to a first aspect of the present invention, a flexible tube support device includes a support body mounted on the outer periphery of the flexible tube, the flexible tube being inside the rigid tube so as to run along the tube. Inserted in the axial direction; and a plurality of rollers, which are arranged between the support body and the tube at intervals in the circumferential direction of the tube, and are rotatably mounted on the support body In contact with the inner surface of the tube, the support system has: a first body portion formed with a through hole formed to have a larger diameter than the outer diameter of the flexible tube; and a second body portion, It includes a wedge portion inserted in a radial direction of a gap between the through hole and the flexible tube.
若依據這樣的結構,藉由楔部***至間隙而楔部按壓於撓性管的外周面,能夠將支承具本體固定於撓性管。又,藉由作成這樣的結構,能夠縮小安裝有滾子的支承具本體之軸線方向的尺寸,可縮小撓性管的彎曲半徑。According to such a configuration, the support body can be fixed to the flexible tube by inserting the wedge portion into the gap and pressing the wedge portion against the outer peripheral surface of the flexible tube. In addition, by adopting such a structure, it is possible to reduce the size in the axial direction of the supporter body to which the roller is mounted, and to reduce the bending radius of the flexible tube.
在前述撓性管的支承裝置,其中,前述支承具本體的前述軸線方向之尺寸是較前述滾子的外徑小。In the support device for the flexible tube, the dimension in the axial direction of the support body is smaller than an outer diameter of the roller.
若依據這樣的結構,可防止:支承具本體與撓性管接觸而成為摩擦阻抗。又,在撓性管,可縮短藉由支承具本體所拘束之長度。According to this structure, it is possible to prevent the support body from coming into contact with the flexible tube to become frictional resistance. In addition, the flexible tube can shorten the length restricted by the support body.
在前述撓性管的支承裝置,其中,前述貫通孔係形成為朝前述軸線方向一方側逐漸擴徑之錐狀,前述楔部係具有:朝前述軸線方向一方側逐漸擴徑之錐狀的外周面;及具有僅較前述撓性管的外徑稍大之內徑的內周面。In the support device for a flexible tube, the through-hole is formed in a tapered shape gradually increasing in diameter toward one side in the axial direction, and the wedge portion has a tapered outer circumference gradually increasing in diameter toward one side in the axial direction. Surface; and an inner peripheral surface having an inner diameter slightly larger than the outer diameter of the flexible tube.
若依據這樣的結構,能夠更容易將楔部***到貫通孔與撓性管之間的間隙。According to this structure, it is possible to more easily insert the wedge portion into the gap between the through hole and the flexible tube.
在前述撓性管的支承裝置,其中,前述第一本體部係具有軸承部,該軸承部是配置於在周方向上相鄰的前述滾子彼此之間,且形成有供前述滾子的旋轉軸之端部從軸線方向***之溝槽,前述第二本體部係具有從軸線方向保持已被***到前述軸承部之前述旋轉軸的保持部。In the support device for the flexible tube, the first body portion includes a bearing portion which is disposed between the rollers adjacent to each other in the circumferential direction and is formed to rotate the roller. The shaft has a groove inserted in an end portion of the shaft from the axial direction, and the second body portion includes a holding portion that holds the rotary shaft inserted into the bearing portion from the axial direction.
若依據這樣的結構,能夠以更簡單的構造保持滾子。 [發明效果]According to such a structure, a roller can be hold | maintained with a simpler structure. [Inventive effect]
若依據本發明,藉由楔部***至間隙而楔部按壓於撓性管的外周面,能夠將支承具本體固定於撓性管。又,藉由作成這樣的結構,能夠縮小安裝有滾子的支承具本體之軸線方向的尺寸,可縮小撓性管的彎曲半徑。According to the present invention, the support body can be fixed to the flexible tube by inserting the wedge portion into the gap and pressing the wedge portion against the outer peripheral surface of the flexible tube. In addition, by adopting such a structure, it is possible to reduce the size in the axial direction of the supporter body to which the roller is mounted, and to reduce the bending radius of the flexible tube.
以下,參照圖面等詳細地說明關於具有本發明的撓性管的支承裝置5之管壁厚度測定裝置1的實施形態。 如圖1所示,本實施形態之管壁厚度測定裝置1係測定鍋爐50之鍋爐管52的壁厚時使用。管壁厚度測定裝置1係使用例如超音波探針等的感測器,測定鍋爐管52的壁厚。Hereinafter, an embodiment of the tube wall thickness measuring device 1 with the support device 5 of the flexible tube of the present invention will be described in detail with reference to the drawings. (1) As shown in FIG. 1, the tube wall thickness measuring device 1 of this embodiment is used when measuring the wall thickness of the boiler tube 52 of the boiler 50. The tube wall thickness measuring device 1 measures the wall thickness of the boiler tube 52 using a sensor such as an ultrasonic probe.
鍋爐50係具備有管集箱51和複數個鍋爐管52。鍋爐管52係成為水蒸氣的流路之複數個剛性管,沿著管集箱51之延伸方向排列且一端連接於管集箱51。各自的鍋爐管52係與管集箱51連通,分別延伸成對管集箱51呈正交。The boiler 50 includes a header manifold 51 and a plurality of boiler tubes 52. The boiler tube 52 is a plurality of rigid tubes that serve as a flow path for water vapor, is arranged along the extending direction of the tube header 51 and is connected to the tube header 51 at one end. The respective boiler tubes 52 are in communication with the tube header 51 and extend to be orthogonal to the tube header 51, respectively.
在管集箱51,作為檢驗用的孔之檢查孔53在管集箱51的延伸方向上分離並形成複數個開口。檢查孔53與鍋爐管52係配置成相互成為扭轉的位置關係。 鍋爐管52係具有:直線狀延伸的部分;和將直線狀延伸的部分彼此連接之彎曲部52a。鍋爐管52的內徑係為例如68mm。 感測器探針2係經由檢查孔53及管集箱51,導入至鍋爐管52。In the header box 51, inspection holes 53 serving as inspection holes are separated in the extending direction of the header box 51 to form a plurality of openings. The inspection hole 53 and the boiler tube 52 are arranged in a mutually twisted positional relationship. The boiler tube 52 has a linearly extending portion and a curved portion 52a connecting the linearly extending portions to each other. The inner diameter of the boiler tube 52 is, for example, 68 mm. The radon sensor probe 2 is introduced into the boiler tube 52 through the inspection hole 53 and the tube header 51.
其次,說明關於測定作為檢查對象之鍋爐管52的壁厚的管壁厚度測定裝置1。 管壁厚度測定裝置1係具有:資料收集機器31;將資料收集機器31所收集到的資料進行分析之資料分析裝置32;與資料收集機器31連接之纜線捲取裝置33;從纜線捲取裝置33排出之作為撓性管的纜線30;安裝於纜線30的前端之作為感測器的感測器探針2;安裝於纜線30的外周之支承裝置5;以及感測器探針2的導引裝置之導引管34。Next, a tube wall thickness measuring device 1 for measuring the wall thickness of the boiler tube 52 to be inspected will be described. The pipe wall thickness measuring device 1 includes: a data collection device 31; a data analysis device 32 that analyzes the data collected by the data collection device 31; a cable winding device 33 connected to the data collection device 31; The cable 30 as a flexible tube discharged from the device 33; the sensor probe 2 as a sensor installed at the front end of the cable 30; the support device 5 installed on the outer periphery of the cable 30; and the sensor The guide tube 34 of the guide device of the probe 2.
資料收集機器31係經由纜線30輸入藉由感測器探針2所測定到的鍋爐管52之厚度資料的機器。亦即,資料收集機器31係具有收集鍋爐管52的厚度資料之功能。 資料分析裝置32係為了將資料收集機器31收集到的鍋爐管52之厚度資料進行分析所使用之電腦。The data collection device 31 is a device that inputs the thickness data of the boiler tube 52 measured by the sensor probe 2 via the cable 30. That is, the data collection machine 31 has a function of collecting the thickness data of the boiler tube 52. The data analysis device 32 is a computer used for analyzing the thickness data of the boiler tube 52 collected by the data collection device 31.
纜線30係***到剛性的鍋爐管52之內部,形成為沿著鍋爐管52之軸線方向Da。纜線30為例如由金屬、塑膠等所構成之長條狀的撓性管,在全長範圍可進行彎曲。纜線30的外徑為例如12mm。纜線30係內裝有將感測器探針2與資料收集機器31連接之資料訊號配線、當進行管壁厚度測定時以水壓使感測器本體部3旋轉用之供水軟管等。 感測器探針2係設在纜線30的前端部,藉由發出超音波,測定鍋爐管52的壁厚資料。感測器探針2係具有:圓筒狀的感測器本體部3;及將感測器本體部3保持於鍋爐管52內的中心位置之定心機構4。再者,定心機構亦可進行縮放。The cable 30 is inserted into the rigid boiler tube 52 and is formed along the axial direction Da of the boiler tube 52. The cable 30 is a long flexible tube made of, for example, metal, plastic, or the like, and can be bent over its entire length. The outer diameter of the cable 30 is, for example, 12 mm. The cable 30 is provided with a data signal wiring connecting the sensor probe 2 and the data collection device 31, and a water supply hose for rotating the sensor body 3 with water pressure when measuring the wall thickness of the pipe. The radon sensor probe 2 is provided at the front end portion of the cable 30 and emits an ultrasonic wave to measure the wall thickness data of the boiler tube 52. The sensor probe 2 includes a cylindrical sensor body portion 3 and a centering mechanism 4 that holds the sensor body portion 3 at a center position in the boiler tube 52. Furthermore, the centering mechanism can also be scaled.
纜線捲取裝置33係連接於纜線30的後端,用來捲取已被***到鍋爐管52內的纜線30。The cable take-up device 33 is connected to the rear end of the cable 30 to take up the cable 30 that has been inserted into the boiler tube 52.
導引管34係用來將纜線30及感測器探針2導入鍋爐管52之管,在進行鍋爐管52的壁厚之測定前,配置於管集箱51內。導引管34係配置成將相互成為扭轉的位置關係之檢查孔53與鍋爐管52予以連接。The guide tube 34 is a tube for introducing the cable 30 and the sensor probe 2 into the boiler tube 52, and is arranged in the tube header 51 before the wall thickness of the boiler tube 52 is measured. The guide pipe 34 is arranged to connect the inspection hole 53 and the boiler pipe 52 to each other in a twisted positional relationship.
導引管34係由呈波紋狀的可撓性軟管所構成。藉此,導引管34係可自由伸縮且可自由彎曲。導引管34係在當導引管34已經彎曲時,在外力未作用之情況下能夠保持彎曲狀態。導引管34係從檢查孔53內***至管集箱51內,在管集箱51內一邊彎曲且一邊延伸,其前端連接於鍋爐管52。The guide tube 34 is formed of a flexible hose having a corrugated shape. Thereby, the guide tube 34 is freely expandable and contractible. The guide tube 34 is capable of maintaining a curved state when an external force is not applied when the guide tube 34 has been bent. The guide pipe 34 is inserted into the tube header 51 from the inspection hole 53, and is bent and extended in the tube header 51. The leading end of the guide tube 34 is connected to the boiler tube 52.
支承裝置5係支承纜線30,使纜線30與鍋爐管52之摩擦減少之裝置。如圖2所示,支承裝置5係支承纜線30,使纜線30位於鍋爐管52的徑方向之中心位置。 複數個支承裝置5係在纜線30的感測器探針2側之端部附近,隔著預定間隔(例如50mm)進行安裝。The supporting device 5 is a device that supports the cable 30 and reduces the friction between the cable 30 and the boiler tube 52. As shown in FIG. 2, the support device 5 supports the cable 30 so that the cable 30 is located at the center position in the radial direction of the boiler tube 52.支承 A plurality of support devices 5 are mounted near the end of the sensor probe 2 side of the cable 30 at predetermined intervals (for example, 50 mm).
如圖2及圖3所示,本實施形態的支承裝置5係具備有:安裝於纜線30的外周之支承具本體6;及安裝於支承具本體6之複數個滾子7。支承具本體6係不可朝纜線30的延伸方向移動的方式固定於纜線30。 複數個滾子7係在支承具本體6與鍋爐管52之間,隔著間隔設置於鍋爐管52的周方向上。滾子7係可自由旋轉地安裝於支承具本體6之圓柱狀的構件。滾子7的旋轉軸9係朝與纜線30的軸線A正交之方向延伸,滾子7係朝軸線方向Da滾動。As shown in FIGS. 2 and 3, the support device 5 according to this embodiment includes a support body 6 attached to the outer periphery of the cable 30 and a plurality of rollers 7 attached to the support body 6. The support body 6 is fixed to the cable 30 so as not to be movable in the extending direction of the cable 30. The plurality of rollers 7 are provided between the support body 6 and the boiler tube 52, and are provided in the circumferential direction of the boiler tube 52 at intervals. The roller 7 is a cylindrical member that is rotatably attached to the support body 6. The rotation axis 9 of the roller 7 extends in a direction orthogonal to the axis A of the cable 30, and the roller 7 rolls in the axis direction Da.
滾子7係具有:圓柱狀的滾子本體8;及與滾子本體8的軸線形成為同軸之旋轉軸9。 滾子本體8的外周面8a係包含滾子本體8的軸線之斷面形狀呈圓弧狀,使得隨著朝向端部(旋轉軸9的延伸方向之端部)逐漸縮徑。滾子本體8的外周面8a之斷面形狀,係形成為沿著鍋爐管52的內周面,或成為較鍋爐管52的內周面之半徑更小的曲率半徑。 各自的滾子本體8之至少一部分係接觸於鍋爐管52的內周面。The roller 7 includes a cylindrical roller body 8 and a rotation shaft 9 formed coaxially with the axis of the roller body 8. The outer peripheral surface 8a of the roller body 8 has a circular arc shape in cross section including the axis of the roller body 8 so that the diameter gradually decreases as it goes toward the end (the end in the direction in which the rotation shaft 9 extends). The cross-sectional shape of the outer peripheral surface 8 a of the roller body 8 is formed along the inner peripheral surface of the boiler tube 52 or has a smaller radius of curvature than the radius of the inner peripheral surface of the boiler tube 52.至少 At least a part of each roller body 8 is in contact with the inner peripheral surface of the boiler tube 52.
支承具本體6係具有:形成有較纜線30的外徑更大徑的貫通孔14(參照圖4及圖5)之第一本體部11;及具有***到貫通孔14與纜線30之間的徑方向之間隙(參照圖9)的楔部21(參照圖7)之第二本體部12。支承具本體6係藉由在對第一本體部11的貫通孔14***第二本體部12的楔部21後再將第二本體部12旋入固定於第一本體部11來組裝。The support body 6 includes a first body portion 11 formed with a through hole 14 (see FIGS. 4 and 5) having a larger diameter than the outer diameter of the cable 30, and a first body portion 11 inserted into the through hole 14 and the cable 30. The second body portion 12 of the wedge portion 21 (see FIG. 7) of the gap in the radial direction (see FIG. 9). The support body 6 is assembled by inserting the wedge portion 21 of the second body portion 12 into the through hole 14 of the first body portion 11 and screwing the second body portion 12 to the first body portion 11.
如圖4及圖5所示,第一本體部11係具有:形成有貫通孔14之筒部13;及從筒部13朝以軸線A為中心之徑方向外側突出的複數個軸承部15。在軸承部15,形成有溝16,其從軸線方向另一方側Da2支承滾子7的旋轉軸9(參照圖3),並且約束旋轉軸9的徑方向及周方向的移動。As shown in FIGS. 4 and 5, the first body portion 11 includes a cylindrical portion 13 in which a through hole 14 is formed, and a plurality of bearing portions 15 protruding outward from the cylindrical portion 13 in a radial direction centered on the axis A. A groove 16 is formed in the bearing portion 15. The groove 16 supports the rotation shaft 9 (see FIG. 3) of the roller 7 from the other side Da2 in the axial direction, and restricts movement of the rotation shaft 9 in the radial direction and the circumferential direction.
軸承部15係具有朝向軸線方向一方側Da1之作為平坦面的第一平坦面15a。溝16係以朝軸線方向另一方側Da2成為凹狀的方式形成於第一平坦面15a。形成於在周方向上相鄰的軸承部15之一對溝16相互協調,用以支承旋轉軸9。藉此,滾子7配置於在周方向相鄰的軸承部15之間。The bearing portion 15 has a first flat surface 15 a as a flat surface that faces the one side Da1 in the axial direction. The groove 16 is formed in the first flat surface 15 a so as to be concave toward the other side Da2 in the axial direction. A pair of grooves 16 formed in one of the bearing portions 15 adjacent in the circumferential direction are coordinated with each other to support the rotation shaft 9. Thereby, the roller 7 is arrange | positioned between the bearing parts 15 adjacent in the circumferential direction.
在第一本體部11之筒部13的朝向軸線方向一方側Da1的面,形成有複數個螺絲孔17。螺絲孔17係從朝軸線方向一方側Da1之面,朝軸線方向另一方側Da2形成。A plurality of screw holes 17 are formed on a surface of the cylindrical portion 13 of the first body portion 11 that faces one side Da1 in the axial direction. The screw holes 17 are formed from a surface facing one side Da1 in the axial direction and toward the other side Da2 in the axial direction.
貫通孔14的內周面係呈朝軸線方向一方側Da1逐漸擴徑之錐狀。換言之,貫通孔14的內徑係朝軸線方向一方側Da1逐漸擴徑。貫通孔14的內周面之錐面角度係為例如1/10~1/20。在貫通孔14的軸線方向另一方側Da2之端部,形成有作為倒角之裕度部18。裕度部18的形狀,可為斜面倒角,亦可為圓形倒角。The inner peripheral surface of the through-hole 14 has a tapered shape that gradually increases in diameter toward one side Da1 in the axial direction. In other words, the inner diameter of the through-hole 14 gradually increases toward the axial direction side Da1. The taper angle of the inner peripheral surface of the through hole 14 is, for example, 1/10 to 1/20. A margin portion 18 as a chamfer is formed at an end portion on the other side Da2 in the axial direction of the through hole 14. The shape of the margin portion 18 may be a chamfered chamfer or a round chamfer.
如圖6及圖7所示,第二本體部12係具有:環狀的環部20;較環部20的內周側端部更朝軸線方向另一方側Da2突出之圓筒狀楔部21;及從環部20朝以軸線A為中心之徑方向外側突出的複數個保持部22。 保持部22係具有:與第一本體部11的軸承部15之第一平坦面15a形成面接觸之平坦面亦即第二平坦面22a。第二平坦面22a係為朝向軸線方向另一方側Da2之面。 在環部20,形成有與第一本體部11的筒部13之螺絲孔17相對應的複數個孔23。孔23係形成為與要使用的螺絲25相對應之形狀。本實施形態,使用盤狀螺絲作為螺絲25(參照圖8),故,在孔23實施有埋頭孔加工。As shown in FIGS. 6 and 7, the second body portion 12 includes: a ring-shaped ring portion 20; and a cylindrical wedge portion 21 protruding toward the other side Da2 in the axial direction than the inner peripheral side end portion of the ring portion 20. And a plurality of holding portions 22 protruding outward from the ring portion 20 in the radial direction centered on the axis A. The cymbal holding portion 22 includes a second flat surface 22 a which is a flat surface that is in surface contact with the first flat surface 15 a of the bearing portion 15 of the first body portion 11. The second flat surface 22a is a surface facing the other side Da2 in the axial direction. A plurality of holes 23 corresponding to the screw holes 17 of the cylindrical portion 13 of the first body portion 11 are formed in the ring portion 20. The hole 23 is formed in a shape corresponding to the screw 25 to be used. In the present embodiment, a pan-shaped screw is used as the screw 25 (see FIG. 8). Therefore, a countersinking process is performed on the hole 23.
楔部21係具有:朝軸線方向一方側Da1逐漸擴徑之錐狀的外周面21a;及具有較纜線30(參照圖2)的外徑稍大之內徑的內周面21b。換言之,楔部21的外周面21a的外徑係隨著朝軸線方向一方側Da1逐漸擴徑。外周面之錐面角度係與第一本體部11的筒部13之貫通孔14的內周面之錐面角度相同。The wedge portion 21 includes a tapered outer peripheral surface 21 a that gradually increases in diameter toward one side Da1 in the axial direction, and an inner peripheral surface 21 b having an inner diameter slightly larger than the outer diameter of the cable 30 (see FIG. 2). In other words, the outer diameter of the outer peripheral surface 21a of the wedge portion 21 gradually increases as it goes toward one side Da1 in the axial direction. The taper angle of the outer peripheral surface is the same as the taper angle of the inner peripheral surface of the through hole 14 of the cylindrical portion 13 of the first body portion 11.
如圖9所示,在楔部21的外周面21a與保持部22的第二平坦面22a之間的交叉部,以遍及周方向的全周範圍的方式形成有狹縫24。狹縫24係形成為隨著從外周面21a與第二平坦面22a之間的交叉部朝向徑方向內側,向軸線方向一方側Da1傾斜之溝。As shown in FIG. 9, a slit 24 is formed at an intersection between the outer peripheral surface 21 a of the wedge portion 21 and the second flat surface 22 a of the holding portion 22 so as to extend over the entire circumference in the circumferential direction. The slit 24 is formed as a groove inclined toward the axial direction side Da1 as it goes from the intersection between the outer peripheral surface 21a and the second flat surface 22a to the inside in the radial direction.
如圖2所示,支承具本體6(第一本體部11、第二本體部12),其軸線方向Da之尺寸L形成為較滾子7的直徑D更小。例如,滾子7的直徑為14mm、支承部本體的軸線方向Da之厚度係L=13mm。As shown in FIG. 2, the support body 6 (the first body portion 11 and the second body portion 12) has a dimension L in the axial direction Da that is smaller than a diameter D of the roller 7. For example, the diameter of the roller 7 is 14 mm, and the thickness Da in the axial direction Da of the support body is L = 13 mm.
其次,說明關於支承裝置5的組裝方法。 圖8係支承裝置5的分解圖。 支承裝置5的組裝方法,具有:將纜線30***至第一本體部11的貫通孔14之纜線***製程;將滾子7的旋轉軸9***至第一本體部11的溝16之滾子旋轉軸***製程;將第二本體部12的楔部21壓入至第一本體部11的貫通孔14與纜線30的外周面30a之間的楔部壓入製程;及使用螺絲25,將第一本體部11與第二本體部12固定之螺絲固定製程。Next, a method for assembling the support device 5 will be described. FIG. 8 is an exploded view of the supporting device 5. The assembling method of the support device 5 includes a cable insertion process of inserting the cable 30 into the through hole 14 of the first body portion 11, and inserting the rotation shaft 9 of the roller 7 into the groove 16 of the first body portion 11. A sub-rotation shaft inserting process; pressing the wedge part 21 of the second body part 12 into the wedge part pressing process between the through hole 14 of the first body part 11 and the outer peripheral surface 30a of the cable 30; and using a screw 25, The screw fixing process for fixing the first body portion 11 and the second body portion 12.
如圖9所示,在楔部壓入製程,對貫通孔14的內周面與纜線30的外周面30a之間的間隙G,***楔部21。藉此,楔部21的內周面21b與纜線30的外周面30a形成面接觸,並且楔部21按壓纜線30的外周面。 在螺絲固定製程,第二本體部12的第二平坦面22a與第一本體部11的第一平坦面15a接近形成為面接觸。藉此,楔部21可進一步咬入至貫通孔14與纜線30之間的間隙G。藉由楔部21咬入至間隙G,使得支承裝置5(支承具本體6)變得不能朝軸線方向Da移動。 又,藉由第二本體部12的第二平坦面22a覆蓋第一本體部11之形成有溝16的第一平坦面15a,使得滾子7可自由旋轉地被安裝。As shown in FIG. 9, the wedge portion 21 is inserted into the gap G between the inner peripheral surface of the through hole 14 and the outer peripheral surface 30 a of the cable 30 in the wedge portion press-in process. Thereby, the inner peripheral surface 21b of the wedge portion 21 is brought into surface contact with the outer peripheral surface 30a of the cable 30, and the wedge portion 21 presses the outer peripheral surface of the cable 30. (2) In the screw fixing process, the second flat surface 22a of the second body portion 12 and the first flat surface 15a of the first body portion 11 are brought into close contact with each other. Thereby, the wedge portion 21 can further bite into the gap G between the through hole 14 and the cable 30. The wedge portion 21 bites into the gap G, so that the support device 5 (support body 6) cannot move in the axial direction Da. In addition, the second flat surface 22a of the second body portion 12 covers the first flat surface 15a of the first body portion 11 in which the groove 16 is formed, so that the roller 7 is rotatably mounted.
若依據前述實施形態,藉由楔部21***至貫通孔14與纜線30之間的間隙G而楔部21按壓纜線30的外周面30a,能夠將支承具本體6固定於纜線30。又,藉由作成這樣的結構,能夠縮小安裝有滾子7的支承具本體6之軸線方向Da的尺寸L(參照圖2),可縮小纜線30的彎曲半徑。According to the aforementioned embodiment, the support body 6 can be fixed to the cable 30 by the wedge portion 21 being inserted into the gap G between the through hole 14 and the cable 30 while the wedge portion 21 presses the outer peripheral surface 30 a of the cable 30. Moreover, by having such a structure, the dimension L (refer FIG. 2) of the axial direction Da of the supporter main body 6 with which the roller 7 was attached can be made small, and the bending radius of the cable 30 can be made small.
又,藉由將支承具本體6的軸線方向Da的尺寸作成較滾子7的外徑小,能夠防止支承具本體6接觸到鍋爐管52而成為摩擦阻抗的情況產生。 又,在纜線30,可縮短藉由支承具本體6所拘束之長度。藉此,如圖10所示,可縮小纜線30之彎曲半徑。圖10所示的例子係為在直徑12mm的纜線30,以相互的間隔S成為50mm的方式安裝支承裝置5之例子。作為參考,纜線30的最小曲率半徑R係為38.4mm。In addition, by making the dimension of the support body 6 in the axial direction Da smaller than the outer diameter of the roller 7, it is possible to prevent the support body 6 from coming into contact with the boiler tube 52 to cause frictional resistance. In addition, in the cable 30, the length restricted by the support body 6 can be shortened. Thereby, as shown in FIG. 10, the bending radius of the cable 30 can be reduced. The example shown in FIG. 10 is an example in which the support device 5 is attached to the cable 30 having a diameter of 12 mm so that the interval S between them becomes 50 mm. For reference, the minimum radius of curvature R of the cable 30 is 38.4 mm.
又,藉由作成在錐狀的貫通孔14壓入與該形狀對應的形狀之楔部21的結構,能夠將楔部21更容易地***到貫通孔14與纜線30之間的間隙G。 又,藉由作成對第一本體部11的軸承部15之溝16***滾子7的旋轉軸9,並以第二本體部12的保持部22保持旋轉軸9之構造,能夠以更簡單的構造保持滾子7。In addition, the wedge portion 21 having a shape corresponding to the shape is press-fitted into the tapered through hole 14 so that the wedge portion 21 can be more easily inserted into the gap G between the through hole 14 and the cable 30. In addition, the structure in which the groove 16 of the bearing portion 15 of the first body portion 11 is inserted into the rotation shaft 9 of the roller 7 and the rotation shaft 9 is held by the holding portion 22 of the second body portion 12 can be made simpler. Structure holding roller 7.
又,藉由在支承具本體6的第一本體部11形成裕度部18,能夠進一步縮短藉由支承具本體6所拘束的纜線30之長度,能夠使纜線30更容易彎曲。 又,藉由在第二本體部12的楔部21與保持部22之間形成狹縫24,使得楔部21變得容易彎曲。藉此,可使楔部21容易咬入至間隙G。In addition, by forming the margin portion 18 in the first body portion 11 of the support body 6, the length of the cable 30 restrained by the support body 6 can be further shortened, and the cable 30 can be bent more easily. Furthermore, by forming a slit 24 between the wedge portion 21 and the holding portion 22 of the second body portion 12, the wedge portion 21 is easily bent. Thereby, the wedge portion 21 can be easily bitten into the gap G.
以上,參照圖面詳細說明了關於本發明的實施形態,但具體的結構不限於此實施形態,亦包含不超出本發明的技術思想範圍之設計變更等。 再者,在前述實施形態,將安裝於各別的支承裝置5之滾子7的數量設為6個,但不限於此。滾子7的數量為3以上即可。 又,在前述實施形態,作成為楔部21連續於周方向上之形狀,但不限於此,亦可在周方向上隔著間隔設置複數個楔部21。 [產業上的利用可能性]The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and also includes design changes that do not exceed the scope of the technical idea of the present invention. In addition, in the said embodiment, although the number of the rollers 7 attached to each support device 5 was set to six, it is not limited to this. The number of the rollers 7 may be 3 or more. In addition, in the aforementioned embodiment, the wedge portion 21 is formed continuously in the circumferential direction, but it is not limited to this, and a plurality of wedge portions 21 may be provided in the circumferential direction at intervals. [Industrial availability]
若依據前述撓性管的支承裝置的話,針對支承以沿著管的軸線方向的方式***至剛性管(鍋爐管)的撓性管(感測器纜線)之支承裝置,能夠縮小撓性管的彎曲半徑。According to the flexible tube support device, the flexible tube (sensor cable) support device for supporting a flexible tube (sensor cable) inserted into a rigid tube (boiler tube) along the tube axis direction can reduce the flexible tube. Bending radius.
1:管壁厚度測定裝置 2:感測器探針 3:感測器本體部 4:電刷 5:支承裝置 6:支承具本體 7:滾子 8:滾子本體 9:旋轉軸 11:第1本體部 12:第2本體部 13:筒部 14:貫通孔 15:軸承部 15a:第一平坦面 16:溝 17:螺絲孔 18:裕度部 20:環部 21:楔部 22:保持部 22a:第二平坦面 23:孔 24:狹縫部 25:螺絲 30:纜線 31:資料收集機器 32:資料分析裝置 33:纜線捲取裝置 34:導引管 50:鍋爐 51:管集箱 52:鍋爐管 52a:彎曲部 53:檢查孔 A:軸線 Da:軸線方向 Da1:軸線方向一方側 Da2:軸線方向另一方側1: Tube wall thickness measuring device 2: Sensor probe 3: Sensor body 4: Brush 5: Support device 6: Support body 7: Roller 8: Roller body 9: Rotary shaft 11: Section 1 Body portion 12: Second body portion 13: Tube portion 14: Through hole 15: Bearing portion 15a: First flat surface 16: Groove 17: Screw hole 18: Margin portion 20: Ring portion 21: Wedge portion 22: Holding Section 22a: second flat surface 23: hole 24: slit section 25: screw 30: cable 31: data collection device 32: data analysis device 33: cable winding device 34: guide tube 50: boiler 51: tube set Box 52: Boiler tube 52a: Bend 53: Inspection hole A: Axis Da: Axis direction Da1: One side in the axis direction Da2: Other side in the axis direction
圖1係本發明的實施形態之管壁厚度測定裝置及鍋爐的全體概略圖。 圖2係本發明的實施形態之管壁厚度測定裝置的感測器探針及撓性管的支承裝置之側面圖。 圖3係從本發明的實施形態之撓性管的支承裝置的軸線方向觀看之側面圖。 圖4係從本發明的實施形態之撓性管的支承裝置的鍋爐管之軸線方向觀看之側面圖。 圖5係圖4之V-V斷面圖。 圖6係從本發明的實施形態之撓性管的支承裝置的鍋爐管之軸線方向觀看之側面圖。 圖7係圖6之VII-VII斷面圖。 圖8係本發明的實施形態之撓性管的支承裝置的分解圖。 圖9係說明本發明的實施形態之撓性管的支承裝置的組裝方法之圖。 圖10係說明本發明的實施形態之撓性管的支承裝置的作用之圖。FIG. 1 is an overall schematic view of a tube wall thickness measuring device and a boiler according to the embodiment of the present invention. FIG. 2 is a side view of a sensor probe and a flexible tube supporting device of a tube wall thickness measuring device according to an embodiment of the present invention. FIG. 3 is a side view of the flexible tube supporting device according to the embodiment of the present invention when viewed in the axial direction. FIG. 4 is a side view of the boiler tube viewed from the axial direction of the flexible tube support device according to the embodiment of the present invention. FIG. 5 is a sectional view taken along the line V-V in FIG. 4. FIG. 6 is a side view of the boiler tube viewed from the axial direction of the flexible tube support device according to the embodiment of the present invention. FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6. FIG. 8 is an exploded view of a flexible tube supporting device according to an embodiment of the present invention. Fig. 9 is a diagram illustrating a method of assembling a flexible tube supporting device according to an embodiment of the present invention. Fig. 10 is a diagram for explaining the operation of the flexible tube supporting device according to the embodiment of the present invention.
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JP2017033296A JP6165375B1 (en) | 2017-02-24 | 2017-02-24 | Flexible tube support device |
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TW107105960A TWI646328B (en) | 2017-02-24 | 2018-02-22 | Flexible tube support device |
Country Status (5)
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JP (1) | JP6165375B1 (en) |
KR (2) | KR20180098151A (en) |
CN (1) | CN108507506B (en) |
SG (1) | SG10201801440UA (en) |
TW (1) | TWI646328B (en) |
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BR102018069242B1 (en) * | 2018-09-21 | 2022-01-18 | Petróleo Brasileiro S.A. - Petrobras | SYSTEM AND METHOD DETECTION OF FLOODING IN A FLEXIBLE PIPE FROM A CONNECTOR OF THE FLEXIBLE PIPE |
CN116699342B (en) * | 2023-08-08 | 2023-11-14 | 湖南湘联电缆有限公司 | Pressurizing equipment for cable pressure resistance detection |
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JPH10100897A (en) * | 1996-09-30 | 1998-04-21 | Japan Atom Energy Res Inst | Moving device in piping, and working device in piping equipped with this moving device |
US5816293A (en) * | 1996-03-27 | 1998-10-06 | Kiest, Jr.; Larry W. | Apparatus for installation of a liner within a pipeline |
JP2016080010A (en) * | 2014-10-10 | 2016-05-16 | 株式会社東芝 | In-pipe transfer device |
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JPH0625755B2 (en) * | 1988-07-22 | 1994-04-06 | 動力炉・核燃料開発事業団 | Ultrasonic flaw detector in branch pipe |
JP3055725B2 (en) * | 1991-11-15 | 2000-06-26 | 東京瓦斯株式会社 | In-pipe inspection system |
JP4056679B2 (en) | 2000-04-26 | 2008-03-05 | バブコック日立株式会社 | Pipe inspection system and inspection method |
JP5171753B2 (en) * | 2009-07-23 | 2013-03-27 | 新日本非破壊検査株式会社 | Pipe thinning measuring device and pipe thinning measuring method using the same |
KR101736498B1 (en) * | 2010-03-18 | 2017-05-17 | 엘에스전선 주식회사 | Connecting Device of Submarine Cable |
US8805579B2 (en) * | 2011-02-19 | 2014-08-12 | Richard Arthur Skrinde | Submersible robotically operable vehicle system for infrastructure maintenance and inspection |
TWI600841B (en) * | 2012-06-07 | 2017-10-01 | Hephaist Seiko Co Ltd | The outer cylinder is divided into three linear bearings |
JP5957421B2 (en) * | 2013-07-02 | 2016-07-27 | 三菱マテリアル株式会社 | Boiler water pipe thickness measurement method |
KR101670072B1 (en) * | 2014-04-14 | 2016-10-27 | 주식회사 지앤지테크놀러지 | Apparatus for carrier cleaning machine include high-pressure injector and method for cleaning well using the same |
GB201421421D0 (en) * | 2014-12-02 | 2015-01-14 | Ge Oil & Gas Uk Ltd | Angular displacement of flexible pipe |
-
2017
- 2017-02-24 JP JP2017033296A patent/JP6165375B1/en active Active
-
2018
- 2018-02-22 TW TW107105960A patent/TWI646328B/en active
- 2018-02-22 KR KR1020180021033A patent/KR20180098151A/en active Application Filing
- 2018-02-22 CN CN201810154480.5A patent/CN108507506B/en active Active
- 2018-03-20 SG SG10201801440UA patent/SG10201801440UA/en unknown
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2019
- 2019-02-25 KR KR1020190021777A patent/KR101985643B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5816293A (en) * | 1996-03-27 | 1998-10-06 | Kiest, Jr.; Larry W. | Apparatus for installation of a liner within a pipeline |
JPH10100897A (en) * | 1996-09-30 | 1998-04-21 | Japan Atom Energy Res Inst | Moving device in piping, and working device in piping equipped with this moving device |
JP2016080010A (en) * | 2014-10-10 | 2016-05-16 | 株式会社東芝 | In-pipe transfer device |
Also Published As
Publication number | Publication date |
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SG10201801440UA (en) | 2018-09-27 |
JP2018138881A (en) | 2018-09-06 |
CN108507506B (en) | 2019-05-31 |
KR20190025585A (en) | 2019-03-11 |
TW201837463A (en) | 2018-10-16 |
JP6165375B1 (en) | 2017-07-19 |
CN108507506A (en) | 2018-09-07 |
KR101985643B1 (en) | 2019-06-03 |
KR20180098151A (en) | 2018-09-03 |
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