[go: up one dir, main page]

WO2017014652A1 - Dispositif de mesure - Google Patents

Dispositif de mesure Download PDF

Info

Publication number
WO2017014652A1
WO2017014652A1 PCT/PL2015/000119 PL2015000119W WO2017014652A1 WO 2017014652 A1 WO2017014652 A1 WO 2017014652A1 PL 2015000119 W PL2015000119 W PL 2015000119W WO 2017014652 A1 WO2017014652 A1 WO 2017014652A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
ring
measuring
jaw
boom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/PL2015/000119
Other languages
English (en)
Inventor
Piotr PYRTEK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
White Sc Sp ZOO
Original Assignee
White Sc Sp ZOO
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 White Sc Sp ZOO filed Critical White Sc Sp ZOO
Priority to PCT/PL2015/000119 priority Critical patent/WO2017014652A1/fr
Publication of WO2017014652A1 publication Critical patent/WO2017014652A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/005—Sealing rings

Definitions

  • the subject of the invention is a device for measuring the elasticity of piston rings
  • a supporting structure consisting of a base, a support and a boom
  • the supporting structure is equipped with a digital display attached to it, and is connected - on one side with a screw mechanism equipped with a knob, an upper pressing element i.e. jaw and a guiding element - and on the other with a lower part of the measuring mechanism, a pressure piston and a piezoelectric transducer connected to the display.
  • Polish patent description PL210837 discloses a pressure measuring element, in particular of piston rings, used in devices for measuring the profile of a piston ring.
  • the device according to the invention is characterised in that it comprises a shaped mandrel with a coaxially mounted movable sleeve-shaped slide whose bottom cylindrical section has an L-shaped opening which holds a retaining pin mounted in the central part of the mandrel, wherein the shaft includes a coaxially positioned flexible connecting piece located inside the sleeve-shaped slide and supported on one side by the edge of the inner rise of the sleeve- shaped slide and, on the other side, by the tightening nuts releasably connected with the end of the mandrel with a smaller diameter.
  • the lower part of the sleeve-shaped slide includes a coaxially mounted protective sleeve-shaped slide and an adequately shaped pressing foot fixed with a nut, wherein the upper part of the sleeve-shaped slide is connected with a protective cap.
  • Polish utility model PL60391 discloses a device for measuring the elasticity of piston rings equipped with a clamping strip in the shape of a loop whose one end is fixed in a sliding bolt, and whose other end is mounted in a holder connected with a vibration device.
  • the device disclosed in this description is characterised in that it comprises an electronic force gauge slidably mounted on a vertical stand placed on the base of the device, wherein the tip of the measuring mandrel of the force gauge is connected with one end of the clamping strip loop, wherein the other end of the clamping strip loop is fixed in a holder that is a two- armed lever whose other arm is connected to a vibrator.
  • the measuring sensor that has a base body, two spring-loaded spreading arms supported concentric to a rotational axis on the base body and two radially displaceable tracer pins.
  • the measuring sensor has two sensor lever aligned parallel to the rotational axis, whose an end is in contact with an assigned tracer pin and another free end has a tracer head for scanning a radially symmetrical workpiece surface.
  • a gauge for checking linear dimensions of mechanical parts comprises a support casing , substantially arranged along a longitudinal direction, and housing a transducer unit.
  • the transducer unit includes an axially movable rod.
  • a ball-shaped element, movable depending on the dimension of the mechanical part, is fixed at an end of an elongate element, having a second end coupled to the movable rod and a flexible cylindrical section.
  • An abutment member defines an inclined surface portion, having a Vee cross-section, for housing and guiding the ball-shaped element.
  • an apparatus for testing the shape of a concave surface comprises a ball ended member, a mounting for holding a test piece, a device sensitive to linear displacement extending within the member so as to be engageable in use with a point on the concave surface, means for rotating the mounting about an axis thereof and means for rotating this axis about an axis of the said ball.
  • a piston slipper under test is placed in cup of plunger assembly. Spring urges the piston slipper into making contact with ball and into contact with the end of plunger of a probe sensitive to axial displacement of the plunger. The output of probe is displayed on a recorder.
  • Switch is closed, then switch is pressed to operate the motor to rotate shaft and thus via gear train to rotate the slipper to a desired position, when switch is released.
  • Plunger is pushed in against spring and turned so that peg engages a step in recess to retain the plunger. This action causes the plunger to move member transversely to the axis of sleeve, and shaft, engaging wedgeshaped member, moving it axially of shafts and sliding clutch member on splines against the force of spring into contact with a second clutch member.
  • Sleeve and shaft then rotate together and the slipper rotates about the axis of spindle and the axis of sleeve and.
  • the end of a recess in collar 46 engages the peg to disengage it from the step in recess, when the plunger moves outwardly under the influence of spring and switches off via switch the motor and via switch the recorder. If the surface of the slipper corresponds exactly to the wating end of ball the trace on recorder will be a straight line. For other forms of mating surface, the trace will be characteristic of the surface, to be compared against a reference standard.
  • a gauge comprises a housing wedged into the rod, and a shaft vertically movable in a bearing carries a screw mounted probe and is retractable against a stop ring which assists a solenoid in keeping the probe raised.
  • the probe which is biased downwardly by a spring and its own weight automatically centres itself in a hole to be gauged and movements of the carrier and probe are automatically controlled if required from a punch tape console provided with position indicating lights.
  • the probe may be raised by a piston and cylinder instead of by a solenoid, and is held retracted until fluid at a slightly greater pressure is exerted on the top of the piston through duct to move the probe downwardly.
  • the probe is held retracted by a spring until overcome by pressure fluid introduced through duct to act upon the top of piston.
  • the carrier supporting beam is protected by dust shields and similar shields are provided.
  • a cylinder block of a rotary piston engine is rotated about its central or a first axis "X" by a gear train and by a shaft driven by a motor, and is supported by a head which may be moved longitudinally to the right by a motor driving a lead screw and returned quickly to the left by a motor driving a spiral worm and a bevel gear.
  • a tool mounted on a head cuts the block surface into an accurate epitrochoidal surface and is supported to do this by a connecting bar or shaft eccentrically and rotatably mounted in a hollow spindle itself concentrically rotatable about a second axis "Y" by means of a gear driven by the motor.
  • the bar has an axis "B" which is parallel to the other axes and is located on the same line as the contact of the tool with the cylinder.
  • the bar also has a guide member which engages between pairs of rollers on an oscillating plate provided with a ournal having a third fixed axis "I".
  • the cylinder is advanced Dy the lead screw and rotated about the first or "X" axis by the gear.
  • the IOIIOW spindle is rotated at the same time about its own or second axis ⁇ " by the motor rotating gears and simultaneously the bar is given an eccentric revolution by the rotation of the hollow spindle and the action of :he plate engaging the guide at the end of the bar.
  • the first set Df checks is performed by feelers, the second set by feelers, a further Feeler producing a signal compensating for axial displacement of plug.
  • Displacements detected by feelers are transformed into electric signals Bach being associated with an induction position transducer and with detecting circuits to form an electronic gauge.
  • the head under test is nserted into a housing, lever being operated so as to raise thrust element :ogether with a second element associated with a second piston and :hereby position the head against reference elements. Actuation of a second lever is then possible, so as to raise stem into guide hole of head.
  • a coordinate measuring nachine having a vertically movable probe, the weight of which is offset )y an improved pneumatic counterbalance.
  • the pneumatic counterbalance system is adapted to use a source of pressurized air acting upon a ball piston which is directly connected to a probe arm which supports the probe.
  • An accumulator having a capacity large enough to insure only a small change in the counterbalanced force as the ball piston moves within its cylinder is provided.
  • a valve is provided in the connection of the air supply to the accumulator. The valve is adjusted to provide make up air for the air which leaks past the ball piston.
  • the accumulator is formed as a pressurized plenum which surrounds the cylinder.
  • Application US4507868A exposes a coordinate measuring machine having a vertically movable probe supported from the bottom of a probe arm, the weight of which is offset by an improved pneumatic counterbalance.
  • the pneumatic counterbalance is adapted to use a source of pressurized air acting upon a spherical piston which is connected to probe arm.
  • Spherical piston fits with a close tolerance in cylinder.
  • a rigid bracket is connected to the top of probe arm.
  • Piston rod connects spherical piston to a spherical bearing in rigid bracket.
  • a precision pressure regulator having a 'elatively small capacity is provided to insure only a small change in the :ounterbalance force as the spherical piston moves within cylinder. Regulator is adjusted to provide make up air for the air which leaks past spherical piston.
  • y iiameter of the crankpin is monitored by one or more sensors which are connected with a detector serving to transmit signals to the controls of the grinding machine. Retention of the sensors in continuous contact with the circulating crankpin is ensured by an elongated guide which supports the sensors and the detector and is mounted on the piston rod of a cylinder. The latter is pivotable in a holder which is reciprocably or fixedly secured to the table or to the understructure of the frame of the grinding machine. A coil spring in the cylinder biases the piston and the piston rod in a direction to maintain the forward end of the guide in continuous contact with the periphery of the circulating crankpin.
  • a piston ring locating system includes a resilient ring fabricated in a generally circular configuration having a short height and a length of between about 2 inches and 5 inches with overlapping free ends. One of the ends has a slight bend there adjacent for fitting inside the opposite end.
  • the rings are outwardly biased resiliently to allow varying the circumference of the ring as a function of the cylinder in which it is to be placed.
  • the ring thus forms an interior surface and an exterior surface positionable within the cylinder in which it is to be placed.
  • the ring has a top edge and a bottom edge constituting an abutment surface.
  • Projection means extends outwardly From the exterior surface to a short distance and is adapted to be located D the upper edge of the block of the cylinder with which it is to be utilized.
  • the nature of the invention is a device for measuring the elasticity of piston rings
  • a supporting structure consisting of a base, a support and a boom, wherein the supporting structure is equipped with a digital display attached to it, and is connected on one side - with a screw mechanism equipped with a knob, an upper pressing element i.e. jaw and a guiding element - and on the other side with a lower part of the measuring mechanism, a pressure piston and a piezoelectric transducer connected to the display.
  • the boom is movable.
  • the height of the boom is adjustable.
  • the jaw and the pressure piston have concave curvature whose radius is greater than the radius of the measured ring.
  • the contact surface of the jaw and the pressure piston with the ring is made of polyamide or Teflon or bronze or other material with a low coefficient of friction.
  • the top surface of the pressure piston has a ring positioning groove.
  • the transducer is equipped with a wireless communication device.
  • the device according to the invention facilitates the measurement of the elasticity of piston rings.
  • An advantage of the measuring device according to the invention is its functionality, readout speed, repeatability and stability of the measurements, ease of use in mass production and minimal impact of friction on the readouts.
  • the design of the device according to the invention increases the stability of the measurement, which positively affects the reliability of the measurement results. This allows the transducer to include a wireless communication device for instant transfer of readout data to a remote device i.e. a mainframe computer.
  • Fig. 1 shows the front view of the device with a cross-section through the screw mechanism
  • Fig. 2 shows the side view of the device with a cross- section through the screw mechanism.
  • the invention in the embodiment according to Fig. 1 is a measuring instrument that measures radial force and which is shaped like a supporting structure consisting of a base 1 to which the lower part of the measuring mechanism 7, columns 2 are attached by screws 14, and a movable boom 3 to which a screw mechanism used to close the joint 11 is attached.
  • the height of the boom 3 can be adjusted by moving the boom along the column 2, wherein its position can be locked with a screw 16.
  • Fhe upper part of the measuring mechanism consists of a screw Tiechanism comprising an adjustment knob 4, pressing screw 4a equipped /vith a thread, and the upper pressing element in the form of a jaw 5, as well as a guiding member 13 which provides stable guidance of the jaw 5.
  • the lower part of the pressing screw 4a is equipped with a groove 12 that runs along its the periphery of the screw.
  • An elastic locking pin 4b which prevents the jaws 5 from slipping is inserted into the groove 12.
  • the piston ring 6 is positioned between the jaw 5 and the lower part of the measuring mechanism 7.
  • the lower part of the measuring mechanism 7 consists of a pressure piston 8 whose top surface has a concave curvature whose radius is greater than the radius of the ring 6.
  • the top surface of the pressure piston 8 is equipped with a ring 6 positioning groove.
  • the pressure piston 8 is connected with a piezoelectric transducer 9 located below, which converts the changes in the force exerted by the ring 6 on the pressure piston 8 to electric voltage.
  • the transducer 9 is connected byvires 10 with a display 15 mounted on the support structure, whose Durpose is to display the value of force measured by the piezoelectric :ransducer 9.
  • the guiding element 13 that connects the jaw 5 and the Doom 3 provides stable guidance of the jaw 5.
  • the joint 11 of the ring 6 is Driented outside the supporting structure.
  • rhe measurement of the elasticity in the device s carried out by first placing in the measured piston ring 6 in the axis of :he screw mechanism. Then both ends of the ring are forced to meet each Dther. This is done by tightening the screw mechanism via the knob 4. ⁇ utomated tightening mechanisms can be also employed for this purpose, rhen the screw mechanism is unscrewed so as to obtain the nominal required) gap at the ring 6.
  • the size of the joint clearance is measured vith a clearance gauge known in the prior art. After obtaining the required :learance at the ring joint, as measured with the clearance gauge, the force is displayed on the digital display 15 or read by another means of communication with the device.
  • ring designers generally provide the value of the radial force (elasticity) in Newtons, each ring whose measured radial force (elasticity) deviates from the nominal force specified by the manufacturer is deemed faulty, if the deviation exceeds the tolerance.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

L'invention concerne un dispositif de mesure de l'élasticité de segments de piston comprenant une structure de support constituée d'une base, d'un support et d'une flèche, la structure de support étant équipée d'un affichage numérique (15) fixé à celui-ci, et étant reliée d'un côté - à un mécanisme à vis équipé d'un bouton (4), d'un élément de pression supérieur c'est-à-dire une mâchoire (5) et d'un élément de guidage (13) - et de l'autre côté à une partie inférieure du mécanisme de mesure (7), un piston de pression (8) et un transducteur piézo-électrique (9) reliés à l'affichage (15).
PCT/PL2015/000119 2015-07-22 2015-07-22 Dispositif de mesure Ceased WO2017014652A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/PL2015/000119 WO2017014652A1 (fr) 2015-07-22 2015-07-22 Dispositif de mesure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/PL2015/000119 WO2017014652A1 (fr) 2015-07-22 2015-07-22 Dispositif de mesure

Publications (1)

Publication Number Publication Date
WO2017014652A1 true WO2017014652A1 (fr) 2017-01-26

Family

ID=53794464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2015/000119 Ceased WO2017014652A1 (fr) 2015-07-22 2015-07-22 Dispositif de mesure

Country Status (1)

Country Link
WO (1) WO2017014652A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108827612A (zh) * 2018-05-25 2018-11-16 哈尔滨工程大学 一种活塞环电磁加载装置
CN115388825A (zh) * 2022-10-28 2022-11-25 江苏新恒基特种装备股份有限公司 一种螺纹盘管检测治具、系统及方法
CN117428321A (zh) * 2023-12-20 2024-01-23 汉德劳(常州)自动化科技有限公司 一种龙门式摩擦焊接设备
CN118424124A (zh) * 2024-07-02 2024-08-02 玻尔兹曼（广州）科技有限公司 基于红外吸收法的高精度测厚仪及测厚方法

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1932920A1 (de) * 1969-06-28 1971-01-07 Goetzewerke Vorrichtung zum Feststellen von Fehlern in Dichtkanten von Dichtlippen aus gummielastischem Werkstoff
GB1331931A (en) 1969-07-22 1973-09-26 Lucas Industries Ltd Method of and apparatus for checking the form of a concave surface
GB1359688A (en) 1970-10-19 1974-07-10 Bendix Corp Measuring apparatus
GB1425105A (en) 1972-10-11 1976-02-18 Illinois Tool Works Apparatus for sweeping out epitrochoidal curves
GB1463533A (en) 1973-04-19 1977-02-02 Possati M Method of and apparatus for checking the geometrical features of mechanical workpieces in particular for measuring concentricity and roundness
PL210837A1 (pl) 1978-11-08 1979-10-22 Bytomskie Zaklady Naprawcze Pr Urzadzenie do wykonywania drutow zabezpieczajacych
US4389781A (en) 1981-08-10 1983-06-28 The Bendix Corporation Pneumatic counterbalance for a coordinate measuring machine
US4452074A (en) * 1981-09-04 1984-06-05 Shelomentsev Timofei I Method of and apparatus for monitoring the performance of internal combustion engine mechanisms
US4507868A (en) 1982-08-30 1985-04-02 The Warner & Swasey Company Coordinate measuring machine with a self aligning pneumatic counterbalance
US4637144A (en) 1984-07-03 1987-01-20 Schaudt Maschinenbau Gmbh Apparatus for monitoring the diameters of crankpins during treatment in grinding machines
US4864733A (en) * 1988-02-12 1989-09-12 Gillberg Carl E Method and apparatus for testing oil seals and the like
WO1995001547A1 (fr) 1993-07-01 1995-01-12 Marposs Societa' Per Azioni Calibres de verification de dimensions lineaires
US6401058B1 (en) * 1999-02-12 2002-06-04 Wayne State University Reciprocating system for simulating friction and wear
US6421930B1 (en) 2000-04-06 2002-07-23 John R. Foster Piston ring locating system
PL60391Y1 (en) 1999-05-27 2004-04-30 Marian Kierek Piston ring resilience measuring instrument
DE102004043874A1 (de) * 2004-09-10 2006-03-16 Robert Bosch Gmbh Vorrichtung zur Erfassung des Drucks in einem Brennraum einer Verbrennungskraftmaschine
EP2249121A1 (fr) 2009-05-04 2010-11-10 Hacmann, Hartmut Palpeur

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1932920A1 (de) * 1969-06-28 1971-01-07 Goetzewerke Vorrichtung zum Feststellen von Fehlern in Dichtkanten von Dichtlippen aus gummielastischem Werkstoff
GB1331931A (en) 1969-07-22 1973-09-26 Lucas Industries Ltd Method of and apparatus for checking the form of a concave surface
GB1359688A (en) 1970-10-19 1974-07-10 Bendix Corp Measuring apparatus
GB1425105A (en) 1972-10-11 1976-02-18 Illinois Tool Works Apparatus for sweeping out epitrochoidal curves
GB1463533A (en) 1973-04-19 1977-02-02 Possati M Method of and apparatus for checking the geometrical features of mechanical workpieces in particular for measuring concentricity and roundness
PL210837A1 (pl) 1978-11-08 1979-10-22 Bytomskie Zaklady Naprawcze Pr Urzadzenie do wykonywania drutow zabezpieczajacych
US4389781A (en) 1981-08-10 1983-06-28 The Bendix Corporation Pneumatic counterbalance for a coordinate measuring machine
US4452074A (en) * 1981-09-04 1984-06-05 Shelomentsev Timofei I Method of and apparatus for monitoring the performance of internal combustion engine mechanisms
US4507868A (en) 1982-08-30 1985-04-02 The Warner & Swasey Company Coordinate measuring machine with a self aligning pneumatic counterbalance
US4637144A (en) 1984-07-03 1987-01-20 Schaudt Maschinenbau Gmbh Apparatus for monitoring the diameters of crankpins during treatment in grinding machines
US4864733A (en) * 1988-02-12 1989-09-12 Gillberg Carl E Method and apparatus for testing oil seals and the like
WO1995001547A1 (fr) 1993-07-01 1995-01-12 Marposs Societa' Per Azioni Calibres de verification de dimensions lineaires
US6401058B1 (en) * 1999-02-12 2002-06-04 Wayne State University Reciprocating system for simulating friction and wear
PL60391Y1 (en) 1999-05-27 2004-04-30 Marian Kierek Piston ring resilience measuring instrument
US6421930B1 (en) 2000-04-06 2002-07-23 John R. Foster Piston ring locating system
DE102004043874A1 (de) * 2004-09-10 2006-03-16 Robert Bosch Gmbh Vorrichtung zur Erfassung des Drucks in einem Brennraum einer Verbrennungskraftmaschine
EP2249121A1 (fr) 2009-05-04 2010-11-10 Hacmann, Hartmut Palpeur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108827612A (zh) * 2018-05-25 2018-11-16 哈尔滨工程大学 一种活塞环电磁加载装置
CN115388825A (zh) * 2022-10-28 2022-11-25 江苏新恒基特种装备股份有限公司 一种螺纹盘管检测治具、系统及方法
CN117428321A (zh) * 2023-12-20 2024-01-23 汉德劳(常州)自动化科技有限公司 一种龙门式摩擦焊接设备
CN117428321B (zh) * 2023-12-20 2024-02-27 汉德劳(常州)自动化科技有限公司 一种龙门式摩擦焊接设备
CN118424124A (zh) * 2024-07-02 2024-08-02 玻尔兹曼（广州）科技有限公司 基于红外吸收法的高精度测厚仪及测厚方法

Similar Documents

Publication Publication Date Title
US7197837B1 (en) Gauge assembly for measuring diameter and total indicated runout
WO2017014652A1 (fr) Dispositif de mesure
JP3943032B2 (ja) 研削機での機械加工中に機械部片の偏心部分の直径を検査する装置
US3911586A (en) Precision control apparatus
US3823484A (en) Multi-probe hole-location and concentricity-measuring spindle for dial indicator gauge
CN205279964U (zh) 一种用于检测孔内槽深的检具
KR20150069561A (ko) 가스 터빈 완충 콘 내경을 결정하기 위한 방법 및 장치
CN201748874U (zh) 多用内径千分尺
CN102109307A (zh) 多用数显内径千分尺
CN202074898U (zh) 多用数显内径千分尺
CN212843316U (zh) 长台阶高度量具
CN213984985U (zh) 一种用于测量同类型的蜗杆及齿轮跳动的检具
US4630377A (en) Valve seat runout gage
CN110657751B (zh) 一种自定位高精度孔径测量装置
CN220853492U (zh) 管件深孔检测装置
US4447962A (en) Adjustable bore target and gage
CN209069144U (zh) 一种内燃机缸体主轴承孔圆跳动检测检具
CN114964124B (zh) 一种小型燕尾型榫槽内孔对称度检测装置及方法
CN211527254U (zh) 一种测量装置
CN112665490B (zh) 一种偏心内曲线轮廓检具
CN111426259B (zh) 一种中大孔径类零件用检测装置及方法
RU2729245C1 (ru) Устройство для измерения линейных перемещений подвижного органа станка
CN110081797B (zh) 用于孔、轴带稍的检测装置及检测方法
US3468034A (en) Roundness gauge
CN217716239U (zh) 一种燃气轮机轮盘环槽内外直径、焊接止口直径专用测具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15748075

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15748075

Country of ref document: EP

Kind code of ref document: A1