CN2713431Y - Piston skirt detector - Google Patents

Piston skirt detector Download PDF

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Publication number
CN2713431Y
CN2713431Y CN 200420060545 CN200420060545U CN2713431Y CN 2713431 Y CN2713431 Y CN 2713431Y CN 200420060545 CN200420060545 CN 200420060545 CN 200420060545 U CN200420060545 U CN 200420060545U CN 2713431 Y CN2713431 Y CN 2713431Y
Authority
CN
China
Prior art keywords
piston
piston skirt
rotatable platform
show case
detector
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.)
Expired - Fee Related
Application number
CN 200420060545
Other languages
Chinese (zh)
Inventor
蔡仲梅
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.)
Chongqing Zongshen Engine Manufacturing Co Ltd
Original Assignee
Chongqing Zongshen Technology Development and Research Co Ltd
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 Chongqing Zongshen Technology Development and Research Co Ltd filed Critical Chongqing Zongshen Technology Development and Research Co Ltd
Priority to CN 200420060545 priority Critical patent/CN2713431Y/en
Application granted granted Critical
Publication of CN2713431Y publication Critical patent/CN2713431Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a piston skirt detector, comprising a base, a turntable platform, an electrical motor, a sensor and an arithmetic and control unit show case. The turntable platform is arranged on the base. The electrical motor is fixed to the bottom face of the base. The output shaft of the electrical motor is connected with the rotation shaft of the turntable platform through a gear change mechanism. A supporting device, a location block for positioning the piston and a stopper for preventing the piston from moving are arranged on the turntable platform. A spotting spindle through which a piston pin hole can pass is arranged in parallel with the supporting device. Two sets of sensors are fixed to the base supporter and are connected with the arithmetic and control unit show case. The measuring heads of two sensors are fixed in the long shaft direction of the piston skirt. The distance between the measuring heads is slightly smaller than the diameter of the standard long shaft. The scientificalness and the accuracy of the detection are greatly improved through the adoption of the utility model. The detection efficiency is greatly improved. Meanwhile, the grouping of the test result can optimize the matching degree of the piston and the cylinder. The engine performance is further improved.

Description

The piston skirt detector
Technical field the utility model relates to a kind of engine component checkout equipment, relates to the equipment that the piston skirt size to engine detects particularly.
The background technology piston is the heart of engine, and its rectilinear motion up and down reciprocatingly in cylinder is subjected to the thrust of high-pressure gas and promotes crankshaft rotating by connecting rod and do work.And the piston skirt is as the lower part of last one piston ring groove, its effect guiding that to be piston move up and down at cylinder and bear wall pressure.The xsect of piston skirt is oval, its major axis dimension is extremely important, its macropinacoid need keep less clearance to form oil film to form lubricating condition preferably to reduce this corresponding face of major axis that bounces and make that moves to casing wall that commutates with cylinder wall, reduces wear.If major axis is long, the gap of skirt section and cylinder wall is too little, and the resistance of motion is excessive, and expanded by heating can produce adhesive wear.The major axis dimension of piston skirt is as very important data, and often accuracy is not enough in detection in the past.Detection method originally is: the piston skirt size that is assembled into the drawing requirement with standard gauge block, be placed on the auxiliary mould then, check with clock gauge, and remember the groove position of checking, take piston fixing big directly a bit on clock gauge with hand then, look for another the longest with it point, be the major diameter of piston skirt.Detect in this way, at first accuracy is not enough, observes the reading of clock gauge again by detecting the manual rotating piston of worker, and error is bigger; Detection efficiency is low in addition, detect one needs 2-3 minute, be difficult to adapt to the needs of extensive assembling.
The deficiency that summary of the invention exists at above-mentioned prior art, the purpose of this utility model is to provide a kind of testing result accurate, and piston skirt detector that can fast detecting piston skirt major axis.
The technical solution of the utility model is achieved in that a kind of piston skirt detector, it comprises pedestal, rotatable platform, motor, sensor and s operation control show case, rotatable platform is located on the pedestal, motor is fixedly mounted on base bottom surface, and its output shaft is connected with the rotating shaft of rotatable platform by gear; Rotatable platform is provided with bracing or strutting arrangement, to the locating piece of piston location with prevent the limited block of piston play, level is provided with the locator mandrel that passes for piston pin hole on the bracing or strutting arrangement; Two sensors is fixed on the support of pedestal and with the s operation control show case and is connected, and the gauge head of two sensors is fixed on the long axis direction of piston skirt to be measured, and the distance between gauge head is slightly less than the major axis of standard.
Described s operation control show case also comprises and is used for the piston skirt major axis branch of different range is gone into the packet control unit of different groups and the group display device that is attached thereto.
Described rotatable platform has a groove, limited block place in the groove and with the joystick elastic coupling.
Compare traditional detection method, piston skirt of the present utility model detector has following advantage:
1. employing equipment rotates the major diameter of seeking the piston skirt automatically, makes the more science of determining of major axis, also makes testing result more accurate.
2. detection efficiency greatly improves, and finishing a test in the past needs 2-3 minute, only needs 5 seconds now.
3. pass through grouping and setting in advance, can go into the different groups of corresponding cylinder with it to piston to be checked according to its size branch, reach the Optimum Matching of piston and cylinder, improved properties of product, reduced manufacturing cost simultaneously.
The utility model is described in further detail below in conjunction with accompanying drawing for description of drawings:
Fig. 1 is the structural representation of the utility model detector.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the control panel synoptic diagram of s operation control show case.
Embodiment is referring to Fig. 1, Fig. 2 and Fig. 3, and piston skirt of the present utility model detector comprises the support 12 of pedestal 1, locator mandrel 2, bracing or strutting arrangement 3, sensor 4, rotatable platform 5, gear 6, motor 7, joystick 8, limited block 9, s operation control show case 10, locating piece 11 and sensor installation.Motor 7 is installed in the bottom of pedestal 1, and the output shaft of motor 7 connects by the rotating shaft of gear 6 with rotatable platform 5.Rotatable platform 5 is provided with bracing or strutting arrangement 3, to the locating piece 11 of piston location, prevent the limited block 9 of piston play, along continuous straight runs is provided with the locator mandrel 2 that passes for piston pin hole on the bracing or strutting arrangement 3.Limited block 9 is connected with joystick 8 elasticity, so that 9 pairs of piston elasticity to be measured of limited block are spacing.One groove is arranged on the rotatable platform 5, when limited block 9 is not worked, rotate joystick 8 limited block 9 is placed upside down in the groove, be convenient to piston bush to be measured and be contained on the locator mandrel 2, after piston is laid and put in place, make its setting by joystick 8 again and contact to reach position-limiting action with piston outer wall.The support 12 and the sensor 4 of sensor installation respectively have two covers, are installed in the both sides of rotatable platform 5 respectively relatively, and to being positioned on the long axis direction of piston skirt to be measured, the distance between gauge head is slightly less than the major diameter of standard to the gauge head of two sensors 4 greatly.Two sensors 4 is installed in respectively on separately the mounting frame for sensor 12 relatively, and be connected with s operation control show case 10, handle by the signal that 10 pairs of sensors 4 of s operation control show case are passed back, intuitively measured result is shown by the form of display box at last with numeral.In s operation control show case 10, be provided with packet control unit, in advance different piston skirt major diameter is made as different groups, when the size of measuring falls into a certain scope, be about to piston and belong to corresponding group, the piston of different groups and corresponding cylinder coupling are so that the gap of piston and cylinder wall reaches perfect condition as far as possible." maximum gauge " and " grouping " two display boxes and various operating key are arranged on the panel of s operation control show case 10, and two display boxes show the major diameter of tested piston and a certain group that is included into respectively.Sensor 4, s operation control show case 10 select for use Zhongyuan Measuring Instrument Plant or Wuxi to like that the Related product of tin amount instrument company gets final product.
The testing process and the principle of the utility model piston skirt detector are as follows:
At first the limited block on the rotatable platform 59 was fallen and placed in the groove on the rotatable platform, again piston to be measured is sleeved on the locator mandrel 2 by piston pin hole, piston supports locating piece 11 back pistons and promptly lays and put in place, again rotary spacing piece joystick 8 make limited block 9 upright and with the piston elastic compression, to prevent that piston from producing play in rotatable platform 5 rotations, piston to be measured was all laid and was put in place this moment.After piston puts in place, start the initiating key on the s operation control show case 10, this button makes the motor rotation and drives rotatable platforms 5 rotations by gear 6 as the gauge tap of motor 7.Rotatable platform 5 turns clockwise earlier by predefined program and is rotated counterclockwise equal angular again behind the certain angle, piston is correspondingly and then rotation thus, at last capture the full-size of piston skirt by s operation control case 10 by the two sensors gauge head that contacts with the piston skirt different parts, this is the major diameter of piston skirt.Simultaneously, because the packet control unit of s operation control show case 10 is done different groups to the major diameter of piston skirt by different numerical range branches in advance, when measured result falls into a certain group, the group display box can show the group under this piston, so that operating personnel divide into groups to piston, make it to distribute rationally, reach the idealized as far as possible of piston and cylinder gap with different cylinders.Detection finishes, and rotary spacing piece joystick 8 is put in groove limited block 9 upside down, takes out piston again.

Claims (3)

1. piston skirt detector, it is characterized in that: it comprises pedestal (1), rotatable platform (5), motor (7), sensor (4) and s operation control show case (10), rotatable platform (5) is located on the pedestal (1), motor (7) is fixedly mounted on pedestal (1) bottom surface, and its output shaft is connected with the rotating shaft of rotatable platform (5) by gear (6); Rotatable platform (5) is provided with bracing or strutting arrangement (3), to the locating piece (11) of piston location with prevent the limited block (9) of piston play, bracing or strutting arrangement (3) is gone up level and is provided with the locator mandrel (2) that the confession piston pin hole passes; The support (12) that two sensors (4) is fixed in pedestal (1) upward and with s operation control show case (10) is connected, and the gauge head of two sensors (4) is individually fixed on the long axis direction of piston skirt to be measured.
2. piston skirt according to claim 1 detector is characterized in that: described s operation control show case (10) comprises and is used for the piston skirt major diameter branch of different range is gone into the packet control unit of different groups and the group display device that is attached thereto.
3. piston skirt according to claim 1 detector is characterized in that: described rotatable platform (5) has a groove, limited block (9) place in the groove and with joystick (8) elastic coupling.
CN 200420060545 2004-07-29 2004-07-29 Piston skirt detector Expired - Fee Related CN2713431Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420060545 CN2713431Y (en) 2004-07-29 2004-07-29 Piston skirt detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420060545 CN2713431Y (en) 2004-07-29 2004-07-29 Piston skirt detector

Publications (1)

Publication Number Publication Date
CN2713431Y true CN2713431Y (en) 2005-07-27

Family

ID=34873038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420060545 Expired - Fee Related CN2713431Y (en) 2004-07-29 2004-07-29 Piston skirt detector

Country Status (1)

Country Link
CN (1) CN2713431Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101625711B (en) * 2009-08-05 2011-02-16 奇瑞汽车股份有限公司 Method for optimizing piston skirt molded line
CN102162728A (en) * 2010-12-17 2011-08-24 南京工程学院 Method for evaluating minimum area of line profile error of cross section of skirt part of variable-ellipse piston
CN102607372A (en) * 2012-03-16 2012-07-25 江苏欧翔机车有限公司 Piston skirt detecting device
CN103075953A (en) * 2013-01-09 2013-05-01 浙江吉利汽车研究院有限公司杭州分公司 Device for detecting radial jump of piston ring slot
CN105157527A (en) * 2015-09-07 2015-12-16 苏州莱测检测科技有限公司 Automatic excircle journal tolerance detection mechanism of axis parts
CN107806849A (en) * 2017-09-11 2018-03-16 大连德迈仕精密科技股份有限公司 A kind of diameter testing agency of axial workpiece
CN109238209A (en) * 2018-10-17 2019-01-18 添佶轴承科技(浙江)有限公司 The measurement method of retainer outer circle
CN110823536A (en) * 2019-10-14 2020-02-21 中国北方发动机研究所(天津) Piston skirt lateral pressure fatigue test device under high temperature environment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101625711B (en) * 2009-08-05 2011-02-16 奇瑞汽车股份有限公司 Method for optimizing piston skirt molded line
CN102162728A (en) * 2010-12-17 2011-08-24 南京工程学院 Method for evaluating minimum area of line profile error of cross section of skirt part of variable-ellipse piston
CN102162728B (en) * 2010-12-17 2012-10-31 南京工程学院 Method for measuring minimum area of line profile error of cross section of skirt part of variable-ellipse piston
CN102607372A (en) * 2012-03-16 2012-07-25 江苏欧翔机车有限公司 Piston skirt detecting device
CN103075953A (en) * 2013-01-09 2013-05-01 浙江吉利汽车研究院有限公司杭州分公司 Device for detecting radial jump of piston ring slot
CN103075953B (en) * 2013-01-09 2016-05-25 浙江吉利汽车研究院有限公司杭州分公司 A kind of piston ring groove circular runout checkout gear
CN105157527A (en) * 2015-09-07 2015-12-16 苏州莱测检测科技有限公司 Automatic excircle journal tolerance detection mechanism of axis parts
CN107806849A (en) * 2017-09-11 2018-03-16 大连德迈仕精密科技股份有限公司 A kind of diameter testing agency of axial workpiece
CN109238209A (en) * 2018-10-17 2019-01-18 添佶轴承科技(浙江)有限公司 The measurement method of retainer outer circle
CN110823536A (en) * 2019-10-14 2020-02-21 中国北方发动机研究所(天津) Piston skirt lateral pressure fatigue test device under high temperature environment

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: CHONGQING ZONGSHEN ENGINE MANUFACTURING CO.

Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO., LTD.

Effective date: 20071221

TR01 Transfer of patent right

Effective date of registration: 20071221

Address after: Shen Shen industrial park, Banan District, Chongqing, China: 400054

Patentee after: Chongqing Zongshen Engine Manufacturing Co., Ltd.

Address before: No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu, 400039

Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050727

Termination date: 20120729

C17 Cessation of patent right