CN105783666A - Steam pump core package support slider contact checking tool and contact checking method - Google Patents

Steam pump core package support slider contact checking tool and contact checking method Download PDF

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Publication number
CN105783666A
CN105783666A CN201610313319.9A CN201610313319A CN105783666A CN 105783666 A CN105783666 A CN 105783666A CN 201610313319 A CN201610313319 A CN 201610313319A CN 105783666 A CN105783666 A CN 105783666A
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CN
China
Prior art keywords
pump core
heat pump
bag support
core bag
support slipper
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Granted
Application number
CN201610313319.9A
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Chinese (zh)
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CN105783666B (en
Inventor
陈正飞
孟林辉
刘立勇
邢继涛
康伟
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.)
China Shenhua Energy Co Ltd
Beijing Guohua Electric Power Co Ltd
Suizhong Power Generation Co Ltd
Original Assignee
China Shenhua Energy Co Ltd
Beijing Guohua Electric Power Co Ltd
Suizhong Power Generation Co Ltd
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Application filed by China Shenhua Energy Co Ltd, Beijing Guohua Electric Power Co Ltd, Suizhong Power Generation Co Ltd filed Critical China Shenhua Energy Co Ltd
Priority to CN201610313319.9A priority Critical patent/CN105783666B/en
Publication of CN105783666A publication Critical patent/CN105783666A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Braking Arrangements (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention discloses a steam pump core package support slider contact checking tool and contact checking method. The contact checking tool includes an installation frame and a plurality of steam pump core package support sliders (1) installed on the installation frame; and the relative positions of the steam pump core package support sliders (1) can be adjusted. According to the steam pump core package support slider contact checking tool, the steam pump core package support sliders can be installed on the special contact checking tool, and therefore, points for micrometer measurement can be transformed into a surface, and therefore, the accuracy of measurement work can be improved; a maintainer can enter a steam pump shell to directly observe the contact condition of the steam pump core package support sliders, and therefore, influence on judgment accuracy caused by pseudo-points which appear in a steam pump core package coloring trial assembly process can be eliminated. With the steam pump core package support slider contact checking tool and contact checking method provided by the technical schemes of the invention adopted, original bulky and complicated checking modes can be replaced, detection of matching clearance and contact condition of the steam pump core package support sliders is simpler, more accurate and more convenient.

Description

Heat pump core bag support slipper contact checking tool and contact inspection method
Technical field
The present invention relates to equipment mounting technique field, in particular it relates to a kind of heat pump core bag support slipper contact checking tool and contact inspection method.
Background technology
Generating set refers to be transformed into mechanical energy or other regenerative resource the generating equipment of electric energy.In generating set, the heat pump core bag support slipper that the driving side of the heat pump core bag of feed pump is distributed by six annular arrays is supported in air pump shell, and wherein, the fit clearance between heat pump core bag support slipper and the inwall of air pump shell is designed as 0.04mm.For ensureing the holding state of heat pump core bag, requiring that fit clearance is 0.04mm on the one hand, this needs to use the micrometer measurement of inside and outside footpath;On the other hand, it is desirable to six heat pump core bag support slippers should be uniform with contacting of the inwall of air pump shell, and this needs trial assembly heat pump core bag and carries out dyeing inspection.
Owing to the structure of heat pump core bag is complicated and installation accuracy is high, the contact situation inspection of heat pump core bag support slipper is again very important link in maintenance, therefore, needs not only fast but also accurate when checking the contact condition of heat pump core bag support slipper, fit clearance.Heat pump core bag support slipper fit clearance checks that former employing inside and outside footpath micrometer is measured the size of matching part respectively and calculated and obtain, by the impact measuring the many factors such as position, survey crew, it is easy to measurement error occur.Specifically, owing to the fit clearance of heat pump core bag support slipper is little, in all previous maintenance, heat pump core bag support slipper surface has occurred more groove mark, uses miking to be not easily found work surface, occurs that measurement error probability is higher.It addition, original heat pump core bag support slipper contact situation inspection method, need trial assembly heat pump core bag, contacting situation again through dyeing inspection, method is heavy, complex process, and error easily occurs, in trial assembly process, heat pump core bag support slipper touches other non-working surfaces, it is easy to false point occur.
Because the disadvantages mentioned above of prior art, it is desirable to provide a kind of novel heat pump core bag support slipper contact checking tool.
Summary of the invention
It is an object of the invention to provide heat pump core bag support slipper that is a kind of easy and simple to handle and that can accurately check contact checking tool.
To achieve these goals, the present invention provides a kind of heat pump core bag support slipper contact checking tool, and it includes installing rack and the multiple heat pump core bag support slippers being installed on described installing rack, and the relative position between described heat pump core bag support slipper can adjust.
Preferably, described installing rack is telescopic connecting rod, and described heat pump core bag support slipper is respectively arranged in the two ends of described connecting rod.
Preferably, described connecting rod includes the first bar and second bar of connector and coaxial setting, one end of described first bar is connected by described connector with one end of described second bar, and described first bar and described second bar all can move relative to described connector, described heat pump core bag support slipper is respectively arranged in the free end of described first bar and the free end of described second bar.
Preferably, described connector is connecting cylinder, and in the first end of the described connecting cylinder of one end insertion of described first bar and one end of described second bar is inserted in the second end of described connecting cylinder.
Preferably, described first bar and described second bar are connected with described connecting cylinder each through screw thread.
Preferably, described connecting rod also includes the stop nut being respectively arranged on described first bar and described second bar, and described stop nut can bear against the end face of described connecting cylinder.
Preferably, described heat pump core bag support slipper is connected with described connecting rod each through screw thread.
It addition, the present invention also provides for a kind of heat pump core bag support slipper contact inspection method, it comprises the steps:
S1, heat pump core bag support slipper is installed on heat pump core wraps and measure the standard relative position between described heat pump core bag support slipper;
S2, wrap to take off from described heat pump core by described heat pump core bag support slipper and be installed on installing rack again, and the relative position between the described heat pump core bag support slipper on described installing rack is adjusted to identical with described standard relative position;
S3, the described heat pump core bag support slipper being arranged on described installing rack is put into air pump shell, check the mated condition of described heat pump core bag support slipper and described air pump shell.
Preferably, in described step S2, described installing rack is telescopic connecting rod, described heat pump core bag support slipper is respectively arranged in the two ends of described connecting rod, by adjusting the length of described connecting rod, make the relative position between the described heat pump core bag support slipper on described connecting rod identical with standard relative position.
Preferably, in described step S3, by painted on described heat pump core bag support slipper and/or use clearance gauge, check the mated condition of described heat pump core bag support slipper and described air pump shell.
Preferably, in described step S3, if described heat pump core bag support slipper and described air pump shell loose contact, it is necessary to described heat pump core bag support slipper is repaiied and grinds process, until making described heat pump core bag support slipper meet setting requirement with coordinating of described air pump shell.
In technique scheme, adopt heat pump core bag support slipper contact checking tool, heat pump core bag support slipper is installed on special contact checking tool, makes the point of miking become face, thus promoting the accuracy measuring work.It addition, maintainer can enter in air pump shell, directly observe the contact situation checking heat pump core bag support slipper, it is to avoid enclose at heat pump core and color trial assembly process occurring, vacation point affects the accuracy of judgement.Technical scheme overcomes originally heavy and complicated checking mode, makes the fit clearance of heat pump core bag support slipper, contact situation inspection work simpler, accurate and convenient.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, is used for explaining the present invention, but is not intended that limitation of the present invention together with detailed description below.In the accompanying drawings:
Fig. 1 is the structure chart of the heat pump core bag support slipper contact checking tool of the present invention;
Fig. 2 is the flow chart of the heat pump core bag support slipper contact inspection method of the present invention.
Wherein,
1 heat pump core bag support slipper 2 connecting rod
21 first bar 22 second bars
23 connector 24 stop nuts
10 air pump shells
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains the present invention, it is not limited to the present invention.
The present invention provides a kind of heat pump core bag support slipper contact checking tool, and it includes installing rack and the multiple heat pump core bag support slippers 1 being installed on installing rack, and the relative position between heat pump core bag support slipper 1 can adjust.Adopt above-mentioned heat pump core bag support slipper contact checking tool, heat pump core bag support slipper 1 is installed on special contact checking tool, makes the point of miking become face, thus promoting the accuracy measuring work.Additionally, maintainer can enter in air pump shell 10, directly observe and contact situation between the work surface (arc-shaped curved surface) and the inwall of heat pump housing 10 that check heat pump core bag support slipper 1, it is to avoid enclose at heat pump core and color trial assembly process occurring, vacation point affects the accuracy of judgement.Technical scheme overcomes originally heavy and complicated checking mode, makes the fit clearance of heat pump core bag support slipper, contact situation inspection work simpler, accurate and convenient.
Wherein, the installing rack in contact checking tool can be various ways, for instance, ring support or connecting rod etc..When adopting ring support to install heat pump core bag support slipper 1, need to ensure that the relative position between six heat pump core bag support slippers 1 is consistent with the standard relative position that heat pump core bag support slipper 1 is arranged on when heat pump core is wrapped, consider the situation that there is the heat pump core bag of different-diameter, cushion block can be increased on a toroidal support the relative position between six heat pump core bag support slippers 1 is adjusted, so that the relative position between six heat pump core bag support slippers 1 is consistent with standard relative position, or, the heat pump core bag of the corresponding a kind of diameter of a kind of ring support can also be made.And when adopting connecting rod to install heat pump core bag support slipper 1, six heat pump core bag support slippers 1 need to be divided into three groups to check, wherein, two the heat pump core bag support slippers 1 being oppositely arranged are one group, and the center of circle of the installation site that namely two heat pump core bag support slippers 1 of same group are wrapped at heat pump core and heat pump core bag is on same straight line.The two ends of connecting rod are respectively mounted two heat pump core bag support slippers 1 of same group, and by the length of adjustment connecting rod so that the relative position between the two heat pump core bag support slipper 1 is consistent with standard relative position.Certain installing rack can also be other forms, as long as the relative position being able to ensure that between heat pump core bag support slipper 1 is consistent with standard relative position, and as one preferred embodiment, as shown in Figure 1, installing rack is telescopic connecting rod 2, and heat pump core bag support slipper 1 is respectively arranged in the two ends of connecting rod 2.
Further, the mode that connecting rod 2 has retractable is made also to have a variety of, such as, connecting rod 2 includes can two bars of intussusception mutually, and these two bars determine connecting rod collapsing length by alignment pin, or, connecting two bars by attachment structure, these two bars can move to regulate the length of connecting rod 2 relative to attachment structure and along self axis direction.As shown in Figure 1, as one preferred embodiment, connecting rod 2 includes the first bar 21 and the second bar 22 of connector 23 and coaxial setting, one end of first bar 21 is connected by connector 23 with one end of the second bar 22, and first bar 21 and the second bar 22 all can move relative to connector 23, wherein, heat pump core bag support slipper 1 is respectively arranged in the free end of the first bar 21 and the free end of the second bar 22, it is thus possible to make the relative position between heat pump core bag support slipper 1 consistent with standard relative position by adjusting the length (i.e. the free end of the first bar 21 to the distance of the free end of the second bar 22) of connecting rod 2.
Wherein, connector 23 can be connecting cylinder, as it is shown in figure 1, one end of the first bar 21 is inserted in the first end of connecting cylinder and one end of the second bar 22 is inserted in the second end of connecting cylinder such that it is able to adjusted the length of connecting rod 2 by the length adjusting the first bar 21 and/or the second bar 22 inserts in connecting cylinder.Or, connector 23 can be also latch, and the end of the first bar 21 and the second bar 22 is inserted at the two ends of latch respectively, and the length that can insert the first bar 21 and/or the second bar 22 equally by adjusting latch adjusts the length of connecting rod 2.
When connector 23 can be connecting cylinder, as one preferred embodiment, the first bar 21 and the second bar 22 are connected with connecting cylinder each through screw thread, just can adjust the length of connecting rod 2 thereby through the cylinder that is rotatably connected.Additionally, consider that connecting cylinder and the first bar 21 and the second bar 22 have to loosen to be likely to, this loosening meeting directly affects the accuracy that the contact of heat pump core bag support slipper 1 checks, thus connecting rod 2 also includes the stop nut 24 that is respectively arranged on the first bar 21 and the second bar 22, stop nut 24 can bear against the end face of connecting cylinder, to prevent connecting cylinder and the first bar 21 and the second bar 22 from producing relative displacement in checking process, it is ensured that the accuracy of inspection.
Further, as one preferred embodiment, as it is shown in figure 1, heat pump core bag support slipper 1 is connected with connecting rod 2 each through screw thread, easy accessibility and reliable and stable.Certainly, heat pump core bag support slipper 1 can also pass through other forms and be connected with connecting rod 2, for instance, bearing pin or buckle, etc..
It addition, the present invention also provides for a kind of heat pump core bag support slipper contact inspection method, as in figure 2 it is shown, it comprises the steps:
S1, heat pump core bag support slipper 1 is installed on heat pump core wraps and measure the standard relative position between heat pump core bag support slipper 1;
S2, wrap to take off from heat pump core by heat pump core bag support slipper 1 and be installed on installing rack again, and the relative position between the heat pump core bag support slipper 1 on installing rack is adjusted to identical with standard relative position;
S3, the heat pump core bag support slipper 1 being arranged on installing rack is put into air pump shell 10, check the mated condition of heat pump core bag support slipper 1 and air pump shell 10.
In step sl, standard relative position can be measured by micrometer etc..Adopt above-mentioned heat pump core bag support slipper contact inspection method, heat pump core bag support slipper 1 is installed on special installing rack, makes the point of miking become face, thus promoting the accuracy measuring work.It addition, maintainer can enter in air pump shell 10, directly observe the contact situation checking heat pump core bag support slipper 1, it is to avoid enclose at heat pump core and color trial assembly process occurring, vacation point affects the accuracy of judgement.Technical scheme overcomes originally heavy and complicated checking mode, makes the fit clearance of heat pump core bag support slipper, contact situation inspection work simpler, accurate and convenient.
Wherein, as one preferred embodiment, in step s 2, installing rack is telescopic connecting rod 2, heat pump core bag support slipper 1 is respectively arranged in the two ends of connecting rod 2, by adjusting the length of connecting rod 2, make the relative position between the heat pump core bag support slipper 1 on connecting rod 2 identical with standard relative position.In heat pump core bag support slipper 1 is carried out contact checking process, six heat pump core bag support slippers 1 are divided into three groups check, wherein, two the heat pump core bag support slippers 1 being oppositely arranged are one group, and the center of circle of the installation site that namely two heat pump core bag support slippers 1 of same group are wrapped at heat pump core and heat pump core bag is on same straight line.The two ends of connecting rod are respectively mounted two heat pump core bag support slippers 1 of same group, and by adjusting the length of connecting rod so that the relative position between relative position and the two heat pump core bag support slipper 1 wrapped at heat pump core between the two heat pump core bag support slipper 1 is consistent.
Further, in step s3, as shown in Figure 1, the heat pump core bag support slipper 1 being arranged on installing rack is put into air pump shell 10, make the work surface (arc-shaped curved surface) inwall near air pump shell 10 of heat pump core bag support slipper 1, and heat pump core bag support slipper 1 can be mobile along the circumference of air pump shell 10.By painted on heat pump core bag support slipper 1 and/or use clearance gauge, check the mated condition of heat pump core bag support slipper 1 and air pump shell 10.Wherein, clearance gauge is had, by one group, the gauge that the differential stalloy of different-thickness forms, and clearance gauge is used for measuring gap size.When checking measured size whether qualified, it is possible to the tightness coordinated with measured surface according to clearance gauge from trier judges.Rustless steel manufacture generally used by clearance gauge, and the thinnest is 0.02 millimeter, and the thickest is 3 millimeters.Between 0.02~0.1 millimeter, each steel plate thickness is differential is 0.01 millimeter;Between 0.1~1 millimeter, the thickness of each steel disc is differential is generally 0.05 millimeter;More than 1 millimeter, the thickness of steel disc is differential is 1 millimeter.Additionally, can also pass through on heat pump core bag support slipper 1 painted (such as, it is coated with red lead powder), check the mated condition of heat pump core bag support slipper 1 and air pump shell 10, the installation situation of heat pump core bag can be emulated owing to having only to installation heat pump core bag support slipper 1 on installing rack, it is thus possible to avoid that false point occurs when dyeing inspection, to promote the accuracy checked.
But, in step s3, if heat pump core bag support slipper 1 and air pump shell 10 loose contact, it is necessary to heat pump core bag support slipper 1 would be repaiied and grinds process, until making heat pump core bag support slipper 1 meet setting requirement with coordinating of air pump shell 10.In use have only to be installed to heat pump core by relevant position wrap repairing ground heat pump core bag support slipper 1.
Below by way of concrete application example, the technique effect of the present invention is further described.No. 12 heat pump long period of Suizhong Power "Promplast-14" Co., Ltd exists vibrates big problem, repeatedly water pump is disintegrated, and changes heat pump core bag, but effect is all inconspicuous, vibrates big problem and yet suffer from.And, check when checking the contact situation of heat pump core bag support slipper 1 with raw mode that result all meets regulation every time, but when next time disintegrates it have been found that the contact of heat pump core bag support slipper 1 has unreal phenomenon.And checking tool and contact inspection method is contacted by the heat pump core bag support slipper of the present invention, the contact thoroughly solving heat pump core bag support slipper 1 checks the false problem of result, it is greatly improved the accuracy that contact checks, and this contact checking tool also has the advantages such as making is simple, cost is low, practical.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can being carried out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode.In order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by the present invention separately.
Additionally, can also carry out combination in any between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (11)

1. heat pump core bag support slipper contact checking tool, it is characterized in that, described contact checking tool includes installing rack and multiple heat pumps core bag support slipper (1) being installed on described installing rack, and the relative position between described heat pump core bag support slipper (1) can adjust.
2. heat pump core bag support slipper according to claim 1 contact checking tool, it is characterized in that, described installing rack is telescopic connecting rod (2), and described heat pump core bag support slipper (1) is respectively arranged in the two ends of described connecting rod (2).
3. heat pump core bag support slipper according to claim 2 contact checking tool, it is characterized in that, described connecting rod (2) includes the first bar (21) and second bar (22) of connector (23) and coaxial setting, one end of described first bar (21) is connected by described connector (23) with one end of described second bar (22), and described first bar (21) and described second bar (22) all can be mobile relative to described connector (23), described heat pump core bag support slipper (1) is respectively arranged in the free end of described first bar (21) and the free end of described second bar (22).
4. heat pump core bag support slipper according to claim 3 contact checking tool, it is characterized in that, described connector (23) is connecting cylinder, and in the first end of the described connecting cylinder of one end insertion of described first bar (21) and one end of described second bar (22) is inserted in the second end of described connecting cylinder.
5. heat pump core bag support slipper according to claim 4 contact checking tool, it is characterised in that described first bar (21) and described second bar (22) are connected with described connecting cylinder each through screw thread.
6. heat pump core bag support slipper according to claim 5 contact checking tool, it is characterized in that, described connecting rod (2) also includes the stop nut (24) being respectively arranged on described first bar (21) and described second bar (22), and described stop nut (24) can bear against the end face of described connecting cylinder.
7. heat pump core bag support slipper according to claim 2 contact checking tool, it is characterised in that described heat pump core bag support slipper (1) is connected with described connecting rod (2) each through screw thread.
8. heat pump core bag support slipper contact inspection method, it is characterised in that described contact inspection method comprises the steps:
S1, heat pump core bag support slipper (1) is installed on heat pump core wraps and measure the standard relative position between described heat pump core bag support slipper (1);
S2, wrap to take off from described heat pump core by described heat pump core bag support slipper (1) and be installed on installing rack again, and the relative position between described heat pump core bag support slipper (1) on described installing rack is adjusted to identical with described standard relative position;
S3, described heat pump core bag support slipper (1) being arranged on described installing rack is put into air pump shell (10), check the mated condition of described heat pump core bag support slipper (1) and described air pump shell (10).
9. heat pump core bag support slipper according to claim 8 contact inspection method, it is characterized in that, in described step S2, described installing rack is telescopic connecting rod (2), described heat pump core bag support slipper (1) is respectively arranged in the two ends of described connecting rod (2), by adjusting the length of described connecting rod (2), make the relative position between described heat pump core bag support slipper (1) on described connecting rod (2) identical with standard relative position.
10. heat pump core bag support slipper according to claim 8 contact inspection method, it is characterized in that, in described step S3, by the upper painted and/or use clearance gauge described heat pump core bag support slipper (1), check the mated condition of described heat pump core bag support slipper (1) and described air pump shell (10).
11. heat pump core bag support slipper according to claim 8 contact inspection method, it is characterized in that, in described step S3, if described heat pump core bag support slipper (1) and described air pump shell (10) loose contact, need described heat pump core bag support slipper (1) is repaiied to grind process, until making described heat pump core bag support slipper (1) meet setting requirement with coordinating of described air pump shell (10).
CN201610313319.9A 2016-05-12 2016-05-12 Heat pump core packet support slipper contacts checking tool and contact inspection method Active CN105783666B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010217118A (en) * 2009-03-18 2010-09-30 Hasegawa Kanagata Kogyo:Kk Inner diameter measuring tool of three-claw chuck
CN202494399U (en) * 2011-12-06 2012-10-17 陕西欧舒特汽车股份有限公司 Novel multifunctional gauge rod
CN202994051U (en) * 2013-01-17 2013-06-12 合肥熔安动力机械有限公司 Auxiliary fixture for measuring the internal diameter of a shallow hole
CN203396330U (en) * 2013-07-26 2014-01-15 河北建设集团千秋管业有限公司 Scale for measuring internal diameter of pipeline
CN104165559A (en) * 2014-08-19 2014-11-26 无锡创明传动工程有限公司 Taper plug gauge used for taper hole detection
CN104359379A (en) * 2014-11-17 2015-02-18 上海外高桥造船有限公司 Measuring tool
CN204286304U (en) * 2014-11-28 2015-04-22 中国航空工业集团公司沈阳发动机设计研究所 A kind of axisymmetric nozzle throat diameter survey instrument
CN206311044U (en) * 2016-05-12 2017-07-07 中国神华能源股份有限公司 Heat pump core bag support slipper contacts checking tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010217118A (en) * 2009-03-18 2010-09-30 Hasegawa Kanagata Kogyo:Kk Inner diameter measuring tool of three-claw chuck
CN202494399U (en) * 2011-12-06 2012-10-17 陕西欧舒特汽车股份有限公司 Novel multifunctional gauge rod
CN202994051U (en) * 2013-01-17 2013-06-12 合肥熔安动力机械有限公司 Auxiliary fixture for measuring the internal diameter of a shallow hole
CN203396330U (en) * 2013-07-26 2014-01-15 河北建设集团千秋管业有限公司 Scale for measuring internal diameter of pipeline
CN104165559A (en) * 2014-08-19 2014-11-26 无锡创明传动工程有限公司 Taper plug gauge used for taper hole detection
CN104359379A (en) * 2014-11-17 2015-02-18 上海外高桥造船有限公司 Measuring tool
CN204286304U (en) * 2014-11-28 2015-04-22 中国航空工业集团公司沈阳发动机设计研究所 A kind of axisymmetric nozzle throat diameter survey instrument
CN206311044U (en) * 2016-05-12 2017-07-07 中国神华能源股份有限公司 Heat pump core bag support slipper contacts checking tool

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