CN201917514U - Clamping device for communication pipe static friction coefficient measuring instrument - Google Patents

Clamping device for communication pipe static friction coefficient measuring instrument Download PDF

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Publication number
CN201917514U
CN201917514U CN 201020692206 CN201020692206U CN201917514U CN 201917514 U CN201917514 U CN 201917514U CN 201020692206 CN201020692206 CN 201020692206 CN 201020692206 U CN201020692206 U CN 201020692206U CN 201917514 U CN201917514 U CN 201917514U
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CN
China
Prior art keywords
clamping device
static friction
measuring instrument
horizontal support
communication pipe
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 201020692206
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Chinese (zh)
Inventor
郭东华
马学锋
马骏
王超
陆宇红
包左军
张智勇
刘恒权
朱传征
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Research Institute of Highway Ministry of Transport
Original Assignee
Research Institute of Highway Ministry of Transport
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 Research Institute of Highway Ministry of Transport filed Critical Research Institute of Highway Ministry of Transport
Priority to CN 201020692206 priority Critical patent/CN201917514U/en
Application granted granted Critical
Publication of CN201917514U publication Critical patent/CN201917514U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a clamping device for a communication pipe static friction coefficient measuring instrument. The communication pipe static friction coefficient measuring instrument comprises a test rack, the clamping device, a measuring head push-pull device, a static friction transmission device, a control device and an operation panel, wherein the clamping device consists of a horizontal support table, a clamp and a manual rocker, the clamp is disposed on the horizontal support table and used for clamping a test piece, and height of the horizontal support table can be adjusted through the manual rocker. The clamping device is simple in structure and convenient in mounting, and capable of clamping the test piece firmly, and height and position of the test piece can be flexibly conveniently adjusted through the manual rocker and an adjusting handle, so that the test piece can be aligned with the measuring head push-pull device conveniently and testing accuracy of the measuring instrument is improved.

Description

A kind of clamping device that is used for communication pipe coefficient of static friction measuring instrument
Technical field
The utility model belongs to field tests, particularly relates to a kind of clamping device that is used for communication pipe coefficient of static friction measuring instrument.
Background technology
HDPE Silicon core plastic tube (be called for short silicon core pipe), by high density polyethylene (HDPE) outer wall, outer vitta and solid siliceous in lubricating layer forms, directly be layed in undergroundly, optical cable is believed in interior break-through.Running through highway silicon core pipe completely connects a series of airfield equipments such as wagon detector, video camera, emergency call, advices plate and Surveillance center, message center, charge station by people's (hand) hole, make between them and carry out signal, data transmission by optical cable, the person can in time grasp highway information to make the highway operation, cope with contingencies, in time rescue, relieve traffic congestion etc., thereby guarantee normal, orderly, safe highway operation.
Silicon core pipe laying project belongs to concealed work, and product is embedded in underground, suitable wears the maintenance cost that cable technology will influence optical cable laying quality and later stage.The air-blowing cable laying has been widely used in the engineering reality at present, because it is little that the silicon core is moulded the inwall friction factor of pipe, when optical cable is compressed after air is blown into pipeline, cable is walked in pipeline with suspended state fast with high velocity air, wear whole that the suffered thrust of cable is even distribution in the cable process, avoided resembling and cable is stretched the traction method and easily go to pot.
With regard to silicon core pipe product itself, the key technical indexes that cable is blown in influence is the inwall friction factor, and this index is to estimate the key of silicon core pipe quality good or not.Blow in the cable process, the friction factor that optical cable is subjected in silicon core pipe has the branch of coefficient of static friction and kinetic friction coefficient.The original state that the coefficient of static friction reaction gas is blown over journey needs great air pressure and flow, the peak power of decision air compressor, and kinetic friction coefficient reaction optical cable overcomes the efficient and the energy consumption of static friction after-blow cable.
The instrument that carries out the coefficient of static friction measurement is a communication pipe coefficient of static friction measuring instrument, and the clamping of test specimen will influence the accuracy of test on this instrument.
The utility model content
In order to address the above problem, the utility model provides a kind of clamping device that is used for communication pipe coefficient of static friction measuring instrument, described communication pipe coefficient of static friction measuring instrument comprises testing jig, clamping device, gauge head push-pull device at fixed, stiction gearing, control device and guidance panel, wherein clamping device comprises horizontal support platform, anchor clamps and manual rocking handle, anchor clamps are arranged on the horizontal support platform, be used to clamp test specimen, the height of horizontal support platform can be regulated by manual rocking handle.
Further, described horizontal support platform comprises brace table and four alignment bearings, brace table is supported on the platform of testing jig by four alignment bearings, and manually rocking handle is adjusted the height of brace table by worm gear arrangement.
Further, described anchor clamps comprise fixture block slide rail, fixture block, adjusting screw mandrel, adjusting handle and baffle plate, and two fixture blocks are used to clamp test specimen, can slide along the fixture block slide rail, and adjusting handle passes baffle plate and is connected to fixture block.
Further, two relative faces of fixture block are planes; Perhaps, two relative faces of fixture block are curved surfaces.
Further, manual rocking handle is installed in the sidepiece of testing jig.
The disclosed clamping device of the utility model is simple in structure, easy for installation, adopt clamping device of the present utility model clamping test pieces securely, can regulate the height and the position of test specimen simultaneously easily and flexibly by manual rocking handle and adjusting handle, make things convenient for it to align, improved the test accuracy of measuring instrument with a side push-pull device at fixed.
Description of drawings
Fig. 1: communication pipe coefficient of static friction measuring instrument structural representation;
Fig. 2: the utility model clamping device synoptic diagram;
Fig. 3: coefficient of static friction test philosophy figure.
Description of reference numerals:
The 1-testing jig;
The 11-platform;
The 2-clamping device;
21-horizontal support platform; The 211-alignment bearing; The 212-brace table;
The 22-anchor clamps; 221-fixture block slide rail; The 222-fixture block; 223-regulates screw mandrel;
The 224-adjusting handle; The 225-block;
The manual rocking handle of 23-;
3-gauge head push-pull device at fixed;
4-stiction gearing;
5-control device and guidance panel;
6-standard coupon;
The 7-test specimen.
Embodiment
Below in conjunction with accompanying drawing the utility model is specifically described.
As shown in Figure 1, the communication pipe friction coefficient measuring apparatus mainly comprises testing jig 1, clamping device 2, gauge head push-pull device at fixed 3, stiction gearing 4, control device and guidance panel 5 etc., wherein testing jig 1 has a platform 11, clamping device 2 and gauge head push-pull device at fixed 3 are arranged on the platform 11, and the two is staggered relatively.Testing jig 1 also has a downward-sloping operating surface, and control device and guidance panel 5 and control device are set on it.Stiction gearing 4 is divided into two parts, a part be arranged on platform below, another one is arranged on above the platform.
As shown in Figure 2, clamping device 2 comprises horizontal support platform 21, anchor clamps 22 and manual rocking handle 23, wherein the horizontal support platform comprises brace table 212 and four alignment bearings 211, brace table 212 is supported by four alignment bearings 211, come four alignment bearings 211 of lifting by the manual rocking handle 23 that is arranged on testing jig 1 sidepiece, thereby regulate the clamping height of devices.Anchor clamps 22 comprise fixture block slide rail 221, two fixture blocks 222, regulate screw mandrel 223, adjusting handle 224 and 225, two fixture blocks 222 of two baffle plates is used to clamp test specimen, can move along fixture block slide rail 221.Adjusting handle 224 passes baffle plate 225 and is connected to fixture block 222, when testing, test specimen is placed on two fixture blocks, 222 centres, by adjusting handle 224 test block is aimed at the contact of gauge head push-pull device at fixed 3.
Wherein two relative faces of anchor clamps can be the planes, also can be the curved surfaces that adapts with test specimen.
Specifically describe the test process of this measuring instrument below in conjunction with Fig. 7.
Weigh the quality of getting standard coupon 6 in the balance, and calculate coupon gravity.Test specimen 7 is positioned between two fixture blocks 222 of communication pipe coefficient of static friction measuring instrument anchor clamps 22, regulates, test specimen is adjusted to suitable position, be fixed with adjusting handle 224.Standard coupon 6 is put into test specimen 7, and the outer end of standard coupon 6 rubbing surface ends and test specimen 7 at grade.Regulating horizontal support platform 21 makes standard coupon 6 longitudinal centre lines also slightly contact with the gauge head central lines of gauge head push-pull device at fixed 3.Start the stiction measuring instrument, observe measuring instrument time-Li value curve, when maximum, force value peak appears in curve, then stop to stretch, write down the maximum, force value.Take multiple measurements by this, as nine times, at every turn should be with 20 °~40 ° of standard coupon rotations, the mean value of getting the stiction of measuring for nine times is as test result.
Calculate coefficient of static friction μ according to formula (1), and remain into behind the radix point the 3rd.
μ = F max mg . . . ( 1 )
In the formula:
The coefficient of static friction of μ-test specimen that communication pipe coefficient of static friction measuring instrument records;
F MaxThe maximum, force value that pull and push dynamometer is obtained in-communication pipe coefficient of static friction the measuring instrument, unit is N;
The quality of m-standard coupon, unit is kg;
G-acceleration of gravity, unit are m/s 2

Claims (6)

1. clamping device that is used for communication pipe coefficient of static friction measuring instrument, described communication pipe coefficient of static friction measuring instrument comprises testing jig (1), clamping device (2), gauge head push-pull device at fixed (3), stiction gearing (4), control device and guidance panel (5), it is characterized in that: clamping device comprises horizontal support platform (21), anchor clamps (22) and manual rocking handle (23), anchor clamps (22) are arranged on the horizontal support platform (21), be used to clamp test specimen, the height of horizontal support platform (21) can be regulated by manual rocking handle (23).
2. clamping device according to claim 1, it is characterized in that: described horizontal support platform (21) comprises brace table (212) and four alignment bearings (211), by four alignment bearings (211) brace table (212) is supported on the platform of testing jig, manually rocking handle is adjusted the height of brace table (212) by worm gear arrangement.
3. clamping device according to claim 1 and 2, it is characterized in that: described anchor clamps (22) comprise fixture block slide rail (221), fixture block (222), regulate screw mandrel (223), adjusting handle (224) and baffle plate (225), two fixture blocks (222) are used to clamp test specimen, can slide along fixture block slide rail (221), adjusting handle (224) passes baffle plate (225) and is connected to fixture block (222).
4. clamping device according to claim 3 is characterized in that: the relative face of two fixture blocks (222) is the plane.
5. clamping device according to claim 3 is characterized in that: the relative face of two fixture blocks (222) is a curved surface.
6. according to claim 1,2,4 or 5 each described clamping devices, it is characterized in that: manually rocking handle (23) is installed in the sidepiece of testing jig (1).
CN 201020692206 2010-12-30 2010-12-30 Clamping device for communication pipe static friction coefficient measuring instrument Expired - Fee Related CN201917514U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020692206 CN201917514U (en) 2010-12-30 2010-12-30 Clamping device for communication pipe static friction coefficient measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020692206 CN201917514U (en) 2010-12-30 2010-12-30 Clamping device for communication pipe static friction coefficient measuring instrument

Publications (1)

Publication Number Publication Date
CN201917514U true CN201917514U (en) 2011-08-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201020692206 Expired - Fee Related CN201917514U (en) 2010-12-30 2010-12-30 Clamping device for communication pipe static friction coefficient measuring instrument

Country Status (1)

Country Link
CN (1) CN201917514U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103076279A (en) * 2013-01-07 2013-05-01 河北省电力公司电力科学研究院 Measuring method for static friction coefficient of galvanized angle steel of pylon
CN104132887A (en) * 2014-06-06 2014-11-05 西北工业大学 Device for measuring pipe/die friction coefficient during pipe bending forming
CN105181576A (en) * 2015-10-14 2015-12-23 张家港保税区亚鑫精密制管有限公司 Pipe inner wall friction coefficient detecting device for steel pipe for inner cylinder barrel of damper
CN105773548A (en) * 2016-03-27 2016-07-20 苏州科技学院 Machining device for miniature parts
CN106017265A (en) * 2016-07-26 2016-10-12 四川然新材料科技有限公司 Arc-shaped part height measuring device
CN106091885A (en) * 2016-07-26 2016-11-09 四川然新材料科技有限公司 A kind of device of part height measure batch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103076279A (en) * 2013-01-07 2013-05-01 河北省电力公司电力科学研究院 Measuring method for static friction coefficient of galvanized angle steel of pylon
CN103076279B (en) * 2013-01-07 2016-02-03 河北省电力公司电力科学研究院 The measuring method of steel tower Zinc-coated angle steel coefficient of static friction
CN104132887A (en) * 2014-06-06 2014-11-05 西北工业大学 Device for measuring pipe/die friction coefficient during pipe bending forming
CN105181576A (en) * 2015-10-14 2015-12-23 张家港保税区亚鑫精密制管有限公司 Pipe inner wall friction coefficient detecting device for steel pipe for inner cylinder barrel of damper
CN105773548A (en) * 2016-03-27 2016-07-20 苏州科技学院 Machining device for miniature parts
CN106017265A (en) * 2016-07-26 2016-10-12 四川然新材料科技有限公司 Arc-shaped part height measuring device
CN106091885A (en) * 2016-07-26 2016-11-09 四川然新材料科技有限公司 A kind of device of part height measure batch

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110803

Termination date: 20121230