CN201917513U - Measuring head push-pull device for communication pipe static friction coefficient measuring instrument - Google Patents
Measuring head push-pull device for communication pipe static friction coefficient measuring instrument Download PDFInfo
- Publication number
- CN201917513U CN201917513U CN2010206921604U CN201020692160U CN201917513U CN 201917513 U CN201917513 U CN 201917513U CN 2010206921604 U CN2010206921604 U CN 2010206921604U CN 201020692160 U CN201020692160 U CN 201020692160U CN 201917513 U CN201917513 U CN 201917513U
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- China
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- push
- pull
- pull device
- slide rail
- fixed
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Abstract
Disclosed is a measuring head push-pull device for a communication pipe static friction coefficient measuring instrument. The communication pipe static friction coefficient measuring instrument comprises a test rack, a clamping device, the measuring head push-pull device, a static friction transmission device, a control device and an operation panel, wherein the test rack is provided with a platform, the clamping device and the measuring head push-pull device are disposed on the platform oppositely, the friction transmission device is connected to the measuring head push-pull device, the measuring head push-pull device includes two slide rail blocks, a slide rail, an instrument connecting block and a push-pull force meter, the two slide rail blocks are disposed on the platform of the test rack, the slide rail is disposed on the slide rail blocks, the instrument connecting block is capable of sliding on the slide rail, and the push-pull force meter is fixed to the instrument connecting block. The measuring head push-pull device is simple in structure and convenient in mounting, the maximum push force value can be accurately measured by the push-pull device, and thereby static friction coefficient of a test piece can be measured more accurately and accuracy of the measuring instrument can be improved.
Description
Technical field
The utility model belongs to field tests, particularly relates to a kind of gauge head push-pull device at fixed 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.
Along with improving constantly of measuring technology, the accuracy of measurement of communication pipe coefficient of static friction measuring instrument is required also to improve constantly.
The utility model content
In order to adapt to requirement to communication pipe coefficient of static friction measuring instrument accuracy of measurement, the utility model discloses a kind of gauge head push-pull device at fixed 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, the gauge head push-pull device at fixed, the stiction gearing, control device and guidance panel, wherein testing jig has a platform, clamping device and gauge head push-pull device at fixed are arranged on the platform, the two is staggered relatively, the friction force gearing is connected to the gauge head push-pull device at fixed, wherein said gauge head push-pull device at fixed comprises the slide rail cushion block, slide rail, instrument contiguous block and pull and push dynamometer, wherein two slide rail cushion blocks are arranged on the platform of testing jig, on the slide rail cushion block slide rail is set, the instrument contiguous block can slide on slide rail, and pull and push dynamometer is fixed on the instrument contiguous block.
Further, described slide rail comprises sliding rail and slide block, and slide block can slide before and after sliding rail, and the instrument contiguous block links to each other with slide block.
Further, the front end of pull and push dynamometer has an aluminium bar contact, and this contact is used for the detection of stiction.
Further, on the instrument contiguous block, also have a connection piece, be used for being connected with the stay cord of stiction gearing.
Further, on the instrument contiguous block, also have a connection piece, be used for being connected with the stay cord of stiction gearing.
The disclosed push-pull device at fixed of the utility model is simple in structure, easy for installation, by on communication pipe coefficient of static friction measuring instrument, using push-pull device at fixed provided by the utility model, can measure the thrust maximal value exactly, thereby measure the coefficient of static friction of test specimen more accurately, improve the accuracy of measuring instrument.
Description of drawings
Fig. 1: communication pipe coefficient of static friction measuring instrument structural representation;
Fig. 2: gauge head push-pull device at fixed 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;
3-gauge head push-pull device at fixed;
31-slide rail cushion block;
The 32-slide rail; The 321-sliding rail; The 322-slide block;
33-instrument contiguous block;
The 34-pull and push dynamometer;
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 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, gauge head push-pull device at fixed 3 comprises two slide rail cushion blocks 31 that are positioned on the platform 11, and slide rail cushion block 31 is provided with slide rail 32, and slide rail 32 comprises sliding rail 321 and slide block 322, and slide block 322 can slide along sliding rail 321 front and back.Instrument contiguous block 33 links to each other with slide block 322, and pull and push dynamometer 34 is fixed on the instrument contiguous block 33, and the front end of pull and push dynamometer 34 has an aluminium bar contact, and this contact is used for the detection of stiction.
On instrument contiguous block 33, also have a connection piece, be used for being connected with the stay cord of stiction gearing 4.
When testing, test specimen 7 is placed on the clamping device 2, is fixed.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 clamping device makes standard coupon 6 longitudinal centre lines also slightly contact with the gauge head central lines of pull and push dynamometer 34.Start the stiction measuring instrument, stiction gearing 4 begins to stretch, its stay cord provides pulling force for gauge head push-pull device at fixed 3, when pulling force reaches certain value, 3 actions of gauge head push-pull device at fixed, the pulling force of this moment is a maximal value, observe measuring instrument time-Li value curve, when maximum, force value peak appears in curve, then stop to stretch record maximum, force value.Carry out repeatedly time measurement 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.
Claims (5)
1. gauge head push-pull device at fixed that is used for communication pipe coefficient of static friction measuring instrument, 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), 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), the two is staggered relatively, friction force gearing (4) is connected to gauge head push-pull device at fixed (3), it is characterized in that: the gauge head push-pull device at fixed comprises slide rail cushion block (31), slide rail (32), instrument contiguous block (33) and pull and push dynamometer (34), wherein two slide rail cushion blocks (31) are arranged on the platform (11) of testing jig (1), slide rail (32) is set on the slide rail cushion block (31), instrument contiguous block (33) can be gone up at slide rail (32) and slide, and pull and push dynamometer (34) is fixed on the instrument contiguous block (33).
2. according to the gauge head push-pull device at fixed of claim 1, it is characterized in that: slide rail (32) comprises sliding rail (321) and slide block (322), and slide block (322) can slide before and after sliding rail (321), and instrument contiguous block (33) links to each other with slide block (322).
3. according to the gauge head push-pull device at fixed of claim 1 or 2, it is characterized in that: the front end of pull and push dynamometer (34) has an aluminium bar contact, and this contact is used for the static friction force measurement.
4. according to the gauge head push-pull device at fixed of claim 1 or 2, it is characterized in that: go up a connection piece in addition at instrument contiguous block (33), be used for being connected with the stay cord of stiction gearing (4).
5. according to the gauge head push-pull device at fixed of claim 3, it is characterized in that: go up a connection piece in addition at instrument contiguous block (33), be used for being connected with the stay cord of stiction gearing (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010206921604U CN201917513U (en) | 2010-12-30 | 2010-12-30 | Measuring head push-pull device for communication pipe static friction coefficient measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010206921604U CN201917513U (en) | 2010-12-30 | 2010-12-30 | Measuring head push-pull device for communication pipe static friction coefficient measuring instrument |
Publications (1)
Publication Number | Publication Date |
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CN201917513U true CN201917513U (en) | 2011-08-03 |
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Application Number | Title | Priority Date | Filing Date |
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CN2010206921604U Expired - Fee Related CN201917513U (en) | 2010-12-30 | 2010-12-30 | Measuring head push-pull device for communication pipe static friction coefficient measuring instrument |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104406909A (en) * | 2014-11-26 | 2015-03-11 | 北京特种机械研究所 | Device for measuring air cushion friction coefficient |
-
2010
- 2010-12-30 CN CN2010206921604U patent/CN201917513U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104406909A (en) * | 2014-11-26 | 2015-03-11 | 北京特种机械研究所 | Device for measuring air cushion friction coefficient |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |