CN201732031U - Equipment for measuring compression strength and anti-blasting ability of pipes - Google Patents
Equipment for measuring compression strength and anti-blasting ability of pipes Download PDFInfo
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- CN201732031U CN201732031U CN2010202882136U CN201020288213U CN201732031U CN 201732031 U CN201732031 U CN 201732031U CN 2010202882136 U CN2010202882136 U CN 2010202882136U CN 201020288213 U CN201020288213 U CN 201020288213U CN 201732031 U CN201732031 U CN 201732031U
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- pyramid body
- plunger
- polygonal pyramid
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Abstract
Equipment for measuring compression strength and anti-blasting ability of pipes comprises a support which is fixedly connected with the rear end of a guide sleeve; a plunger is slidably arranged in the guide sleeve; the rear end of the plunger is connected with a piston rod of an oil cylinder; a cylinder body of the oil cylinder is arranged and fixed on the support; the front end of the plunger is provided with a regular polygonal pyramid, a regular polygonal pyramid frustum, a cone or a cone frustum; each side surface of the regular polygonal pyramid or the regular polygonal pyramid frustum is respectively matched with the end surface of the inner end of a radial sliding block; the side wall of the cone or the cone frustum is matched with the end surfaces of the inner ends of more than three radial sliding blocks; the outer end of each radial sliding block is respectively provided with a top plate; a load sensor is respectively arranged between the surface of the inner end of each top plate and the outer end surface of the radial sliding block; the excircle surface of each top plate is an arc surface; and the excircle surfaces of all the top plates can be spliced into a ring. The purpose of the utility model is to provide a method and equipment for measuring the compression strength and anti-blasting ability of the pipes, which have the advantages of compact structure, simple operation, high working efficiency and is convenient to use.
Description
Technical field
The utility model relates to a kind of device that carries out the general metering of power or stress by mechanically actuated, relates in particular to a kind of equipment of measuring the tubing compressive resistance.
Background technology
Existing pipeline internal pressure-resistant test is the pipeline of intercepting certain-length, two ends are blocked with the plug anchor clamps, be full of pipeline with liquid again, be pressurized to a certain authorised pressure and keep certain hour with forcing pump then, in this course, determine its voltage endurance capability by the situation of observation pipeline; And the anti-burst pressure test is identical with the water pressure resistance test on the plug installation method of pipeline, just requires at certain hour pipeline to be suppressed to damage in process of the test.But be used for the bigger plastic conduit of caliber of water delivery for some, as the macromolecule compound pipeline complex pipeline, or the plastic spiral pipe road of field fabrication, if caliber is greater than 300mm, adopt the conventional interior hydraulic test method of plug anchor clamps at the construction field (site) pipeline to be carried out internal pressure test, because caliber is very big, two ends are difficult for shutoff, make experiment be difficult to carry out.
The utility model content
The purpose of this utility model provides a kind of compact conformation, and is simple to operate, high efficiency, measurement tubing compressive resistance easy to use and the equipment of anti-burst ability.
The equipment that is used to measure tubing compressive resistance and anti-burst ability of the present utility model, comprise support, the rear end of support and pilot sleeve is fixedly linked, can be provided with plunger slidably in the pilot sleeve, the rear end of plunger links to each other with the piston rod of oil cylinder, the cylinder body of oil cylinder is fixed on the described support, the front end of described plunger has positive polygonal pyramid body or positive multi-pyramid body or cone or Rotary-table, the big end end face of positive polygonal pyramid body or positive multi-pyramid body or cone or Rotary-table links to each other with the front end one of plunger, the cone angle of positive polygonal pyramid body or positive multi-pyramid body or cone or Rotary-table forward, match with the end face of a radial slider inner end respectively in each side of positive polygonal pyramid body or positive multi-pyramid body, the sidewall of cone or Rotary-table matches with the end face of radial slider inner end more than three, radially be provided with pilot hole on the sidewall of described pilot sleeve, the quantity of pilot hole is identical with the quantity of described radial slider, the middle part of radial slider can be inserted in the corresponding pilot hole slidably, the outer end of each radial slider is respectively equipped with top board, be respectively equipped with a load transducer between the surface, inner end of each top board and the outer face of radial slider, the periphery of each top board is an arcwall face, and all the periphery of top board can be spliced into an annulus.
The equipment of measurement tubing compressive resistance of the present utility model and anti-burst ability, wherein said positive polygonal pyramid body are square cone or positive hexagonal pyramid body or positive eight pyramids, and described positive multi-pyramid body is positive truncated rectangular pyramids body or positive six prismoids or positive eight prismoids.
The equipment of measurement tubing compressive resistance of the present utility model and anti-burst ability, be to utilize force balance principle, calculate the relation of thrust and internal water pressure, realized need not the pipeline internal pressure test of water-filling, comprise test of pipeline water pressure resistance and explosion bulge test, can be used for measuring the interior pressure value that the plastic spiral pipe road of macromolecule compound pipeline complex pipeline or field fabrication can bear, thereby before formally trying the water after the pipeline construction installation, can tentatively judge the water pressure resistance or the burst pressure of pipeline, owing to adopted the distinctive equipment of the utility model, for some caliber greater than the bigger plastic conduit of the caliber that is used for water delivery of 300mm, as the macromolecule compound pipeline complex pipeline, or the plastic spiral pipe road of field fabrication, also can adopt equipment of the present utility model to determine the interior pressure value that it can bear, and equipment of the present utility model have compact conformation, simple to operate, high efficiency, characteristics easy to use.
Be described in further detail below in conjunction with the equipment of accompanying drawing measurement tubing compressive resistance of the present utility model and anti-burst ability.
Description of drawings
Fig. 1 looks cut-open view for the master of the equipment of measurement tubing compressive resistance of the present utility model and anti-burst ability;
Fig. 2 is the side cutaway view of the top plate portion of Fig. 1.
Embodiment
Measure the method for tubing compressive resistance and anti-burst ability, it comprises the steps:
A, preparation tubular product sample and four top boards, measure the diameter of bore D and the length B of tubular product sample, select to determine the extrados radius of each top board according to the interior pore radius of tubular product sample, make each top board extrados radius identical with pore radius in the tubular product sample, allow the length of each top board more than or equal to the length of tubular product sample, all the periphery of top boards can be spliced into an annulus;
B, whole top boards are spliced into a circle and place the endoporus of tubular product sample, allow the inwall of tubular product sample paste mutually with the exterior arc surface of each top board;
C, respectively each top board is radially applied an acting force T from inside to outside simultaneously
i, and measure each acting force T
iSize;
D, in the time of setting, acting force Ti is enlarged to synchronously with the impaired state of tubular product sample, utilizes the acting force T that measures
iSize, diameter of bore D and the length B with this numerical value and tubular product sample brings following computing formula into then:
In the formula: the compressive resistance of P-tubing, measurement unit MPa;
T
iThe numerical value of-Di i load transducer demonstration (i=1,2 ... n), measurement unit KN;
The quantity of n-load transducer;
The diameter of bore of D-pipeline sample, measurement unit m;
The length of B-pipeline sample, measurement unit m;
E, according to the maximum compressive resistance of tubing, utilize existing reduction formula can be converted to pipeline anti-burst ability pressure values.
As depicted in figs. 1 and 2, the equipment of measurement tubing compressive resistance of the present utility model and anti-burst ability, comprise support 11, support 11 is fixedly linked with the rear end of pilot sleeve 8, can be provided with plunger 5 slidably in the pilot sleeve 8, the rear end of plunger 5 links to each other with the piston rod 9 of oil cylinder 10, the cylinder body of oil cylinder 10 is fixed on the support 11, the front end of plunger 5 has positive polygonal pyramid body 7, positive polygonal pyramid body 7 is a square cone, the big end end face of positive polygonal pyramid body 7 links to each other with the front end one of plunger 5, the cone angle of positive polygonal pyramid body 7 forward, match with the end face of radial slider 3 inner ends respectively in each side of positive polygonal pyramid body 7, radially be provided with pilot hole on the sidewall of pilot sleeve 8, the quantity of pilot hole is identical with the quantity of described radial slider 3, the middle part of radial slider 3 can be inserted in the corresponding pilot hole slidably, the outer end of each radial slider 3 is respectively equipped with top board 2, be respectively equipped with a load transducer 4 between the surface, inner end of each top board 2 and the outer face of radial slider 3, the periphery of each top board 2 is an arcwall face, all the periphery of top board can be spliced into an annulus, oil cylinder 10 links to each other with manual or electric hydraulic station 13 by pipeline 12, and pipeline 12 adopts flexible pipe to make.
The front end of above-mentioned plunger 5 also can be to have positive multi-pyramid body or cone or Rotary-table, the big end end face of positive multi-pyramid body or cone or Rotary-table links to each other with the front end one of plunger 5, the cone angle of positive multi-pyramid body or cone or Rotary-table forward, match with the end face of radial slider 3 inner ends respectively in each side of positive multi-pyramid body, the sidewall of cone or Rotary-table matches with the end face of radial slider 3 inner ends more than three.
Above-mentioned positive polygonal pyramid body 7 also can be positive hexagonal pyramid body or positive eight pyramids, and the positive multi-pyramid body is positive truncated rectangular pyramids body or positive six prismoids or positive eight prismoids.
The equipment of measurement tubing compressive resistance of the present utility model and anti-burst ability in use, can prepare tubing 1 sample earlier, measure the diameter of bore D and the length B of tubular product sample 1, select to determine the extrados radius of each top board 2 again according to the interior pore radius of tubular product sample 1, make each top board 2 extrados radius identical with pore radius in the tubular product sample 1, allow the length of each top board 2 more than or equal to the length of tubular product sample 1, all the periphery of top boards 2 can be spliced into an annulus; Then whole top boards 2 are installed on the load transducer 4 of radial slider 3 outer ends, and whole top boards 2 are placed the endoporus of tubular product sample 1, utilize hydraulic power unit 13 by the road 12 to oil cylinder 10 delivery hydraulic pressure oil again, allow the piston rod promotion plunger 5 of oil cylinder 10 move right, each side of positive polygonal pyramid body 7 will promote the radially outwards motion of a radial slider 3 respectively, allow the inwall of tubular product sample 1 paste tightly mutually, and respectively each top board is radially applied an acting force T from inside to outside simultaneously with the exterior arc surface of each top board 2
i, utilize load transducer 4 to measure each acting force T
iSize, and in the time of setting, acting force Ti is enlarged to synchronously with the impaired state of tubular product sample,, then with acting force T
iMagnitude numerical value and the diameter of bore D and the length B of tubular product sample bring following computing formula into:
In the formula: the compressive resistance of P-tubing, measurement unit MPa;
T
iThe numerical value of-Di i load transducer demonstration (i=1,2 ... n), measurement unit KN;
The diameter of bore of D-pipeline sample, measurement unit m;
The length of B-pipeline sample, measurement unit m;
According to the maximum compressive resistance of tubing, utilize existing reduction formula can be converted to pipeline anti-burst ability pressure values again.
The equipment of measurement tubing compressive resistance of the present utility model and anti-burst ability, can be used for measuring the interior pressure value that the plastic spiral pipe road of macromolecule compound pipeline complex pipeline or field fabrication can bear, thereby before formally trying the water after the pipeline construction installation, can tentatively judge the water pressure resistance or the burst pressure of pipeline.The utility model mainly is the pipeline at field fabrication, and the utility model provides a kind of new equipment for the detection to pipeline quality at the construction field (site).The utility model utilizes force balance principle to calculate the relation of thrust and internal water pressure, realized need not the pipeline internal pressure test of water-filling, comprise test of pipeline water pressure resistance and explosion bulge test, water pressure resistance that relates in the test and burst pressure tests require can be with reference to corresponding plastic pipe product standard and water pressure resistance test method standard (GB/T6111).
Embodiment recited above is described preferred implementation of the present utility model; be not that the utility model scope is limited; design under the spiritual prerequisite not breaking away from the utility model; various distortion and improvement that the common engineering technical personnel in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (2)
1. be used to measure the equipment of tubing compressive resistance and anti-burst ability, it is characterized in that: comprise support (11), support (11) is fixedly linked with the rear end of pilot sleeve (8), can be provided with plunger (5) slidably in the pilot sleeve (8), the rear end of plunger (5) links to each other with the piston rod (9) of oil cylinder (10), the cylinder body of oil cylinder (10) is fixed on the described support (11), the front end of described plunger (5) has positive polygonal pyramid body (7) or positive multi-pyramid body or cone or Rotary-table, the big end end face of positive polygonal pyramid body (7) or positive multi-pyramid body or cone or Rotary-table links to each other with the front end one of plunger (5), the cone angle of positive polygonal pyramid body (7) or positive multi-pyramid body or cone or Rotary-table forward, match with the end face of a radial slider (3) inner end respectively in each side of positive polygonal pyramid body (7) or positive multi-pyramid body, the sidewall of cone or Rotary-table matches with the end face of radial slider (3) inner end more than three, radially be provided with pilot hole on the sidewall of described pilot sleeve (8), the quantity of pilot hole is identical with the quantity of described radial slider (3), the middle part of radial slider (3) can be inserted in the corresponding pilot hole slidably, the outer end of each radial slider (3) is respectively equipped with top board (2), be respectively equipped with a load transducer (4) between the surface, inner end of each top board (2) and the outer face of radial slider (3), the periphery of each top board (2) is an arcwall face, and all the periphery of top board can be spliced into an annulus.
2. the equipment of measurement tubing compressive resistance according to claim 1 and anti-burst ability, it is characterized in that: described positive polygonal pyramid body (7) is square cone or positive hexagonal pyramid body or positive eight pyramids, and described positive multi-pyramid body is positive truncated rectangular pyramids body or positive six prismoids or positive eight prismoids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202882136U CN201732031U (en) | 2010-08-11 | 2010-08-11 | Equipment for measuring compression strength and anti-blasting ability of pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202882136U CN201732031U (en) | 2010-08-11 | 2010-08-11 | Equipment for measuring compression strength and anti-blasting ability of pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732031U true CN201732031U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202882136U Expired - Fee Related CN201732031U (en) | 2010-08-11 | 2010-08-11 | Equipment for measuring compression strength and anti-blasting ability of pipes |
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| Country | Link |
|---|---|
| CN (1) | CN201732031U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907543A (en) * | 2010-08-11 | 2010-12-08 | 中国水利水电科学研究院 | Method and equipment for measuring compressive strength and anti-explosion capability of tubing |
| CN110487629A (en) * | 2019-07-12 | 2019-11-22 | 武汉大学 | A kind of pressure testing machine self-tightening type round tube hoop tensile test device for keeping round tube curvature |
| CN110821492A (en) * | 2019-10-21 | 2020-02-21 | 河南理工大学 | Bidirectional high-pressure jet flow including high-pressure airflow energy uniform distributor and using method |
-
2010
- 2010-08-11 CN CN2010202882136U patent/CN201732031U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907543A (en) * | 2010-08-11 | 2010-12-08 | 中国水利水电科学研究院 | Method and equipment for measuring compressive strength and anti-explosion capability of tubing |
| CN110487629A (en) * | 2019-07-12 | 2019-11-22 | 武汉大学 | A kind of pressure testing machine self-tightening type round tube hoop tensile test device for keeping round tube curvature |
| CN110821492A (en) * | 2019-10-21 | 2020-02-21 | 河南理工大学 | Bidirectional high-pressure jet flow including high-pressure airflow energy uniform distributor and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20140811 |
|
| EXPY | Termination of patent right or utility model |