CN104807704A - Bi-metal composite pipe bending test device - Google Patents

Bi-metal composite pipe bending test device Download PDF

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Publication number
CN104807704A
CN104807704A CN201510233445.9A CN201510233445A CN104807704A CN 104807704 A CN104807704 A CN 104807704A CN 201510233445 A CN201510233445 A CN 201510233445A CN 104807704 A CN104807704 A CN 104807704A
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composite bimetal
bimetal pipe
tested
cylinder
power
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CN201510233445.9A
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CN104807704B (en
Inventor
李华军
朱加强
郭崇晓
张燕飞
郭霖
吴泽
傅海
王小艳
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XI'AN SUNWARD AEROSPACE MATERIAL CO Ltd
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XI'AN SUNWARD AEROSPACE MATERIAL CO Ltd
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Abstract

The invention discloses a bi-metal composite pipe bending test device. The bi-metal composite pipe bending test device comprises a base, wherein two bending force loading mechanisms, two axial force loading mechanisms and a twisting force loading mechanism are installed on the base, a strain gauge is bonded to the outer wall of a to-be-tested bi-metal composite pipe, a camera is arranged in the to-be-tested bi-metal composite pipe, the to-be-test bi-metal composite pipe is arranged above the base, the twisting force loading mechanism is arranged in the middle part of the to-be-tested bi-metal composite pipe, and two axial force loading mechanisms are symmetrically arranged on two ends of the to-be-tested bi-metal composite pipe, the two bending force loading mechanisms are symmetrically arranged on the left side and the right side of the twisting force loading mechanism, and the bending force loading mechanisms are arranged between the two axial force loading mechanisms. By adopting the bi-metal composite pipe bending test device, the bending force, the axial force and the twisting force can be loaded onto the bi-metal composite pipe, the single-stress bending test can be carried out, the arbitrary combined stress bending test also can be realized, and the situation in the bi-metal composite pipe can be monitored.

Description

A kind of composite bimetal pipe bend test device
Technical field
The present invention relates to a kind of bend test device, especially relate to a kind of composite bimetal pipe bend test device.
Background technology
In recent years, due to high pressure resistant, corrosion-resistant etc. the excellent usability of composite bimetal pipe, composite bimetal pipe was widely used in oil, chemical industry.Due to the cost performance that it is superior, composite bimetal pipe has been widely used in the oil and gas exploitation environment of land, and when pipeline laying, the corresponding pipe fitting of adapted, pipe bending is less or do not need to bend, and therefore composite bimetal pipe is better at land oil and gas industry effect.Along with marine oil gas extraction, composite bimetal pipe also starts to be applied in marine oil natural gas extraction environment, but composite bimetal pipe is applied in marine oil natural gas extraction environment, must meet certain bending property.Due to the construction environment that ocean is special, be different from land construction environment, when pipeline is laid, need to bend, and sometimes require that pipeline is in elastic bending state.And composite bimetal pipe is due to its special structure, it may occur that when bending base lining is separated, and the phenomenons such as bushing pipe is wrinkling, this will affect the usability of composite bimetal pipe.So in the urgent need to developing a kind of test unit to composite bimetal pipe degree of crook and state, can be detected the maximum flexion of composite bimetal pipe in engineer applied and state by this test unit, determine the minimum bending radius of composite bimetal pipe, can to ensure under this degree of crook the base tube of composite bimetal pipe there will not be with bushing pipe be separated, wrinkling.
Application number is 201310240542.1, name is called that the Chinese patent of " full size metal complex pipe four-point bending test device " discloses a kind of metal composite pipe test unit, and it forms primarily of base, two load support posts, tested metal composite pipe clip, two load cylinders, sensor, foil gauge, strainmeters.There is following shortcoming in this test unit: (1) can only simulate metal composite pipe bending loading upwards, namely the unidirectional bending loading of metal composite pipe can only be simulated, metal composite pipe above-below direction alternating bending CYCLIC LOADING can not be simulated, therefore, this test unit cannot draw under the effect of alternating bending CYCLIC LOADING, the bending resistance of metal composite pipe; (2) when bending, metal composite pipe two ends can not load axial force and distortion power, but under the working environment of reality, usually simultaneously with two ends axial force or distortion power when metal composite pipe bends, therefore, the test findings of this test unit cannot reflect the bending resistance of metal composite pipe really; (3) when test is carried out, this test unit can only gather the strain variation situation of complex pipe outer wall, the situation of change of monitoring complex pipe corrosion-resistant alloy layer that can not be real-time, therefore, the integrality of metal composite pipe inner lining corrosion resisting alloy layer when this test unit cannot detect bending, cannot draw the inner lining corrosion resisting alloy layer bending resistance of metal composite pipe.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of composite bimetal pipe bend test device is provided, simple, the reasonable in design and convenient operation of its structure, can realize the upper and lower bending force loading of composite bimetal pipe, axial force loads and distortion power loads, can single stressed bending test, also can the stressed bending test of combination in any, the situation of change of composite bimetal pipe inside can be monitored in real time.
For achieving the above object, the technical solution used in the present invention is: a kind of composite bimetal pipe bend test device, it is characterized in that: comprise base, described base is provided with the bending force load maintainer to composite bimetal pipe load bending power to be tested, the axial force load maintainer of axial force is loaded to composite bimetal pipe to be tested and composite bimetal pipe to be tested is loaded to the distortion power load maintainer of distortion power, the outer wall of described composite bimetal pipe to be tested is pasted with the foil gauge for detecting composite bimetal pipe dependent variable to be tested, be provided with for taking the diastrophic camera of composite bimetal pipe to be tested in described composite bimetal pipe to be tested, described composite bimetal pipe to be tested is positioned at the top of base, described distortion power load maintainer is arranged on the middle part of composite bimetal pipe to be tested, the quantity of described bending force load maintainer and axial force load maintainer is two, two described axial force load maintainers are symmetricly set on the two ends of composite bimetal pipe to be tested, two described bending force load maintainers are symmetricly set on the left and right sides of described distortion power load maintainer, described bending force load maintainer is arranged between two described axial force load maintainers.
Above-mentioned a kind of composite bimetal pipe bend test device, it is characterized in that: described axial force load maintainer comprises axial force load cylinder, supporting seat, power shifter lever, power loads axle and the first hydraulic pressure transducer, the piston rod outer end of described axial force load cylinder and the lower end of power shifter lever hinged, on the cylinder barrel that described first hydraulic pressure transducer is arranged on axial force load cylinder and for measuring the oil pressure in described cylinder barrel, described power shifter lever and supporting seat hinged, described power loads axle is rotatably installed in power shifter lever upper end by bearing, described power loads axle and is fixedly connected with composite bimetal pipe to be tested, cylinder barrel and the supporting seat of described axial force load cylinder are all fixed on base.
Above-mentioned a kind of composite bimetal pipe bend test device, is characterized in that: described power loads the connected mode of axle and composite bimetal pipe to be tested for welding.
Above-mentioned a kind of composite bimetal pipe bend test device, it is characterized in that: described bending force load maintainer comprises bending force load cylinder, complex pipe clip, second hydraulic pressure transducer and displacement transducer, on the cylinder barrel that described second hydraulic pressure transducer is arranged on bending force load cylinder and for measuring the oil pressure in described cylinder barrel, institute's displacement sensors to be arranged on bending force load cylinder and for the displacement of the piston rod of measuring bending force load cylinder, described complex pipe clip is arranged on the piston rod outer end of bending force load cylinder, described complex pipe clip comprises the upper clip and lower clamping piece that are oppositely arranged, described upper clip and lower clamping piece are bolted to connection, the piston rod outer end of described lower clamping piece and bending force load cylinder is hinged, the space that described composite bimetal pipe to be tested is formed through upper clip and lower clamping piece, the cylinder barrel of described bending force load cylinder is fixed on base.
Above-mentioned a kind of composite bimetal pipe bend test device, is characterized in that: the shape of cross section of described upper clip and lower clamping piece is semicircle, the equal and opposite in direction of described upper clip and lower clamping piece.
Above-mentioned a kind of composite bimetal pipe bend test device, it is characterized in that: described distortion power load maintainer comprises front distortion power load cylinder, rear distortion power load cylinder, power transition arm, 3rd hydraulic pressure transducer and the 4th hydraulic pressure transducer, the front end of described power transition arm and the piston rod end of front distortion power load cylinder hinged, the rear end of described power transition arm and the piston rod end of rear distortion power load cylinder hinged, on the cylinder barrel that described 3rd hydraulic pressure transducer is arranged on front distortion power load cylinder and for measuring the oil pressure in described cylinder barrel, on the cylinder barrel that described 4th hydraulic pressure transducer is arranged on rear distortion power load cylinder and for measuring the oil pressure in described cylinder barrel, described power transition arm is fixedly connected with composite bimetal pipe to be tested, the cylinder barrel of described front distortion power load cylinder and rear distortion power load cylinder is all hinged with base.
Above-mentioned a kind of composite bimetal pipe bend test device, is characterized in that: the connected mode of described power transition arm and composite bimetal pipe to be tested is for welding.
Above-mentioned a kind of composite bimetal pipe bend test device, it is characterized in that: described foil gauge is arranged on the middle part of composite bimetal pipe to be tested, described foil gauge comprises axial strain sheet and hoop strain sheet, described axial strain sheet is installed along the axis of composite bimetal pipe to be tested, and described hoop strain sheet is installed along the hoop of composite bimetal pipe to be tested.
Above-mentioned a kind of composite bimetal pipe bend test device, it is characterized in that: described base has multiple adjustment hole along its length, multiple adjustment hole is evenly laid.
Above-mentioned a kind of composite bimetal pipe bend test device, is characterized in that: be also provided with the sliding machine that can slide along its inwall in described composite bimetal pipe to be tested, described camera is arranged on sliding machine.
The present invention compared with prior art has the following advantages:
1, simple, the reasonable in design and convenient operation of structure of the present invention.
2, the present invention is realized composite bimetal pipe upper and lower iterative cycles load bending power by bending force load maintainer, is realized loading axial force to composite bimetal pipe and realizing loading distortion power to composite bimetal pipe by distortion power load maintainer by axial force load maintainer, and bending force load maintainer, axial force load maintainer and distortion power load maintainer can be used alone, also combination in any can use, carry out the stressed bending test of composite bimetal pipe.
3, the present invention is by being arranged on the camera in composite bimetal pipe to be tested, the flexural deformation situation of captured in real-time composite bimetal pipe inside to be tested, with the situation of change of real-time monitoring complex pipe corrosion-resistant alloy layer in carrying out in test.
4, the present invention by having multiple adjustment hole along its length on base, and multiple adjustment hole is evenly laid, the distance between two axial force load maintainers is regulated like this by adjustment hole, and the distance between adjustment two bending force load maintainers, to realize the bending test of the composite bimetal pipe to be tested to various length.
5, usable range of the present invention is wide, not only can with being effectively applicable in the bending test of composite bimetal pipe, also can be used in the bending test to other tubing or section bar.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is using state figure of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A place enlarged drawing of Fig. 2.
Fig. 4 is the installation relation schematic diagram of axial force load maintainer of the present invention and composite bimetal pipe to be tested.
Fig. 5 is the using state figure of axial force load maintainer of the present invention.
Fig. 6 is the installation relation schematic diagram of bending force load maintainer of the present invention and composite bimetal pipe to be tested.
Fig. 7 is the installation relation schematic diagram of distortion power load maintainer of the present invention and composite bimetal pipe to be tested.
Fig. 8 is the using state figure of distortion power load maintainer of the present invention.
Fig. 9 is the constitutional diagram that the present invention is bent upwards composite bimetal pipe to be tested.
Figure 10 is the constitutional diagram that the present invention is bent downwardly composite bimetal pipe to be tested.
Description of reference numerals:
1-base; 2-supporting seat; 3-axial force load cylinder;
4-the second hydraulic pressure transducer; 5-the first hydraulic pressure transducer; 6-the three hydraulic pressure transducer;
7-power shifter lever; 8-power loads axle; 9-the four hydraulic pressure transducer;
10-displacement transducer; 11-foil gauge; 11-1-axial strain sheet;
11-2-hoop strain sheet; 12-power transition arm; 13-1-front distortion power load cylinder;
13-2-rear distortion power load cylinder; 14-complex pipe clip; 14-1-upper clip;
14-2-lower clamping piece; 14-3-bolt; 15-bending force load cylinder;
16-adjustment hole; 17-camera; 18-sliding machine;
19-composite bimetal pipe to be tested.
Embodiment
As depicted in figs. 1 and 2, the present invention includes base 1, described base 1 is provided with the bending force load maintainer to composite bimetal pipe 19 load bending power to be tested, the axial force load maintainer of axial force is loaded to composite bimetal pipe 19 to be tested and composite bimetal pipe 19 to be tested is loaded to the distortion power load maintainer of distortion power, the outer wall of described composite bimetal pipe to be tested 19 is pasted with the foil gauge 11 for detecting composite bimetal pipe 19 dependent variable to be tested, be provided with for taking the diastrophic camera 17 of composite bimetal pipe 19 to be tested in described composite bimetal pipe to be tested 19, described composite bimetal pipe to be tested 19 is positioned at the top of base 1, described distortion power load maintainer is arranged on the middle part of composite bimetal pipe 19 to be tested, the quantity of described bending force load maintainer and axial force load maintainer is two, two described axial force load maintainers are symmetricly set on the two ends of composite bimetal pipe 19 to be tested, two described bending force load maintainers are symmetricly set on the left and right sides of described distortion power load maintainer, described bending force load maintainer is arranged between two described axial force load maintainers.
As shown in Figure 4 and Figure 5, described axial force load maintainer comprises axial force load cylinder 3, supporting seat 2, power shifter lever 7, power loads axle 8 and the first hydraulic pressure transducer 5, the piston rod outer end of described axial force load cylinder 3 and the lower end of power shifter lever 7 hinged, on the cylinder barrel that described first hydraulic pressure transducer 5 is arranged on axial force load cylinder 3 and for measuring the oil pressure in described cylinder barrel, described power shifter lever 7 is hinged with supporting seat 2, described power loads axle 8 is rotatably installed in power shifter lever 7 upper end by bearing, described power loads axle 8 and is fixedly connected with composite bimetal pipe 19 to be tested, cylinder barrel and the supporting seat 2 of described axial force load cylinder 3 are all fixed on base 1.In the present embodiment, described power loads the connected mode of axle 8 and composite bimetal pipe 19 to be tested for welding.During work, axial force load cylinder 3 loads axle 8 by power shifter lever 7 and power, loads axial force to composite bimetal pipe 19 to be tested.
As indicated with 6, described bending force load maintainer comprises bending force load cylinder 15, complex pipe clip 14, second hydraulic pressure transducer 4 and displacement transducer 10, on the cylinder barrel that described second hydraulic pressure transducer 4 is arranged on bending force load cylinder 15 and for measuring the oil pressure in described cylinder barrel, institute's displacement sensors 10 to be arranged on bending force load cylinder 15 and for the displacement of the piston rod of measuring bending force load cylinder 15, described complex pipe clip 14 is arranged on the piston rod outer end of bending force load cylinder 15, described complex pipe clip 14 comprises the upper clip 14-1 and lower clamping piece 14-2 that are oppositely arranged, described upper clip 14-1 is fixedly connected with by bolt 14-3 with lower clamping piece 14-2, the piston rod outer end of described lower clamping piece 14-2 and bending force load cylinder 15 is hinged, the space that described composite bimetal pipe to be tested 19 is formed through upper clip 14-1 and lower clamping piece 14-2, the cylinder barrel of described bending force load cylinder 15 is fixed on base 1.In the present embodiment, the shape of cross section of described upper clip 14-1 and lower clamping piece 14-2 is semicircle, the equal and opposite in direction of described upper clip 14-1 and lower clamping piece 14-2.The model that displacement transducer 10 adopts Jinan scientific & technical corporation of Case to produce is the stay wire displacement sensor of KS30 series.Complex pipe clip 14 forms primarily of upper clip 14-1 and lower clamping piece 14-2, by bolt 14-3, composite bimetal pipe 19 dress to be tested is clipped in the middle, the piston rod outer end of lower clamping piece 14-2 and bending force load cylinder 15 is hinged, and this sampling composite tube clip 14 can swing.During work, bending force load cylinder 15 moves up and down, and drives composite bimetal pipe about 19 to be tested alternating bending by complex pipe clip 14.
As shown in Figure 7 and Figure 8, described distortion power load maintainer comprises front distortion power load cylinder 13-1, rear distortion power load cylinder 13-2, power transition arm 12, 3rd hydraulic pressure transducer 6 and the 4th hydraulic pressure transducer 9, the front end of described power transition arm 12 and the piston rod end of front distortion power load cylinder 13-1 hinged, the rear end of described power transition arm 12 and the piston rod end of rear distortion power load cylinder 13-2 hinged, on the cylinder barrel that described 3rd hydraulic pressure transducer 6 is arranged on front distortion power load cylinder 13-1 and for measuring the oil pressure in described cylinder barrel, on the cylinder barrel that described 4th hydraulic pressure transducer 9 is arranged on rear distortion power load cylinder 13-2 and for measuring the oil pressure in described cylinder barrel, described power transition arm 12 is fixedly connected with composite bimetal pipe 19 to be tested, the cylinder barrel of described front distortion power load cylinder 13-1 and rear distortion power load cylinder 13-2 is all hinged with base 1.In the present embodiment, the connected mode of described power transition arm 12 and composite bimetal pipe 19 to be tested is for welding.During work, front distortion power load cylinder 13-1 and rear distortion power load cylinder 13-2, by power transition arm 12, loads distortion power to composite bimetal pipe 19 to be tested.
As shown in Figure 3, described foil gauge 11 is arranged on the middle part of composite bimetal pipe 19 to be tested, described foil gauge 11 comprises axial strain sheet 11-1 and hoop strain sheet 11-2, described axial strain sheet 11-1 installs along the axis of composite bimetal pipe 19 to be tested, and described hoop strain sheet 11-2 installs along the hoop of composite bimetal pipe 19 to be tested.In the present embodiment, the quantity of foil gauge 11 is six groups, and six groups of foil gauges 11 are spaced apart.
As shown in Figure 2, described base 1 has multiple adjustment hole 16 along its length, multiple adjustment hole 16 is evenly laid, the distance between two axial force load maintainers can be regulated by adjustment hole 16, and the distance between adjustment two bending force load maintainers, to realize the bending test of the composite bimetal pipe to be tested 19 to various length.
As shown in Figure 1, be also provided with the sliding machine 18 that can slide along its inwall in described composite bimetal pipe 19 to be tested, described camera 17 is arranged on sliding machine 18.
Principle of work of the present invention is: carry out load test according to testing the front load deflection step arranged, and during each bending loading, according to testing requirements, can all load certain axial force in advance to the two ends of composite bimetal pipe 19 to be tested.Axial force load cylinder 3 is by piston masthead or draw in row loading force, and by power shifter lever 7, acting force is loaded on the axis of composite bimetal pipe 19 to be tested, the first hydraulic pressure transducer 5 that the cylinder body of composite bimetal pipe 19 to be tested is installed can detect the pressure in cylinder barrel, by carrying out being multiplied the loading acting force calculating and can obtain axial force load cylinder 3 with the load-carrying area of cylinder barrel, loading acting force and being multiplied by the axis loading acting force that power shifter lever 7 just can obtain composite bimetal pipe 19 to be tested.Also can experimentally requirement, can certain distortion power be loaded in advance composite bimetal pipe 19 to be tested, front distortion power load cylinder 13-1 and rear distortion power load cylinder 13-2 is by piston masthead or draw in row loading force, and by power transition arm 12, moment of torsion is loaded on composite bimetal pipe 19 to be tested, the 3rd hydraulic pressure transducer 6 that the cylinder barrel of front distortion power load cylinder 13-1 is installed can detect the pressure in cylinder barrel, the 4th hydraulic pressure transducer 9 that the cylinder barrel of distortion power load cylinder 13-2 is installed can detect the pressure in cylinder barrel, by carrying out being multiplied the loading acting force calculating and can obtain front distortion power load cylinder 13-1 and rear distortion power load cylinder 13-2 with the load-carrying area of cylinder barrel, front distortion power load cylinder 13-1 and rear distortion power load cylinder 13-2 is multiplied by the distortion loading acting force that corresponding power transition arm just can obtain composite bimetal pipe 19 to be tested respectively.During each loading, the piston rod of bending force load cylinder 15 is by moving up or down, thus drive composite bimetal pipe 19 to be tested to be bent upwards or to be bent downwardly (as shown in Figure 9 and Figure 10), the second hydraulic pressure transducer 4 that the cylinder barrel of bending force load cylinder 15 is installed can detect the pressure in cylinder barrel, can obtain bending force load cylinder 15 loading acting force up or down by carrying out being multiplied calculating with the load-carrying area of cylinder barrel.Meanwhile, this test unit can detect the dependent variable of composite bimetal pipe 19 to be tested by foil gauge 11, observes strain variation situation when composite bimetal pipe 19 to be tested bends on the one hand, utilizes complex pipe deformation formula R=D/2 ε on the other hand in flat axlecalculate the minimum bending radius R of composite bimetal pipe, the unit of R is mm; Wherein, D is the nominal outside diameter of composite bimetal pipe, and the unit of D is mm, ε in flat axlethe axial mean strain amount of central point for composite bimetal pipe.In addition, this test unit can take the flexural deformation of composite bimetal pipe 19 inside to be tested by camera 17, namely when the multiple composite bimetal pipe 19 to be tested of observation bends, whether inner lining corrosion resisting alloy layer is wrinkling lost efficacy with bulge, often walking under load deflection, by radius of curvature and the situation of change observing inside surface, just can obtain in the complete situation of guarantee composite bimetal pipe, the maximum flexion of composite bimetal pipe and minimum bending radius, and then the bending property evaluating composite bimetal pipe.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solution of the present invention.

Claims (10)

1. a composite bimetal pipe bend test device, it is characterized in that: comprise base (1), described base (1) is provided with the bending force load maintainer to composite bimetal pipe to be tested (19) load bending power, the axial force load maintainer of axial force is loaded to composite bimetal pipe to be tested (19) and composite bimetal pipe to be tested (19) is loaded to the distortion power load maintainer of distortion power, the outer wall of described composite bimetal pipe to be tested (19) is pasted with the foil gauge (11) for detecting composite bimetal pipe to be tested (19) dependent variable, be provided with in described composite bimetal pipe to be tested (19) for taking composite bimetal pipe to be tested (19) diastrophic camera (17), described composite bimetal pipe to be tested (19) is positioned at the top of base (1), described distortion power load maintainer is arranged on the middle part of composite bimetal pipe to be tested (19), the quantity of described bending force load maintainer and axial force load maintainer is two, two described axial force load maintainers are symmetricly set on the two ends of composite bimetal pipe to be tested (19), two described bending force load maintainers are symmetricly set on the left and right sides of described distortion power load maintainer, described bending force load maintainer is arranged between two described axial force load maintainers.
2. according to a kind of composite bimetal pipe bend test device according to claim 1, it is characterized in that: described axial force load maintainer comprises axial force load cylinder (3), supporting seat (2), power shifter lever (7), power loads axle (8) and the first hydraulic pressure transducer (5), the piston rod outer end of described axial force load cylinder (3) and the lower end of power shifter lever (7) hinged, on the cylinder barrel that described first hydraulic pressure transducer (5) is arranged on axial force load cylinder (3) and for measuring the oil pressure in described cylinder barrel, described power shifter lever (7) is hinged with supporting seat (2), described power loads axle (8) is rotatably installed in power shifter lever (7) upper end by bearing, described power loads axle (8) and is fixedly connected with composite bimetal pipe to be tested (19), cylinder barrel and the supporting seat (2) of described axial force load cylinder (3) are all fixed on base (1).
3. according to a kind of composite bimetal pipe bend test device according to claim 2, it is characterized in that: described power loads the connected mode of axle (8) and composite bimetal pipe to be tested (19) for welding.
4. according to a kind of composite bimetal pipe bend test device according to claim 1, it is characterized in that: described bending force load maintainer comprises bending force load cylinder (15), complex pipe clip (14), second hydraulic pressure transducer (4) and displacement transducer (10), on the cylinder barrel that described second hydraulic pressure transducer (4) is arranged on bending force load cylinder (15) and for measuring the oil pressure in described cylinder barrel, it is upper and for the displacement of the piston rod of measuring bending force load cylinder (15) that institute's displacement sensors (10) is arranged on bending force load cylinder (15), described complex pipe clip (14) is arranged on the piston rod outer end of bending force load cylinder (15), described complex pipe clip (14) comprises the upper clip (14-1) and lower clamping piece (14-2) that are oppositely arranged, described upper clip (14-1) is fixedly connected with by bolt (14-3) with lower clamping piece (14-2), described lower clamping piece (14-2) is hinged with the piston rod outer end of bending force load cylinder (15), the space that described composite bimetal pipe to be tested (19) is formed through upper clip (14-1) and lower clamping piece (14-2), the cylinder barrel of described bending force load cylinder (15) is fixed on base (1).
5. according to a kind of composite bimetal pipe bend test device according to claim 4, it is characterized in that: the shape of cross section of described upper clip (14-1) and lower clamping piece (14-2) is semicircle, the equal and opposite in direction of described upper clip (14-1) and lower clamping piece (14-2).
6. according to a kind of composite bimetal pipe bend test device according to claim 1, it is characterized in that: described distortion power load maintainer comprises front distortion power load cylinder (13-1), rear distortion power load cylinder (13-2), power transition arm (12), 3rd hydraulic pressure transducer (6) and the 4th hydraulic pressure transducer (9), the front end of described power transition arm (12) and the piston rod end of front distortion power load cylinder (13-1) hinged, the rear end of described power transition arm (12) and the piston rod end of rear distortion power load cylinder (13-2) hinged, on the cylinder barrel that described 3rd hydraulic pressure transducer (6) is arranged on front distortion power load cylinder (13-1) and for measuring the oil pressure in described cylinder barrel, on the cylinder barrel that described 4th hydraulic pressure transducer (9) is arranged on rear distortion power load cylinder (13-2) and for measuring the oil pressure in described cylinder barrel, described power transition arm (12) is fixedly connected with composite bimetal pipe to be tested (19), the cylinder barrel of described front distortion power load cylinder (13-1) and rear distortion power load cylinder (13-2) is all hinged with base (1).
7. according to a kind of composite bimetal pipe bend test device according to claim 6, it is characterized in that: the connected mode of described power transition arm (12) and composite bimetal pipe to be tested (19) is for welding.
8. according to a kind of composite bimetal pipe bend test device according to claim 1, it is characterized in that: described foil gauge (11) is arranged on the middle part of composite bimetal pipe to be tested (19), described foil gauge (11) comprises axial strain sheet (11-1) and hoop strain sheet (11-2), described axial strain sheet (11-1) is installed along the axis of composite bimetal pipe to be tested (19), and described hoop strain sheet (11-2) is installed along the hoop of composite bimetal pipe to be tested (19).
9. according to a kind of composite bimetal pipe bend test device according to claim 1, it is characterized in that: described base (1) has along its length multiple adjustment hole (16), multiple adjustment hole (16) is evenly laid.
10. according to a kind of composite bimetal pipe bend test device according to claim 1, it is characterized in that: be also provided with the sliding machine (18) that can slide along its inwall in described composite bimetal pipe to be tested (19), described camera (17) is arranged on sliding machine (18).
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* Cited by examiner, † Cited by third party
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CN107167376A (en) * 2017-04-18 2017-09-15 天津大学 Ocean engineering corrosive pipeline experimental facilities
CN107478391A (en) * 2017-07-18 2017-12-15 宝鸡石油机械有限责任公司 A kind of subsea wellhead equipment bends internal pressure combined loading test method
CN109342047A (en) * 2018-12-18 2019-02-15 江苏金风科技有限公司 Vane stability test method and test fixture
CN109342177A (en) * 2018-11-20 2019-02-15 大连理工大学 A kind of full-scale pipeline deep-sea complexity ocean environmental loads combination loading pilot system
CN109374428A (en) * 2018-08-27 2019-02-22 南方科技大学 A kind of flexible pipe cable Apparatus for Bending at low-temp
CN110672428A (en) * 2019-10-24 2020-01-10 成都西交轨道交通技术服务有限公司 Synthetic sleeper bending test device and monitoring system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419289A (en) * 2011-12-21 2012-04-18 西安三维应力工程技术有限公司 Full-size complex load mechanical testing machine of petroleum pipe
CN103308397A (en) * 2013-06-18 2013-09-18 中国海洋石油总公司 Four-point bending test device for full-size metal composite tube
JP2013217829A (en) * 2012-04-11 2013-10-24 Nippon Steel & Sumitomo Metal Bending test device and bending test method using the same
CN203688373U (en) * 2013-12-02 2014-07-02 北京乐冶液压气动设备技术有限公司 Tension compression and torsional vibration fatigue test device
CN203772652U (en) * 2014-03-31 2014-08-13 中国商用飞机有限责任公司 Ultimate bending test system for flexible joint of airplane fuel pipeline
CN203908883U (en) * 2014-04-25 2014-10-29 西安三维应力工程技术有限公司 Bending fatigue test device for oil casing under combined load
CN203965260U (en) * 2014-06-25 2014-11-26 中国海洋石油总公司 The bending stiffness of flexible pipe and torsion rigidity measurer
CN104406862A (en) * 2014-11-25 2015-03-11 华南理工大学 Full-size four-point bending testing device for natural gas pipe as well as testing method
CN104535433A (en) * 2014-12-31 2015-04-22 中国石油天然气集团公司 Full-size pipeline fatigue test operating platform
CN204556408U (en) * 2015-05-08 2015-08-12 西安向阳航天材料股份有限公司 A kind of composite bimetal pipe bend test device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102419289A (en) * 2011-12-21 2012-04-18 西安三维应力工程技术有限公司 Full-size complex load mechanical testing machine of petroleum pipe
JP2013217829A (en) * 2012-04-11 2013-10-24 Nippon Steel & Sumitomo Metal Bending test device and bending test method using the same
CN103308397A (en) * 2013-06-18 2013-09-18 中国海洋石油总公司 Four-point bending test device for full-size metal composite tube
CN203688373U (en) * 2013-12-02 2014-07-02 北京乐冶液压气动设备技术有限公司 Tension compression and torsional vibration fatigue test device
CN203772652U (en) * 2014-03-31 2014-08-13 中国商用飞机有限责任公司 Ultimate bending test system for flexible joint of airplane fuel pipeline
CN203908883U (en) * 2014-04-25 2014-10-29 西安三维应力工程技术有限公司 Bending fatigue test device for oil casing under combined load
CN203965260U (en) * 2014-06-25 2014-11-26 中国海洋石油总公司 The bending stiffness of flexible pipe and torsion rigidity measurer
CN104406862A (en) * 2014-11-25 2015-03-11 华南理工大学 Full-size four-point bending testing device for natural gas pipe as well as testing method
CN104535433A (en) * 2014-12-31 2015-04-22 中国石油天然气集团公司 Full-size pipeline fatigue test operating platform
CN204556408U (en) * 2015-05-08 2015-08-12 西安向阳航天材料股份有限公司 A kind of composite bimetal pipe bend test device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李华军 等: "基于四点弯曲法的机械式复合管弯曲性能研究", 《焊管》 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547561A (en) * 2016-01-27 2016-05-04 江苏电力装备有限公司 Riser clamp pressure direction testing device and method
CN105547561B (en) * 2016-01-27 2018-08-03 江苏电力装备有限公司 What riser clamp pressed to test device and riser clamp presses to test method
CN107167376A (en) * 2017-04-18 2017-09-15 天津大学 Ocean engineering corrosive pipeline experimental facilities
CN107478391A (en) * 2017-07-18 2017-12-15 宝鸡石油机械有限责任公司 A kind of subsea wellhead equipment bends internal pressure combined loading test method
CN107478391B (en) * 2017-07-18 2019-04-19 宝鸡石油机械有限责任公司 A kind of subsea wellhead equipment bending internal pressure combined loading test method
CN109374428A (en) * 2018-08-27 2019-02-22 南方科技大学 A kind of flexible pipe cable Apparatus for Bending at low-temp
CN109342177A (en) * 2018-11-20 2019-02-15 大连理工大学 A kind of full-scale pipeline deep-sea complexity ocean environmental loads combination loading pilot system
CN109342177B (en) * 2018-11-20 2021-02-23 大连理工大学 Full-size pipeline deep sea complex marine environment load combined loading test system
CN109342047A (en) * 2018-12-18 2019-02-15 江苏金风科技有限公司 Vane stability test method and test fixture
CN110672428A (en) * 2019-10-24 2020-01-10 成都西交轨道交通技术服务有限公司 Synthetic sleeper bending test device and monitoring system

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