CN103207124B - The system and method for test tubing anti-wear performance - Google Patents
The system and method for test tubing anti-wear performance Download PDFInfo
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- CN103207124B CN103207124B CN201310071449.2A CN201310071449A CN103207124B CN 103207124 B CN103207124 B CN 103207124B CN 201310071449 A CN201310071449 A CN 201310071449A CN 103207124 B CN103207124 B CN 103207124B
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Abstract
The invention discloses a kind of system of testing tubing anti-wear performance, comprise: drive motor, toggle, connecting wedge, at least one angle sheave, at least one support bar, at least two spring pressure exerting arrangements, at least one friction test block and fixed mount, described drive motor is connected with described toggle, described toggle is connected with described support bar by described connecting wedge, described angle sheave is fixing on the table, and be flexibly connected with described toggle, described friction test block is fixed on below support bar, described spring pressure exerting arrangement one end is connected with described fixed mount, the other end is flexibly connected with described support bar.The invention also discloses a kind of method using said system to test tubing anti-wear performance.A kind of system and method testing tubing anti-wear performance provided by the invention, method of testing is reasonable in design, and test unit structure is simple, has easy to operate, the feature of quicklook, effectively can improve testing efficiency.
Description
Technical field
The present invention relates to pipe performance technical field of measurement and test, particularly a kind of system and method testing tubing anti-wear performance.
Background technology
Wearing and tearing are three one of the main reasons of product failure.According to incompletely statistics, 1/3 ~ 1/2 of the energy friction, wearing and tearing are consumed in.Find vulnerable part failure analysis, with regard to material itself, the principal element affecting wear extent size is tissue, hardness and toughness.In order to reduce the massive losses wearing and tearing and cause, numerous scientific workers make great efforts tackling key problem, put forth effort on existing rationalization and high rigidity, have again the development of high-toughness material, develop a lot of high-abrasive material of good performance, as the various wearing composite material such as alloy abrasion resistant steel, alloy white cast iron and ceramic-lined composite steel tube, cast stone liner complex pipe steel pipe, rubber liner composite steel tube.The use of these high-abrasive materials, for reduction attrition, improves serviceable life, reduces energy resource consumption and has opened up wide prospect.
But for the evaluation of high-abrasive material especially wear-resistant tubing wear resistance, great majority go simulation to characterize with pat at present.As the evaluation for ultrahigh molecular weight polyethylene tubing abrasion resistance properties, QB/T2668-2004 Appendix B proposes to adopt mortar rate of wear test method, its principle is that the sample of certain mass and shape is put into the container that mortar is housed, by certain rotational speed sample, sample and mortar produce relative motion and wear and tear.After certain hour, measure sample mass loss and carry out characterization sample anti-wear performance.The method requires higher for the preparation of pat, and in rotary course, sample very easily landing, has a strong impact on the degree of accuracy of test.In addition, tubing only has inwall to produce wearing and tearing when pumped (conveying) medium, and this test method is worn and torn to each surface of sample, can not simulate the Wear resistances of conveying tubing completely.
SY/T0065-2000 adopts drum process testing conduit anticorrosive coat anti-wear performance, and ultimate principle is the swing roller adopting horizontal positioned, and cylinder is built with wearability slurry and test specimen, and test specimen two ends are stretched out outside cylinder, and insulate with cylinder.During drum rotating, the slurry in cylinder and test specimen produce relative motion, thus make pipeline anticorrosion coating produce wearing and tearing, judge anticorrosive coat relative wear resistance by the resistance value between periodic measurement test specimen and cylinder.The method is less demanding to sample, and simulates pipe material inner wall abrasional behavior to a certain extent, but complicated operation, degree of accuracy are low.Meanwhile, the method only increases the tubing degree of wear by the extended testing system time, and test period is significantly extended.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of system and method that can improve the test tubing anti-wear performance of abrasion test efficiency.
For solving the problems of the technologies described above, one aspect of the present invention, provides a kind of system of testing tubing anti-wear performance, it is characterized in that, comprising:
Drive motor, toggle, connecting wedge, at least one angle sheave, at least one support bar, at least two spring pressure exerting arrangements, at least one friction test block and fixed mounts;
Described drive motor is connected with described toggle, moves reciprocatingly for driving described toggle;
Described toggle is connected with described support bar by described connecting wedge, moves reciprocatingly for driving described support bar;
Described support bar moves reciprocatingly for driving described friction test block;
Described angle sheave is fixing on the table by holder, and is flexibly connected with described toggle, drives support bar to do straight reciprocating motion for controlling toggle;
Described friction test block is fixed on below support bar, with fixing test section inside surface close contact on the table, for rubbing to test section inside surface;
Described spring pressure exerting arrangement one end is connected with described fixed mount, the other end is flexibly connected with described support bar, described spring pressure exerting arrangement, for adjusting the friction force between friction test block and test section, makes test section uniform stressed wear and tear, effectively prevents the generation of eccentric wear phenomenon.
Further, the system of described test tubing anti-wear performance, described spring pressure exerting arrangement comprises:
Back shaft, spring, nut, roller and U-shaped frame;
Described back shaft is plugged on the crossbeam of described fixed mount, and upper end and described nut are spirally connected, and described back shaft is by the upper and lower motion of the described nut of adjustment;
Described spring housing is connected on described back shaft, and bottom is fixedly connected with described back shaft bottom;
Described U-shaped frame is fixedly connected with described back shaft bottom, and described U-shaped frame is flexibly connected with described roller;
Described roller is flexibly connected with described support bar.
Further, the system of described test tubing anti-wear performance, also comprises:
At least one cooling device, described cooling device is arranged on test section front, and described cooling device is provided with the liquid coolant mouth of pipe, described liquid coolant mouth of pipe alignment test pipeline section.
Further, the system of described test tubing anti-wear performance, also comprises:
At least one V-block and at least one pressing plate, described V-block is for placing test section, described pressing plate is for compressing test section, make test section fixing on the table, the quantity of described V-block, pressing plate is equal with the quantity of experiment pipeline section, and the quantity of described test section is equal with the quantity of support bar and cooling device.
Further, the size of described friction test block, shape and material adjust according to test specimen, to realize the simulation to the wear-resisting situation of various sample under different working condition.
Another aspect of the present invention, provides a kind of method adopting the system testing tubing anti-wear performance of above-mentioned test tubing anti-wear performance, it is characterized in that, comprising:
The internal diameter of test section, thickness and weight are measured;
Friction test block is fixed on support bar;
Test section is socketed in one end that support bar is provided with friction test block, and with the high and low position of V-block Adjustment Tests pipeline section, after test section inside surface and friction test block curved surface are fitted completely, adopts pressing plate to compress test section;
According to pressure set points adjustment spring pressure exerting arrangement, thus the friction force between friction test block and test section is made to reach setting value;
Setting motor speed, starts anti-wear performance test;
After test arrives setting-up time, stop motor driver and cooling device, test section is taken out, cleaning, drying is weighed, and measure pipeline section fray wall thickness, the mass change of run of designing and wall thickness change, observe pipeline section wear morphology simultaneously, the macro morphology change before and after the wearing and tearing of comparative analysis inside surface.
Further, when carrying out anti-wear performance test, observe the abrasion condition of friction test block and test section, when friction test block both sides be milled to be less than or equal to 1mm time, friction test block is changed.
Further, the size of described friction test block, shape and material adjust according to test specimen, to realize the simulation to the wear-resisting situation of various sample under different working condition.
Further, described method, also comprises:
Before the test of beginning anti-wear performance, cooling device is arranged on test section front, makes liquid coolant mouth of pipe alignment test pipeline section, described test section is cooled.
Further, described according to pressure set points adjustment spring pressure exerting arrangement time, according to the contrast relationship of spring displacement and pressure, turn nut and drive back shaft to move up and down, make the displacement of spring reach setting value, thus make the pressure of correspondence reach pressure set points.
A kind of system and method testing tubing anti-wear performance provided by the invention, by adjustment motor speed, add spring pressure exerting arrangement, configuration cooling device etc., realize the control to speed, pressure and temperature in wear test course, effectively improve tubing wear test efficiency, and can when an employing drive motor, adopt one or more sets Wear System, realize testing while one or more pipeline section, while raising the efficiency the saving energy, also ensure that the comparability of test result.
Accompanying drawing explanation
The structural representation of the system of the test tubing anti-wear performance that Fig. 1 provides for the embodiment of the present invention one;
Fig. 2 is the structural representation of spring pressure exerting arrangement in structure shown in Fig. 1.
Embodiment
A kind of system of testing tubing anti-wear performance that the embodiment of the present invention provides, comprise: drive motor, toggle, angle sheave, at least one support bar, at least two spring pressure exerting arrangements, at least one cooling device, at least one friction test block, at least one V-block, at least one pressing plate, connecting wedge and fixed mounts.The quantity of V-block, pressing plate is equal with the quantity of experiment pipeline section, and the quantity of test section is equal with the quantity of support bar and cooling device.Wherein, support bar, cooling device, two spring pressure exerting arrangements and a friction test block form a set of Wear System.Drive motor is connected with toggle, moves reciprocatingly for driving toggle; Toggle is connected with support bar by connecting wedge, moves reciprocatingly for driving support bar; Support bar moves reciprocatingly for driving friction test block; Angle sheave is fixing on the table by holder, and is flexibly connected with toggle, drives support bar to do straight reciprocating motion for controlling toggle; Friction test block is fixed on below support bar, with fixing test section inside surface close contact on the table, for rubbing to test section inside surface.Spring pressure exerting arrangement one end is connected with described fixed mount, and the other end is flexibly connected with described support bar, and spring pressure exerting arrangement, for adjusting the friction force between friction test block and test section, makes test section uniform stressed wear and tear, effectively prevents the generation of eccentric wear phenomenon.Fixed mount is fixedly installed on the table.Spring pressure exerting arrangement comprises spring, roller, back shaft, nut and U-shaped frame, and back shaft is plugged on the crossbeam of fixed mount, and upper end and nut are spirally connected, and back shaft is by the upper and lower motion of adjusting nut; Spring housing is connected on back shaft, and bottom is fixedly connected with back shaft bottom; U-shaped frame is fixedly connected with back shaft bottom, and roller is flexibly connected with U-shaped frame; Roller is flexibly connected with support bar.Drive support bar to move up and down the displacement changing spring by adjusting nut, thus change spring pressure exerting arrangement to the force value of support bar, and then change the friction force between friction test block and test section be arranged on support bar.Cooling device comprises ebullator, sebific duct, liquid storage tank, support and cooling spray; Liquid storage tank is connected by sebific duct with ebullator, and is fixed on below worktable; Ebullator is connected by sebific duct with cooling spray, and is fixed on the support of worktable; Cooling spray alignment test pipeline section.After starting ebullator, the liquid coolant in liquid storage tank, by sebific duct and cooling spray, is sprayed at test section friction area, and the groove hole flowed through subsequently on worktable returns liquid storage tank along sebific duct, and then forms closed circuit.
Motor rotating disk on drive motor coordinates with toggle, controls toggle drive support bar to do linear reciprocating motion during rotation by angle sheave.Friction test block is fixed on below reciprocating support bar, with test section inside surface close contact, reaches the effect of abrasion test.Above the support bar of test section both sides, with the addition of spring pressure exerting arrangement, the friction force between friction test block and test section can be increased, and can ensure that tubing uniform stressed weares and teares.Liquid coolant, by between cooling device engaging friction test block and test section, improves abrasion test efficiency while cooling.
The method of the system testing tubing anti-wear performance of employing provided by the invention above-mentioned test tubing anti-wear performance, comprising:
Step S1: the internal diameter of test section, thickness and weight are measured;
Step S2: friction test block is fixed on support bar;
Step S3: test section is socketed in one end that support bar is provided with friction test block, and with the high and low position of V-block Adjustment Tests pipeline section, after test section inside surface and friction test block curved surface are fitted completely, adopt pressing plate to compress test section;
Step S4: according to pressure set points adjustment spring pressure exerting arrangement, thus make the friction force between friction test block and test section reach setting value; During according to pressure set points adjustment spring pressure exerting arrangement, according to the contrast relationship of spring displacement and pressure, turn nut and drive back shaft to move up and down, make the displacement of spring reach setting value, thus make the pressure of correspondence reach pressure set points.
Step S5: setting motor speed, starts anti-wear performance test; Before the test of beginning anti-wear performance, cooling device is arranged on test section front, makes liquid coolant mouth of pipe alignment test pipeline section, test section is cooled.When carrying out anti-wear performance test, observe the abrasion condition of friction test block and test section, when friction test block both sides be milled to be less than or equal to 1mm time, friction test block is changed.
Step S6: the size of friction test block, shape and material adjust according to test specimen, to realize the simulation to the wear-resisting situation of various sample under different working condition.
Step S7: after test arrives setting-up time, stop motor driver and cooling device, test section is taken out, cleaning, drying is weighed, and measure pipeline section fray wall thickness, the mass change of run of designing and wall thickness change, observe pipeline section wear morphology simultaneously, the macro morphology change before and after the wearing and tearing of comparative analysis inside surface.
Carry out test below in conjunction with the system of specific embodiment to test tubing anti-wear performance provided by the invention to different tubing anti-wear performance to be described further.
Embodiment one:
See Fig. 1, Fig. 2, a kind of system of testing tubing anti-wear performance that the embodiment of the present invention provides comprises drive motor 1, toggle 2, angle sheave 3, two Wear System, two V-block (not shown)s, two pressing plate (not shown)s, connecting wedge 11 and fixed mounts 19.Two Wear System comprise: two support bars, 4, four spring pressure exerting arrangements, 5, two cooling devices 6 and two friction test block 7.Wherein the driving rotating disk 1 of drive motor is connected with one end of toggle 2, and the other end of toggle 2 is fixed on connecting wedge 11.Angle sheave 3 is fixing on the table by holder 12.Two support bars 4 are equally spaced to be fixed on connecting wedge 11, and two support bars 4 are socketed with test section 8 respectively.Spring pressure exerting arrangement 5 comprises spring 9, roller 10, back shaft 17, nut and U-shaped frame 18, and four spring pressure exerting arrangements 5 are divided into two groups, two spring pressure exerting arrangements 5 are arranged on test section 8 both sides of a wherein support bar 4, another two spring pressure exerting arrangements 5 are arranged on test section 8 both sides of another root support bar 4, and wherein two cooling devices 6 are separately positioned on test section 8 front be socketed on two support bars 4.Two V-blocks are placed on bottom test section respectively, and pressing plate covers on test section, and both sides are fixedly connected with worktable by bolt.
When adopting the anti-wear performance of the system testing plain carbon steel tubing of above-mentioned test tubing anti-wear performance, concrete steps are as follows:
(1) preparation of samples: intercepted length is the test section of 100mm, and to its outer wall anticorrosion with painting paint; (2) sample is measured: the weight measuring test section with electronic balance (precision 0.1g), with vernier caliper measurement test section wall thickness; (3) friction test block is selected and is installed: select material of sucker rod 20CrMoA as friction test block, and according to test section internal diameter size, processing friction test block lower surface is curved surface, and is installed on support bar; (4) sample is installed: test section is inserted in the support bar with friction test block, and is placed on V-block, adopts pressing plate to compress pipeline section.Upper and lower Correctional tube fragment position, makes its inside surface and friction test block curved surface fit completely; (5) according to spring displacement and pressure contrast relationship, binding tests requirement, before and after Adjustment Tests pipe, the pressure of both sides spring is 20kg; (6) cooling device is added: the liquid coolant mouth of pipe is placed in test section front, and ON cycle pump cools; (7) start test: setting motor speed is 26r/min, start anti-wear performance test; (8) record and observation: (6) observe the abrasion condition of friction test block and test section for every 4 hours, when the curved surface left and right sides planar section of test block is less than 1mm, changes friction test block.Should observe the misalignment of spring, carry out trace adjustment, when ensureing in working order, spring is in constant pressure in good time simultaneously; (9) off-test: after test arrival setting-up time (being generally 100 hours), stop motor driven systems and cooling device, taken out by test section after eliminating spring pressure, cleaning, drying is weighed, and measure pipeline section fray wall thickness, the mass change of run of designing and wall thickness change.Pipeline section wear morphology is observed, the macro morphology change before and after the wearing and tearing of comparative analysis inside surface simultaneously.
Embodiment two:
During the anti-wear performance of the system testing ceramic-lined composite steel tube of test tubing anti-wear performance adopting embodiment one to provide, concrete steps are as follows:
(1) preparation of samples: intercepted length is the test section of 50mm, and to its outer wall anticorrosion with painting paint; (2) sample is measured: the weight measuring test section with electronic balance (precision 0.1g), with vernier caliper measurement test section wall thickness; (3) friction test block is selected and is installed: select material of sucker rod XSYD as friction test block, and according to test section internal diameter size, processing friction test block lower surface is curved surface, and is installed on support bar; (4) sample is installed: test section is inserted in the support bar with friction test block, and is placed on V-block, adopts pressing plate to compress pipeline section.Upper and lower Correctional tube fragment position, makes its inside surface and friction test block curved surface fit completely; (5) according to spring displacement and pressure contrast relationship, binding tests requirement, before and after Adjustment Tests pipe, the pressure of both sides spring is 30kg; (6) cooling device is added: the liquid coolant mouth of pipe is placed in test section front, and ON cycle pump cools; (7) start test: setting motor speed is 35r/min, start anti-wear performance test; (8) record and observation: the abrasion condition observing friction test block and test section for every 2 hours, when the curved surface left and right sides planar section of test block is less than 1mm, changes friction test block.Should observe the misalignment of spring, carry out trace adjustment, when ensureing in working order, spring is in constant pressure in good time simultaneously; (9) off-test: after test arrival setting-up time (being generally 150-200 hour), stop motor driven systems and cooling device, taken out by test section after eliminating spring pressure, cleaning, drying is weighed, and measure pipeline section fray wall thickness, the mass change of run of designing and wall thickness change.Pipeline section wear morphology is observed, the macro morphology change before and after the wearing and tearing of comparative analysis inside surface simultaneously.
Embodiment three:
During the anti-wear performance of the system testing ultrahigh molecular weight polyethylene tubing of test tubing anti-wear performance adopting embodiment one to provide, concrete steps are as follows:
(1) preparation of samples: intercepted length is the test section of 100mm; (2) sample is measured: the weight measuring test section with electronic balance (precision 0.001g), with vernier caliper measurement test section wall thickness; (3) friction test block is selected and is installed: select material of sucker rod XSYD as friction test block, and according to test section internal diameter size, processing friction test block lower surface is curved surface, and is installed on support bar; (4) sample is installed: test section is inserted in the support bar with friction test block, and is placed on V-block, adopts pressing plate to compress pipeline section.Upper and lower Correctional tube fragment position, makes its inside surface and friction test block curved surface fit completely; (5) according to spring displacement and pressure contrast relationship, binding tests requirement, before and after Adjustment Tests pipe, the pressure of both sides spring is 10kg; (6) cooling device is added: the liquid coolant mouth of pipe is placed in test section front, and ON cycle pump cools; (7) start test: setting motor speed is 20r/min, start anti-wear performance test; (8) record and observation: the abrasion condition observing friction test block and test section for every 8 hours, when the curved surface left and right sides planar section of test block is less than 1mm, changes friction test block.Should observe the misalignment of spring, carry out trace adjustment, when ensureing in working order, spring is in constant pressure in good time simultaneously; (9) off-test: after test arrival setting-up time (being generally 10-50 hour), stop motor driven systems and cooling device, after eliminating spring pressure, test section is taken out, cleaning, drying is weighed, and measure pipeline section fray wall thickness, the mass change of run of designing and wall thickness change, observe pipeline section wear morphology simultaneously, the macro morphology change before and after the wearing and tearing of comparative analysis inside surface.
Embodiment four:
The difference of the present embodiment and embodiment one is, the system of the test tubing anti-wear performance that the present embodiment provides comprises three cover Wear System, three V-blocks and three briquettings, i.e. three support bars, three cooling devices, six spring pressure exerting arrangements and three friction test block.The system of the test tubing anti-wear performance adopting the present embodiment to provide can be tested three test sections simultaneously.
Embodiment five:
The difference of the present embodiment and embodiment one is, the system of the test tubing anti-wear performance that the present embodiment provides comprises five cover Wear System, five V-blocks and five briquettings, i.e. five support bars, five cooling devices, ten spring pressure exerting arrangements and five friction test block.The system of the test tubing anti-wear performance adopting the present embodiment to provide can be tested five test sections simultaneously.
Embodiment six:
The difference of the present embodiment and embodiment one is, the system of the test tubing anti-wear performance that the present embodiment provides, the wherein anti-wear performance of a set of Wear System to plain carbon steel tubing is adopted to test, the anti-wear performance of another set of Wear System to ceramic-lined composite steel tube is adopted to test, wherein friction test block all selects material of sucker rod XSYD, before and after Adjustment Tests pipe, the pressure of both sides spring is 30kg, setting motor speed is 35r/min, test period is 100 hours, by setting same test condition, abrasion test is carried out to two kinds of different tubing, thus obtain the anti-wear performance comparing result of two kinds of tubing.
Embodiment seven:
The difference of the present embodiment and embodiment one is, the system of the test tubing anti-wear performance that the present embodiment provides, the anti-wear performance of first set Wear System to plain carbon steel tubing is adopted to test, the anti-wear performance of the second cover Wear System to ceramic-lined composite steel tube is adopted to test, adopt the 3rd cover Wear System to the anti-wear performance of ultrahigh molecular weight polyethylene tubing wherein friction test block all select material of sucker rod XSYD, before and after Adjustment Tests pipe, the pressure of both sides spring is 30kg, setting motor speed is 35r/min, test period is 100 hours, by setting same test condition, abrasion test is carried out to three kinds of different tubing, thus obtain the anti-wear performance comparing result of three kinds of tubing.
A kind of beneficial effect testing the system and method for tubing anti-wear performance provided by the invention is:
1, a set of drive motor is adopted just can to realize testing while one or more test sections, while improve efficiency, also assures that the comparability of test result, solve the aids abrasion resistance evaluation of metal or non-metal pipe, also can realize the anti-wear performance test of various sheet material.
2, the motor rotating disk of drive motor coordinates with toggle, adjusting the to-and-fro movement speed of toggle, adjusting friction velocity in time by controlling motor speed.
With the addition of spring pressure exerting arrangement above the support bar of 3, test section both sides, test section uniform stressed can be made to wear and tear, effectively prevent the generation of eccentric wear phenomenon.
4, the spring displacement in spring pressure exerting arrangement can arbitrarily adjust, and adjusts the friction force between friction test block and test section with this, and then adjusts wear-resisting testing efficiency.
5, the interpolation of cooling device, can reduce frictional heat, improves abrasion test efficiency.
6, the material of friction test block can arbitrarily be changed, and meets the simulation to the wear-resisting situation of different tubing under different working condition completely, expands wear-resisting range of value.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. test a system for tubing anti-wear performance, it is characterized in that, comprising:
Drive motor, toggle, connecting wedge, at least one angle sheave, at least one support bar, at least two spring pressure exerting arrangements, at least one friction test block, fixed mount and at least one cooling device;
Described drive motor is connected with described toggle, moves reciprocatingly for driving described toggle;
Described toggle is connected with described support bar by described connecting wedge, moves reciprocatingly for driving described support bar;
Described support bar moves reciprocatingly for driving described friction test block;
Described angle sheave is fixing on the table by holder, and is flexibly connected with described toggle, drives support bar to do straight reciprocating motion for controlling toggle;
Described friction test block is fixed on below support bar, with fixing test section inside surface close contact on the table, for rubbing to test section inside surface;
Described spring pressure exerting arrangement one end is connected with described fixed mount, the other end is flexibly connected with described support bar, described spring pressure exerting arrangement, for adjusting the friction force between friction test block and test section, makes test section uniform stressed wear and tear, effectively prevents the generation of eccentric wear phenomenon;
Described cooling device comprises ebullator, sebific duct, liquid storage tank, support and cooling spray; Described liquid storage tank is connected by described sebific duct with ebullator, and is fixed on below worktable; Described ebullator is connected by described sebific duct with cooling spray, and is fixed on the support of worktable; Described cooling spray alignment test pipeline section.
2. test the system of tubing anti-wear performance as claimed in claim 1, it is characterized in that, described spring pressure exerting arrangement comprises:
Back shaft, spring, nut, roller and U-shaped frame;
Described back shaft is plugged on the crossbeam of described fixed mount, and upper end and described nut are spirally connected, and described back shaft is by the upper and lower motion of the described nut of adjustment;
Described spring housing is connected on described back shaft, and bottom is fixedly connected with described back shaft bottom;
Described U-shaped frame is fixedly connected with described back shaft bottom, and described U-shaped frame is flexibly connected with described roller;
Described roller is flexibly connected with described support bar.
3. test the system of tubing anti-wear performance as claimed in claim 1, it is characterized in that, also comprise:
At least one V-block and at least one pressing plate, described V-block is for placing test section, described pressing plate is for compressing test section, make test section fixing on the table, the quantity of described V-block, pressing plate is equal with the quantity of test section, and the quantity of described test section is equal with the quantity of support bar and cooling device.
4. test the system of tubing anti-wear performance as claimed in claim 1, it is characterized in that:
The size of described friction test block, shape and material adjust according to test specimen, to realize the simulation to the wear-resisting situation of various sample under different working condition.
5. use a method for the system testing tubing anti-wear performance described in claim 1, it is characterized in that, comprising:
The internal diameter of test section, thickness and weight are measured;
Friction test block is fixed on support bar;
Test section is socketed in one end that support bar is provided with friction test block, and with the high and low position of V-block Adjustment Tests pipeline section, after test section inside surface and friction test block curved surface are fitted completely, adopts pressing plate to compress test section;
According to pressure set points adjustment spring pressure exerting arrangement, thus the friction force between friction test block and test section is made to reach setting value; Before the test of beginning anti-wear performance, cooling device is arranged on test section front, makes liquid coolant mouth of pipe alignment test pipeline section, described test section is cooled;
Setting motor speed, starts anti-wear performance test;
After test arrives setting-up time, stop motor driver and cooling device, test section is taken out, cleaning, drying is weighed, and measure pipeline section fray wall thickness, the mass change of run of designing and wall thickness change, observe pipeline section wear morphology simultaneously, the macro morphology change before and after the wearing and tearing of comparative analysis inside surface.
6. method as claimed in claim 5, is characterized in that:
When carrying out anti-wear performance test, observe the abrasion condition of friction test block and test section, when friction test block both sides be milled to be less than or equal to 1mm time, friction test block is changed.
7. method as claimed in claim 5, is characterized in that:
The size of described friction test block, shape and material adjust according to test specimen, to realize the simulation to the wear-resisting situation of various sample under different working condition.
8. method as claimed in claim 5, is characterized in that:
Described according to pressure set points adjustment spring pressure exerting arrangement time, according to the contrast relationship of spring displacement and pressure, turn nut and drive back shaft to move up and down, make the displacement of spring reach setting value, thus make the pressure of correspondence reach pressure set points.
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| CN201310071449.2A CN103207124B (en) | 2013-03-06 | 2013-03-06 | The system and method for test tubing anti-wear performance |
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