CN210166256U - Ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture - Google Patents
Ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture Download PDFInfo
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- CN210166256U CN210166256U CN201920880310.5U CN201920880310U CN210166256U CN 210166256 U CN210166256 U CN 210166256U CN 201920880310 U CN201920880310 U CN 201920880310U CN 210166256 U CN210166256 U CN 210166256U
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 238000000840 electrochemical analysis Methods 0.000 claims description 2
- 239000011224 oxide ceramic Substances 0.000 claims 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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Abstract
The utility model relates to a fretting wear field specifically is a ball-board contact high temperature and high pressure water tangential fretting wear test anchor clamps. The plate-shaped sample of the clamp is placed in a groove at the top of a plate-shaped sample fixing base and is fixed through a fastening screw; the base is connected with a transverse shaft transmission rod through a baffle plate, a connecting stud, a fastening screw and a fastening nut, and one end of a transverse shaft is connected with the vibration exciter; the base is connected with the longitudinal shaft transmission rod through the fixing nut, the lower portion of the longitudinal shaft transmission rod is connected with the motor, and the normal load is applied through the movement of the longitudinal shaft rod. The spherical sample is placed in a groove at the bottom of the stepped stud and is locked by the locking nut, the stepped stud is screwed into the fixture fixing plate, the limiting nut is installed at the upper part of the stepped stud, and the fixture fixing plate is installed on the fixture fixing support to fix the spherical sample. The utility model is used for in the autoclave, carry out ball-board contact's fretting wear test in high temperature and high pressure water environment, simple structure, convenient operation, low cost.
Description
Technical Field
The utility model relates to a fretting wear field specifically is a ball-board contact high temperature and high pressure water tangential fretting wear test anchor clamps and application method thereof for the tangential fretting wear test of metal material in simulation high temperature and high pressure return circuit aquatic for the pressurized water reactor nuclear power.
Background
Micromotion refers to the relative motion between two contacting surfaces that occurs on the order of a few microns. In a pressurized water reactor nuclear power station, a gap between a heat transfer pipe of a steam generator and a support structure is small, steam and liquid two-phase flow exists on two sides, and fretting wear caused by flow-induced vibration inevitably exists between the heat transfer pipe and the support structure. Fretting wear caused by flow-induced vibrations is also one of the most prominent causes of fuel rod cladding tubes. The damage of the key components can not only cause the radioactivity of the medium on the nuclear power loop side to increase suddenly, endanger the safety of each loop of the reactor, but also possibly cause the leakage of radioactive substances and cause serious consequences. Therefore, the fretting wear behavior of the nuclear power key component material in the service environment is deeply understood, and the fretting wear rate and the fretting damage model are obtained, so that the method has important engineering significance for performance evaluation and service life estimation of the key material, and is also beneficial to safe operation of the nuclear power plant.
Ball-plate contact is the simplest contact for fretting and is the one that is most advantageous to operate and best suited for basic theoretical studies. There are many kinds of fretting clamps designed by this kind of contact method, but these clamps are mainly used in the solution environment with normal temperature and temperature not higher than 100 ℃. Therefore, it is urgently needed to design a clamp which can be used in high-temperature and high-pressure water (200-360 ℃, 4-20 MPa), and can realize insulation of a sample so as to carry out an electrochemical test in a fretting wear process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can be arranged in high temperature high pressure loop water environment and can reliable and stable ball-board contact high temperature high pressure water tangential fretting wear test anchor clamps and application method thereof realize that nuclear power key material develops fretting wear research in the high temperature high pressure aquatic of simulation service environment.
The technical scheme of the utility model as follows:
a ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture is arranged in an autoclave, the autoclave is covered by an autoclave cover, and the fixture mainly comprises: plate-shaped sample, fastening screw I, right baffle, plate-shaped sample unable adjustment base, baffle fastening screw, left baffle, fastening screw II, ladder double-screw bolt, globular sample, lock nut, fastening nut I, stop nut, fastening nut II, anchor clamps fixed plate, anchor clamps fixed bolster, cross axle right side transfer line, fastening nut III, connecting screw bolt I, fastening nut IV, axis of ordinates transfer line, cross axle left side transfer line, connecting screw bolt II, fastening nut V, concrete structure is as follows:
the right baffle and the left baffle are symmetrically arranged on two sides of the plate-shaped sample fixing base, the right baffle and the left baffle are respectively connected with the plate-shaped sample fixing base through two baffle fastening screws, the right baffle and the left baffle are transversely and tightly combined through the baffle fastening screws, the plate-shaped sample is placed in a groove in the top of the plate-shaped sample fixing base, and the plate-shaped sample is fixed on two adjacent side surfaces of the groove through a fastening screw I and a fastening screw II, so that the plate-shaped sample is fixed;
the unthreaded hole at the bottom of the plate-shaped sample fixing base is aligned to the top of the longitudinal shaft transmission rod and is fixed with the longitudinal shaft transmission rod through a fastening nut IV, and the lower part of the longitudinal shaft transmission rod is connected with a stepping motor outside the high-pressure kettle; the left side of the plate-shaped sample fixing base is connected with a cross shaft left transmission rod through a left baffle, a connecting stud II and a fastening nut V, the right side of the plate-shaped sample fixing base is connected with a cross shaft right transmission rod through a right baffle, a connecting stud I and a fastening nut III, the connecting stud II and the cross shaft left transmission rod are tightly connected and fixed through the fastening nut, the connecting stud I and the cross shaft right transmission rod are tightly connected and fixed through the fastening nut, the cross shaft left transmission rod and the cross shaft right transmission rod are respectively connected with a vibration exciter outside the autoclave and a displacement sensor, and the frequency and the amplitude are accurately controlled;
the spherical sample is embedded into a pit at the bottom of the stepped stud, a locking nut with a round hole in the middle is arranged at the bottom of the stepped stud and is screwed with the lower stud of the stepped stud through threads, and the locking nut is connected and fastened with the bottom of the stepped stud through threads; the stepped stud is screwed into a threaded hole in the center of the fixture fixing plate, a stud in the middle of the stepped stud is in threaded connection with the fixture fixing plate, a stud on the upper portion of the stepped stud extends out, a cylinder with external threads is arranged at the top of the threaded hole in the center of the fixture fixing plate, the cylinder and the fixture fixing plate are of an integrated structure, a limiting nut is mounted on the top of the cylinder through the stud on the upper portion, a fastening nut I with a through hole at the top end is sleeved on the stud on the upper portion of the stepped stud through a top through hole, the fastening nut I is buckled on the outer sides of the limiting nut and the cylinder; the fixture fixing plate is arranged on the circular truncated cone at the top of the fixture fixing support and is fastened through a fastening nut II, so that the spherical sample is fixed.
According to the ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture, the thickness of a plate-shaped sample is not smaller than the depth of a groove, threaded holes are formed in two adjacent side surfaces of the groove, a fastening screw I is directly screwed into the threaded hole in the side surface of the upper portion of a plate-shaped sample fixing base, and a fastening screw II penetrates through a unthreaded hole in the side surface of the top of a left baffle and is screwed into the threaded hole in the side surface of the upper portion of a corresponding plate-shaped sample fixing.
The ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture is characterized in that a circular hole is formed in the center of the bottom of the high-pressure kettle, and the longitudinal shaft transmission rod is sealed with the high-pressure kettle through an O-shaped ring and a nut.
The ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture is characterized in that circular holes are formed in two sides of the high-pressure kettle, and the left transmission rod and the right transmission rod of the cross shaft are respectively sealed with the high-pressure kettle through O-shaped rings and nuts.
According to the ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture, the plate-shaped sample fixing base is connected with the longitudinal shaft transmission rod through the unthreaded hole, and a gap exists between the plate-shaped sample fixing base and the longitudinal shaft transmission rod.
The diameter of the round hole of the ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture is smaller than that of the spherical sample, so that the spherical sample is fixed between the concave pit and the round hole.
According to the ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture, a spherical sample and a plate-shaped sample are vertically corresponding and in contact, the distance between the spherical sample and the plate-shaped sample is adjusted by adjusting the screwing distance of a step stud, a stable normal load is applied by changing the displacement of a vertical shaft transmission rod through a stepping motor, and the relative motion between the spherical sample and the plate-shaped sample is realized through the vibration of a horizontal shaft.
The ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture is characterized in that threaded holes are formed in the periphery of the bottom of the high-pressure kettle, threads are machined in the bottom end of a fixture fixing support, and the fixture fixing support is fixedly connected with the bottom of the high-pressure kettle through the threads.
According to the ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture, the zirconia ceramic pieces are arranged on the periphery and the bottom of the groove in the top of the plate-shaped sample fixing base, the spherical sample is replaced by the zirconia ceramic balls, insulation of the plate-shaped sample is achieved, and therefore electrochemical testing in the fretting wear process is achieved.
The utility model has the advantages and beneficial effects that:
1. the utility model discloses a high temperature high pressure water fretting anchor clamps have 304 or 316L stainless steel, and high temperature and high pressure water corrosion resistant, high temperature strength is also higher, can reliably use in high temperature high pressure water environment for a long time.
2. The utility model discloses a processing screw hole and being equipped with corresponding fastening screw in the both sides of plate specimen unable adjustment base upper portion recess can realize the fastening to the plate specimen of unidimensional not to the reduction is to the requirement of plate specimen machining precision.
3. The utility model discloses an arrange the zirconia potsherd around plate specimen unable adjustment base top recess and bottom to thereby change globular sample for the electrochemistry test that the insulating realization fine motion wearing and tearing in-process of zirconia ceramic ball can realize plate specimen, design benefit, easy operation is convenient.
4. The utility model discloses in no matter be plate-like sample unable adjustment base's height or the height of globular sample all can adjust through stop nut and rotatory ladder double-screw bolt.
Drawings
FIGS. 1(a) - (b) are plate-like sample clamp views, the plate-like sample is 20mm long, 10mm wide and 5mm thick; fig. 1(a) is a front view, and fig. 1(b) is a plan view.
FIG. 2 is a view showing a spherical sample holder, wherein the diameter of the spherical sample is 6.5 mm.
Fig. 3-4 are overall assembly structure views of the present invention; fig. 3 is a front view, and fig. 4 is a sectional view taken along line a-a of fig. 3.
In fig. 1 to 4, 1 is a plate-like specimen; 2 fastening the screw I; 3, a right baffle plate; 4, fixing a plate-shaped sample base; 5, fastening screws of the baffle plate; 6, a left baffle plate; 7 fastening screw II; 8, a step stud; 9 spherical sample; 10 locking the nut; 11 fastening a nut I; 12, a limit nut; 13 fastening a nut II; 14 a clamp fixing plate; 15 clamp fixing support; a 16 horizontal axis right drive rod; 17 fastening a nut III; 18 connecting a stud I; 19 fastening a nut IV; 20 a longitudinal shaft transmission rod; 21 a horizontal axis left drive rod; 22 connecting studs II; 23 fastening the nut V; 24 a cylinder; and (5) carrying out 25 autoclave.
Detailed Description
As shown in fig. 1-4, the ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture of the present invention is disposed in the autoclave 25, the cover of the autoclave 25 is on the top, and the fixture mainly comprises: the device comprises a plate-shaped sample 1, a fastening screw I2, a right baffle 3, a plate-shaped sample fixing base 4, a baffle fastening screw 5, a left baffle 6, a fastening screw II 7, a stepped stud 8, a spherical sample 9, a locking nut 10, a fastening nut I11, a limiting nut 12, a fastening nut II 13, a clamp fixing plate 14, a clamp fixing support 15, a transverse shaft right transmission rod 16, a fastening nut III 17, a connecting stud I18, a fastening nut IV 19, a longitudinal shaft transmission rod 20, a transverse shaft left transmission rod 21, a connecting stud II 22, a fastening nut V23 and the like, and has the following specific structure:
the right baffle 3 and the left baffle 6 are symmetrically arranged on two sides of the plate-shaped sample fixing base 4, the right baffle 3 and the left baffle 6 are respectively connected with the plate-shaped sample fixing base 4 through two baffle fastening screws 5, and are transversely and tightly combined with the right baffle 3 and the left baffle 6 through the baffle fastening screws 5, so that the balance of the plate-shaped sample fixing base is kept. The plate-shaped sample 1 is placed in a groove at the top of a plate-shaped sample fixing base 4, the thickness of the plate-shaped sample 1 is not smaller than the depth of the groove, threaded holes are machined in two adjacent side faces of the groove, and the plate-shaped sample 1 is fixed on the two adjacent side faces of the groove through a fastening screw I2 and a fastening screw II 7, so that the plate-shaped sample 1 is fixed. The fastening screw I2 is directly screwed into a threaded hole in the side face of the upper part of the plate-shaped sample fixing base 4, and the fastening screw II 7 penetrates through a unthreaded hole in the side face of the top of the left baffle 6 and is screwed into a threaded hole in the side face of the upper part of the corresponding plate-shaped sample fixing base 4.
The unthreaded hole at the bottom of the plate-shaped sample fixing base 4 is aligned to the top of the longitudinal axis transmission rod 20 and is fixed with the longitudinal axis transmission rod 20 through a fastening nut IV 19, a circular hole is formed in the center of the bottom of the autoclave 25, the longitudinal axis transmission rod 20 is sealed with the autoclave 25 through an O-shaped ring and a nut, and the lower part of the longitudinal axis transmission rod 20 is connected with a stepping motor outside the autoclave 25, so that stable load control is realized. The plate-shaped sample fixing base 4 is connected with the longitudinal axis transmission rod 20 through an unthreaded hole, a certain gap exists between the plate-shaped sample fixing base and the longitudinal axis transmission rod to realize the left-right vibration of the plate-shaped sample 1, and the fastening nut IV 19 mainly plays a limiting role. The left side of a plate-shaped sample fixing base 4 is connected with a cross shaft left transmission rod 21 through a left baffle 6, a connecting stud II 22 and a fastening nut V23, the right side of the plate-shaped sample fixing base 4 is connected with a connecting stud I18 and a fastening nut III 17 through a right baffle 3 and a cross shaft right transmission rod 16, the connecting stud II 22 and the cross shaft left transmission rod 21 are tightly connected and fixed through a fastening nut, the connecting stud I18 and the cross shaft right transmission rod 16 are tightly connected and fixed through a fastening nut to achieve fastening connection in the cross shaft direction, the levelness of the whole cross shaft transmission rod can be guaranteed to be on the same horizontal line, the baffle fastening screw 5 needs to be fastened in times, and the cross shaft transmission rod is guaranteed to be in a. Circular holes are formed in two sides of the high-pressure kettle 25, and the transverse shaft left transmission rod 21 and the transverse shaft right transmission rod 16 are respectively sealed with the high-pressure kettle 25 through O-shaped rings and nuts; the transverse shaft left driving rod 21 and the transverse shaft right driving rod 16 are respectively connected with a vibration exciter and a displacement sensor outside the autoclave 25, so that the precise control of frequency and amplitude is realized.
The spherical sample 9 is embedded into a pit at the bottom of the stepped stud 8, the locking nut 10 with a round hole in the middle is installed at the bottom of the stepped stud 8 and screwed with the lower stud of the stepped stud 8 through threads, the locking nut 10 is connected and fastened with the bottom of the stepped stud 8 through threads, and the diameter of the round hole is smaller than that of the spherical sample 9, so that the spherical sample 9 is fixed between the pit and the round hole. The stepped stud 8 is screwed into a threaded hole in the center of the fixture fixing plate 14, a middle stud of the stepped stud 8 is in threaded connection with the fixture fixing plate 14, an upper stud of the stepped stud 8 extends out, a cylinder 24 with external threads is arranged at the top of the threaded hole in the center of the fixture fixing plate 14, the cylinder 24 and the fixture fixing plate 14 are of an integrated structure, a limit nut 12 is mounted on the top of the cylinder 24 through the upper stud, a fastening nut I11 with a through hole in the top end is sleeved on the upper stud of the stepped stud 8 through a top through hole, the fastening nut I11 is buckled on the limit nut 12 through a lower concave groove cover, the outer side of the cylinder 24 is connected with the fastening nut I. The fixture fixing plate 14 is mounted on the circular table at the top of the fixture fixing support 15 and is fastened by a fastening nut II 13, so that the spherical sample 9 is finally fixed. The spherical sample 9 is in contact with the plate-shaped sample 1 vertically, the distance between the spherical sample 9 and the plate-shaped sample 1 is adjusted by adjusting the screwing distance of the stepped stud 8, the displacement of the vertical axis transmission rod 20 is changed by the stepping motor to apply a stable normal load, and the relative motion between the spherical sample 9 and the plate-shaped sample 1 is realized by the vibration of the horizontal axis. Threaded holes are formed in the periphery of the bottom of the autoclave 25, threads are machined in the bottom end of the clamp fixing support 15, and the clamp fixing support 15 is fixedly connected with the bottom of the autoclave 25 through the threads.
All parts of the clamp are required to be processed by 304 or 316L austenitic stainless steel which resists high temperature and high pressure water corrosion and has good high temperature strength. The spherical sample 9 and the plate-shaped sample 1 can be processed by stainless steel, nickel-based alloy, zirconium alloy and the like, and the spherical sample 9 and the plate-shaped sample 1 can be processed by adding ZrO between the spherical sample 9 and the plate-shaped sample 1 and covering the ZrO with the ZrO2The wire was spot-welded on the plate-like test piece 1 to perform electrochemical measurement in such a manner that insulation was performed by means of the Zr-4 alloy insulating gasket.
As shown in fig. 1-4, the application method of the ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture of the present invention is as follows:
(1) placing a plate-shaped sample 1 in a groove at the top of a plate-shaped sample fixing base 4, and fixing the plate-shaped sample 1 through a fastening screw I2 and a fastening screw II 7 to realize the fixation of the plate-shaped sample 1;
(2) the side surface of the plate-shaped sample fixing base 4 is provided with a threaded hole, and the left baffle 6 and the right baffle 3 are connected with the plate-shaped sample fixing base 4 through the baffle fastening screw 5;
(3) aligning a light hole at the bottom of the plate-shaped sample fixing base 4 with the top of the longitudinal axis transmission rod 20, and placing the plate-shaped sample fixing base 4 on the longitudinal axis transmission rod 20, wherein the plate-shaped sample fixing base 4 is connected with the longitudinal axis transmission rod 20 through a fastening nut IV 19; the lower part of the longitudinal axis transmission rod 20 is connected with a stepping motor, and the longitudinal axis transmission rod 20 moves up and down to apply normal load to the plate-shaped sample 1 on the plate-shaped sample fixing base 4;
(4) threaded holes are formed in the end face of the transverse shaft left transmission rod 21 and the side face of the left baffle 6, and the end face of the transverse shaft left transmission rod 21 and the side face of the left baffle 6 are connected through a connecting stud II 22 and fastened through a fastening nut V23; the end surface of the transverse shaft right driving rod 16 and the side surface of the right baffle plate 3 are both provided with threaded holes, and the end surface of the transverse shaft right driving rod 16 and the right baffle plate 3 are connected through a connecting stud I18 and fastened through a fastening nut III 17; one end of the transverse shaft left transmission rod 21 and one end of the transverse shaft right transmission rod 16 are connected with the vibration exciter, and the plate-shaped sample 1 moves left and right through the vibration of the transverse shaft left transmission rod 21 and the transverse shaft right transmission rod 16;
(5) placing a spherical sample 9 in a groove at the bottom of a stepped stud 8, locking the spherical sample by using a locking nut 10, and screwing the stepped stud 8 into a fixture fixing plate 14;
(6) after the upper part of the stepped stud 8 is provided with a limit nut 12, the stepped stud is fastened by a fastening nut I11;
(7) mounting a fixture fixing plate 14 on a circular table of a fixture fixing support 15, and fastening by using a fastening nut II 13 to fix the spherical sample 9;
(8) and closing the autoclave 25, switching on a circulating water loop, adjusting the temperature, the pressure and the electrochemical parameters, and performing the fretting wear test after all the set parameters are stable.
Examples
In the examples, a 690 alloy plate sample having a length of 20mm, a width of 10mm and a thickness of 6mm was used; a304 stainless steel ball sample with a diameter of 6.35mm was used. After the test sample is installed according to the using method, a fretting wear test is carried out in high-temperature high-pressure water, the test temperature is 288 ℃, the pressure is 9MPa, the normal load is 40N, the vibration frequency is 60Hz, the amplitude is +/-50 mu m, and the test time is 46.3 h. And (4) grinding trace appearance on the plate-shaped sample after the test is finished. The appearance of the visible grinding marks is uniform, and the requirements of tests and design are met.
The embodiment result shows that the clamp is mainly used in an autoclave for carrying out ball-plate contact type fretting wear test in a high-temperature and high-pressure water environment, and has the advantages of simple structure, convenient operation and low cost.
Claims (9)
1. A ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture is characterized in that the fixture is arranged in an autoclave, the autoclave is covered by an autoclave cover, and the fixture mainly comprises: plate-shaped sample, fastening screw I, right baffle, plate-shaped sample unable adjustment base, baffle fastening screw, left baffle, fastening screw II, ladder double-screw bolt, globular sample, lock nut, fastening nut I, stop nut, fastening nut II, anchor clamps fixed plate, anchor clamps fixed bolster, cross axle right side transfer line, fastening nut III, connecting screw bolt I, fastening nut IV, axis of ordinates transfer line, cross axle left side transfer line, connecting screw bolt II, fastening nut V, concrete structure is as follows:
the right baffle and the left baffle are symmetrically arranged on two sides of the plate-shaped sample fixing base, the right baffle and the left baffle are respectively connected with the plate-shaped sample fixing base through two baffle fastening screws, the right baffle and the left baffle are transversely and tightly combined through the baffle fastening screws, the plate-shaped sample is placed in a groove in the top of the plate-shaped sample fixing base, and the plate-shaped sample is fixed on two adjacent side surfaces of the groove through a fastening screw I and a fastening screw II, so that the plate-shaped sample is fixed;
the unthreaded hole at the bottom of the plate-shaped sample fixing base is aligned to the top of the longitudinal shaft transmission rod and is fixed with the longitudinal shaft transmission rod through a fastening nut IV, and the lower part of the longitudinal shaft transmission rod is connected with a stepping motor outside the high-pressure kettle; the left side of the plate-shaped sample fixing base is connected with a cross shaft left transmission rod through a left baffle, a connecting stud II and a fastening nut V, the right side of the plate-shaped sample fixing base is connected with a cross shaft right transmission rod through a right baffle, a connecting stud I and a fastening nut III, the connecting stud II and the cross shaft left transmission rod are tightly connected and fixed through the fastening nut, the connecting stud I and the cross shaft right transmission rod are tightly connected and fixed through the fastening nut, the cross shaft left transmission rod and the cross shaft right transmission rod are respectively connected with a vibration exciter outside the autoclave and a displacement sensor, and the frequency and the amplitude are accurately controlled;
the spherical sample is embedded into a pit at the bottom of the stepped stud, a locking nut with a round hole in the middle is arranged at the bottom of the stepped stud and is screwed with the lower stud of the stepped stud through threads, and the locking nut is connected and fastened with the bottom of the stepped stud through threads; the stepped stud is screwed into a threaded hole in the center of the fixture fixing plate, a stud in the middle of the stepped stud is in threaded connection with the fixture fixing plate, a stud on the upper portion of the stepped stud extends out, a cylinder with external threads is arranged at the top of the threaded hole in the center of the fixture fixing plate, the cylinder and the fixture fixing plate are of an integrated structure, a limiting nut is mounted on the top of the cylinder through the stud on the upper portion, a fastening nut I with a through hole at the top end is sleeved on the stud on the upper portion of the stepped stud through a top through hole, the fastening nut I is buckled on the outer sides of the limiting nut and the cylinder; the fixture fixing plate is arranged on the circular truncated cone at the top of the fixture fixing support and is fastened through a fastening nut II, so that the spherical sample is fixed.
2. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein the thickness of the plate-shaped sample is not less than the depth of the groove, threaded holes are formed in two adjacent side surfaces of the groove, a fastening screw I is directly screwed into the threaded hole in the side surface of the upper part of the plate-shaped sample fixing base, and a fastening screw II penetrates through a unthreaded hole in the side surface of the top of the left baffle plate and is screwed into the threaded hole in the side surface of the upper part of the corresponding plate-shaped sample fixing base.
3. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein a circular hole is formed in the center of the bottom of the high-pressure kettle, and the longitudinal shaft transmission rod is sealed with the high-pressure kettle through an O-shaped ring and a nut.
4. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein circular holes are formed in two sides of the high-pressure kettle, and the transverse shaft left transmission rod and the transverse shaft right transmission rod are respectively sealed with the high-pressure kettle through O-rings and nuts.
5. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein the plate-shaped sample fixing base is connected with the longitudinal axis transmission rod through a light hole, and a gap is formed between the plate-shaped sample fixing base and the longitudinal axis transmission rod.
6. The ball-plate contact type high temperature and high pressure water tangential fretting wear test fixture according to claim 1, wherein the diameter of the circular hole is smaller than that of the spherical sample, so that the spherical sample is fixed between the concave pit and the circular hole.
7. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein the spherical test sample and the plate-shaped test sample are vertically corresponding and in contact, the distance between the spherical test sample and the plate-shaped test sample is adjusted by adjusting the screwing distance of the stepped stud, a stable normal load is applied by changing the displacement of the vertical axis transmission rod through the stepping motor, and the relative motion between the spherical test sample and the plate-shaped test sample is realized through the vibration of the horizontal axis.
8. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein threaded holes are formed in the periphery of the bottom of the autoclave, threads are machined in the bottom end of the fixture fixing support, and the fixture fixing support is fixedly connected with the bottom of the autoclave through the threads.
9. The ball-plate contact type high-temperature and high-pressure water tangential fretting wear test fixture as claimed in claim 1, wherein the insulation of the plate-shaped sample is realized by arranging zirconium oxide ceramic plates around and at the bottom of a groove at the top of the plate-shaped sample fixing base and replacing the spherical sample with zirconium oxide ceramic balls, thereby realizing the electrochemical test in the fretting wear process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920880310.5U CN210166256U (en) | 2019-06-12 | 2019-06-12 | Ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920880310.5U CN210166256U (en) | 2019-06-12 | 2019-06-12 | Ball-plate contact type high-temperature high-pressure water tangential fretting wear test fixture |
Publications (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504588A (en) * | 2020-05-29 | 2020-08-07 | 上海交通大学 | Fuel rod bundle two-phase flow fluid-solid coupling test loop |
| CN111706677A (en) * | 2020-06-05 | 2020-09-25 | 浙江工业大学 | Lower friction pair and transmission device |
| CN111707433A (en) * | 2020-06-24 | 2020-09-25 | 西南交通大学 | Fretting damage test device for 690 alloy pipe under high temperature and high pressure and implementation method thereof |
| CN113588473A (en) * | 2021-07-26 | 2021-11-02 | 中机试验装备股份有限公司 | Fretting wear test device and method for high-temperature and high-pressure water environment |
-
2019
- 2019-06-12 CN CN201920880310.5U patent/CN210166256U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504588A (en) * | 2020-05-29 | 2020-08-07 | 上海交通大学 | Fuel rod bundle two-phase flow fluid-solid coupling test loop |
| CN111706677A (en) * | 2020-06-05 | 2020-09-25 | 浙江工业大学 | Lower friction pair and transmission device |
| CN111707433A (en) * | 2020-06-24 | 2020-09-25 | 西南交通大学 | Fretting damage test device for 690 alloy pipe under high temperature and high pressure and implementation method thereof |
| CN113588473A (en) * | 2021-07-26 | 2021-11-02 | 中机试验装备股份有限公司 | Fretting wear test device and method for high-temperature and high-pressure water environment |
| CN113588473B (en) * | 2021-07-26 | 2023-06-20 | 中机试验装备股份有限公司 | High-temperature high-pressure water environment fretting wear test device and test method |
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