Abrasion test device for liquid lead bismuth environment

Abstract

The utility model discloses a liquid lead bismuth environment abrasion test device which comprises a test main machine, and the test main machine comprises a test rack, a test kettle, a first lifting platform, a test kettle cover, a reciprocating driving assembly and a lever type loading assembly. The test kettle cover is arranged at the lower end of the first lifting platform, the reciprocating driving assembly and the lever type loading assembly penetrate through the test kettle cover, the lower ends of the reciprocating driving assembly and the lever type loading assembly penetrate below the test kettle cover, and the lower ends of the reciprocating driving assembly and the lever type loading assembly are used for loading a first sample and a second sample respectively; the first lifting platform can drive the test kettle cover to lift to leave or cover the test kettle and drive the reciprocating driving assembly and the lever type loading assembly to lift to enable the lower ends of the reciprocating driving assembly and the lever type loading assembly to extend into or leave the test kettle; the lever type loading assembly is in swing connection with the first lifting platform through a fulcrum, and the lever type loading assembly can swing around the fulcrum relative to the first lifting platform so as to drive the second sample to swing towards or away from the first sample.

Description

Technical Field

[0001] The utility model belongs to the technical field of abrasion testing, and in particular relates to a liquid lead-bismuth environment abrasion testing device. Background Art

[0002] In the nuclear power industry, lead-bismuth reactors are regarded as the fourth-generation nuclear energy system, which has the characteristics of inherent safety, easy miniaturization and modularization, and environmental friendliness, and has a very large market prospect and advantages. Therefore, my country has paid more and more attention to the research and development of materials in high-temperature liquid lead-bismuth environments.

[0003] At present, in the domestic nuclear power industry or stress corrosion and other material testing industries, it is common to use some normal temperature air environment, or some high temperature and high pressure water environment abrasion test equipment. The existing abrasion test equipment is not suitable for abrasion testing in high temperature liquid lead bismuth environment. It is difficult to implement material abrasion testing in high temperature liquid lead bismuth environment because the high temperature liquid lead bismuth environment corrodes metal materials more seriously. Utility Model Content

[0004] In view of the problems in the background technology, the purpose of the utility model is to provide a liquid lead-bismuth environmental abrasion test device for performing an abrasion test on a sample, comprising a test host, the test host comprising a test frame and a test kettle and a first lifting platform sequentially arranged on the test frame from bottom to top, and a test kettle cover, a reciprocating drive assembly, and at least one lever-type loading assembly arranged on the first lifting platform, wherein the test kettle stores liquid lead-bismuth medium;

[0005] The test kettle cover is arranged at the lower end of the first lifting platform, the reciprocating drive assembly and the lever-type loading assembly are both arranged through the test kettle cover and the lower ends are both arranged below the test kettle cover, and the lower ends of the reciprocating drive assembly and the lever-type loading assembly are respectively used to load the first sample and the second sample; the first lifting platform can move up and down along the test frame to drive the test kettle cover to move up and down so that it leaves or covers the test kettle, and drive the reciprocating drive assembly and the lever-type loading assembly to move up and down so that the lower ends extend into or leave the test kettle;

[0006] The lever-type loading assembly is swingably connected to the first lifting platform via a fulcrum, and the lever-type loading assembly can swing around the fulcrum relative to the first lifting platform to drive the second specimen to swing toward or away from the first specimen; the reciprocating drive assembly can move the first specimen up and down, and during the test, the second specimen contacts the first specimen through swinging.

[0007] Preferably, it includes two lever-type loading assemblies, which are respectively arranged on both sides of the reciprocating drive assembly, and each of the two sides of the lower end of the reciprocating drive assembly is provided with a first specimen. During the test, the two second specimens of the two lever-type loading assemblies are respectively in contact with the two first specimens on both sides.

[0008] Preferably, the reciprocating drive assembly includes a first drive assembly and a reciprocating rod, the reciprocating rod is passed through the test kettle cover and the lower end of the reciprocating rod is used to load the first sample, and the first drive assembly is driven and connected to the reciprocating rod to drive the reciprocating rod to reciprocate up and down.

[0009] Preferably, a first sample clamp for clamping the first sample is provided at the lower end of the reciprocating rod.

[0010] Preferably, a first force sensor is provided between the output end of the first driving assembly and the reciprocating rod.

[0011] Preferably, the lever-type loading assembly includes a second driving assembly and a swing lever, wherein the swing lever is passed through the test kettle cover and the lower end of the swing lever is used to load the second sample, and the second driving assembly is driven to connect to the upper end of the swing lever, and the second driving assembly drives the upper end of the swing lever to drive it to swing around the fulcrum.

[0012] Preferably, the first lifting platform is provided with a fulcrum joint at the fulcrum, and the swing lever is rotatably connected to the fulcrum joint;

[0013] A driving joint is provided at the upper end of the swing lever, and the output end of the second driving component is hinged to the swing lever through the driving joint.

[0014] Preferably, the test kettle cover is provided with a swing groove, the swing lever is inserted into the swing groove, the swing lever can swing in the swing groove, and the swing groove is provided with a sealing component between the test kettle cover and the swing lever;

[0015] The sealing assembly includes a bellows, a first sealing ring and a second sealing ring. The bellows, the first sealing ring and the second sealing ring are all sleeved on the swing lever. The first sealing ring and the second sealing ring are respectively arranged at both ends of the bellows, and the first sealing ring is arranged between the bellows and the test kettle cover, and the second sealing ring is arranged between the bellows and the swing lever.

[0016] Preferably, a second sample clamp for clamping the second sample is provided at the lower end of the swing lever.

[0017] Preferably, a second force sensor is provided between the output end of the second driving assembly and the swing lever.

[0018] Preferably, the first lifting platform is driven by two third driving assemblies to achieve up and down movement, and the two third driving assemblies are respectively arranged at two diagonal positions of the first lifting platform.

[0019] Preferably, a first heating furnace is provided on the test rack, and the test kettle is arranged in the first heating furnace.

[0020] Preferably, it comprises a melting main machine for melting the lead-bismuth medium, the melting main machine comprises a melting frame, a second lifting platform, a melting kettle, a melting kettle cover and a second heating furnace, the melting kettle and the second heating furnace are both arranged on the melting frame, and the melting kettle is arranged in the second heating furnace;

[0021] The second lifting platform is arranged on the melting frame and can move up and down along the melting frame. The melting kettle cover is arranged at the lower end of the second lifting platform. The second lifting platform drives the melting kettle cover to lift and lower it to leave or cover the melting kettle.

[0022] Preferably, the second lifting platform is driven by a fourth driving assembly to achieve up and down movement.

[0023] Preferably, it includes a connecting pipeline connecting the melting kettle and the test kettle, which is used to transport the liquid lead-bismuth medium in the melting kettle to the test kettle.

[0024] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0025] 1. The first lifting platform of the utility model can move up and down along the test machine frame to drive the test kettle cover to lift and lower it to leave or cover the test kettle, and drive the reciprocating drive assembly and the lever-type loading assembly to lift and lower it to extend the lower end into or leave the test kettle. When the lower ends of the reciprocating drive assembly and the lever-type loading assembly extend into the test kettle, the first sample and the second sample are also located in the test kettle. At this time, after the lever-type loading assembly drives the second sample to swing and contact the first sample, the reciprocating drive assembly drives the first sample to reciprocate up and down to realize the abrasion test between the first sample and the second sample.

[0026] 2. The utility model includes two lever-type loading assemblies, which are respectively arranged on both sides of the reciprocating drive assembly. During the test, the two second specimens of the two lever-type loading assemblies are symmetrically contacted with the two first specimens, so that force balance is achieved, bending of the reciprocating drive assembly is avoided, and the abrasion test accuracy is higher.

[0027] 3. The sealing assembly of the utility model includes a bellows, a first sealing ring and a second sealing ring. The first sealing ring and the second sealing ring are respectively arranged at both ends of the bellows, and the first sealing ring is arranged between the bellows and the test kettle cover, and the second sealing ring is arranged between the bellows and the swing lever, so that the test kettle cover can be effectively sealed at the swing lever to avoid leakage of the medium, and the test function of the swing lever can be realized, because the bellows has good axial and radial deformation adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic diagram of the melting host and the testing host of the utility model;

[0030] Figure 2 This is a schematic diagram of the connection pipeline of the utility model;

[0031] Figure 3 This is the axonometric diagram of the melting main machine of the utility model;

[0032] Figure 4 This is a front view of the melting main machine of the utility model;

[0033] Figure 5 This is the axonometric drawing of the test host of the utility model;

[0034] Figure 6 This is a front view of the test host of the utility model;

[0035] Figure 7 This is a cross-sectional view of the sealing component of the utility model.

[0036] Description of reference numerals:

[0037] 100, melting host; 101, linear drive; 102, first sprocket; 103, second sprocket; 104, chain; 105, second melting column; 106, melting top plate; 107, second lifting platform; 108, connecting column; 109, second platform plate; 110, melting kettle cover; 111, melting kettle; 112, first melting column; 113, second heating furnace; 114, second support plate; 115, melting bottom plate; 200, test host; 201, test column; 202, articulated screw; 203, first sample fixture; 204, lower platform plate; 205, reciprocating rod; 206, third drive assembly; 207, upper platform plate; 208, first Driving assembly; 209, first force sensor; 210, driving joint; 211, second force sensor; 212, second driving assembly; 213, mounting frame; 214, fulcrum joint; 215, thermal insulation sleeve; 216, swing lever; 217, second sample fixture; 218, test kettle; 219, first heating furnace; 220, first support plate; 221, adjustable support seat; 222, first platform plate; 223, test kettle cover; 224, bellows; 225, first sealing ring; 226, second sealing ring; 227, matching groove; 228, test top plate; 229, test bottom plate; 300, connecting pipeline; 301, melting kettle interface; 302, test kettle interface. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] See also Figures 1 to 7The core of the utility model is to provide a liquid lead-bismuth environment abrasion test device, which is used to perform abrasion tests on samples in a high-temperature liquid lead-bismuth medium environment, including a test host 200, a melting host 100 and a connecting pipeline 300. The test host 200 is used to implement the abrasion test, and the melting host 100 is used to melt the required lead-bismuth medium in advance. One end of the connecting pipeline 300 is connected to the melting kettle 111 through a melting kettle interface 301, and the other end is connected to the test kettle 218 through a test kettle interface 302, and is used to transport the liquid lead-bismuth medium in the melting kettle 111 to the test kettle 218. A number of control valves and filters are also provided in the connecting pipeline 300, and an electric heating cable is also wound around the connecting pipeline 300 for heating and heat preservation.

[0041] The test host 200 includes a test frame and a test kettle 218 and a first lifting platform arranged on the test frame from bottom to top, as well as a test kettle cover 223, a reciprocating drive component, and at least one lever-type loading component arranged on the first lifting platform. Liquid lead-bismuth medium is stored in the test kettle 218.

[0042] The test rack specifically includes a test bottom plate 229, four test columns 201 and a test top plate 228. The four test columns 201 are arranged between the test bottom plate 229 and the test top plate 228 and are distributed at four corners. The four test columns 201 support the entire test host 200. A first support plate 220 is provided at the lower part of the four test columns 201. The first support plate 220 is sleeved on the four test columns 201, and a plurality of adjustable support seats 221 are provided at the lower end of the first support plate 220. The adjustable support seats 221 are arranged on the test bottom plate 229 and are used to support the first support plate 220. The adjustable support seats 221 can not only support the first support plate 220, but also support height adjustment. In this embodiment, four adjustable support seats 221 are provided. Of course, in other embodiments, other numbers can also be used. This is not limited in this embodiment. A test kettle 218 is installed on the first support plate 220, and further, a first heating furnace 219 is provided on the first support plate 220. The test kettle 218 is arranged in the first heating furnace 219. The first heating furnace 219 can keep the liquid lead-bismuth medium in the test kettle 218 warm so that it is always at the required temperature.

[0043] A first platform plate 222 is provided on the upper end of the test kettle 218 on the four test columns 201 . The first platform plate 222 is fixedly connected to the four test columns 201 and is welded and sealed to the peripheral side of the test kettle 218 .

[0044] The first lifting platform is arranged above the test kettle 218, and the first lifting platform is slidably connected to the four test columns 201 through linear bearings, that is to say, the first lifting platform can slide up and down along the four test columns 201. The first lifting platform is driven by two third drive assemblies 206 to achieve up and down movement, and the two third drive assemblies 206 are respectively arranged at two diagonal positions of the first lifting platform. The diagonal installation makes it smoother to drive the first lifting platform to rise and fall, and the first lifting platform will not be deflected or stuck. Specifically, one end of the third drive assembly 206 is connected to the first lifting platform, and the other end is connected to the test top plate 228. In this embodiment, the third drive assembly 206 is an electric push rod. Of course, in other embodiments, the third drive assembly 206 can also be a cylinder, an oil cylinder, etc.

[0045] The first lifting platform specifically includes an upper platform plate 207 and a lower platform plate 204 which are fixedly connected to each other. A test kettle cover 223 is installed at the lower end of the lower platform plate 204. The reciprocating drive assembly and the lever-type loading assembly are both passed through the lower platform plate 204 and the test kettle cover 223, and the lower ends of the reciprocating drive assembly and the lever-type loading assembly are both passed through the bottom of the test kettle cover 223. The lower ends of the reciprocating drive assembly and the lever-type loading assembly are used to load the first sample and the second sample respectively; the first lifting platform drives the test kettle cover 223 to lift and lower so that it leaves or covers the test kettle 218, and drives the reciprocating drive assembly and the lever-type loading assembly to lift and lower so that their lower ends extend into or leave the test kettle 218.

[0046] The lever-type loading assembly is swingably connected to the first lifting platform through a fulcrum. The lever-type loading assembly can swing around the fulcrum relative to the first lifting platform to drive the second specimen to swing toward or away from the first specimen; the reciprocating drive assembly can move the first specimen back and forth up and down. During the test, the second specimen contacts the first specimen by swinging. At this time, the reciprocating drive assembly drives the first specimen to move back and forth up and down to realize the abrasion test between the first specimen and the second specimen.

[0047] Preferably, two lever-type loading assemblies are provided on both sides of the reciprocating drive assembly, and a first sample is provided on both sides of the lower end of the reciprocating drive assembly. During the test, the two second samples of the two lever-type loading assemblies are symmetrically contacted with the two first samples on both sides, so that force balance is achieved, bending of the reciprocating drive assembly is avoided, and the abrasion test accuracy is higher.

[0048] Specifically, the reciprocating drive assembly includes a first drive assembly 208 and a reciprocating rod 205. The first drive assembly 208 is arranged on the upper platform plate 207. The output end of the first drive assembly 208 is connected to the reciprocating rod 205 through a first force sensor 209. The first force sensor 209 can detect the force of the reciprocating rod 205. The reciprocating rod 205 is inserted through the lower platform plate 204 and the test kettle cover 223, and a first sample fixture 203 is arranged at its lower end. The first sample fixture 203 is used to clamp the first sample. Two first samples are clamped on both sides of the first sample fixture 203 respectively. The first drive assembly 208 drives and connects the reciprocating rod 205 to drive the reciprocating rod 205 to reciprocate up and down. In this embodiment, the first drive assembly 208 is a servo electric cylinder. Of course, in other embodiments, it can also be a servo hydraulic cylinder to achieve higher frequency movement. This embodiment is not specifically limited.

[0049] Specifically, the lever-type loading assembly includes a second driving assembly 212 and a swing lever 216. A mounting frame 213 is provided at the side end of the first lifting platform. The second driving assembly 212 is arranged on the mounting frame 213. A second force sensor 211 is provided at the output end of the second driving assembly 212. A driving joint 210 is provided at the upper end of the swing lever 216. The second force sensor 211 is hinged to the swing lever 216 through the driving joint 210. The second force sensor 211 can detect the force of the swing lever 216. The upper platform plate 207 is provided with a fulcrum joint 214 at the fulcrum. The swing lever 216 is rotatably connected to the fulcrum joint 214. The swing lever 216 is inserted through the upper platform plate 207 and the test kettle cover 223 and a second sample fixture 217 is provided at its lower end. The second sample is clamped on the second sample fixture 217. The second driving assembly 212 drives the upper end of the swing lever 216 to swing around the fulcrum, so that the second sample at the lower end of the swing lever 216 can swing toward or away from the first sample, that is, a lever movement is formed. In this embodiment, the second driving assembly 212 is a servo electric cylinder, and of course in other embodiments, it can also be replaced by a servo hydraulic cylinder.

[0050] The second force sensor 211 can measure the pulling force of the output shaft of the second driving assembly 212, and the loading force of the second sample can be converted through lever ratio calculation.

[0051] An insulating sleeve 215 is also provided below the test kettle cover 223. When the test kettle cover 223 is closed on the test kettle 218, the insulating sleeve 215 also extends into the test kettle 218. The insulating sleeve 215 is used to cool the lower end space of the test kettle cover 223 to achieve the purpose of thermal insulation between the liquid lead-bismuth medium and the test kettle cover 223, and at the same time form a cold trap to prevent the high-temperature liquid lead-bismuth medium from volatilizing upward.

[0052] The test kettle cover 223 is provided with a swinging groove, and the swinging lever 216 is inserted into the swinging groove. The swinging lever 216 can swing in the swinging groove, and a sealing component is provided between the test kettle cover 223 and the swinging lever 216. The sealing component includes a bellows 224, a first sealing ring 225 and a second sealing ring 226. The bellows 224, the first sealing ring 225 and the second sealing ring 226 are all sleeved on the swinging lever 216. The first sealing ring 225 and the second sealing ring 226 are respectively arranged at both ends of the bellows 224, and the first sealing ring 225 is arranged between the bellows 224 and the test kettle cover 223. There is a certain gap between the swinging lever 216 and the swinging groove of the kettle cover 223 to achieve the giving way of the swinging lever 216 when it swings, that is, to give the swing The lever 216 has enough space to swing, and the second sealing ring 226 is arranged between the bellows 224 and the swing lever 216. The bellows 224 and the test kettle cover 223 are sealed by the first sealing ring 225, and the bellows 224 and the swing lever 216 are sealed by the second sealing ring 226. This allows the swing lever 216 to swing and the swing groove to be sealed at the same time, avoiding leakage of the medium, and realizing the test function of the swing lever 216 swinging, because the bellows 224 has good axial and radial deformation adaptability.

[0053] A thermocouple is also installed on the test kettle cover 223, and the thermocouple extends into the test kettle 218 to detect the temperature of the medium in the test kettle 218. A connecting pipeline 300 is also installed on the bottom of the test kettle 218 to achieve the transfer of the medium in the kettle.

[0054] Furthermore, a quick lock assembly is provided between the first platform plate 222 and the lower platform plate 204, and the quick lock assembly is used to lock the first platform plate 222 and the lower platform plate 204 after the test kettle cover 223 is covered on the test kettle 218. Specifically, the quick lock assembly includes an articulated screw 202, a locking nut and a matching groove 227, the articulated screw 202 is rotatably connected to the first platform plate 222, the matching groove 227 is provided at the side end of the lower platform plate 204, the articulated screw 202 can be rotatably provided in the matching groove 227, and the upper end of the articulated screw 202 is located above the matching groove 227, the locking nut is threadedly connected to the upper end of the articulated screw 202 and cooperates with the upper end surface of the matching groove 227 to lock the articulated screw 202, so that the first platform plate 222 and the lower platform plate 204 are locked with each other.

[0055] The melting main unit 100 includes a melting frame, a second lifting platform 107, a melting pot 111, a melting pot cover 110 and a second heating furnace 113. The melting pot 111 and the second heating furnace 113 are both arranged on the melting frame, and the melting pot 111 is arranged in the second heating furnace 113. The second lifting platform 107 is arranged on the melting frame and can move up and down along the melting frame.

[0056] Specifically, the melting rack includes a melting bottom plate 115, four first melting columns 112, a second platform plate 109, two second melting columns 105 and a melting top plate 106, which in turn include the melting bottom plate 115, the second platform plate 109 and the melting top plate 106 from bottom to top, the four first melting columns 112 are arranged between the melting bottom plate 115 and the second platform plate 109, and the two second melting columns 105 are arranged between the second platform plate 109 and the melting top plate 106. The second lifting platform 107 is slidably connected to the two second melting columns 105 through a linear bearing, and the second lifting platform 107 can slide up and down along the two second melting columns 105.

[0057] The second lifting platform 107 is driven by the fourth driving assembly to move up and down. Specifically, the fourth driving assembly includes a linear drive 101, a first sprocket 102, a second sprocket 103 and a chain 104. The linear drive 101 is arranged on one side of the melting frame. The first sprocket 102 and the second sprocket 103 are both arranged on the melting top plate 106, and the first sprocket 102 and the second sprocket 103 are respectively located above the linear drive 101 and the melting kettle 111. The chain 104 is wound around the first sprocket 102 and the second sprocket 103, and its two ends are respectively connected to the upper end of the linear drive 101 and the second lifting platform 107. The linear drive 101 drives the chain 104 to move and realizes the lifting of the second lifting platform 107 through the transmission of the first sprocket 102 and the second sprocket 103. The linear drive 101 can be an electric push rod, etc.

[0058] The upper end of the melting kettle 111 is fixedly connected to the second platform plate 109, and the lower part of the four first melting columns 112 is provided with a second support plate 114, the second support plate 114 is sleeved and fixedly connected to the two first melting columns 112, the melting kettle 111 and the second heating furnace 113 are both arranged on the second support plate 114, and the second support plate 114 is used to support the melting kettle 111 and the second heating furnace 113. The melting kettle cover 110 is arranged at the lower end of the second lifting platform 107 through the connecting column 108, and the second lifting platform 107 drives the melting kettle cover 110 to move up and down so that it leaves or covers the melting kettle 111.

[0059] The working process of the utility model is further described below:

[0060] First, the required lead-bismuth medium in the melting kettle 111 is melted in advance by the second heating furnace 113, and then the two first samples are clamped on the first sample fixture 203 at the lower end of the reciprocating rod 205, and the two second samples are clamped on the second sample fixture 217 at the lower ends of the two swing levers 216 respectively. Then the third driving component 206 drives the first lifting platform to descend, so that the test kettle cover 223 covers the test kettle 218, and the two first samples and the two second samples are extended into the test kettle 218. Then, the liquid lead-bismuth medium in the melting kettle 111 is transported to the test kettle 218 through the connecting pipeline 300, so that a liquid lead-bismuth environment is formed in the test kettle 218.

[0061] During the test, the second driving component 212 drives the swing lever 216 to swing, so that the second sample contacts the first sample with a certain pressure, and then the first driving component 208 drives the reciprocating rod 205 to reciprocate up and down, so that the first sample reciprocates up and down and rubs against the second sample.

[0062] The utility model is composed of a test host 200 and a melting host 100. The melting host 100 is used to melt the lead-bismuth metal medium in advance, so that the lead-bismuth metal medium is in a liquid state, and the medium temperature and oxygen content are stable. Then the test host 200 adopts a lever-type loading structure, the driving device is set at the upper end of the test kettle cover 223, the sample loading is set in the test kettle 218, and the sample wear test is carried out in the test kettle 218.

[0063] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A liquid lead-bismuth environment abrasion test device, used for abrasion test of samples, characterized in that: The test host comprises a test frame, a test kettle and a first lifting platform arranged on the test frame from bottom to top, a test kettle cover, a reciprocating drive assembly, and at least one lever-type loading assembly arranged on the first lifting platform, and liquid lead-bismuth medium is stored in the test kettle; The test kettle cover is arranged at the lower end of the first lifting platform, the reciprocating drive assembly and the lever-type loading assembly are both arranged through the test kettle cover and the lower ends are both arranged below the test kettle cover, and the lower ends of the reciprocating drive assembly and the lever-type loading assembly are respectively used to load the first sample and the second sample; the first lifting platform can move up and down along the test frame to drive the test kettle cover to move up and down so that it leaves or covers the test kettle, and drive the reciprocating drive assembly and the lever-type loading assembly to move up and down so that the lower ends extend into or leave the test kettle; The lever-type loading assembly is swingably connected to the first lifting platform via a fulcrum, and the lever-type loading assembly can swing around the fulcrum relative to the first lifting platform to drive the second specimen to swing toward or away from the first specimen; the reciprocating drive assembly can move the first specimen up and down, and during the test, the second specimen contacts the first specimen through swinging.

2. The liquid lead-bismuth environment abrasion test device according to claim 1, characterized in that: It comprises two lever-type loading assemblies, which are respectively arranged on both sides of the reciprocating drive assembly. A first specimen is respectively arranged on both sides of the lower end of the reciprocating drive assembly. During the test, the two second specimens of the two lever-type loading assemblies are respectively in contact with the two first specimens on both sides.

3. The liquid lead-bismuth environment abrasion test device according to claim 1, characterized in that: The reciprocating drive assembly includes a first drive assembly and a reciprocating rod. The reciprocating rod is inserted through the test kettle cover and its lower end is used to load the first sample. The first drive assembly is driven and connected to the reciprocating rod to drive the reciprocating rod to reciprocate up and down.

4. The liquid lead-bismuth environment abrasion test device according to claim 3, characterized in that: The lower end of the reciprocating rod is provided with a first sample clamp for clamping the first sample.

5. The liquid lead-bismuth environment abrasion test device according to claim 3, characterized in that: A first force sensor is provided between the output end of the first driving assembly and the reciprocating rod.

6. The liquid lead-bismuth environment abrasion test device according to claim 1, characterized in that: The lever-type loading assembly includes a second driving assembly and a swing lever. The swing lever is passed through the test kettle cover and its lower end is used to load the second sample. The second driving assembly is driven and connected to the upper end of the swing lever. The second driving assembly drives the upper end of the swing lever to drive it to swing around the fulcrum.

7. The liquid lead-bismuth environment abrasion test device according to claim 6, characterized in that: The first lifting platform is provided with a fulcrum joint at the fulcrum, and the swing lever is rotatably connected to the fulcrum joint; A driving joint is provided at the upper end of the swing lever, and the output end of the second driving component is hinged to the swing lever through the driving joint.

8. The liquid lead-bismuth environment abrasion test device according to claim 6, characterized in that: The test kettle cover is provided with a swing groove, the swing lever is inserted into the swing groove, the swing lever can swing in the swing groove, and the swing groove is provided with a sealing component between the test kettle cover and the swing lever; The sealing assembly includes a bellows, a first sealing ring and a second sealing ring. The bellows, the first sealing ring and the second sealing ring are all sleeved on the swing lever. The first sealing ring and the second sealing ring are respectively arranged at both ends of the bellows, and the first sealing ring is arranged between the bellows and the test kettle cover, and the second sealing ring is arranged between the bellows and the swing lever.

9. The liquid lead-bismuth environment abrasion test device according to claim 6, characterized in that: A second sample clamp for clamping the second sample is provided at the lower end of the swing lever.

10. The liquid lead-bismuth environment abrasion test device according to claim 6, characterized in that: A second force sensor is provided between the output end of the second driving assembly and the swing lever.

11. The liquid lead-bismuth environment abrasion test device according to claim 6, characterized in that: The first lifting platform is driven by two third driving assemblies to achieve up and down movement, and the two third driving assemblies are respectively arranged at two diagonal positions of the first lifting platform.

12. The liquid lead-bismuth environment abrasion test device according to claim 1, characterized in that: The test frame is provided with a first heating furnace, and the test kettle is arranged in the first heating furnace.

13. The liquid lead-bismuth environment abrasion test device according to claim 1, characterized in that: The invention comprises a melting main machine for melting lead-bismuth medium, wherein the melting main machine comprises a melting frame, a second lifting platform, a melting kettle, a melting kettle cover and a second heating furnace, wherein the melting kettle and the second heating furnace are both arranged on the melting frame, and the melting kettle is arranged in the second heating furnace; The second lifting platform is arranged on the melting frame and can move up and down along the melting frame. The melting kettle cover is arranged at the lower end of the second lifting platform. The second lifting platform drives the melting kettle cover to lift and lower it to leave or cover the melting kettle.

14. The liquid lead-bismuth environment abrasion test device according to claim 13, characterized in that: The second lifting platform is driven by a fourth driving assembly to move up and down.

15. The liquid lead-bismuth environment abrasion test device according to claim 13, characterized in that: It includes a connecting pipeline, which connects the melting kettle and the test kettle and is used to transport the liquid lead-bismuth medium in the melting kettle to the test kettle.

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