Refrigerating system of friction-wear testing machine in low-temperature vacuum hydrogen environment

Abstract

The invention relates to the technical field of refrigerating systems, and discloses a low-temperature vacuum hydrogen environment friction wear testing machine refrigerating system, which comprises a testing machine assembly, a moving assembly, an air cooling assembly, a fixed assembly and a heat dissipation assembly, and is characterized in that the testing machine assembly is used for testing, and the moving assembly is used for moving the testing machine assembly and the air cooling assembly; the air cooling assembly is used for refrigeration, the fixing assembly is used for fixing and limiting the heat dissipation assembly, the heat dissipation assembly is used for heat dissipation, and a first heat dissipation pipe, a flow dividing pipe and a third heat dissipation pipe are all spiral, so that the contact area with airflow is increased, and the heat dissipation efficiency is improved; the flow dividing pipe is perpendicular to the first heat dissipation pipe and the third heat dissipation pipe, the first heat dissipation pipe and the third heat dissipation pipe are distributed in a diverging mode, a three-dimensional distributed heat dissipation system is formed, distributed heat dissipation can be conveniently conducted on refrigerants in the heat dissipation assembly, meanwhile, the contact area with airflow is increased, the heat dissipation effect is enhanced, heat dissipation stability is conveniently maintained, and the service life of the heat dissipation assembly is prolonged. And the influence on experimental errors is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration systems, in particular to a refrigeration system for a low-temperature vacuum hydrogen environment friction and wear tester. Background Art

[0002] In engineering applications, friction and wear of materials is one of the most common failure forms. With the development of various amorphous alloys in engineering, it is particularly important to explore the wear resistance and wear mechanism of amorphous materials. However, the working conditions in engineering are complex and changeable. There is a lack of necessary research data on the wear process of amorphous alloys, so friction and wear testing machines are needed for inspection.

[0003] Low temperature vacuum friction and wear testing machine (hereinafter referred to as testing machine) simulates actual working conditions under certain pressure, certain speed, low temperature vacuum and special gas (hydrogen) protection environment, and conducts tests by controlling and changing load, speed, time and other parameters to evaluate the comprehensive friction and wear properties of materials such as friction coefficient and wear amount. It can meet the needs of users in various industries such as petrochemical, machinery, energy, metallurgy, aerospace and other industries in tribology research to develop and test various emerging materials development, new process research and other friction and wear tests.

[0004] The existing test machine refrigeration system has low heat dissipation efficiency and insufficient heat dissipation, which affects the refrigeration effect and causes deviations in the test results. Therefore, it is urgent to invent a low-temperature vacuum hydrogen environment friction and wear test machine refrigeration system to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a low-temperature vacuum hydrogen environment friction and wear tester refrigeration system.

[0006] (II) Technical solution In order to achieve the above-mentioned solution, the present invention provides the following technical solutions: a low-temperature vacuum hydrogen environment friction and wear test machine refrigeration system, including a test machine component, a moving component, an air-cooling component, a fixed component and a heat dissipation component, the test machine component is used for testing, the moving component is used for moving the test machine component and the air-cooling component, the air-cooling component is used for cooling, the fixed component is used for fixing and limiting the heat dissipation component, the heat dissipation component is used for heat dissipation, the test machine component includes a workbench, a moving component is fixedly installed at each of the four corners below the workbench, a test cabin is fixedly installed on one side above the workbench, and a test cabin is fixedly installed on the other side above the workbench. A connecting pipe is provided, and both ends of the connecting pipe are connected with the test cabin and the workbench respectively. A first connecting plate is provided on one side of the test cabin, and a first connecting block is fixedly installed at the four corners between the test cabin and the first connecting plate respectively. A magnetic fluid is fixedly installed in the middle position above the test cabin, and a loading motor is movably connected to the top of the magnetic fluid. A guide rod is provided on both sides of the magnetic fluid respectively. The moving component includes a second connecting plate and a fifth connecting plate, and a circle of evenly distributed first limiting rods is fixedly installed on the bottom of the fifth connecting plate. A circle of evenly distributed first connecting holes is opened on the second connecting plate, and the first limiting rod is movably installed in the first connecting hole.

[0007] Preferably, the air cooling component includes a first air inlet plate, a second air inlet plate, a first air outlet plate and a second air outlet plate, the first air inlet plate is located below the first air outlet plate, the second air inlet plate and the second air outlet plate are respectively fixedly installed on both sides of the first air inlet plate and the first air outlet plate, a seventh connecting plate is respectively fixedly installed between both sides of the second air inlet plate and the second air outlet plate, the first air inlet plate, the second air inlet plate, the first air outlet plate and the second air outlet plate are all provided with evenly distributed ventilation holes, and a fan plate is fixedly installed on the inner sides of the first air inlet plate, the second air inlet plate, the first air outlet plate and the second air outlet plate.

[0008] Preferably, the fixing assembly includes a pump, a second connecting rod is fixedly installed in the middle position above the pump, a connecting groove is provided between the pump and the second connecting rod, and a third connecting hole is provided on the top of the pump.

[0009] Preferably, the heat dissipation assembly includes an inlet pipe and an outlet pipe, both of which are fixedly installed in the middle position of the seventh connecting plate, both of which are fixedly connected to the first connecting plate, and both of which are interconnected with the test chamber.

[0010] Preferably, a first limit block is fixedly installed at the bottom of the first limit rod, the first limit block is located below the second connecting plate, a circle of evenly distributed springs is provided between the second connecting plate and the fifth connecting plate, the second connecting plate is sleeved on the outer side of the first limit rod, a steering shaft is movably installed at the middle position of the bottom of the second connecting plate, a third connecting plate is fixedly installed below the steering shaft, a fourth connecting plate is fixedly installed on both sides below the third connecting plate, and a roller is movably installed between the lower parts of the two fourth connecting plates.

[0011] Preferably, four evenly distributed sixth connecting plates are fixedly installed in the middle of the fan plate, two vertically distributed fixing rods are fixedly installed on the upper and lower parts of the sixth connecting plate respectively, a connecting disk is fixedly installed in the middle position of the fixing rod, a rotating shaft is movably installed between the two connecting disks, and a circle of evenly distributed fan blades is fixedly installed on the rotating shaft.

[0012] Preferably, the airflow directions of the fan blades in the fan plates on the first air inlet plate and the first air outlet plate are the same when the fan blades rotate. When the rotating shaft on the fan plate drives the fan blades to rotate, the airflow will enter from the first air inlet plate and flow out from the first air outlet plate. The airflow directions of the fan blades in the fan plates on the second air inlet plate and the second air outlet plate are the same when the fan blades rotate. When the rotating shaft on the fan plate drives the fan blades to rotate, the airflow will enter from the second air inlet plate and flow out from the second air outlet plate.

[0013] Preferably, a first connecting rod is fixedly connected between the sixth connecting plates on both sides of the fan plates on the first air inlet plate and the second air inlet plate, and the bottom of the pump is fixedly installed in the middle position of the first connecting rod in the fan plate above the first air inlet plate.

[0014] Preferably, a third connecting rod is fixedly installed on the second connecting rod near the second air inlet plate and near the second air outlet plate, respectively. The position of the third connecting rod near the second air outlet plate is higher than the position of the third connecting rod near the second air inlet plate, and a fourth connecting rod is fixedly installed in the middle of the third connecting rod and on the side away from the second connecting rod, respectively. The length of the fourth connecting rod on the side away from the second connecting rod is longer than the length of the fourth connecting rod in the middle of the third connecting rod, and the fourth connecting rod is provided with evenly distributed second connecting holes.

[0015] Preferably, the inlet pipe is connected to the first heat dissipation pipe, the first heat dissipation pipe is spiral-shaped, the inner side of the first heat dissipation pipe is fixedly connected to the fourth connecting rod in the middle of the third connecting rod close to the second air outlet plate, the outer side of the first heat dissipation pipe is fixedly connected to the fourth connecting rod away from the second connecting rod, the first heat dissipation pipe is fixedly installed in the second connecting hole, and the outlet pipe is connected to the third heat dissipation pipe, the third heat dissipation pipe is spiral-shaped, the inner side of the third heat dissipation pipe is fixedly connected to the fourth connecting rod in the middle of the third connecting rod close to the second air outlet plate, the outer side of the third heat dissipation pipe is fixedly connected to the fourth connecting rod away from the second connecting rod, and the third heat dissipation pipe is fixedly installed in the second connecting hole.

[0016] Preferably, a shunt pipe and a collector are respectively provided above and below the first heat dissipation tube and the third heat dissipation tube. The collector is fixedly mounted on the connecting groove and is connected to the pump. A connecting pipe is provided between the shunt pipe and the first heat dissipation tube. The connecting pipe is respectively connected to the first heat dissipation tube and the shunt pipe. The connecting pipe and the shunt pipe are fixedly mounted in the third connecting hole. The collector is connected to the third heat dissipation tube through the connecting pipe. A second heat dissipation tube is respectively connected between the two sides of the shunt pipe and the collector. The third heat dissipation tube is spiral. The second heat dissipation tubes are respectively located on both sides of the second connecting rod.

[0017] (III) Beneficial effects Compared with the prior art, the present invention provides a low-temperature vacuum hydrogen environment friction and wear tester refrigeration system, which has the following beneficial effects: 1. In the refrigeration system of the low-temperature vacuum hydrogen environment friction and wear tester, in the process that the refrigerant passes through the first heat dissipation pipe, the shunt pipe and the third heat dissipation pipe, since the airflow directions when the blades in the fan plates on the first air inlet plate and the first air outlet plate rotate are the same, when the rotating shaft on the fan plate drives the blades to rotate, the airflow will enter from the first air inlet plate and flow out from the first air outlet plate, and the airflow directions when the blades in the fan plates on the second air inlet plate and the second air outlet plate rotate are the same, when the rotating shaft on the fan plate drives the blades to rotate, the airflow will enter from the second air inlet plate and flow out from the second air outlet plate, thereby combining with the heat in the first heat dissipation pipe, the shunt pipe and the third heat dissipation pipe, so that the refrigerant is cooled down. Since the first heat dissipation pipe, the shunt pipe and the third heat dissipation pipe are all spiral, it is beneficial to increase the contact area with the airflow, so that the contact heat dissipation is more sufficient, thereby maintaining the stability of heat dissipation.

[0018] 2. The low-temperature vacuum hydrogen environment friction and wear tester refrigeration system, since the inner side of the first heat dissipation tube is fixedly connected to the fourth connecting rod in the middle of the third connecting rod near the second air outlet plate, the outer side of the first heat dissipation tube is fixedly connected to the fourth connecting rod far away from the second connecting rod, the first heat dissipation tube is fixedly installed in the second connecting hole, the outlet pipe is connected to the third heat dissipation tube, the third heat dissipation tube is spiral, the inner side of the third heat dissipation tube is fixedly connected to the fourth connecting rod in the middle of the third connecting rod near the second air outlet plate, the outer side of the third heat dissipation tube is fixedly connected to the fourth connecting rod far away from the second connecting rod, the third heat dissipation tube is fixedly installed in the second connecting hole, and the upper and lower parts between the first heat dissipation tube and the third heat dissipation tube are respectively A shunt pipe and a collector are provided. The collector is fixedly installed on the connecting groove and is connected with the pump. A connecting pipe is provided between the shunt pipe and the first heat dissipation pipe. The connecting pipe is respectively connected with the first heat dissipation pipe and the shunt pipe. The connecting pipe and the shunt pipe are fixedly installed in the third connecting hole. The collector is connected with the third heat dissipation pipe through the connecting pipe. A second heat dissipation pipe is respectively connected between the two sides of the shunt pipe and the collector. The third heat dissipation pipe is spiral. The second heat dissipation pipes are respectively located on both sides of the second connecting rod, thereby forming a three-dimensional distributed heat dissipation system, which is convenient for distributing and dissipating the refrigerant in the heat dissipation assembly, while increasing the contact area with the airflow, enhancing the heat dissipation effect, facilitating the maintenance of heat dissipation stability, and reducing the impact on experimental errors.

[0019] 3. The refrigeration system of the low-temperature vacuum hydrogen environment friction and wear tester has a first heat dissipation pipe close to the first air outlet plate and the second air outlet plate. Therefore, when dissipating heat, the heat of the first heat dissipation pipe is discharged fastest, thereby preventing heat from accumulating in the air-cooled component and affecting the heat dissipation effect of subsequent processes, thereby facilitating the improvement of heat dissipation efficiency. When the refrigerant passes through the shunt pipe and the third heat dissipation pipe, the temperature decreases, and the airflow will take away the heat in the shunt pipe and the third heat dissipation pipe when passing through, thereby facilitating the improvement of cooling efficiency.

[0020] 4. The refrigeration system of the low-temperature vacuum hydrogen environment friction and wear tester is convenient for the air-cooling component to dissipate heat from the heat dissipation component in a three-dimensional manner, because the shunt pipe is vertically distributed to the first heat dissipation pipe and the third heat dissipation pipe, and the first heat dissipation pipe and the third heat dissipation pipe are distributed separately, so as to promote the air-cooling component to take away the heat in the heat dissipation component, improve the heat dissipation efficiency and heat dissipation effect, and maintain stable heat dissipation.

[0021] 5. The refrigeration system of the low-temperature vacuum hydrogen environment friction and wear tester will drive the first limit rod to move in the first connecting hole when the fifth connecting plate is vibrated. At the same time, the fifth connecting plate will compress the spring between the fifth connecting plate and the second connecting plate, thereby providing a buffer for the vibration of the fifth connecting plate, maintaining the stability of the test machine components and the air-cooling components, facilitating the normal progress of the test, and ensuring the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the structure of the testing machine components of the present invention; Figure 3 This is a schematic diagram of the structure of the mobile assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the air cooling component of the present invention; Figure 5 This is a schematic diagram of the internal structure of the air cooling component of the present invention; Figure 6 This is a schematic diagram of the structure of the first air inlet plate of the present invention; Figure 7 This is a schematic diagram of the structure of the second air inlet plate of the present invention; Figure 8 This is a schematic diagram of the structure of the sixth connecting plate of the present invention; Fig. 9 It is a schematic diagram of the structure of the fixing assembly of the present invention; Fig.10 It is a schematic diagram of the connection structure of the fixing component and the heat dissipation component of the present invention; Fig.11 It is a schematic diagram of the structure of the heat dissipation component of the present invention.

[0023] In the figure: 100, test machine assembly; 101, workbench; 102, test chamber; 103, connecting pipe; 104, first connecting block; 105, first connecting plate; 106, magnetic fluid; 107, guide rod; 108, loading motor; 200, moving assembly; 201, second connecting plate; 202, first connecting hole; 203, steering shaft; 204, third connecting plate; 205, fourth connecting plate; 206, roller; 207, first limiting rod; 208, fifth connecting plate; 209, first limiting block; 210, spring; 300, air cooling assembly; 301, first air inlet plate; 302, second air inlet plate; 303, first air outlet plate; 304, second air outlet Plate; 305, fan plate; 306, sixth connecting plate; 307, fixing rod; 308, connecting plate; 309, rotating shaft; 310, fan blade; 311, ventilation hole; 312, first connecting rod; 313, seventh connecting plate; 400, fixing assembly; 401, pump; 402, second connecting rod; 403, connecting groove; 404, third connecting rod; 405, fourth connecting rod; 406, second connecting hole; 407, third connecting hole; 500, heat dissipation assembly; 501, inlet pipe; 502, first heat dissipation pipe; 503, connecting pipe; 504, shunt pipe; 505, second heat dissipation pipe; 506, confluence pipe; 507, third heat dissipation pipe; 508, outlet pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 11 A low-temperature vacuum hydrogen environment friction and wear test machine refrigeration system includes a test machine component 100, a moving component 200, an air cooling component 300, a fixed component 400 and a heat dissipation component 500. The test machine component 100 is used for testing, the moving component 200 is used to move the test machine component 100 and the air cooling component 300, the air cooling component 300 is used for cooling, the fixed component 400 is used to fix and limit the heat dissipation component 500, and the heat dissipation component 500 is used for heat dissipation. The test machine component 100 includes a workbench 101, and a moving component 200 is fixedly installed at each of the four corners below the workbench 101. A test cabin 102 is fixedly installed on one side above the workbench 101, and a connecting pipe 103 is provided on the other side above the workbench 101. The connecting pipe 103 has two ends. The ends are respectively connected with the test cabin 102 and the workbench 101, a first connecting plate 105 is provided on one side of the test cabin 102, and a first connecting block 104 is fixedly installed at the four corners between the test cabin 102 and the first connecting plate 105, a magnetic fluid 106 is fixedly installed in the middle position above the test cabin 102, a loading motor 108 is movably connected to the top of the magnetic fluid 106, and a guide rod 107 is provided on both sides of the magnetic fluid 106, the moving component 200 includes a second connecting plate 201 and a fifth connecting plate 208, a circle of evenly distributed first limiting rods 207 are fixedly installed on the bottom of the fifth connecting plate 208, a circle of evenly distributed first connecting holes 202 are opened on the second connecting plate 201, and the first limiting rods 207 are movably installed in the first connecting holes 202.

[0026] The air cooling component 300 includes a first air inlet plate 301, a second air inlet plate 302, a first air outlet plate 303 and a second air outlet plate 304. The first air inlet plate 301 is located below the first air outlet plate 303. The second air inlet plate 302 and the second air outlet plate 304 are respectively fixedly installed on both sides of the first air inlet plate 301 and the first air outlet plate 303. A seventh connecting plate 313 is respectively fixedly installed between both sides of the second air inlet plate 302 and the second air outlet plate 304. The first air inlet plate 301, the second air inlet plate 302, the first air outlet plate 303 and the second air outlet plate 304 are all provided with evenly distributed ventilation holes 311. A fan plate 305 is fixedly installed on the inner side of the first air inlet plate 301, the second air inlet plate 302, the first air outlet plate 303 and the second air outlet plate 304.

[0027] The fixing assembly 400 includes a pump 401 , a second connecting rod 402 is fixedly installed in the middle position above the pump 401 , a connecting groove 403 is provided between the pump 401 and the second connecting rod 402 , and a third connecting hole 407 is provided on the top of the pump 401 .

[0028] The heat dissipation assembly 500 includes an inlet pipe 501 and an outlet pipe 508, and the inlet pipe 501 and the outlet pipe 508 are both fixedly installed in the middle position of the seventh connecting plate 313, and the inlet pipe 501 and the outlet pipe 508 are both fixedly connected to the first connecting plate 105, and the inlet pipe 501 and the outlet pipe 508 are both interconnected with the test chamber 102.

[0029] A first limit block 209 is fixedly installed at the bottom of the first limit rod 207, and the first limit block 209 is located below the second connecting plate 201. A circle of evenly distributed springs 210 is provided between the second connecting plate 201 and the fifth connecting plate 208. The second connecting plate 201 is sleeved on the outside of the first limit rod 207. A steering shaft 203 is movably installed in the middle position of the bottom of the second connecting plate 201. A third connecting plate 204 is fixedly installed below the steering shaft 203. A fourth connecting plate 205 is fixedly installed on both sides below the third connecting plate 204, and a roller 206 is movably installed between the lower parts of the two fourth connecting plates 205.

[0030] Four evenly distributed sixth connecting plates 306 are fixedly installed in the middle of the fan plate 305, and two vertically distributed fixing rods 307 are fixedly installed on the upper and lower parts of the sixth connecting plate 306 respectively. A connecting disk 308 is fixedly installed in the middle position of the fixing rod 307, and a rotating shaft 309 is movably installed between the two connecting disks 308. A circle of evenly distributed fan blades 310 is fixedly installed on the rotating shaft 309.

[0031] The airflow directions of the blades 310 in the fan plates 305 on the first air inlet plate 301 and the first air outlet plate 303 when they rotate are the same. When the rotating shaft 309 on the fan plate 305 drives the blades 310 to rotate, the airflow will enter from the first air inlet plate 301 and flow out from the first air outlet plate 303. The airflow directions of the blades 310 in the fan plates 305 on the second air inlet plate 302 and the second air outlet plate 304 when they rotate are the same. When the rotating shaft 309 on the fan plate 305 drives the blades 310 to rotate, the airflow will enter from the second air inlet plate 302 and flow out from the second air outlet plate 304.

[0032] The first connecting rod 312 is fixedly connected between the sixth connecting plates 306 on both sides of the fan plates 305 on the first air inlet plate 301 and the second air inlet plate 302, and the bottom of the pump 401 is fixedly installed in the middle position of the first connecting rod 312 in the fan plate 305 above the first air inlet plate 301.

[0033] A third connecting rod 404 is fixedly installed on the second connecting rod 402 on one side close to the second air inlet plate 302 and on the second air outlet plate 304, respectively. The position of the third connecting rod 404 close to the second air outlet plate 304 is higher than the position of the third connecting rod 404 close to the second air inlet plate 302. A fourth connecting rod 405 is fixedly installed in the middle of the third connecting rod 404 and on the side away from the second connecting rod 402, respectively. The length of the fourth connecting rod 405 on the side away from the second connecting rod 402 is longer than the length of the fourth connecting rod 405 in the middle of the third connecting rod 404, and the fourth connecting rod 405 is provided with evenly distributed second connecting holes 406.

[0034] The inlet pipe 501 is connected to the first heat dissipation pipe 502, which is spiral-shaped. The inner side of the first heat dissipation pipe 502 is fixedly connected to the fourth connecting rod 405 in the middle of the third connecting rod 404 close to the second air outlet plate 304, and the outer side of the first heat dissipation pipe 502 is fixedly connected to the fourth connecting rod 405 on the side away from the second connecting rod 402. The first heat dissipation pipe 502 is fixedly installed in the second connecting hole 406, and the outlet pipe 508 is connected to the third heat dissipation pipe 507, which is spiral-shaped. The inner side of the third heat dissipation pipe 507 is fixedly connected to the fourth connecting rod 405 in the middle of the third connecting rod 404 close to the second air outlet plate 304, and the outer side of the third heat dissipation pipe 507 is fixedly connected to the fourth connecting rod 405 on the side away from the second connecting rod 402, and the third heat dissipation pipe 507 is fixedly installed in the second connecting hole 406.

[0035] A shunt pipe 504 and a collector pipe 506 are respectively provided above and below the first heat dissipation tube 502 and the third heat dissipation tube 507. The collector pipe 506 is fixedly installed on the connecting groove 403 and is connected to the pump 401. A connecting pipe 503 is provided between the shunt pipe 504 and the first heat dissipation tube 502. The connecting pipe 503 is respectively connected to the first heat dissipation tube 502 and the shunt pipe 504. The connecting pipe 503 and the shunt pipe 504 are fixedly installed in the third connecting hole 407. The collector pipe 506 and the third heat dissipation tube 507 are connected through the connecting pipe 503. A second heat dissipation tube 505 is respectively connected between the two sides of the shunt pipe 504 and the collector pipe 506. The third heat dissipation tube 507 is spiral. The second heat dissipation tubes 505 are respectively located on both sides of the second connecting rod 402.

[0036] When in use, the test machine assembly 100 and the air cooling assembly 300 are moved to appropriate positions. When the test machine assembly 100 and the air cooling assembly 300 move, the fifth connecting plate 208 will be driven to move, the fifth connecting plate 208 will be driven to move the first limiting rod 207, the first limiting rod 207 will be driven to move the second connecting plate 201, the second connecting plate 201 will be driven to move the steering shaft 203, the steering shaft 203 will be driven to move the third connecting plate 204, the third connecting plate 204 will be driven to move the fourth connecting plate 205, When the fourth connecting plate 205 moves, it will drive the roller 206 between the fourth connecting plates 205 to rotate. When the fifth connecting plate 208 is vibrated, it will drive the first limiting rod 207 to move in the first connecting hole 202. At the same time, the fifth connecting plate 208 will compress the spring 210 between the fifth connecting plate 208 and the second connecting plate 201, thereby providing a buffer for the vibration of the fifth connecting plate 208, maintaining the stability of the testing machine assembly 100 and the air cooling assembly 300, facilitating the normal progress of the test, and ensuring the accuracy of the test data.

[0037] Before the test starts, the shaft 309 in the fan plate 305 on the first air inlet plate 301, the second air inlet plate 302, the first air outlet plate 303 and the second air outlet plate 304 is driven to rotate. When the shaft 309 rotates, the fan blades 310 are driven to rotate. Since the airflow directions of the fan blades 310 in the fan plates 305 on the first air inlet plate 301 and the first air outlet plate 303 are the same when they rotate, when the shaft 309 on the fan plate 305 drives the fan blades 310 to rotate, the airflow will enter from the first air inlet plate 301 and flow out from the first air outlet plate 303. The airflow directions of the fan blades 310 in the fan plates 305 on the second air inlet plate 302 and the second air outlet plate 304 are the same when they rotate. When the shaft 309 on the fan plate 305 drives the fan blades 310 to rotate, the airflow will enter from the second air inlet plate 302 and flow out from the second air outlet plate 304, and the pump 401 is started at the same time.

[0038] The pump 401 will make the refrigerant in the test chamber 102 flow into the first heat dissipation pipe 502 through the inlet pipe 501, and the refrigerant in the first heat dissipation pipe 502 will enter the diverter pipe 504 through the connecting pipe 503 and be diverted to both sides of the diverter pipe 504. The refrigerant in the diverter pipe 504 will flow into the second heat dissipation pipe 505 below the diverter pipe 504 respectively, and the refrigerant in the second heat dissipation pipe 505 will flow to the converging pipe 506 to converge and flow into the third heat dissipation pipe 507, and then return to the test chamber 102 through the outlet pipe 508 after passing through the third heat dissipation pipe 507, so as to cool the vacuum environment of the test chamber 102.

[0039] In the process of the refrigerant passing through the first heat dissipation tube 502, the shunt tube 504 and the third heat dissipation tube 507, since the airflow directions of the fan blades 310 in the fan plate 305 on the first air inlet plate 301 and the first air outlet plate 303 are the same when they rotate, when the rotating shaft 309 on the fan plate 305 drives the fan blades 310 to rotate, the airflow will enter from the first air inlet plate 301 and flow out from the first air outlet plate 303, and the airflow will enter from the first air inlet plate 301 and flow out from the first air outlet plate 303 when the fan blades 310 in the fan plate 305 on the second air inlet plate 302 and the second air outlet plate 304 rotate. The airflow direction is the same. When the rotating shaft 309 on the fan plate 305 drives the fan blades 310 to rotate, the airflow will enter from the second air inlet plate 302 and flow out from the second air outlet plate 304, thereby combining with the heat in the first heat dissipation tube 502, the shunt tube 504 and the third heat dissipation tube 507 to cool the refrigerant. Since the first heat dissipation tube 502, the shunt tube 504 and the third heat dissipation tube 507 are all spiral, it is beneficial to increase the contact area with the airflow, making the contact heat dissipation more sufficient, thereby maintaining the stability of heat dissipation.

[0040] Since the inner side of the first heat dissipation tube 502 is fixedly connected to the fourth connecting rod 405 in the middle of the third connecting rod 404 close to the second air outlet plate 304, the outer side of the first heat dissipation tube 502 is fixedly connected to the fourth connecting rod 405 away from the second connecting rod 402, the first heat dissipation tube 502 is fixedly installed in the second connecting hole 406, the outlet pipe 508 is connected to the third heat dissipation tube 507, the third heat dissipation tube 507 is spiral, the inner side of the third heat dissipation tube 507 is fixedly connected to the fourth connecting rod 405 in the middle of the third connecting rod 404 close to the second air outlet plate 304, the outer side of the third heat dissipation tube 507 is fixedly connected to the fourth connecting rod 405 away from the second connecting rod 402, the third heat dissipation tube 507 is fixedly installed in the second connecting hole 406, and a shunt pipe 504 and a converging pipe 504 are respectively provided above and below the first heat dissipation tube 502 and the third heat dissipation tube 507. Tube 506, the manifold 506 is fixedly installed on the connecting groove 403 and is connected to the pump 401, a connecting pipe 503 is provided between the shunt pipe 504 and the first heat dissipation pipe 502, the connecting pipe 503 is respectively connected to the first heat dissipation pipe 502 and the shunt pipe 504, the connecting pipe 503 and the shunt pipe 504 are fixedly installed in the third connecting hole 407, the manifold 506 is connected to the third heat dissipation pipe 507 through the connecting pipe 503, and a second heat dissipation pipe 505 is respectively connected between the two sides of the shunt pipe 504 and the manifold 506, the third heat dissipation pipe 507 is spiral, and the second heat dissipation pipe 505 is respectively located on both sides of the second connecting rod 402, thereby forming a three-dimensional distributed heat dissipation system, which is convenient for distributing the heat dissipation of the refrigerant in the heat dissipation component 500, while increasing the contact area with the airflow, enhancing the heat dissipation effect, facilitating the maintenance of the stability of heat dissipation, and reducing the influence on experimental errors.

[0041] Since the first heat dissipation pipe 502 is close to the first air outlet plate 303 and the second air outlet plate 304, the heat of the first heat dissipation pipe 502 is discharged fastest during heat dissipation, thereby preventing heat from accumulating in the air-cooling component 300 and affecting the heat dissipation effect of subsequent processes, thereby facilitating the improvement of heat dissipation efficiency. When the refrigerant passes through the bypass pipe 504 and the third heat dissipation pipe 507, the temperature decreases, and the air flow will take away the heat in the bypass pipe 504 and the third heat dissipation pipe 507 when passing through, thereby facilitating the improvement of cooling efficiency.

[0042] Since the shunt pipe 504 is vertically distributed to the first heat dissipation pipe 502 and the third heat dissipation pipe 507, and the first heat dissipation pipe 502 and the third heat dissipation pipe 507 are distributed separately, it is convenient for the air cooling component 300 to perform three-dimensional heat dissipation on the heat dissipation component 500, and it is convenient for the air cooling component 300 to take away the heat in the heat dissipation component 500, thereby improving the heat dissipation efficiency and heat dissipation effect and maintaining stable heat dissipation.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-temperature vacuum hydrogen environment friction and wear test machine refrigeration system, comprising a test machine component (100), a moving component (200), an air cooling component (300), a fixed component (400) and a heat dissipation component (500), wherein the test machine component (100) is used for conducting a test, the moving component (200) is used for moving the test machine component (100) and the air cooling component (300), the air cooling component (300) is used for cooling, the fixed component (400) is used for fixing and limiting the heat dissipation component (500), and the heat dissipation component (500) is used for heat dissipation, and the test machine component (100) comprises a workbench (101), and a moving component (200) is fixedly installed at each of the four corners below the workbench (101). A test chamber (102) is fixedly installed on one side above the workbench (101), a connecting pipe (103) is provided on the other side above the workbench (101), and both ends of the connecting pipe (103) are respectively connected to the test chamber (102) and the workbench (101), a first connecting plate (105) is provided on one side of the test chamber (102), and a first connecting block (104) is fixedly installed at each of the four corners between the test chamber (102) and the first connecting plate (105), a magnetic fluid (106) is fixedly installed at the middle position above the test chamber (102), a loading motor (108) is movably connected to the top of the magnetic fluid (106), and a guide rod (107) is provided on each side of the magnetic fluid (106), characterized in that: The moving assembly (200) comprises a second connecting plate (201) and a fifth connecting plate (208); a circle of evenly distributed first limiting rods (207) are fixedly mounted on the bottom of the fifth connecting plate (208); a circle of evenly distributed first connecting holes (202) are formed on the second connecting plate (201); and the first limiting rods (207) are movably mounted in the first connecting holes (202); The air cooling assembly (300) comprises a first air inlet plate (301), a second air inlet plate (302), a first air outlet plate (303) and a second air outlet plate (304), wherein the first air inlet plate (301) is located below the first air outlet plate (303), the second air inlet plate (302) and the second air outlet plate (304) are respectively fixedly installed at two sides between the first air inlet plate (301) and the first air outlet plate (303), and the second air inlet plate (302) and the second air outlet plate (304) are respectively fixedly installed at two sides between the first air inlet plate (301) and the first air outlet plate (303). A seventh connecting plate (313) is fixedly installed between the two sides of the first air inlet plate (301), the second air inlet plate (302), the first air outlet plate (303) and the second air outlet plate (304), and evenly distributed ventilation holes (311) are provided on the first air inlet plate (301), the second air inlet plate (302), the first air outlet plate (303) and the second air outlet plate (304). A fan plate (305) is fixedly installed on the inner side of the first air inlet plate (301), the second air inlet plate (302), the first air outlet plate (303) and the second air outlet plate (304); The fixing assembly (400) comprises a pump (401), a second connecting rod (402) is fixedly installed in the middle position above the pump (401), a connecting groove (403) is provided between the pump (401) and the second connecting rod (402), and a third connecting hole (407) is provided at the top of the pump (401); The heat dissipation assembly (500) comprises an inlet pipe (501) and an outlet pipe (508); the inlet pipe (501) and the outlet pipe (508) are both fixedly mounted at a middle position of the seventh connecting plate (313); the inlet pipe (501) and the outlet pipe (508) are both fixedly connected to the first connecting plate (105); and the inlet pipe (501) and the outlet pipe (508) are both in communication with the test chamber (102).

2. A low temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 1, characterized in that: A first limiting block (209) is fixedly installed at the bottom of the first limiting rod (207), the first limiting block (209) is located below the second connecting plate (201), a circle of evenly distributed springs (210) is provided between the second connecting plate (201) and the fifth connecting plate (208), the second connecting plate (201) is sleeved on the outside of the first limiting rod (207), a steering shaft (203) is movably installed at the middle position of the bottom of the second connecting plate (201), a third connecting plate (204) is fixedly installed below the steering shaft (203), a fourth connecting plate (205) is fixedly installed on both sides below the third connecting plate (204), and a roller (206) is movably installed between the lower parts of the two fourth connecting plates (205).

3. The low-temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 1, characterized in that: Four evenly distributed sixth connecting plates (306) are fixedly installed in the middle of the fan-mounting plate (305); two vertically distributed fixing rods (307) are fixedly installed at the upper and lower parts of the sixth connecting plate (306); a connecting plate (308) is fixedly installed in the middle of the fixing rod (307); a rotating shaft (309) is movably installed between the two connecting plates (308); and a circle of evenly distributed fan blades (310) is fixedly installed on the rotating shaft (309).

4. The low-temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 3, characterized in that: The airflow directions of the fan blades (310) in the fan plates (305) on the first air inlet plate (301) and the first air outlet plate (303) are the same when the airflow directions are rotated. When the rotating shaft (309) on the fan plate (305) drives the fan blades (310) to rotate, the airflow enters from the first air inlet plate (301) and flows out from the first air outlet plate (303). The airflow directions of the fan blades (310) in the fan plates (305) on the second air inlet plate (302) and the second air outlet plate (304) are the same when the airflow directions of the fan blades (310) in the fan plates (305) on the second air inlet plate (302) and the second air outlet plate (304) are rotated. When the rotating shaft (309) on the fan plate (305) drives the fan blades (310) to rotate, the airflow enters from the second air inlet plate (302) and flows out from the second air outlet plate (304).

5. A low temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 4, characterized in that: A first connecting rod (312) is fixedly connected between the sixth connecting plates (306) on both sides of the fan plates (305) on the first air inlet plate (301) and the second air inlet plate (302), and the bottom of the pump (401) is fixedly mounted at a middle position of the first connecting rod (312) in the fan plate (305) above the first air inlet plate (301).

6. The low-temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 5, characterized in that: A third connecting rod (404) is fixedly mounted on one side of the second connecting rod (402) close to the second air inlet plate (302) and on one side close to the second air outlet plate (304), respectively; the position of the third connecting rod (404) close to the second air outlet plate (304) is higher than the position of the third connecting rod (404) close to the second air inlet plate (302); a fourth connecting rod (405) is fixedly mounted in the middle of the third connecting rod (404) and on one side away from the second connecting rod (402), respectively; the length of the fourth connecting rod (405) on the side away from the second connecting rod (402) is longer than the length of the fourth connecting rod (405) in the middle of the third connecting rod (404), and the fourth connecting rod (405) is provided with evenly distributed second connecting holes (406).

7. A low temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 6, characterized in that: The inlet pipe (501) is connected to a first heat dissipation pipe (502), the first heat dissipation pipe (502) is spiral-shaped, the inner side of the first heat dissipation pipe (502) is fixedly connected to a fourth connecting rod (405) in the middle of a third connecting rod (404) on a side close to the second air outlet plate (304), the outer side of the first heat dissipation pipe (502) is fixedly connected to a fourth connecting rod (405) on a side away from the second connecting rod (402), and the first heat dissipation pipe (502) is fixedly installed in the second connecting hole (406). The outlet pipe (508) is connected to a third heat dissipation pipe (507), the third heat dissipation pipe (507) is spiral-shaped, the inner side of the third heat dissipation pipe (507) is fixedly connected to a fourth connecting rod (405) in the middle of a third connecting rod (404) close to a side of the second air outlet plate (304), the outer side of the third heat dissipation pipe (507) is fixedly connected to a fourth connecting rod (405) on a side away from the second connecting rod (402), and the third heat dissipation pipe (507) is fixedly installed in the second connecting hole (406).

8. The low-temperature vacuum hydrogen environment friction and wear tester refrigeration system according to claim 7, characterized in that: A shunt pipe (504) and a converging pipe (506) are respectively provided above and below the first heat dissipation pipe (502) and the third heat dissipation pipe (507). The converging pipe (506) is fixedly mounted on the connection groove (403) and is connected to the pump (401). A connecting pipe (503) is provided between the shunt pipe (504) and the first heat dissipation pipe (502). The connecting pipe (503) is respectively connected to the first heat dissipation pipe (502) and the shunt pipe (504). The connecting pipe (503) and the shunt pipe (504) are fixedly mounted in the third connection hole (407). The converging pipe (506) and the third heat dissipation pipe (507) are connected via the connecting pipe (503). A second heat dissipation pipe (505) is respectively connected between the two sides of the shunt pipe (504) and the converging pipe (506). The third heat dissipation pipe (507) is spiral-shaped. The second heat dissipation pipes (505) are respectively located on both sides of the second connecting rod (402).

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