A graphite column resistivity testing device

Abstract

The invention belongs to the technical field of resistivity testing, and discloses a graphite column resistivity testing device, comprising a testing machine, wherein a clamping part is installed on one side of the testing machine; a staff member manually rotates a handle to drive a bidirectional threaded screw to rotate, and at the same time drives two clamping plates and a clamping plate to move in opposite directions to each other, and also drives the corresponding spur gear to rotate, drives the toothed plate, the frame plate and the sponge to move quickly to the other side of the corresponding clamping plate, and the process of the clamping plate pressing and contacting the sponge will cause the sponge to be squeezed by the suction force generated by the airbag, and the disinfectant water in the water tank is introduced into the sponge through a water pipe, so that the graphite powder contaminated on the surface of the clamping plate can be wiped off, and when the two clamping plates move and squeeze the connected arc plate rod, so that it slides horizontally on the two limit plates, it will drive the rotating wheel to rotate, so that it drives multiple glue sticks to rotate quickly and hit the spoon-shaped plate on one side, thereby generating a sound, and the ringing indicates that the best clamping force has been reached.

Description

Technical Field

[0001] The invention belongs to the technical field of resistivity testing, in particular to a graphite column resistivity testing device. Background Art

[0002] Graphite column is a columnar product made of graphite material, which has the characteristics of high temperature stability, conductivity, lubricity and chemical stability. It is widely used in metallurgy, chemical industry, machinery, electronics, aerospace and other fields, especially in harsh environments such as high temperature, high pressure and strong corrosion, where it can give full play to its unique advantages. In the existing technology, when testing the resistivity of graphite column, the four-probe method is generally used for testing, which has the advantages of high precision and the measurement accuracy is not affected by the electrode contact resistance;

[0003] Currently, during testing, graphite columns are a relatively fragile material, and special care must be taken during the clamping process to avoid damage to them, to ensure that the graphite columns do not slide or tilt due to unstable clamping during the test, thereby affecting the accuracy of the test. Excessive clamping force may cause damage to the surface of the graphite column or even deformation, while too little force may not guarantee the stability of the graphite column during the test. The prior art usually relies on the experience of the operator to perform careful debugging and clamping, which is inefficient and cannot completely guarantee that the graphite column will not be damaged during the clamping process. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a graphite column resistivity testing device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a graphite column resistivity test device, comprising a test machine, characterized in that: a clamping part is installed on one side of the test machine, the clamping part comprises a slot plate and two rectangular slots penetrating and opened on both sides of the slot plate, a guide clamping structure is provided on the slot plate, a measuring structure for real-time detection of the guide clamping structure in movement is also provided on one end of the slot plate, an engagement cleaning structure is also provided on both sides of the guide clamping structure, and two bell structures are respectively provided on the inner walls at both ends of the slot plate to warn the staff of the clamping strength of the graphite column;

[0006] The guide clamping structure includes a screw rod, two clamping plates and a clamping plate fixedly connected to one end of the two clamping plates, and the outer walls at both ends of the two clamping plates are fixedly connected with T-shaped clamping blocks, and the inner walls at both ends of the groove plate are provided with T-shaped sliding grooves that are slidably engaged with the two T-shaped clamping blocks;

[0007] The guide clamping structure also specifically includes a handle fixedly connected to one end of the screw rod, the screw rod specifically consists of two sections of threaded rod bodies in opposite directions, the screw rod and one end of the slot plate are connected through rotation, and the two sections of the screw rod are also threadedly connected to the two clamping plates respectively;

[0008] Wherein, the two meshing cleaning structures respectively include a water tank, a frame plate, a water pipe and a sponge that is slidably connected to one end of the frame plate, and one end of the sponge is slidably connected to one of the clamping plates;

[0009] The four bell structures respectively include a rotating wheel, a spoon-shaped plate, and a plurality of glue sticks fixedly connected to the outer wall of the rotating wheel, and the spoon-shaped plate and the plurality of glue sticks can be intermittently struck and fitted;

[0010] Each of the four bell structures further comprises an arc-shaped plate rod and a limit plate slidably connected to both sides of the arc-shaped plate rod, and one end of the two limit plates and the spoon-shaped plate are fixedly connected to the inner wall of the groove plate;

[0011] An arc panel is fixedly connected to one end of the arc plate rod, the arc panel and one of the clamping plates can be intermittently fitted and connected, and a spring is fixedly connected to the middle of one end of the arc panel and a limit plate;

[0012] The middle inner wall of the arc plate rod is fitted and slidably connected with the rotating wheel, and the other end of the rotating wheel is movably sleeved with the inner wall of the slot plate.

[0013] Preferably, the measuring structure includes an arrow fixedly connected to the outer wall of one end of the two clamps, and a scale is also fixedly connected to the outer wall of one end of the slot plate. The arrow and the two clamps are slidably connected to the slot plate.

[0014] Preferably, the two meshing cleaning structures further include a spur gear and a tooth plate meshingly connected to one end of the spur gear, and the tooth plate and the inner walls of the two rectangular grooves can be intermittently fitted and slidably connected.

[0015] Preferably, two T-shaped plates are fixedly connected to the outer wall of one end of the tooth plate, and two T-shaped grooves are provided in the groove plate and in the inner walls at both ends corresponding to the two T-shaped plates. The two T-shaped grooves are slidably engaged with the two T-shaped plates, and the bottom ends of the water tank and the frame plate are fixedly connected to one side of the top end of the tooth plate.

[0016] Preferably, one end of the water pipe passes through the frame and is fixedly connected to one end of a water tank. A water plug is tightly clamped in the top inner wall of the water tank. The water tank contains water for cleaning and disinfection. An air bag is fixedly connected to the other end of the water pipe. The two ends of the air bag are respectively fixedly connected to the inner wall of one end of the frame and the outer wall of the other end of the sponge.

[0017] Preferably, the spoon-shaped plate is made of metal material, and the two chuck plates are made of rubber material.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention drives the screw to rotate by manually rotating the handle by a staff member, and the screw with a bidirectional thread will simultaneously drive the two clamping plates and the chuck plate to move in opposite directions to each other. When the screw rotates, it will also drive the corresponding spur gear to rotate, driving the toothed plate to slide horizontally through the guide of multiple T-shaped plates in the second T-shaped slide groove, thereby driving the frame plate and the sponge to move quickly to the other side of the corresponding clamping plate. The moving process will make the sponge fit and wipe against the chuck plate, and the process of the chuck plate pressing and contacting the sponge will make the sponge squeezed to the suction force generated by the airbag, and the disinfecting water in the water tank will be introduced into the sponge through the water pipe to moisten the sponge, thereby wiping off the graphite powder contaminated on the surface of the chuck plate, avoiding adverse effects on the clamped graphite column when testing;

[0020] The present invention also drives the rotating wheel to rotate when the two clamping plates move and squeeze the connected arc-shaped plate rod, causing it to slide horizontally on the two limit plates, so that it drives multiple glue sticks to rotate rapidly and hit the spoon-shaped plate on one side, thereby generating a sound to warn the staff not to continue rotating and clamping. The ringing of the bell indicates that the optimal clamping force has been reached. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall top plan structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the slot plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the local structure of the clamping part of the present invention (part 1);

[0025] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 6It is a schematic diagram of the partial disassembly structure of the clamping part of the present invention;

[0027] Figure 7 It is a schematic diagram of the partial cross-section split structure of the clamping part of the present invention;

[0028] Figure 8 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at B in the middle;

[0029] Fig. 9 This is a schematic diagram of the local structure of the clamping part of the present invention (part 2).

[0030] In the figure:

[0031] 1. Testing machine;

[0032] 2. Clamping part; 21. Slot plate; 22. Rectangular groove; 23. Screw; 24. Handle; 25. Clamp plate; 26. Clamping plate; 27. T-shaped block; 28. T-shaped slideway 1; 29. ​​Arrow; 230. Scale; 231. Spur gear; 232. Tooth plate; 233. T-shaped plate; 234. T-shaped slideway 2; 235. Water tank; 236. Water plug; 237. Shelf plate; 238. Water pipe; 239. Airbag; 240. Sponge; 241. Arc plate rod; 242. Limit plate; 243. Rotor; 244. Glue stick; 245. Spoon-shaped plate; 246. Arc plate; 247. Spring. DETAILED DESCRIPTION

[0033] 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.

[0034] like Figures 1 to 9 As shown, the present invention provides a graphite column resistivity testing device, including a testing machine 1, a clamping part 2 is installed on one side of the testing machine 1, the clamping part 2 includes a slot plate 21 and two rectangular slots 22 that are through-opened on both sides of the slot plate 21, a guide clamping structure is provided on the slot plate 21, a measuring structure for real-time detection of the movement of the guide clamping structure is also provided on one end of the slot plate 21, an engaging cleaning structure is also provided on both sides of the guide clamping structure, and two bell structures are respectively provided on the inner walls at both ends of the slot plate 21 to warn the staff of the clamping force of the graphite column.

[0035] The above scheme is adopted: the staff manually rotates the handle 24 to drive the screw 23 to rotate, and the screw 23 with a bidirectional thread will simultaneously drive the two clamping plates 25 and the chuck plate 26 to move in opposite directions. When the screw 23 rotates, it will also drive the corresponding spur gear 231 to rotate, driving the toothed plate 232 to slide horizontally through the guide of the multiple T-shaped plates 233 in the T-shaped slide groove 234, thereby driving the frame plate 237 and the sponge 240 to move quickly to the other side of the corresponding clamping plate 25. The moving process will cause the sponge 240 to fit and wipe against the chuck plate 26, and the chuck plate 26 will press and contact the sponge 240. During the squeezing process, the sponge 240 will be squeezed to the suction force generated by the airbag 239, and the disinfectant water in the water tank 235 will be introduced into the sponge 240 through the water pipe 238 to moisten it, thereby wiping off the graphite powder on the surface of the chuck 26, and when the two clamping plates 25 move and squeeze the connected arc plate rod 241, causing it to slide horizontally on the two limit plates 242, it will drive the rotating wheel 243 to rotate, causing it to drive multiple glue sticks 244 to rotate rapidly and hit the spoon-shaped plate 245 on one side, thereby generating a sound, which is used to warn the staff not to continue rotating and clamping. The ringing of the bell indicates that the optimal clamping force has been reached.

[0036] One point that needs to be added is that the sponge 240 must be in a wet state when it contacts the chuck plate 26. This can be achieved through manual operation by the staff in advance. During the reciprocating passive movement of the frame plate 237, the surface of the end of the chuck plate 26 that contacts the graphite column will be wiped twice, once before contacting the graphite column and once after contacting the graphite column.

[0037] The guide clamping structure includes a screw rod 23, two clamping plates 25, and a clamping plate 26 fixedly connected to one end of the two clamping plates 25. T-shaped clamping blocks 27 are fixedly connected to the outer walls of both ends of the two clamping plates 25, and T-shaped sliding grooves 28 for slidingly engaging with the two T-shaped clamping blocks 27 are opened in the inner walls of both ends of the groove plate 21.

[0038] The guide clamping structure also specifically includes a handle 24 fixedly connected to one end of the screw rod 23. The screw rod 23 is specifically composed of two sections of threaded rod bodies in opposite directions. The screw rod 23 and one end of the groove plate 21 are rotatably connected through the rod body, and the two sections of the screw rod 23 are also threadedly connected to the two clamping plates 25 respectively. The two clamping plates 26 are specifically made of rubber material.

[0039] The above scheme is adopted: the staff manually rotates the handle 24 to drive the screw 23 to rotate, and the bidirectional threaded screw 23 will simultaneously drive the two clamping plates 25 and the clamping plate 26 to move in opposite directions to each other. During the movement, the two clamping plates 25 will pass through the T-shaped block 27 and slide in the T-shaped slide groove 28 for guidance, thereby ensuring the horizontal movement of the two clamping plates 25.

[0040] The measuring structure includes an arrow 29 fixedly connected to the outer wall of one end of the two clamps 25, and a scale 230 is also fixedly connected to the outer wall of one end of the slot plate 21. The arrow 29 and the two clamps 25 are both slidably connected to the slot plate 21.

[0041] With the above solution, the horizontal movement of the two clamping plates 25 will also drive the connected arrow 29 to point to the scale 230 provided on the slot plate 21 in real time, prompting the staff the moving distance of the two clamping plates 25 .

[0042] The two meshing cleaning structures respectively include a water tank 235, a frame 237, a water pipe 238, and a sponge 240 that is slidably connected to one end of the frame 237. One end of the sponge 240 and a clamping plate 26 can be slidably connected.

[0043] The two meshing cleaning structures also include a spur gear 231 and a tooth plate 232 meshing with one end of the spur gear 231. The tooth plate 232 and the inner walls of the two rectangular grooves 22 can be intermittently fitted and slidably connected. Two T-shaped plates 233 are fixedly connected to the outer wall of one end of the tooth plate 232. T-shaped slide grooves 234 are provided in the inner walls of the groove plate 21 and the two ends of the two T-shaped plates 233. The two T-shaped slide grooves 234 and the two T-shaped plates 233 are slidably connected. The water tank 235 and The bottom end of the frame 237 is fixedly connected to one side of the top of the tooth plate 232, one end of the water pipe 238 passes through one end of the frame 237, and is specifically fixedly connected to one end of the water tank 235. A water plug 236 is tightly clamped in the inner wall of the top of the water tank 235. The water tank 235 is used to hold clean disinfecting water. An air bag 239 is fixedly connected to the other end of the water pipe 238, and the two ends of the air bag 239 are respectively fixedly connected to the inner wall of one end of the frame 237 and the outer wall of the other end of the sponge 240.

[0044] The above scheme is adopted: when the screw 23 rotates, it will also drive the corresponding spur gear 231 to rotate, and drive the tooth plate 232 to slide horizontally through the guide of multiple T-shaped plates 233 in the T-shaped slide groove 234, thereby driving the frame plate 237 and the sponge 240 to move quickly to the other side of the corresponding clamping plate 25. The movement process will make the sponge 240 fit and wipe against the chuck plate 26. When the chuck plate 26 presses and contacts the sponge 240, the sponge 240 will shrink and slide to a certain extent in the frame plate 237, and then squeeze into the airbag 239. The airbag 239 is passively driven by the sponge 240 to expand and contract, and the suction force generated will introduce the disinfectant water in the water tank 235 into the sponge 240 through the water pipe 238 to moisten it, thereby wiping off the graphite powder on the surface of the chuck plate 26.

[0045] The four bell structures respectively include a rotating wheel 243, a spoon-shaped plate 245, and a plurality of glue sticks 244 surrounding and fixedly connected to the outer wall of the rotating wheel 243. The spoon-shaped plate 245 and the plurality of glue sticks 244 can be intermittently struck and fitted;

[0046] The four bell structures also respectively include an arc-shaped plate rod 241 and a limit plate 242 slidably connected to the two sides of the arc-shaped plate rod 241. One end of the two limit plates 242 and the spoon-shaped plate 245 are fixedly connected to the inner wall of the groove plate 21. An arc panel 246 is fixedly connected to one end of the arc-shaped plate rod 241. The arc panel 246 and a clamping plate 25 can be intermittently fitted and connected. One end of the arc panel 246 is combined with a spring 247 fixedly connected in the middle of a limit plate 242. The middle inner wall position of the arc-shaped plate rod 241 is fitted and slidably connected to the rotating wheel 243, and the other end of the rotating wheel 243 is movably connected to the inner wall of the groove plate 21. The spoon-shaped plate 245 is specifically made of metal.

[0047] The above scheme is adopted: when the two splints 25 move to a certain position, they will squeeze the connected arc plate rod 241 at the same time, causing it to slide horizontally on the two limit plates 242. During the horizontal movement of the arc plate rod 241, the rotating wheel 243 will be driven to rotate, causing it to drive multiple glue sticks 244 to rotate rapidly, hitting the spoon-shaped plate 245 on one side, thereby generating a sound, which is used to warn the staff not to continue rotating and clamping. The ringing indicates that the optimal clamping force has been reached. A spring 247 installed in a limit plate 242 and an arc plate 246 can drive the arc plate rod 241 to perform elastic reset when the splint 25 passively moves in the opposite direction.

[0048] The working principle and use process of the present invention are as follows: the worker holds the graphite column with one hand and manually rotates the handle 24 with the other hand to drive the screw 23 to rotate. The screw 23 with a bidirectional thread will simultaneously drive the two clamping plates 25 and the clamping plate 26 to move in opposite directions. During the movement, the two clamping plates 25 will pass through the T-shaped block 27 to guide and slide in the T-shaped slide groove 28 to ensure the horizontal movement of the two clamping plates 25. The horizontal movement of the two clamping plates 25 will also drive the connected arrow 29 to point to the scale 230 set on the slot plate 21 in real time, prompting the worker The operator can adjust the moving distance between the two clamping plates 25, and when the screw 23 rotates, it will also drive the corresponding spur gear 231 to rotate, driving the toothed plate 232 to slide horizontally through the guides of the multiple T-shaped plates 233 in the T-shaped slide groove 234, thereby driving the frame plate 237 and the sponge 240 to move quickly to the other side of the corresponding clamping plate 25. The moving process will make the sponge 240 fit and wipe against the clamping plate 26. Because there is a certain distance between the clamping plate 25 and the arc plate rod 241, when the arc plate rod 241 is passively translated, the clamping plate 25 will not move more than When the chuck plate 26 contacts the sponge 240 through the arc plate rod 241, the sponge 240 will shrink and slide in the frame plate 237 to a certain extent, and then squeeze the airbag 239. The airbag 239 is passively driven by the sponge 240 to expand and contract, and the suction force generated will lead the disinfectant water in the water tank 235 into the sponge 240 through the water pipe 238 to moisten the sponge 240, thereby wiping off the graphite powder on the surface of the chuck plate 26. When the two clamping plates 25 move to a certain position, they will squeeze the connected arc plate rod 241 at the same time. , so that it slides horizontally on the two limit plates 242. The horizontal movement process of the arc plate rod 241 will drive the rotating wheel 243 to rotate, so that it drives multiple glue sticks 244 to rotate rapidly, hitting the spoon-shaped plate 245 on one side, thereby generating a sound to warn the staff not to continue rotating and clamping. The ringing of the bell indicates that the optimal clamping force has been reached. A limit plate 242 and a spring 247 installed in the arc plate 246 can drive the arc plate rod 241 to perform elastic reset when the clamping plate 25 passively moves in the opposite direction, thereby improving the overall efficiency of testing the graphite column.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] 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 graphite column resistivity testing device, comprising a testing machine (1), characterized in that: A clamping portion (2) is installed on one side of the testing machine (1), the clamping portion (2) comprising a slot plate (21) and two rectangular slots (22) extending through the slot plate (21) on both sides, the slot plate (21) being provided with a guide clamping structure, one end of the slot plate (21) being provided with a measuring structure for real-time detection of the guide clamping structure during movement, both sides of the guide clamping structure being provided with meshing cleaning structures, and two bell structures being provided on the inner walls at both ends of the slot plate (21) for alerting staff members of the clamping strength of the graphite column; The guide clamping structure comprises a screw rod (23), two clamping plates (25) and a clamping plate (26) fixedly connected to one end of the two clamping plates (25); the outer walls at both ends of the two clamping plates (25) are fixedly connected with T-shaped clamping blocks (27); and the inner walls at both ends of the groove plate (21) are provided with T-shaped sliding grooves (28) that are slidably engaged with the two T-shaped clamping blocks (27); The guide clamping structure further comprises a handle (24) fixedly connected to one end of the screw rod (23); the screw rod (23) is specifically composed of two sections of threaded rod bodies in opposite directions; the screw rod (23) and one end of the slot plate (21) are connected through and rotationally connected, and the two sections of the screw rod (23) are respectively threadedly connected to the two clamping plates (25); Wherein, the two meshing cleaning structures each comprise a water tank (235), a frame plate (237), a water pipe (238), and a sponge (240) that is slidably connected to one end of the frame plate (237); one end of the sponge (240) is slidably connected to one of the chuck plates (26); The four bell structures each include a rotating wheel (243), a spoon-shaped plate (245), and a plurality of glue sticks (244) surrounding and fixedly connected to the outer wall of the rotating wheel (243); the spoon-shaped plate (245) and the plurality of glue sticks (244) can be intermittently struck and fitted; Each of the four bell structures further comprises an arc-shaped plate rod (241) and a limit plate (242) slidably connected to both sides of the arc-shaped plate rod (241); one end of the two limit plates (242) and the spoon-shaped plate (245) are fixedly connected to the inner wall of the groove plate (21); A curved panel (246) is fixedly connected to one end of the curved plate rod (241); the curved panel (246) and one of the clamping plates (25) can be intermittently fitted and connected; one end of the curved panel (246) is fixedly connected to a spring (247) in the middle of a limit plate (242); The middle inner wall of the arc-shaped plate rod (241) is fitted and slidably connected to the rotating wheel (243), and the other end of the rotating wheel (243) is movably sleeved to the inner wall of the slot plate (21).

2. The graphite column resistivity testing device according to claim 1, characterized in that: The measuring structure comprises an arrow (29) fixedly connected to the outer wall of one end of the two clamps (25), and a scale (230) is also fixedly connected to the outer wall of one end of the slot plate (21). The arrow (29) and the two clamps (25) are both slidably connected to the slot plate (21).

3. The graphite column resistivity testing device according to claim 2, characterized in that: The two meshing cleaning structures also respectively comprise a spur gear (231) and a tooth plate (232) meshingly connected to one end of the spur gear (231); the tooth plate (232) and the inner walls of the two rectangular grooves (22) can be intermittently fitted and slidably connected.

4. The graphite column resistivity testing device according to claim 3, characterized in that: Two T-shaped plates (233) are fixedly connected to the outer wall at one end of the tooth plate (232); two T-shaped slide grooves (234) are provided in the groove plate (21) and in the inner walls at both ends corresponding to the two T-shaped plates (233); the two T-shaped slide grooves (234) and the two T-shaped plates (233) are slidably engaged with each other; the bottom ends of the water tank (235) and the frame plate (237) are fixedly connected to one side of the top end of the tooth plate (232).

5. The graphite column resistivity testing device according to claim 4, characterized in that: One end of the water pipe (238) passes through the frame plate (237) and is fixedly connected to one end of the water tank (235). A water plug (236) is tightly engaged in the inner wall of the top end of the water tank (235). The water tank (235) contains water for cleaning and disinfection. An air bag (239) is fixedly connected to the other end of the water pipe (238). The two ends of the air bag (239) are respectively fixedly connected to the inner wall of one end of the frame plate (237) and the outer wall of the other end of the sponge (240).

6. The graphite column resistivity testing device according to claim 5, characterized in that: The spoon-shaped plate (245) is specifically made of a metal material, and the two chuck plates (26) are specifically made of a rubber material.

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