A lead storage battery plate strength testing device

Abstract

The application discloses a kind of lead storage battery pole plate strength detection device, belongs to storage battery detection technical field.It mainly aims at the problem that different special equipment needs to be used when existing product is detected in many aspects of strength, proposes the following technical scheme, including detector main body, the top of the detector main body is provided with the pressure unit for applying test force and the load unit for supporting the material to be measured.The load unit of the present application replaces the existing three-point bending tester structure, and then uses the pressure unit of the device to realize the integration of bending strength, compressive strength and bonding strength detection, realize one machine multi-use, so as to reduce the investment of equipment cost, reduce the occupation of space, and the two support components in the load unit for matching the bending strength detection have self-adaptive floating support effect, replace the corresponding rigid support, for matching the bending deformation track of pole plate, eliminate additional stress and friction error.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, specifically a device for testing the strength of lead-acid battery plates. Background Technology

[0002] The plates of a storage battery are an important component of the battery, determining important indicators such as starting performance and lifespan. The plates consist of grids and active materials. After a curing process, the grids and active materials are bonded together. The mechanical strength of the plates determines their performance. To ensure the pass rate of the plates, various strength tests are conducted, such as bending strength, tensile strength, bonding strength, drop / impact strength, and compressive strength.

[0003] Currently, there are many technical pain points in the testing devices and methods for electrode strength in the industry, making it difficult to balance testing accuracy, efficiency, and electrode protection. In particular, there are significant deficiencies in the rationality of the support structure for three-point bending testing and the degree of integration of multi-strength testing. Specific problems are as follows: Firstly, in the three-point bending strength testing of electrode plates, existing devices generally adopt a fixed rigid support structure, and the support points cannot adapt to the dynamic deformation trajectory of the electrode plate during bending. During testing, the fixed support and the edge of the electrode plate will generate additional shear stress and frictional resistance, causing the bending stress field to deviate from the ideal pure bending state, resulting in large dispersion and insufficient accuracy of the test data. At the same time, the rigid support is prone to pinching and damaging the edge of the electrode plate, causing the lead paste to fall off. For the more brittle green electrode plates (which have not been formed after curing), the damage rate is even higher, which in turn affects the authenticity of the test results. Secondly, existing testing devices have limited functionality and cannot achieve integrated testing of multiple strengths. Testing flexural strength, compressive strength, and local pressure-type bond strength requires the use of multiple specialized devices and multiple electrode plate samples, which not only results in high equipment costs and large space requirements but also low testing efficiency. Furthermore, frequent changes to the force application end and support fixture are necessary for different testing items, which can easily lead to positioning deviations during the switching process, further affecting the testing accuracy. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, this invention provides a lead-acid battery plate strength testing device. By setting up a material-carrying unit to replace the placement structure on the existing three-point bending strength tester, the device integrates the testing of bending strength, compressive strength, and bonding strength using its pressure-applying unit, achieving multi-purpose functionality. This reduces equipment costs, minimizes space occupation, and improves testing efficiency. Furthermore, the two support components in the material-carrying unit used for bending strength testing have an adaptive floating support effect, replacing the corresponding rigid supports. This matches the bending deformation trajectory of the plate, eliminates additional stress and friction errors, ensures the accuracy of test data, and reduces damage to the plate, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A lead-acid battery plate strength testing device includes a testing instrument body. The top of the testing instrument body is provided with a pressure unit for applying test force and a material carrier unit for supporting the material to be tested, wherein the material carrier unit is located inside the pressure unit. The pressure unit includes a frame fixedly connected to the main body of the detector, a pressure component installed on the top of the frame, a hanger provided at the output end of the pressure component, a pressure end for pressing the material installed at the bottom of the hanger, and the hanger and the frame are slidably connected. The material loading unit includes a U-shaped frame, a horizontal plate, a support platform, bidirectional lead screws, a pushing arm, a slide rail assembly, a support component, a sliding plate, a scissor support frame, a scraping mechanism, and a drive mechanism. The U-shaped frame is bolted to the top shell of the main body of the detector and is located directly below the pressure end. The horizontal plate is integrally mounted inside the U-shaped frame. The support platform is movably connected to the horizontal plate. There are two bidirectional lead screws, symmetrically arranged on the top inner wall of the U-shaped frame, linked by a drive mechanism. There are four pushing arms, arranged in pairs on both sides of the support platform and in contact with the corresponding bidirectional lead screws. The slide rail assembly is located on the top shell of the U-shaped frame. There are two support components, symmetrically arranged on the slide rail assembly. Each support component is equipped with a sliding plate, and the two sliding plates are linked to the corresponding bidirectional lead screws via a scissor support frame. The scraping mechanism is also located on the top inner wall of the U-shaped frame, above the support platform, and is connected to the support component.

[0006] As a further embodiment of the present invention, the frame includes vertical rails and a top plate. There are two vertical rails, which are symmetrically arranged on the top shell wall of the main body of the detector. Each vertical rail is slidably connected to a carrier. The top plate is located on top of the two vertical rails and is fixed by bolts. The pressure-applying assembly includes a hole at the center of the top of the top plate, through which an inner grooved cylinder is rotatably connected. A one-way screw is threaded into the inner grooved cylinder, and the bottom end of the one-way screw is fixedly connected to a hanger. The two sides of the hanger are fixedly connected to corresponding carriers. A rotary motor located on the top shell wall of the top plate is fixedly connected to the left side of the inner grooved cylinder by bolts. A rotating shaft is installed at the output end of the rotary motor, and the bottom end of the rotating shaft penetrates the top plate and is equipped with a rotating gear. An external gear ring is located on the outer shell wall of the inner grooved cylinder on the right side of the rotating gear. The external gear ring meshes with the rotating gear, and a shell cover located on the inner grooved cylinder is fitted below the external gear ring. The shell cover is connected to the bottom shell wall of the top plate by screws.

[0007] As a further embodiment of the present invention, two strip-shaped grooves are symmetrically opened on the horizontal plate, and a guide rod is provided in each strip-shaped groove. A movable seat and a compression spring are sleeved on the guide rod. There are two movable seats and two compression springs. Each movable seat is provided with an ear plate. The support platform includes a frame, a grid frame, adjusting arms, a sealing assembly, and a lifting assembly. The grid frame is located on the top of the frame, and protruding plates are integrally provided at the four bottom corners of the frame. There are four adjusting arms, which are movably connected to the corresponding protruding plates by pins, and the bottom end of each adjusting arm is installed on the corresponding ear plate by a movable pin.

[0008] As a further embodiment of the present invention, the blocking assembly includes a base plate located below the grid frame, and a plurality of blocking blocks are arranged in a matrix on the top of the base plate, the blocking blocks fitting into the grid channels on the grid frame; The lifting assembly includes an H-shaped bracket that is fixedly connected to the bottom shell wall of the frame by bolts. Multiple hydraulic cylinders are arranged in a matrix on the top of the H-shaped bracket. The output end of the hydraulic cylinder is fixedly connected to the base plate. Two support legs for auxiliary support are symmetrically arranged on the bottom shell wall of the H-shaped bracket.

[0009] As a further embodiment of the present invention, the top shell wall of the U-shaped frame is provided with a passage groove for facilitating the lifting and moving of the support platform. Two booms are symmetrically rotatably connected to the bidirectional screw. The top of each boom is fixedly connected to the top inner wall of the U-shaped frame. Two push blocks located on the bidirectional screw are threaded between the two booms. A sliding sleeve is installed on the top of each push block, and the sliding sleeve is slidably connected to the U-shaped frame. One end of each of the multiple push arms is fixedly connected to a corresponding moving seat by bolts, and the other end of the push arm is slidably connected to a corresponding bidirectional lead screw.

[0010] As a further embodiment of the present invention, the slide rail assembly includes two slide rails, which are respectively fixedly connected to the top outer wall of the U-shaped frame by bolts, and slide blocks are slidably connected to the slide rails. The support assembly includes a U-shaped base plate, a roller, a longitudinal telescopic component, a limiting plate, and a transverse sliding component. There are two transverse sliding components, which are respectively disposed at the bottom ends of the U-shaped base plate, and the transverse sliding components are fixedly connected to the corresponding slide blocks. The top shell wall of the U-shaped substrate has a groove, and the front and rear shell walls of the groove have movable slots. The roller is located in the groove, and the two ends of the roller pass through the corresponding movable slots. There are two longitudinal telescopic members, which are respectively set on the front and rear sides of the U-shaped substrate and connected to the roller. The limiting plate is fixedly connected to the outer shell wall of the U-shaped substrate by bolts.

[0011] As a further embodiment of the present invention, the longitudinal telescopic member includes a base that is fixedly connected to the outer wall of the U-shaped substrate by bolts, a spring telescopic rod is installed on the top of the base, an L-shaped plate is provided at the output end of the spring telescopic rod, and the L-shaped plate is rotatably connected to the roller shaft by bearings. The transverse sliding component includes a U-shaped plate fixedly connected to the slide block by bolts. Slide rods are provided on the front and rear side shells of the U-shaped plate. An end seat is slidably connected between the two slide rods. A return spring is also sleeved on each slide rod. The bottom end of the U-shaped base plate is fixed to the end seat by bolts.

[0012] As a further embodiment of the present invention, the slide plate is located directly below the U-shaped base plate, and the two ends of the slide plate are fixedly connected to the corresponding slide seats respectively. Two displacement seats are slidably connected on the slide plate, and the two ends of the scissor support frame are movably connected to the corresponding displacement seats and the slide sleeves respectively through pins. The drive mechanism includes a motor, a drive gear, a driven gear, and a chain. There are two driven gears, which are respectively located at the rear end of the corresponding bidirectional lead screw. The drive gear is located at the output end of the motor. The drive gear and the driven gear are connected by a chain. The motor is mounted on the top shell wall of the horizontal plate via a pad.

[0013] As a further embodiment of the present invention, the scraping mechanism includes a transmission assembly and a scraper, wherein there are two transmission assemblies, which are symmetrically arranged above the support platform, and the scraper is movably connected to the two transmission assemblies. The transmission assembly includes a rotating shaft, a transmission shaft, a transmission gear, and an adjusting component. The rotating shaft has two straight plates symmetrically arranged front and back. The tops of the two straight plates are fixedly connected to the top inner wall of the U-shaped frame. The outer shell wall of the rotating shaft has an arc-shaped sliding groove. The scraper is sleeved on the two rotating shafts, and the two sides of the scraper shell wall are threaded with protruding rods. The inner ends of the protruding rods are slidably connected to the corresponding arc-shaped sliding grooves.

[0014] As a further embodiment of the present invention, the transmission shaft is fixedly connected to the front end of the rotating shaft by a coupling, the transmission gear is disposed at the front end of the transmission shaft, and the adjusting component includes a rack located above the transmission gear, a connecting arm is mounted on the rack, the other end of the connecting arm is fixedly connected to the corresponding slide by bolts, and the rack and the transmission gear mesh and transmit power.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By replacing the existing three-point bending strength tester with a material-carrying unit, the device integrates the testing of bending strength, compressive strength, and bond strength using its pressure unit, achieving multi-purpose functionality. This reduces equipment costs, minimizes space requirements, and improves testing efficiency.

[0016] In the material loading unit, the drive component drives two bidirectional lead screws to move synchronously, which, together with the scissor support frame, drives the displacement adjustment of the corresponding support components to realize the testing and placement of multi-specification electrode plates. When the corresponding support components open and move, the support platform is lifted under the action of the push arm, so as to facilitate the testing of the compressive strength and bonding strength of the electrode plates.

[0017] When the two bidirectional lead screws move in opposite directions, they can not only reset the support platform, but also drive the scraping mechanism while running continuously. This allows for automatic scraping and cleaning of the top of the support platform after use and reset, replacing manual cleaning, reducing the workload of workers, and ensuring the efficiency of equipment operation.

[0018] The support assembly adopts an adaptive floating support structure, in which the configured transverse sliding parts, longitudinal telescopic parts and rollers enable it to slide horizontally, float vertically elastically and rotate freely, matching the bending deformation trajectory of the electrode plate, eliminating additional stress and friction errors, ensuring the accuracy of test data and reducing damage to the electrode plate. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of a lead-acid battery plate strength testing device; Figure 2 for Figure 1 A schematic diagram of the pressure application unit structure; Figure 3 for Figure 2 A schematic diagram of the structure viewed from below; Figure 4 for Figure 1 A schematic diagram of the material-carrying unit structure; Figure 5 for Figure 4 A schematic diagram of the axial side view structure; Figure 6 for Figure 4 A schematic diagram of the structure viewed from below; Figure 7 for Figure 4 A schematic diagram of the support platform structure; Figure 8 for Figure 7 A schematic diagram of the structure viewed from below; Figure 9 for Figure 4 A schematic diagram of the scraping mechanism; Figure 10 for Figure 9 A schematic diagram of the structure viewed from below.

[0020] In the diagram: 1. Main body of the detector; 2. Pressure application unit; 21. Frame; 211. Vertical rail; 212. Top plate; 22. Pressure application assembly; 221. Inner grooved cylinder; 222. One-way lead screw; 223. Rotary motor; 224. Rotary gear; 225. External gear ring; 226. Housing; 23. Hanger; 24. Pressure application end; 3. Loading unit; 31. U-shaped frame; 32. Horizontal plate; 33. Supporting platform; 331. Frame; 332. Grid frame; 333. Adjusting arm; 334. Sealing assembly; 3341. Base plate; 3342. Sealing block; 335. Lifting assembly; 3351. H-type bracket; 3352. Hydraulic cylinder; 3353. Support leg; 34. Two-way lead screw; 35. Push arm; 36. Slide rail assembly; 37. Support assembly; 371. U-shaped base plate; 372. Roller; 373. Longitudinal telescopic component; 374. Limiting plate; 375. Lateral sliding component; 38. Slide plate; 39. Scissor support frame; 310. Scraping mechanism; 3101. Rotating shaft; 3102. Drive shaft; 3103. Drive gear; 3104. Adjusting component; 3105. Scraper; 311. Drive mechanism. Detailed Implementation

[0021] Please see Figure 1 In this embodiment of the invention, a lead-acid battery plate strength testing device includes a testing instrument body 1. The top of the testing instrument body 1 is provided with a pressure application unit 2 for applying test force and a material loading unit 3 for supporting the material to be tested, wherein the material loading unit 3 is located inside the pressure application unit 2. The main body 1 of the detector is electrically connected to the pressure unit 2, and the main body 1 of the detector is also electrically connected to the material loading unit 3. Thus, the controller in the main body 1 of the detector can control the drive structure in the pressure unit 2 and the material loading unit 3. Please see Figures 1-3 In this embodiment of the invention, the pressure unit 2 includes a frame 21 fixedly connected to the main body 1 of the detector. A pressure component 22 is installed on the top of the frame 21. A hanger 23 is provided at the output end of the pressure component 22. A pressure end 24 for pressing the material is installed at the bottom of the hanger 23. The hanger 23 and the frame 21 are slidably connected. The operation of the pressure application component 22 drives the hanger 23 to perform stable lifting and lowering activities, thereby enabling the pressure application end 24 mounted on it to perform synchronous lifting and lowering activities, thereby achieving the pressing force on the material to be tested. The frame 21 includes vertical rails 211 and a top plate 212. There are two vertical rails 211, which are symmetrically arranged on the top shell wall of the main body 1 of the detector. Each vertical rail 211 is slidably connected to a carrier. The top plate 212 is located on the top of the two vertical rails 211 and is fixed by bolts. The frame 21 formed by the two vertical rails 211 and the top plate 212 has a gantry structure, thereby achieving stable lifting and lowering of the hanger 23; The pressure application component 22 includes a hole at the center of the top of the top plate 212, an inner threaded cylinder 221 is rotatably connected in the hole, a one-way screw 222 is threaded inside the inner threaded cylinder 221, the bottom end of the one-way screw 222 is fixedly connected to the hanger 23, the two sides of the hanger 23 are fixedly connected to the corresponding carriers, and the cooperation of the carriers and the vertical rail 211 provides guidance and support for the lifting and lowering movement of the hanger 23; A rotary motor 223 located on the top shell wall of the top plate 212 is fixedly connected to the left side of the inner cylinder 221 by bolts. A rotating shaft is installed at the output end of the rotary motor 223. The bottom end of the rotating shaft passes through the top plate 212 and is equipped with a rotating gear 224. An external gear ring 225 located on the outer shell wall of the inner cylinder 221 is provided on the right side of the rotating gear 224. The external gear ring 225 meshes with the rotating gear 224 for transmission. The operation of the rotary motor 223 drives the rotary gear 224 to rotate, and the rotary gear 224 meshes with the external gear ring 225, thereby causing the inner grooved cylinder 221 to rotate. When the inner grooved cylinder 221 rotates, the one-way screw 222 threaded to its inner wall drives the hanger 23 to move up and down, so that the pressure end 24 loaded on it moves synchronously. A housing 226 located on the inner textured cylinder 221 is fitted below the outer toothed ring 225. The housing 226 is connected to the bottom shell wall of the top plate 212 by screws. The housing 226 is provided to protect the rotating gear 224 and the external gear ring 225.

[0022] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 In this embodiment of the invention, the material loading unit 3 includes a U-shaped frame 31, a horizontal plate 32, a support platform 33, a bidirectional lead screw 34, a pushing arm 35, a slide rail group 36, a support assembly 37, a sliding plate 38, a scissor support frame 39, a scraping mechanism 310, and a driving mechanism 311. The U-shaped frame 31 is fixedly connected to the top shell wall of the detector body 1 by bolts and is located directly below the pressure end 24, thereby ensuring that the material to be tested placed on it can be stably pressured by the pressure end 24. The horizontal plate 32 is integrally set inside the U-shaped frame 31, and the support platform 33 is movably connected to the horizontal plate 32. There are two bidirectional lead screws 34, which are symmetrically set on the top inner wall of the U-shaped frame 31. The two bidirectional lead screws 34 are linked together by the drive mechanism 311. The configuration of the horizontal plate 32 is used to cooperate with the lifting and adjustment of the support platform 33, and to divide the internal space of the U-shaped frame 31 for easy placement of accessories. The pusher arm 35 includes four arms, arranged in pairs, and is respectively set on both sides of the support platform 33 and in active contact with the corresponding bidirectional lead screw 34. When the bidirectional lead screw 34 is running, the movement of the support platform 33 is achieved by adjusting the pusher arm 35. The slide rail assembly 36 is set on the top shell wall of the U-shaped frame 31. The support assembly 37 includes two components, which are symmetrically arranged on the slide rail assembly 36. Each support assembly 37 is equipped with a slide plate 38. The two slide plates 38 are linked with the corresponding bidirectional lead screw 34 through a scissor support frame 39. When the bidirectional lead screw 34 moves, the position of the corresponding support assembly 37 is adjusted through the scissor support frame 39 and the corresponding slide plate 38, so as to be suitable for different specifications of test materials. The scraping mechanism 310 is also set on the top inner wall of the U-shaped frame 31 and located above the support platform 33. The scraping mechanism 310 is connected to the support component 37. The support component 37 is driven by the movement of the bidirectional screw 34 to drive the scraping mechanism 310, thereby achieving self-cleaning of the top of the support platform 33.

[0023] Two strip slots are symmetrically opened on the horizontal plate 32. Each strip slot is equipped with a guide rod. A movable seat and a compression spring are sleeved on the guide rod. There are two movable seats and two compression springs. Each movable seat is equipped with an ear plate. The compression spring is configured to realize the reset movement of the support platform 33 when the bidirectional lead screw 34 moves in the opposite direction. Please see Figures 4-8In this embodiment of the invention, the support platform 33 includes a frame 331, a grid frame 332, an adjusting arm 333, a blocking component 334, and a lifting component 335. The grid frame 332 is disposed on the top of the frame 331, and a protruding plate is integrally provided at each of the four bottom corners of the frame 331. The adjusting arm 333 includes four arms, which are movably connected to the corresponding protruding plates by pins, and the bottom end of each adjusting arm 333 is respectively installed on the corresponding ear plate by a movable pin. As the displacement of each push arm 35 is adjusted, the corresponding moving seat is displaced. At this time, the multiple adjusting arms 333 in the support platform 33 are adjusted synchronously to realize the overall lifting and lowering movement of the support platform 33.

[0024] The blocking assembly 334 includes a base plate 3341 located below the grid frame 332. Multiple blocking blocks 3342 are arranged in a matrix on the top of the base plate 3341, and the blocking blocks 3342 fit into the grid channels on the grid frame 332. Each sealing block 3342 in the sealing assembly 334 is precisely fitted with the grid channel on the grid frame 332. Thus, when the sealing block 3342 is fully inserted into the grid channel, the top of the grid frame 332 is a complete plane. If the sealing block 3342 moves down, the top of the grid frame 332 becomes a grid, thereby realizing the switching of testing the compressive strength and bonding strength of the material to be tested. The lifting assembly 335 includes an H-shaped bracket 3351 that is fixedly connected to the bottom shell wall of the frame 331 by bolts. Multiple hydraulic cylinders 3352 are arranged in a matrix on the top of the H-shaped bracket 3351. The output end of the hydraulic cylinders 3352 is fixedly connected to the base plate 3341. Two support legs 3353 for auxiliary support are symmetrically arranged on the bottom shell wall of the H-shaped bracket 3351. The hydraulic cylinders 3352 are arranged in a range of two to six, and four are used in this embodiment, which are respectively arranged at the top four corners of the H-shaped bracket 3351; The support legs 3353 are configured to ensure the stability of the support platform 33 in its initial state, and further facilitate the scraping mechanism 310 to scrape and clean its top surface.

[0025] The top shell wall of the U-shaped frame 31 is provided with a passage groove for the lifting and passing of the support platform 33. Two booms are symmetrically rotatably connected to the bidirectional screw 34. The top of each boom is fixedly connected to the top inner wall of the U-shaped frame 31. Two push blocks located on the bidirectional screw 34 are threadedly connected between the two booms. Each push block is equipped with a sliding sleeve on its top, and the sliding sleeve is slidably connected to the U-shaped frame 31. When the bidirectional lead screw 34 rotates, the push block on it moves linearly with the help of the sliding sleeve; One end of each of the multiple push arms 35 is fixedly connected to the corresponding moving base by bolts, and the other end of the push arm 35 is slidably connected to the corresponding bidirectional lead screw 34.

[0026] The slide rail assembly 36 includes two slide rails, which are respectively fixedly connected to the top outer wall of the U-shaped frame 31 by bolts, and slide seats are slidably connected on the slide rails; The support assembly 37 includes a U-shaped base plate 371, a roller 372, a longitudinal telescopic member 373, a limiting plate 374, and a transverse sliding member 375. There are two transverse sliding members 375, which are respectively disposed at the bottom ends of the U-shaped base plate 371, and the transverse sliding members 375 are fixedly connected to the corresponding slides. The configuration of the lateral sliding component 375 enables the U-shaped substrate 371 to undergo slight lateral displacement during use, thereby achieving a force-relieving effect. A groove is provided on the top shell wall of the U-shaped substrate 371, and a moving groove is provided on the front and rear shell walls of the groove. The roller 372 is located in the groove, and the two ends of the roller 372 pass through the corresponding moving grooves respectively. The configuration of the moving grooves provides movement space for the roller 372 to rise and fall. The longitudinal telescopic component 373 includes two parts, which are respectively disposed on the front and rear sides of the U-shaped substrate 371 and connected to the roller 372. The limiting plate 374 is fixedly connected to the outer shell wall of the U-shaped substrate 371 by bolts. On the one hand, it is used to center and calibrate the material to be tested, and on the other hand, it is used to constrain the side end of the material to be tested to ensure its stability in the bending strength test. The configuration of the longitudinal telescopic component 373 allows for a slight longitudinal movement of the roller 372 during use, achieving a force-relieving effect.

[0027] The longitudinal telescopic component 373 includes a base that is fixedly connected to the outer wall of the U-shaped base plate 371 by bolts. A spring telescopic rod is installed on the top of the base. An L-shaped plate is provided at the output end of the spring telescopic rod. The L-shaped plate and the roller shaft 372 are rotatably connected by bearings. After being subjected to force, the roller 372 moves slightly downward under the action of the spring telescopic rod. When the material is bent under force, the roller 372 rotates slightly. This, together with the transverse sliding component 375, eliminates additional stress and friction errors, ensuring the accuracy of the test data.

[0028] The transverse sliding member 375 includes a U-shaped plate fixedly connected to the slide block by bolts. Slide rods are provided on the front and rear side shells of the U-shaped plate. An end seat is slidably connected between the two slide rods. A return spring is also sleeved on each slide rod. The bottom end of the U-shaped base plate 371 is fixed to the end seat by bolts. There are two return springs, located on both sides of the end seat, to ensure the stability of the lateral adjustment of the U-shaped base plate 371 by the lateral sliding member 375.

[0029] The slide plate 38 is located directly below the U-shaped base plate 371, and both ends of the slide plate 38 are fixedly connected to the corresponding slide seats. Two displacement seats are slidably connected on the slide plate 38, and both ends of the scissor support frame 39 are movably connected to the corresponding displacement seats and the slide sleeves through pins. The position of the support assembly 37 can be adjusted by the movement of the bidirectional lead screw 34, combined with the scissor support frame 39 and the slide plate 38; The drive mechanism 311 includes a motor, a drive gear, a driven gear, and a chain. There are two driven gears, which are respectively located at the rear end of the corresponding bidirectional lead screw 34. The drive gear is located at the output end of the motor. The drive gear and the driven gear are connected by a chain. The motor is mounted on the top shell wall of the horizontal plate 32 via a pad. The motor drives the drive gear to rotate, which, together with the chain, makes the two driven gears move synchronously, thereby realizing the corresponding bidirectional lead screw 34 movement.

[0030] Please see Figure 4 and Figures 9-10 In this embodiment of the invention, the scraping mechanism 310 includes a transmission assembly and a scraper 3105. The transmission assembly includes two components, which are symmetrically arranged above the support platform 33. The scraper 3105 is movably connected to the two transmission assemblies. The displacement adjustment of scraper 3105 is achieved by the synchronous movement of two transmission components; The transmission assembly includes a rotating shaft 3101, a transmission shaft 3102, a transmission gear 3103, and an adjusting component 3104. The rotating shaft 3101 has two straight plates symmetrically arranged front and back. The tops of the two straight plates are fixedly connected to the top inner wall of the U-shaped frame 31. The outer shell wall of the rotating shaft 3101 is provided with an arc-shaped sliding groove. The scraper 3105 is sleeved on the two rotating shafts 3101. The two shell walls of the scraper 3105 are threaded with protruding rods. The inner ends of the protruding rods are slidably connected to the corresponding arc-shaped sliding grooves. When the rotating shaft 3101 rotates, the inner end of the protruding rod slides inside the arc-shaped groove on it, and the protruding rod is fixedly connected to the scraper 3105, thereby causing the scraper 3105 to adjust its position as the rotating shaft 3101 rotates.

[0031] The drive shaft 3102 is fixedly connected to the front end of the rotating shaft 3101 via a coupling. The drive gear 3103 is located at the front end of the drive shaft 3102. The adjusting member 3104 includes a rack located above the drive gear 3103. A connecting arm is mounted on the rack. The other end of the connecting arm is fixedly connected to the corresponding slide by bolts. The rack and the drive gear 3103 mesh and transmit power. When the support platform 33 is in its initial state, there is a certain gap between the rack and the transmission gear 3103. Therefore, when the support component 37 is fine-tuned, the rack and the transmission gear 3103 will not mesh, thus ensuring the safety of the support component 37 after the material to be tested is placed.

[0032] The working principle of this invention is as follows: When testing the bending strength of the material to be tested, the corresponding pressure end 24 is first assembled on the hanger 23 in the pressure unit 2. Then, the positions of the two support components 37 in the loading unit 3 are adjusted slightly according to the specifications of the material to be tested. When the support components 37 are adjusted, the motor in the drive mechanism 311 is started by the controller body on the main body of the test instrument 1, so that the two bidirectional lead screws 34 move synchronously. Under the action of the push block on them driving the sliding sleeve to move, the displacement adjustment of the corresponding support component 37 is achieved in combination with the scissor support frame 39 and the slide plate 38. After the positions of the two support components 37 are adjusted, the material to be tested is placed in the center on the rollers 372 of the two support components 37. Then, the drive mechanism 311 is started again to make the two support components 37 fine-tuned to ensure the stability of the material to be tested. Then, the controller on the main body of the detector 1 starts the operation of the pressure unit 22, which causes the hanger 23 to move the pressure end 24 downward. During the downward movement, the pressure end 24 presses the material to be tested placed on the two support components 37. When the material to be tested is subjected to force, the rollers 372 on the two support components 37 move slightly downward under the action of the longitudinal telescopic member 373, and the rollers 372 rotate slightly as the material to be tested bends. The U-shaped base plate 371 in the two support components 37 moves slightly outward laterally under the action of the transverse sliding member 375, thereby eliminating additional stress and friction error. After the bending strength test is completed, the controller in the main body 1 of the tester starts the pressure component 22 in the pressure unit 2 to run in reverse, thereby driving the pressure end 24 to reset through the hanger 23. Next, the material on the two support components 37 is removed, and the pressure end 24 is replaced to make it suitable for subsequent strength testing; Then, the controller in the main body of the detector 1 starts the drive mechanism 311 in the loading unit 3, which drives the two bidirectional screws 34 to rotate. At this time, the two push blocks on the bidirectional screws 34 drive the sliding sleeve to move outward, so that the scissor support frame 39 connected to it opens, and the corresponding support component 37 moves outward on the slide rail group 36 through the slide plate 38 for adjustment. As the push block gradually moves, it contacts the corresponding push arm 35 and pushes and adjusts it. The displacement of the push arm 35 causes the corresponding moving seat to move. When the moving seat moves, it compresses the corresponding compression spring and causes the corresponding adjusting arm 333 in the support platform 33 to move. Each adjusting arm 333 supports and lifts the frame 331 in the support platform 33. When the frame 331 moves upward, it drives the grid frame 332, the blocking component 334 and the lifting component 335 to move upward synchronously. When the two support components 37 move to the maximum mileage, the load platform 33 is lifted out of the passageway, at which point the top plane of the load platform 33 is above the U-shaped frame 31. If the compressive strength of the material to be tested is to be tested, the sealing component 334 in the support platform 33 remains in its initial state, so that the top of the grid frame 332 remains a complete plane. At this time, the material to be tested is placed on the top of the grid frame 332, and then the pressure application component 22 is activated by the controller in the main body of the tester 1, so that the hanger 23 drives the corresponding pressure application end 24 to move down, thereby pressing the material located on the top of the support platform 33 to achieve the test of its compressive strength. After the material completes the compressive strength test, the controller in the main body of the tester 1 starts the pressure application component 22 to run in reverse, so that the hanger 23 drives the corresponding pressure application end 24 to move up and reset. Then, the material on the support platform 33 is removed. Then, the controller in the main body of the tester 1 starts the drive mechanism 311 in the loading unit 3 to run in reverse, and the two bidirectional lead screws 34 run in reverse. The push block on them drives the corresponding sliding sleeve to reset in reverse. At this time, under the action of the compression spring, each moving seat resets and moves. When the moving seat moves, the push arm 35 and the adjusting arm 333 on it reset and adjust, so that the support platform 33 moves down. When the support platform 33 moves down and resets to the initial state, the support leg 3353 in the lifting component 335 contacts the horizontal plate 32 to achieve stable support. Meanwhile, the two bidirectional lead screws 34 continuously move in opposite directions. At this time, the push block on them disengages from the corresponding push arm 35, and the sliding sleeve drives the two support components 37 to continuously approach each other through the scissor support frame 39. At this time, the adjusting member 3104 located on the corresponding slide in the scraping mechanism 310 moves accordingly. When the rack in the adjusting member 3104 contacts the corresponding transmission gear 3103, it drives the corresponding rotating shaft 3101 to move through the transmission shaft 3102. The rotation of the rotating shaft 3101 causes the scraper 3105 connected to it to move forward. The movement of the scraper 3105 scrapes the top of the reset support platform 33, thereby achieving automatic cleaning. When the two support components 37 approach each other to the minimum distance, the contact between the rack and the transmission gear 3103 can only drive the transmission gear 3103 to rotate half a turn. At this time, the scraper 3105 achieves the maximum distance movement under the cooperation of the arc-shaped sliding groove and the protruding rod on the rotating shaft 3101, and completes the scraping and cleaning of the top of the support platform 33. Finally, the two support components 37 move in opposite directions, and after the scraper 3105 is reset, the two bidirectional screws 34 continue to run, causing the support platform 33 to be lifted out again. After that, each hydraulic cylinder 3352 of the lifting component 335 in the support platform 33 operates synchronously, causing the blocking component 334 to move down, so that the top surface of the grid frame 332 is in the grid state again. After adjustment, the material to be tested is placed on the top of the grid frame 332. The pressure component 22 is started by the controller in the main body of the detector 1, which causes the hanger 23 to move the corresponding pressure end 24 downward to press the material to be tested, thereby realizing the detection of its bonding strength. Finally, after the test is completed, the controller in the main body of the tester 1 starts the pressure component 22 to run in reverse, so that the hanger 23 drives the corresponding pressure end 24 to move up and reset, so as to facilitate the removal of the material on the support platform 33. Then, the controller in the main body of the tester 1 starts the hydraulic cylinders 3352 of the lifting component 335 to run synchronously, so that the sealing component 334 moves up, so that the top of the support platform 33 forms a complete plane again. Then, the controller in the main body of the tester 1 starts the drive mechanism 311, so that the support platform 33 falls back and resets, and the scraping mechanism 310 automatically cleans its top again, in preparation for the subsequent testing of the material to be tested.

[0033] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lead-acid battery plate strength testing device, comprising a testing instrument body (1), characterized in that: The top of the main body (1) of the detector is provided with a pressure unit (2) for applying test force and a material carrier (3) for supporting the material to be tested, wherein the material carrier (3) is located inside the pressure unit (2); The pressure unit (2) includes a frame (21) fixedly connected to the main body (1) of the detector. A pressure component (22) is installed on the top of the frame (21). A hanger (23) is provided at the output end of the pressure component (22). A pressure end (24) for pressing the material is installed at the bottom of the hanger (23). The hanger (23) and the frame (21) are slidably connected. The loading unit (3) includes a U-shaped frame (31), a horizontal plate (32), a support platform (33), a two-way screw (34), a pushing arm (35), a slide rail assembly (36), a support component (37), a sliding plate (38), a scissor support frame (39), a scraping mechanism (310), and a drive mechanism (311). The U-shaped frame (31) is fixedly connected to the top shell wall of the main body (1) of the detector by bolts and is located directly below the pressure end (24). The horizontal plate (32) is integrally set inside the U-shaped frame (31). The support platform (33) is movably connected to the horizontal plate (32). There are two two-way screws (34), which are symmetrically set on the top inner wall of the U-shaped frame (31). The two two-way screws (34) are connected by a... The drive mechanism (311) is linked together. The push arm (35) includes four arms, which are arranged in pairs on both sides of the support platform (33) and are in contact with the corresponding bidirectional lead screw (34). The slide rail group (36) is set on the top shell wall of the U-shaped frame (31). The support component (37) includes two arms, which are symmetrically arranged on the slide rail group (36). Each support component (37) is equipped with a slide plate (38). The two slide plates (38) are linked with the corresponding bidirectional lead screw (34) through a scissor support frame (39). The scraping mechanism (310) is also set on the top inner wall of the U-shaped frame (31) and located above the support platform (33). The scraping mechanism (310) is connected to the support component (37).

2. The lead-acid battery plate strength testing device according to claim 1, characterized in that, The frame (21) includes vertical rails (211) and a top plate (212). There are two vertical rails (211), which are symmetrically arranged on the top shell wall of the main body (1) of the detector. Each vertical rail (211) is slidably connected to a carrier. The top plate (212) is located on the top of the two vertical rails (211) and is fixed by bolts. The pressure application assembly (22) includes a hole at the center of the top of the top plate (212), in which an inner grooved cylinder (221) is rotatably connected. A one-way screw (222) is threaded into the inner grooved cylinder (221), and the bottom end of the one-way screw (222) is fixedly connected to a hanger (23). Both sides of the hanger (23) are fixedly connected to corresponding carriers. A rotary motor (223) located on the top shell wall of the top plate (212) is bolted to the left side of the inner grooved cylinder (221). A rotating shaft is installed at the output end of 223. The bottom end of the rotating shaft passes through the top plate (212) and is equipped with a rotating gear (224). An external gear ring (225) is provided on the right side of the rotating gear (224) on the outer ring shell wall of the inner grooved cylinder (221). The external gear ring (225) meshes with the rotating gear (224) for transmission. A shell cover (226) is fitted below the external gear ring (225) on the inner grooved cylinder (221). The shell cover (226) is connected to the bottom shell wall of the top plate (212) by screws.

3. The lead-acid battery plate strength testing device according to claim 1, characterized in that, The horizontal plate (32) has two strip slots symmetrically opened on the left and right sides. Each strip slot is provided with a guide rod. A movable seat and a compression spring are sleeved on the guide rod. There are two movable seats and two compression springs. Each movable seat is provided with an ear plate. The support platform (33) includes a frame (331), a grid frame (332), an adjusting arm (333), a sealing component (334), and a lifting component (335). The grid frame (332) is located on the top of the frame (331), and the four corners of the bottom of the frame (331) are integrally provided with protruding plates. The adjusting arm (333) includes four arms, which are movably connected to the corresponding protruding plates by pins, and the bottom end of each adjusting arm (333) is installed on the corresponding ear plate by a movable pin.

4. The lead-acid battery plate strength testing device according to claim 3, characterized in that, The blocking assembly (334) includes a base plate (3341) located below the grid frame (332), and a plurality of blocking blocks (3342) are arranged in a matrix on the top of the base plate (3341), which are matched with the grid channels on the grid frame (332); The lifting assembly (335) includes an H-shaped bracket (3351) that is fixedly connected to the bottom shell wall of the frame (331) by bolts. Multiple hydraulic cylinders (3352) are arranged in a matrix on the top of the H-shaped bracket (3351). The output end of the hydraulic cylinder (3352) is fixedly connected to the base plate (3341). Two auxiliary support legs (3353) are symmetrically arranged on the bottom shell wall of the H-shaped bracket (3351).

5. The lead-acid battery plate strength testing device according to claim 3, characterized in that, The top shell wall of the U-shaped frame (31) is provided with a passage groove for the lifting and passing of the support platform (33). Two booms are symmetrically rotatably connected to the double-acting screw (34). The top of each boom is fixedly connected to the top inner wall of the U-shaped frame (31). Two push blocks located on the double-acting screw (34) are threaded between the two booms. Each push block is equipped with a sliding sleeve on its top, which is slidably connected to the U-shaped frame (31). One end of each of the multiple push arms (35) is fixedly connected to the corresponding moving seat by bolts, and the other end of the push arm (35) is slidably connected to the corresponding bidirectional lead screw (34).

6. The lead-acid battery plate strength testing device according to claim 5, characterized in that, The slide rail assembly (36) includes two slide rails, which are respectively fixedly connected to the top outer wall of the U-shaped frame (31) by bolts, and slide seats are slidably connected on the slide rails; The support assembly (37) includes a U-shaped base plate (371), a roller (372), a longitudinal telescopic member (373), a limiting plate (374), and a transverse sliding member (375). There are two transverse sliding members (375), which are respectively disposed at the bottom ends of the U-shaped base plate (371), and the transverse sliding members (375) are fixedly connected to the corresponding slide blocks. The top shell wall of the U-shaped substrate (371) has a groove, and the front and rear shell walls of the groove have moving slots. The roller (372) is located in the groove, and the two ends of the roller (372) pass through the corresponding moving slots. There are two longitudinal telescopic members (373), which are respectively set on the front and rear sides of the U-shaped substrate (371) and connected to the roller (372). The limiting plate (374) is fixedly connected to the outer shell wall of the U-shaped substrate (371) by bolts.

7. The lead-acid battery plate strength testing device according to claim 6, characterized in that, The longitudinal telescopic member (373) includes a base that is fixedly connected to the outer wall of the U-shaped base plate (371) by bolts. A spring telescopic rod is installed on the top of the base. An L-shaped plate is provided at the output end of the spring telescopic rod. The L-shaped plate and the roller shaft (372) are rotatably connected by bearings. The transverse sliding member (375) includes a U-shaped plate fixedly connected to the slide block by bolts. Slide rods are provided on the front and rear side shells of the U-shaped plate. An end seat is slidably connected between the two slide rods. A return spring is also sleeved on each slide rod. The bottom end of the U-shaped base plate (371) is fixed to the end seat by bolts.

8. The lead-acid battery plate strength testing device according to claim 7, characterized in that, The slide plate (38) is located directly below the U-shaped base plate (371), and the two ends of the slide plate (38) are fixedly connected to the corresponding slide seats respectively. Two displacement seats are slidably connected on the slide plate (38), and the two ends of the scissor support frame (39) are movably connected to the corresponding displacement seats and the slide sleeves respectively through pins. The drive mechanism (311) includes a motor, a drive gear, a driven gear and a chain. There are two driven gears, which are respectively set at the rear end of the corresponding bidirectional lead screw (34). The drive gear is set at the output end of the motor. The drive gear and the driven gear are connected by a chain. The motor is set on the top shell wall of the horizontal plate (32) through a pad.

9. The lead-acid battery plate strength testing device according to claim 6, characterized in that, The scraping mechanism (310) includes a transmission assembly and a scraper (3105). The transmission assembly includes two components, which are symmetrically arranged above the support platform (33). The scraper (3105) is movably connected to the two transmission assemblies. The transmission assembly includes a rotating shaft (3101), a transmission shaft (3102), a transmission gear (3103), and an adjusting component (3104). The rotating shaft (3101) has two straight plates arranged symmetrically front and back. The tops of the two straight plates are fixedly connected to the top inner wall of the U-shaped frame (31). The outer shell wall of the rotating shaft (3101) is provided with an arc-shaped sliding groove. The scraper (3105) is sleeved on the two rotating shafts (3101). The two shell walls of the scraper (3105) are threaded with protruding rods. The inner end of the protruding rod is slidably connected to the corresponding arc-shaped sliding groove.

10. The lead-acid battery plate strength testing device according to claim 9, characterized in that, The drive shaft (3102) is fixedly connected to the front end of the rotating shaft (3101) by a coupling. The drive gear (3103) is located at the front end of the drive shaft (3102). The adjusting member (3104) includes a rack located above the drive gear (3103). A connecting arm is installed on the rack. The other end of the connecting arm is fixedly connected to the corresponding slide by bolts. The rack and the drive gear (3103) mesh and transmit power.

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