CN111678779A - Method for testing plate grid performance - Google Patents

Method for testing plate grid performance Download PDF

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Publication number
CN111678779A
CN111678779A CN202010406163.5A CN202010406163A CN111678779A CN 111678779 A CN111678779 A CN 111678779A CN 202010406163 A CN202010406163 A CN 202010406163A CN 111678779 A CN111678779 A CN 111678779A
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CN
China
Prior art keywords
grid
clamping plate
rod
clamp
limiting rod
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Granted
Application number
CN202010406163.5A
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Chinese (zh)
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CN111678779B (en
Inventor
杨云珍
王新成
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Chaowei Power Group Co Ltd
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Chaowei Power Group Co Ltd
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Priority to CN202010406163.5A priority Critical patent/CN111678779B/en
Publication of CN111678779A publication Critical patent/CN111678779A/en
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Publication of CN111678779B publication Critical patent/CN111678779B/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/04—Chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0017—Tensile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens
    • G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/04—Chucks, fixtures, jaws, holders or anvils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0676—Force, weight, load, energy, speed or acceleration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention discloses a method for testing grid performance, which comprises a device for testing the grid performance, and the method comprises the following steps: step 1), moving an articulated rod (111) upwards, moving a movable clamping plate (21), and placing a grid in a mounting groove (23); step 2) adjusting a movable clamping plate (21), fixing the grid by using the movable clamping plate (21) and a static clamping plate (22), simultaneously, rotating and screwing a fixing piece (141), and enabling the fixing piece (141) to move inwards to be in close contact with the movable clamping plate (21); step 3), loosening the hinged rod (111), moving the hinged rod (111) downwards under the action of gravity, and moving the limiting rod (112) inwards to be in contact with the grid; and 4) carrying out a tensile test on the grid. The testing method is suitable for testing grids of different sizes, the fixed grid is stressed uniformly, and the testing result is accurate.

Description

Method for testing plate grid performance
Technical Field
The invention relates to a plate grid performance testing method.
Background
The grid is a main component of the lead-acid storage battery, is a current collecting framework of an electrode, plays a role in conducting and collecting current and enabling the current to be distributed uniformly, plays a role in supporting active substances and is a carrier of the active substances. The density of the active material changes during charging and discharging of the lead-acid storage battery. That is, since the density of the active material before and after the conversion is different, the molar volume of the active material increases during the discharge, and the electrode expands and deforms, and the volume of the active material decreases during the charge, that is, the electrode contracts, and therefore, the support of the grid prevents the active material from falling off due to the expansion and contraction of the electrode. Lead alloys used as battery grids should have certain mechanical properties (e.g., hardness, tensile strength, elongation, etc.), corrosion resistance, electrical conductivity, excellent casting properties, and weldability.
The laboratory often can carry out performance detection such as tensile strength, creep resistance to the grid that does not use the shape, and the tensile strength tester that present laboratory used is from taking frock clamp, and the anchor clamps size has been fixed, is not suitable for with detecting the grid, and the size is improper, and the clamp grid one end of can not balanced stable of anchor clamps, and the rib atress is inhomogeneous on the grid, leads to the result inaccuracy.
Disclosure of Invention
The invention provides a method for testing grid performance, which comprises a device for testing the grid performance, wherein the device comprises a clamp (1) and a clamping plate (2), and is characterized in that the clamping plate (2) comprises a movable clamping plate (21) and a fixed clamping plate (22), an installation groove (23) is arranged between the movable clamping plate (21) and the fixed clamping plate (22), a guide rail (15) is arranged on the clamp (1), the movable clamping plate (21) is connected to the guide rail (15) in a sliding manner, a fixing part (141) for fixing the movable clamping plate (21) is arranged on the clamp (1), a connecting assembly (11) is arranged on the clamp (1), an installation opening (116) with an adjustable opening size is arranged on the connecting assembly (11), the connecting assembly (11) comprises a hinge rod (111), a limiting rod (112) and a connecting plate (113), the hinge rod (111) is connected with the limiting rod (112) through the connecting plate (113), the limiting rod (112) comprises a first limiting rod (114) and a second limiting rod (115), the mounting port (116) is arranged between the first limiting rod (114) and the second limiting rod (115), and the method comprises the following steps: step 1), moving an articulated rod (111) upwards, moving a movable clamping plate (21), and placing a grid in a mounting groove (23); step 2) adjusting a movable clamping plate (21), fixing the grid by using the movable clamping plate (21) and a static clamping plate (22), simultaneously, rotating and screwing a fixing piece (141), and enabling the fixing piece (141) to move inwards to be in close contact with the movable clamping plate (21); step 3), loosening the hinged rod (111), moving the hinged rod (111) downwards under the action of gravity, and moving the limiting rod (112) inwards to be in contact with the grid; and 4) carrying out a tensile test on the grid.
The testing method is suitable for testing grids of different sizes, the fixed grid is stressed uniformly, and the testing result is accurate.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic view of the structure of the static splint of the present invention.
Fig. 4 is a schematic view of the movable clamp plate structure of the invention.
Fig. 5 is a schematic view of the splint structure according to the present invention.
In the figure: 1. the clamp comprises a clamp 11, a connecting assembly 111, a hinge rod 112, a limiting rod 113, a connecting plate 114, a first limiting rod 115, a second limiting rod 116, a mounting opening 12, a hinge sliding groove 13, a limiting sliding groove 14, a fixing hole 141, a fixing piece 15, a guide rail 16, a clamp groove 17, a mounting seat 2, a clamping plate 21, a movable clamping plate 211, a clamping groove 22, a static clamping plate 221, a buckle 23 and a mounting groove.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
In the embodiment shown in fig. 1 and 2, the device for testing the grid performance comprises a clamp 1 and a clamping plate 2. The grid is fixed by the clamp plate 2, a clamp groove 16 is arranged on the clamp 1, and the clamp plate 2 is arranged in the clamp groove 16. The clamping plate 2 comprises a movable clamping plate 21 and a static clamping plate 22, wherein the static clamping plate 22 is fixedly connected to the inner wall of the clamp 1. The bottom of the clamp 1 is also provided with a mounting seat 17, and the clamp 1 is fixed on a tester by using the mounting seat 17.
Two guide rails 15 are inserted into the jig 1, and the guide rails 15 penetrate through the jig groove 16. Meanwhile, guide rail 15 holes are formed in two sides of the movable clamping plate 21, the two guide rails 15 are inserted into the movable clamping plate 21, and the movable clamping plate 21 can slide along the direction of the guide rails 15. The fixing of the installation position of the movable clamping plate 21 is realized by the guide rail 15 inserted in the movable clamping plate 21.
Be provided with coupling assembling 11 on anchor clamps 1, coupling assembling 11 includes gag lever post 112, hinged rod 111 and connection plate 113, is connected through connection plate 113 between gag lever post 112 and the hinged rod 111, all rotates at the both ends of gag lever post 112 and hinged rod 111 to be connected with and connects plate 113. The limiting rod 112 comprises a first limiting rod 114 and a second limiting rod 115, an installation opening 116 is formed between the first limiting rod 114 and the second limiting rod 115, and the size of the installation opening 116 is changed by adjusting the distance between the first limiting rod 114 and the second limiting rod 115, so that the installation of grids with different sizes is realized. The first limiting rod 114, the second limiting rod 115, the hinge rod 111 and the connecting plate 113 are connected to realize connecting rod transmission, and the size of the mounting hole 116 can be adjusted by adjusting the position of the hinge rod 111. Meanwhile, in order to avoid the locking of the connecting assembly 11 during use, the first limiting rod 114 and the second limiting rod 115 are not located on the same line with the hinge rod 111.
Four limiting sliding grooves 13 and two hinged sliding grooves 12 are arranged on the fixture 1, wherein the two limiting sliding grooves 13 and one hinged sliding groove 12 are arranged on one side of the fixture 1, the rest limiting sliding grooves 13 and the hinged sliding grooves 12 are arranged on one side of the fixture 1, and the limiting sliding grooves 13 arranged on the two side walls of the fixture 1 correspond to the installation positions of the hinged sliding grooves 12. The limit rod 112 and the hinge rod 111 are inserted into the limit chute 13 and the hinge chute 12. The two ends of the limiting rod 112 are respectively arranged in the limiting sliding grooves 13 on the two sides of the fixture 1, the two ends of the hinge rod 111 are respectively arranged in the hinge sliding grooves 12 on the two sides of the fixture 1, and the limiting sliding grooves 13 on the two sides of the limiting rod 112 and the hinge sliding grooves 12 on the two sides of the hinge rod 111 are used for fixing the limiting rod 112 and the hinge rod 111. Two limiting sliding grooves 13 arranged on the same side of the fixture 1 are horizontally arranged, and the two limiting sliding grooves 13 are arranged on the same horizontal line. The hinge sliding groove 12 is vertically arranged between the two limit sliding grooves 13, and the hinge sliding groove 12 is arranged in the middle of the two limit sliding grooves 13. The side wall of the clamp 1 is provided with a fixing hole 14, the fixing hole 14 and one group of the limiting sliding grooves 13 and the hinge sliding grooves 12 are positioned on the same side, and the fixing hole 14 and the movable clamping plate 21 are positioned on the same side. The fixing hole 14 is a through type structure, and a fixing member 141 is provided in the fixing hole 14, and the fixing member 141 is a screw.
As shown in fig. 3, 4 and 5, the clamping plate 2 comprises a movable clamping plate 21 and a fixed clamping plate 22, wherein the fixed clamping plate 22 is welded on the clamping device 1, the movable clamping plate 21 is slidably connected on the guide rail 15, an installation groove 23 for installing a grid is arranged between the movable clamping plate 21 and the fixed clamping plate 22, and the size of the installation groove 23 can be changed according to the change of the distance between the movable clamping plate 21 and the fixed clamping plate 22. The stationary clamping plate 22 is a strip-shaped plate, and a buckle 221 is arranged on the stationary clamping plate 22. The movable clamping plate 21 is a strip-shaped panel, and a clamping groove 211 is arranged on the movable clamping plate 21. The buckle 221 is matched with the clamping groove 211, and the grid is more stably mounted on the clamping plate 2 by means of matching of the buckle 221 and the clamping groove 211. Guide rail 15 holes are arranged on both sides of the movable clamping plate 21 and the static clamping plate 22, the installation position of the movable clamping plate 21 on the clamp 1 is limited by the guide rail 15 holes, and meanwhile, the movable clamping plate 21 can slide on the guide rail 15, so that the size of the installation opening 116 can be adjusted. The movable clamping plate 21 and the static clamping plate 22 are both provided with a hinge groove, the hinge rod 111 is inserted into the hinge groove, and the hinge rod 111 can slide in the hinge groove
The grid testing method comprises the steps that firstly, in the using process, an articulated rod 111 is moved upwards, limiting rods 112 connected to two sides of the articulated rod 111 are moved outwards, an installation opening 116 is enlarged, meanwhile, a movable clamping plate 21 is moved, an installation groove 23 is enlarged, one end of a grid is placed in the installation groove 23, the movable clamping plate 21 is adjusted, the grid is fixed through the movable clamping plate 21 and a static clamping plate 22, meanwhile, a fixing part 141 is rotated and screwed, the fixing part 141 is moved inwards to be in close contact with the movable clamping plate 21, the installation position of the grid is fixed through the fixing part 141, and the situation that the grid is separated from a clamp 1 due to the movement of the movable clamping plate 21 in the using process and measurement data are influenced is avoided. The hinge rod 111 is released and the restraint rods 112 move inwardly into contact with the grid as the hinge rod 111 moves downwardly under the force of gravity. The installation of the grid is reinforced by the limiting rod 112. And the other side of the grid is fixed on another clamp 1 in the same way, in the measurement process, the grid is stretched at a constant speed by a tester for fixing the mounting seat 17, the speed is set to be 0.334mm/s, data is recorded, the grid is stretched until any rib on the grid is broken, and the maximum pressure value is displayed, so that the tensile strength of the grid can be obtained. The method can compare the tensile strength of the grids of the same type, different structures and different weights. According to the creep-resistant pressure of 26.7Mpa, the average cross section area of the grid is 4.68m2, the tensile force is 125N, a fixed tensile force value is set, the grid is stretched according to the tensile force value, and the deformation degree of the grid can be displayed as deformation displacement and the tensile force value along with the increase of time. The creep resistance of the plate grid can be compared with the deformation strength of the plate grids of the same model and the same batch at the same time. The test method can effectively test the quality of different lead alloy cast plates and can effectively provide experimental data for casting the grid with high strength and stability in production.

Claims (1)

1. The method for testing the grid performance comprises a device for testing the grid performance, the device comprises a clamp (1) and a clamp plate (2), and is characterized in that the clamp plate (2) comprises a movable clamp plate (21) and a static clamp plate (22), a mounting groove (23) is formed between the movable clamp plate (21) and the static clamp plate (22), a guide rail (15) is arranged on the clamp (1), the movable clamp plate (21) is connected to the guide rail (15) in a sliding manner, a fixing part (141) for fixing the movable clamp plate (21) is arranged on the clamp (1), a connecting assembly (11) is arranged on the clamp (1), a mounting opening (116) with an adjustable opening size is arranged on the connecting assembly (11), the connecting assembly (11) comprises a hinge rod (111), a limiting rod (112) and a connecting plate (113), and the hinge rod (111) is connected with the limiting rod (112) through the connecting plate (113), the limiting rod (112) comprises a first limiting rod (114) and a second limiting rod (115), the mounting port (116) is arranged between the first limiting rod (114) and the second limiting rod (115), and the test method comprises the following steps: step 1), moving an articulated rod (111) upwards, moving a movable clamping plate (21), and placing a grid in a mounting groove (23); step 2) adjusting a movable clamping plate (21), fixing the grid by using the movable clamping plate (21) and a static clamping plate (22), simultaneously, rotating and screwing a fixing piece (141), and enabling the fixing piece (141) to move inwards to be in close contact with the movable clamping plate (21); step 3), loosening the hinged rod (111), moving the hinged rod (111) downwards under the action of gravity, and moving the limiting rod (112) inwards to be in contact with the grid; and 4) carrying out a tensile test on the grid.
CN202010406163.5A 2020-05-14 2020-05-14 Test method for performance of grid Active CN111678779B (en)

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CN111678779B CN111678779B (en) 2023-07-04

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CN114739267A (en) * 2022-03-25 2022-07-12 嘉兴艾云软件科技有限公司 Deformation displacement test mechanism based on computer software and hardware
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2742596C1 (en) * 2020-06-19 2021-02-08 Общество С Ограниченной Ответственностью "Тр Инжиниринг" Bench for testing grids and grid panels for stretching in all directions of a grid weaving
CN114739267A (en) * 2022-03-25 2022-07-12 嘉兴艾云软件科技有限公司 Deformation displacement test mechanism based on computer software and hardware
CN114739267B (en) * 2022-03-25 2024-05-03 嘉兴艾云软件科技有限公司 Deformation displacement testing mechanism based on computer software and hardware

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