Polar plate falling strength detection tool

Abstract

The utility model relates to a tool for detecting the falling strength of a polar plate. Belongs to the technical field of storage battery production equipment. The problems that the detection accuracy of an existing method is greatly influenced by human factors, and the labor intensity of manual repeated squatting and standing is large are mainly solved. The device is mainly characterized by comprising a test board, a support rod, a support plate, a cylinder assembly and a cylinder pedal, wherein the bottom of the support rod is fixed on the test board; the air cylinder assembly is fixed to the top of the supporting rod. The supporting plates are two L-shaped plates which are symmetrically arranged, and the upper ends of the supporting plates are fixed to telescopic screw rods on the two sides of the air cylinder assembly respectively. The cylinder pedal is located beside the test bench and is connected with the cylinder assembly through an air pipe. The device has the characteristics of simple structure, simplicity and convenience in operation, capability of quickly evaluating the mechanical strength quality of the polar plate, elimination of the influence of human factors on the accuracy of a test result and reduction of the labor intensity of operators, and is mainly used for testing the mechanical strength of the cured dry raw plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production and relates to a plate mechanical strength tester, in particular to a plate drop strength detection tool. Background Art

[0002] During the cycle of lead-acid batteries, there will be failure modes such as softening and shedding of active materials, vibration paste loss, and grid corrosion. This is closely related to the bonding strength between the grid and the active material. In the factory, the quality of the plate is mainly controlled by monitoring the mechanical strength of the cured dry plate.

[0003] At present, the commonly used plate mechanical strength test method is: manually lift the weighed plate to a fixed height of 1m, let go and let the plate fall freely to a dedicated plane, and weigh the plate after doing it for a specified number of times. The mechanical strength quality of the plate is evaluated based on the weight loss ratio before and after the fall. The accuracy of this method is greatly affected by human factors, namely, the plate does not fall horizontally, the number of falls is difficult to monitor, and the paste falls off before the specified number of falls, making the dedicated plane uneven. At the same time, the labor intensity of manually squatting and standing up repeatedly is relatively high. Summary of the invention

[0004] The purpose of the utility model is to provide a plate drop strength detection tool to address the above-mentioned deficiencies, which can quickly evaluate the mechanical strength quality of the plate, eliminate the influence of human factors on the accuracy of the test results, and reduce the labor intensity of operators.

[0005] The technical solution of the utility model is: a plate drop strength detection tool, which is characterized by: comprising a test bench, a support rod, a support plate, a cylinder assembly and a cylinder pedal; wherein the bottom of the support rod is fixed on the test bench; the cylinder assembly is fixed on the top of the support rod; the support plate is two symmetrically arranged L-shaped plates, and the upper ends of the support plates are respectively fixed on the retractable screws on both sides of the cylinder assembly; the cylinder pedal is located next to the test bench and is connected to the cylinder assembly through an air pipe.

[0006] The cylinder assembly described in the technical solution of the utility model is fixed above the support rod through a mounting plate.

[0007] The upper ends of the support plates described in the technical solution of the utility model are respectively located on both sides of the mounting plate.

[0008] The spacing between the support plates described in the technical solution of the utility model matches the width or length of the electrode plate to be tested.

[0009] The upper surface of the test bench described in the technical solution of the utility model is a test surface, and the test surface is a plane.

[0010] The test bench described in the technical solution of the utility model is made of stainless steel, in the shape of a rectangular plate, and has a thickness of 50 mm.

[0011] The support rod described in the technical solution of the utility model is located in the middle of one side of the test bench.

[0012] The height of the support rod described in the technical solution of the utility model is 2m.

[0013] The support plate described in the technical solution of the utility model is 1.8m away from the upper surface of the test bench.

[0014] The cylinder assembly described in the technical solution of the utility model is a single-axis bidirectional cylinder.

[0015] The utility model adopts a plate drop strength detection tool composed of a test bench, a support rod, a support plate, a cylinder assembly and a cylinder pedal, wherein the bottom of the support rod is fixed on the test bench, the cylinder assembly is fixed on the top of the support rod, the support plate is two symmetrically arranged L-shaped plates, and the upper ends of the support plates are respectively fixed on the retractable screws on both sides of the cylinder assembly, the cylinder pedal is located next to the test bench and connected to the cylinder assembly through an air pipe. Therefore, when testing the mechanical strength of the plate, it is only necessary to manually put the weighed plate between the two L-shaped plates and place it on the bottom horizontal plate, and then press the cylinder pedal with the foot, and gas will pass through the air pipe to the cylinder assembly, and the cylinder assembly will control the screw to contract, and the support plates on both sides will open synchronously. The plate will contact the test bench after free fall, and then the plate will be manually picked up for weighing, and the mechanical strength quality of the plate will be evaluated according to the weight loss ratio before and after the fall.

[0016] The utility model has the characteristics of simple structure, easy operation, rapid evaluation of the mechanical strength quality of the plate, elimination of the influence of human factors on the accuracy of the test results and reduction of the labor intensity of the operator, and is mainly used for mechanical strength testing of dry green plates after curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is an enlarged schematic diagram of the local structure of the utility model;

[0019] Numbers in the figure: 1-test bench; 2-support rod; 3-support plate; 4-cylinder assembly; 5-cylinder pedal; 6-air pipe; 7-screw. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 , Figure 2As shown, an embodiment of a plate drop strength testing tool is mainly composed of a test bench 1, a support rod 2, a support plate 3, a cylinder assembly 4 and a cylinder pedal 5.

[0022] The test bench 1 is in the shape of a rectangular plate, made of stainless steel, and 50 mm thick. The upper surface of the test bench 1 is a test surface, which is a flat surface.

[0023] The support rod 2 is in a straight rod shape, and the bottom is fixed at the middle of one side of the test bench 1. The height of the support rod 2 is 2m.

[0024] The cylinder assembly 4 is a uniaxial bidirectional cylinder, and other types of bidirectional cylinders may also be used. The cylinder assembly 4 is fixed to the top of the support rod 2 through a mounting plate, and the mounting plate is a rectangular plate. Both sides of the cylinder assembly 4 are provided with retractable screw rods 7.

[0025] The support plates 3 are two symmetrically arranged L-shaped plates, the upper ends of which are respectively located on both sides of the mounting plate and fixed on the screws 7 on both sides of the cylinder assembly 4. The spacing between the two L-shaped plates matches the width or length of the electrode plate to be tested, and the electrode plate can be placed on the two L-shaped plates when the two screws 7 are in a retracted state. The position where the electrode plates are placed on the two L-shaped plates is 1.8m away from the upper surface of the test bench 1.

[0026] The cylinder pedal 5 is located beside the test bench 1 and is connected to the cylinder assembly 4 through an air pipe 6 . The opening and contraction of the support plate 3 can be controlled by the cylinder pedal 5 .

[0027] During the test, the weighed plate is manually placed on the support plate 3, and the cylinder pedal 5 is pressed with the foot. Gas passes from the air pipe 6 to the cylinder assembly 4, and the cylinder assembly 4 controls the screw 7 to contract. The support plates 3 on both sides are opened synchronously. The plate contacts the test bench 1 after free fall. It is manually picked up and weighed, and the mechanical strength quality of the plate is evaluated based on the weight loss ratio before and after the fall.

Claims

1. A plate drop strength testing tool, characterized by: The invention comprises a test bench (1), a support rod (2), a support plate (3), a cylinder assembly (4) and a cylinder pedal (5); wherein the bottom of the support rod (2) is fixed on the test bench (1); the cylinder assembly (4) is fixed on the top of the support rod (2); the support plate (3) is two symmetrically arranged L-shaped plates, the upper ends of which are respectively fixed on retractable screw rods (7) on both sides of the cylinder assembly (4); the cylinder pedal (5) is located beside the test bench (1) and is connected to the cylinder assembly (4) via an air pipe (6).

2. The plate drop strength testing tool according to claim 1 is characterized by: The cylinder assembly (4) is fixed above the support rod (2) via a mounting plate.

3. The plate drop strength testing tool according to claim 2 is characterized by: The upper ends of the support plates (3) are respectively located on two sides of the mounting plate.

4. The plate drop strength testing tool according to claim 3 is characterized by: The spacing between the support plates (3) matches the width or length of the electrode plate to be tested.

5. A plate drop strength testing tool according to any one of claims 1 to 4, characterized in that: The upper surface of the test bench (1) is a test surface, and the test surface is a plane.

6. The plate drop strength testing tool according to claim 5 is characterized by: The test bench (1) is made of stainless steel and is in the shape of a rectangular plate with a thickness of 50 mm.

7. A plate drop strength testing tool according to any one of claims 1-4 and 6, characterized in that: The support rod (2) is located in the middle of one side of the test bench (1).

8. The plate drop strength testing tool according to claim 7 is characterized by: The height of the support rod (2) is 2m.

9. A plate drop strength testing tool according to any one of claims 1-4, 6, and 8, characterized in that: The support plate (3) is 1.8 m away from the upper surface of the test bench (1).

10. A plate drop strength testing tool according to any one of claims 1-4, 6, and 8, characterized in that: The cylinder assembly (4) is a single-axis bidirectional cylinder.

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