CN216955539U

CN216955539U - Testing arrangement of quick convenient test lead alloy creep performance

Info

Publication number: CN216955539U
Application number: CN202220366561.3U
Authority: CN
Inventors: 焦凯; 史俊雷; 高国兴; 邓国强
Original assignee: Camel Group Xiangyang Storage Battery Co Ltd
Current assignee: Camel Group Xiangyang Storage Battery Co Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-12
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a testing device for rapidly and conveniently testing creep property of lead alloy. Belonging to the technical field of lead alloy creep property test. The method mainly solves the problem that long time is needed for judging the creep period of the lead alloy through a battery life test at present. It is mainly characterized in that: the device comprises an environment box and a temperature control system thereof, an upper pull rod, a lower pull rod, an up-down extension device, a grating sensor, a tension control system and a master control and data processing system; the grating sensor is arranged below the outside of the environment box; the upper pull rod and the lower pull rod are respectively provided with an upper fixing pin and a lower fixing pin; the upper and lower extension devices are connected with the lower fixing pins; the tension control system is connected with the lower pull rod; and the master control and data processing system is electrically connected with the grating sensor, the tension control system and the temperature control system. The utility model has the advantages of simple structure, convenient operation, greatly shortened creep test time, stable loading, high precision and the like, and is mainly used for testing the lead alloy creep performance of the lead-acid storage battery.

Description

Testing arrangement of quick convenient test lead alloy creep property

Technical Field

The utility model belongs to the technical field of lead alloy creep property testing, and particularly relates to a testing device for quickly and conveniently testing the creep property of lead alloy of a lead-acid storage battery, which is used for testing the creep resistance of the lead alloy.

Background

In the process of carrying out deep cycle life of the lead-acid storage battery, the active substance on the polar plate can cause volume change due to density change of the active substance in the charging and discharging process, certain stress can be generated on the plate grid when the active substance expands, and the phenomenon of 'growing up' of the polar plate can occur after long-time action. The growth of the positive plate can lead the creep resistance of the grid to be reduced rapidly, the growth speed of the positive plate depends on the creep resistance of the lead alloy, the growth speed of the lead alloy with good creep resistance is slow, and the service life of the battery is prolonged.

Therefore, the creep performance of the lead alloy is tested under the action of certain temperature and stress, and the creep rate and the time from creep to failure are calculated, so that a theoretical basis can be provided for the improvement research on the creep performance of the lead alloy. At present, many enterprises comprehensively judge the creep resistance of the lead alloy by testing the corrosion resistance of the lead alloy and combining the actual service life of the battery, and because the test period of the battery life is longer and requires 2-3 months, the creep deformation can reach 5-10% only in 2-3 months, which is not beneficial to the improvement and research of the creep resistance of the lead alloy, therefore, a device for quickly and conveniently testing the creep resistance of the lead alloy is developed, and the device has certain guiding significance for further research and improvement of the creep resistance of the lead alloy of the storage battery by storage battery research and development enterprises.

Disclosure of Invention

The utility model aims to provide a device for quickly and conveniently testing the creep property of lead alloy, which can quickly and conveniently test the creep property of lead alloy so as to further research and improve the creep property of lead alloy of a storage battery.

The technical solution of the utility model is as follows: the utility model provides a quick convenient testing arrangement of test lead alloy creep performance which characterized in that: the environment-friendly and energy-saving type optical fiber grating sensor comprises an environment box, a temperature control system of the environment box, an upper pull rod fixed at the top in the environment box, a lower pull rod arranged at the lower part in the environment box, an upper extension device, a lower extension device, a grating sensor, a tension control system and a master control and data processing system; the grating sensor is arranged below the outside of the environment box; the upper pull rod and the lower pull rod are respectively provided with an upper fixing pin and a lower fixing pin; the upper and lower extension devices are connected with the lower fixing pins; the tension control system is connected with the lower pull rod; and the master control and data processing system is electrically connected with the grating sensor, the tension control system and the temperature control system.

The temperature control system in the technical scheme of the utility model comprises a temperature control circuit, a thermocouple and a heater which are arranged in an environment box.

The up-down extension device in the technical scheme of the utility model is a connecting straight rod.

The tension control system in the technical scheme of the utility model is a material testing machine.

The master control and data processing system in the technical scheme of the utility model comprises a data acquisition circuit, a data processing circuit and a data display circuit, wherein the data acquisition circuit acquires data of corresponding channels.

In the technical scheme of the utility model, the data acquisition circuit is an RXD2 integrated circuit, the data processing circuit is an RXA integrated circuit, and the data display circuit is an LED display.

The up-down extension device in the technical scheme of the utility model is a connecting straight rod made of 304 stainless steel.

In the technical scheme of the utility model, the number of the upper fixing pins and the lower fixing pins is 2 respectively; the number of the up-down extension devices is 2, and the up-down extension devices are respectively and fixedly connected to 2 lower fixing pins.

The two grating sensors are symmetrically arranged on two sides of the up-down extension device.

The two grating sensors are symmetrically arranged in the outer circular interfaces of the 2 up-down extension devices and are fixed on the up-down extension devices by screws.

The utility model adopts a test device for rapidly and conveniently testing the creep property of lead alloy, which consists of an environment box and a temperature control system thereof, an upper pull rod, a lower pull rod, an up-down extension device, a grating sensor, a tension control system and a master control and data processing system, wherein the upper pull rod is fixed at the top in the environment box, the lower pull rod is arranged at the lower part in the environment box, the grating sensor is arranged below the outside of the environment box, the upper pull rod and the lower pull rod are respectively provided with an upper fixed pin and a lower fixed pin, the up-down extension device is connected with the fixed pins, the tension control system is connected with the lower pull rod, the master control and data processing system is electrically connected with the grating sensor, the tension control system and the temperature control system, thus when the creep property of lead alloy is tested, the lead alloy is made into a lead alloy sample of a national standard sample, and the lead alloy sample is fixed between the upper fixed pin and the lower fixed pin, the temperature in the environmental chamber is controlled within a set temperature range through the temperature control system, the lower pull rod is controlled through the tension control system to enable the lead alloy sample to reach a set tension value, the control and data processing system can automatically collect creep endurance test temperature, the tension value and deformation data and calculate creep rate, the creep deformation amount can reach 5-10% only in 2-3 days, and creep performance test is completed.

The utility model has the advantages of simple structure, convenient operation, greatly shortened creep test time, stable loading, high precision and the like, and is mainly used for testing the lead alloy creep performance of the lead-acid storage battery.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an upper pull rod; 2. a lower pull rod; 3. an upper fixing pin; 4. a lower fixing pin; 5. a reach-down device; 6. a lead alloy sample; 7. a grating sensor; 8. a thermocouple; 9. a temperature control system; 10. an environmental chamber; 11. a tension control system; 12. a master control and data processing system; 12-1. RXD2 integrated circuit; 12-2. RXA integrated circuit; 12-3. LED display; 13. a heater.

Detailed Description

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and all other embodiments obtained without inventive labor for those skilled in the art are within the protection scope of the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1. The utility model discloses an embodiment of a testing device for rapidly and conveniently testing the creep property of a lead alloy, which comprises an environment box 10 and a temperature control system thereof, an upper pull rod 1, a lower pull rod 2, an upper extension device 5, a lower extension device 5, a grating sensor 7, a tension control system 11 and a master control and data processing system 12.

The tension control system 11 is a 50KN universal material testing machine, comprises a tension arm in the vertical direction and a setting panel, and controls the upper pull rod 1 and the lower pull rod 2 through electric wires and signal wires to enable a sample to reach an actual setting tension.

The environment box 10 is a closed box body with an opening at the bottom of the box and is fixed on a testing machine frame or a fixed support above a tension arm. The environmental chamber 10 is provided with a chamber door on the side for easy operation. The upper pull rod 1 is fixed on the top of the

environment box

10, and 2 upper fixing pins 3 are symmetrically arranged on the upper pull rod. The lower pull rod 2 is fixed at the upper end of the pull arm and is positioned at the lower part in the

environment box

10, and 2 lower fixing pins 4 are symmetrically arranged on the lower pull rod. The lower pull rod 2 is positioned under the

upper pull rod

1, 2 upper fixing pins 3 of the upper pull rod 1 are respectively opposite to 2 lower fixing pins 4 of the lower pull rod 2, and two groups of lead alloy samples 6 are formed and fixed.

The temperature control system includes a temperature control circuit 9, a thermocouple 8, and a heater 13. The thermocouple 8 is arranged in the environment box 10 and is close to the upper pull rod 1. The heater 13 adopts the stainless steel heating pipe, and 2 heaters 13 are respectively arranged at the middle upper part and the lower part of the side wall of the environment box 10. The temperature control circuit 9 adopts a 0.1-grade temperature controller with an AI808 model, comprises a temperature setting panel, is connected with the thermocouple 8 and the heater 13 through wires and signal wires, and controls the thermocouple 8 and the heater 13 to heat the environment box 10 to reach the actually set temperature of 25-80 ℃ through the temperature setting panel.

The lead alloy sample 6 is a national standard sample made of lead alloy and is in the shape of a bar. Two lead alloy samples 6 are fixed between the upper fixing pin 3 and the lower fixing pin 4 of the two sets respectively. During installation, after two ends of the lead alloy sample 6 are respectively placed into the chuck body, the middle gasket with proper thickness is selected according to the thickness of the lead alloy sample 6, and then the upper fixing pin 3 and the lower fixing pin 4 are used for locking and fixing the lead alloy sample 6, so that the fixing holes at the two ends of the lead alloy sample 6 are ensured not to deform in the stretching process, and the sample is positioned at the center of the environment box 10.

The upper and lower extension devices 5 are connecting straight rods made of 304 stainless steel. The upper ends of the 2 up-down extension devices 5 are respectively fixedly connected to 2 lower fixing pins 4 and connected with the lead alloy sample 6 through the lower fixing pins 4. The upper and lower extension devices 5 pass through the bottom opening of the environmental chamber 10.

The two grating sensors 7 are arranged below the outside of the environment box 10, symmetrically arranged in circular interfaces on the outer sides of the 2 up-down extending devices 5 and fixed on the up-down extending devices 5 by screws.

The master control and data processing system 12 includes a data acquisition circuit, a data processing circuit, and a data display circuit for acquiring data of corresponding channels, and is a conventional control and data processing system. The data acquisition circuit is an RXD2 integrated circuit 12-1 for acquiring corresponding channel data, the data processing circuit is an RXA integrated circuit 12-3 for converting acquired binary numbers into decimal numbers, and the data display circuit is an LED display 12-3. The master control and data processing system 12 is electrically connected with the grating sensor 7, the tension control system 11 and the temperature control circuit 9. The master control and data processing system 12 can automatically collect creep rupture test temperature, tension value, deformation data and calculate creep rate.

Lead alloy sample 6 is locked through upper and lower fixed

pins

3, 4, and through upper pull rod 1, lower pull rod 2 is in the vertical state, and adjust upper pull rod 1, the position makes lead alloy sample 6 be in environment case 10 center around the lower pull rod 2, when carrying out the creep test to lead alloy sample 6, set for the temperature through the temperature setting panel on the temperature control system 9 earlier, after heater 13 heats to make and reach the settlement temperature in the environment case 10, rethread pulling force control system 11 sets for the required pulling force of experiment, above-mentioned temperature, behind the setting of pulling force parameter, start the setup procedure, observe numerical value change on total control and data processing system 12, whether the state in the state information display area is normal. The equipment can automatically heat and preserve heat according to the requirement of a test scheme, when the temperature reaches a set temperature, the tensile force is loaded to the set value, the creep displacement generated by the lead alloy sample 6 is transmitted to the master control and data processing system 12 through the grating sensor 7 on the up-down extension device 5, and the relevant data is recorded to obtain a creep curve, the creep deformation amount can reach 5-10% only in 2-3 days, at the moment, the creep test is finished, the relevant data of creep can be calculated in the master control and data processing system 12, the equipment automatically carries out the operations of cooling, unloading, stopping data recording and the like, and manual intervention is not needed. A plurality of samples can be tested simultaneously, if the test time is required to be shortened, the creep test process is accelerated, the temperature and the tension can be further increased through the temperature control system 9 and the tension control system 11, the creep test time can be saved, the creep test time can be shortened to 1-2 days, and the research and development efficiency is improved. The device is suitable for long-time experiment requirements, guarantees creep testing precision, can quickly test in a short time, reduces testing cost, and has the advantages of simple structure, convenience in operation, stability in loading, high precision and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a quick convenient testing arrangement of test lead alloy creep performance which characterized in that: the device comprises an environment box (10), a temperature control system, an upper pull rod (1) fixed at the top in the environment box (10), a lower pull rod (2) arranged at the lower part in the environment box (10), an up-down extension device (5), a grating sensor (7), a tension control system (11) and a master control and data processing system (12); the grating sensor (7) is arranged below the outside of the environment box (10); the upper pull rod (1) and the lower pull rod (2) are respectively provided with an upper fixed pin (3) and a lower fixed pin (4); the upper and lower extension devices (5) are connected with the lower fixing pins (4); the tension control system (11) is connected with the lower pull rod (2); and the master control and data processing system (12) is electrically connected with the grating sensor (7), the tension control system (11) and the temperature control system.

2. The test device for rapidly and conveniently testing the creep property of the lead alloy according to claim 1, is characterized in that: the temperature control system comprises a temperature control circuit (9), a thermocouple (8) and a heater (13) which are arranged in an environment box (10).

3. The test device for rapidly and conveniently testing the creep property of the lead alloy according to claim 1, is characterized in that: the up-down extension device (5) is a connecting straight rod.

4. The device for rapidly and conveniently testing the creep property of the lead alloy according to claim 1, wherein: the tension control system (11) is a material testing machine.

5. The test device for rapidly and conveniently testing the creep property of the lead alloy according to claim 1, is characterized in that: the master control and data processing system (12) comprises a data acquisition circuit, a data processing circuit and a data display circuit for acquiring data of corresponding channels.

6. The test device for rapidly and conveniently testing the creep property of the lead alloy according to claim 5, is characterized in that: the data acquisition circuit is an RXD2 integrated circuit (12-1), the data processing circuit is an RXA integrated circuit (12-2), and the data display circuit is an LED display (12-3).

7. The test device for rapidly and conveniently testing the creep property of the lead alloy according to claim 3, is characterized in that: the up-down extension device (5) is a connecting straight rod made of 304 stainless steel.

8. The device for rapidly and conveniently testing the creep property of the lead alloy according to any one of claims 1 to 7, wherein: 2 upper fixing pins (3) and 2 lower fixing pins (4) are arranged respectively; the number of the up-down extension devices (5) is 2, and the up-down extension devices are respectively and fixedly connected to 2 lower fixing pins (4).

9. The device for rapidly and conveniently testing the creep property of the lead alloy according to any one of claims 1 to 7, wherein: the two grating sensors (7) are symmetrically arranged on two sides of the upper and lower extended devices (5).

10. The device for rapidly and conveniently testing the creep property of the lead alloy according to claim 8, is characterized in that: the two grating sensors (7) are symmetrically arranged in the outer circular interfaces of the 2 up-down extending devices (5) and are fixed on the up-down extending devices (5) by screws.