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CN-224216657-U - Single vertical combustion test device

CN224216657UCN 224216657 UCN224216657 UCN 224216657UCN-224216657-U

Abstract

The utility model discloses a single vertical combustion test device which comprises a combustion assembly, a sample positioning mechanism and a data acquisition assembly. The combustion assembly is composed of a burner vertically arranged below the specimen positioning mechanism and a blower connected to the bottom of the burner to regulate the flame. The sample positioning mechanism comprises an assembly frame, a fixed frame, a lifting assembly and a turnover assembly, wherein the lifting assembly drives the assembly frame to lift, the fixed frame is rotatably installed through an assembly pin shaft, and the turnover assembly realizes sample angle adjustment and self-locking positioning. The data acquisition assembly comprises an upper mounting bracket, a lower mounting bracket and detection equipment, and respectively monitors flame parameters and the combustion state of the sample. The device has advantages of accurate flame control, flexible sample positioning, comprehensive data acquisition and the like, is suitable for testing the flame retardant property of materials such as cables, plastics and the like, and has high detection reliability.

Inventors

  • LIU JIAN
  • WANG ZHENWEI
  • WANG SHAN
  • GUO DIAN
  • ZHANG FENGBIN
  • LIU WEIBIN

Assignees

  • 邢台龙嘉电子设备科技有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (6)

  1. 1. A single vertical combustion test device is characterized by comprising a combustion assembly, a sample positioning mechanism and a data acquisition assembly which are arranged above the combustion assembly, The combustion assembly comprises a combustor (11) and a blower (12), wherein the combustor (11) is arranged right below the sample positioning mechanism and is arranged along the vertical direction, and the blower (12) is assembled and connected to the bottom of the combustor (11); The sample positioning mechanism comprises an assembly frame (21), a fixed frame (22), a lifting assembly and a turnover assembly, wherein the assembly frame (21) is mounted on the lifting assembly and driven by the lifting assembly to move up and down along the vertical direction, two sides of the fixed frame (22) are fixedly connected with assembly pins (221) arranged along the central line of the fixed frame (22), the assembly pins (221) are rotatably mounted on the central line of the assembly frame (21), a material sample for a combustion test is nested and fixed in the fixed frame (22), the turnover assembly comprises a worm wheel (241) and a worm (242) which are matched and combined, and the worm wheel (241) is coaxially fixedly connected with one group of the assembly pins (221); the data acquisition assembly comprises an upper mounting bracket (31), a lower mounting bracket (32) and a plurality of groups of detection equipment assembled on the upper mounting bracket (31) and the lower mounting bracket (32), wherein the upper mounting bracket (31) is arranged right above the sample positioning mechanism, and the lower mounting bracket (32) is fixedly installed at the bottom of the assembly frame (21).
  2. 2. The single vertical combustion test device according to claim 1, further comprising a hood (4), wherein an upper assembly chamber (41), a combustion chamber (42) and a lower assembly chamber (43) which are sequentially arranged from top to bottom are arranged in the hood (4), the burner (11), the assembly frame (21), the fixing frame (22) and the data acquisition assembly are uniformly distributed in the combustion chamber (42), the upper mounting bracket (31) is fixedly mounted at the center of the top of the combustion chamber (42), a smoke exhaust pipe (421) is connected to the top of the combustion chamber (42) in a matched mode, and the air blower (12) is fixedly mounted in the lower assembly chamber (43).
  3. 3. A single vertical combustion test apparatus according to claim 2, wherein the lifting assembly comprises a guide rod (231), an adjusting screw (232) and an adjusting motor A (233), the guide rod (231) is fixedly installed at the corner position of the combustion chamber (42) and is arranged along the vertical direction, the adjusting screw (232) is rotatably installed at two sides inside the combustion chamber (42), the assembling frame (21) is in sliding connection with the guide rod (231), the adjusting screw (232) is in rotary connection with the assembling frame (21), the top ends of the groups of adjusting screws (232) are fixedly connected with synchronous wheels (234) arranged in the upper assembling chamber (41), the synchronous wheels (234) are in power connection through synchronous belts (235), the adjusting motor A (233) is fixedly installed in the upper assembling chamber (41), a driving bevel gear A (236) is fixedly connected to the output shaft of the adjusting motor A (233), and a transmission bevel gear A (237) which is fixedly connected with the top end of one group of adjusting screws (232) is fixedly connected with the driving bevel gear A (236).
  4. 4. A single vertical combustion test apparatus according to claim 2, wherein the turnover assembly further comprises a spline shaft (243) and an adjusting motor B (244), the spline shaft (243) is rotatably mounted in the combustion chamber (42) and is arranged in the vertical direction, the worm (242) is rotatably mounted on the assembly frame (21) and is in sliding connection with the spline shaft (243), a transmission bevel gear B (246) arranged in the upper assembly chamber (41) is fixedly connected to the top end of the spline shaft (243), and a driving bevel gear B (245) meshed with the transmission bevel gear B (246) is fixedly mounted in the upper assembly chamber (41) and fixedly connected to the output shaft.
  5. 5. A single vertical combustion test apparatus according to claim 1, wherein a plurality of groups of assembling lugs (222) are fixedly connected at the corner positions of the fixed frame (22), vertically arranged fastening bolts (223) are screwed on the assembling lugs (222), and gaskets (224) are fixedly connected at the bottoms of the fastening bolts (223).
  6. 6. A single vertical combustion test apparatus according to claim 2, wherein a control chamber (44) arranged at one side of the combustion chamber (42) is further arranged in the housing (4), an electronic display screen (441) exposed to the outside of the housing (4) is arranged in the control chamber (44), and the detection device comprises an infrared thermometer (331) and an industrial camera (332).

Description

Single vertical combustion test device Technical Field The utility model relates to the technical field of combustion tests, in particular to a single vertical combustion test device. Background With the development of modern industry, especially the fields of power, communication, construction and the like, the requirements on the flame retardant performance of cables and other materials are increasingly strict, and the flame retardant performance test becomes an important link of material safety evaluation. The single vertical combustion test is one of the common methods for evaluating the flame retardant property of the material, and the key indexes such as the combustion rate, flame propagation, self-extinguishing property and the like of the material are detected by simulating the combustion behavior of the material in a vertical state, so that a safety basis is provided for the practical application of the material. Currently, existing vertical burn test apparatus generally include a burner, a sample clamping mechanism, and a data acquisition system. However, these devices still have the following technical drawbacks in practical application, and conventional burners mostly use manual adjustment of fuel and air flow, so that it is difficult to realize accurate control of flame height, temperature and combustion time, resulting in poor repeatability of test results and affecting reliability of data. The sample fixture is mostly fixed design, can't adjust the height or the inclination of sample, has restricted the diversified demand of different test standards to sample position and flame action angle. The temperature measurement or camera equipment of the existing device is mostly directly exposed to a high-temperature environment, is easy to be interfered or damaged by heat, and lacks of real-time monitoring on the temperature and the burning form of the back surface of a sample, so that the data integrity is insufficient. The high temperatures generated by combustion tend to affect the proper operation of the transmission components, whereas conventional devices lack an effective insulation design and may cause component aging or failure over time. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide a single vertical combustion test device which has remarkable advantages in the aspects of flame control, sample positioning, data acquisition, structural stability and the like, can be widely applied to flame retardant performance tests of materials such as cables, plastics, textiles and the like, and provides a high-precision and high-reliability detection means for the industry. The technical scheme adopted by the utility model for achieving the purpose is that the single vertical combustion test device comprises a combustion assembly, a sample positioning mechanism and a data acquisition assembly, wherein the sample positioning mechanism and the data acquisition assembly are arranged above the combustion assembly. The combustion assembly comprises a combustor and a blower, wherein the combustor is arranged right below the sample positioning mechanism and is arranged along the vertical direction, and the blower is assembled and connected to the bottom of the combustor. The sample positioning mechanism comprises an assembly frame, a fixed frame, a lifting assembly and a turnover assembly, wherein the assembly frame is mounted on the lifting assembly and driven by the lifting assembly to move up and down along the vertical direction, assembly pin shafts arranged along the central line of the assembly frame are fixedly connected to two sides of the fixed frame, the assembly pin shafts are rotatably mounted on the central line of the assembly frame, material samples for combustion tests are nested and fixed in the fixed frame, the turnover assembly comprises a worm wheel and a worm rod which are matched and combined, and the worm wheel is coaxially fixedly connected with one group of assembly pin shafts. The data acquisition assembly comprises an upper mounting bracket, a lower mounting bracket and a plurality of groups of detection equipment assembled on the upper mounting bracket and the lower mounting bracket, wherein the upper mounting bracket is arranged right above the sample positioning mechanism, and the lower mounting bracket is fixedly installed at the bottom of the assembly frame. On the basis of the technical scheme, the following technical scheme is provided for ensuring that all the components can be stably assembled and realizing the matched combination and stable operation of all the components. The novel energy-saving combustion engine is characterized by further comprising an organic hood, wherein an upper assembly chamber, a combustion chamber and a lower assembly chamber are sequentially arranged in the hood from top to bottom, the combustor, the assembly frame, the fixed frame and the data acquisition assembly are uniformly distributed