Automatic lifting device for gunpowder methyl violet stability test

Abstract

The invention discloses an automatic lifting device for a gunpowder methyl violet stability test, which comprises a thermostat, two vertical guide rails fixed on the two sides of the upper surface of the thermostat, two sliding blocks respectively connected to the two vertical guide rails in a sliding manner, and two sets of vertical conveyor belts respectively arranged on the front sides of the two vertical guide rails, the two ends of the test tube rack are fixed to the two sliding blocks respectively, the rotating shaft is rotationally connected to the upper ends of the two vertical guide rails, the synchronous belt wheel is fixed to the middle of the rotating shaft, and the rotating motor is connected with the synchronous belt wheel through a conveying belt; the two ends of the rotating shaft are connected with driving wheels at the upper ends of the two vertical conveying belts correspondingly, and the two sliding blocks are fixed to the conveying belts of the two vertical conveying belts correspondingly. The rotating motor drives the rotating shaft to rotate through a synchronous belt wheel, so that the two sets of vertical conveying belts drive the test tube rack to vertically move through the two sliding blocks. The automatic lifting device for the gunpowder methyl violet test effectively solves the problem of gunpowder stability test.

Description

Technical Field

[0001] The invention relates to an automatic lifting device for a gunpowder methyl violet stability test and belongs to the technical field of gunpowder stability processing. Background Art

[0002] The methyl violet stability test is one of the important analytical items for gunpowder. The principle of the methyl violet stability test is as follows: the sample is placed in a special test tube and heated at a specified temperature. The time it takes for the gas released by the thermal decomposition of the test sample to turn the methyl violet test paper from purple to orange, or whether the sample explodes after continuous heating for 5 hours, is used to indicate the chemical stability of the sample.

[0003] For many years, the gunpowder methyl violet test has used a manual method of continuously extracting methyl violet from a special test tube and observing the color change of the test paper to determine the endpoint. This inherently poses a safety hazard: the sample is continuously heated at high temperature, and there is a possibility of explosion; the special test tube for methyl violet is made of glass, and if an explosion occurs, it can easily injure the analyst; during the test, the analyst directly extracts the special test tube by hand, and can only manually extract one test tube at a time. The close-range operation endangers the personal safety of the analyst.

[0004] In light of the lessons learned from multiple explosion accidents that occurred when testing the stability of methyl violet in a series of gunpowder products, and based on the existing methyl violet testing conditions, an automatic lifting device was designed and manufactured to carry out the methyl violet testing of gunpowder. Summary of the Invention

[0005] The purpose of the present invention is to solve the safety and quality problems of workers directly contacting high-temperature heated powder particles, closely checking the heating temperature, extracting test tubes and observing the color of test paper when testing the stability of gunpowder using a traditional methyl violet tester, and low analysis efficiency. For this purpose, an automatic lifting device for the methyl violet stability test of gunpowder is provided.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] The present invention provides an automatic lifting device for a methyl violet stability test of gunpowder, comprising a thermostat, two vertical guide rails fixed on both sides of the upper surface of the thermostat, two sliders slidably connected to the two vertical guide rails, two sets of vertical conveyor belts respectively arranged in front of the two vertical guide rails, a test tube rack with both ends respectively fixed to the two sliders, a rotating shaft rotatably connected to the upper ends of the two vertical guide rails, a synchronous pulley fixed in the middle of the rotating shaft, and a rotating motor connected to the synchronous pulley via a conveyor belt.

[0008] The upper surface of the thermostat is provided with a group of test tube insertion holes, and the test tube rack is provided with a group of test tube clamping holes corresponding to the upper surface of the thermostat;

[0009] The two ends of the rotating shaft are respectively connected to the driving wheels at the upper ends of the two sets of vertical conveyor belts, and the two sliders are respectively fixed to the conveyor belts of the two sets of vertical conveyor belts;

[0010] The rotating motor drives the rotating shaft to rotate via a synchronous pulley, so that the two sets of vertical conveyor belts drive the test tube rack to move vertically via two sliding blocks.

[0011] The two vertical guide rails are both provided with an upper limit block and a lower limit block for limiting the vertical sliding position of the slider, so as to prevent the test tube from being damaged due to controlling the movement position of the test tube rack to be too large.

[0012] Working process

[0013] When testing the stability of gunpowder methyl violet, first, the rotating motor drives the rotating shaft to rotate through the synchronous pulley, so that the two sets of vertical conveyor belts drive the test tube rack to move vertically upward to the upper limit block position through the two sliders; the special test tubes filled with gunpowder are installed in the test tube clamping holes of the test tube rack, and then the rotating motor drives the test tube rack to move vertically upward to the lower limit block position, so that each test tube is inserted into the test tube insertion hole on the upper surface of the thermostat, so that the test tube is heated in the thermostat; the rotating motor drives the test tube rack to move vertically upward to the upper limit block position, and the color of the test paper in the test tube can be observed.

[0014] Beneficial effects:

[0015] The automatic lifting device of the present invention effectively solves the bottleneck problem of gunpowder stability testing, is easy to operate, and is suitable for large-scale sample analysis. The automatic lifting device for the processed gunpowder methyl violet test simultaneously observes the test paper color and sample status of a batch of samples, eliminating the key factor of analysts having to directly contact the samples. This saves time and effort, reduces operator labor intensity, improves analysis efficiency, and enhances product testing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the automatic lifting device of the present invention;

[0017] In the figure, 1-rotating motor, 2-rotating shaft, 3-synchronous pulley, 4-vertical conveyor belt, 5-slider, 6-upper limit block, 7-lower limit block, 8-vertical guide rail, 9-test tube rack, 10-thermostat. DETAILED DESCRIPTION

[0018] The following is a further description of the multifunctional utility model with reference to the accompanying drawings and embodiments.

[0019] Example

[0020] like Figure 1As shown, an automatic lifting device for a methyl violet stability test of explosives of the present invention comprises a thermostat 10, two vertical guide rails 8 fixed on both sides of the upper surface of the thermostat 10, two sliders 5 slidably connected to the two vertical guide rails 8, two sets of vertical conveyor belts 4 respectively provided in front of the two vertical guide rails 8, a test tube rack 9 with its ends respectively fixed to the two sliders 5, a rotating shaft 2 rotatably connected to the upper ends of the two vertical guide rails 8, a synchronous pulley 3 fixed in the middle of the rotating shaft 2, and a rotating motor 1 connected to the synchronous pulley 3 via a conveyor belt;

[0021] The upper surface of the thermostat 10 is provided with a group of test tube insertion holes, and the test tube rack 9 is provided with a group of test tube clamping holes corresponding to the upper surface of the thermostat 10;

[0022] The two ends of the rotating shaft 2 are respectively connected to the driving wheels at the upper ends of the two sets of vertical conveyor belts 4, and the two sliders 5 are respectively fixed to the conveyor belts of the two sets of vertical conveyor belts 4;

[0023] The rotating motor 1 drives the rotating shaft 2 to rotate via the synchronous pulley 3 , so that the two sets of vertical conveyor belts 4 drive the test tube rack 9 to move vertically via two sliders 5 .

[0024] The two vertical guide rails 8 are both provided with an upper limit block 6 and a lower limit block 7 for limiting the vertical sliding position of the slider 5 to prevent the test tubes from being damaged due to controlling the test tube rack 9 to move too much.

[0025] Working process

[0026] When testing the stability of gunpowder methyl violet, first, the rotating motor 1 drives the rotating shaft 2 to rotate through the synchronous pulley 3, so that the two sets of vertical conveyor belts 4 drive the test tube rack 9 to move vertically upward to the position of the upper limit block 6 through two sliders 5; the special test tubes filled with gunpowder are installed in the test tube clamping holes of the test tube rack 9, and then the rotating motor 1 drives the test tube rack 9 to move vertically upward to the position of the lower limit block 7, so that each test tube is inserted into the test tube insertion hole on the upper surface of the thermostat 10, so that the test tube is heated in the thermostat 10; the rotating motor 1 drives the test tube rack 9 to move vertically upward to the position of the upper limit block 6, and the color of the test paper in the test tube can be observed.

Claims

1. An automatic lifting device for the stability test of gunpowder methyl violet, characterized in that: The invention comprises a thermostat, two vertical guide rails fixed on both sides of the upper surface of the thermostat, two sliders slidably connected to the two vertical guide rails, two sets of vertical conveyor belts respectively arranged in front of the two vertical guide rails, a test tube rack with its ends respectively fixed to the two sliders, a rotating shaft rotatably connected to the upper ends of the two vertical guide rails, a synchronous pulley fixed in the middle of the rotating shaft, and a rotating motor connected to the synchronous pulley via a conveyor belt; The upper surface of the thermostat is provided with a group of test tube insertion holes, and the test tube rack is provided with a group of test tube clamping holes corresponding to the upper surface of the thermostat; The two ends of the rotating shaft are respectively connected to the driving wheels at the upper ends of the two sets of vertical conveyor belts, and the two sliders are respectively fixed to the conveyor belts of the two sets of vertical conveyor belts; The rotating motor drives the rotating shaft to rotate via a synchronous pulley, so that the two sets of vertical conveyor belts drive the test tube rack to move vertically via two sliding blocks.

2. The automatic lifting device for the gunpowder methyl violet stability test according to claim 1, characterized in that: The two vertical guide rails are both provided with an upper limit block and a lower limit block for limiting the vertical sliding position of the slider, so as to prevent the test tube from being damaged due to controlling the movement position of the test tube rack to be too large.

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