CN110274874B - Rotary friction spark test device for detecting explosion-proof performance of non-spark material - Google Patents
Rotary friction spark test device for detecting explosion-proof performance of non-spark material Download PDFInfo
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- CN110274874B CN110274874B CN201910583431.8A CN201910583431A CN110274874B CN 110274874 B CN110274874 B CN 110274874B CN 201910583431 A CN201910583431 A CN 201910583431A CN 110274874 B CN110274874 B CN 110274874B
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Abstract
The invention relates to the technical field of sparkless material explosion-proof performance detection equipment, and discloses a rotary friction spark test device for sparkless material explosion-proof performance detection, which comprises a tank body, wherein the tank body comprises a fixed part, a sleeve part and a moving part, the open end of the fixed part is connected with the first open end of the sleeve part, and the moving part is arranged in the sleeve part in a sliding manner; when the first connecting end of the moving part is in sealing connection with the first open end of the sleeve part, the volume of the tank body is minimum, and when the second connecting end of the moving part is in sealing connection with the second open end of the sleeve part, the volume of the tank body is maximum. The test device further comprises a first test mechanism and a second test mechanism, wherein the first test mechanism can perform friction test on the outer circumference of the test workpiece, and the second test mechanism can perform friction or impact on the end face of the test workpiece. The invention has the beneficial effects that: the volume of the tank body can be changed according to the requirement, and the rotating friction test and the impact test are combined to meet the test requirements of different standards.
Description
Technical Field
The invention relates to the technical field of equipment for detecting the explosion-proof performance of a sparkless material, in particular to a rotary friction spark test device for detecting the explosion-proof performance of the sparkless material.
Background
At present, explosive gas is inevitably existed in the products applied to the fields of petroleum, chemical industry, pharmacy, coating, metal processing, wood processing and the like. For explosive gases such as methane gas, they may explode if they hit the star fire.
In order to ensure the safety of the state of a product in explosive gas and to investigate whether the product will explode in friction or impactThe explosive gas test is required for the explosive gas detonation. According to the GB/T13813-2008 standard, the volume of the test tank body is regulated to be 1m3The total number of the rotary impact is more than or equal to 16000 times, the gas can not be ignited within the appointed number of the impact, and if the number of the impact does not reach the specified number, the gas is ignited, and the test is carried out again. According to the standard of GBT23163-2008 and GB10686-2013, the volume of the test tank body is regulated to be 0.5m3. To different test standards, need different volumetric test cavity, its jar body volume of current test device is fixed can not change, in order to cooperate different test standards, needs the test device of configuration different volumes, and this has increased test cost to a certain extent. Therefore, it is necessary to develop a rotary friction spark testing device with variable volume to meet the testing requirements of different standards.
Disclosure of Invention
The invention mainly aims to provide a rotary friction spark test device for detecting the explosion-proof performance of a sparkless material, and aims to solve the problems that the volume of the test device in the prior art is fixed and cannot meet different test standards.
The purpose of the invention is realized by the following technical scheme: a rotary friction spark test device for detecting the explosion-proof performance of a sparkless material comprises a tank body, wherein the tank body comprises a fixed part, a sleeve part and a moving part, the open end of the fixed part is connected with the first open end of the sleeve part, and the moving part is arranged in the sleeve part in a sliding manner; when the first connecting end of the moving part is in sealing connection with the first open end of the sleeve part, the volume of the tank body is minimum, and when the second connecting end of the moving part is in sealing connection with the second open end of the sleeve part, the volume of the tank body is maximum.
Further, the door lock further comprises a door lock assembly and a sealing piece; the first connecting end of the moving part is connected with the first opening end of the sleeve part in a sealing mode through the door lock assembly and the sealing piece, and the second connecting end of the moving part is connected with the second opening end of the sleeve part in a sealing mode through the door lock assembly and the sealing piece.
Further, the door lock assembly comprises a door lock main part and a door lock auxiliary part, and the sealing part comprises a first sealing ring and a second sealing ring; the first opening end and the second opening end of the sleeve part are both rotatably provided with a door lock main part, the first connecting end and the second connecting end of the moving part are both provided with a door lock auxiliary part, the opening end of the fixing part or the door lock auxiliary part of the first connecting end of the moving part is provided with a first sealing ring, and the second opening end of the sleeve part or the second connecting end of the moving part is provided with a second sealing ring; when the door lock auxiliary part positioned at the first connecting end of the moving part is embedded into the door lock main part at the first opening end of the sleeve part and the first sealing ring seals a gap between the door lock auxiliary part and the door lock main part, the first connecting end of the moving part is in sealing connection with the first opening end of the sleeve part; when the door lock auxiliary part positioned at the second connecting end of the moving part is embedded into the door lock main part at the second opening end of the sleeve part and the second sealing ring seals a gap between the door lock auxiliary part and the door lock main part, the second connecting end of the moving part is in sealing connection with the second opening end of the sleeve part.
Furthermore, the door lock main part comprises a first main body part, a stop block and a matching tooth, the first main body part is rotatably installed at the first opening end and the second opening end of the sleeve part, the matching tooth is arranged at the outer end of the first main body part, a locking groove is formed in the inner circumference of the first main body part, and the stop block is uniformly distributed at the outer end of the locking groove; the door lock accessory comprises a second main body part and protruding blocks, the second main body part is fixedly mounted on the first connecting end and the second connecting end of the moving part, the protruding blocks are uniformly distributed on the periphery of the second main body part, and the protruding blocks correspond to the locking grooves.
Further, the device also comprises a first convex ring and a second convex ring; the inner periphery of the second opening end of the sleeve part is provided with a first convex ring, the door lock main part is rotatably arranged on the first convex ring, the outer periphery of the second connecting end of the moving part is fixedly provided with a second convex ring, the door lock auxiliary part is fixedly arranged on the second convex ring, and the second sealing ring is arranged on the first convex ring or the second convex ring; when the second connecting end of the moving portion is sealingly connected with the second open end of the sleeve portion, the first and second collars abut.
The door lock further comprises a door lock driving assembly, wherein the door lock driving assembly is mounted at the first opening end and the second opening end of the sleeve part; the door lock driving assembly comprises a hand crank, a first gear, a second gear, a third gear and a first transmission shaft; the handle is connected with the first gear, the first gear is meshed with the second gear, the second gear drives the third gear to rotate through the first transmission shaft, and the third gear drives the door lock main part to rotate.
The sliding device further comprises corresponding sliding rails and sliding pieces, wherein the sliding rails are mounted on the inner wall of the sleeve portion or the outer wall of the moving portion, and the sliding pieces are mounted on the outer wall of the moving portion or the inner wall of the sleeve portion.
Furthermore, the test device also comprises a driving unit and a test unit, wherein the action ends of the driving unit and the test unit penetrate through the outer wall of the fixing part and then are positioned in the inner cavity of the fixing part, and the action ends of the test unit are respectively positioned above and on the opposite side of the action end of the driving unit.
Further, the test unit comprises a first test mechanism and a second test mechanism; the first testing mechanism comprises a first power driving source, a first pressure sensor, a first supporting rod and a first testing piece, the first pressure sensor is mounted on a piston rod of the first power driving source, the piston rod of the first power driving source is connected with one end of the first supporting rod, the other end of the first supporting rod penetrates through the upper side wall of the fixing portion and then is located in an inner cavity of the fixing portion, the first testing piece is fixedly mounted on the other end face of the first supporting rod, and the first testing piece is located above the action end of the driving unit; the second testing mechanism comprises a second power driving source, a second pressure sensor, a second supporting rod and a second testing piece; the second pressure sensor is installed on a piston rod of the second power driving source, the piston rod of the second power driving source is connected with one end of the second supporting rod, the other end of the second supporting rod penetrates through an inner cavity of the fixing portion and then is located in the inner cavity of the fixing portion, the second test piece is fixed to the other end face of the second supporting rod, and the second test piece is arranged opposite to the action end of the driving unit.
Further, the driving unit comprises a driving motor, a second transmission shaft, a torque and rotating speed sensor and a mounting seat for fixing the test workpiece; the output shaft of the driving motor is connected with one end of the second transmission shaft, the other end of the second transmission shaft penetrates through the side wall of the fixing portion and then is located in the inner cavity of the fixing portion, the torque and rotation speed sensor is mounted on the output shaft of the driving motor, the mounting seat is fixedly mounted on the other end face of the second transmission shaft, and the action ends of the driving unit are located above and on the opposite side of the mounting seat respectively.
Compared with the prior art, the invention has the following advantages:
1. the volume of the tank body of the rotary friction spark test device for detecting the explosion-proof performance of the sparkless material is adjustable, the tank body is provided with the fixed part, the sleeve part and the moving part which are communicated with each other, and combustible gas environments with different volumes are simulated by changing the position of the moving part so as to meet the test requirements of different standards and save equipment and labor cost for enterprises.
2. According to the invention, the door lock main part and the door lock auxiliary part are arranged between the first connecting end of the moving part and the first opening end of the sleeve part and between the second connecting end of the moving part and the second opening end of the sleeve part, and the door lock auxiliary part is embedded into the door lock main part by changing the position of the moving part, so that the stability of connection between the door lock main part and the door lock auxiliary part is improved, and the safety of a test is ensured. The door lock driving assembly is further designed, the door lock main part can be driven to rotate by rotating the crank, and the door lock driving assembly is reasonable in design and convenient to operate.
3. The invention is provided with a first testing mechanism and a second testing mechanism, wherein the first testing mechanism can carry out friction test on the outer circumference of a test workpiece, the second testing mechanism can carry out friction or impact on the end face of the test workpiece, and the first testing mechanism and the second testing mechanism are mutually independent and do not interfere with each other. The device can simulate combustible gas environments with different volumes, and combines a rotary friction test and an impact test, so that the device can meet the test requirements of different standards, and saves equipment and labor cost for enterprises.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a tank body of a rotary friction spark testing device for testing the explosion-proof performance of a sparkless material according to the invention;
FIG. 2 is a schematic view showing a structure in which a sleeve portion is coupled to a fixing portion according to the present invention;
FIG. 3 shows an enlarged view at A in FIG. 1;
figure 4 shows a schematic view of the cooperation of the main door lock part with the auxiliary door lock part according to the invention;
FIG. 5 shows a schematic structural diagram of a drive unit and a test unit of the present invention;
in the figure, 1 is a tank body; 2 is a fixed part; 3 is a sleeve portion; 4 is a moving part; 5 is a first open end; 6 is a second open end; 7 is a door lock main part; 8 is a door lock accessory; 9 is a first sealing ring; 10 is a second sealing ring; 11 is a first main body part; 12 is a matching tooth; 13 is a locking groove; 14 is a second body portion; 15 is a convex block; 16 is a first convex ring; 17 is a second convex ring; 18 is a handle; 19 is a first gear; 20 is a second gear; 21 is a third gear; 22 is a first transmission shaft; 23 is a slide rail; 24 is a sliding part; 25 is a first power driving source; 26 is a first pressure sensor; 27 is a first strut; 28 is a first test piece; 29 is a second power driving source; 30 is a second pressure sensor; 31 is a second strut; 32 is a second test piece; 33 is a driving motor; 34 is a second transmission shaft; 35 is a torque and rotation speed sensor; 36 is a mounting seat; 37 is a stop block; a spark plug 38; 39 is a stirring fan; 40 is an air inlet pipeline; 41 is an air outlet pipeline; 42 is an intake valve; 43 is an air outlet valve; 44 is a dynamic pressure sensor; 45 is a viewing port; and 46 is a test workpiece.
Detailed Description
The invention is further illustrated by the following figures and examples.
The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material as shown in figures 1 and 2 comprises a tank body 1 with an adjustable volume, wherein the tank body 1 comprises a fixed part 2, a sleeve part 3 and a moving part 4, the open end of the fixed part 2 is connected with a first open end 5 of the sleeve part 3The moving part 4 is slidably arranged in the sleeve part 3; when the first connecting end of the moving part 4 is connected with the first opening end 5 of the sleeve part 3 in a sealing way, the fixed part 2 is directly communicated with the moving part 4, the volume of the tank body 1 is the minimum, and the volume of the tank body is 0.5m at the moment3(ii) a When the second connecting end of the movable part 4 is connected with the second opening end 6 of the sleeve part 3 in a sealing way, the fixed part 2 is communicated with the movable part 4 through the sleeve part 3, the volume of the tank body is the maximum, and the volume of the tank body is 1m at the moment3. By adopting the design, the volume of the tank body can be changed to meet the test requirements of different standards, and the equipment and labor cost of enterprises are saved.
The door lock further comprises a door lock assembly and a sealing piece; the first connecting end of the moving part 4 is connected with the first opening end 5 of the sleeve part 3 in a sealing mode through a door lock assembly and a sealing piece, and the second connecting end of the moving part 4 is connected with the second opening end 6 of the sleeve part 3 in a sealing mode through the door lock assembly and the sealing piece. By this arrangement, the sealing performance between the moving portion 4 and the first open end 5 of the sleeve portion 3 and between the moving portion 4 and the second open end 6 of the sleeve portion 3 is improved, and the accuracy and safety of the test are ensured.
The door lock assembly comprises a door lock main part 7 and a door lock auxiliary part 8, and the sealing parts comprise a first sealing ring 9 and a second sealing ring 10; a door lock main part 7 is rotatably installed at the first opening end 5 and the second opening end 6 of the sleeve part 3, a door lock auxiliary part 8 is installed at the first connecting end and the second connecting end of the moving part 4, a first sealing ring 9 is installed on the opening end of the fixing part 2 or the door lock auxiliary part 8 at the first connecting end of the moving part 4, and a second sealing ring 10 is installed at the second opening end 6 of the sleeve part 3 or the second connecting end of the moving part 4; when the door lock auxiliary part 8 positioned at the first connecting end of the moving part 4 is embedded into the door lock main part 7 at the first opening end 5 of the sleeve part 3, the outer wall of the first connecting end of the moving part 4 is abutted with the outer wall of the opening end of the fixing part 2, and the first sealing ring 9 seals a gap between the first connecting end and the fixing part 2, so that sealing connection is realized; when the door lock auxiliary member 8 at the second connecting end of the moving part 4 is inserted into the door lock main member 7 at the second opening end 6 of the sleeve part 3, the second seal ring 10 seals a gap between the second connecting end of the moving part 4 and the second opening end 6 of the sleeve part 3, thereby achieving a sealed connection.
As shown in fig. 3, the door lock main member 7 includes a first main body portion 11, a stopper 37 and a mating tooth 12, the first main body portion 11 is rotatably mounted at the first opening end 5 and the second opening end 6 of the sleeve portion 3, the mating tooth 12 is disposed at the outer end of the first main body portion 11, a locking groove 13 is formed in the inner circumference of the first main body portion 11, and the stopper 37 is uniformly distributed at the outer end of the locking groove 13; the door lock auxiliary member 8 comprises a second main body part 14 and a protruding block 15, the second main body part 14 is fixedly mounted on the first connecting end and the second connecting end of the moving part 4, the protruding blocks 15 are uniformly distributed on the periphery of the second main body part 14, and the protruding blocks 15 correspond to the locking grooves 13. To simplify the structure of the door-lock main part 7, the engaging teeth 12 occupy only 1/3 or 1/4 of the outer circumference of the first body part 11. The door lock main part 7 and the door lock auxiliary part 8 are reasonable in design and simple in structure, the stop dog 37 of the door lock main part 7 can clamp the convex block 15 of the door lock auxiliary part 8 into the locking groove 13, so that the door lock main part 7 and the door lock auxiliary part 8 are connected into a whole, the moving part 4 is prevented from being separated from the sleeve part 3 due to the pressure action of gas in the testing process, and the safety of the device is improved.
The door lock further comprises a door lock driving assembly, wherein the first opening end 5 and the second opening end 6 of the sleeve part 3 are both provided with the door lock driving assembly; the door lock driving assembly comprises a hand crank 18, a first gear 19, a second gear 20, a third gear 21 and a first transmission shaft 22; the handle 18 is connected with a first gear 19, the first gear 19 is meshed with a second gear 20, the second gear 20 drives a third gear 21 to rotate through a first transmission shaft 22, and the third gear 21 is meshed with the matching teeth 12 to drive the first main body part 11 to rotate. Through the arrangement, the door lock main part 7 can be driven to rotate by rotating the hand crank 18, and the door lock main part is reasonable in design and convenient to operate. The first gear 19 and the second gear 20 are both conical teeth.
Further comprises a first convex ring 16 and a second convex ring 17; a first convex ring 16 is mounted on the inner periphery of the second opening end 6 of the sleeve part 3, the door lock main part 7 is rotatably mounted on the first convex ring 16, a second convex ring 17 is fixedly mounted on the outer periphery of the second connecting end of the moving part 4, the door lock auxiliary part 8 is mounted on the second convex ring 17, and the second seal ring 10 is mounted on the first convex ring 16 or the second convex ring 17; when the door lock auxiliary 8 at the second connection end of the moving part 4 is fitted into the door lock main 7 at the second opening end 6 of the sleeve part 3, the first projecting ring 16 abuts against the second projecting ring 17 to press the second seal ring 10, thereby improving the sealing performance. The first and second collars 16, 17 are each annular. Since the outer diameter of the moving part 4 is smaller than the inner diameter of the sleeve part 3, the second collar 17 is fixedly attached to the outer periphery of the second connecting end of the moving part 4, the first collar 16 is fixedly attached to the inner periphery of the second opening end 6 of the sleeve part 3, and when the first collar 16 and the second collar abut against each other, the second seal ring 10 is pressed so that the second connecting end of the moving part 4 and the second opening end 6 of the sleeve part 3 are sealingly connected.
As shown in fig. 1-3, the moving portion 4 approaches the first opening end 5 of the sleeve portion 3, the handle 18 located at the first opening end 5 is rotated to drive the first main body portion 11 to rotate, so that the protruding block 15 at the periphery of the second main body portion 14 enters the locking groove 13 through the gap between the stoppers 37, the handle 18 is further rotated, the stoppers 37 clamp the protruding block 15 in the locking groove 13, so that the outer end surface of the door lock auxiliary member 8 abuts against the outer wall of the opening end of the fixing portion 2, and the first sealing ring 9 is pressed to realize the sealing connection between the first opening end 5 of the moving portion 4 and the first opening end 5 of the sleeve portion 3, and at this time, the volume of the can body 1 is minimum.
The moving part 4 approaches the second opening end 6 of the sleeve part 3, the handle 18 positioned at the second opening end 6 is rotated to drive the first main body part 11 to rotate, so that the raised blocks 15 at the periphery of the second main body part 14 enter the locking grooves 13 through gaps between the stop blocks 37, the handle 18 is continuously rotated, the stop blocks 37 clamp the raised blocks 15 in the locking grooves 13, so that the first raised ring 16 is abutted against the second raised ring 17, and the second sealing ring 10 is extruded to realize the sealing connection between the second opening end 6 of the moving part 4 and the second opening end 6 of the sleeve part 3, and at the moment, the volume of the can body 1 is maximum.
And the device also comprises corresponding slide rails 23 and sliding pieces 24, wherein the slide rails 23 are arranged on the inner wall of the sleeve part 3 or the outer wall of the moving part 4, and the sliding pieces 24 are arranged on the outer wall of the moving part 4 or the inner wall of the sleeve part 3. With this arrangement, the moving portion 4 and the sleeve portion 3 are slidably connected. The slide 24 is a bearing slide. A cylinder or a motor is used to push the moving portion 4 to reciprocate in the sleeve portion 3.
The testing device is characterized by further comprising a driving unit and a testing unit, wherein the action ends of the driving unit and the testing unit penetrate through the outer wall of the fixing part 2 and then are located in the inner cavity of the fixing part 2, and the action ends of the testing unit are located above and on the opposite side of the action end of the driving unit respectively.
The test unit comprises a first test mechanism and a second test mechanism; the first testing mechanism comprises a first power driving source 25, a first pressure sensor 26, a first supporting rod 27 and a first test piece 28, wherein the first pressure sensor 26 is mounted on a piston rod of the first power driving source 25, the piston rod of the first power driving source 25 is connected with one end of the first supporting rod 27, the other end of the first supporting rod 27 penetrates through the upper side wall of the fixing part 2 and then is located in an inner cavity of the fixing part 2, the first test piece 28 is fixedly mounted on the other end face of the first supporting rod 27, and the first test piece 28 is located above the action end of the driving unit; the second testing mechanism comprises a second power driving source 29, a second pressure sensor 30, a second supporting rod 31 and a second test piece 32; the second pressure sensor 30 is installed on a piston rod of the second power driving source 29, the piston rod of the second power driving source 29 is connected with one end of the second supporting rod 31, the other end of the second supporting rod 31 penetrates through the side wall of the fixing portion 2 and then is located in the inner cavity of the fixing portion 2, the second test piece 32 is fixed on the other end face of the second supporting rod 31, and the second test piece 32 is arranged opposite to the action end of the driving unit. The power driving source is a cylinder or a hydraulic cylinder. The output pressure of the power driving source is continuously adjustable within the range of 0-1000N. The first and second struts 27 and 31, respectively, pass through the fixed part 2 by means of usual sealing and leak-proof means. The pressure sensor is used to detect the pressing force between the test piece and the test workpiece 46, and transmit data to a computer (in which test software is installed).
The driving unit comprises a driving motor 33, a second transmission shaft 34, a torque and rotating speed sensor 35 and a mounting seat 36 for fixing a test workpiece 46; the output shaft of the driving motor 33 is connected with one end of a second transmission shaft 34, the other end of the second transmission shaft 34 penetrates through the side wall of the fixing portion 2 and then is located in the inner cavity of the fixing portion 2, the torque and rotation speed sensor 35 is mounted on the output shaft of the driving motor 33, the mounting seat 36 is fixedly mounted on the other end face of the second transmission shaft 34, the test workpiece 46 is fixed on the mounting seat 36, the first test piece 28 is located above the test workpiece 46, and the second test piece 32 and the test workpiece 46 are arranged oppositely. The secondary drive shaft 34 passes through the fixed portion by means of a conventional seal and leak-proof device. The torque and rotation speed sensor 35 is used for detecting the rotation speed of the output shaft of the driving motor 33 and transmitting data to the computer.
The driving motor 33 drives the test workpiece 46 on the mounting seat 36 to rotate, the first test mechanism performs friction test on the outer circumference of the test workpiece 46, and the second test mechanism performs friction or impact on the end face of the test workpiece 46. The first testing mechanism and the second testing mechanism are mutually independent and do not interfere with each other. Through setting up first accredited testing organization and second accredited testing organization, can satisfy the test demand of different standards, for enterprise's saving equipment, cost of labor.
The fixing part 2 is further provided with an ignition device, a stirring fan 39, an air inlet pipeline 40 for introducing combustible gas and an air outlet pipeline 41 for discharging the combustible gas, the air inlet pipeline 40 is provided with an air inlet valve 42, the air outlet pipeline 41 is provided with an air outlet valve 43, the fixing part 2 is further provided with a tank door capable of being opened, the tank door is provided with an induction switch, the induction switch is interlocked with the ignition device and the air inlet valve 42, and the ignition device cannot be started under the condition that the air inlet valve 42 and the tank door are not closed. The lower end surface of the fixing part 2 is provided with 500mm explosion venting ports which are communicated with the releasing space. The explosion venting port is used for venting pressure generated when gas in the tank body explodes. The fixed part 2 is reserved with an observation port 45 for observing the condition during friction and whether explosion occurs during friction impact. The ignition device is composed of a spark plug 38, a high-voltage wire and a high-voltage generator, the stirring fan 39 is an explosion-proof fan, and the ignition device and the stirring fan 39 are common instruments in the field.
A data acquisition port is reserved on the tank body 1, so that subsequent data acquisition is facilitated. The tank body 1 is provided with an oxygen and hydrogen analyzer to ensure the precision of ternary gas distribution. The oxygen and hydrogen analyzer is provided with an oxygen concentration sensor and a hydrogen concentration sensor. The tank body 1 is also provided with a dynamic pressure sensor 44 for detecting the pressure in the tank body, and the oxygen concentration sensor, the hydrogen concentration sensor and the dynamic pressure sensor 44 transmit data to a computer.
The invention not only can simulate combustible gas environments with different volumes, but also integrates the rotation friction test and the impact test, thereby saving equipment and labor cost for enterprises, and effectively improving the test efficiency.
The design of the invention is characterized in that: in the prior art, aiming at different test standards, test tank bodies with different volumes are required, and the tank body with the adjustable volume is designed by the device so as to meet the test requirements of different standards; the existing testing device can only meet one of the outer circumference test or the end face test of the workpiece, when the outer circumference and the end face of the tested workpiece need to be tested, different testing devices need to be replaced, and the device designs two testing mechanisms in the same testing device, thereby simplifying the testing process. The device can meet different test requirements, saves cost for enterprises, and improves test efficiency.
The above-mentioned embodiments are preferred embodiments of the present invention, and the present invention is not limited thereto, and any other modifications or equivalent substitutions that do not depart from the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. A rotary friction spark test device for detecting the explosion-proof performance of a sparkless material is characterized in that: the movable type oil filter comprises a tank body, wherein the tank body comprises a fixed part, a sleeve part and a movable part, the open end of the fixed part is connected with the first open end of the sleeve part, and the movable part is arranged in the sleeve part in a sliding manner; when the first connecting end of the moving part is in sealing connection with the first opening end of the sleeve part, the volume of the tank body is minimum, and when the second connecting end of the moving part is in sealing connection with the second opening end of the sleeve part, the volume of the tank body is maximum;
the door lock further comprises a door lock assembly and a sealing piece; the first connecting end of the moving part is in sealing connection with the first opening end of the sleeve part through a door lock assembly and a sealing piece, and the second connecting end of the moving part is in sealing connection with the second opening end of the sleeve part through the door lock assembly and the sealing piece;
the door lock assembly comprises a door lock main part and a door lock auxiliary part, and the sealing part comprises a first sealing ring and a second sealing ring; the first opening end and the second opening end of the sleeve part are both rotatably provided with a door lock main part, the first connecting end and the second connecting end of the moving part are both provided with a door lock auxiliary part, the opening end of the fixing part or the door lock auxiliary part of the first connecting end of the moving part is provided with a first sealing ring, and the second opening end of the sleeve part or the second connecting end of the moving part is provided with a second sealing ring; when the door lock auxiliary part positioned at the first connecting end of the moving part is embedded into the door lock main part at the first opening end of the sleeve part and the first sealing ring seals a gap between the door lock auxiliary part and the door lock main part, the first connecting end of the moving part is in sealing connection with the first opening end of the sleeve part; when the door lock auxiliary part positioned at the second connecting end of the moving part is embedded into the door lock main part at the second opening end of the sleeve part and the second sealing ring seals a gap between the door lock auxiliary part and the door lock main part, the second connecting end of the moving part is in sealing connection with the second opening end of the sleeve part;
the door lock main part comprises a first main body part, a stop block and matching teeth, the first main body part is rotatably mounted at the first opening end and the second opening end of the sleeve part, the matching teeth are arranged at the outer end of the first main body part, a locking groove is formed in the inner periphery of the first main body part, and the stop block is uniformly distributed at the outer end of the locking groove; the door lock accessory comprises a second main body part and protruding blocks, the second main body part is fixedly mounted on the first connecting end and the second connecting end of the moving part, the protruding blocks are uniformly distributed on the periphery of the second main body part, and the protruding blocks correspond to the locking grooves.
2. The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material according to claim 1, wherein: the device also comprises a first convex ring and a second convex ring; the inner periphery of the second opening end of the sleeve part is provided with a first convex ring, the door lock main part is rotatably arranged on the first convex ring, the outer periphery of the second connecting end of the moving part is fixedly provided with a second convex ring, the door lock auxiliary part is fixedly arranged on the second convex ring, and the second sealing ring is arranged on the first convex ring or the second convex ring; when the second connecting end of the moving portion is sealingly connected with the second open end of the sleeve portion, the first and second collars abut.
3. The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material according to claim 2, wherein: the door lock driving assembly is mounted at the first opening end and the second opening end of the sleeve part; the door lock driving assembly comprises a hand crank, a first gear, a second gear, a third gear and a first transmission shaft; the handle is connected with the first gear, the first gear is meshed with the second gear, the second gear drives the third gear to rotate through the first transmission shaft, and the third gear drives the door lock main part to rotate.
4. The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material according to claim 1, wherein: the sliding device further comprises corresponding sliding rails and sliding pieces, the sliding rails are mounted on the inner wall of the sleeve portion or the outer wall of the moving portion, and the sliding pieces are mounted on the outer wall of the moving portion or the inner wall of the sleeve portion.
5. The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material according to claim 1, wherein: the testing device is characterized by further comprising a driving unit and a testing unit, wherein the action ends of the driving unit and the testing unit penetrate through the outer wall of the fixing portion and then are located in the inner cavity of the fixing portion, and the action ends of the testing unit are located above and on the opposite side of the action end of the driving unit respectively.
6. The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material according to claim 5, wherein: the test unit comprises a first test mechanism and a second test mechanism; the first testing mechanism comprises a first power driving source, a first pressure sensor, a first supporting rod and a first testing piece, the first pressure sensor is mounted on a piston rod of the first power driving source, the piston rod of the first power driving source is connected with one end of the first supporting rod, the other end of the first supporting rod penetrates through the upper side wall of the fixing portion and then is located in an inner cavity of the fixing portion, the first testing piece is fixedly mounted on the other end face of the first supporting rod, and the first testing piece is located above the action end of the driving unit; the second testing mechanism comprises a second power driving source, a second pressure sensor, a second supporting rod and a second testing piece; the second pressure sensor is installed on a piston rod of the second power driving source, the piston rod of the second power driving source is connected with one end of the second supporting rod, the other end of the second supporting rod penetrates through an inner cavity of the fixing portion and then is located in the inner cavity of the fixing portion, the second test piece is fixed to the other end face of the second supporting rod, and the second test piece is arranged opposite to the action end of the driving unit.
7. The rotary friction spark test device for detecting the explosion-proof performance of the sparkless material according to claim 5, wherein: the driving unit comprises a driving motor, a second transmission shaft, a torque and rotating speed sensor and a mounting seat for fixing a test workpiece; the output shaft of the driving motor is connected with one end of the second transmission shaft, the other end of the second transmission shaft penetrates through the side wall of the fixing portion and then is located in the inner cavity of the fixing portion, the torque and rotation speed sensor is mounted on the output shaft of the driving motor, the mounting seat is fixedly mounted on the other end face of the second transmission shaft, and the action ends of the driving unit are located above and on the opposite side of the mounting seat respectively.
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