CN112305147A - Fireproof cable combustion test device - Google Patents
Fireproof cable combustion test device Download PDFInfo
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- CN112305147A CN112305147A CN202011377662.2A CN202011377662A CN112305147A CN 112305147 A CN112305147 A CN 112305147A CN 202011377662 A CN202011377662 A CN 202011377662A CN 112305147 A CN112305147 A CN 112305147A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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Abstract
The invention relates to the technical field of cable test equipment, in particular to a fireproof cable combustion test device which comprises a test chamber, a test box and a controller, wherein the test box is arranged in the test chamber, a cable fixing mechanism, a combustion mechanism and a water spraying mechanism are arranged in the test box, and the cable fixing mechanism comprises a fixing frame, a connecting plate and a clamping plate and is used for clamping and electrifying a cable; the base is provided with an impact mechanism, and the impact mechanism comprises a supporting plate, an elastic telescopic rod, an impact carbon block and an electromagnet and is used for providing impact force for the cable; the combustion mechanism and the water spraying mechanism are arranged in the test box, and the combustion mechanism is used for combusting cables; the water spraying mechanism is used for spraying the cable; the controller is respectively electrically connected with the combustion mechanism and the water spraying mechanism so as to control the start and stop of the combustion mechanism and the water spraying mechanism. The invention can facilitate the installation and the disassembly of the cable combustion test and improve the test efficiency.
Description
Technical Field
The invention relates to the technical field of cable test equipment, in particular to a fireproof cable combustion test device.
Background
Fire-resistant cable means a cable that can be kept in operation safely for a certain period of time in the event of a flame burn. Fire-resistant cables are widely used in places related to fire safety and fire life saving, such as high-rise buildings, underground railways, underground streets, large power stations, and important industrial and mining enterprises, for example, power supply lines and control lines of emergency facilities such as fire-fighting equipment and emergency guide lamps.
Consequently need carry out burning test to the cable, when the cable carries out burning test, pass through cable braced system with the cable and support to pass through flame burning certain time with wire and cable and in order to detect its fire resistive feature, but at present at every experimental back that finishes, all will demolish and install the cable of waiting to test to the cable after finishing the experiment, waste time and energy, influence test efficiency. Because the cable burning can produce harmful gas, the tester is long-time in the laboratory, can influence tester's health.
Disclosure of Invention
In order to solve the problems, the invention provides a fireproof cable combustion test device which can be convenient for the installation and the disassembly of a cable combustion test and improve the test efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that:
a fire-proof cable combustion test device comprises a test chamber, a test chamber and a controller, wherein the test chamber is arranged in the test chamber, a cable fixing mechanism, a combustion mechanism and a water spraying mechanism are arranged in the test chamber, the cable fixing mechanism comprises a fixing frame, a connecting plate and a clamping plate, the fixing frame comprises a base and a fixing plate, the base is arranged in the test chamber, one end of the fixing plate is fixedly connected with the base, two sides of the other end are respectively fixedly connected with the connecting plate,
one side of the connecting plate is provided with a power supply connector, and the power supply connector is connected to a cable test system; the clamping plate is provided with a power supply interface which is in butt fit with the power supply connector, and the clamping plate is fixedly connected with the connecting plate through a clamping device so that the power supply connector is embedded into the power supply interface, and the power supply connector and the power supply interface are in butt joint with each other;
the clamping plate is provided with a clamping opening in a concave manner on one side opposite to the power supply connector, a conductive core is arranged in the clamping opening and electrically connected with the power supply interface, one end of the conductive core is fixedly connected with the clamping plate, a winding rod is fixedly arranged at the other end of the conductive core, the winding rod is provided with a clamping cover, the clamping cover is sleeved on the winding rod in a threaded manner, and after a cable is wound on the winding rod, the cable is clamped between the clamping cover and the conductive core so that a cable testing system can supply power to the cable;
the clamping plate is provided with a clamping ring piece, the clamping ring piece is connected with the clamping plate through a screw, and the clamping ring piece is used for clamping two ends of a cable on the clamping plate;
the base is provided with an impact mechanism, the impact mechanism comprises a supporting plate, an elastic telescopic rod, an impact carbon block and an electromagnet, the supporting plate is fixedly connected with the base, the elastic telescopic rod is positioned between the supporting plate and the fixing plate, two ends of the elastic telescopic rod are respectively and fixedly connected with the impact carbon block and the supporting plate, one end of the electromagnet is fixedly connected with the supporting plate, the other end of the electromagnet faces the impact carbon block, the impact carbon block is provided with an iron block, when the electromagnet is powered on, the impact carbon block moves in the direction away from the fixing plate, and when the electromagnet is powered off, under the action of the elastic force of the elastic telescopic rod, the impact carbon block collides with the fixing plate;
the combustion mechanism and the water spraying mechanism are arranged in the test box, and the combustion mechanism is used for combusting cables; the water spraying mechanism is used for spraying the cable;
the controller is respectively electrically connected with the combustion mechanism and the water spraying mechanism so as to control the start and stop of the combustion mechanism and the water spraying mechanism.
Furthermore, the top of the test box is provided with an opening, the opening is provided with a switch cover, the switch cover comprises two cover bodies which are oppositely arranged, the two cover bodies are connected with the test box in a sliding way, two opposite side walls of the test box are provided with two sliding groove plates, the two sliding groove plates on each side of the test box are oppositely arranged and are in sliding connection with the test box, the sliding direction of the sliding groove plate is the same as that of the cover body, a telescopic bracket is arranged between the two sliding groove plates on each side, the telescopic bracket comprises two rod bodies which are mutually rotatably connected, one end of each rod body which is the same as the other end of each rod body is respectively rotatably connected with the two cover bodies through a driving part, and the other end of each rod body is embedded into the corresponding sliding groove plate and is in sliding connection with the sliding groove plate, so that the two cover bodies can simultaneously slide along opposite directions;
the outer wall of the test box is provided with an opening and closing mechanism, the opening and closing mechanism comprises an opening and closing motor and a driving rod, the opening and closing motor is a double-shaft motor, and the opening and closing motor is fixedly connected with the test box; the two driving rods are positioned on two sides of the opening and closing motor and arranged along the sliding direction of the cover body; the driving rod is rotatably connected with the side wall of the test box, one end of the driving rod penetrates through one driving piece in a threaded mode, and the other end of the driving rod is in transmission connection with the opening and closing motor through a bevel gear set; the opening and closing motor drives the driving rod to rotate, the driving piece slides along the driving rod, so that the corresponding cover body slides, and meanwhile, under the cooperation of the telescopic support, the other cover body slides along the opposite direction.
Furthermore, two sliding plates are arranged on two sides of the base, one end of each sliding plate is connected with the inner wall of the test box in a sliding mode, the other end of each sliding plate is fixedly connected with the base, each sliding plate is provided with a traction rod, one end of each traction rod is connected with the corresponding sliding plate in a rotating mode, the other end of each traction rod is connected with the corresponding cover body in a sliding mode, and the traction rods on the same side are connected with different cover bodies, so that when the cover bodies are opened or closed, the traction rods control the lifting of the base;
the laboratory is provided with a conveying mechanism, the conveying mechanism comprises a cable delivery inspection device and a cable delivery-out device, the cable delivery inspection device and the cable removal-out mechanism are both positioned above the test box, the cable delivery inspection device comprises a delivery inspection frame, a push rod and a first electric telescopic rod, the delivery inspection frame is fixedly arranged in the laboratory, delivery inspection grooves are respectively arranged on two sides of the delivery inspection frame, one end of each delivery inspection groove is provided with a delivery inspection port penetrating through the delivery inspection frame, and the other end of each delivery inspection groove is provided with a release inspection port; the two ends of the push rod are connected with the inspection frame in a sliding manner, one end of the first electric telescopic rod is fixedly connected with the inspection frame, and the other end of the first electric telescopic rod is fixedly connected with the push rod; after the two clamping plates are connected with a cable, the clamping plates are embedded into the inspection delivery groove through an inspection opening and are in sliding connection with the inspection delivery groove, the push rod is abutted against the clamping plates in the inspection delivery groove under the thrust of the first electric telescopic rod, so that when the base is lifted to the opening of the test box, the clamping plates in the inspection delivery groove are pushed onto the connecting plate through the inspection delivery opening, and the power supply connector is abutted against the power supply interface;
the cable sending device comprises a shifting-out frame, a transverse moving rod, a pneumatic sucker and a second electric telescopic rod, the shifting-out frame is fixedly arranged in the laboratory, one end of the shifting-out frame faces the inspection port, and the shifting-out frame is positioned above the inspection frame; the two ends of the transverse moving rod are respectively connected with the moving-out frame in a sliding mode, the pneumatic sucker is fixedly connected with the transverse moving rod through a pneumatic telescopic rod, one end of the second electric telescopic rod is fixedly connected with the transverse moving rod, and the other end of the second electric telescopic rod is fixedly connected with the moving-out frame; after the cable test is finished, when the base is lifted to the opening of the test box, the transverse moving rod is moved to the position above the connecting plate under the pushing of the second electric telescopic rod, meanwhile, the pneumatic telescopic rod is lowered, and the pneumatic sucker can suck the clamping plate on the connecting plate, so that the tested cable can be moved out of the inspection frame.
Further, the connecting plate is provided with a sliding part, and the clamping plate is provided with a sliding groove in sliding fit with the sliding part.
Further, the power supply connector is arranged in the connecting plate in a penetrating mode in a sliding mode, one end of the power supply connector is connected with the connecting plate through the abutting spring, and the other end of the power supply connector is of an arc structure.
Furthermore, the cable sending-out device is also provided with a collecting box, the collecting box is positioned below the shifting-out frame, and the collecting box is fixedly connected with the laboratory.
Furthermore, a trigger plate is arranged at one end, far away from the fixed plate, of the connecting plate, a first trigger button is arranged on the trigger plate, and the first trigger button is abutted against the inspection frame and then triggered; the controller is respectively electrically connected with the first trigger button, the opening and closing motor, the first electric telescopic rod and the second electric telescopic rod.
Furthermore, the clamping device comprises two clamping discs, two clamping shafts and a third electric telescopic rod, the two clamping discs are respectively positioned on two sides of the fixed plate, the clamping discs are rotatably connected with the fixed plate, and the clamping shafts are fixedly arranged at the positions far away from the eccentricity of the clamping discs; the third electric telescopic handle set firmly in on the fixed plate, just third electric telescopic handle one end is equipped with the rack, the centre gripping disc be equipped with rack toothing's fluted disc, the centre gripping disc passes through the drive of third electric telescopic handle, the centre gripping axle can climb over the fixed plate is kept away from the one end of base, so that the centre gripping axle is right the grip block carries out the butt and fixes or releases.
Furthermore, a second trigger button is fixedly arranged on one surface, facing the clamping plate, of the fixing plate, and the second trigger button is electrically connected with the controller so as to judge whether the power supply connector and the power supply interface are mutually abutted or not after the clamping plate in the inspection slot is pushed onto the connecting plate.
Furthermore, the laboratory is provided with a gas collecting mechanism and a gas supply mechanism,
the gas collecting mechanism comprises a gas collecting pipe, a gas collecting box and a waste gas treatment box, one end of the gas collecting pipe is in conduction connection with the test box, the other end of the gas collecting pipe is in conduction connection with the gas collecting box and the waste gas treatment box in sequence, one end of the gas collecting pipe, which is close to the test box, is provided with a first switch valve, gas inlet ends of the gas collecting box and the waste gas treatment box are provided with a second switch valve and a third switch valve, and the first switch valve, the second switch valve and the third switch valve are all electrically connected with the controller;
the air supply mechanism comprises an air heater and an oxygen supply machine, the air heater and the oxygen supply machine are respectively in conduction connection with the laboratory through an air supply pipe, and the air heater and the oxygen supply machine are electrically connected with the controller.
The invention has the beneficial effects that:
1. the clamping plate can be fixed on the connecting piece through the clamping device, so that the power supply connector is embedded into the power supply interface, and the power supply connector is abutted against the power supply interface; under the action of the clamping cover, the cable wound on the winding rod can be clamped on the conductive core, so that the cable testing system sequentially passes through the power supply connector, the power supply interface and the conductive core to provide test current for the cable on the clamping piece; through fixing many cables on the holder in advance, can install the holder that is fixed with the cable on the connecting piece fast after experimental finishing at every turn, improve the experimental efficiency of cable effectively, can reduce the time that the testing personnel are in the laboratory in addition, reduce harmful gas's suction, ensure testing personnel's health.
2. When the opening and closing motor is started, the driving rod rotates along with the opening and closing motor under the action of the bevel gear set, so that the driving piece slides along the driving rod to enable the corresponding cover bodies to slide, and meanwhile, under the action of the telescopic support, the two cover bodies can slide along opposite directions at the same time, and synchronous opening and closing of the opening and closing cover are realized; under the effect of traction lever, when the lid is opened, lid drive traction lever to make the traction lever can pull the base, make the base can slide and rise to the opening part of test box with the test box, thereby make the fixed plate can expose in the test box, the change work of the cable of being convenient for.
3. After the fixed plate rises to the settlement position, under first electric telescopic handle's thrust, the grip block butt of propelling movement pole and censorship inslot for the grip block passes through censorship mouth propelling movement to the connecting plate on, makes the mutual butt of power supply connector and power supply interface simultaneously, so that the cable can obtain test current, after the grip block targets in place, under clamping device's effect, can fix grip block 32 on the connecting plate, in order to carry out the test work of epilogue. After the cable test finishes, the base rises to the opening of proof box, under second electric telescopic handle's promotion, the sideslip pole removes to the top of connecting plate, descends at pneumatic telescopic handle simultaneously, and pneumatic suction cup can carry out the actuation to the grip block on the connecting plate, has realized that the cable after will testing can shift out outside the censorship frame. The automatic cable inspection and automatic moving-out can be realized under the matching of the switch cover, the cable inspection device and the cable sending-out device, and the test personnel are not required to enter a test room, so that the safety of the test personnel is effectively guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a fire-proof cable burning test device according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural diagram of a test chamber of a fireproof cable combustion test device according to a preferred embodiment of the invention.
Fig. 3 is a schematic structural diagram of an impact mechanism of a fireproof cable combustion test device according to a preferred embodiment of the invention.
Fig. 4 is a schematic view of a telescopic bracket structure of a fireproof cable combustion test device according to a preferred embodiment of the present invention.
Fig. 5 is a schematic structural view of an opening and closing motor of the fireproof cable combustion testing device according to a preferred embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a conveying mechanism of a fireproof cable combustion test device according to a preferred embodiment of the invention.
Fig. 7 is a sectional view of a conveying mechanism of a fireproof cable burning test device according to a preferred embodiment of the present invention.
Fig. 8 is a schematic structural view of a clamping device of a fireproof cable burning test device according to a preferred embodiment of the invention.
Fig. 9 is a schematic view of a clamping member of a fire-proof cable burning test device according to a preferred embodiment of the invention.
In the figure, 1-laboratory, 2-test box, 3-fixed mount, 301-base, 302-fixed plate, 303-sliding plate, 304-traction rod, 31-connecting plate, 311-power supply connector, 312-abutting spring, 32-clamping plate, 321-power supply interface, 322-clamping opening, 323-conductive core, 324-winding rod, 325-clamping cover, 326-clamping ring sheet, 33-sliding piece, 331-sliding chute, 34-triggering plate, 341-first triggering button, 4-impact mechanism, 41-supporting plate, 42-elastic telescopic rod, 43-impact carbon block, 44-electromagnet, 45-iron block, 5-inspection frame, 501-inspection groove, 502-inspection opening, 503-inspection opening, 51-pushing rod, 52-first electric telescopic rod, 6-removing frame, 61-transverse rod, 62-pneumatic sucker, 621-pneumatic telescopic rod, 63-second electric telescopic rod, 64-collecting box, 7-clamping disc, 701-fluted disc, 71-clamping shaft, 72-third electric telescopic rod, 721-toothed bar, 73-second trigger button, 8-gas collecting pipe, 801-first switch valve, 802-second switch valve, 803-third switch valve, 81-gas collecting box, 82-waste gas treatment box, 91-hot air blower, 92-oxygen supply machine and 93-air supply pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 9, a fire-proof cable burning test apparatus according to a preferred embodiment of the present invention includes a test chamber 1, a test box 2 and a controller.
In test chamber 1 was located to proof box 2, be equipped with cable fixed establishment, burning mechanism and water spray mechanism in the proof box 2, cable fixed establishment includes mount 3, connecting plate 31 and grip block 32, and mount 3 includes base 301 and fixed plate 302, and base 301 sets up in proof box 2, the one end and the base 301 fixed connection of fixed plate 302, the both sides of the other end respectively with connecting plate 31 fixed connection.
As shown in fig. 9, a power supply connector 311 is provided on one surface of the connection board 31, and the power supply connector 311 is connected to a cable test system. The cable test system of the embodiment is a cable test power supply device according with the national standard. The clamping plate 32 is provided with a power supply interface 321 in abutting fit with the power supply connector 311, and the clamping plate 32 is fixedly connected with the connecting plate 31 through a clamping device, so that the power supply connector 311 is embedded in the power supply interface 321, and the power supply connector 311 and the power supply interface 321 are in abutting fit with each other.
As shown in fig. 8, the clamping device of the present embodiment includes a clamping disk 7, a clamping shaft 71 and a third electric telescopic rod 72.
Two clamping disks 7 are arranged, the two clamping disks 7 are respectively located on two sides of the fixing plate 302, the clamping disks 7 are rotatably connected with the fixing plate 302, and the clamping shaft 71 is fixedly arranged at the eccentric distance of the clamping disks 7. The third electric telescopic rod 72 is fixedly arranged on the fixed plate 302, one end of the third electric telescopic rod 72 is provided with a rack 721, the clamping disc 7 is provided with a fluted disc 701 meshed with the rack 721, the clamping disc 7 is driven by the third electric telescopic rod 72, and the clamping shaft 71 can cross one end of the fixed plate 302 far away from the base 301, so that the clamping shaft 71 can be abutted and fixed or released to the clamping plate 32. The rack 721 is driven by the extension and contraction of the third electric telescopic rod 72 to rotate the fluted disc 701, and the clamping disc 7 is driven to rotate, so that the clamping shaft 71 abuts and fixes or releases the clamping plate 32, and the clamping plate 32 is fixed on the connecting plate 31.
As shown in fig. 9, a concave clamping opening 322 is formed in a surface of the clamping plate 32 opposite to the power supply connector 311, a conductive core 323 is disposed in the clamping opening 322, the conductive core 323 is electrically connected to the power supply interface 321, one end of the conductive core 323 is fixedly connected to the clamping plate 32, the other end of the conductive core 323 is fixedly provided with a winding rod 324, the winding rod 324 is provided with a clamping cover 325, the clamping cover 325 is threadedly sleeved on the winding rod 324, and after the cable is wound on the winding rod 324, the cable is clamped between the clamping cover 325 and the conductive core 323, so that the cable testing system supplies power to the cable.
The clamping plate 32 is provided with a clamping ring 326, the clamping ring 326 is screwed to the clamping plate 32, and the clamping ring 326 is used to clamp both ends of the cable to the clamping plate 32. The two ends of the cable can be fixed on the clamping plates 32 under the action of the clamping ring sheets 326, and the two ends of the cable are prevented from being separated from the two clamping plates 32 in the test process. The clamping shaft 71 of the embodiment is provided with a notch to prevent the clamping shaft 71 from damaging the cable and affecting the detection result when the clamping shaft 71 clamps the clamping member 32.
A plurality of support rods 35 for supporting cables are arranged between the two connecting plates 31, and the support rods 35 are arranged in parallel and fixedly connected with the fixing plate 301.
In the present embodiment, the clamping plate 32 can be fixed on the connecting member 31 by the clamping device, so that the power supply connector 311 is embedded in the power supply interface 321, and the power supply connector 311 and the power supply interface 321 are abutted against each other. Under the action of the clamping cover 325, the cable wound on the winding rod can be clamped on the conductive core 323, so that the cable testing system sequentially passes through the power supply connector 311, the power supply interface 321 and the conductive core 323 to provide test current for the cable on the clamping piece 32. Through fixing many cables in advance on the holder 32 that corresponds, can install the holder that is fixed with the cable on connecting piece 31 fast after experimental each time finishes, improved the experimental efficiency of cable effectively, can reduce the time that the testing personnel are in laboratory 1 moreover, reduced harmful gas's suction, ensure testing personnel's health.
As shown in fig. 4 and 5, in this embodiment, the top of the test chamber 2 is provided with an opening, the opening is provided with an opening-closing cover 21, the opening-closing cover 21 includes two cover bodies 211, the two cover bodies 211 are disposed opposite to each other, and both the two cover bodies 211 are slidably connected to the test chamber 2.
Two opposite side walls of the test box 2 are provided with two sliding groove plates 22, the two sliding groove plates 22 on each side of the test box 2 are arranged oppositely, the two sliding groove plates 22 are connected with the test box 2 in a sliding mode, the sliding direction of the sliding groove plates 22 is the same as that of the cover body 211, a telescopic support 23 is arranged between the two sliding groove plates 22 on each side, the telescopic support 23 comprises two rod bodies 231 which are mutually rotatably connected, one ends of the two rod bodies 231 which are the same are respectively connected with the two cover bodies 211 in a rotating mode through a driving part 24, the other ends of the two rod bodies are embedded into the corresponding sliding groove plates 22 and are connected with the sliding groove plates 22 in a sliding mode, and the two cover bodies 211 can slide along opposite directions simultaneously;
the outer wall of test box 2 is equipped with the mechanism that opens and shuts, and the mechanism that opens and shuts is including opening and shutting motor 25 and actuating lever 251, and the motor 25 that opens and shuts is the biax motor, and opens and shuts motor 25 and test box 2 fixed connection. Two driving rods 251 are provided, the two driving rods 251 are located at two sides of the opening and closing motor 25, and the driving rods 251 are arranged along the sliding direction of the cover body 211; the driving rod 251 is rotatably connected with the side wall of the test box 2, one end of the driving rod 251 is threaded through a certain driving part 24, and the other end of the driving rod 251 is in transmission connection with the opening and closing motor 25 through the bevel gear set 252; when the opening and closing motor 25 drives the driving rod 251 to rotate, the driving member 24 slides along the driving rod 251 to slide the corresponding cover 211, and simultaneously, the other cover 211 slides in the opposite direction under the cooperation of the telescopic bracket 23.
When the opening and closing motor 25 is started, the driving rod 251 rotates along with the bevel gear set 252, so that the driving member 24 slides along the driving rod 251 to slide the corresponding cover 211, and simultaneously, under the action of the telescopic bracket 23, the two cover 211 can slide in opposite directions, thereby realizing the synchronous opening and closing of the opening and closing cover 21.
As shown in fig. 1 and 2, in this embodiment, two sliding plates 303 are disposed on both sides of the base 301, one end of each sliding plate 303 is slidably connected to the inner wall of the test chamber 2, the other end of each sliding plate 303 is fixedly connected to the base 301, each sliding plate 303 is provided with a pull rod 304, one end of each pull rod 304 is rotatably connected to the corresponding sliding plate 303, the other end of each pull rod 304 is slidably connected to the corresponding cover 211, and the pull rods 304 on the same side are connected to different covers 211, so that when the covers 211 are opened or closed, the pull rods 304.
Under the action of the traction rod 304, when the cover body 211 is opened, the cover body 211 drives the traction rod 304, so that the base 301 can be drawn by the traction rod 304, the base 301 can slide with the test box 2 and ascend to the opening of the test box 2, and the fixing plate 302 can be exposed out of the test box 2, so that the cable replacement work is facilitated.
As shown in fig. 6 and 7, the test chamber 1 is provided with a conveying mechanism including a cable feeding device 101 and a cable feeding device 102, and both the cable feeding device 101 and the cable removing mechanism are located above the test chamber 2.
The cable inspection device 101 includes an inspection rack 5, a push rod 51, and a first electric telescopic rod 52.
The inspection rack 5 is fixedly arranged in the laboratory 1, the inspection slots 501 are arranged on both sides of the inspection rack 5, one end of each inspection slot 501 is provided with an inspection opening 502 penetrating through the inspection rack 5, and the other end of each inspection slot 501 is provided with an inspection opening 503; two ends of the push rod 51 are slidably connected with the inspection frame 5, one end of the first electric telescopic rod 52 is fixedly connected with the inspection frame 5, and the other end of the first electric telescopic rod is fixedly connected with the push rod 51; after the two clamping plates 32 are connected with a cable, the two clamping plates 32 are embedded into the inspection delivery groove 501 through the inspection release opening 503, the clamping plates 32 are connected with the inspection delivery groove 501 in a sliding manner, the push rod 51 is abutted to the clamping plates 32 in the inspection delivery groove 501 under the thrust of the first electric telescopic rod 52, so that when the base 301 is lifted to the opening of the test box 2, the clamping plates 32 in the inspection delivery groove 501 are pushed to the connecting plate 31 through the inspection delivery opening 502, and the power supply connector 311 is abutted to the power supply interface 321;
the cable feeding device 102 includes a moving-out frame 6, a traverse rod 61, a pneumatic suction cup 62, and a second electric telescopic rod 63.
The moving-out frame 6 is fixedly arranged in the test room 1, one end of the moving-out frame 6 faces the inspection opening 502, and the moving-out frame 6 is positioned above the inspection frame 5, so that when the fixing plate 302 extends out of the test box 3, the fixing plate 302 is positioned between the moving-out frame 6 and the inspection frame 5.
Two ends of the transverse moving rod 61 are respectively connected with the moving-out frame 6 in a sliding manner, the pneumatic sucker 62 is fixedly connected with the transverse moving rod 61 through a pneumatic telescopic rod 621, one end of the second electric telescopic rod 63 is fixedly connected with the transverse moving rod 61, and the other end of the second electric telescopic rod is fixedly connected with the moving-out frame 6; after the cable test is finished, and the base 301 is lifted to the opening of the test box 2, under the pushing of the second electric telescopic rod 63, the transverse moving rod 61 is moved to the upper side of the connecting plate 31, and meanwhile, the pneumatic telescopic rod 621 is lowered, and the pneumatic suction cup 62 can suck the clamping plate 32 on the connecting plate 31, so that the tested cable can be moved out of the inspection rack 5.
In the process of taking out the cable from the cable feeding device 102 of this embodiment, the second electric telescopic rod 63 extends, the traverse rod 61 reaches the position right above the clamping plate 32, the pneumatic telescopic rod 621 descends, and the pneumatic suction cup 62 adsorbs the clamping plate 32 on the connecting plate 31; the pneumatic telescopic rod 621 rises, the second electric telescopic rod 63 is shortened, and the tested cable is moved out of the fixing plate 302.
After the fixed plate 301 rises to the set position, under the thrust of the first electric telescopic rod 52, the push rod 51 abuts against the clamping plate 32 in the censorship groove 501, so that the clamping plate 32 is pushed to the connecting plate 31 through the censorship port 502, and meanwhile, the power supply connector 311 abuts against the power supply interface 321, so that the cable can obtain test current, after the clamping plate 32 is in place, under the action of the clamping device, the clamping plate 32 can be fixed on the connecting plate, so as to perform subsequent test work.
After the cable test is finished, the base 301 is lifted to the opening of the test box 2, the transverse moving rod 61 is moved to the upper side of the connecting plate 31 under the pushing of the second electric telescopic rod 63, the pneumatic telescopic rod 621 is lowered, the pneumatic suction cup 62 can suck the clamping plate 32 on the connecting plate 31, and the purpose that the tested cable can be moved out of the inspection frame 5 is achieved.
The automatic cable delivery inspection and automatic cable moving-out can be realized under the matching of the switch cover 21, the cable delivery inspection device 101 and the cable sending-out device 102, and the safety of testers is effectively guaranteed without the need of entering the test room 1.
In this embodiment, as shown in fig. 9, the power supply connector 311 is slidably disposed through the connection plate 31, one end of the power supply connector 311 is connected to the connection plate 31 through the abutting spring 312, and the other end is in an arc structure. The connecting plate 31 is provided with a slider 33, and the holding plate 32 is provided with a slide groove 331 slidably engaged with the slider 33.
Since one end of the power supply connector 311 is of an arc structure, when the abutting member 32 slides on the connecting plate 31, the abutting member 32 can press down the power supply connector 311, so that the power supply connector 311 is aligned with the power supply interface 321, the power supply connector 311 is embedded into the power supply interface 321 under the action of the abutting spring 312, and the power supply connector 311 and the power supply interface 321 are abutted with each other. The sliding member 33 and the slide groove 331 facilitate the alignment of the abutment member 32 with the connecting member 31.
The cable run-out 102 is further provided with a collection box 64, the collection box 64 being located below the removal rack 6, and the collection box 64 being fixedly connected to the test chamber 1. When the tested cable is removed from the fixed plate 302, the tested cable and the clamping member 32 can be placed into the collection box 64 by releasing the pneumatic suction cups 62.
In this embodiment, a trigger plate 34 is disposed at an end of the connecting plate 31 away from the fixing plate 302, a first trigger button 341 is disposed on the trigger plate 34, and the first trigger button 341 is triggered after abutting against the censorship rack 5. The controller is electrically connected to the first trigger button 341, the opening and closing motor 25, the first electric telescopic rod 52 and the second electric telescopic rod 63, respectively. When the first trigger button 341 comes into contact with the inspection rack 5, the base 301 is raised to the set position as a start signal for the subsequent transport mechanism.
As shown in fig. 8, a second trigger button 73 is fixedly disposed on one surface of the fixing plate 302 facing the clamping plate 32, and the second trigger button 73 is electrically connected to the controller so as to determine whether the power supply connector 311 and the power supply interface 321 are abutted with each other after the clamping plate 32 in the inspection slot 501 is pushed onto the connecting plate 31.
The combustion mechanism and the water spraying mechanism are arranged in the test box 2, and the combustion mechanism is used for combusting the cable; the water spraying mechanism is used for spraying the cable.
The controller is respectively electrically connected with the combustion mechanism and the water spraying mechanism to control the start and stop of the combustion mechanism and the water spraying mechanism.
The test box 2 of this embodiment is provided with a water tank for collecting shower water.
The laboratory 1 is provided with a gas collecting mechanism and a gas supply mechanism,
the gas collecting mechanism comprises a gas collecting pipe 8, a gas collecting box 81 and a waste gas treatment box 82, one end of the gas collecting pipe 8 is in conduction connection with the test box 2, the other end of the gas collecting pipe 8 is in conduction connection with the gas collecting box 81 and the waste gas treatment box 82 in sequence, a first switch valve 801 is arranged at one end, close to the test box 2, of the gas collecting pipe 8, a second switch valve 802 and a third switch valve 803 are arranged at gas inlet ends of the gas collecting box 81 and the waste gas treatment box 82, and the first switch valve 801, the second switch valve 802 and the third switch valve 803 are electrically connected with the controller.
The air supply mechanism comprises an air heater 91 and an oxygen supply machine 92, the air heater 91 and the oxygen supply machine 92 are respectively connected with the laboratory 1 through an air supply pipe 93 in a conduction manner, and the air heater 91 and the oxygen supply machine 92 are electrically connected with the controller.
The test process of the fireproof cable combustion test device of the embodiment is as follows:
s1, after the cable is wound around the winding rod 324, the clamping cover 325 is screwed to clamp the cable between the clamping cover 325 and the conductive core 323, so that the two ends of the cable are electrically connected to the conductive core 323 of the corresponding abutting member 32, and the cable is clamped and fixed to the abutting member 32 by the clamping ring 326 and the screw, thereby forming the part to be inspected.
S2, assembling a plurality of parts to be inspected, and embedding the two clamping plates 32 of the parts to be inspected into the inspection feeding groove 501 through the inspection placing opening 503.
S3, controlling the opening and closing motor 25 to rotate forward, and the driving rod 251 rotates along with the driving rod 251, so that the driving member 24 slides along the driving rod 251, the two covers 211 are opened simultaneously under the action of the telescopic bracket 23, and the covers 211 drive the traction rod 304, so that the traction rod 304 can draw the base 301, and the base 301 can slide and ascend with the test box 2.
S4, the first part to be inspected is mounted on the base 301, the clamping plate 32 of the first part to be inspected is fixed on the connecting plate 31 by the clamping device, and the power supply connector 311 is embedded in the power supply interface 321, and the power supply connector 311 abuts against the power supply interface 321.
S5, controlling the opening and closing motor 25 to rotate reversely, and the driving rod 251 rotates therewith, so that the driving member 24 slides along the driving rod 251, the two covers 211 are closed simultaneously under the action of the telescopic bracket 23, and the covers 211 drive the draw bar 304, so that the draw bar 304 can release the base 301, and the base 301 can slide and descend with the test chamber 2.
S6, controlling the combustion mechanism, the impact mechanism 4, the water spraying mechanism and the air supply mechanism to perform a fire resistance test on the cable through the controller; the controller opens the first switch valve 801 and the second switch valve 802 to collect and detect the gas generated by cable combustion. After the first part to be tested is tested, the second switch valve 802 is closed, and the third switch valve 803 is opened, so that the waste gas generated by combustion is collected by the waste gas treatment tank 82.
S7, controlling the opening and closing motor 25 to rotate forward to open the cover 211 and lift the base 301, when the first trigger button 341 abuts against the inspection frame 5, the cover 211 is proved to be lifted in place, the controller obtains a trigger signal of the first trigger button 341, the controller controls the clamping device to release, the controller controls the second electric telescopic rod 63 to extend, the transverse rod 61 reaches the position right above the clamping plate 32, the pneumatic telescopic rod 621 descends, and the pneumatic suction cup 62 adsorbs the clamping plate 32 on the connecting plate 31; the pneumatic telescopic rod 621 rises, the second electric telescopic rod 63 shortens, the tested cable moves out of the fixed plate 302, and the movable suction cup 62 is released, so that the tested cable and the butting piece fall into the collection box 64.
S8, setting time delay through the controller, controlling the first electric telescopic rod 52 to extend through the controller, enabling the push rod 51 to abut against the clamping plate 32 in the inspection slot 501, enabling the clamping plate 32 to be pushed to the connecting plate 31 through the inspection slot 502, and enabling the power supply connector 311 and the power supply interface 321 to abut against each other. The clamping plate 32 on the connecting plate 31 triggers the second trigger button 73, and after the controller obtains a trigger signal, the clamping device is controlled to be locked, and the opening and closing motor 25 is controlled to rotate reversely, so that the base 301 is lowered and the cover 211 is closed, and the cable test is executed again.
Claims (10)
1. The fireproof cable combustion test device is characterized by comprising a test chamber (1), a test box (2) and a controller, wherein the test box (2) is arranged in the test chamber (1), a cable fixing mechanism, a combustion mechanism and a water spraying mechanism are arranged in the test box (2), the cable fixing mechanism comprises a fixing frame (3), a connecting plate (31) and a clamping plate (32), the fixing frame (3) comprises a base (301) and a fixing plate (302), the base (301) is arranged in the test chamber (2), one end of the fixing plate (302) is fixedly connected with the base (301), two sides of the other end are respectively fixedly connected with the connecting plate (31),
one side of the connecting plate (31) is provided with a power supply connector (311), and the power supply connector (311) is connected to a cable test system; the clamping plate (32) is provided with a power supply interface (321) which is in butt joint with the power supply connector (311), the clamping plate (32) is fixedly connected with the connecting plate (31) through a clamping device, so that the power supply connector (311) is embedded into the power supply interface (321), and the power supply connector (311) and the power supply interface (321) are in butt joint with each other;
one surface, back to the power supply connector (311), of the clamping plate (32) is concavely provided with a clamping opening (322), a conductive core (323) is arranged in the clamping opening (322), the conductive core (323) is electrically connected with the power supply connector (321), one end of the conductive core (323) is fixedly connected with the clamping plate (32), the other end of the conductive core is fixedly provided with a winding rod (324), the winding rod (324) is provided with a clamping cover (325), the clamping cover (325) is sleeved on the winding rod (324) in a threaded manner, and after a cable is wound on the winding rod (324), the cable is clamped between the clamping cover (325) and the conductive core (323) so that the cable testing system can supply power to the cable;
the clamping plate (32) is provided with a clamping ring piece (326), the clamping ring piece (326) is connected with the clamping plate (32) through a screw, and the clamping ring piece (326) is used for clamping two ends of a cable on the clamping plate (32);
the base (301) is provided with an impact mechanism (4), the impact mechanism (4) comprises a supporting plate (41), an elastic telescopic rod (42), an impact carbon block (43) and an electromagnet (44), the supporting plate (41) is fixedly connected with the base (301), the elastic telescopic rod (42) is positioned between the supporting plate (41) and the fixing plate (302), two ends of the elastic telescopic rod (42) are respectively and fixedly connected with the impact carbon block (43) and the supporting plate (41), one end of the electromagnet (44) is fixedly connected with the supporting plate (41), the other end of the electromagnet faces the impact carbon block (43), the impact carbon block (43) is provided with an iron block (45), when the electromagnet (44) is powered on, the impact carbon block (43) moves in the direction far away from the fixing plate (302), and when the electromagnet (44) is powered off, under the action of the elastic force of the elastic telescopic rod (42), the impact carbon block (43) collides with the fixing plate (302);
the combustion mechanism (201) and the water spraying mechanism (202) are arranged in the test box (2), and the combustion mechanism is used for combusting cables; the water spraying mechanism is used for spraying the cable;
the controller is respectively electrically connected with the combustion mechanism and the water spraying mechanism so as to control the start and stop of the combustion mechanism and the water spraying mechanism.
2. The fireproof cable combustion test device of claim 1, wherein: the test box is characterized in that an opening is formed in the top of the test box (2), a switch cover (21) is arranged at the opening, the switch cover (21) comprises two cover bodies (211), the two cover bodies (211) are arranged oppositely, the two cover bodies (211) are connected with the test box (2) in a sliding mode, two sliding groove plates (22) are arranged on two opposite side walls of the test box (2), the two sliding groove plates (22) on each side of the test box (2) are arranged oppositely, the two sliding groove plates (22) are connected with the test box (2) in a sliding mode, the sliding direction of the sliding groove plates (22) is the same as that of the cover bodies (211), a telescopic support (23) is arranged between the two sliding groove plates (22) on each side, the telescopic support (23) comprises two rod bodies (231) which are connected in a rotating mode, one end of each rod body (231) is connected with the two cover bodies (211) in a rotating mode through a driving piece (24), the other end of the cover body is embedded into the corresponding sliding groove plate (22) and is in sliding connection with the sliding groove plate (22), so that the two cover bodies (211) can slide along opposite directions simultaneously;
the outer wall of the test box (2) is provided with an opening and closing mechanism, the opening and closing mechanism comprises an opening and closing motor (25) and a driving rod (251), the opening and closing motor (25) is a double-shaft motor, and the opening and closing motor (25) is fixedly connected with the test box (2); two driving rods (251) are arranged, the two driving rods (251) are positioned on two sides of the opening and closing motor (25), and the driving rods (251) are arranged along the sliding direction of the cover body (211); the driving rod (251) is rotatably connected with the side wall of the test box (2), one end of the driving rod (251) is threaded through one driving piece (24), and the other end of the driving rod is in transmission connection with the opening and closing motor (25) through a bevel gear set (252); the opening and closing motor (25) drives the driving rod (251) to rotate, the driving piece (24) slides along the driving rod (251) so as to enable the corresponding cover body (211) to slide, and meanwhile, under the cooperation of the telescopic support (23), the other cover body (211) slides along the opposite direction.
3. A fire-resistant cable burning test apparatus according to claim 2, wherein: two sliding plates (303) are arranged on two sides of the base (301), one end of each sliding plate (303) is connected with the inner wall of the test box (2) in a sliding mode, the other end of each sliding plate (303) is fixedly connected with the base (301), a traction rod (304) is arranged on each sliding plate (303), one end of each traction rod (304) is connected with the corresponding sliding plate (303) in a rotating mode, the other end of each traction rod is connected with the corresponding cover body (211) in a sliding mode, the traction rods (304) on the same side are connected with different cover bodies (211), and therefore when the cover bodies (211) are opened or closed, the traction rods (304) control the lifting of the base;
the test chamber (1) is provided with a conveying mechanism, the conveying mechanism comprises a cable inspection device (101) and a cable delivery device (102), the cable inspection device (101) and the cable removal mechanism are both located above the test chamber (2), the cable inspection device (101) comprises an inspection frame (5), a push rod (51) and a first electric telescopic rod (52), the inspection frame (5) is fixedly arranged in the test chamber (1), inspection grooves (501) are formed in two sides of the inspection frame (5), one end of each inspection groove (501) is provided with an inspection opening (502) penetrating through the inspection frame (5), and the other end of each inspection groove (501) is provided with an inspection opening (503); two ends of the push rod (51) are slidably connected with the inspection frame (5), one end of the first electric telescopic rod (52) is fixedly connected with the inspection frame (5), and the other end of the first electric telescopic rod is fixedly connected with the push rod (51); after the two clamping plates (32) are connected with a cable, the two clamping plates (32) are embedded into the inspection slot (501) through an inspection opening (503), the clamping plates (32) are in sliding connection with the inspection slot (501), under the thrust of the first electric telescopic rod (52), the push rod (51) is abutted against the clamping plates (32) in the inspection slot (501), so that when the base (301) is lifted to the opening of the test box (2), the clamping plates (32) in the inspection slot (501) are pushed onto the connecting plate (31) through the inspection opening (502), and the power supply connector (311) is abutted against the power supply interface (321);
the cable sending-out device (102) comprises a moving-out frame (6), a transverse moving rod (61), a pneumatic sucker (62) and a second electric telescopic rod (63), the moving-out frame (6) is fixedly arranged in the laboratory (1), one end of the moving-out frame (6) faces to the inspection port (502), and the moving-out frame (6) is positioned above the inspection frame (5); the two ends of the transverse moving rod (61) are respectively connected with the moving-out frame (6) in a sliding mode, the pneumatic sucker (62) is fixedly connected with the transverse moving rod (61) through a pneumatic telescopic rod (621), one end of the second electric telescopic rod (63) is fixedly connected with the transverse moving rod (61), and the other end of the second electric telescopic rod is fixedly connected with the moving-out frame (6); after the cable test is finished, and the base (301) is lifted to the opening of the test box (2), under the pushing of the second electric telescopic rod (63), the transverse moving rod (61) moves to the upper side of the connecting plate (31), meanwhile, the pneumatic telescopic rod (621) descends, and the pneumatic suction disc (62) can suck the clamping plate (32) on the connecting plate (31), so that the tested cable can be moved out of the inspection frame (5).
4. A fire-resistant cable burning test apparatus according to claim 3, wherein: the connecting plate (31) is provided with a sliding part (33), and the clamping plate (32) is provided with a sliding groove (331) in sliding fit with the sliding part (33).
5. A fire-resistant cable burning test apparatus according to claim 3, wherein: the power supply connector (311) is arranged through the connecting plate (31) in a sliding mode, one end of the power supply connector (311) is connected with the connecting plate (31) through the abutting spring (312), and the other end of the power supply connector is of an arc structure.
6. A fire-resistant cable burning test apparatus according to claim 3, wherein: the cable sending-out device (102) is further provided with a collecting box (64), the collecting box (64) is located below the moving-out frame (6), and the collecting box (64) is fixedly connected with the test room (1).
7. A fire-resistant cable burning test apparatus according to claim 3, wherein: a trigger plate (34) is arranged at one end, far away from the fixed plate (302), of the connecting plate (31), a first trigger button (341) is arranged on the trigger plate (34), and the first trigger button (341) is abutted against the inspection frame (5) and then triggered; the controller is electrically connected with the first trigger button (341), the opening and closing motor (25), the first electric telescopic rod (52) and the second electric telescopic rod (63) respectively.
8. A fire-resistant cable burning test apparatus according to claim 3, wherein: the clamping device comprises two clamping disks (7), a clamping shaft (71) and a third electric telescopic rod (72), the two clamping disks (7) are respectively positioned on two sides of the fixed plate (302), the clamping disks (7) are rotatably connected with the fixed plate (302), and the clamping shaft (71) is fixedly arranged at the eccentric far position of the clamping disks (7); the third electric telescopic rod (72) is fixedly arranged on the fixing plate (302), a rack (721) is arranged at one end of the third electric telescopic rod (72), a fluted disc (701) meshed with the rack (721) is arranged on the clamping disc (7), the clamping disc (7) is driven by the third electric telescopic rod (72), and the clamping shaft (71) can climb over one end, far away from the base (301), of the fixing plate (302) so that the clamping shaft (71) can abut against and fix or release the clamping plate (32).
9. A fire-resistant cable burning test apparatus as claimed in claim 8, wherein: one surface, facing the clamping plate (32), of the fixing plate (302) is fixedly provided with a second trigger button (73), the second trigger button (73) is electrically connected with the controller, and after the clamping plate (32) in the inspection sending groove (501) is pushed onto the connecting plate (31), whether the power supply connector (311) and the power supply interface (321) are abutted to each other or not is judged.
10. The fireproof cable combustion test device of claim 1, wherein: the laboratory (1) is provided with a gas collecting mechanism and a gas supply mechanism,
the gas collecting mechanism comprises a gas collecting pipe (8), a gas collecting box (81) and a waste gas treatment box (82), one end of the gas collecting pipe (8) is in conduction connection with the test box (2), the other end of the gas collecting pipe is in conduction connection with the gas collecting box (81) and the waste gas treatment box (82) in sequence, one end, close to the test box (2), of the gas collecting pipe (8) is provided with a first switch valve (801), gas inlet ends of the gas collecting box (81) and the waste gas treatment box (82) are provided with a second switch valve (802) and a third switch valve (803), and the first switch valve (801), the second switch valve (802) and the third switch valve (803) are electrically connected with a controller;
the air supply mechanism comprises an air heater (91) and an oxygen supply machine (92), the air heater (91) and the oxygen supply machine (92) are respectively communicated and connected with the laboratory (1) through an air supply pipe (93), and the air heater (91) and the oxygen supply machine (92) are electrically connected with the controller.
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| CN202011377662.2A CN112305147B (en) | 2020-11-30 | 2020-11-30 | Fireproof cable combustion test device |
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| CN202011377662.2A CN112305147B (en) | 2020-11-30 | 2020-11-30 | Fireproof cable combustion test device |
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| CN112305147B CN112305147B (en) | 2021-09-07 |
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| CN116577455A (en) * | 2023-05-06 | 2023-08-11 | 重庆大学 | Fire resistance test method and device for fire resistance cable |
| CN116577458A (en) * | 2023-07-13 | 2023-08-11 | 南通市建筑科学研究院有限公司 | Environment-friendly insulation material combustion performance detection device for building engineering |
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