CN112675928A - Temperature impact test box - Google Patents
Temperature impact test box Download PDFInfo
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- CN112675928A CN112675928A CN202011427747.7A CN202011427747A CN112675928A CN 112675928 A CN112675928 A CN 112675928A CN 202011427747 A CN202011427747 A CN 202011427747A CN 112675928 A CN112675928 A CN 112675928A
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Abstract
The invention belongs to the technical field of detection equipment, and particularly relates to a temperature impact test box which comprises a high-temperature box and a low-temperature box, wherein a partition plate is arranged between the high-temperature box and the low-temperature box, a test basket is sleeved on the partition plate, the test basket comprises a basket body, a slide rail, a sealing cover and a heat insulation telescopic curtain, the slide rail is arranged on the periphery of the basket body and is in sliding connection with a lifting channel, the sealing cover is symmetrically arranged on the upper side and the lower side of the basket body, the basket body is wrapped by the heat insulation telescopic curtain, one end of the heat insulation telescopic curtain is fixed on the sealing cover in a sealing mode, the other end of the heat insulation telescopic curtain is provided with a clamping plate, a set of clamping pieces are respectively arranged on the upper side and the lower side of the partition plate, and a collision block is arranged on the slide rail.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to a temperature impact test box.
Background
The high-low temperature impact test box can be used for testing the degree of the material or the composite material which can be endured under the continuous environment of extremely high temperature and extremely low temperature instantly, and testing the chemical change or physical damage caused by expansion with heat and contraction with cold in the shortest time. The test object can also be electronic and electric appliance parts, automatic parts, communication components, electronic chips, automobile accessories, PCB substrates, metal, chemical materials, high polymer materials, plastic cement and the like. The high-low temperature impact test box is widely applied to the fields of national defense industry, aviation industry, household appliance industry and the like.
In the prior art, the high-low temperature impact test box has a plurality of types and styles, but the main body comprises a high-temperature box and a low-temperature box, and in the test process, the experiment area switching is carried out by pulling a sample frame in the whole box body from a low-temperature area (low-temperature box) to a high-temperature area (high-temperature box) and then from the high-temperature area to the low-temperature area for carrying out high-temperature and low-temperature impact. However, in the process of lifting the sample, not only the temperature of the sample is continuously changed after leaving the heat source, but also the time of the sample impacted by the temperature is directly prolonged, the intensity of the temperature impact is reduced, the test data can be influenced, and meanwhile, the temperature interpenetration of a high-temperature region and a low-temperature region in the transportation due to the poor sealing can also influence the temperature of the low-temperature region and the high temperature around the sample frame, and the test data can also be directly influenced, so that the key for improving the test precision is realized by reducing the temperature change of the sample in the lifting process and reducing the temperature interpenetration of the high-temperature region and the low-temperature region.
Disclosure of Invention
The purpose of the invention is: the temperature impact test box can reduce the temperature change of a sample in the lifting process, can reduce the temperature interpenetration of a high-temperature area and a low-temperature area, improves the test precision, reduces the mutual temperature influence of the high-temperature area and the low-temperature area, avoids consuming redundant energy for keeping constant temperature, saves energy, and installs a transmission system inside a partition plate (3), not only reduces the height of equipment and saves space, is convenient for transportation of the equipment and placement of a field, but also is located inside the equipment, can better protect the transmission system, and can prevent collision damage during movement.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a temperature impact test box comprises a control system, a refrigerating system, a heating system and a transmission system, and further comprises a high temperature box and a low temperature box, wherein a partition plate is arranged between the high temperature box and the low temperature box, a lifting channel is arranged on the partition plate, a test basket is sleeved on the lifting channel, the test basket comprises a basket body, two groups of slide rail assemblies, two sealing covers and two heat-insulating telescopic curtains, the two groups of slide rail assemblies are symmetrically positioned at two sides of the basket body, one group of slide rail assemblies comprises two slide rails, four slide rails are positioned at the periphery of the basket body, the lifting channel is provided with slide rails matched with the slide rails, the side surfaces corresponding to the two slide rails in the slide rail assemblies in the same group are divided into a connecting area, a clearance area and a sliding area along the vertical direction, a collision block is arranged in the clearance area of the slide rails, the two sealing covers are symmetrically positioned at the upper, the basket body is wrapped by the heat insulation retractable curtain, one end of the heat insulation retractable curtain is hermetically fixed between the cover edge and the basket body, the other end of the heat insulation retractable curtain is provided with a clamping plate in sliding connection with the slide rail, the upper side and the lower side of the partition plate are respectively provided with a set of clamping parts, the two sets of clamping parts are axisymmetrical relative to the central axis in the X-axis direction of the lifting channel, one set of clamping parts comprise two sets of clamping components axisymmetrical relative to the central axis in the Z-axis direction of the lifting channel, each clamping component comprises a plurality of auxiliary clamping buckles and a self-locking clamping buckle, the self-locking clamping buckles are positioned on one side of the gap area of the slide rail, one side of each self-locking clamping buckle is provided with a position detection switch, each self-locking clamping buckle comprises a chute seat, a slide clamp and a reset spring, each slide clamp and, the transmission system is located inside the partition.
By adopting the technical scheme of the invention, the temperature impact test box is filled with heat insulation materials around the high-temperature box and the low-temperature box and on the inner wall of the partition plate, so as to ensure the temperature stability of the high-temperature box and the low-temperature box; the four sliding rails are matched with the sliding rails, so that the test basket can move stably when moving up and down, the equipment is stable in operation, the service life of the structure is prolonged, and the noise of collision is reduced; the connecting area of the slide rail is an area where the slide rail is connected with the basket body in the vertical direction, the sliding area is an area where the slide rail is connected with the slide way, the gap area is a gap between the connecting area and the sliding area and is used for installing the collision blocks, and the positions of the four collision blocks are respectively adjusted according to the upper position and the lower position of the self-locking buckle positions on the same side, so that when a cover edge in any box body of a high-temperature box or a low-temperature box is about to be in contact with and closed by a partition plate, a heat insulation telescopic curtain of the other box body is triggered by the; the cover edge is used for collecting the heat-insulation telescopic curtain between the basket body and the cover edge to protect the heat-insulation telescopic curtain, and meanwhile, when one end of the test basket is fastened with the partition plate, the cover edge can also play a heat-insulation role to reduce temperature interpenetration; the heat insulation telescopic curtain can insulate heat and preserve heat, avoids heat transfer, one end of the heat insulation telescopic curtain is hermetically fixed between the cover edge and the basket body, the other end of the heat insulation telescopic curtain is provided with a clamping plate in sliding connection with the sliding rail, and the basket body positioned in the same high-temperature box or low-temperature box can be isolated from the temperature of the box body through the matching of the clamping plate and the clamping assembly, so that the heat insulation function is realized, and the temperature change of a sample in the lifting process is reduced; because the two groups of buckle components of the same clamping piece are axisymmetric relative to the central axis in the Z-axis direction of the lifting channel, two self-locking buckles in the same box body of the high-temperature box or the low-temperature box are axisymmetric along the central axis in the Z-axis direction, when the self-locking buckles are buckled with the clamping plate, the clamping plate is uniformly stressed, objects in the heat-insulating telescopic curtain can be well sealed, meanwhile, the auxiliary buckles are used for simply buckling the clamping plate to share the stress, and the sealing performance between the heat-insulating telescopic curtain and the partition plate is ensured; the two clamping pieces are axisymmetric relative to a central axis in the X-axis direction of the lifting channel, so that the slide rail for installing the collision block is provided with only one self-locking buckle matched with the slide rail in the vertical direction, when the test basket is in contact with one side of the partition plate, the corresponding collision block is in contact with the V-shaped piece on the other side of the partition plate, the self-locking buckle unlocks the clamping plate, the heat insulation telescopic curtain is reset to be retracted into a gap between the cover edge and the basket body, the to-be-tested piece is immediately exposed in the box body, and the temperature impact; the collision block can trigger the self-locking buckle to unlock, and can also enable the position detection switch to detect the stroke, if a position detection switch signal is detected, the control system immediately cuts off the power supply, so that damage caused by excessive stroke is avoided, and the equipment is protected; the sliding groove seat can be fixed or embedded on the surface of the partition plate, the sliding clamp can only move along two sides of the sliding groove seat by using the sliding clamp in a matching way with the sliding groove seat, the collision block is matched with the V-shaped piece, when the collision block touches the V-shaped piece, the inclined plane of the V-shaped piece and the collision block slide relatively to enable the sliding clamp to translate, the reset spring is compressed, the sliding clamp and the clamping plate are unlocked simultaneously, and when the collision block moves in the opposite direction, the reset spring resets to enable the sliding clamp to reset; the invention can reduce the temperature change of the sample in the lifting process, and can also reduce the temperature interpenetration of the high-temperature area and the low-temperature area, thereby not only improving the testing precision, but also reducing the mutual temperature influence of the high-temperature area and the low-temperature area, avoiding the consumption of redundant energy for keeping constant temperature, and saving energy.
Further inject, thermal-insulated flexible curtain includes two thermal-insulated sealed cloth and a flexible curtain frame, flexible curtain frame is including connecting base, outer frame, internal frame and shell fragment, adjacent two be provided with the internal frame between the outer frame, adjacent two fixedly connected with shell fragment, two between outer frame and the internal frame thermal-insulated sealed cloth wraps up flexible curtain frame internal surface and surface respectively completely. According to the structure, the heat insulation sealing cloth can adopt the aluminum silicate fiber felt, and the telescopic curtain frame is wrapped by the heat insulation sealing cloth, so that the heat insulation telescopic curtain has a good heat insulation effect, and meanwhile, the heat insulation sealing cloth can be folded along the telescopic curtain frame, so that the heat insulation sealing cloth is prevented from being irregularly folded to interfere with other assemblies to work, and is prevented from being pulled and damaged; and use the shell fragment to make thermal-insulated flexible curtain have elasticity also can the shock attenuation, when the cardboard did not buckle with buckle subassembly, thermal-insulated flexible curtain can contract in sealed lid. In fact, the heat insulation telescopic curtain with other structures can be considered according to specific conditions, so that the function of resetting and heat insulation is achieved.
Further limit, the inside of the heat insulation telescopic curtain is vacuum or low-pressure, and the outer frame and the inner frame are both provided with vent holes. By adopting the structure, the heat insulation effect of the heat insulation telescopic curtain is improved, the heat insulation telescopic curtain is easy to shrink due to vacuum or low air pressure, and the heat insulation telescopic curtain can shrink in the sealing cover when the clamping plate is not buckled with the buckle assembly; and the ventilation holes enable the interior of the heat-insulating telescopic curtain to be communicated with each other, so that the heat-insulating telescopic curtain can be conveniently expanded better. In fact, the structure can be considered to increase the heat insulation effect according to specific situations.
Further inject, the cardboard is equipped with first sealed pad, the lid is followed and is equipped with the second sealed pad. By adopting the structure, the sealing performance between the heat insulation telescopic curtain and the partition plate and between the cover edge and the partition plate are improved, and the heat insulation effect can be better. In fact, other sealing structures may be used as the case may be.
Further, the clamping plate extends out of the inner wall of the cover edge in the horizontal direction, and does not extend out of the inner wall of the second sealing gasket. With the structure, the cover can press the clamping plate downwards, and the clamping plate is buckled with the buckle assembly when the cover is in contact with the partition plate. In fact, also can consider to use other structures according to particular case, when guaranteeing lid edge and baffle contact, cardboard and buckle subassembly lock.
Further limited, the auxiliary buckle side is P-shaped. Such structure uses the cambered surface, and supplementary buckle can assist the auto-lock buckle to fix the cardboard, guarantees to seal, and when the auto-lock buckle unblock, the cardboard then just can shake off automatically that supplementary buckle resets. In fact, other arc-shaped structural shapes can be used for the auxiliary buckle according to specific conditions.
Further limit, the slip checkpost is equipped with the direction inclined plane with cardboard assorted. Such structure, when the cardboard pushes down with the direction inclined plane contact, the slip checkpost is relative slip, compression reset spring, when cardboard and slip checkpost lock, compression reset spring resets the locking cardboard. In fact, other structures can be considered according to specific situations to facilitate the locking of the sliding clamp and the clamping plate.
Further defined, the striking block is wedge-shaped and matched with the V-shaped piece. Such structure, when hitting the piece and touch V type spare, V type spare inclined plane with hit the piece relative slip for the translation of slip checkpost, cardboard unblock, wedge shape can increase with the area of contact of V type spare, and the atress is more even, protection architecture, increase life. In fact, a trapezoidal shape may also be used, as the case may be, in consideration of the ram.
Further inject, transmission system includes servo motor, transfer line, reduction gear and transmission rack, the sliding region at the slide rail is inlayed to the transmission rack, servo motor, transfer line and reduction gear are all fixed in inside the baffle. Such structure locates transmission system inside the proof box, for current temperature shock proof box with transmission system setting at the equipment top reduced the equipment height, more save space, protection transmission system that also can be better, collision damage when preventing to remove, and use servo motor to improve the precision that the test basket removed, avoid the test basket collision damage. In fact, other transmission modes can be considered according to specific situations.
The speed reducer comprises a first driven wheel, a second driven wheel, a third driven wheel and a fourth driven wheel, the first driven wheel is fixedly connected with the transmission rod, the first driven wheel is respectively meshed with the second driven wheel and the third driven wheel, the third driven wheel is meshed with the fourth driven wheel, the second driven wheel and the fourth driven wheel are respectively meshed with the corresponding transmission racks, the first driven wheel and the third driven wheel are identical in shape, and the second driven wheel and the fourth driven wheel are identical in shape. Such structure adopts two drive racks for the test basket atress is more even, reduces deformation, and protection architecture keeps good precision for a long time, and extension equipment life, and first driven wheel is the same with the third from driving wheel shape, and the second is driven the same from driving wheel and fourth from driving wheel shape, guarantees that the second from driving wheel and fourth from driving wheel synchronous working. In fact, the shape relationship of the first driven wheel, the second driven wheel, the third driven wheel and the fourth driven wheel can be considered according to specific conditions, and synchronous operation can be ensured.
Compared with the prior art, the invention has the following advantages:
1. the invention can reduce the temperature change of the sample in the lifting process, and can also reduce the temperature interpenetration of the high-temperature area and the low-temperature area, thereby not only improving the testing precision, but also reducing the mutual influence of the high-temperature area and the low-temperature area, and saving energy;
2. according to the invention, the self-locking and unlocking of the heat-insulating telescopic curtain are realized by the up-and-down movement of the test basket, the mutual influence of a high-temperature area and a low-temperature area is reduced, the structure is simple, extra power is not required to be provided, and the cost is saved;
3. the auxiliary buckle and the self-locking buckle are reasonably matched to complete locking of the clamping plate in a matching manner, so that the locking device is simple in structure, low in cost and convenient to use in practice;
4. the cardboard horizontal direction stretches out the lid along the inner wall, and does not stretch out the sealed inner wall of pad of second. With the structure, the clamping plate can be pressed downwards by the cover edge, and the clamping plate is buckled with the buckle assembly when the cover edge is in contact with the partition plate;
5. the transmission system is arranged in the partition plate, so that the equipment height is reduced and the space is saved compared with the existing temperature impact test box in which the transmission system is arranged at the top of the equipment, the moving precision of the test basket is improved by using the servo motor, and the collision damage of the test basket is avoided;
6. adopt two transmission racks for the test basket atress is more even, reduces deformation, and protection architecture keeps good precision for a long time, prolongs equipment life.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of an embodiment of a temperature impact test chamber according to the present invention;
FIG. 2 is a first schematic diagram illustrating an internal structure of an embodiment of a temperature impact test chamber according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
FIG. 5 is a schematic diagram of the internal structure of an embodiment of a temperature impact test chamber according to the present invention;
FIG. 6 is a schematic structural diagram of a retractable curtain frame of an embodiment of a temperature impact test chamber according to the present invention;
FIG. 7 is an enlarged view of the structure at C in FIG. 6;
FIG. 8 is a schematic structural view of a self-locking buckle according to an embodiment of the temperature impact test chamber of the present invention;
FIG. 9 is a schematic diagram of a position structure of a self-locking buckle and a position detection switch according to an embodiment of the temperature impact test chamber of the invention;
FIG. 10 is a schematic diagram of a partial cross-sectional structure of an embodiment of a temperature impact test chamber according to the present invention;
FIG. 11 is a schematic diagram of a second partial sectional structure of an embodiment of a temperature impact test chamber according to the present invention;
the main element symbols are as follows:
the high-temperature box 1, the low-temperature box 2, the partition 3, the lifting channel 31, the buckle assembly 321, the auxiliary buckle 3211, the position detection switch 34, the baffle 35, the basket body 41, the slide rail 5, the connection region 51, the gap region 52, the striking block 521, the sliding region 53, the sealing cover 6, the cover rim 61, the second sealing gasket 611, the clamping plate 71, the sealing gasket 711, the telescopic curtain frame 72, the connection base 721, the outer frame 722, the inner frame 723, the elastic sheet 724, the vent hole 725, the heat insulation sealing cloth 73, the self-locking buckle 8, the chute seat 81, the sliding clip 82, the guide inclined surface 821, the return spring 83, the V-shaped member 84, the servo motor 9, the transmission rod 91, the reducer 92, the first driven wheel 921, the second driven wheel 922, the third driven wheel 923, the fourth driven wheel 924, the.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1-11, the temperature impact test box of the present invention comprises a control system, a refrigeration system, a heating system and a transmission system, and further comprises a high temperature box 1 and a low temperature box 2, a partition plate 3 is arranged between the high temperature box 1 and the low temperature box 2, the partition plate 3 is provided with a lifting channel 31, the lifting channel 31 is sleeved with a test basket, the test basket comprises a basket body 41, two sets of slide rail assemblies, two sealing covers 6 and two heat insulation retractable curtains, the two sets of slide rail assemblies are symmetrically located at two sides of the basket body 41, one set of slide rail assemblies comprises two slide rails 5, four slide rails 5 are located around the basket body 41, the lifting channel 31 is provided with a slide rail matched with the slide rail 5, the side surfaces corresponding to the two slide rails 5 in the same set of slide rail assemblies are vertically divided into a connection area 51, a clearance area 52 and a sliding area 53, a collision block 521 is arranged in the clearance area 52 of the slide, the sealing cover 6 is provided with a ring of cover edge 61, the basket body 41 is wrapped by the heat insulation telescopic curtain, one end of the heat insulation telescopic curtain is hermetically fixed between the cover edge 61 and the basket body 41, the other end of the heat insulation telescopic curtain is provided with a clamping plate 71 which is in sliding connection with the sliding rail 5, the upper side and the lower side of the partition plate 3 are respectively provided with a set of clamping parts, the two sets of clamping parts are axisymmetric relative to a central axis in the X-axis direction of the lifting channel 31, one set of clamping parts comprises two sets of clamping components 321 axisymmetric relative to a central axis in the Z-axis direction of the lifting channel 31, each clamping component 321 comprises a plurality of auxiliary clamping buckles 3211 and a self-locking buckle 8, the self-locking buckle 8 is positioned at one side of the gap area 52 of the sliding rail 5, one side of the self-locking buckle 8 is provided with a position detection switch 34, the self-, the V-shaped member 84 and the position detection switch 34 are both mated with the same striker 521, and the transmission system is located inside the bulkhead 3.
By adopting the technical scheme of the invention, the temperature impact test box is filled with heat insulation materials around the high-temperature box 1 and the low-temperature box 2 and on the inner wall of the partition plate 3 so as to ensure the temperature stability of the high-temperature box 1 and the low-temperature box 2; the four sliding rails 5 are matched with the sliding ways, so that the test basket can move stably when moving up and down, the equipment is stable in operation, the service life of the structure is prolonged, and the noise of collision is reduced; the connecting area 51 of the slide rail 5 is an area where the slide rail 5 is connected with the basket body 41 in the vertical direction, the sliding area 53 is an area where the slide rail 5 is connected with a slide way, the gap area 52 is a gap between the connecting area 51 and the sliding area 53 and is used for installing the collision block 521, and the positions of the four collision blocks 521 are respectively adjusted according to the upper and lower positions of the self-locking buckle 8 on the same side, so that when a cover edge 61 in any box body of the high-temperature box 1 or the low-temperature box 2 is about to be in contact with and closed by the partition plate 3, the heat-insulating retractable curtain of the other box body is triggered by the self-locking; the cover edge 61 is used for collecting the heat-insulating telescopic curtain between the basket body 41 and the cover edge 61 to protect the heat-insulating telescopic curtain, and meanwhile, when one end of the test basket is fastened with the partition plate 3, the cover edge 61 can also play a heat-insulating role to reduce temperature interpenetration; the heat insulation telescopic curtain can insulate heat and preserve heat, avoids heat transfer, one end of the heat insulation telescopic curtain is hermetically fixed between the cover edge 61 and the basket body 41, the other end of the heat insulation telescopic curtain is provided with the clamping plate 71 in sliding connection with the sliding rail 5, and the basket body 41 positioned in the same high-temperature box 1 or low-temperature box 2 can be isolated from the temperature of the box body through the matching of the clamping plate 71 and the clamping component 321, so that the heat insulation telescopic curtain plays a role in insulating heat and preserving heat, and reduces the temperature change of a sample in the lifting process; because the two groups of buckle components 321 of the same clamping piece are axisymmetrical relative to the central axis in the Z-axis direction of the lifting channel 31, two self-locking buckles 8 in the same box body of the high-temperature box 1 or the low-temperature box 2 are axisymmetrical along the central axis in the Z-axis direction, so that when the self-locking buckles 8 are buckled with the clamping plates 71, the clamping plates 71 are uniformly stressed, objects in the heat-insulating telescopic curtain can be well sealed, meanwhile, the auxiliary buckles 3211 are used for simply buckling the clamping plates 71 to share the stress, and the sealing performance between the heat-insulating telescopic curtain and the partition plate 3 is ensured; the two clamping pieces are axisymmetrical relative to the central axis in the X-axis direction of the lifting channel 31, so that the slide rail 5 provided with the collision block 521 is provided with only one self-locking buckle 8 in the vertical direction, and when the test basket is in contact with one side of the partition plate 3, the corresponding collision block 521 is in contact with the V-shaped part 84 on the other side of the partition plate 3, so that the self-locking buckle 8 unlocks the clamping plate 71, the heat insulation telescopic curtain is reset to be retracted into the gap between the cover edge 61 and the basket body 41, and the part to be tested is immediately exposed in the box body to complete the temperature impact test; the collision block 521 can trigger the self-locking buckle 8 to unlock, and can also enable the position detection switch 34 to detect the stroke, if the position detection switch 34 signal is detected, the control system immediately cuts off the power supply, so that the damage caused by excessive stroke is avoided, and the equipment is protected; the sliding chute seat 81 can be fixed or embedded on the surface of the partition board 3, the sliding clip 82 can only move along two sides of the sliding chute seat 81 by matching the sliding clip 82 with the sliding chute seat 81, the striking block 521 is matched with the V-shaped member 84, when the striking block 521 touches the V-shaped member 84, the inclined surface of the V-shaped member 84 and the striking block 521 slide relatively, so that the sliding clip 82 translates, the return spring 83 is compressed, the sliding clip 82 is unlocked with the clamping board 71, and when the striking block 521 moves in the opposite direction, the return spring 83 is reset, so that the sliding clip 82 is reset; the invention can reduce the temperature change of the sample in the lifting process, and can also reduce the temperature interpenetration of the high-temperature area and the low-temperature area, thereby not only improving the testing precision, but also reducing the mutual temperature influence of the high-temperature area and the low-temperature area, avoiding the consumption of redundant energy for keeping constant temperature, and saving energy.
Preferably, the thermal insulation retractable curtain comprises two thermal insulation sealing cloths 73 and a retractable curtain frame 72, the retractable curtain frame 72 comprises a connecting base 721, outer frames 722, inner frames 723 and elastic sheets 724, the inner frames 723 are arranged between the two adjacent outer frames 722, the elastic sheets 724 are fixedly connected between the two adjacent outer frames 722 and the inner frames 723, and the two thermal insulation sealing cloths 73 completely wrap the inner surface and the outer surface of the retractable curtain frame 72 respectively. In such a structure, the heat-insulating sealing cloth 73 can adopt an aluminum silicate fiber felt, and the telescopic curtain frame 72 is wrapped by the heat-insulating sealing cloth 73, so that the heat-insulating telescopic curtain has a good heat-insulating effect, meanwhile, the heat-insulating sealing cloth 73 can be folded along the telescopic curtain frame 72, the phenomenon that other components are irregularly interfered during folding is avoided, and the heat-insulating sealing cloth 73 is prevented from being pulled and damaged; the elastic sheet 724 is used for ensuring the thermal insulation telescopic curtain to have telescopic performance and also can absorb shock, and when the clamping plate 71 is not buckled with the buckle component 321, the thermal insulation telescopic curtain can be contracted in the sealing cover 6. In fact, the heat insulation telescopic curtain with other structures can be considered according to specific conditions, so that the function of resetting and heat insulation is achieved.
Preferably, the inside of the thermal insulation telescopic curtain is vacuum or low-pressure, and the outer frame 722 and the inner frame 723 are both provided with vent holes 725. With the structure, the heat insulation effect of the heat insulation telescopic curtain is improved, the heat insulation telescopic curtain is easy to shrink due to vacuum or low air pressure, and the heat insulation telescopic curtain can shrink into the sealing cover 6 when the clamping plate 71 is not buckled with the buckle component 321; and the ventilation holes 725 enable the interiors of the heat-insulating retractable curtains to be mutually communicated, so that the heat-insulating retractable curtains can be better relaxed. In fact, the structure can be considered to increase the heat insulation effect according to specific situations.
Preferably, the card 71 is provided with a first gasket 711 and the cover rim 61 is provided with a second gasket 611. With the structure, the sealing performance between the heat insulation telescopic curtain and the partition plate 3 and between the cover edge 61 and the partition plate 3 is improved, and the heat insulation can be better realized. In fact, other sealing structures may be used as the case may be.
Preferably, the card 71 horizontally protrudes from the inner wall of the cover edge 61, and does not protrude from the inner wall of the second gasket 611. With the structure, the cover edge 61 can press the clamping plate 71 downwards, and when the cover edge 61 is contacted with the partition 3, the clamping plate 71 is buckled with the buckle component 321. In fact, other structures can be considered according to specific situations to ensure that the snap plate 71 is buckled with the snap component 321 when the cover edge 61 is contacted with the partition 3.
Preferably, the auxiliary buckle 3211 is P-shaped on the side. Such structure uses the cambered surface, and supplementary buckle 3211 can assist auto-lock buckle 8 to fix cardboard 71, guarantees sealedly, and when the 8 unblocks of auto-lock buckle, cardboard 71 then can shake off automatically and assist buckle 3211 resets. In fact, other arc-shaped configurations of the auxiliary clip 3211 may be used depending on the specific situation.
Preferably, the slide catch 82 is provided with a guide slope 821 matching with the catch plate 71. With such a structure, when the catch plate 71 is pressed down, the catch plate comes into contact with the guide slope 821, the slide hook 82 slides relatively, the return spring 83 is compressed, and when the catch plate 71 is engaged with the slide hook 82, the return spring 83 is compressed to return the lock catch plate 71. In fact, other structures may be used to facilitate the locking of the slide clamp 82 with the card plate 71, as the case may be.
Preferably, the bumps 521 are wedge shaped and mate with the chevrons 84. With the structure, when the striking block 521 touches the V-shaped element 84, the inclined surface of the V-shaped element 84 slides relative to the striking block 521, so that the sliding clamp 82 translates, the clamping plate 71 is unlocked, the wedge shape can increase the contact area with the V-shaped element 84, the stress is more uniform, the structure is protected, and the service life is prolonged. In practice, a trapezoidal shape may also be used with respect to the strike 521 depending on the particular situation.
Preferably, as shown in fig. 10 and 11, the transmission system includes a servo motor 9, a transmission rod 91, a speed reducer 92 and a transmission rack 93, the transmission rack 93 is embedded in the sliding region 53 of the sliding rail 5, and the servo motor 9, the transmission rod 91 and the speed reducer 92 are all fixed inside the partition 3. Such structure, locate test box inside with transmission system, transmission system sets up transmission system at the equipment top for current temperature shock test box and has reduced the equipment height, more save space, protection transmission system that also can be better, collision damage when preventing to remove, and use servo motor 9 to improve the precision that the test basket removed, avoid test basket collision damage, 3 outer walls of baffle still are equipped with detachable baffle 35, be equipped with the heat dissipation strip on the baffle 35, so not only be convenient for overhaul transmission system, and servo motor 9 also can be good heat dissipation, reduction gear 92 still is connected with bounding wall 94, bounding wall 94 lives servo motor 9 and transfer line 91 parcel, bounding wall 94 goes out to fill thermal-insulated cotton, avoid the temperature of high-temperature box 1 and low-temperature box 2 to cause the influence to servo motor 9's work like this, also convenient to overhaul. In fact, other transmission modes can be considered according to specific situations.
Preferably, the number of the transmission racks 93 is two, and the transmission racks are symmetrically arranged in two sliding areas 53 of any one set of slide rail assembly, the speed reducer 92 comprises a first driven wheel 921, a second driven wheel 922, a third driven wheel 923 and a fourth driven wheel 924, the first driven wheel 921 is fixedly connected with the transmission rod 91, the first driven wheel 921 is respectively meshed with the second driven wheel 922 and the third driven wheel 923, the third driven wheel 923 is meshed with the fourth driven wheel 924, the second driven wheel 922 and the fourth driven wheel 924 are respectively meshed with the corresponding transmission racks 93, the first driven wheel 921 and the third driven wheel have the same shape, and the second driven wheel 922 and the fourth driven wheel 924 have the same shape. Such structure adopts two drive racks 93 for the test basket atress is more even, reduces deformation, and the protection architecture keeps good precision for a long time, and extension equipment life, and first driven wheel 921 is the same with third follow driving wheel 923 shape, and the second is followed driving wheel 922 and fourth and is followed driving wheel 924 shape the same, guarantees that the second follows driving wheel 922 and fourth and follows driving wheel 924 synchronous working. In fact, the synchronous operation may be ensured by taking into account the shape relationship of the first driven wheel 921, the second driven wheel 922, the third driven wheel 923, and the fourth driven wheel 924 as the case may be.
The working principle is as follows:
when an object to be tested is subjected to high-temperature test in the high-temperature box 1 above and is ready to move to the low-temperature box 2, at the moment, the clamping piece on the lower side of the partition plate 3 is buckled with the clamping plate 71 on the lower side of the test basket, the partition plate 3 is in two-layer heat insulation with the cover edge 61 and the partition plate 3 is in two-layer heat insulation with the heat insulation telescopic curtain, the servo motor 9 sequentially drives through the transmission rod 91, the speed reducer 92 and the transmission rack 93, so that when the test basket moves downwards, the partition plate 3 and the cover edge 61 are separated to move downwards, and because the clamping piece on the lower side of the partition plate 3 is buckled with the clamping plate 71 on the lower side of the test basket, the heat insulation sealing cloth 73 positioned in the cover edge 61 is gradually opened, the heat insulation telescopic curtain continuously seals the test basket in the low-temperature box 2, cold air cannot enter the test basket in advance to cool the object to be tested, the object to, in the clamping piece at the lower side of the partition board 3, the V-shaped piece 84 at the tail part of the sliding clamp 82 is contacted with the corresponding impact block 521 arranged at the gap area 52, the impact block 521 gradually pulls the sliding clamp 82 to enable the sliding clamp 82 to slowly translate and unlock the clamping board 71 at the lower side of the test basket, the heat insulation retractable curtain is rapidly reset through the double pressure of vacuum and the elastic sheet 724, and in the process that the heat insulation sealing cloth 73 is put in between the cover edge 61 and the basket body 41, the elastic sheet 724 reversely acts to play a shock absorption effect to avoid the violent collision of the clamping board 71 to cause noise and damage, and along with the unlocking of the clamping board 71, the test basket is suddenly opened, the object to be tested is directly impacted by low temperature from high temperature to finish the test, meanwhile, the clamping board 71 at the upper end of the test basket is buckled with the clamping piece at the upper side of the partition board 3 to finish, the servo motor 9 is kept unchanged, extra work is not needed, and therefore energy is saved, and the servo motor is automatically stopped at the moment; the principle of the object to be measured when the object is to be moved to the high-temperature box 1 is the same as the above principle; the collision block 521 is matched with the position detection switch 34, when the position detection switch 34 detects a position signal of the collision block 521, the control system immediately cuts off the power supply to avoid damage caused by excessive stroke, and thus, the position detection switch 34 and the servo motor 9 together perform two-layer protection on the stroke of the test basket to avoid the damage caused by collision due to over stroke of the test basket.
The invention can reduce the temperature change of the sample in the lifting process, and can also reduce the temperature interpenetration of the high-temperature area and the low-temperature area, thereby not only improving the testing precision, but also reducing the mutual influence of the high-temperature area and the low-temperature area, and saving energy; the self-locking and unlocking of the heat-insulation telescopic curtain are realized by the up-and-down movement of the test basket, the mutual influence of a high-temperature area and a low-temperature area is reduced, the structure is simple, extra power is not required, and the cost is saved; the auxiliary buckle and the self-locking buckle are reasonably matched to complete locking of the clamping plate in a matched manner, so that the structure is simple, the cost is low, and the practical use is convenient; the clamping plate extends out of the inner wall of the cover edge in the horizontal direction, and does not extend out of the inner wall of the second sealing gasket, so that the clamping plate can be pressed down by the cover edge, and the clamping plate is buckled with the clamping component when the cover edge is in contact with the partition plate; the transmission system is arranged in the partition plate, so that the equipment height is reduced and the space is saved compared with the existing temperature impact test box in which the transmission system is arranged at the top of the equipment, the moving precision of the test basket is improved by using the servo motor, and the collision damage of the test basket is avoided; adopt two transmission racks for the test basket atress is more even, reduces deformation, and protection architecture keeps good precision for a long time, prolongs equipment life.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a temperature shock test box, includes control system, refrigerating system, heating system and transmission system, still includes high-temperature box (1) and low-temperature box (2), be equipped with baffle (3) between high-temperature box (1) and low-temperature box (2), baffle (3) are equipped with lift passageway (31), lift passageway (31) cover is equipped with test basket, its characterized in that: the test basket comprises a basket body (41), two groups of slide rail assemblies, two sealing covers (6) and two heat-insulating telescopic curtains, wherein the two groups of slide rail assemblies are symmetrically positioned at two sides of the basket body (41), one group of slide rail assemblies comprise two slide rails (5), four slide rails (5) are positioned around the basket body (41), a lifting channel (31) is provided with a slide way matched with the slide rails (5), the side surfaces corresponding to the two slide rails (5) in the same group of slide rail assemblies are vertically divided into a connecting area (51), a clearance area (52) and a sliding area (53), a collision block (521) is arranged in the clearance area (52) of each slide rail (5), the two sealing covers (6) are symmetrically positioned at the upper side and the lower side of the basket body (41), the sealing covers (6) are provided with a ring of cover edges (61), the basket body (41) is wrapped by the heat-insulating telescopic curtains, and one end of each heat-insulating telescopic curtain is hermetically fixed between the cover edge (61) and the basket, the other end of the heat insulation telescopic curtain is provided with a clamping plate (71) in sliding connection with a sliding rail (5), the upper side and the lower side of the partition plate (3) are respectively provided with a set of clamping pieces, the two sets of clamping pieces are axisymmetric relative to a central axis in the X-axis direction of the lifting channel (31), one set of clamping pieces comprises two sets of clamping components (321) axisymmetric relative to a central axis in the Z-axis direction of the lifting channel (31), each clamping component (321) comprises a plurality of auxiliary clamping buckles (3211) and a self-locking clamping buckle (8), each self-locking clamping buckle (8) is positioned at one side of a gap area (52) of the sliding rail (5), one side of each self-locking clamping buckle (8) is provided with a position detection switch (34), each self-locking clamping buckle (8) comprises a sliding groove seat (81), a sliding clamp (82) and a reset spring (83, the rear side of the sliding clamp (82) is provided with a V-shaped piece (84), and the V-shaped piece (84) and the position detection switch (34) are matched with the collision block (521) on the same side.
2. A temperature impact test chamber according to claim 1, wherein: thermal-insulated flexible curtain includes two thermal-insulated sealed cloths (73) and a flexible curtain frame (72), flexible curtain frame (72) are including connecting base (721), outer frame (722), inner frame (723) and shell fragment (724), adjacent two be provided with inner frame (723), adjacent two between outer frame (722) fixedly connected with shell fragment (724), two between outer frame (722) and inner frame (723) thermal-insulated sealed cloth (73) wraps up flexible curtain frame (72) internal surface and surface completely respectively.
3. A temperature impact test chamber according to claim 2, wherein: the interior of the heat insulation telescopic curtain is vacuum or low-pressure, and the outer frame (722) and the inner frame (723) are both provided with vent holes (725).
4. A temperature impact test chamber according to claim 1, wherein: the clamping plate (71) is provided with a first sealing gasket (711), and the cover edge (61) is provided with a second sealing gasket (611).
5. A temperature impact test chamber according to claim 4, wherein: the clamping plate (71) extends out of the inner wall of the cover edge (61) in the horizontal direction, and does not extend out of the inner wall of the second sealing gasket (611).
6. A temperature impact test chamber according to claim 1, wherein: the side surface of the auxiliary buckle (3211) is P-shaped.
7. A temperature impact test chamber according to claim 1, wherein: the sliding clamp (82) is provided with a guide inclined surface (821) matched with the clamping plate (71).
8. A temperature impact test chamber according to claim 1, wherein: the striking block (521) is wedge-shaped and is matched with the V-shaped piece (84).
9. A temperature impact test chamber according to claim 1, wherein: the transmission system comprises a servo motor (9), a transmission rod (91), a speed reducer (92) and a transmission rack (93), the transmission rack (93) is embedded in a sliding area (53) of the sliding rail (5), and the servo motor (9), the transmission rod (91) and the speed reducer (92) are fixed inside the partition plate (3).
10. A temperature impact test chamber according to claim 9, wherein: drive rack (93) are totally two to the symmetry sets up in arbitrary a set of in two sliding zone (53) of slide rail set spare, reduction gear (92) include first follow driving wheel (921), second follow driving wheel (922), third follow driving wheel (923) and fourth follow driving wheel (924), first follow driving wheel (921) and transfer line (91) fixed connection, first follow driving wheel (921) respectively in second follow driving wheel (922) and third follow driving wheel (923) meshing, third follow driving wheel (923) and fourth follow driving wheel (924) meshing, second follow driving wheel (922) and fourth follow driving wheel (924) respectively with corresponding drive rack (93) meshing, first follow driving wheel (921) and third follow driving wheel (923) shape the same, second follow driving wheel (922) and fourth follow driving wheel (924) shape the same.
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| CN113484643A (en) * | 2021-07-09 | 2021-10-08 | 深圳市优瑞特检测技术有限公司 | Electronic structural component cold and hot impact test method and test equipment |
| CN114433255A (en) * | 2022-01-29 | 2022-05-06 | 江苏拓米洛环境试验设备有限公司 | Temperature impact test box |
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| CN112675928B (en) | 2021-09-14 |
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Denomination of invention: A temperature shock test chamber Granted publication date: 20210914 Pledgee: China Minsheng Banking Corp Chongqing branch Pledgor: CHONGQING ARTEST CAN SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2024980019419 |