A two-chamber high and low temperature impact test chamber

Abstract

The embodiment of the present application provides a two-box high and low temperature impact test chamber, which relates to the technical field of temperature impact test equipment. A two-box high and low temperature impact test chamber, comprising a base frame, both sides of the top of the base frame are fixedly connected with side covers, and the top of the base frame is respectively fixedly connected with a high temperature box and a low temperature box on one side close to the side cover; an extension frame is embedded in the inner side of the high temperature box and the low temperature box, and the inner cavity of the extension frame is provided with a transfer component for loading and transferring test objects of the high temperature box and the low temperature box; the inner cavity of the side cover is provided with an adjustment component and an impact component for independent impact of the high temperature box and the low temperature box, and the inner side of the side cover is provided with a supply component and a temperature control component for hot and cold temperature control of the high temperature box and the low temperature box. Based on the premise of rapid transportation and convenient observation, a combination of reciprocating lifting impact and hot and cold integrated temperature control is adopted to conduct efficient and accurate temperature shock tests on the test objects.

Description

Technical Field

[0001] The invention belongs to the technical field of temperature shock test equipment, and in particular relates to a two-box high and low temperature shock test box. Background Art

[0002] Thermal shock test, also known as temperature shock test or high and low temperature shock test, is used to assess the adaptability of products to rapid changes in ambient temperature. It is an indispensable test in the identification test of equipment design finalization and the routine test in the batch production stage. It can be used to test the degree to which material structures or composite materials can withstand continuous high and low temperature environments in an instant, so as to test the chemical changes or physical damage caused by thermal expansion and contraction in the shortest time. Applicable objects include metals, plastics, rubber, electrical components, etc.

[0003] In the prior art (the publication number is CN218674493U, and the patent name is a patent application for a two-box hot and cold shock test box). A support frame is provided on the upper surface of the outer box, an electric telescopic rod is provided on the support frame, a partition extending into the outer box is provided on the electric telescopic rod, and a U-shaped frame is provided in the outer box. When in use, the low-temperature box and the high-temperature box can be separated by the partition plate, which can facilitate the transfer of test items while ensuring the sealing between the low-temperature box and the high-temperature box, and prevent interference between the low-temperature box and the high-temperature box. In the process of implementing this technical solution, it is found that there are at least the following problems in the prior art.

[0004] During the temperature shock test of the test object, independent refrigeration equipment and heating equipment are mostly used to supply cold and heat sources to the high and low temperature chambers. Not only is the installation complicated and costly, but the failure rate is also significantly increased, which is not worth the cost. At the same time, the test object cannot be quickly transferred and observed before and after the high and low temperature tests, and the status data of the test object before and after the high and low temperature tests cannot be obtained. Summary of the invention

[0005] The present application aims to at least solve one of the technical problems in the prior art that it is not possible to conduct efficient and accurate temperature shock tests on test objects by combining reciprocating lifting shock and integrated hot and cold temperature control under the premise of rapid transportation and convenient observation, and the cost and failure rate are high, which is time-consuming and labor-intensive. To this end, the present application proposes a two-box high and low temperature shock test chamber.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A two-box high and low temperature impact test box, comprising a bottom frame, both sides of the top of the bottom frame are fixedly connected with side covers, and the top of the bottom frame near the side cover is respectively fixedly connected with a high temperature box and a low temperature box;

[0008] An extension frame is embedded inside the high temperature box and the low temperature box, and tempered glass is embedded on both the front and rear sides of the top of the extension frame and a high temperature observation area and a low temperature observation area are correspondingly arranged. The inner cavity of the extension frame is provided with a transfer assembly for loading and transferring test objects of the high temperature box and the low temperature box, and the transfer assembly includes a double-headed motor fixed between the bottom frame and the extension frame;

[0009] The inner cavity of the side cover is provided with an adjustment component and an impact component for independent impact of the high temperature box and the low temperature box, and the inner side of the side cover is provided with a supply component and a temperature control component for hot and cold temperature control of the high temperature box and the low temperature box.

[0010] Preferably: an output shaft of the double-headed motor is embedded with a first electric push rod, and the piston rod of the first electric push rod is fixedly connected to a locking head, a rotating seat that rotates with the top of the extension frame is provided above the locking head, and a locking groove that engages with the locking head is provided at the center of the bottom of the rotating seat, one side of the rotating seat is fixedly connected to a transfer frame, and both sides of the inner cavity of the transfer frame are fixedly connected to elastic bands, and the inner side of the elastic band is fixedly connected to a positioning frame.

[0011] Preferably: the adjustment component includes an active bevel gear fixed to the other output shaft of the double-headed motor through a coupling, and driven bevel gears are provided on both sides of the active bevel gear, the outer side of the driven bevel gear is fixedly connected to a second electric push rod, and the outer side of the second electric push rod is sleeved with a transverse gear rack that rotates with the base frame, the other end of the transverse gear rack is meshed with a longitudinal gear rack that rotates with the side cover, and the top of the longitudinal gear rack is meshed with a differential bevel gear.

[0012] Preferably: the impact assembly includes a cam fixed to the inner side of the differential bevel gear by a fixing rod, and one end of the cam is slidably connected to a lifting frame, and the centers of the upper and lower sides of the lifting frame are fixedly connected to curved arms that slide with the side cover, and the inner side of the curved arm is fixedly connected to a hollow cylinder, the inner cavity of the hollow cylinder is fixedly connected to a buffer spring, and the inner side of the buffer spring is fixedly connected to a T-rod that slides with the hollow cylinder, and the inner side of the T-rod is fixedly connected to a silicone head that cooperates with the positioning frame.

[0013] Preferably: the supply assembly includes a hot and cold all-in-one machine fixed on the back of the base frame, and the top of the hot and cold all-in-one machine is connected to a three-way joint, both ends of the three-way joint are connected to a delivery hose, and the top of the delivery hose is connected to an air intake end cover, the outer side of the air intake end cover is fixedly connected to a connector fixedly matched with the lifting frame, and the top of the air intake end cover is connected to a telescopic airbag, and the top of the telescopic airbag is connected to an exhaust end cover fixedly matched with the high temperature box and the low temperature box.

[0014] Preferably: the temperature control component includes an exhaust angle tube connected at both ends of the exhaust end cover, and the end of the exhaust angle tube away from the exhaust end cover is connected to a three-way tube, the inner end of the three-way tube is connected to a straight tube, and the other end of the three-way tube is connected to a supply angle tube embedded in a high-temperature box and a low-temperature box, the inner end of the supply angle tube is connected to a flow equalizing rack used in conjunction with a hollow cylinder, and the inner array of the flow equalizing rack is provided with an injection head, and the flow equalizing rack and the injection head are distributed in a symmetrically inclined state toward the silicone head.

[0015] Preferably: an annular slide rail is provided at the center of the bottom of the inner cavity of the extension frame, and one side of the inner cavity of the annular slide rail is rotatably connected to a supporting slide seat fixedly matched with a rotating seat, and the rotating seat is fixedly connected to an angle sensor near the top of the transfer frame.

[0016] Preferably: a transfer opening which is sealed with the transfer rack is opened at the center of the inner side of the high temperature box and the low temperature box, and a high temperature sensor and a low temperature sensor for detecting the temperature of the high temperature box and the low temperature box are respectively embedded on both sides of the transfer rack close to the rotating seat.

[0017] Preferably: the side cover is provided with limit slide grooves vertically on both sides close to the inner cavity of the high temperature box and the low temperature box, and the inner cavity of the limit slide groove is slidably connected with a limit slider fixedly matched with the lifting frame, and the center of the upper and lower sides of the high temperature box and the low temperature box are embedded with sealing sleeves slidably matched with the hollow cylinder.

[0018] Preferably: a temperature and pressure gauge is embedded in the outer end of one group of the three-way pipes, and a bracket is fixedly connected to the center of the top of the extension frame, and a high-temperature detection camera and a low-temperature detection camera cooperating with the high-temperature box and the low-temperature box detection are respectively fixedly connected to the bottom of the bracket, and sealing covers are clamped on the front and rear sides of the extension frame.

[0019] The two-box high and low temperature impact test box of the present invention has the following advantages:

[0020] 1. In the two-box high and low temperature impact test chamber, during the temperature impact test of the test object, the double-head motor first provides a unified driving source, and the first electric push rod adjusts the clamping stroke between the locking head and the locking groove, and then the rotating seat drives the transfer frame to perform horizontal rotation adjustment, and the positioning frames on the two sets of elastic belts position the test object, so that the test object before and after the high temperature and low temperature impact test can be quickly transferred to the high temperature box and the low temperature box and the high and low temperature observation area of ​​the extension frame, so as to achieve rapid transfer and observation effect of the test object before and after the high temperature and low temperature test, and obtain the state data of the test object before and after the high temperature and low temperature test.

[0021] 2. This two-chamber high and low temperature impact test chamber, according to the actual needs of the test, has two sets of second electric push rods to independently adjust the meshing stroke between the two sets of driven bevel gears and the active bevel gears, and then the meshing transmission of the two sets of transverse gear racks and the longitudinal gear racks cooperates to realize the independent differential rotation effect of the two sets of differential bevel gears. At the same time, the differential bevel gears drive the upper and lower sets of bent arms and silicone heads to perform synchronous reciprocating lifting and lowering movements through the cam and the lifting frame. The bent arms are elastically buffered by the hollow cylinder, buffer spring and T-bar, and the two sets of elastic belts play an elastic pulling role on the test object on the positioning frame. The reciprocating lifting and lowering silicone head performs a lifting and impact operation on the test object on the positioning frame transported to the high temperature box or the low temperature box, so that the test object is fully impacted and contacted with the high temperature in the high temperature box or the low temperature in the low temperature box, thereby improving the accuracy of the temperature shock test of the test object.

[0022] 3. This two-box high and low temperature impact test box, at the same time, first provides heat source or cold source supply by the hot and cold integrated machine, and the heat source or cold source is independently transported and supplied by the three-way joint and two sets of delivery hoses, and then the air intake end cover, the telescopic airbag and the exhaust end cover are driven by the connecting piece to perform reciprocating blowing action, and the independently transported heat source or cold source is uniformly and comprehensively transmitted to the test object area in the high temperature box or low temperature box in the lifting and impact state through the exhaust angle pipe, the three-way pipe, the straight pipe, the supply angle pipe and the injection head on the flow equalizing rack in turn, so as to provide independent heat source or cold source supply for the test object in the high temperature box or low temperature box, replace the traditional heating and cooling equipment intervention method, save time and labor, and reduce the cost of temperature impact test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a diagram showing the initial state of a two-box high and low temperature impact test box structure of the present invention;

[0025] Figure 2 It is a partial cross-sectional view of a two-box high and low temperature impact test box structure of the present invention;

[0026] Figure 3 It is a partial internal view of a two-box high and low temperature impact test box structure of the present invention;

[0027] Figure 4 It is a working state diagram of the transport component, the adjustment component, the impact component and the auxiliary component structure of the present invention under low temperature impact;

[0028] Figure 5 It is a partial rear view of the structure of the transport component and the auxiliary component of the present invention;

[0029] Figure 6 A partial bottom view of the transfer component and auxiliary component structure of the present invention;

[0030] Figure 7 It is a partial bottom exploded view of the transfer assembly structure of the present invention;

[0031] Figure 8 A bottom view of the rotating seat and the transfer rack structure of the present invention;

[0032] Fig. 9 It is a front view of the structure of the adjustment component and the impact component of the present invention;

[0033] Fig.10 It is a partial side cross-sectional view of the adjustment assembly and impact assembly structure of the present invention;

[0034] Fig.11 It is a rear view of the supply component and temperature control component structure of the present invention;

[0035] Fig.12 It is a partial bottom view of the supply component and the temperature control component structure of the present invention;

[0036] Fig.13 It is a side cross-sectional view of the lifting frame, connecting piece, air intake end cover, telescopic air bag and exhaust end cover structure of the present invention;

[0037] Fig.14 It is a partial front view of the temperature control component structure of the present invention;

[0038] Fig.15 It is a partial exploded view of the auxiliary component structure of the present invention;

[0039] Fig.16 A top view of the rotating seat and auxiliary component structure of the present invention;

[0040] Fig.17 It is a front view of the chassis, side cover, high temperature box and low temperature box structure of the present invention;

[0041] Fig.18 It is a top view of the high temperature box, low temperature box, extension frame, bracket, high temperature detection camera and low temperature detection camera structure of the present invention.

[0042] Explanation of the markings in the figure: 1. chassis; 2. side cover; 3. high temperature box; 4. low temperature box; 5. extension frame; 6. transfer assembly; 61. double-headed motor; 62. first electric push rod; 63. locking head; 64. rotating seat; 65. locking groove; 66. transfer frame; 67. elastic belt; 68. positioning frame; 7. adjustment assembly; 71. driving bevel gear; 72. driven bevel gear; 73. second electric push rod; 74. horizontal gear frame; 75. longitudinal gear frame; 76. differential bevel gear; 8. impact assembly; 81. cam; 82. lifting frame; 83. bending arm; 84. hollow cylinder; 85. buffer spring; 86. T-bar; 87. silicone head; 9. supply assembly; 91. hot and cold all-in-one machine; 92. three-way joint; 93. delivery hose; 94. connector; 9 5. Inlet end cover; 96. Telescopic airbag; 97. Exhaust end cover; 10. Temperature control component; 101. Exhaust angle pipe; 102. Three-way pipe; 103. Straight pipe; 104. Supply angle pipe; 105. Flow equalizing rack; 106. Injection head; 11. Auxiliary component; 111. Threaded sleeve; 112. Threaded rod; 113. Knob; 114. Positioning head; 115. Ratchet; 116. Ratchet; 117. Limit spring; 12. Annular slide rail; 13. Support slide seat; 14. Angle sensor; 15. Transfer opening; 16. High temperature sensor; 17. Low temperature sensor; 18. Limit slide groove; 19. Limit slider; 20. Sealing sleeve; 21. Temperature and pressure gauge; 22. Bracket; 23. High temperature detection camera; 24. Low temperature detection camera; 25. Sealing cover. DETAILED DESCRIPTION

[0043] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0044] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0047] The disclosure below provides many different embodiments or examples to implement different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present invention. In addition, the embodiments of the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0048] like Figure 1-Figure 18 As shown, a two-box high and low temperature impact test box of the present invention comprises a base frame 1, both sides of the top of the base frame 1 are fixedly connected with side covers 2, and the top of the base frame 1 near the side cover 2 is respectively fixedly connected with a high temperature box 3 and a low temperature box 4, and a mark plate is set above the high temperature box 3 and the low temperature box 4 to prevent confusion;

[0049] An extension frame 5 is embedded in the inner side of the high temperature box 3 and the low temperature box 4, and tempered glass is embedded in the front and rear sides of the top of the extension frame 5 and a high temperature observation area and a low temperature observation area are correspondingly arranged, so that the test object after the high and low temperature impact test can reach the high temperature observation area and the low temperature observation area for manual observation, and a bracket 22 is fixedly connected at the center of the top of the extension frame 5, and a high temperature detection camera 23 and a low temperature detection camera 24 that cooperate with the high temperature box 3 and the low temperature box 4 are fixedly connected at the bottom of the bracket 22, respectively, to take pictures and detect the test object that has reached the high temperature observation area and the low temperature observation area and has undergone the high and low temperature impact test, which is mutually corroborated with manual observation, and a blocking cover plate 25 is clamped on the front and rear sides of the extension frame 5, so that the test object can be loaded and unloaded, and the inner cavity of the extension frame 5 is provided with a transfer component 6 for loading and transferring the test objects of the high temperature box 3 and the low temperature box 4, and the transfer component 6 includes a double-headed motor 61 fixed between the bottom frame 1 and the extension frame 5, so as to facilitate the horizontal multi-directional transfer and observation of the test object;

[0050] The inner cavity of the side cover 2 is provided with an adjustment component 7 and an impact component 8 for independent impact of the high-temperature box 3 and the low-temperature box 4, which perform reciprocating lifting dynamic impact operations on the test object. The inner side of the side cover 2 is provided with a supply component 9 and a temperature control component 10 for hot and cold temperature control of the high-temperature box 3 and the low-temperature box 4. The independent cold source and heat source supply method is adopted to save supply costs and simplify operation.

[0051] like Figure 4-Figure 14 As shown, an output shaft of the double-headed motor 61 is embedded with a first electric push rod 62, and the piston rod of the first electric push rod 62 is fixedly connected to a locking head 63, and a rotating seat 64 that rotates with the top of the extension frame 5 is arranged above the locking head 63, and a locking groove 65 that is engaged with the locking head 63 is opened at the center of the bottom of the rotating seat 64. The double-headed motor 61 first provides a unified driving source, and the first electric push rod 62 adjusts the engagement stroke between the locking head 63 and the locking groove 65. A transfer frame 66 is fixedly connected to one side of the rotating seat 64, and the transfer frame 66 is fixedly connected to the transfer frame 66. Elastic bands 67 are fixedly connected to both sides of the inner cavity of the rack 66, and a positioning frame 68 is fixedly connected to the inner side of the elastic band 67. The rotating seat 64 drives the transfer rack 66 to perform horizontal rotation adjustment, and the positioning frames 68 on the two sets of elastic bands 67 position the test objects, so that the test objects before and after the high-temperature and low-temperature impact tests can be quickly transferred to the high-temperature box 3 and the low-temperature box 4 and the high-temperature and low-temperature observation area of ​​the extension rack 5, so as to achieve rapid transfer and observation effects of the test objects before and after the high-temperature and low-temperature tests, and obtain the state data of the test objects before and after the high-temperature and low-temperature tests;

[0052] An annular slide rail 12 is provided at the center of the bottom of the inner cavity of the extension frame 5, and one side of the inner cavity of the annular slide rail 12 is rotatably connected to a supporting slide seat 13 fixedly matched with the rotating seat 64, which plays a role of rotational support for the rotating seat 64 and improves the rotation stability of the rotating seat 64. The rotating seat 64 is fixedly connected to an angle sensor 14 near the top of the transfer frame 66, which monitors the rotation angle of the rotating seat 64 and the transfer frame 66 in real time. A transfer opening 15 that is blocked with the transfer frame 66 is provided at the center of the inner side of the high-temperature box 3 and the low-temperature box 4, which is conducive to the transfer of the transfer frame 66 to the predetermined positions of the high-temperature box 3 and the low-temperature box 4, and the transfer opening 15 reserved for the high-temperature box 3 and the low-temperature box 4 is blocked and sealed, so that a sealed space is formed between the transfer frame 66 and the high-temperature box 3 and the low-temperature box 4 respectively. A high-temperature sensor 16 and a low-temperature sensor 17 for temperature detection of the high-temperature box 3 and the low-temperature box 4 are respectively embedded on both sides of the transfer frame 66 near the rotating seat 64, which monitor the temperatures in the high-temperature box 3 and the low-temperature box 4 accordingly.

[0053] The adjusting assembly 7 includes an active bevel gear 71 fixed to the other output shaft of the double-headed motor 61 through a coupling, and driven bevel gears 72 are arranged on both sides of the active bevel gear 71, and the outer side of the driven bevel gear 72 is fixedly connected with a second electric push rod 73, and the meshing stroke between the two groups of driven bevel gears 72 and the active bevel gear 71 is independently adjusted by two groups of second electric push rods 73, and the outer side of the second electric push rod 73 is sleeved with a transverse gear frame 74 that rotates with the base frame 1, and the other end of the transverse gear frame 74 is meshed with a longitudinal gear frame 75 that rotates with the side cover 2, and the top of the longitudinal gear frame 75 is meshed with a differential bevel gear 76, and then the meshing transmission of the two groups of transverse gear frames 74 and the longitudinal gear frame 75 is matched to realize the independent differential rotation effect of the two groups of differential bevel gears 76;

[0054] The impact assembly 8 includes a cam 81 fixed to the inner side of the differential bevel gear 76 through a fixing rod, and one end of the cam 81 is slidably connected to a lifting frame 82, and the centers of the upper and lower sides of the lifting frame 82 are fixedly connected to a bent arm 83 that slides with the side cover 2, and the inner side of the bent arm 83 is fixedly connected to a hollow cylinder 84, and the inner cavity of the hollow cylinder 84 is fixedly connected to a buffer spring 85, and the inner side of the buffer spring 85 is fixedly connected to a T-shaped rod 86 that slides with the hollow cylinder 84, and the inner side of the T-shaped rod 86 is fixedly connected to a silicone head 87 used in conjunction with the positioning frame 68. The differential bevel gear 76 is fixedly connected to the inner side of the T-shaped rod 86. The cam 81 and the lifting frame 82 drive the upper and lower groups of curved arms 83 and the silicone head 87 to perform synchronous reciprocating lifting and lowering movements. The curved arm 83 is elastically buffered by the hollow cylinder 84, the buffer spring 85 and the T-bar 86, and the two groups of elastic bands 67 play an elastic pulling role on the test object on the positioning frame 68. The reciprocating lifting and lowering movement of the silicone head 87 performs a lifting and impacting operation on the test object on the positioning frame 68 transported to the high temperature box 3 or the low temperature box 4, so that the test object is fully impacted and contacted with the high temperature in the high temperature box 3 or the low temperature in the low temperature box 4, thereby improving the accuracy of the temperature impact test of the test object.

[0055] Limiting grooves 18 are vertically provided on both sides of the side cover 2 close to the inner cavities of the high-temperature box 3 and the low-temperature box 4, and the inner cavity of the limiting grooves 18 is slidably connected with a limiting slider 19 fixedly matched with the lifting frame 82, which plays a role of sliding support for the lifting frame 82 and improves the stability of the lifting frame 82 during lifting. Sealing sleeves 20 that slide in cooperation with the hollow cylinder 84 are embedded in the centers of the upper and lower sides of the high-temperature box 3 and the low-temperature box 4, which slide in cooperation with the hollow cylinder 84 and utilize the smooth lifting and lowering of the hollow cylinder 84.

[0056] The supply assembly 9 includes a hot and cold integrated machine 91 fixed on the back of the base frame 1, and the top of the hot and cold integrated machine 91 is connected with a three-way joint 92, and both ends of the three-way joint 92 are connected with a delivery hose 93. The hot and cold integrated machine 91 provides a heat source or a cold source supply, and the three-way joint 92 and two groups of delivery hoses 93 independently deliver and supply the heat source or the cold source, and the top of the delivery hose 93 is connected with an air intake end cover 95, and the outer side of the air intake end cover 95 is fixedly connected with a connector 94 fixedly matched with the lifting frame 82, and the top of the air intake end cover 95 is connected with a telescopic air bag 96, and the top of the telescopic air bag 96 is connected with an exhaust end cover 97 fixedly matched with the high temperature box 3 and the low temperature box 4, and the connector 94 drives the air intake end cover 95, the telescopic air bag 96 and the exhaust end cover 97 to perform reciprocating inflation action;

[0057] The temperature control component 10 includes an exhaust angle tube 101 connected to both ends of the exhaust end cover 97, and the end of the exhaust angle tube 101 away from the exhaust end cover 97 is connected to a three-way tube 102, and the outer end of one group of three-way tubes 102 is embedded with a temperature and pressure gauge 21 to detect the temperature and pressure of the cold source or heat source flowing through the three-way tube 102. The inner end of the three-way tube 102 is connected to a straight pipe 103, and the other end of the three-way tube 102 is connected to a supply angle tube 104 embedded with the high temperature box 3 and the low temperature box 4. The inner end of the supply angle tube 104 is connected to a flow equalizing rack 105 used in conjunction with the hollow cylinder 84, and the inner array of the flow equalizing rack 105 is opened. An injection head 106 is provided, and a flow equalizing rack 105 and the injection head 106 are symmetrically inclined toward the silicone head 87. The heat source or cold source independently transported and supplied in the two groups of delivery hoses 93 is uniformly and comprehensively transmitted to the test object area in the high-temperature box 3 or the low-temperature box 4 in a lifting and impacting state through the exhaust angle pipe 101, the three-way pipe 102, the straight pipe 103, the supply angle pipe 104 and the injection head 106 on the flow equalizing rack 105 in sequence, providing an independent heat source or cold source supply for the test object in the high-temperature box 3 or the low-temperature box 4, replacing the traditional heating and cooling equipment intervention method, saving time and labor, and reducing the cost of temperature impact testing.

[0058] like Figure 15-16As shown, during the temperature shock test of the test object, the test object needs to be loaded and transported. During this process, the test object cannot be tightened and loaded and stably transported. The test object is prone to shaking or even reverse rotation during transportation, which affects the subsequent lifting and impact work of the test object. The transport component 6 is provided with an auxiliary component 11, and the auxiliary component 11 includes a threaded sleeve 111 embedded in the front and rear sides of the positioning frame 68. The inner cavity of the threaded sleeve 111 is threadedly connected with a threaded rod 112, and the outer side of the threaded rod 112 is fixedly connected with a knob 113. The inner side of the threaded rod 112 is provided with a positioning head 114 used in conjunction with the positioning frame 68. First, the knob 113 is turned clockwise or counterclockwise, and the positioning head 114 is driven by the threaded rod 112 to tighten the test object placed in the positioning frame 68 for loading and unloading, which is simple and quick.

[0059] A ratchet 115 is fixedly connected to the top of the rotating seat 64, and both sides of the ratchet 115 are clamped with pawls 116 that rotate with the top of the inner cavity of the extension frame 5. The outer side of the pawl 116 away from the ratchet 115 is fixedly connected with a limit spring 117 that fixes with the inner cavity of the extension frame 5. During the rotation of the rotating seat 64, the rotating seat 64 drives the ratchet 115 to rotate synchronously, and the ratchet 115 drives the two groups of pawls 116 to jump teeth on the teeth on its surface. Then, the two groups of limit springs 117 cooperate with the elastic support of the two groups of pawls 116, which plays a reverse limiting role on the ratchet 115, and reversely limits and stably transfers the test objects in the rotating seat 64 and the transfer frame 66, which is beneficial for the test objects to smoothly reach the high temperature box 3 and the low temperature box 4, providing convenience for subsequent impact tests.

[0060] The working principle of a two-box high and low temperature impact test box is as follows: first, open the blocking cover 25 in front of the extension frame 5, and place the test object in the positioning frame 68, and respectively pinch the knob 113 and drive the threaded rod 112 clockwise to move inward in the threaded sleeve 111, and the threaded rod 112 drives the positioning head 114 to tighten the test object placed in the positioning frame 68. After loading, first control the first electric push rod 62 to open and drive the locking head 63 to move up and clamp it in the locking groove 65 at the bottom of the rotating seat 64, and then control the double-headed motor 61 to open and drive the rotating seat 64 to rotate through the locking head 63 that is clamped in place, and the rotating seat 64 drives the test object in the transfer frame 66 to be first transferred to the transfer opening 15 of the low temperature box 4 under the cooperation of the annular slide rail 12 and the support slide 13 to support the rotation of the transfer frame 66. , and the transfer opening 15 of the transfer rack 66 and the low-temperature box 4 after being transferred to the designated position is in a tightly sealed state, and the angle sensor 14 monitors the transfer angle of the rotating seat 64 and the transfer rack 66 in real time, and the rotating seat 64 drives the transfer rack 66 to rotate and transfer, and the rotating seat 64 drives the ratchet 115 to rotate synchronously, and the rotating ratchet 115 drives the two groups of ratchet pawls 116 to jump teeth on their teeth, and the two groups of limit springs 117 provide elastic support and cooperation for the two groups of ratchet pawls 116 that have jumped teeth, and the two groups of ratchet pawls 116 play a reverse restriction measure on the ratchet 115 and the rotating seat 64, so that the test objects in the transfer rack 66 are sequentially transferred from the low-temperature box 4, the low-temperature observation area of ​​the extension rack 5, the high-temperature box 3 and the high-temperature observation area of ​​the extension rack 5 in an orderly manner;

[0061] After the test object in the transfer rack 66 is transferred to the center position in the low temperature box 4, the double-headed motor 61 is first controlled to pause, the first electric push rod 62 is controlled to close and drive the locking head 63 to move down and disengage from the locking groove 65 at the bottom of the rotating seat 64 to the initial state, and then the second electric push rod 73 located at the position of the low temperature box 4 is controlled to open and drive the driven bevel gear 72 to be stuck inward to the meshing part of the active bevel gear 71, and after the second electric push rod 73 located at the position of the high temperature box 3 is in the initial closed state, the double-headed motor 61 is controlled to open again and drive the driven bevel gear 72 to rotate through the engaged active bevel gear 71. At this time, the locking head 63 on the first electric push rod 62 is in an idling state, and the driven bevel gear 72 drives the transverse gear rack 74 located at the position of the low temperature box 4 to rotate accordingly, and the transverse gear rack 74 drives the differential bevel gear 76 located at the position of the low temperature box 4 to rotate accordingly through the longitudinal gear rack 75. The differential bevel gear 76 drives the cam 81 to rotate accordingly, and the limiting slide groove 18 and the limiting slider 19 play a sliding limit role on the lifting frame 82. The cam 81 drives the lifting frame 82 to perform a reciprocating lifting action. The lifting frame 82 drives the two sets of curved arms 83 located at the position of the low-temperature box 4 to perform reciprocating lifting and lowering movements. The two sets of curved arms 83 drive the two sets of hollow cylinders 84 to perform reciprocating lifting and lowering movements in the two sets of sealing sleeves 20 on the low-temperature box 4. The two sets of elastic bands 67 play an elastic pulling role on the test objects in the positioning frame 68. The two sets of hollow cylinders 84 that reciprocate and lift drive the silicone heads 87 on the two sets of T-shaped rods 86 to perform lifting and lowering movements on the test objects in the positioning frame 68 that have been transported to the low-temperature box 4 and in place. At the same time, the two sets of buffer springs 85 play an elastic buffer role on the silicone heads 87 on the two sets of T-shaped rods 86, so as to prevent the silicone heads 87 in the reciprocating lifting and lowering state from causing contact damage to the test objects;

[0062] At the same time, the cold and hot integrated machine 91 is controlled to open in advance and delivers the cold source to the delivery hose 93 located at the low temperature box 4 through the three-way joint 92. At the same time, the cam 81 located at the low temperature box 4 drives the lifting frame 82 to perform reciprocating lifting and lowering movements. The lifting frame 82 drives the air inlet end cover 95 to perform reciprocating lifting and lowering movements through the connecting piece 94. The air inlet end cover 95 drives the telescopic airbag 96 to perform reciprocating telescopic work in the exhaust end cover 97 fixed to the low temperature box 4. When the lifting frame 82 drives the air inlet end cover 95 through the connecting piece 94, the air inlet end cover 95 drives the telescopic airbag 96 to perform reciprocating telescopic work in the exhaust end cover 97 fixed to the low temperature box 4. When the cover 95 moves downward, the air inlet end cover 95 drives the telescopic airbag 96 to stretch and reset downward and is in a return suction state, controlling the valve on the delivery hose 93 located at the position of the low-temperature box 4 to open, and the valves on the exhaust angle pipes 101 at both ends of the exhaust end cover 97 to close, then the negative pressure suction force generated in the stretched and reset telescopic airbag 96 sucks the cold source transported in the delivery hose 93 located at the position of the low-temperature box 4, and when the lifting frame 82 drives the air inlet end cover 95 to move upward through the connecting piece 94, the air inlet end cover 95 drives the telescopic airbag 96 to move upward, and the air inlet end cover 95 drives the telescopic airbag 96 to move upward. The bag 96 is compressed upward and is in the process exhaust state. On the contrary, the cold source sucked into the telescopic air bag 96 is supplied to the two sets of three-way pipes 102 and the straight pipe 103 through the exhaust angle pipes 101 with both ends of the exhaust end cover 97 opened, and the temperature and pressure in the two sets of three-way pipes 102 at the position of the low-temperature box 4 are monitored in real time by two sets of temperature and pressure gauges 21. The cold source in the two sets of three-way pipes 102 is then conducted to the low-temperature box by two sets of supply angle pipes 104 through two sets of injection heads 106 symmetrically inclined on the flow equalizing racks 105. 4, the cold source is evenly and comprehensively distributed in the test object area in the transfer rack 66 transferred to the low temperature box 4, and the low temperature sensor 17 on the transfer rack 66 after being transferred to the low temperature box 4 monitors the temperature in the low temperature box 4 in real time. When the temperature in the low temperature box 4 reaches the range of the low temperature sensor 17, the silicone head 87 is combined to perform a reciprocating lifting impact action on the test object in the transfer rack 66 after being transferred to the low temperature box 4. When the predetermined test time is reached, the impact test of the test object in the low temperature environment is completed;

[0063] After the test objects in the transfer rack 66 in the low-temperature box 4 are transferred to the right place, the impact test under the low-temperature environment is completed. Similarly, the transfer rack 66 is controlled to separate from the transfer opening 15 of the low-temperature box 4 and is orderly transferred to the low-temperature observation area of ​​the extension rack 5. The low-temperature detection camera 24 on one side of the bracket 22 is used to quickly detect the test objects that have been impacted by the low temperature after being transferred to the right place through the tempered glass of the low-temperature observation area of ​​the extension rack 5. The transfer rack 66 is immediately controlled to separate from the low-temperature observation area of ​​the extension rack 5 to the transfer opening 15 of the high-temperature box 3, and the transfer opening 15 of the high-temperature box 3 is blocked. The double-headed motor 61 is first controlled to pause, and then the first electric pusher is controlled in sequence. The rod 62 and the second electric push rod 73 located at the low temperature box 4 are closed, and then the second electric push rod 73 located at the high temperature box 3 and the double-headed motor 61 are controlled to be opened successively. Similarly, before the silicone head 87 is controlled to perform a reciprocating lifting impact action on the test object in the transfer rack 66 after being transferred to the high temperature box 3, the hot and cold integrated machine 91 is controlled to be opened and the heat source is transported to the delivery hose 93 located at the low temperature box 4 through the three-way joint 92, and then the heat source is transmitted to the high temperature box 3 through the two groups of injection heads 106 symmetrically inclined on the flow equalizing racks 105 in turn, and the heat source is evenly and comprehensively distributed in the test area in the transfer rack 66 transferred to the high temperature box 3. , and the temperature in the enclosed space is monitored in real time by the high temperature sensor 16 on the transfer rack 66 transferred to the high temperature box 3. When the temperature in the high temperature box 3 reaches the range of the high temperature sensor 16, the silicone head 87 is combined to perform a reciprocating lifting impact action on the test object in the transfer rack 66 after being transferred to the high temperature box 3. After the predetermined test time is reached, that is, after the impact test of the test object in the high temperature environment is completed, the transfer rack 66 is controlled to separate from the transfer opening 15 of the high temperature box 3 and orderly transferred to the high temperature observation area of ​​the extension rack 5, and the high temperature detection camera 23 on the other side of the bracket 22 is used to monitor the transfer through the tempered glass of the high temperature observation area of ​​the extension rack 5. After being in place, the test object that has undergone low-temperature and high-temperature thermal shocks is quickly inspected on the screen, and the state of the test object after the low-temperature and high-temperature thermal shocks can also be observed manually through the tempered glass of the low-temperature and high-temperature observation areas of the extension frame 5. After the test object completes the high and low-temperature shock tests, the transfer rack 66 will also transfer the test object that has undergone the high and low-temperature shock tests to the initial position. First, reopen the blocking cover 25, then pinch the knob 113 and drive the threaded rod 112 to move outward in the threaded sleeve 111 counterclockwise, and the threaded rod 112 drives the positioning head 114 to release and remove the test object that has completed the high and low-temperature shock tests placed in the positioning rack 68.

[0064] It should be noted that the specific models and specifications of the double-headed motor 61, the first electric push rod 62, the second electric push rod 73 and the hot and cold integrated machine 91 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0065] The power supply circuits of the double-headed motor 61, the first electric push rod 62, the second electric push rod 73 and the cold and hot integrated machine 91 are clear to those skilled in the art and will not be described in detail here.

[0066] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A two-chamber high and low temperature impact test chamber, comprising a base frame (1), characterized in that: Both sides of the top of the base frame (1) are fixedly connected to side covers (2), and a high temperature box (3) and a low temperature box (4) are respectively fixedly connected to one side of the top of the base frame (1) close to the side covers (2); An extension frame (5) is embedded inside the high temperature box (3) and the low temperature box (4), and tempered glass is embedded on both the front and rear sides of the top of the extension frame (5) and a high temperature observation area and a low temperature observation area are correspondingly provided. The inner cavity of the extension frame (5) is provided with a transfer assembly (6) for loading and transferring test objects of the high temperature box (3) and the low temperature box (4), and the transfer assembly (6) includes a double-headed motor (61) fixed between the bottom frame (1) and the extension frame (5), and an output shaft of the double-headed motor (61) is embedded with a first electric push rod (62) ), and the piston rod of the first electric push rod (62) is fixedly connected to a locking head (63), a rotating seat (64) rotating with the top of the extension frame (5) is arranged above the locking head (63), and a locking groove (65) engaging with the locking head (63) is provided at the center of the bottom of the rotating seat (64), one side of the rotating seat (64) is fixedly connected to a transfer frame (66), and both sides of the inner cavity of the transfer frame (66) are fixedly connected to elastic bands (67), and the inner side of the elastic band (67) is fixedly connected to a positioning frame (68); The inner cavity of the side cover (2) is provided with an adjustment component (7) and an impact component (8) for independently impacting the high temperature box (3) and the low temperature box (4); the adjustment component (7) comprises an active bevel gear (71) fixed to the other output shaft of the double-headed motor (61) through a coupling, and driven bevel gears (72) are provided on both sides of the active bevel gear (71); a second electric push rod (73) is fixedly connected to the outer side of the driven bevel gear (72), and a transverse gear frame (74) that is rotatably matched with the base frame (1) is sleeved on the outer side of the second electric push rod (73); the other end of the transverse gear frame (74) is meshed with a longitudinal gear frame (75) that is rotatably matched with the side cover (2), and the top of the longitudinal gear frame (75) is The impact assembly (8) comprises a cam (81) fixed to the inner side of the differential bevel gear (76) by a fixing rod, and one end of the cam (81) is slidably connected to a lifting frame (82), and the lifting frame (82) is fixedly connected to the center of both upper and lower sides of the lifting frame (82) with a bent arm (83) that is slidably matched with the side cover (2), and the inner side of the bent arm (83) is fixedly connected to a hollow cylinder (84), the inner cavity of the hollow cylinder (84) is fixedly connected to a buffer spring (85), and the inner side of the buffer spring (85) is fixedly connected to a T-shaped rod (86) that is slidably matched with the hollow cylinder (84), and the inner side of the T-shaped rod (86) is fixedly connected to a silicone head (87) that is used in conjunction with the positioning frame (68); A supply assembly (9) and a temperature control assembly (10) for controlling the hot and cold temperatures of the high temperature box (3) and the low temperature box (4) are arranged on the inner side of the side cover (2); the supply assembly (9) comprises a hot and cold integrated machine (91) fixed on the back of the base frame (1); the top of the hot and cold integrated machine (91) is connected to a three-way joint (92); both ends of the three-way joint (92) are connected to a delivery hose (93); the top of the delivery hose (93) is connected to an air intake end cover (95); the outer side of the air intake end cover (95) is fixedly connected to a connecting piece (94) fixedly matched with the lifting frame (82); the top of the air intake end cover (95) is connected to a telescopic airbag (96); the top of the telescopic airbag (96) is connected to a connecting piece (94) fixedly matched with the high temperature box (3) and the low temperature box (4). The temperature control component (10) comprises an exhaust angle tube (101) connected to both ends of the exhaust end cover (97), and one end of the exhaust angle tube (101) away from the exhaust end cover (97) is connected to a three-way tube (102), the inner end of the three-way tube (102) is connected to a straight tube (103), and the other end of the three-way tube (102) is connected to a supply angle tube (104) embedded in and matched with a high temperature box (3) and a low temperature box (4), the inner end of the supply angle tube (104) is connected to a flow balancing rack (105) used in combination with a hollow cylinder (84), and an injection head (106) is arranged in an array on the inner side of the flow balancing rack (105), and the flow balancing rack (105) and the injection head (106) are distributed in a symmetrically inclined state toward the silicone head (87).

2. The two-chamber high and low temperature impact test chamber according to claim 1 is characterized in that: An annular slide rail (12) is provided at the center of the bottom of the inner cavity of the extension frame (5), and a support slide seat (13) fixedly matched with the rotating seat (64) is rotatably connected to one side of the inner cavity of the annular slide rail (12), and an angle sensor (14) is fixedly connected to the top of the rotating seat (64) near the transfer frame (66).

3. The two-chamber high and low temperature impact test chamber according to claim 2 is characterized in that: A transfer opening (15) which is sealed with the transfer rack (66) is provided at the center of the inner side of the high temperature box (3) and the low temperature box (4), and a high temperature sensor (16) and a low temperature sensor (17) for detecting the temperature of the high temperature box (3) and the low temperature box (4) are respectively embedded on both sides of the transfer rack (66) close to the rotating seat (64).

4. The two-chamber high and low temperature impact test chamber according to claim 3 is characterized in that: The side cover (2) is provided with limit slide grooves (18) vertically disposed on both sides of the inner cavity of the high temperature box (3) and the low temperature box (4), and the inner cavity of the limit slide groove (18) is slidably connected to a limit slider (19) fixedly matched with the lifting frame (82), and the center of the upper and lower sides of the high temperature box (3) and the low temperature box (4) are embedded with sealing sleeves (20) slidably matched with the hollow cylinder (84).

5. The two-chamber high and low temperature impact test chamber according to claim 4 is characterized in that: A temperature and pressure gauge (21) is embedded in the outer end of one group of the three-way pipes (102), and a bracket (22) is fixedly connected to the center of the top of the extension frame (5), and a high-temperature detection camera (23) and a low-temperature detection camera (24) that cooperate with the high-temperature box (3) and the low-temperature box (4) for detection are fixedly connected to the bottom of the bracket (22), respectively, and a blocking cover plate (25) is clamped on both the front and rear sides of the extension frame (5).

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