CN205049304U - Many combined environment test system proof test case - Google Patents

Abstract

A test box for a multi-comprehensive environmental test system, including a box body, the bottom of the box body is provided with a bottom plate, and it is characterized in that: an outer support frame is provided outside the box body, and a translation track is provided below the box body; There is a plate changing device for replacing the bottom plate; a pressing mechanism for pressing the bottom plate is provided at the bottom of the box body; a lifting mechanism for lifting and lowering the box body is provided between the box body and the outer support frame; the pressing mechanism consists of at least two Sleeve pressing device; the lifting mechanism includes a rotating drive mechanism, four screw rods, four sets of worm gear mechanisms, the first transmission rod, the second transmission rod, the third transmission rod, the fourth transmission rod, and three-axis spiral bevel gear steering device, the first two-axis helical bevel gear steering unit and the second two-axis helical bevel gear steering unit. The test box of the utility model can complete the automatic replacement of the bottom plate without human assistance, can improve the test efficiency to the greatest extent, and prevent unpredictable safety hazards.

Description

A test chamber for a multi-comprehensive environmental test system

technical field

The utility model relates to the field of environmental test equipment, in particular to a test box for a multi-comprehensive environmental test system. The so-called multi-comprehensive environmental test refers to the combination of at least two environments in various environments such as vibration, temperature, humidity and air pressure to form a test environment.

Background technique

The multi-comprehensive environmental test system simulates the natural environment (such as vibration, temperature, humidity and air pressure) within an effective space range, and then detects various performance indicators of the test piece. The multi-comprehensive environmental test system is widely used in aerospace Products, information electronic instrumentation, materials, electrical engineering, various electronic components and other related fields. The multi-integrated environmental test system includes multiple parts such as vibration, temperature, humidity, and pressure. For example, the test environment of the three-integrated environmental test system is often a combination of vibration, temperature, and humidity. These test environment combinations are applied to the test piece to complete the test. related assessments. Generally, the test piece can only be tested for temperature and humidity in the test chamber of the multi-comprehensive environmental test system. When performing the vibration test, the test chamber needs to be placed on the vibration table for horizontal or vertical vibration. The existing multi-comprehensive environmental test system has a test box with a frame structure. The test piece is installed in the inner space of the test box. The top and side of the test box are respectively closed by the cover plate and the side plate. At the bottom of the box, different types of bottom plates are selected according to different environmental stress tests to finally close the test box. For example, in the three-integrated environmental test system, when performing temperature and humidity tests, the bottom of the test box is closed by a blind plate without openings; At the bottom, install the test box on the vibrating table. The size of the vibrating table top matches the opening of the bottom plate. That is to say, when the vibration test is performed, the vibrating table and the bottom plate with openings close the bottom of the test box. However, at present, the bottom plates used in the test chambers of various specifications of the three comprehensive test systems of various manufacturers are replaced by traditional manual installation methods that are time-consuming, laborious and clumsy. The test efficiency is low, and there are unpredictable safety hazards.

Contents of the invention

The utility model provides a test box for a multi-comprehensive environmental test system, which aims to solve the problems that the current test box for a multi-comprehensive environmental test system is inconvenient to replace the bottom plate during the environmental test, a large amount of manpower is required, and the test box cannot be automatically lifted. question. The test box for multi-comprehensive environmental test system of the utility model can complete the automatic replacement of the bottom plate without human assistance during use, can improve the test efficiency to the greatest extent, and prevent unpredictable safety hazards.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a test box for a multi-comprehensive environmental test system, including a box body used to simulate the climate environment within the effective space range, and the bottom of the box body is provided with a replaceable The bottom plate of the box body is provided with an outer support frame outside the box body, and a translation track is provided below the box body. The box body is seated on the outer support frame, and the outer support frame is moved and supported on the translation track; A pressing mechanism for pressing the bottom plate is provided at the bottom of the box; a lifting mechanism for lifting the box is provided between the box body and the outer support frame;

The lifting mechanism includes a rotary drive mechanism, four screw rods, four groups of worm gear mechanisms, a first transmission rod, a second transmission rod, a third transmission rod, a fourth transmission rod, a three-axis spiral bevel gear steering gear, a first A two-axis helical bevel gear steering gear and a second two-axis helical bevel gear steering gear; the four screw rods are vertically arranged and distributed at the four corners of the box body, and the box body is simultaneously supported by the four screw rods Above, the four groups of worm gear and worm mechanisms are all composed of worm gears and worm meshes. The center of the worm gears is provided with an internally threaded hole. Each group of worm gear and worm mechanisms is matched with a screw, wherein the internally threaded holes of the worm gear are set outside the screw. and cooperate with the screw; the rotary drive mechanism is a reduction motor or a hand crank, the output shaft of the rotary drive mechanism is connected to the input transmission of the three-axis spiral bevel gear steering gear, and the three-axis spiral bevel gear The output shaft at one end of the steering gear is in transmission connection with one end of the first transmission rod, and the other end of the first transmission rod is in transmission connection with the input shaft of the first two-axis helical bevel gear steering gear. The output shaft of the bevel gear steering gear is in transmission connection with one end of the third transmission rod; the other end output shaft of the three-axis helical bevel gear steering device is in transmission connection with one end of the second transmission rod, and the second transmission rod The other end of the rod is in drive connection with the input shaft of the second two-axis helical bevel gear steering gear, and the output shaft of the second two-axis helical bevel gear steering gear is in drive connection with one end of the fourth transmission rod; the third The transmission rod is connected with the worms of the two groups of worm and gear mechanisms, and the fourth transmission rod is connected with the worms of the other two groups of the worm and gear mechanisms; The steering gear, the first two-axis helical bevel gear steering gear and the second two-axis helical bevel gear steering gear are all mounted on the outer support frame.

The relevant content in the above-mentioned technical scheme is explained as follows:

1. Among the above solutions, the preferred solution is that multiple sets of the plate changing mechanism are placed on one side of the bottom of the box, and arranged in layers in the vertical direction; or, multiple sets of the plate changing mechanism are placed on both sides of the bottom of the box. side; or, multiple sets of the plate changing mechanism are arranged on three sides of the bottom of the box body.

2. In the above scheme, the preferred scheme is that the primary guide rail is composed of a main guide rail, an auxiliary guide rail and a fourth linear drive mechanism, the main guide rail is positioned or fixedly connected to the outer support frame, and one end of the auxiliary guide rail is connected to the main guide rail. One end of the hinge is hinged. In the initial state, both the auxiliary guide rail and the main guide rail are in a folded state. The fourth linear drive mechanism can drive the auxiliary guide rail to extend and make the extended auxiliary guide rail and the main guide rail in the same straight line. . In addition, the number of the primary guide rail and the secondary guide rail can be one or two, and those skilled in the art can choose according to their actual needs.

3. Among the above solutions, the preferred solution is that a guide mechanism is provided between the outer support frame and the box body, and the guide mechanism is composed of a plurality of box body guide wheels, and the box body guide wheels are fixed on the outer The support frame is slidably connected with the outer surface of the box body.

4. In the above solution, a preferred solution is that the four screw rods are distributed at the four corners of the bottom of the box, or the four screw rods are distributed at the four corners of the top of the box.

5. In the above solution, the base plate is a blind plate, a vertical transition base plate or a horizontal transition base plate. The blind plate is a plate without an opening. The blind plate is suitable for a test box that only performs temperature and humidity tests, and it can directly completely seal the box body; an opening is provided in the middle of the vertical transition bottom plate for vertical A test box for a vibration test; the horizontal transition base plate is provided with an opening and the center point of the opening deviates from the center point of the horizontal transition base plate, and is used for a test box for a horizontal vibration test. Of course, further improvements can be made to the horizontal transition floor. The preferred solution is that the test box also includes a gap sealing mechanism, which includes a blocking plate and a fifth linear drive mechanism; a gap is provided on the side wall of the box body, and the shape and size of the gap are are all matched with the shape and size of the blocking plate, and the blocking plate is arranged at the gap and can close the gap; as required, a first opening is provided on the main body of the horizontal transition floor, and the main body One side edge of the part is arched upwards, and an arch section capable of avoiding the power output shaft of the horizontal vibrating table is provided. The arch section is provided with a second opening, and the first opening communicates with the second opening. The arch The shape of the starting section is the same as the shape of the notch; when the bottom plate is installed for the horizontal vibration test, the fifth linear drive mechanism can drive the sealing plate to open, and then the horizontal transition bottom plate is installed on the At the bottom of the box, at this time, the arched section is located at the gap and the arched section and the power output shaft of the horizontal vibrating table close the gap.

6. Among the above solutions, the preferred solution is that the outer support frame is provided with an auxiliary control mechanism, the auxiliary control mechanism includes a limit controller and an electrical circuit, and the limit controller is a travel switch or a photoelectric distance sensor. The auxiliary control mechanism can control the rising or falling height of the box body according to the extended position of the bottom plate telescopic mechanism.

7. In the above solution, the first linear drive mechanism, the second linear drive mechanism, the third linear drive mechanism, the fourth linear drive mechanism, and the fifth linear drive mechanism can use motors, air cylinders or hydraulic cylinders.

8. In the above scheme, the box generally has a unit, that is, a unit that can provide air pressure, temperature or humidity for the simulated environment, such as a refrigeration unit, and the unit can be installed inside or outside the box.

9. In the above solution, the fulcrum of the briquetting block is hinged at the bottom of the box, and can also be articulated on the side of the box; if the fulcrum of rotation is hinged on the side of the box, the briquetting block is in the shape of a hook.

10. Among the above solutions, the preferred solution is to provide a plate changing device for changing the bottom plate on the side of the bottom of the box; the plate changing device is composed of at least one set of plate changing mechanisms, each set of plate changing mechanisms It is placed on the side of the bottom of the box; each set of board changing mechanism has a first-level guide rail, a first-level bracket, a second-level bracket, a first-level bracket driving mechanism and a second-level bracket driving mechanism; the first-level guide rail is a A moving guide support structure, the first-level guide rail is positioned or fixedly connected to the outer support frame, the first-level bracket is a plate or frame structure used to support the bottom plate, and the first-level bracket is located on the On the first-level guide rail and relative to the first-level guide rail, the driving mechanism of the first-level bracket is the first linear drive mechanism and is arranged between the first-level guide rail and the first-level bracket, and is used to drive the first-level bracket along the first-level The direction of the guide rail moves telescopically; the first-level bracket is equipped with a second-level guide rail, and the second-level bracket is a plate or frame structure for supporting the bottom plate. The second-level bracket is located on the second side of the first-level bracket. The first-level guide rail is moved and connected to the second-level guide rail. The second-level bracket drive mechanism is the second linear drive mechanism and is set between the first-level bracket and the second-level bracket to drive the second-level bracket along the second-level guide rail. Telescopic movement in one direction; a seat for supporting the bottom plate is provided on the secondary bracket;

Furthermore, multiple sets of the plate changing mechanism are arranged on one side of the bottom of the box body, and are arranged in layers in the vertical direction; or, multiple sets of the plate changing mechanism are placed on both sides of the bottom of the box body; or, multiple sets of the plate changing mechanism The plate changing mechanism is arranged on three sides of the bottom of the box body.

The primary guide rail is composed of a main guide rail, an auxiliary guide rail and a fourth linear drive mechanism. The main guide rail is positioned or fixedly connected to the outer support frame. One end of the auxiliary guide rail is hinged to one end of the main guide rail. In the initial state, the Both the auxiliary guide rail and the main guide rail are in a folded state, and the fourth linear drive mechanism can drive the auxiliary guide rail to extend and make the extended auxiliary guide rail and the main guide rail in the same straight line. In addition, the number of the primary guide rail and the secondary guide rail can be one or two, and those skilled in the art can choose according to their actual needs.

The mobile connection may be a sliding connection or a rolling connection.

The design features of the utility model are: the multi-comprehensive environmental test system test box of the utility model can be equipped with different bottom plates according to different test requirements. In the actual test, the bottom plate must be constantly replaced to meet the needs of different test tasks. For example, when only temperature and humidity tests are performed, the test box body needs to be closed with a blind plate. During the test, the body of the test chamber needs to be closed with a vertical transition bottom plate. When carrying out the three comprehensive tests of temperature, humidity and horizontal vibration, the body of the test box needs to be closed with a horizontal transition bottom plate. However, due to factors such as weight and size, disassembly and assembly of various bottom plates is time-consuming and laborious, and requires human participation, which is extremely inconvenient, and there are certain unpredictable safety hazards. In consideration of the above factors, the utility model adopts an integrated design concept, simulates and optimizes the manual replacement operation process, and adopts the method of human intervention control at key points, so as to realize the automatic operation of the whole process of the replacement of the bottom plate under human control, thereby improving the replacement process. Board efficiency to ensure safe and reliable operation process. The various technologies adopted in the utility model are mature technologies nowadays, and various mature technologies are integrated, the overall structure is novel, easy to realize, and suitable for large-scale popularization and application.

Due to the application of the above-mentioned technical solutions, the utility model has the following advantages and effects compared with the prior art:

1. The bottom plates of the existing multi-comprehensive test system test chambers are all configured separately, and the temporarily unused bottom plates are temporarily shelved in open space. In the utility model, various bottom plates and their supporting structures adopt an integrated design, and form a complete set of equipment with the test system, which effectively utilizes the internal space of the test system itself, reduces the land occupation of the whole system, and improves the utilization rate of the test site.

2. The replacement of various bottom plates in the test chambers of the existing multi-comprehensive test system adopts the methods of manual handling installation, driving and lifting human-assisted installation or mobile trolley handling and human-assisted installation. The replacement of the bottom plate in the utility model can realize that the whole process does not require manpower to carry and install, the operation steps are greatly simplified, the non-test time is greatly reduced, and the test efficiency is improved.

3. In the existing multi-comprehensive test system, the replacement process of the bottom plate of the test box is relatively manual, and there are many unpredictable safety hazards. The utility model can realize the automation of the whole process of base plate replacement under human control, and fundamentally eliminate many unpredictable safety hazards.

4. The existing multi-comprehensive test system has a traditional overall supporting system, and the economic benefits are average. The utility model integrates the bottom plate replacement device with the original test system, and the test box can automatically lift and cooperate to complete the replacement of the bottom plate, realizing the integration of the test system, and can realize semi-automatic or full-automatic operation on this basis, and has good economic benefits and market prospects.

5. One side edge of the horizontal transition bottom plate of the test box of the present utility model is arched upwards, and an arched section capable of avoiding the horizontal power output shaft of the vibrating table is provided. When performing a horizontal vibration test, the sealing plate of the gap sealing mechanism Open, part of the horizontal PTO shaft of the vibrating table can be placed in the gap, so that when the horizontal transition floor is installed, the arched section can completely fill the gap between the horizontal PTO shaft and the gap, and then make the test chamber The box is completely airtight. That is to say, such a design can not only avoid the collision between the test box body and the power output shaft of the vibration table, but also ensure that the bottom of the box body is completely sealed, ensuring the accuracy of the test results and the safety of the work.

6. The lifting mechanism of the test box of the present invention can ensure the stable rise or fall of the test box during operation, and the synchronization is good.

Description of drawings

Accompanying drawing 1 is the first three-dimensional structure schematic diagram of the utility model test box;

Accompanying drawing 2 is the structural representation of the utility model test box;

Accompanying drawing 3 is the second three-dimensional structure schematic diagram of the utility model test box;

Accompanying drawing 4 is the schematic diagram of the three-dimensional structure of the plate changing mechanism in the unextended state in the test chamber of the present invention;

Accompanying drawing 5 is the front view of the plate changing mechanism in the extended state in the test chamber of the present invention;

Accompanying drawing 6 is the top view of the plate changing mechanism in the extended state in the test chamber of the present invention;

Accompanying drawing 7 is the three-dimensional view of the plate changing mechanism in the extended state in the test chamber of the present invention;

Accompanying drawing 8 is the schematic structural view of the board changing mechanism in the extended state in the test chamber of the present invention;

Accompanying drawing 9 is the structural representation of lifting mechanism in the utility model test box;

Accompanying drawing 10 is the structural representation that lifting mechanism is fixed on the outer support frame in the utility model test box;

Accompanying drawing 11 is the schematic diagram of pressing mechanism in the utility model test box;

Accompanying drawing 12 is the structural representation of blind plate in the utility model test box;

Accompanying drawing 13 is the structural representation of vertical transition bottom plate in the utility model test box;

Accompanying drawing 14 is the structural representation of the horizontal transition floor in the utility model test box.

In the above drawings: 1. Box body; 2. Outer support frame; 3. Translating guide rail; 4. Compression mechanism; 5. Briquetting block; 6. Board changing mechanism; Frame driving mechanism; 9, secondary bracket; 10, secondary bracket driving mechanism; 11, bottom plate; 12, main rail; 13, auxiliary guide rail; 14, fourth linear driving mechanism; 15, rotary driving mechanism; Screw rod; 17, worm gear mechanism; 18, first transmission rod; 19, second transmission rod; 20, third transmission rod; 21, fourth transmission rod; 22, three-axis spiral bevel gear steering device; 23, the first 1st two-axis spiral bevel gear steering gear; 24. Second two-axis spiral bevel gear steering gear; 25. Box guide wheel; 26. Blocking plate; 27. Fifth linear drive mechanism; 28. Blind plate; 29. Horizontal Transition bottom plate; 30, vertical transition bottom plate; 31, arched section; 32, auxiliary control mechanism; 33, third linear drive mechanism.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment: a kind of test box for multi-comprehensive environmental test system

Referring to accompanying drawings 1 to shown in accompanying drawing 14, described test box comprises a box body 1 that is used for simulating climate environment within the scope of effective space, and the bottom of this box body 1 is provided with replaceable bottom plate 11; The outside of the body 1 is provided with an outer support frame 2, and a translation track 3 is provided below the box body 1. The box body 1 is seated on the outer support frame 2, and the outer support frame 2 is moved and supported on the translation track 3; The bottom side of the box body 1 is provided with a plate changing device for replacing the bottom plate 11; a pressing mechanism 4 for pressing the bottom plate 11 is provided at the bottom of the box body 1; A lifting mechanism for lifting the box body 1 is provided;

The plate changing device is composed of three sets of plate changing mechanisms 6, and each set of plate changing mechanisms 6 is arranged on one side of the bottom of the box body 1 and arranged in layers in the vertical direction; each set of plate changing mechanisms 6 has a first-level guide rail, a Level bracket 7, level two bracket 9, level one bracket drive mechanism 8 and level two bracket drive mechanism 10; Described level one guide rail is a guiding support structure for moving, and level one level guide rail is relative to outer support frame 2 Positioning or fixed connection, the primary bracket 7 is a first-level board or frame structure for supporting the bottom plate 11, the primary bracket 7 is seated on the primary guide rail and opposite to the primary guide rail Mobile connection, the first-level bracket drive mechanism 8 is the first linear drive mechanism and is arranged between the first-level guide rail and the first-level bracket 7, and is used to drive the first-level bracket 7 to telescopically move along the direction of the first-level guide rail; The bracket 7 is provided with a secondary guide rail, the secondary bracket 9 is a plate or frame structure used to support the bottom plate 11 at the second level, and the secondary bracket 9 is located on the secondary guide rail of the primary bracket 7 Above and relative to the secondary guide rail mobile connection, the secondary bracket drive mechanism 10 is the second linear drive mechanism and is arranged between the primary bracket 7 and the secondary bracket 9, and is used to drive the secondary bracket 9 along the second The direction of the first-level guide rail telescopically moves; the second-level bracket 9 is provided with a seat for supporting the bottom plate 11; the bottom plates 11 carried on the three sets of plate-changing mechanisms 6 are respectively blind plates 28, vertical transitional bottom plates 30 and horizontal transitional bottom plates 29;

The primary guide rail is composed of a main guide rail 12, a secondary guide rail 13 and a fourth linear drive mechanism 14, the main guide rail 12 is positioned or fixedly connected to the outer support frame 2, and one end of the secondary guide rail 13 is hinged to one end of the main guide rail 12. In the initial state, both the auxiliary guide rail 13 and the main guide rail 12 are in a folded state, and the fourth linear drive mechanism 14 can drive the auxiliary guide rail 13 to extend and make the extended auxiliary guide rail 13 and the main guide rail 12 at the same time. a straight line;

The pressing mechanism 4 is composed of at least two sets of pressing devices, each set of pressing devices is composed of a pressing block 5 and a third linear drive mechanism 33, and the pressing block 5 has a pivot point, a pressing point and a pushing point, the fulcrum of the briquetting block 5 is hinged on the box body 1, the driving end of the third linear drive mechanism 33 acts on the pushing point of the briquetting block 5, and the pressing point of the briquetting block 5 acts on the bottom of the bottom plate 11; The tightening device is distributed on the position where the bottom plate 11 needs to be tightened;

The lifting mechanism includes a rotary drive mechanism 15, four screw rods 16, four groups of worm and gear mechanisms 17, a first transmission rod 18, a second transmission rod 19, a third transmission rod 20, a fourth transmission rod 21, a three-axis screw The bevel gear steering gear 22, the first two-axis spiral bevel gear steering gear 23 and the second two-axis spiral bevel gear steering gear 24; the four screw rods 16 are vertically arranged and distributed at the four corners of the bottom of the box body 1 Above, the box body 1 is supported on the tops of the four screw rods 16 at the same time, and the four groups of worm gear mechanisms 17 are all formed by meshing worm gears and worm screws. A screw mandrel 16 cooperates, and wherein, the inner threaded hole of worm gear is sleeved outside the screw mandrel 16 and cooperates with this screw mandrel 16; Described rotary drive mechanism 15 is a reduction motor, and the output shaft of described rotary drive mechanism 15 is connected with described The input transmission connection of the three-axis spiral bevel gear steering gear 22, the output shaft at one end of the three-axis spiral bevel gear steering gear 22 is in transmission connection with one end of the first transmission rod 18, and the other end of the first transmission rod 18 It is connected with the input shaft of the first two-axis spiral bevel gear steering gear 23, and the output shaft of the first two-axis spiral bevel gear steering gear 23 is in transmission connection with one end of the third transmission rod 20; the three-axis spiral The output shaft at the other end of the bevel gear steering gear 22 is in transmission connection with one end of the second transmission rod 19, and the other end of the second transmission rod 19 is in transmission with the input shaft of the second two-axis helical bevel gear steering gear 24. connected, the output shaft of the second two-axis helical bevel gear steering gear 24 is connected with one end of the fourth transmission rod 21; The fourth transmission rod 21 is connected with the worm transmission of the other two groups of the worm gear and worm mechanisms 17; Both the gear 23 and the second two-axis spiral bevel gear steering gear 24 are installed on the outer support frame 2 .

A guide mechanism is provided between the outer support frame 2 and the box body 1, and the guide mechanism is composed of a plurality of box body guide wheels 25, and the box body guide wheels 25 are fixedly arranged on the outer support frame 2 and connected with the outer support frame 2. The outer surface of the box body 1 is slidingly connected.

The test box also includes a gap sealing mechanism, which includes a blocking plate 26 and a fourth driving mechanism 27; a gap is provided on the side wall of the box body 1, and the shape and size of the gap are consistent with the The shape and size of the blocking plate 26 match, and the blocking plate 26 is arranged at the gap and can close the gap; the main part of the horizontal transition bottom plate 29 is provided with a first opening, and a part of the main part The side edge is arched upwards to be provided with an arched section 31 capable of avoiding the power output shaft of the horizontal vibrating table. The arched section 31 is provided with a second opening, and the first opening communicates with the second opening. The shape of the section 31 is identical to the shape of the notch; when the bottom plate is installed for the horizontal vibration test, the fourth drive mechanism 27 can drive the blocking plate 26 to open, and then the horizontal transition bottom plate 29 is installed on At the bottom of the box body 1, the arched section 31 is located at the gap and the arched section 31 closes the gap together with the power output shaft of the horizontal vibrating table.

The outer support frame 2 is provided with an auxiliary control mechanism 32, the auxiliary control mechanism 32 includes a limit controller and an electrical circuit, the limit controller is a travel switch or a photoelectric distance sensor, and the auxiliary control mechanism 32 can be configured according to The raised or lowered height of the box body 1 is controlled correspondingly to the protruding position of the bottom plate telescopic mechanism 6 .

In this embodiment, the primary bracket driving mechanism 8 is composed of a motor, a gear and a rack, and the motor drives the gear to slide on the rack; the secondary bracket driving mechanism 10 is an air cylinder; the third straight line The driving mechanism 33 , the fourth linear driving mechanism 14 and the fifth linear driving mechanism 27 all use air cylinders. No matter whether the above-mentioned driving mechanism adopts a cylinder, a motor or a hydraulic cylinder, it is a common driving form in the technical field, which will not affect the overall technical concept and technical characteristics of the utility model, nor will it limit the protection scope of the utility model.

Different types of bottom plates 11 protruding out are selected according to actual test needs. The specific working process example is: when only carrying out the temperature and humidity test, the bottom plate telescopic mechanism 6 carrying the blind plate 28 stretches out, and uses the blind plate 28 to seal the casing 1 of the test chamber; 1 Rising to the protruding position of the bottom plate telescopic mechanism 6 of the blind plate 28, the primary bracket 7 and the secondary bracket 9 are stretched out in place, the bottom plate pressing mechanism 4 is unlocked, the blind plate 28 falls off to the secondary bracket 9, and a The first-level bracket 7 and the second-level bracket 9 are retracted into place again; then, the box body 1 moves to the bracket extension position of the vertical transition base plate 30, the bracket carries the vertical transition base plate 30 and stretches out, and the box body 1 is then lowered to the vertical transition position. At the installation position of the bottom plate 30, at this time, the bottom plate pressing mechanism 4 locks the vertical transition bottom plate 30 under the drive of the cylinder, the bracket retracts in place, the box body 1 rises to the table height of the vertical vibration test bench, and the bottom walking mechanism is started. The box body 1 slides and translates on the translation guide rail 3 to the working position of the vertical vibration test bench.

In addition, those skilled in the art can also make slight changes on the basis of this embodiment, for example, three sets of the plate changing mechanism 6 can be arranged on the three sides of the bottom of the box body 1; the four screw rods 16 are distributed in the box body At the four corners of the top of body 1.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (8)

1. A test box for a multi-comprehensive environmental test system, comprising a box (1) for simulating the climate environment within the effective space, the bottom of the box (1) is provided with a replaceable bottom plate (11), It is characterized in that: an outer support frame (2) is provided outside the box (1), a translation track (3) is provided under the box (1), and the box (1) is seated on the outer support On the frame (2), the outer support frame (2) is moved and supported on the translation track (3); between the box body (1) and the outer support frame (2), a lifting mechanism for lifting the box body (1) is provided ; The lifting mechanism includes a rotary drive mechanism (15), four screw rods (16), four sets of worm gear mechanisms (17), a first transmission rod (18), a second transmission rod (19), a third transmission rod ( 20), the fourth transmission rod (21), the three-axis helical bevel gear steering (22), the first two-axis helical bevel gear steering (23) and the second two-axis helical bevel gear steering (24); Four screw rods (16) are vertically arranged and distributed on the four corners of the box body (1), the box body (1) is supported on the four screw rods (16) at the same time, four sets of worm gear mechanisms ( 17) are composed of a worm gear and a worm meshing. The center of the worm gear is provided with an internal thread hole. Each set of worm gear mechanism (17) cooperates with a screw (16), wherein the internal thread hole of the worm wheel is set on the screw (16) outside and cooperate with the screw rod (16); the rotary drive mechanism (15) is a geared motor or a hand crank, and the output shaft of the rotary drive mechanism (15) and the three-axis spiral bevel gear steer The input transmission connection of the device (22), the output shaft at one end of the three-axis helical bevel gear steering device (22) is connected with the transmission connection at one end of the first transmission rod (18), and the first transmission rod (18) The other end is connected to the input shaft of the first two-axis spiral bevel gear steering (23), and the output shaft of the first two-axis spiral bevel gear steering (23) is connected to one end of the third transmission rod (20). Transmission connection; the output shaft at the other end of the three-axis helical bevel gear steering gear (22) is in transmission connection with one end of the second transmission rod (19), and the other end of the second transmission rod (19) is connected with the The input shaft of the second two-axis helical bevel gear steering gear (24) is connected in transmission, and the output shaft of the second two-axis helical bevel gear steering gear (24) is in transmission connection with one end of the fourth transmission rod (21); The third transmission rod (20) is connected to the worms of the two groups of worm gear mechanisms (17), and the fourth transmission rod (21) is connected to the worm gears of the other two groups of worm gear mechanisms (17); The rotary drive mechanism (15), the worm gear mechanism (17), the three-axis helical bevel gear steering gear (22), the first two-axis helical bevel gear steering gear (23) and the second two-axis helical bevel gear steering gear (24 ) are installed on the outer support frame (2). 2. The test box for a multi-comprehensive environmental test system according to claim 1, characterized in that: a guide mechanism is provided between the outer support frame (2) and the box body (1), and the guide mechanism is composed of a plurality of boxes The box guide wheel (25) is fixedly arranged on the outer support frame (2) and is slidably connected with the outer surface of the box body (1). 3. The test box for a multi-comprehensive environmental test system according to claim 1, characterized in that: the four screw rods (16) are distributed at the four corners of the bottom of the box (1), or, the Four screw rods (16) are distributed on the four corners of the top of the box body (1). 4. The test chamber for a multi-comprehensive environmental test system according to claim 1, characterized in that: the bottom plate (11) is a blind plate (28), a vertical transition bottom plate (30) or a horizontal transition bottom plate (29); The test box also includes a gap sealing mechanism, which includes a sealing plate (26) and a fifth linear drive mechanism (27); a gap is opened on the side wall of the box (1), and the gap is The shape and size are matched with the shape and size of the blocking plate (26), and the blocking plate (26) is arranged at the gap and can close the gap; the main part of the horizontal transition bottom plate (29) A first opening is provided, and one side edge of the main body is arched upwards, and an arched section (31) capable of avoiding the horizontal vibration power output shaft of the vibrating table is provided, and a second opening is provided on the arched section (31) , the first opening communicates with the second opening, and the shape of the arched section (31) is the same as the shape of the notch; when performing a horizontal vibration test, the fifth linear drive mechanism (27) can drive The blocking plate (26) is opened, and then the horizontal transition bottom plate (29) is installed on the bottom of the box (1), at this time, the arched section (31) is located at the gap and the arched section ( 31) Close the gap together with the power output shaft of the horizontal vibrating table. 5. The test box for a multi-comprehensive environmental test system according to claim 1, characterized in that: a plate changing device for changing the bottom plate (11) is provided on the bottom side of the box (1); The board device is composed of at least one set of board changing mechanism (6), and each set of board changing mechanism (6) is placed on the bottom side of the box (1); each set of board changing mechanism (6) has a first-level guide rail and a first-level bracket (7), secondary bracket (9), primary bracket driving mechanism (8) and secondary bracket driving mechanism (10); the primary guide rail is a guiding support structure for moving, and the primary guide rail Relatively positioned or fixedly connected to the outer support frame (2), the first-level bracket (7) is a first-level board or frame structure used to support the bottom plate (11), and the first-level bracket (7) is located On the first-level guide rail and relative to the first-level guide rail, the first-level bracket drive mechanism (8) is a first linear drive mechanism and is arranged between the first-level guide rail and the first-level bracket (7). to drive the first-level bracket (7) to telescopically move along the direction of the first-level guide rail; the first-level bracket (7) is provided with a second-level guide rail, and the second-level bracket (9) is the second level for supporting the bottom plate (11) plate or frame structure, the secondary bracket (9) is seated on the secondary guide rail of the primary bracket (7) and moved relative to the secondary guide rail, the secondary bracket drive mechanism (10) is the second The second linear drive mechanism is arranged between the primary bracket (7) and the secondary bracket (9), and is used to drive the secondary bracket (9) to move telescopically along the direction of the secondary guide rail; the secondary bracket (9) Be provided with a seat that is used for carrying base plate (11) on it. 6. The test box for a multi-comprehensive environmental test system according to claim 5, characterized in that: multiple sets of the plate changing mechanism (6) are arranged on the bottom side of the box (1), and stacked in the vertical direction Arrangement; or, multiple sets of the board changing mechanism (6) are arranged on both sides of the bottom of the box body (1); or, multiple sets of the board changing mechanism (6) are arranged on three sides of the bottom of the box body (1). 7. The test chamber for a multi-comprehensive environmental test system according to claim 5, characterized in that: the primary guide rail is composed of a main guide rail (12), a secondary guide rail (13) and a fourth linear drive mechanism (14), The main rail (12) is positioned or fixedly connected relative to the outer support frame (2), and one end of the auxiliary rail (13) is hinged to one end of the main rail (12). In the initial state, the auxiliary rail (13) is connected to the main The two guide rails (12) are in a folded state, and the fourth linear drive mechanism (14) can drive the auxiliary guide rail (13) to extend and make the extended auxiliary guide rail (13) and the main guide rail (12) in the same straight line . 8. The test box for a multi-comprehensive environmental test system according to any one of claims 5 to 7, characterized in that: the outer support frame (2) is provided with an auxiliary control mechanism (32), and the auxiliary control mechanism (32) includes a limit controller and an electrical circuit, the limit controller is a travel switch or a photoelectric distance sensor, and the auxiliary control mechanism (32) can correspond to different extension positions of the plate changing mechanism (6). Control the rising or falling height of the box body (1).