Shockproof constant-temperature test device
By setting the test chamber and the refrigerator unit separately and filling sand between the support frames, the problem of vibration impact in the gyroscope temperature test is solved, more accurate temperature test and equipment stability are achieved, and the test chamber is improved Shock-proof effect.
Patent Information
- Application Number
- CN202421323578.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing gyroscope temperature test chamber ignores the impact of the vibration of the refrigeration unit on the gyroscope indication function, resulting in the inability to accurately detect the actual performance of the gyroscope.
A shock-proof and constant temperature test device was designed. By setting the test chamber and the refrigeration unit separately, and filling sand between the support frame and the test chamber to reduce the impact of vibration, the split support frame and a triangle fixing frame were used to reduce the impact of vibration. Enhance the stability and combine the insulation layer of the inner and outer boxes and the temperature control mechanism to achieve constant temperature test.
It effectively eliminates the impact of vibration during the refrigeration unit on the gyroscope, improves the accuracy of temperature tests and the stability of the equipment, and simplifies the structure to achieve good shock-proof effects.
Smart Images
Figure CN222337520U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing instruments, in particular to a shockproof constant temperature testing device. Background Art
[0002] Gyroscopes are flight instruments that use gyroscopic characteristics to measure the heading and attitude of an aircraft. Pilots rely on the instructions of gyroscopes to control the aircraft and keep the aircraft in the correct heading and attitude to complete flight or combat missions. Since the environment of the aircraft is different from that of the ground, it is also necessary to use a test chamber to detect the effect of temperature on the gyroscope's indications in order to ensure the safety of the aircraft's navigation.
[0003] However, the existing gyroscope temperature test chamber often ignores the impact of the vibration of components such as the refrigeration unit on the indication function of the gyroscope itself during the test, resulting in the indication function of the gyroscope being actually affected by the combined influence of vibration and temperature. The actual impact on the gyroscope itself cannot be detected through temperature testing. For this reason, the inventor has made a new invention. Utility Model Content
[0004] The utility model aims to provide a shockproof constant temperature test device for the deficiencies of the prior art, which has the characteristics of low cost and convenient use.
[0005] To achieve the above-mentioned purpose, the utility model is a shockproof constant temperature testing device, including a test box, a test cavity and a temperature control mechanism for providing high-temperature or low-temperature airflow to the test cavity, and a refrigeration unit for providing a cold source, the refrigeration unit is connected to the temperature control mechanism, and the refrigeration unit and the test box are separately arranged; it also includes a supporting mechanism, the supporting mechanism includes a supporting frame and a supporting platform for placing test samples, the supporting platform is arranged in the test cavity, the supporting frame is arranged below the test cavity, the supporting frame extends into the test cavity and is connected to the supporting platform.
[0006] Preferably, a cavity with an opening is provided at the bottom of the test box, and the support frame is accommodated in the cavity.
[0007] Preferably, there is a gap between the support frame and the open end of the cavity, and the gap is filled with sand.
[0008] Preferably, at least one set of fixing frames is provided on the outer wall of the bottom end of the test box, and the fixing frames are triangular in shape.
[0009] Preferably, the bottom end of the fixing frame is provided with supporting feet and pulleys.
[0010] Preferably, the temperature control mechanism includes an air duct and a fan, a heater and an evaporator which are sequentially arranged inside the air duct, and the evaporator is connected to the refrigeration unit; an air inlet is arranged above the air duct and the test chamber, and an air return outlet is arranged below, the fan is arranged at the air inlet, and the heater and evaporator are arranged between the air inlet and the return air outlet.
[0011] Preferably, the test box includes an inner box and an outer box, and an insulation layer is provided between the inner box and the outer box.
[0012] Preferably, a control panel is hung on the outside of the test box.
[0013] Beneficial effects: Compared with the prior art, the utility model is a shockproof constant temperature test device, which has the following advantages: 1. The test box and the refrigeration unit are separately arranged to eliminate the adverse effects of the vibration generated when the refrigeration unit is working on the gyroscope test; 2. An independent test platform is provided, and a gap is left between the test platform and the test box and filled with sand to further eliminate the adverse effects of the vibration generated when the fan is working on the test; 3. The overall equipment structure is simple and the shockproof effect is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0015] Figure 2 It is a schematic diagram of the internal structure of the test box of the utility model.
[0016] Figure 3 This is a schematic diagram of the insulation layer structure of the utility model.
[0017] Figure 4 This is a schematic diagram of the test chamber structure of the utility model.
[0018] Reference numerals include:
[0019] Test box--1, cavity--11, gap--12, fixing frame--13, supporting foot--131, pulley--132, inner box--14, outer box--15, insulation layer--16, test chamber--2, temperature control mechanism--3, air duct--31, fan--32, heater--33, evaporator--34, air inlet--35, return air outlet--36, refrigeration unit--4, supporting mechanism--5, supporting frame--51, supporting platform--52, control panel--6. DETAILED DESCRIPTION
[0020] The following is combined with Figures 1 to 4 The utility model is described in detail.
[0021] The utility model is a shockproof constant temperature test device, comprising a test box 1, wherein a test chamber 2 and a temperature control mechanism 3 for providing high temperature or low temperature airflow to the test chamber 2 are provided inside the test box 1, and a refrigeration unit 4 for providing a cold source is also provided, wherein the refrigeration unit 4 is connected to the temperature control mechanism 3, and the refrigeration unit 4 is separately provided from the test box 1; and a support mechanism 5 is also provided, wherein the support mechanism 5 comprises a support frame 51 and a support platform 52 for placing a test sample, wherein the support platform 52 is provided in the test chamber 2, and the support frame 51 is provided below the test chamber 2, and the support frame 51 extends into the test chamber 2 and is connected to the support platform 52. The utility model is suitable for the temperature test of a gyroscope, and the utility model makes the vibration generated when the refrigeration unit 4 is in operation not transmitted to the test box 1 by separately providing the test chamber 1 and the refrigeration unit 4, thereby eliminating the adverse effect of vibration factors on the temperature test of the gyroscope, and making the temperature test result of the gyroscope more accurate.
[0022] To further improve the technical solution, a cavity 11 with an opening is provided at the bottom of the test box 1, and the support frame 51 is accommodated in the cavity 11. At the same time, there is a gap 12 between the support frame 51 and the open end of the cavity 11, and the gap 12 is filled with sand.
[0023] The present technical solution opens a cavity 11 at the bottom of the test box 1, and places the support frame 51 therein, so that the support frame 51 and the test box 1 are also separated, and the gyroscope test sample placed on the support platform 52 is separated from the test box 1, and the influence of the vibration of the test box 1 on the test process is eliminated again. As for the gap 12 between the support frame 51 and the open end of the cavity 11, it is filled with sand, which not only seals the gap 12 but also has a heat preservation effect.
[0024] Preferably, at least one set of fixing frames 13 is disposed on the outer wall of the bottom end of the test box 1, and the fixing frames 13 are triangular in shape. The fixing frames 13 of this structure are more stable and can stably support the test box 1.
[0025] Preferably, the bottom end of the fixing frame 13 is provided with a supporting foot 131 and a pulley 132. The supporting foot 131 is foldably connected to the fixing frame 13, and the supporting foot 131 stabilizes the fixing frame 13 on the ground. When the test box 1 needs to be moved, the supporting foot 131 is bent upward and folded, and the pulley 132 drives the test box 1 to move.
[0026] As an example, Figure 2As shown, the temperature control mechanism 3 includes an air duct 31 and a fan 32, a heater 33 and an evaporator 34 sequentially arranged inside the air duct 31, and the evaporator 34 is connected to the refrigeration unit 4; an air inlet 35 is arranged above the air duct 31 and an air return port 36 is arranged below the test chamber 2, the fan 32 is arranged at the air inlet 35, and the heater 33 and the evaporator 34 are arranged between the air inlet 35 and the air return port 36. The fan 32 guides the air flow to enter the test chamber 2 from the air inlet 35, and the air flow then flows back to the air duct 31 from the air return port 36 and passes through the evaporator 34 and the heater 33 in sequence, and the evaporator 34 or the heater 33 is turned on as needed, thereby forming a low-temperature or high-temperature air flow.
[0027] To further improve the technical solution, the test box 1 includes an inner box 14 and an outer box 15, and an insulation layer 16 is provided between the inner box 14 and the outer box 15. The insulation layer 16 can prevent the test temperature of the test box 1 from being transmitted to the outer surface of the test box 1, and even if a person touches the outer surface of the test box 1, he will not be burned, which can ensure the personal safety of the test personnel.
[0028] Preferably, a control panel 6 is hung on the outer side of the test box 1 for controlling.
[0029] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.
Claims
1. A shockproof constant temperature test device, comprising a test box (1), wherein a test chamber (2) is provided inside the test box (1) and a temperature control mechanism (3) for providing a high temperature or low temperature airflow to the test chamber (2), characterized in that: The test chamber (1) further comprises a refrigeration unit (4) for providing a cold source, the refrigeration unit (4) being connected to the temperature control mechanism (3), and the refrigeration unit (4) and the test chamber (1) being arranged separately; and a support mechanism (5) being further comprised, the support mechanism (5) comprising a support frame (51) and a support platform (52) for placing a test sample, the support platform (52) being arranged in the test chamber (2), the support frame (51) being arranged below the test chamber (2), the support frame (51) extending into the interior of the test chamber (2) and being connected to the support platform (52).
2. The shockproof constant temperature test device according to claim 1, characterized in that: The bottom of the test box (1) is provided with a cavity (11) having an opening, and the support frame (51) is accommodated in the cavity (11).
3. The shockproof constant temperature test device according to claim 2, characterized in that: There is a gap (12) between the support frame (51) and the open end of the cavity (11), and the gap (12) is filled with sand.
4. The shockproof constant temperature test device according to claim 2, characterized in that: At least one set of fixing frames (13) is provided on the outer wall of the bottom end of the test box (1), and the fixing frames (13) are triangular in shape.
5. The shockproof constant temperature test device according to claim 4, characterized in that: The bottom end of the fixing frame (13) is provided with a supporting foot (131) and a pulley (132).
6. The shockproof constant temperature test device according to claim 1, characterized in that: The temperature control mechanism (3) comprises an air duct (31) and a fan (32), a heater (33) and an evaporator (34) which are sequentially arranged inside the air duct (31), and the evaporator (34) is connected to the refrigeration unit (4); an air inlet (35) is arranged above the air duct (31) and a return air outlet (36) is arranged below the test chamber (2); the fan (32) is arranged at the air inlet (35), and the heater (33) and the evaporator (34) are arranged between the air inlet (35) and the return air outlet (36).
7. The shockproof constant temperature test device according to claim 1, characterized in that: The test box (1) comprises an inner box (14) and an outer box (15), and a heat-insulating layer (16) is provided between the inner box (14) and the outer box (15).
8. A shockproof constant temperature test device according to any one of claims 1 to 7, characterized in that: A control panel (6) is suspended on the outside of the test box (1).