Flywheel automatic test service life checking system

Abstract

A flywheel automatic test life checking system can make full use of space and sort all control modules in a zero manner without scattering; the heat dissipation problem of the whole service life assessment system is improved, operation of testers is facilitated, and the overall performance of the assessment system is improved. The flywheel automatic test service life assessment system comprises a service life assessment cabinet and a vacuum tank, the service life assessment cabinet comprises a cabinet body (1), a display screen assembly (2), a control case (3), a storage drawer (4) and a heat dissipation device, and a plurality of reaction flywheels to be tested are placed in the vacuum tank and connected with the control case in the cabinet through a cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of product life test, especially relates to a flywheel automatic test life evaluation system. BACKGROUND

[0002] The attitude control subsystem is the core key component for ensuring the on-orbit life and mission effectiveness of the space vehicle, and the flywheel is an important part of the attitude adjustment execution mechanism, and the service life of the flywheel is also an important factor affecting the on-orbit life of the space vehicle, and the service life of the flywheel is the key basis for confirming the service life of the flywheel.

[0003] The previous life evaluation of the flywheel is that the flywheel is operated in a vacuum environment, a computer is connected with the flywheel to be evaluated through a communication switching module, a direct-current stabilized power supply is used to provide uninterrupted normal voltage for the flywheel to be tested, a temperature sensor is connected with a temperature acquisition card to monitor the temperature value of the flywheel during long-time operation, an automatic test software periodically sends control instructions to the flywheel, the running speed and current data of the satellite attitude control flywheel are obtained through the telemetry return of the satellite attitude control flywheel, the service life of the flywheel is evaluated through the monitored temperature, running speed and current data, and the accelerated life evaluation is carried out.

[0004] The computer, temperature acquisition module, direct-current stabilized power supply and communication module of the life evaluation method are placed on the test table without effective fixation, and the cable connection is messy, the control module or cable may fall off due to the long flywheel life evaluation time of several months, and the direct-current power supply for supplying power to the flywheel generates heat, the heat dissipation effect is weak, and the service life of the direct-current stabilized power supply is affected. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a flywheel automatic test life evaluation system which can fully utilize space, zero return to each control module without falling, improve the heat dissipation problem of the whole life evaluation system, facilitate the operation of the test personnel and improve the overall performance of the evaluation system.

[0006] The technical scheme of the utility model is as follows: the flywheel automatic test life evaluation system comprises a life evaluation cabinet and a vacuum tank, the life evaluation cabinet comprises a cabinet body (1), a display screen assembly (2), a control machine box (3), a storage drawer (4) and a heat dissipation device, and a plurality of reaction flywheels to be tested are placed in the vacuum tank and connected with the control machine box in the cabinet through cables.

[0007] The cabinet body comprises a cabinet plate (11), vertical beams (12), support beams (13), and a cabinet deck (14), the cabinet plate is a panel of each face of the whole cabinet, the cabinet plate encloses a closed space, the support beams are divided into horizontal beams and vertical beams, the horizontal beams and the vertical beams form a frame to support the whole cabinet, each side of the frame supports two vertical beams, each vertical beam is provided with multiple bends, arrayed waist-shaped grooves (121) are formed in the vertical beams, and the cabinet deck is fixedly installed on the bends through the waist-shaped grooves;

[0008] The display screen assembly, the control cabinet, and the storage drawer are sequentially installed in the cabinet body from top to bottom; the display screen assembly comprises a display screen (21), a display screen panel (22), and a display screen mounting rack (23), the display screen panel is embedded in the cabinet body in a detachable manner, and the display screen is installed on the display screen panel through the display screen mounting rack; the control cabinet is installed on the cabinet deck and comprises a main control cabinet (31), a power supply cabinet (32), and a temperature monitoring cabinet (33), the main control cabinet contains an industrial computer (311) as a computer control unit to control multiple reaction flywheels to perform life evaluation tests, the power supply cabinet supplies power to the multiple reaction flywheels, and simultaneously supplies power to multiple flywheels with different voltage inputs, the temperature monitoring cabinet performs multi-channel monitoring on the operating temperature of the reaction flywheels, and the temperature data is displayed on the display screen of the temperature monitoring cabinet; the storage drawer accommodates connection cables or debugging tools.

[0009] The heat dissipation device comprises a cabinet air conditioner (5) installed on the left side of the cabinet body.

[0010] The cabinet plate encloses a closed space, the support beams are divided into horizontal beams and vertical beams, the horizontal beams and the vertical beams form a frame to support the whole cabinet, each side of the frame supports two vertical beams, each vertical beam is provided with multiple bends, arrayed waist-shaped grooves are formed in the vertical beams, the cabinet deck is fixedly installed on the bends through the waist-shaped grooves, the display screen assembly, the control cabinet, and the storage drawer are sequentially installed in the cabinet body from top to bottom, the control cabinet is installed on the cabinet deck and comprises a main control cabinet, a power supply cabinet, and a temperature monitoring cabinet, the main control cabinet contains an industrial computer as a computer control unit to control multiple reaction flywheels to perform life evaluation tests, the power supply cabinet supplies power to the multiple reaction flywheels, and simultaneously supplies power to multiple flywheels with different voltage inputs, the temperature monitoring cabinet performs multi-channel monitoring on the operating temperature of the reaction flywheels, and the temperature data is displayed on the display screen of the temperature monitoring cabinet, and the storage drawer accommodates connection cables or debugging tools, so that the space can be fully utilized, each control module is arranged in a zero-return manner, and there is no scattering; the cabinet air conditioner is installed on the left side of the cabinet body as a heat dissipation device, so that the heat dissipation problem of the whole life evaluation system is improved, the display screen assembly is installed on the upper portion of the cabinet body, and the overall performance of the evaluation system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1It is the appearance schematic view of the life test cabinet of the flywheel automatic test life test system according to the utility model.

[0012] Figure 2 It is the front view of the life test cabinet of the flywheel automatic test life test system according according to the utility model.

[0013] Figure 3 It is the structure schematic view inside the life test cabinet according to the utility model.

[0014] Figure 4 It is the back view of the life test cabinet of the flywheel automatic test life test system according to the utility model.

[0015] Figure 5 It is the split structure schematic view of the temperature monitoring machine box according to the utility model.

[0016] Figure 6 It is the back view of the temperature monitoring machine box according to the utility model.

[0017] Figure 7 It is the internal structure schematic view of the temperature monitoring machine box according to the utility model.

[0018] Figure 8 It is the structure schematic view of the control assembly installation bottom plate according to the utility model.

[0019] Figure 9 The connection relationship of the main control machine box, the power supply machine box, the temperature monitoring machine box and the to-be-tested reaction flywheel is shown. DETAILED DESCRIPTION

[0020] As Figures 1-9 shown, the flywheel automatic test life test system comprises: a life test cabinet and a vacuum tank (not shown in the figure), the life test cabinet comprises: a cabinet body 1, a display screen assembly 2, a control machine box 3, a storage drawer 4, a heat dissipation device, and a plurality of to-be-tested reaction flywheels are placed in the vacuum tank and connected with the control machine box in the cabinet through a cable.

[0021] The cabinet body comprises: a cabinet plate 11, a vertical beam 12, a support beam 13 and a machine box deck 14, the cabinet plate is a panel of each surface of the whole cabinet, the cabinet plate surrounds a closed space, the support beam is divided into a horizontal beam and a vertical beam, the horizontal beam and the vertical beam form a frame to support the whole cabinet, each two vertical beams are supported on both sides of the frame, each vertical beam is provided with a plurality of bends, an array type waist groove 121 is opened on the vertical beam, and the machine box deck is fixedly installed on the bend through the waist groove.

[0022] The display screen assembly, the control case and the storage drawer are sequentially installed in the cabinet body from top to bottom; the display screen assembly comprises a display screen 21, a display screen panel 22 and a display screen mounting rack 23, the display screen panel is detachably embedded in the cabinet body, and the display screen is installed on the display screen panel through the display screen mounting rack; the control case is installed on the case deck and comprises a main control case 31, a power supply case 32 and a temperature monitoring case 33, the main control case contains an industrial computer 311 as a computer control unit to control multiple reaction flywheels to perform life evaluation test, the power supply case supplies power for the multiple reaction flywheels and simultaneously supplies power to the flywheels with multiple different voltage inputs, the temperature monitoring case performs multi-channel monitoring on the operating temperature of the reaction flywheels, and the temperature data is displayed on the display screen of the temperature monitoring case; and the storage drawer contains connecting cables or debugging tools.

[0023] The heat dissipation device comprises a cabinet air conditioner 5 installed on the left side of the cabinet body.

[0024] The cabinet plate of the utility model encloses a closed space, the support beam is divided into a cross beam and a vertical beam, the cross beam and the vertical beam form a frame to support the whole cabinet, each side of the frame supports two vertical beams, each vertical beam is provided with multiple bends, an array type waist groove is formed on the vertical beam, the case deck is fixedly installed on the bend through the waist groove, the display screen assembly, the control case and the storage drawer are sequentially installed in the cabinet body from top to bottom, the control case is installed on the case deck and comprises a main control case, a power supply case and a temperature monitoring case, the main control case contains an industrial computer as a computer control unit to control multiple reaction flywheels to perform life evaluation test, the power supply case supplies power for the multiple reaction flywheels and simultaneously supplies power to the flywheels with multiple different voltage inputs, the temperature monitoring case performs multi-channel monitoring on the operating temperature of the reaction flywheels, and the temperature data is displayed on the display screen of the temperature monitoring case, and the storage drawer contains connecting cables or debugging tools, so that the space can be fully utilized, each control module is zeroed, and there is no scattering; the cabinet air conditioner is installed on the left side of the cabinet body as a heat dissipation device, so that the heat dissipation problem of the whole life evaluation system is improved, the closed cabinet maintains constant temperature, the display screen assembly is installed on the upper portion of the cabinet body, the test personnel is facilitated to operate, and the overall performance of the evaluation system is improved.

[0025] Preferably, it further comprises a guide rail mounting rack 41 installed below the guide rail 42 of the storage drawer, and the guide rail mounting rack is provided with multiple bend reinforcing ribs, so that the drawer can bear relatively heavy objects.

[0026] Preferably, the flywheel automatic test life test system also comprises a back door assembly, the back door assembly comprising: a back door 61, a handle 62, a wire hole 63, a cabinet lock 64, the back door is embedded and detachable, the lower side of the back door is supported on the cabinet, the upper side is rotationally fixed with the cabinet lock, not less than one handle is installed at the middle position of the back door, the wire hole is below the handle, a wire protection ring is installed on the wire hole, the cable of the cabinet is connected with the flywheel outside the cabinet through the wire hole. The back door is embedded and detachable, the lower side of the back door is supported on the cabinet, the upper side is rotationally fixed with the cabinet lock, in the case of normal operation of the life test system, the back door is generally locked with the cabinet lock to avoid operation by non-specific personnel, not less than one handle is installed at the middle position of the back door, the back door is convenient to take off in the case of connection; the wire hole is below the handle, a wire protection ring is installed on the wire hole, the bending radius of the cable is increased, and the wire hole is used for connecting the cable of the cabinet with the flywheel outside the cabinet. The cable passes through the wire hole of the cabinet back door, and the positions of the cables are orderly arranged without disorder.

[0027] Preferably, the temperature monitoring cabinet comprises: a front panel assembly 331, a rear panel assembly 332, a 3U cabinet body 333, a 3U cabinet cover 334, a fan 335, a temperature monitoring control assembly 336, a control assembly installation side plate 337, and a control assembly installation bottom plate 338; the fan has two, which are installed in diagonal positions of the 3U cabinet body in a forward direction and a reverse direction, one is an air inlet, and the other is an air outlet, so that the heat generated by the electrical devices in the cabinet is removed to the maximum extent; the 3U cabinet body and the cover plate are fixed by screws, and the 3U cabinet cover and the 3U cabinet body are fixed by a press-in rivet nut 339 in the screw hole position on the inner side of the cabinet body, so that the cabinet cover and the cabinet body are fixed conveniently.

[0028] Preferably, a line fixing frame 8 is installed on the control assembly installation bottom plate, and the cables are tightly fixed on the line fixing frame. The line fixing frame is used for fixing the cables in the cabinet, so that the cable ports are not easy to fall off, and the cables are tightly fixed on the line fixing rod in a horizontal and vertical manner, and the whole is beautiful.

[0029] Preferably, the control assembly installation bottom plate is a flat plate, and a large-size weight-reducing cutout 338a is formed in the bottom. The weight of the whole system is reduced.

[0030] Preferably, the left and right sides of the front panel and the cabinet body are covered with a pressing strip 7 at the joint. The cabinet is more tightly sealed, and the appearance of the cabinet is more beautiful.

[0031] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiment still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A flywheel automated test lifetime qualification system, characterized by: It includes: The life test cabinet and the vacuum tank, the life test cabinet includes: cabinet body (1), display screen assembly (2), control machine box (3), storage drawer (4), heat dissipation device, a plurality of reaction flywheels to be tested are placed in the vacuum tank and connected with the control machine box in the cabinet through a cable; The cabinet body includes: cabinet plate (11), vertical beam (12), support beam (13), machine box deck (14), the cabinet plate is the panel of each surface of the whole cabinet, the cabinet plate encloses a closed space, the support beam is divided into a cross beam and a longitudinal beam, the cross beam and the longitudinal beam form a frame to support the whole cabinet, each side of the frame supports two vertical beams, each vertical beam is provided with a plurality of bends, an array type waist groove (121) is opened on the vertical beam, and the machine box deck is fixedly installed on the bends through the waist groove; The display screen assembly, the control machine box and the storage drawer are installed in the cabinet body from top to bottom; the display screen assembly includes: display screen (21), display screen panel (22) and display screen mounting rack (23), the detachable display screen panel is embedded in the cabinet body, and the display screen is installed on the display screen panel through the display screen mounting rack; the control machine box is installed on the machine box deck and includes: main control machine box (31), power supply machine box (32) and temperature monitoring machine box (33), the main control machine box contains an industrial computer (311) as a computer control unit to control the life test of the plurality of reaction flywheels, the power supply machine box supplies power for the plurality of reaction flywheels and simultaneously supplies power to the flywheels with different voltage inputs, and the temperature monitoring machine box performs multi-channel monitoring on the operating temperature of the reaction flywheels, and the temperature data is displayed on the display screen of the temperature monitoring machine box; the storage drawer accommodates the connecting cable or the debugging tool; The heat dissipation device includes a cabinet air conditioner (5) installed on the left side of the cabinet body.

2. The flywheel automated testing and endurance evaluation system of claim 1, wherein: It further includes a guide rail mounting rack (41) installed below the guide rail (42) of the storage drawer, and the guide rail mounting rack has a plurality of bend reinforcing ribs.

3. The flywheel automated testing and burn-in system of claim 2, wherein: It further includes a rear door assembly including: a rear door (61), a handle (62), a wire passing hole (63), and a cabinet lock (64), the rear door is embedded and detachable, the lower side of the rear door is supported on the cabinet, the upper side is rotationally fixed by the cabinet lock, not less than one handle is installed at the middle position of the rear door, the handle is below the wire passing hole, a wire protection ring is installed on the wire passing hole, and the machine box cable passes through the wire passing hole and is connected with the reaction flywheel outside the cabinet.

4. The flywheel automated testing and burn-in system of claim 3, wherein: The temperature monitoring machine box includes: a front panel assembly (331), a rear panel assembly (332), a 3U machine box body (333), a 3U machine box cover (334), a fan (335), a temperature monitoring control assembly (336), a control assembly installation side plate (337), and a control assembly installation bottom plate (338); the fan has two, which are installed in diagonal positions of the 3U machine box body in a forward and reverse direction, one is an air inlet, and the other is an air outlet, the 3U machine box body and the cover plate are fixed by screws, and the inside screw hole position of the box body is fixed by a press-in nut (339) to fix the 3U machine box cover and the 3U machine box body.

5. The flywheel automated testing and burn-in system of claim 4, wherein: A line fixing rack (8) is installed on the control assembly installation bottom plate, and the cable is tightly fixed on the line fixing rack.

6. The flywheel automated testing and burn-in system of claim 5, wherein: The control assembly mounting bottom plate is a flat plate, and a large-size weight-reducing cutout (338a) is formed in the bottom.

7. The flywheel automated testing and burn-in system of claim 5, wherein: The front panel is covered with a pressing strip (7) at the joint with the left and right sides of the cabinet body.

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