CN115817867B - On-line maintenance operation box for space station effective load - Google Patents
On-line maintenance operation box for space station effective load Download PDFInfo
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- CN115817867B CN115817867B CN202211721070.7A CN202211721070A CN115817867B CN 115817867 B CN115817867 B CN 115817867B CN 202211721070 A CN202211721070 A CN 202211721070A CN 115817867 B CN115817867 B CN 115817867B
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- Filtering Of Dispersed Particles In Gases (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to an online maintenance operation box for a space station payload, which comprises an operation box truss and a panel, wherein the operation box truss and the panel are integrally formed, and the panel is hermetically covered on the operation box truss; a partition board is arranged in the operation box body, a back board interlayer is formed between the partition board and a back panel of the operation box body, and an operation area is formed between the partition board and a front panel of the operation box body; load auxiliary operation equipment is arranged in the operation area, and a cabin penetrating connector electrically connected with a cable connected with the load auxiliary operation equipment is connected on the panel in a sealing way; the back plate interlayer is internally provided with a three-waste treatment device and an environment monitoring device, the main structure of the environment monitoring device is positioned in the back plate interlayer, and the monitoring end of the environment monitoring device passes through the partition plate in a sealing way and is positioned in the operation area; an air outlet is formed in the upper end of the partition board, and an air inlet is formed in the lower end of the partition board; the upper end of the three-waste treatment device is communicated with the operation area through an air outlet, and the lower end of the three-waste treatment device is communicated with the operation area through an air inlet.
Description
Technical Field
The invention relates to the technical field of space station online cabinets, in particular to an online maintenance operation box for a space station effective load.
Background
With the development of manned aerospace technology, the creation of a long-term living and working environment in outer space becomes the center of gravity of the human aerospace industry. The logistic supply of the international space station is very expensive and difficult to perform relative to any previous natural exploring activity of human beings, the logistic problem faced by building a base on moon and Mars in the future is more serious, and especially the loss caused by ground guarantee delay can not be measured for dealing with emergency events. Thus, in view of the initiative of astronauts, the ability to enhance autonomous maintenance and support of facilities is an important measure to solve logistical replenishment problems by providing personnel with a range of tools and technical support.
An online maintenance and adjustment operation cabinet (hereinafter referred to as an online cabinet) is a scientific and technical experiment platform for space station application system planning, and mainly provides a workplace for on-orbit fault diagnosis, relay level maintenance and manual or mechanical operation for space station effective load. The on-line cabinet can utilize the space environment conditions in the cabin provided by the manned space station and the on-orbit operation, maintenance and replacement capability of spacecrafts, and on-orbit maintenance and adjustment operation and experimental research are carried out based on the resource constraints of external machines, electricity, heat, information, measurement and control and the like.
The on-line maintenance operation support unit (simply referred to as an 'operation box') is used as a main functional component of the on-line cabinet, provides a large-volume, multi-type interface and environment-controllable closed working space for an operated object, and provides necessary conditions for the safe, reliable and convenient direct participation of an astronaut in on-orbit operation and scientific experiments. Therefore, the operation box needs to design various functional part components to realize corresponding functions, and meanwhile, mutual matching and harmonious coexistence of the functional part components are ensured. In order to ensure smooth and safe operation and experiment, the operation box is integrally designed into a multifunctional system with considerable, measurable, replaceable and controllable operation and experiment processes. Such comprehensive, complex design requirements in the fields of mechanical, electrical, thermal, liquid, gas, control, and ergonomic are a challenge.
Disclosure of Invention
The invention provides an on-line maintenance operation box for a space station payload, which aims to meet the space station requirement.
The technical scheme for solving the technical problems is as follows: an on-line maintenance operation box for a space station payload comprises an operation box truss and a panel, wherein the operation box truss is integrally formed, the panel is hermetically covered on the operation box truss, and the operation box truss and the panel are encircled to form an operation box body with a closed structure; a partition board is arranged in the operation box body, a back board interlayer is formed between the partition board and the back of the operation box body, and an operation area is formed between the partition board and the front panel of the operation box body;
Load auxiliary operation equipment is arranged in the operation area, and a cabin penetrating connector electrically connected with a cable connected with the load auxiliary operation equipment is connected on the panel in a sealing manner;
the three-waste treatment device and the environment monitoring device are arranged in the back plate interlayer, the main structure of the environment monitoring device is positioned in the back plate interlayer, the monitoring end of the environment monitoring device passes through the partition plate in a sealing way through a cabin penetrating joint and is positioned in the operation area, and a pipeline of the three-waste treatment device passes out of the panel of the operation box body in a sealing way through the cabin penetrating joint;
the upper end of the partition board is provided with an air outlet, the lower end of the partition board is provided with an air inlet, the upper end of the three-waste treatment device is communicated with the operation area through the air outlet, and the lower end of the three-waste treatment device is communicated with the operation area through the air inlet.
The beneficial effects of the invention are as follows: the operation box body adopts a structure form of integrally casting and combining the sealing panel, reduces the overall molding difficulty of the box body, and solves the processing problem of the installation interfaces of all the components in the box body through the sealing connection between the panel and the partition plate and all the functional component. The inside of the operation box body is reasonably distributed and arranged in a partition mode, so that all components are not interfered with each other and are matched with each other, various interfaces are reserved for other units and effective loads, and the load operable space is enlarged; and the three-waste treatment device is arranged in the back plate interlayer, so that the occupied space is greatly saved due to structural coupling design, and the rapid self-cleaning capacity and the air cooling heat dissipation function in an operation area can be realized.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the cabin penetrating connector is in sealing connection with the panel through a sealing gasket and a sealing ring, one end face of the cabin penetrating connector is in sealing connection with the panel through a double O ring, and a monitoring end of the environment monitoring device or a pipeline of the three-waste treatment device is in sealing connection with one end of the cabin penetrating connector, which is located in the operation box body, through the double O ring.
The beneficial effects of adopting the further scheme are as follows: the back of the box body is adaptively designed according to different sealing installation modes of the connector, the liquid pipeline and the gas pipeline, so that the use requirement is met by the integral tightness of the box body while the communication of the inner part, the outer part, the electric part and the liquid part is ensured.
Further, the panel comprises a front panel, side panels, a top panel, a back panel and a bottom panel; the front side of the operation box truss is provided with an inlet and an outlet, the upper end of the inlet and the outlet is hinged with a front panel, and the peripheral side of the front panel is detachably and hermetically connected with the inlet and the outlet; the bottom of the operation box truss is provided with a bottom plate in a sealing manner, the top of the operation box truss is provided with a top plate in a sealing manner, the side part of the operation box truss is provided with a side plate in a sealing manner, and the back of the operation box truss is provided with a back plate in a sealing manner;
Equidistant screw blind holes are arranged on the bottom plate, and screw blind holes are also arranged on the side plates and the partition plates.
The beneficial effects of adopting the further scheme are as follows: through setting up the front panel that can open and shut, reduced the shaping degree of difficulty of box, the setting of screw blind hole has also carried out the function extension for the operation installation of load moreover.
Further, the partition plate comprises an upper partition plate and a middle partition plate, wherein the upper partition plate is arranged above the front side of the middle partition plate and is spaced from the middle partition plate; the air outlet is formed by the interval between the upper partition plate and the middle partition plate; the middle partition plate is arranged at intervals between the panels at the bottom of the operation box body, and the air inlet is formed at intervals between the middle partition plate and the panels at the bottom of the operation box body.
The beneficial effects of adopting the further scheme are as follows: the arrangement of the upper partition plate and the middle partition plate provides the coupling performance for the air inlet and outlet structure of the three-waste treatment device, and the air inlet and outlet structure of the three-waste treatment device can be matched with the air inlet and outlet structure of the three-waste treatment device to form a back plate interlayer separated from the operation area, so that the structural coupling performance is better, and fewer structural members are used.
Further, three waste treatment device includes filter equipment, fan subassembly, gas-liquid heat exchanger and air-out subassembly, filter equipment's import sets up the air intake department of baffle lower extreme, filter equipment's export communicates with the air intake of fan subassembly through first vent line, the air outlet of fan subassembly communicates with the inlet end of gas-liquid heat exchanger, the inlet intercommunication of gas-liquid heat exchanger's end of giving vent to anger through second vent to anger pipeline and air-out subassembly, the export setting of air-out subassembly is in the air outlet department of baffle upper end.
The beneficial effects of adopting the further scheme are as follows: the air-cooling circulation system adopted by the three-waste treatment device not only can treat waste gas, waste liquid and waste gas particles, but also has the characteristic of air-cooling circulation, realizes the structural form of air-cooling circulation and filtration integration in a limited space, and realizes the three-waste treatment and air-cooling heat dissipation requirements of an online cabinet operation box while meeting the operation requirements of astronauts.
Further, the filtering device comprises a filtering cylinder bracket, a plurality of filtering components and an air inlet seal head, the filtering components are respectively assembled on the filtering cylinder bracket, the air inlet seal head is installed on one side of the filtering cylinder bracket and surrounds the filtering cylinder bracket to form an air inlet channel, and the outlets of the filtering components are communicated with the air inlet channel; the air inlet end socket is communicated with an air inlet of the fan assembly through a first ventilation pipeline.
The beneficial effects of adopting the further scheme are as follows: the air filtered by the filtering component can enter the fan component from the air inlet channel and then is sent out through the air outlet component, and the air outlet is more uniform and stable.
Further, the filter assembly comprises a filter cartridge, a filter core, a filter screen, a top cover and a bottom cover, wherein the filter cartridge is of a cylindrical structure with two open ends, the filter core is adaptively arranged in the filter cartridge, the filter screen is arranged at the inner side of one end of the cylindrical structure, the filter screen is in pressure connection with the filter core, the top cover is fixed at the inner side of one end of the filter cartridge and is in pressure connection with the filter screen, and the bottom cover is fixed at the inner side of the other end of the filter cartridge and is in pressure connection with the filter core; a plurality of quick-change holes are formed in one side, away from the filter screen, of the top cover, and a first thread section is formed in the center of one side, away from the filter element, of the bottom cover;
The filter cartridge support is provided with a plurality of assembly channels, the bottom of each assembly channel is provided with an assembly threaded hole, each assembly channel is internally inserted with a filter assembly, and the filter assembly is in threaded connection with the assembly threaded hole corresponding to the bottom of the assembly channel through a first threaded section on the bottom cover.
The beneficial effects of adopting the further scheme are as follows: the filter core and the filter screen are integrated in the filter cylinder with the cylindrical structure and are pressed and fixed through the top cover and the bottom cover, so that the integrated coupling design of a narrow space in the operation box of the online cabinet is convenient; the first thread section is arranged on the bottom cover, so that the series connection of the plurality of filter assemblies is facilitated, and the filter assemblies are also conveniently assembled into the assembly channel of the filter cartridge bracket; through set up the quick change hole on filter component's top cap, also convenient cooperation quick change tool carries out quick change operation.
Further, the air outlet assembly comprises an air outlet end socket and an air outlet filter screen, an outlet at one side of the air outlet end socket is of an open structure, and the air outlet filter screen covers the open structure of the air outlet end socket; and the air outlet end of the gas-liquid heat exchanger is communicated with the inlet of the air outlet seal head through a second ventilation pipeline.
Further, a gas system and a gas exhaust system are arranged in the back plate interlayer, the gas exhaust system and the gas system are both arranged in the back plate interlayer of the operation box body, an exhaust gas output pipeline of the gas exhaust system passes through the back plate in a sealing manner and is communicated with the external environment of the operation box, and an exhaust gas input pipeline of the gas exhaust system is positioned in the operation area; the gas input pipeline of the gas system passes through the back plate in a sealing way and is communicated with external gas supply equipment, and the gas output pipeline of the gas system is positioned in the operation area; the inner side wall of the partition board is also provided with a differential pressure sensor and a humidity sensor;
the exhaust system is internally provided with a first electromagnetic valve for controlling the on-off of an exhaust gas input pipeline and an exhaust gas output pipeline, and the first electromagnetic valve is fixed on a partition board or a backboard through a first valve bracket; the gas system is internally provided with a second electromagnetic valve for controlling the on-off of a gas input pipeline and a gas output pipeline, and the second electromagnetic valve is fixed on the partition board or the backboard through a second valve bracket; the free end of the waste gas input pipeline is provided with a first quick-break male head, and the free end of the gas output pipeline is provided with a second quick-break male head.
Further, the first quick-break male head and the second quick-break male head are provided with short-circuit hard pipes with adjustable flow; the short-circuit hard tube comprises a quick-break female head, a short-circuit pipe and a flow regulating assembly, one end of the short-circuit pipe is in sealing connection with the inner side of one end of the quick-break female head, the short-circuit pipe is of a hollow structure with two open ends and is communicated with the quick-break female head, and the flow regulating assembly is arranged on the inner side of the other end of the short-circuit pipe;
the flow regulating assembly comprises a flow regulating pore plate and a pressure head, a first annular step is arranged on the inner side wall of the opening at the other end of the nipple, the flow regulating pore plate is in pressure connection with the first annular step, and the pressure head is matched with the inner side wall of the opening at the other end of the nipple and is in pressure connection with the flow regulating pore plate; the middle part of the flow regulating pore plate is provided with an axially-through flow regulating hole, the middle part of the pressure head is provided with an axially-through flow passage, and the flow passage, the flow regulating hole and the hollow structure of the nipple are mutually communicated;
the flow regulating assembly further comprises a filter screen, a second annular step is further arranged on the inner side wall of the opening at the other end of the nipple, the outer diameter of the second annular step is larger than that of the first annular step, and the second annular step is arranged adjacent to the opening at the other end of the nipple; the filter screen is pressed on the second annular step, so that the flow regulating orifice plate is limited between the filter screen and the first annular step; the pressure head is in press connection with the filter screen, and the filter screen is in press connection with the flow regulating pore plate.
Further, an inner thread is arranged on the inner side wall of the opening at the other end of the nipple, a first outer thread is arranged on the outer side wall of the pressure head, and the first outer thread is in threaded connection with the inner thread of the nipple; the pressure head is internally provided with an operation through hole which is axially communicated, and the operation through hole is of a polygonal structure; an annular pressing edge is arranged at one end, close to the filter screen, of the pressure head, and the annular pressing edge is provided with a circular through hole; the circular through hole is communicated with the operation through hole; the periphery of the flow regulating orifice plate is in spaced arrangement or adaptive abutting joint with the step side wall of the first annular step, and the periphery of the filter screen is in spaced arrangement or adaptive abutting joint with the step side wall of the second annular step.
Further, the short-circuit hard tube further comprises an outer sleeve nut, an annular limiting rib is arranged on the outer side wall of the short-circuit hard tube and is abutted against the end face of one end of the quick-break female head; the outer side wall of one end of the quick-break female head is provided with a second external thread, and the external nut is in threaded connection with the second external thread of the quick-break female head; one end of the outer sleeve nut is provided with an annular compression joint step, and the annular compression joint step is in compression joint with the annular limiting rib.
Further, load auxiliary operation equipment includes lamp area, removable camera support, load connector and six mechanical arms, the lamp area is installed the top both sides of operation district, the diagonal position at operation district top respectively is equipped with one removable camera support, the top of operation district is equipped with six mechanical arms, sealing connection has the load connector on the back panel of operation box body.
Further, the replaceable camera support comprises a camera support and a camera support, the camera support comprises a first camera support and a second camera support, the first camera support and the second camera support are mutually buckled to form a cylindrical structure with two open ends, one open end of the cylindrical structure is used for clamping a camera assembly, and the other open end of the cylindrical structure is provided with a support mounting surface; the camera support comprises a camera support body, a camera support body and a cylindrical structure, wherein the camera support body is arranged on the camera support body;
the camera support is internally provided with a cable channel, a first cable through hole is formed in the camera support mounting surface of the camera support, a cable assembly surface is further formed on the outer side wall of the camera support, a second cable through hole is formed in the cable assembly surface, and the first cable through hole and the second cable through hole are communicated with the cable channel;
Three first mounting holes are formed in the camera support mounting surface, two first mounting holes are formed in the upper side of the camera support mounting surface, and one first mounting hole is formed in the lower side of the camera support mounting surface; three second mounting holes are formed in the mounting surface of the support of the cylindrical structure, are arranged in one-to-one correspondence with the three first mounting holes and are connected and fixed through connecting pieces;
the mounting surface of the box body is a plane or an L-shaped surface.
The beneficial effects of adopting the further scheme are as follows: by arranging the first camera support and the second camera support, the camera assembly can be wrapped and arranged between the two camera supports, so that the camera assembly is clamped in the camera supports, and the stability of the whole cantilever part of the camera assembly is improved; through setting up the camera support to set up box installation face and the camera support installation face that the angle was arranged, can provide structural support for the camera support, still consider on-orbit change demand, satisfy ergonomic requirement.
Drawings
FIG. 1 is a schematic perspective view of an on-line maintenance operator box for use with a space station payload in accordance with the present invention;
FIG. 2 is a schematic side view of an on-line maintenance operator box for use with space station payloads in accordance with the present invention;
FIG. 3 is a schematic side view of an on-line maintenance operator box for use with space station payloads of the present invention;
FIG. 4A is a schematic diagram of the internal front view of an on-line maintenance operator's box for use with space station payloads in accordance with the present invention;
FIG. 4B is a schematic diagram showing a second internal front view of the on-line maintenance operator's box for use with space station payloads in accordance with the present invention;
FIG. 5A is a schematic view of the sealing structure of the bottom plate and the back plate of the operation box body of the present invention;
FIG. 5B is a schematic view of the sealing structure at the front panel of the console box body of the present invention;
FIG. 5C is a schematic view of the sealing structure of the cabin passing joint in the operation box body of the invention;
FIG. 5D is a schematic view of the seal arrangement at the cabin passing connector in the operator's compartment body of the present invention;
FIG. 6 is a schematic diagram of an air-cooled circulation system for three-waste treatment of an on-line cabinet operation box;
FIG. 6A is a schematic perspective view of a quick-change filter assembly according to the present invention;
FIG. 6B is a schematic diagram showing a quick-change filter assembly according to a second embodiment of the present invention;
FIG. 6C is a schematic view of a split structure of the filter assembly of the present invention in a quick-change state;
FIG. 6D is a three-dimensional schematic diagram of a quick-change filter assembly according to the present invention;
FIG. 6E is a schematic perspective view of a series connection of two filter assemblies according to the present invention;
FIG. 6F is a schematic view of a split structure of the filter assembly of the present invention mated with a plug;
FIG. 7A is a schematic illustration of a split construction of a filter assembly and cartridge filter holder of the present invention;
FIG. 7B is an enlarged schematic view of the portion A in FIG. 7A;
FIG. 8 is a schematic perspective view of a shorting rigid pipe with adjustable flow for an on-line cabinet operation box according to the present invention;
FIG. 9 is a schematic diagram of a three-dimensional explosion structure of a short-circuit hard tube with adjustable flow for an operation box of an online cabinet;
FIG. 10 is a schematic diagram of a front view of a shorting rigid pipe with adjustable flow for an on-line cabinet operation box according to the present invention;
FIG. 11 is a schematic cross-sectional view of A-A of FIG. 10;
FIG. 12 is an enlarged schematic view of the portion A in FIG. 11;
FIG. 13 is a schematic perspective view of a nitrogen system according to the present invention;
FIG. 14 is a schematic perspective view of an air system according to the present invention;
FIG. 15 is a schematic perspective view of an exhaust system according to the present invention;
FIG. 16 is a schematic diagram showing a perspective view of a rail cantilever type replaceable camera support for an online cabinet according to the present invention;
FIG. 17 is a schematic diagram of an explosion structure of an on-line cabinet used in a rail cantilever type replaceable camera support according to the present invention;
FIG. 18 is a schematic diagram showing a second perspective view of a rail cantilever type replaceable camera support for an online cabinet according to the present invention;
FIG. 19 is a schematic diagram of an explosion structure of the present invention for a rail cantilever-type replaceable camera mount for an online cabinet;
in the drawings, the list of components represented by the various numbers is as follows:
100. shorting the hard tube; 101. quick-breaking female head; 102. a nipple; 103. a flow rate adjusting orifice plate; 104. a pressure head; 105. a first annular step; 106. a flow rate adjusting hole; 107. a flow passage; 108. a filter screen; 109. a second annular step; 110. an operation through hole; 111. a circular through hole; 112. annular edge pressing; 113. annular limit ribs; 114. a jacket nut; 115. an annular seal groove; 116. a second external thread; 117. an annular crimping step; 118. a hollow structure;
200. a camera mount; 201. a first camera support; 202. a second camera mount; 203. a support mounting surface; 204. a case body mounting surface; 205. a camera mount mounting surface; 206. a first cable through hole; 207. a second cable through hole; 208. a first mounting hole; 209. a second mounting hole; 210. a spigot groove structure; 211. a camera assembly hole; 212. a step structure;
300. a fan assembly;
400. an exhaust gas system; 401. a gas system; 402. a first electromagnetic valve; 403. a first valve bracket; 404. a second valve bracket; 405. a first quick-break male; 406. a second quick-break male; 407. a second electromagnetic valve; 408. a connecting plunger;
500. An operation box body; 502. an upper partition plate; 503. an operation box truss; 504. a front panel; 505. a side plate; 506. a top plate; 507. a back plate; 508. a bottom plate; 509. a screw blind hole; 510. a middle partition plate; 511. a double O-ring; 512. a sealing gasket; 513. a six-axis manipulator; 514. a light strip; 515. a replaceable camera support; 516. a load connector assembly; 517. a cooling liquid quick-break inlet; 518. a cooling liquid quick-break outlet; 519. a cabin penetrating connector; 520. cabin penetrating joints; 521. a seal ring; 522. a screw; 523. an external pipeline joint;
600. a gas-liquid heat exchanger; 601. a second ventilation line; 602. a liquid inlet tube; 603. a liquid outlet tube;
700. an air outlet assembly; 701. an air outlet end socket; 702. an air outlet filter screen; 703. a first ventilation line; 800. an air inlet end socket;
900. a filter assembly; 901. a filter cartridge; 902. a filter element; 903. a filter screen; 904. a top cover; 905. a bottom cover; 906. a first thread segment; 907. quick-change holes; 908. a first annular fixing structure; 909. a first reinforcing web; 910. a second annular fixing structure; 911. a second reinforcing spoke; 912. expanding the threaded hole; 913. a blanking cover; 914. a filter cartridge holder; 915. assembling the channel; 916. assembling the threaded hole; 917. a quick-change plate; 918. positioning columns; 919. a quick-change handle; 920. a first screw; 921. a second screw; 922. crimping columns; 923. a humidity sensor; 924. a first temperature sensor.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 to 19, an on-line maintenance operation box for a space station payload of the present embodiment includes an operation box truss 503 integrally formed and a panel hermetically covering the operation box truss 503, where the operation box truss 503 and the panel form an operation box body 500 having a closed structure; a partition board is arranged in the operation box body 500, a back board interlayer is formed between the partition board and a back panel of the operation box body 500, and an operation area is formed between the partition board and a front panel 504 of the operation box body 500;
a load auxiliary operation device is arranged in the operation area, and a cabin penetrating connector 519 electrically connected with a cable connected with the load auxiliary operation device is connected on the panel in a sealing way;
the three-waste treatment device and the environment monitoring device are arranged in the back plate interlayer, the main structure of the environment monitoring device is positioned in the back plate interlayer, the monitoring end of the environment monitoring device passes through the partition plate in a sealing way through a cabin penetrating joint 520 and is positioned in the operation area, and a pipeline of the three-waste treatment device passes out of a panel of the operation box body 500 in a sealing way through the cabin penetrating joint 520;
The upper end of the partition board is provided with an air outlet, the lower end of the partition board is provided with an air inlet, the upper end of the three-waste treatment device is communicated with the operation area through the air outlet, and the lower end of the three-waste treatment device is communicated with the operation area through the air inlet.
The operation box body of this embodiment adopts the integral casting to combine sealed panel's structural style, has reduced the whole shaping degree of difficulty of box, through the sealing connection between panel and baffle and each functional unit subassembly, has solved the processing problem of each inside subassembly installation interface in the box. The inside of the operation box body is reasonably distributed and arranged in a partition mode, so that all components are not interfered with each other and are matched with each other, various interfaces are reserved for other units and effective loads, and the load operable space is enlarged; and the three-waste treatment device is arranged in the back plate interlayer, so that the occupied space is greatly saved due to structural coupling design, and the rapid self-cleaning capacity and the air cooling heat dissipation function in an operation area can be realized.
As shown in fig. 5A to 5D, the cabin penetrating connector 519 of the present embodiment is connected with the panel in a sealing manner through a sealing gasket 512 and a sealing ring 521, one end face of the cabin penetrating joint 520 is connected with the panel in a sealing manner through a double O-ring 511, and a monitoring end face of the environmental monitoring device is connected with the cabin penetrating joint 520 in a sealing manner through the double O-ring 511. The back of the box body is adaptively designed according to different sealing installation modes of the connector, the liquid pipeline and the gas pipeline, so that the use requirement is met by the integral tightness of the box body while the communication of the inner part, the outer part, the electric part and the liquid part is ensured. One end of the cabin penetrating connector 520 outside the operation box body can be connected with an external pipeline connector 523 in a sealing way through a double O ring 511, and then connected with an external metal hard pipe through the external pipeline connector 523. One end of the cabin penetrating joint 520 positioned in the operation box body can be in sealing connection with the environment monitoring device or the gas system or the exhaust system in the operation box body through the double O-rings 511.
The environment monitoring device includes a humidity sensor 923, a first temperature sensor 924, a differential pressure sensor, and the like.
As shown in fig. 1 to 4, the panels of the present embodiment include a front panel 504, a side panel 505, a top panel 506, a back panel 507, and a bottom panel 508; the front side of the operation box truss 503 is provided with an inlet and an outlet, the upper end of the inlet and the outlet is hinged with a front panel 504, and the peripheral side of the front panel 504 is detachably and hermetically connected with the inlet and the outlet; a bottom plate 508 is arranged at the bottom of the operation box truss 503 in a sealing manner, a top plate 506 is arranged at the top of the operation box truss 503 in a sealing manner, a side plate 505 is arranged at the side part of the operation box truss 503 in a sealing manner, and a back plate 507 is arranged at the back of the operation box truss 503 in a sealing manner; equidistant screw blind holes 509 are arranged on the bottom plate 508, and screw blind holes 509 are also arranged on the side plate 505 and the partition plate. Through setting up the front panel that can open and shut, reduced the shaping degree of difficulty of box, the setting of screw blind hole has also carried out the function extension for the operation installation of load moreover. According to the demand of on-orbit payload, need have fixed load in the control box body, and the design that can carry out extension equipment in later stage, owing to the limited space in the control box body, consequently arranged the spacing 25X 25 mm's M5 standard screw hole on the bottom plate, also increased 100X 100 mm's spacing M5 standard screw hole in the vacancy of curb plate and baffle, the operation such as convenient on-orbit operation, temporary fixation, extension equipment.
Further, the box truss 503 may be a cast aluminum frame, and the panel may be an aluminum alloy panel. The front panel can be made of transparent materials matched with the aluminum alloy frame due to the functional specificity of the front panel, and the transparent materials can facilitate the observation of the operation condition in the operation box. The panel can be designed for weight reduction and local reinforcement according to mechanical analysis. In order to better improve the contact strength and sealing performance of the operation box and the front panel and the electromagnetic compatibility, the box inlet and outlet are designed in an embedded mode according to the size and the shape of the front panel, corresponding screw hole sites are designed on the contact surface, when the front panel is locked, the whole front panel can be wrapped by the box inlet and outlet, the comfort of the front panel when an astronaut opens and closes on the orbit is improved, and meanwhile, the top angles and edges of the box inlet and outlet are subjected to larger chamfering treatment, so that the astronaut or the payload entering and exiting is prevented from being scratched. The front panel can be opened upwards, and can also be fixed at the inlet and outlet of the operation box body in a sealing way through screws. The front panel 504 is provided with an operation hole. The front panel provides a visual observation window for a large on-orbit operation space; the front panel is provided with an operation hole for a sealed large operation space, so that the pressure bearing capacity and sealing capacity of the open-close type operation box body are improved, the operability of the open-close type front panel of the operation box body is improved, and the reliability of the front panel of the multifunctional operation box body is improved. The problems of visual observation and visual operation of the on-orbit large-scale operation box body are solved; the on-orbit large payload is required to enter and exit the box body; solving the need for on-track payload sealing operations; the variety of payloads that the online cabinet can accommodate is expanded.
Specifically, as shown in fig. 5A, the bottom plate 508, the side plate 505, the back plate 507 and the top plate 506 are all hermetically connected to the operation box truss 503 through sealing rings 521, and are fixedly connected to the operation box truss 503 through screws 522. As shown in fig. 5B, a seal ring 521 is provided on the peripheral side of the front panel 504, and the front panel 504 can be sealingly connected to the peripheral side wall of the inlet/outlet of the operation box truss 503 by the seal ring 521. And is fixedly connected with the peripheral side wall of the inlet and outlet of the operation box truss 503 by a screw 522.
As shown in fig. 1, 2 and 4, the partition board of the present embodiment includes an upper partition board 502 and a middle partition board 510, the upper partition board 502 being disposed above the front side of the middle partition board 510 and spaced apart from the middle partition board 510; the air outlet is formed by the interval between the upper partition 502 and the middle partition 510; the middle partition 510 is arranged at intervals with the panel at the bottom of the operation box body 500, and the air inlet is formed at intervals between the middle partition 510 and the panel at the bottom of the operation box body 500. The arrangement of the upper partition plate and the middle partition plate provides the coupling performance for the air inlet and outlet structure of the three-waste treatment device, and the air inlet and outlet structure of the three-waste treatment device can be matched with the air inlet and outlet structure of the three-waste treatment device to form a back plate interlayer separated from the operation area, so that the structural coupling performance is better, and fewer structural members are used.
As shown in fig. 6 to 7B, a preferred solution of the three-waste treatment device in this embodiment includes a filtering device, a fan assembly 300, a gas-liquid heat exchanger 600 and an air outlet assembly 700, wherein an inlet of the filtering device is disposed at an air inlet at a lower end of the partition board, an outlet of the filtering device is communicated with the air inlet of the fan assembly 300 through a first ventilation pipeline 703, an air outlet of the fan assembly 300 is communicated with an air inlet end of the gas-liquid heat exchanger 600, an air outlet end of the gas-liquid heat exchanger 600 is communicated with an inlet of the air outlet assembly 700 through a second ventilation pipeline 601, and an outlet of the air outlet assembly 700 is disposed at an air outlet at an upper end of the partition board. A liquid inlet pipe 602 is connected to a liquid inlet of the liquid circuit of the gas-liquid heat exchanger 600, and a liquid outlet pipe 603 is connected to a liquid outlet of the liquid circuit of the gas-liquid heat exchanger 600.
As shown in fig. 6, the filtering device of the present embodiment includes a filter cartridge support 914, a plurality of filter assemblies 900 and an air inlet seal head 800, wherein the plurality of filter assemblies 900 are respectively assembled on the filter cartridge support 914, the air inlet seal head 800 is installed on one side of the filter cartridge support 914 and surrounds the filter cartridge support 914 to form an air inlet channel, and outlets of the plurality of filter assemblies 900 are communicated with the air inlet channel; the air inlet end socket 800 is communicated with the air inlet of the fan assembly 300 through a first ventilation pipeline 703. The air filtered by the filtering component can enter the fan component from the air inlet channel and then is sent out through the air outlet component, and the air outlet is more uniform and stable.
Specifically, as shown in fig. 6A to 6F, in a preferred embodiment of the filter assembly 900 of the present embodiment, the filter assembly 900 includes a filter cartridge 901, a filter element 902, a filter screen 903, a top cover 904, and a bottom cover 905, where the filter cartridge 901 has a cylindrical structure with two open ends, the filter screen 902 is adaptively disposed in the filter cartridge 901, the filter screen 903 is disposed inside one end of the cylindrical structure, the filter screen 903 is crimped on the filter cartridge 902, the top cover 904 is fixed inside one end of the filter cartridge 901 and is crimped on the filter screen 903, and the bottom cover 905 is fixed inside the other end of the filter cartridge 901 and is crimped on the filter cartridge 902; a plurality of quick-change holes 907 are formed in the side, facing away from the filter screen 903, of the top cover 904, and a first thread segment 906 is formed in the center of the side, facing away from the filter element 902, of the bottom cover 905.
As shown in fig. 6C, in order to reserve more filtering area between the top cover 904 and the filter screen 903 and also to make the press-connection more stable, a plurality of press-connection posts 922 may be provided on a side surface of the top cover 904 close to the filter screen, and the filter screen 903 is pressed against the filter element 902 by the press-connection posts 922. The number of the crimping columns 922 may be plural, and may be uniformly arranged along the circumferential direction of the top cover 904, and one crimping column 922 may be provided at the center of the top cover 904.
As shown in fig. 6A and 6C, in a preferred embodiment of the present invention, three quick-change holes 907 are provided, and the three quick-change holes 907 are disposed at equal intervals near the peripheral edge of the top cover 904. The arrangement of the three quick-change holes ensures that the connection between the quick-change tool and the filter assembly and the quick-change process are more stable and reliable.
As shown in fig. 6A to 6C, the top cover 904 of the present embodiment includes a first annular fixing structure 908 and a plurality of first reinforcing ribs 909, and the first annular fixing structure 908 is fixed to one end side wall of the filter cartridge 901 by a first screw 920; a plurality of first reinforcing ribs 909 are radially fixed on an inner circumferential side wall of the first annular fixing structure 908 at a center of the first annular fixing structure 908. The first reinforcing ribs are arranged to provide as much filter area as possible at the top cover. And fix the first annular fixed knot structure on the inside wall of cartridge filter through first screw, conveniently insert the filter component in the assembly passageway on the cartridge filter support.
As shown in fig. 6C, the quick-change holes 907 of the present embodiment are provided on the first reinforcing web 909. Each of the first reinforcing ribs 909 is provided with a quick-change hole 907.
Further preferably, as shown in fig. 6C, the number of the first reinforcing ribs 909 of the present embodiment is three, and a quick-change hole 907 is provided in a position of each first reinforcing rib 909 near the edge.
As shown in fig. 6B, the bottom cover 905 of the present embodiment includes a second circular fixing structure 910 and a plurality of second reinforcing ribs 911, and the second circular fixing structure 910 is fixed to the other end side wall of the filter cartridge 901 by a second screw 921; a plurality of second reinforcing ribs 911 are radially fixed on the inner circumferential side wall of the second circular fixing structure 910 at the center of the second circular fixing structure 910. Also, the provision of the second reinforcing ribs allows as much filter area at the bottom cover as possible. And fix the second annular fixed knot structure on the inside wall of cartridge filter through the second screw, conveniently insert the filter component in the assembly passageway on the cartridge filter support.
As shown in fig. 6D to 7B, the replaceable filter device for a space station online cabinet of the embodiment can be set in different assembly modes according to different requirements.
In a first assembly mode, as shown in fig. 6C and 6E, an expansion threaded hole 912 is disposed at a center position of the top cover 904 of the filter assembly 900 in this embodiment, the filter assembly 900 is a plurality of filter assemblies coaxially connected in series, and the top cover 904 of one filter assembly 900 is screwed with the first threaded section 906 on the bottom cover 905 of the adjacent filter assembly 900 through the expansion threaded hole 912. The coaxial series connection among a plurality of filter components is convenient, and the filtering precision and the efficiency can be improved.
As shown in fig. 6C and 6F, the replaceable filter device for a space station online cabinet of the embodiment further includes a blocking cover 913, a through hole is disposed at a center position of the blocking cover 913, and a second thread section is disposed at a center position of a side wall of the blocking cover 913; the center of the top cover 904 of the filter assembly 900 is provided with an expansion threaded hole 912, and the blocking cover 913 is connected in the expansion threaded hole 912 on the top cover 904 of the filter assembly 900 through a second threaded section in a threaded manner and covers the opening of one end of the filter cartridge 901. According to different filtering requirements, the top cover can be blocked, and gas to be filtered is directly led into the filtering assembly through the through hole in the center of the blocking cover to be filtered, so that the gas to be filtered does not need to be diffused into the box body of the operation box, and pollution to other equipment and the like is avoided.
As shown in fig. 6B, 7A, and 7B, the filter assembly 900 in this embodiment is multiple, the filter cartridge support 914 has multiple assembly channels, the bottom of each assembly channel is provided with an assembly threaded hole 916, each assembly channel is inserted with the filter assembly 900, and the filter assembly 900 is screwed into the assembly threaded hole 916 corresponding to the bottom of the assembly channel through the first thread segment 906 on the bottom cover 905. The setting of cartridge filter support can provide effectual structural support for a plurality of filter components, and the installation of a plurality of filter components is fixed conveniently.
In the third assembly mode, the bottom of each assembly channel 915 of the filter cartridge support 914 is provided with a channel filter screen 903, and the center of the channel filter screen 903 is provided with an assembly threaded hole 916, so that the first thread segment 906 on the bottom cover 905 of the filter assembly 900 can be screwed in the assembly threaded hole 916.
According to the replaceable filter device for the space station online cabinet, the filter element and the filter screen are integrated in the filter cylinder with the cylindrical structure and are pressed and fixed through the top cover and the bottom cover, so that the integral structure is compact and reliable, and the integrated coupling design of a narrow space in the online cabinet operation box is convenient; the first thread section is arranged on the bottom cover, so that the series connection of the plurality of filter assemblies is facilitated, and the filter assemblies are also conveniently assembled into the assembly channel of the filter cartridge bracket; through set up the quick change hole on filter component's top cap, also convenient cooperation quick change tool carries out quick change operation.
The embodiment also provides a quick-changing method of the replaceable filter device for the space station online cabinet, which is realized by adopting the replaceable filter device for the space station online cabinet and comprises the following steps of: a quick-change plate 917 having the same shape as the top cover 904 of the filter assembly 900 is provided, and a side surface of the quick-change plate 917 is provided with a plurality of positioning columns 918, so that the positioning columns 918 are arranged in one-to-one correspondence with the quick-change holes 907; a quick-change handle 919 is installed at the center of the other side of the quick-change plate 917; when the filter assembly 900 in the assembly channel of the filter cartridge bracket 914 is taken out, a plurality of positioning posts 918 on one side surface of the quick-change plate 917 are correspondingly inserted into a plurality of quick-change holes 907 on the top cover 904 of the filter assembly 900 one by one, and the quick-change handle 919 is held to rotate, so that the first thread section 906 on the bottom cover 905 of the filter assembly 900 is screwed out from the assembly threaded hole 916 at the bottom of the assembly channel, and the filter assembly 900 is taken out; when a new filter assembly 900 is replaced into the assembly channel of the filter cartridge support 914, the new filter assembly 900 is inserted into the corresponding assembly channel, a plurality of positioning posts 918 on one side of the quick-change plate 917 are inserted into a plurality of quick-change holes 907 on the top cover 904 of the new filter assembly 900 in a one-to-one correspondence manner, the quick-change handle 919 is held to rotate, and the first thread segment 906 on the bottom cover 905 of the new filter assembly 900 is screwed into the assembly threaded hole 916 on the bottom of the corresponding assembly channel. The quick-change method of the embodiment facilitates quick removal of the filter assembly from the filter cartridge holder and also facilitates quick installation of a new filter assembly into the assembly channel of the filter cartridge holder.
Specifically, the quick-change plate 917 of the present embodiment may take various forms, for example, in fig. 6A to 6C, a quick-change plate 917 having the same shape and structure as the top cover 904 is adopted, and then a quick-change handle 919 having a T-shaped structure is adopted, so that the quick-change handle 919 is fixed at the center of the quick-change plate 917. It is also possible to use a circular quick-change plate 917 in fig. 4, then two ear plates are provided on the circumferential side diameter direction of the circular quick-change plate 917, then the quick-change handle 919 is a U-shaped handle, and both ends of the U-shaped handle are respectively fixed on the two ear plates.
As shown in fig. 6, the air outlet assembly 700 of the present embodiment includes an air outlet end enclosure 701 and an air outlet filter screen 702, an outlet on one side of the air outlet end enclosure 701 is in an open structure, and the air outlet filter screen 702 covers the open structure of the air outlet end enclosure 701; the air outlet end of the gas-liquid heat exchanger 600 is communicated with the inlet of the air outlet seal head 701 through a second air passage 601.
Further, as shown in fig. 6, the filtering device and the air outlet assembly 700 are both in a strip structure, the inlet of the filtering device and the outlet of the air outlet assembly 700 face to the same side, and the fan assembly 300 and the gas-liquid heat exchanger 600 are disposed between the filtering device and the air outlet assembly 700. The air outlet device is convenient to arrange in a narrow space at the back of the operation box, other interface positions are reserved between the filtering device and the air outlet component, and operation of astronauts is facilitated. Specifically, a first temperature sensor 924 is disposed at the outlet of the filtering device in this embodiment, and a second temperature sensor is disposed in the air outlet assembly.
The fan assembly of this embodiment adopts the removable fan assembly of anti environmental mechanics, also can adopt conventional fan assembly, can realize that lower part air inlet, top air-out can.
The three-waste treatment device of the embodiment not only can treat waste gas, waste liquid and waste gas particles, but also has the characteristic of air cooling circulation, realizes the structural form of air cooling circulation and filtration integration in the narrow interlayer space at the back of the operation box, and realizes the three-waste treatment and air cooling heat dissipation requirements of the operation box of the online cabinet while meeting the operation requirements of astronauts.
As shown in fig. 1 to 4 and fig. 8 to 15, a gas system 401 and an exhaust gas system 400 are further arranged in the back plate interlayer of the operation box body 500, the exhaust gas system 400 and the gas system 401 are both installed in the back plate interlayer of the operation box body 500, an exhaust gas output pipeline of the exhaust gas system 400 passes through the back plate of the operation box body 500 in a sealing manner through a cabin penetrating joint 520 and is communicated with the external environment of the operation box body 500, and an exhaust gas input pipeline of the exhaust gas system 400 is positioned in an operation area of the operation box body 500; the gas input pipeline of the gas system 401 passes through the back plate of the operation box body 500 in a sealing way through the cabin penetrating joint 520 and is communicated with external gas supply equipment, and the gas output pipeline of the gas system 401 is positioned in the operation box body 500; the inner side wall of the operation box body 500 is also provided with a differential pressure sensor and a humidity sensor 923. The waste gas output pipeline and the gas input pipeline can be connected with a metal hard pipe outside the operation box body through a connecting plunger 408, and a sealing end plate which is in sealing connection with the back plate is arranged on the connecting plunger 408.
As shown in fig. 13 to 15, in the exhaust system 400 of the present embodiment, a first electromagnetic valve 402 for controlling on-off of an exhaust gas input pipeline and an exhaust gas output pipeline is provided, and the first electromagnetic valve 402 is fixed on the partition board or the back board through a first valve bracket 404; a second electromagnetic valve 407 for controlling the on-off of the gas input pipeline and the gas output pipeline is arranged in the gas system 401, and the second electromagnetic valve 407 is fixed on the partition board or the backboard through a second valve bracket 403; the free end of the waste gas input pipeline is provided with a second quick-break male head 406, and the free end of the gas output pipeline is provided with a first quick-break male head 405. Specifically, the gas system includes a nitrogen system and an air system, fig. 13 shows a schematic diagram of the nitrogen system, fig. 14 shows a schematic diagram of the air system, and fig. 15 shows a schematic diagram of the exhaust gas system 400.
As shown in fig. 8 to 12, in this embodiment, the first quick-break male head and the second quick-break male head are connected with a short-circuit hard tube, the exhaust gas system and the gas system are both disposed in the backplate interlayer of the operation box body, and the short-circuit hard tube is disposed on a side wall of the operation area of the partition plate of the backplate interlayer. The short-circuit hard tube adopts a short-circuit hard tube 100 with adjustable flow, and the specific structure of the short-circuit hard tube is as follows:
As shown in fig. 8 to 10, the short hard tube of the present embodiment includes a quick-break female head 101, a nipple 102, and a flow regulating assembly, wherein one end of the nipple 102 is inserted and connected inside one end of the quick-break female head 101 in a sealing manner, the nipple 102 is a hollow structure with two open ends and is communicated with the quick-break female head 101, and the flow regulating assembly is disposed inside the other end of the nipple 102 in an opening manner.
As shown in fig. 9, 11 and 12, in one specific aspect of this embodiment, the flow regulating assembly includes a flow regulating orifice plate 103 and a pressure head 104, a first annular step 105 is disposed on an inner side wall of an opening at the other end of the nipple, the flow regulating orifice plate 103 is pressed against the first annular step 105, and the pressure head 104 is adapted to the inner side wall of the opening at the other end of the nipple 102 and is pressed against the flow regulating orifice plate 103; the middle part of the flow regulating orifice plate 103 is provided with an axially-through flow regulating hole 106, the middle part of the pressure head 104 is provided with an axially-through flow passage 107, and the flow passage 107, the flow regulating hole 106 and a hollow structure 118 of the nipple 102 are mutually communicated. The flow regulating orifice plate can be pressed on the first annular step by the pressure head, and the flow regulating orifice plate is installed and positioned.
Specifically, the flow rate adjusting hole 106 in this embodiment may be a circular through hole.
As shown in fig. 9, 11 and 12, in one specific aspect of this embodiment, the flow regulating assembly further includes a filter screen 108, a second annular step 109 is further disposed on an inner side wall of the opening at the other end of the nipple 102, the outer diameter of the second annular step 109 is greater than the outer diameter of the first annular step 105, and the second annular step 109 is disposed adjacent to the opening at the other end of the nipple 102; the filter screen 108 is pressed on the second annular step 109, so that the flow regulating orifice plate 103 is limited between the filter screen 108 and the first annular step 105; the pressure head 104 is pressed against the filter screen 108, and the filter screen 108 is pressed against the flow rate regulating orifice plate 103. The setting of filter screen can filter impurity in the gas circuit, because the filter screen is very thin, can set up the filter screen on the annular step of second, and the rethread pressure head compresses tightly the filter screen, makes the filter screen clamp establish between pressure head and flow control orifice plate, avoids the filter screen to take place to warp.
Specifically, as shown in fig. 12, the thickness of the flow-rate adjusting orifice plate 103 of the present embodiment is greater than or equal to the height of the step side wall of the first annular step 105, that is, after the flow-rate adjusting orifice plate 103 is placed on the first annular step 105, the upper end of the flow-rate adjusting orifice plate 103 is flush with or slightly higher than the step surface of the second annular step 109.
As shown in fig. 12, an inner thread is disposed on an inner wall of the opening at the other end of the nipple 102 in this embodiment, and a first outer thread is disposed on an outer wall of the pressure head 104, and the first outer thread is in threaded connection with the inner thread of the nipple 102.
As shown in fig. 9 and 12, the ram 104 of the present embodiment has an operation through hole 110 that is axially penetrating, and the operation through hole 110 has a polygonal structure; an annular pressing edge 112 is arranged at one end of the pressure head 104 close to the filter screen 108, and the annular pressing edge 112 is provided with a circular through hole 111; the circular through hole 111 communicates with the operation through hole 110. The pressure head can be screwed into the nipple through the through hole operated by the spanner, and the annular pressure edge at one end of the pressure head is used for crimping the filter screen, so that the filtering performance of the filter screen is not affected.
Specifically, the polygonal structure of the operation through hole 110 may be a hexagonal structure, so that the torque can be applied by using a standard socket wrench. The inner diameter of the circular through hole 111 is smaller than the maximum aperture of the operation through hole 110. The pressure head 104 of this embodiment may be hidden inside the opening at the other end of the nipple 102 and not exposed from the opening at the other end of the nipple 102. The annular bead 112 is disposed to protrude from the end face of the ram 104 for crimping the filter screen.
As shown in fig. 12, in this embodiment, the peripheral side of the flow rate adjusting orifice 103 is in spaced arrangement or fitting abutment with the step side wall of the first annular step 105, and the peripheral side of the filter screen 108 is in spaced arrangement or fitting abutment with the step side wall of the second annular step 109.
As shown in fig. 11, an annular limiting rib 113 is disposed on the outer side wall of the nipple 102 in this embodiment, and the annular limiting rib 113 abuts against an end face of one end of the quick-break female head 101. The annular limiting rib can limit the short connecting pipe on the end face of the quick-break female head.
As shown in fig. 8 to 11, the short hard pipe 100 of the present embodiment further includes a jacknut 114, a second external thread 116 is provided on an outer sidewall of one end of the quick-break female head 101, and the jacknut 114 is screwed on the second external thread 116 of the quick-break female head 101; an annular compression step 117 is arranged at one end of the sleeve nut 114, and the annular compression step 117 is compressed on the annular limiting rib 113. The sleeve nut can compress the annular limiting rib of the short joint on the end face of one end of the quick-break female joint.
As shown in fig. 9 and 11, in this embodiment, a plurality of annular seal grooves 115 are provided on an outer sidewall of one end of the nipple 102, seal rings are provided in the annular seal grooves 115, and the nipple 102 is in sealing connection with an inner sidewall of one end of the quick-break female head 101 through the seal rings.
The short-circuit hard tube of this embodiment is through connecting nipple and flow control subassembly on quick-break female, gas circuit intercommunication when the solenoid valve was opened in can guaranteeing gas system again can guarantee when the solenoid valve was unexpected to be opened, will connect the ability of gas circuit disconnection fast, can also adjust the flow of passageway simultaneously, guarantees that whole process is controllable according to the design.
As shown in fig. 1, 2 and 4, the load assisting operation apparatus of the present embodiment includes a lamp strip 514, a replaceable camera support 515, and a six-axis robot 513, the lamp strip 514 is mounted on both sides of the top of the operation area, one of the replaceable camera support 515 is disposed at each diagonal position of the top of the operation area, and the six-axis robot 513 is disposed at the top of the operation area. And a load connector is connected to the back panel of the operation box body in a sealing way. Be equipped with coolant liquid quick-break entry 517 and coolant liquid quick-break export 518 on the septum 510, coolant liquid quick-break entry 517 and coolant liquid quick-break export 518 are connected with the liquid outlet pipe of gas-liquid heat exchanger 600 respectively, coolant liquid quick-break entry 517 and coolant liquid quick-break export 518 can insert the nipple and communicate, do not influence the normal cycle of coolant liquid in the gas-liquid heat exchanger 600, also can be in insert the cold plate between coolant liquid quick-break entry 517 and the coolant liquid quick-break export 518 for increase the radiating surface in the operation district, can place the cold plate on the bottom plate of operation district, put the load on the cold plate and operate. The middle partition 510 is further provided with a load connector assembly 516 for supplying power to the load, and for communicating with the load.
As shown in fig. 16 to 19, the replaceable camera support of the present embodiment includes a camera support 200 and a camera support, where the camera support includes a first camera support 201 and a second camera support 202, the first camera support 201 and the second camera support 202 are fastened to each other to form a cylindrical structure with two open ends, an opening at one end of the cylindrical structure is used for clamping a camera assembly, and an opening at the other end of the cylindrical structure is provided with a support mounting surface 203; the outer side wall of the camera mount 200 is formed with a case mounting surface 204 and a camera mount mounting surface 205 arranged at an angle, and the cylindrical structure is fitted to the camera mount mounting surface 205 through the mount mounting surface 203.
As shown in fig. 17 and 19, a plurality of step structures 212 are further disposed on the inner side walls of the first camera support 201 and the second camera support 202 in the present embodiment, and are configured to be adapted to the step structures on the outer side walls of the camera assembly, so that the camera assembly can be tightly clamped between the first camera support 201 and the second camera support 202. According to the replaceable camera support, the camera component can be wrapped and arranged between the two camera supports by arranging the first camera support and the second camera support, so that the camera component is clamped in the camera support, and the stability of the whole cantilever part of the camera component is improved; through setting up the camera support to set up box installation face and the camera support installation face that the angle was arranged, can provide structural support for the camera support, still consider on-orbit change demand, satisfy ergonomic requirement.
As shown in fig. 16 and 18, the camera support 200 of the present embodiment has a cable channel therein, a first cable through hole 206 is formed at a camera support mounting surface 205 of the camera support 200, a cable mounting surface is further formed on an outer sidewall of the camera support 200, a second cable through hole 207 is disposed at the cable mounting surface, and the first cable through hole 206 and the second cable through hole 207 are both communicated with the cable channel.
As shown in fig. 16 to 19, the camera mount 200 of the present embodiment has a closed structure on the side walls except for the first cable through hole 206 and the second cable through hole 207, so that the overall electromagnetic compatibility can be improved.
As shown in fig. 16 to 19, the cable mounting surface of the present embodiment is arranged perpendicular to the case mounting surface 204, an included angle between the camera mount mounting surface 205 and the cable mounting surface is an acute angle, and a clamping between the camera mount mounting surface 205 and the case mounting surface 204 is an acute angle.
As shown in fig. 16 to 19, the camera support mounting surface 205 of the present embodiment is provided with three first mounting holes 208, two first mounting holes 208 are located on the upper side of the camera support mounting surface 205, and one first mounting hole 208 is located on the lower side of the camera support mounting surface 205; the support mounting surface 203 of the cylindrical structure is provided with three second mounting holes 209, and the three second mounting holes 209 and the three first mounting holes 208 are arranged in one-to-one correspondence and are connected and fixed through connecting pieces. By arranging the three first mounting holes and the three second mounting holes, the influence on the imaging effect caused by the reverse arrangement of the camera assembly during on-track replacement is avoided; under the condition that the hand accommodating space at the bottom of the camera component and the visual field are limited, a first mounting hole is formed in the lower side of the mounting surface of the camera support, so that the camera support is convenient to assemble and disassemble.
As shown in fig. 17 and 19, the first camera support 201 of the present embodiment is of a C-shaped cylinder structure, the second camera support 202 is of a plate-shaped structure, and an opening side of the C-shaped cylinder structure of the first camera support 201 is detachably connected to a peripheral side edge of the second camera support 202 through a connecting member; three of the second mounting holes 209 are provided on the mount mounting surface 203 of the first camera mount 201. The camera components can be installed and fixed on the first camera support, and the operation such as installation and replacement are convenient.
As shown in fig. 16 to 19, one end of the cylindrical structure in this embodiment is opened to a circular hole structure adapted to the camera module, and the other end of the cylindrical structure is opened to a square hole structure adapted to the camera mount surface 205 of the camera mount 200.
As shown in fig. 16 to 19, the case mounting surface 204 of the present embodiment is a plane or L-shaped surface; the thicknesses of the camera support and the camera mount 200 are respectively 4-7 mm. Different box mounting surfaces can be adopted according to the requirements of the view field in the operation box.
As shown in fig. 17 and 19, the first camera support 201 and the second camera support 202 of the present embodiment are fastened by adopting a spigot-and-socket structure 210; the support mounting surface 203 of the camera support is in buckling connection with the camera support mounting surface 205 on the camera support 200 by adopting a spigot groove structure 210; the first camera support 201 or the second camera support 202 is further provided with a camera assembly hole 211 for connecting with a camera assembly. And the whole electromagnetic compatibility is further improved by adopting the spigot groove structure.
As shown in fig. 16 to 19, after the first camera support 201 and the second camera support 202 are fastened, the first camera support and the second camera support can be connected and fixed by adopting loose screws, the number of the loose screws can be adjusted according to needs, and the on-track dismounting is convenient. The camera mount 200 may be fixed to the camera mount by a screw that is not loosened. The box mounting surface 204 of the camera support 200 may be used to connect and fix with the inner side wall of the box of the operation box, and the camera support is responsible for adjusting the angle of view required by the camera assembly, while ensuring the strength of the connection with the box. The camera mount 200 is to ensure both reliable connection with the operator box and sufficient rigidity to withstand the emission overload of the cantilever mounted camera, while also taking into account the overall electromagnetic compatibility of the camera assembly, and also to enable the camera layout angle to meet the field of view requirements. The local structure of the camera mount 200 may be thickened, up to 6mm or more, to ensure that the cantilever design can withstand the emission overload. The whole volume of the camera support is reduced as far as possible, other surfaces except the cable channel are of a closed design, and a spigot groove design is adopted for the installation surface matched with the camera support, so that the whole electromagnetic compatibility is improved; after mechanical analysis, the thickness of the whole support is properly increased, so that the mechanical strength of the support is improved.
The mechanical test is performed on the on-line cabinet of the embodiment by using the on-orbit cantilever type replaceable camera support, including the acceleration test, the vibration test and the impact test, wherein the acceleration test conditions, the sinusoidal and random vibration test conditions and the impact test conditions are shown in the following table. The impact test condition of the camera assembly is consistent with the component level test level of the on-line maintenance operation support unit by referring to the component level test level of the on-line maintenance operation support unit. According to the embodiment, an online cabinet camera assembly is subjected to a mechanical environment test according to the regulations of an online cabinet camera assembly mechanical test outline, and the online cabinet camera assembly is used for checking the adaptability of an online cabinet shelf product to the mechanical environment, and the basis and reference files are the online maintenance, assembly and adjustment operation cabinet shelf part assembly evaluation test outline of a space application system experiment cabin II, the payload environment test requirement of a manned space station engineering space application system experiment cabin II, GJB 150.16A-2009, military equipment laboratory environment test method part 16: vibration test, report on the design scheme of the experimental cabinet mechanical environment test fixture (bottom view), GJB 1027A-2005, carrier, superior and spacecraft test requirements.
TABLE 1 acceleration test conditions (grade of identification)
TABLE 2 sinusoidal sweep vibration test conditions (identification level)
TABLE 3 random vibration test conditions (identification level)
TABLE 4 impact test conditions
Wherein, acceleration allows deviation: 0-10%;
the allowable error of the vibration frequency is +/-2%;
the amplitude error of the sinusoidal sweep frequency vibration acceleration is +/-10%;
random vibration acceleration power spectral density: the tolerance of 20Hz-1000Hz is +/-1.5 db, the tolerance of 1000Hz-2000Hz is +/-3 db, and the total root mean square value tolerance is +/-1 db;
shock acceleration response spectrum value (q=10, absolute acceleration, natural frequency interval 1/6 octave): -2dB to +6db;
other experimental conditions allow deviations per GJB 1027A-2005;
the vibration table, the test equipment and the sensor used in the test are all metered and qualified by a third party, and according to the actual test control curve of the vibration test, the vibration test conditions and the test process control meet the requirements of a large outline. The camera assembly is in acceleration, vibration, impact test, accomplishes the test of a direction at every turn, has all checked whether outward appearance, the outward appearance of structure, the focusing screw of camera are not hard up, and inspection result is all qualified, simultaneously, after every direction test was accomplished, has tested the imaging effect of camera, and through the test, the camera is after mechanical test finishes, and imaging effect is normal, and camera performance accords with online cabinet operation requirement. After the test, the product to be tested is subjected to appearance inspection, the camera and the lens are not abnormal, the structural component of the camera is not abnormal, and the focusing screw is not loosened. The product has no abnormality in performance inspection such as imaging effect before and after the test in all directions, and the characteristic level of 0.2g before and after the test has no drift basically. In conclusion, after the online cabinet camera component is subjected to vibration test, the appearance of the product is perfect and has no abnormality, the frequency drift meets the requirement of a test outline, and the test is successful.
According to the online cabinet operation box, the camera supports are arranged at the tops of the diagonal positions of the two opposite side walls of the box body respectively, the occupied volume of the camera components on the camera supports is reduced, the occupied volume of the camera components is reduced, interference between the camera components and the linear guide rail travel in the operation box is avoided, and meanwhile, the influence of the brightness of the lamp strip on the imaging effect of the camera is avoided. According to the online cabinet operation box, two camera supports are arranged diagonally, a fixed mode of observing cameras can be provided for a large-scale operation space on the track, the smallest possible camera is guaranteed through structural design, the largest view field volume is covered, and convenience in camera replacement is improved.
In this embodiment, the installation positions of the camera and the light belt need to consider factors such as imaging angle, imaging effect, interference of observation area, illumination of the light belt, and the like; the installation of the smart manipulator needs to consider the maximum reachable space when the manipulator moves; the position of the rapid-break joint of nitrogen, air and waste gas needs to consider the influence of wind loops and gas turbulence when the fan is started; the installation positions of the front acquisition box, the temperature sensor, the humidity sensor and the differential pressure sensor need to be considered, and the influence of the position of other components in the rear area on the signal acquisition distance is considered; the load connector mounting position needs to consider ergonomic factors; in addition, on-track replacement requirements of the replaceable part assembly, as well as cabling issues, need to be considered.
The on-line maintenance operation box is fixed on the main structure of the cabinet, and loads and tools can enter and exit through the front panel which can be unlocked and opened. In order to ensure smooth and safe operation and experiment, the invention designs the whole operation box into a multifunctional system with considerable, measurable, replaceable and controllable operation and experiment process. Considerable means that the astronaut can directly observe the operated object and the operation process through the transparent panel of the operation box; the measurable means that the load auxiliary equipment arranged in the operation box is utilized to carry out preliminary measurement on the operated load; the replaceable means that the device in the operation box can be replaced and can be freely combined and split according to operation and experiment requirements; controllable means that the environment (such as brightness, gas resources and the like) and the fine operation (such as smart manipulator) process in the operation box are controllable; meanwhile, the three-waste treatment device in the operation box can realize the environment monitoring in the box and the treatment functions of waste gas and waste particles.
The online maintenance operation box is used for providing an operation space containing various universal interfaces, observation and illumination for on-orbit maintenance operation and scientific experiments of effective loads, and has the capability of quick self-cleaning. In the design, the box body adopts an assembly mode of integral casting, a sealing panel and an openable front panel, so that the integral forming difficulty of the box body is reduced, and the processing problem of the installation interfaces of all components in the box body is solved; the size of the front panel is matched, so that the size of the front side inlet and the front side outlet of the box body is as large as possible, and a larger effective load can conveniently enter the box body for operation; the design of the truss of the operation box of the whole box body structure needs weight reduction and local reinforcement design, and the requirement of a certain bearing capacity of the box body is met while the whole weight is reduced; the panels of the box body adopt an end face static sealing mode, and after the box body is assembled, the panels are not disassembled any more, so that the overall tightness of the box body is ensured; the box body adopts a four-side installation mode, and is matched with the use of a slide unloading piece to form reliable connection with the online cabinet; the back of the box body is adaptively designed according to different sealing installation modes of the connector, the liquid pipeline and the gas pipeline, so that the integral tightness of the box body meets the use requirement while the communication of the inside and the outside as well as the electric and the liquid is ensured; the inside of the box body is divided into a device installation area in a rear area and a load operation area in a front area, and the middle of the box body is separated by a partition board, so that the load operable space is enlarged; the inside of the box body is reasonably distributed, so that all components are mutually matched without interference, and various interfaces are reserved for other units and payloads; the three-waste treatment device, the partition plate and the interfaces are integrated, so that the functions of air cooling heat dissipation, air path internal circulation, three-waste treatment and functional area separation are realized.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (12)
1. The on-line maintenance operation box for the space station effective load is characterized by comprising an operation box truss and a panel, wherein the operation box truss is integrally formed, the panel is hermetically covered on the operation box truss, and the operation box truss and the panel are encircled to form an operation box body with a closed structure; a partition board is arranged in the operation box body, a back board interlayer is formed between the partition board and a back panel of the operation box body, and an operation area is formed between the partition board and a front panel of the operation box body;
Load auxiliary operation equipment is arranged in the operation area, and a cabin penetrating connector electrically connected with a cable connected with the load auxiliary operation equipment is connected on the panel in a sealing manner;
the three-waste treatment device and the environment monitoring device are arranged in the back plate interlayer, the main structure of the environment monitoring device is positioned in the back plate interlayer, the monitoring end of the environment monitoring device passes through the partition plate in a sealing way through a cabin penetrating joint and is positioned in the operation area, and a pipeline of the three-waste treatment device passes out of the panel of the operation box body in a sealing way through the cabin penetrating joint;
an air outlet is formed in the upper end of the partition board, an air inlet is formed in the lower end of the partition board, the upper end of the three-waste treatment device is communicated with the operation area through the air outlet, and the lower end of the three-waste treatment device is communicated with the operation area through the air inlet;
the partition plate comprises an upper partition plate and a middle partition plate, wherein the upper partition plate is arranged above the front side of the middle partition plate and is spaced from the middle partition plate; the air outlet is formed by the interval between the upper partition plate and the middle partition plate; the middle partition plate is arranged at intervals with the panel at the bottom of the operation box body, and the air inlet is formed at intervals between the middle partition plate and the panel at the bottom of the operation box body;
The panel comprises a front panel, side plates, a top plate, a back plate and a bottom plate; the back plate interlayer is also provided with a gas system and a gas exhaust system, the gas exhaust system and the gas system are both arranged in the back plate interlayer of the operation box body, a waste gas output pipeline of the gas exhaust system passes through the back plate in a sealing way and is communicated with the external environment of the operation box, and a waste gas input pipeline of the gas exhaust system is positioned in the operation area; the gas input pipeline of the gas system passes through the back plate in a sealing way and is communicated with external gas supply equipment, and the gas output pipeline of the gas system is positioned in the operation area; the inner side wall of the partition board is also provided with a differential pressure sensor and a humidity sensor; the exhaust system is internally provided with a first electromagnetic valve for controlling the on-off of an exhaust gas input pipeline and an exhaust gas output pipeline, and the first electromagnetic valve is fixed on a partition board or a backboard through a first valve bracket; the gas system is internally provided with a second electromagnetic valve for controlling the on-off of a gas input pipeline and a gas output pipeline, and the second electromagnetic valve is fixed on the partition board or the backboard through a second valve bracket; the free end of the waste gas input pipeline is provided with a first quick-break male head, and the free end of the gas output pipeline is provided with a second quick-break male head.
2. An on-line maintenance operation box for space station payloads according to claim 1, wherein said cabin penetrating connector is in sealing connection with said panel via a gasket and a seal ring, one end face of said cabin penetrating joint is in sealing connection with said panel via a double O-ring, and a monitoring end of said environmental monitoring device or a pipeline of said three wastes treatment device is in sealing connection with one end of said cabin penetrating joint located in said operation box body via a double O-ring.
3. An on-line maintenance operations box for space station payloads according to claim 1, characterized in that the front side of said operations box truss has an access opening, the upper end of said access opening being hinged with a front panel, the peripheral side of said front panel being in removable sealing connection with said access opening; the bottom of the operation box truss is provided with a bottom plate in a sealing manner, the top of the operation box truss is provided with a top plate in a sealing manner, the side part of the operation box truss is provided with a side plate in a sealing manner, and the back of the operation box truss is provided with a back plate in a sealing manner;
equidistant screw blind holes are arranged on the bottom plate, and screw blind holes are also arranged on the side plates and the partition plates.
4. The on-line maintenance operation box for space station payloads according to claim 1, wherein the three-waste treatment device comprises a filter device, a fan assembly, a gas-liquid heat exchanger and an air outlet assembly, an inlet of the filter device is arranged at an air inlet at the lower end of the partition board, an outlet of the filter device is communicated with the air inlet of the fan assembly through a first ventilation pipeline, an air outlet of the fan assembly is communicated with an air inlet end of the gas-liquid heat exchanger, an air outlet end of the gas-liquid heat exchanger is communicated with an inlet of the air outlet assembly through a second ventilation pipeline, and an outlet of the air outlet assembly is arranged at an air outlet at the upper end of the partition board.
5. The on-line maintenance operations box for space station payloads of claim 4, wherein said filter device comprises a filter cartridge holder, a plurality of filter assemblies respectively assembled on said filter cartridge holder, and an air intake head mounted on one side of said filter cartridge holder and surrounding said filter cartridge holder to form an air intake channel, and wherein the outlets of said plurality of filter assemblies are in communication with said air intake channel; the air inlet end socket is communicated with an air inlet of the fan assembly through a first ventilation pipeline.
6. An on-line maintenance operations box for space station payloads according to claim 5, wherein said filter assembly comprises a filter cartridge having a cylindrical structure with both ends open, a filter screen fitted inside said filter cartridge, a top cover fixed inside one end of said filter cartridge and crimped on said filter screen, and a bottom cover fixed inside the other end of said filter cartridge and crimped on said filter cartridge; a plurality of quick-change holes are formed in one side, away from the filter screen, of the top cover, and a first thread section is formed in the center of one side, away from the filter element, of the bottom cover;
The filter cartridge support is provided with a plurality of assembly channels, the bottom of each assembly channel is provided with an assembly threaded hole, each assembly channel is internally inserted with a filter assembly, and the filter assembly is in threaded connection with the assembly threaded hole corresponding to the bottom of the assembly channel through a first threaded section on the bottom cover.
7. The on-line maintenance operation box for the space station payload according to claim 5, wherein the air outlet assembly comprises an air outlet end socket and an air outlet filter screen, the outlet on one side of the air outlet end socket is of an open structure, and the air outlet filter screen covers the open structure of the air outlet end socket; and the air outlet end of the gas-liquid heat exchanger is communicated with the inlet of the air outlet seal head through a second ventilation pipeline.
8. An on-line maintenance operations box for space station payloads according to claim 1, wherein said first and second quick disconnect male heads are each provided with a short rigid pipe of adjustable flow rate; the short-circuit hard tube comprises a quick-break female head, a short-circuit pipe and a flow regulating assembly, one end of the short-circuit pipe is in sealing connection with the inner side of one end of the quick-break female head, the short-circuit pipe is of a hollow structure with two open ends and is communicated with the quick-break female head, and the flow regulating assembly is arranged on the inner side of the other end of the short-circuit pipe;
The flow regulating assembly comprises a flow regulating pore plate and a pressure head, a first annular step is arranged on the inner side wall of the opening at the other end of the nipple, the flow regulating pore plate is in pressure connection with the first annular step, and the pressure head is matched with the inner side wall of the opening at the other end of the nipple and is in pressure connection with the flow regulating pore plate; the middle part of the flow regulating pore plate is provided with an axially-through flow regulating hole, the middle part of the pressure head is provided with an axially-through flow passage, and the flow passage, the flow regulating hole and the hollow structure of the nipple are mutually communicated;
the flow regulating assembly further comprises a filter screen, a second annular step is further arranged on the inner side wall of the opening at the other end of the nipple, the outer diameter of the second annular step is larger than that of the first annular step, and the second annular step is arranged adjacent to the opening at the other end of the nipple; the filter screen is pressed on the second annular step, so that the flow regulating orifice plate is limited between the filter screen and the first annular step; the pressure head is in press connection with the filter screen, and the filter screen is in press connection with the flow regulating pore plate.
9. The on-line maintenance operations box for space station payloads of claim 8, wherein the inside wall of the open end of the nipple is provided with internal threads, the outside wall of the ram is provided with first external threads, and the first external threads are in threaded connection with the internal threads of the nipple; the pressure head is internally provided with an operation through hole which is axially communicated, and the operation through hole is of a polygonal structure; an annular pressing edge is arranged at one end, close to the filter screen, of the pressure head, and the annular pressing edge is provided with a circular through hole; the circular through hole is communicated with the operation through hole; the periphery of the flow regulating orifice plate is in spaced arrangement or adaptive abutting joint with the step side wall of the first annular step, and the periphery of the filter screen is in spaced arrangement or adaptive abutting joint with the step side wall of the second annular step.
10. The on-line maintenance operation box for the space station effective load according to claim 8, wherein the short hard pipe further comprises a sleeve nut, an annular limiting rib is arranged on the outer side wall of the short pipe, and the annular limiting rib is abutted against one end face of the quick-break female head; the outer side wall of one end of the quick-break female head is provided with a second external thread, and the external nut is in threaded connection with the second external thread of the quick-break female head; one end of the outer sleeve nut is provided with an annular compression joint step, and the annular compression joint step is in compression joint with the annular limiting rib.
11. An on-line maintenance operation box for a space station payload according to claim 1, wherein the load-assist operation device includes a light strip, a replaceable camera support, a load connector, and six-axis manipulators, the light strip is mounted on both sides of the top of the operation area, the replaceable camera support is disposed at each of the diagonal positions of the top of the operation area, the six-axis manipulators are disposed at the top of the operation area, and the load connector is connected to the back panel of the operation box body in a sealing manner.
12. An on-line maintenance operations box for a space station payload according to claim 11, wherein the replaceable camera support includes a camera support and a camera support, the camera support includes a first camera support and a second camera support, the first camera support and the second camera support are fastened to each other to form a cylindrical structure with two open ends, an opening at one end of the cylindrical structure is used for clamping a camera assembly, and an opening at the other end of the cylindrical structure is provided with a support mounting surface; the camera support comprises a camera support body, a camera support body and a cylindrical structure, wherein the camera support body is arranged on the camera support body;
The camera support is internally provided with a cable channel, a first cable through hole is formed in the camera support mounting surface of the camera support, a cable assembly surface is further formed on the outer side wall of the camera support, a second cable through hole is formed in the cable assembly surface, and the first cable through hole and the second cable through hole are communicated with the cable channel;
three first mounting holes are formed in the camera support mounting surface, two first mounting holes are formed in the upper side of the camera support mounting surface, and one first mounting hole is formed in the lower side of the camera support mounting surface; three second mounting holes are formed in the mounting surface of the support of the cylindrical structure, are arranged in one-to-one correspondence with the three first mounting holes and are connected and fixed through connecting pieces;
the mounting surface of the box body is a plane or an L-shaped surface.
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