CN112249370B - Satellite heat pipe leveling device and satellite - Google Patents
Satellite heat pipe leveling device and satellite Download PDFInfo
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- CN112249370B CN112249370B CN202011181351.9A CN202011181351A CN112249370B CN 112249370 B CN112249370 B CN 112249370B CN 202011181351 A CN202011181351 A CN 202011181351A CN 112249370 B CN112249370 B CN 112249370B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/46—Arrangements or adaptations of devices for control of environment or living conditions
- B64G1/50—Arrangements or adaptations of devices for control of environment or living conditions for temperature control
- B64G1/506—Heat pipes
Abstract
The invention provides a satellite heat pipe leveling device and a satellite, wherein the satellite heat pipe leveling device comprises: a parking stand assembly; the base assembly is arranged on the parking frame assembly through an inclination angle adjusting structure, and the inclination angle adjusting structure is used for adjusting a relative inclination angle between the base assembly and the parking frame assembly; the base assembly is provided with a first installation part for installing the satellite load assembly and a second installation part for installing the radiation plate assembly; the heat pipe bracket component is installed on the base component through a height adjusting structure, and is used for supporting a first heat pipe included by the satellite load component and/or a second heat pipe included by the radiation plate component. The embodiment of the invention can effectively adjust the level between the lap joint heat pipes, ensure the mutual level between the lap joint heat pipes and effectively improve the working reliability of the heat pipes.
Description
Technical Field
The invention relates to the technical field of satellites, in particular to a satellite heat pipe leveling device and a satellite.
Background
As is well known, a heat pipe is widely used as an effective heat transfer element in a satellite heat dissipation system to ensure that a satellite load assembly works in a proper temperature range, and to avoid failure due to over-high or over-low temperature. In some applications, the satellite may need to overlap multiple heat pipes, that is, to transport heat from the satellite load assembly to the radiation plate for heat dissipation, due to the limitation of the installation layout of the single unit outside the satellite cabin.
However, when lap joint heat pipes are used for radiating the satellite load assembly, the problems of unsmooth working medium circulation and poor heat transfer efficiency caused by height difference among different heat pipes often occur.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a satellite heat pipe leveling device and a satellite, and solves the problems that when lap joint heat pipes are used for radiating a satellite load assembly, working medium circulation is not smooth due to height difference among different heat pipes, and heat transfer efficiency is poor in the prior art.
According to the satellite heat pipe leveling device provided by the embodiment of the invention, the satellite heat pipe leveling device comprises:
a parking stand assembly;
the base assembly is arranged on the parking frame assembly through an inclination angle adjusting structure, and the inclination angle adjusting structure is used for adjusting a relative inclination angle between the base assembly and the parking frame assembly; the base assembly is provided with a first installation part for installing the satellite load assembly and a second installation part for installing the radiation plate assembly;
the heat pipe bracket component is installed on the base component through a height adjusting structure, and is used for supporting a first heat pipe included by the satellite load component and/or a second heat pipe included by the radiation plate component.
The embodiment of the invention also provides a satellite, which comprises a satellite load assembly, a radiation plate assembly and the satellite heat pipe leveling device;
the satellite heat pipe leveling device comprises a base assembly, a leveling device and a leveling control device, wherein the base assembly comprises a first installation part and a second installation part; the satellite load assembly and the radiation plate assembly are respectively installed on the first installation part and the second installation part.
The satellite heat pipe leveling device provided by the embodiment of the invention comprises a parking frame assembly, a base assembly and a heat pipe support assembly, wherein the base assembly is used for mounting a satellite load assembly and a radiation plate assembly, and is mounted on the parking frame assembly through an inclination angle adjusting structure so as to realize the leveling adjustment between a first heat pipe included by the satellite load assembly and a second heat pipe included by the radiation plate assembly; in addition, the base component is also provided with a heat pipe support component with adjustable height so as to support at least one of the first heat pipe and the second heat pipe, thereby further realizing the horizontal adjustment between the heat pipes; based on the structure, the level between the lap joint heat pipes can be effectively adjusted, the mutual level between the lap joint heat pipes is ensured, and the working reliability of the heat pipes is effectively improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is an assembly schematic diagram of a satellite heat pipe leveling device, a satellite load assembly and a radiation plate assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a parking stand assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a base assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a heat pipe bracket assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a radiation plate assembly according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a satellite loading assembly in an embodiment of the invention;
fig. 7 is a schematic view of an assembly between a satellite and a vacuum tank according to an embodiment of the present invention.
The figures show that: the parking frame assembly comprises a parking frame assembly 1, a first nut 11, a first bolt 12, a foot support 13, a parking frame 14, a linear guide rail 15, a linear slider 16, a base assembly 2, a base frame 21, a first rod 211, a sub-frame 212, a second rod 213, a third rod 214, a load mounting bracket 22, a heat pipe bracket positioning plate 23, a radiant panel mounting base 24, a positioning lug 25, a heat pipe bracket assembly 3, a second bolt 31, a second nut 32, a third nut 33, a heat pipe support rod 34, a heat pipe support head 35, a satellite load assembly 4, a satellite load body 41, a first heat pipe 42, a radiant panel assembly 5, a second heat pipe 51, a foot support 52, a mounting back plate 53, a radiant panel 54, a gasket 55, a third bolt 56, a fourth bolt 57, a support frame 58 and a vacuum tank 6.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1, a satellite heat pipe leveling device according to an embodiment of the present invention includes:
a parking stand assembly 1;
the base assembly 2 is installed on the parking frame assembly 1 through an inclination angle adjusting structure, and the inclination angle adjusting structure is used for adjusting a relative inclination angle between the base assembly 2 and the parking frame assembly 1; the base assembly 2 is provided with a first mounting part for mounting a satellite load assembly 4 and a second mounting part for mounting a radiation plate assembly 5;
the heat pipe bracket assembly 3 is installed on the base assembly 2 through a height adjusting structure, and the heat pipe bracket assembly 3 is used for supporting the first heat pipe 42 included in the satellite load assembly 4 and/or the second heat pipe 51 included in the radiation plate assembly 5.
In this embodiment, the parking stand assembly 1 may be considered a basic support structure for supporting other components; while the base assembly 2 is primarily used to mount the satellite load assembly 4 and the radiant panel assembly 5.
The satellite loading assembly 4 comprises a satellite loading body 41 and a first heat pipe 42, wherein the satellite loading body 41 can be regarded as a main instrument or equipment for realizing a specific function in the satellite. The heat generated by the satellite load body during operation may have an effect on its normal operation, and therefore, the heat is transported by the heat pipes to the radiation plates 54 in the radiation plate assembly 5.
In the present embodiment, the heat pipe is divided into at least two sections, and since the heat pipes are usually connected to each other, through the division of specific connection positions, it can be simply considered as including the first heat pipe 42 and the second heat pipe 51, where the first heat pipe 42 can be considered as a component of the satellite load assembly 4, and the second heat pipe 51 can be considered as a component of the radiation plate assembly 5, which are respectively used for connecting the satellite load body 41 and the radiation plate 54. Of course, as mentioned above, the actual number of the heat pipes may be three or more, for example, the second heat pipe 51 may also be actually composed of a preset heat pipe fixedly connected to the radiation plate 54, and another lap joint heat pipe for connecting the preset heat pipe with the first heat pipe 42; for simplicity of illustration, the heat pipe is not exhaustive here.
Because there may be a certain height installation deviation between the satellite load assembly 4 and the radiation plate assembly 5, after the first heat pipe 42 and the second heat pipe 51 are connected, there may be a situation that the level does not meet the requirement, or there is a large height drop, so that the working medium in the heat pipes is not circulated smoothly, the normal heat transfer of the heat pipes is affected, and adverse effects are brought to the normal work or test experiment of the satellite load body 41. In the embodiment, to solve these problems, on one hand, the base assembly 2 is mounted on the parking rack assembly 1 through the inclination angle adjusting structure, and on the other hand, the heat pipe rack assembly 3 capable of adjusting the height is also arranged on the extending path of the heat pipe; the level between the heat pipes is adjusted by two adjusting structures.
The tilt angle adjusting structure can be an existing integrated tilt angle adjuster, or can be a structure which can be independently arranged and can bring tilt angle change; for example, for the latter, there may be one or more independent linear adjustment structures, such as screw structures, linear motors, etc., which are used to connect the parking stand assembly 1 with the base assembly 2, and the relative inclination angle between the parking stand assembly 1 and the base assembly 2 is changed by the change of the length of the linear adjustment structures. Because the angle of the parking frame component 1 relative to the horizontal plane is relatively fixed, the angle of the base component 2 relative to the horizontal plane is actually adjusted through the inclination angle adjusting structure, and then the level between the heat pipes is correspondingly adjusted.
For the heat pipe bracket assembly 3, on one hand, the height adjustment function of the heat pipe can be achieved, and on the other hand, when the length of the heat pipe is longer, the effect of reducing the flexible deformation of the heat pipe can be actually achieved. The height adjusting function can be realized based on a thread structure or a linear motor and the like, and can be selected according to actual needs. In addition, the number of the heat pipe bracket assemblies 3 can be one or more; the position of the heat pipe support assembly 3 for supporting the heat pipe may be for supporting the first heat pipe 42, for supporting the second heat pipe 51, or for supporting both of them, which is not specifically limited herein.
The satellite heat pipe leveling device provided by the embodiment of the invention comprises a parking frame assembly 1, a base assembly 2 and a heat pipe frame assembly 3, wherein the base assembly 2 is used for installing a satellite load assembly 4 and a radiation plate assembly 5, and the base assembly 2 is installed on the parking frame assembly 1 through an inclination angle adjusting structure, so that the leveling between a first heat pipe 42 included in the satellite load assembly 4 and a second heat pipe 51 included in the radiation plate assembly 5 is realized; in addition, a height-adjustable heat pipe bracket assembly 3 is further arranged on the base assembly to support at least one of the first heat pipe 42 and the second heat pipe 51, so as to further realize horizontal adjustment between the heat pipes; based on the structure, the level between the lap joint heat pipes can be effectively adjusted, the mutual level between the lap joint heat pipes is ensured, and the working reliability of the heat pipes is effectively improved.
In one example, the first heat pipe 42 and the second heat pipe 51 are detachably connected, so that in practical applications, the satellite load assembly 4 and the radiant plate assembly 5 can be separately stored or transported before the entire satellite heat pipe leveling device is assembled, thereby saving storage or transportation space.
Optionally, the tilt adjustment structure comprises a plurality of threaded adjustment structures;
each thread adjusting structure comprises a first bolt 12 and a first nut 11, a first end of the first bolt 12 is fixedly connected to the parking stand assembly 1, and the first nut 11 is used for fixing the base assembly 2.
Referring to fig. 2, in the screw adjusting structure included in the tilt angle adjusting structure, one end of the first bolt 12 may be fixed on the parking rack assembly 1 by welding or screwing, and the other end of the first bolt 12 may be provided with one or more first nuts 11, the first nut 11 is mainly used for supporting or fixing the base assembly 2, and by rotating the first nut 11, the first nut 11 may move along the length direction of the first bolt 12, so as to drive the base assembly 2 to generate corresponding position change.
The inclination angle adjusting structure comprises a plurality of thread adjusting structures, that is, the thread adjusting structures can be connected to different positions of the base assembly 2, and taking the number of the thread adjusting structures as 3 as an example, based on the principle that planes are determined by three points, the inclination angle of the whole base assembly 2 relative to the parking stand assembly 1 can be determined under the condition that the positions of three groups of first nuts 11 are determined; the above-mentioned adjustment of the inclination angle can be achieved by adjusting the height of the first nut 11. Likewise, when the number of the screw thread adjusting structures is other number, the above-described adjustment of the inclination angle can also be achieved due to the position change of the first nut 11.
In this embodiment, adopt a plurality of screw thread to adjust the structure, can realize base subassembly 2's high position and the electrodeless regulation of inclination, improved the regulation accuracy at height and inclination.
In some possible embodiments, the number of the thread adjusting structures may be 1, and the parking stand assembly 1 and the base assembly 2 are cooperatively connected by using a fixed supporting structure, a ball-and-socket joint rod and the like, and fine adjustment of the inclination angle of the base assembly 2 may also be achieved by adjusting the first nut.
Optionally, the base assembly 2 includes a base frame 21, and a load mounting bracket 22, a heat pipe bracket positioning plate 23 and a radiation plate mounting base 24 fixedly mounted on the base frame 21;
As shown in fig. 3, in the present embodiment, the base frame 21 can be regarded as a main body frame of the base assembly 2, and is used for providing mounting positions of, for example, the load mounting bracket 22, the heat pipe bracket positioning plate 23, and the radiation plate mounting base 24, so as to ensure relative fixation of the positions of these components, and improve the structural stability of the base assembly 2 after being integrally assembled.
Referring to fig. 3, in an example, the base frame 21 includes a first rod 211, a sub-frame 212 connected to a first end of the first rod 211, a second rod 213 connected to the sub-frame 212, and a third rod 214 for connecting the second rod 213 and the sub-frame 212;
the second rod body 213 is parallel to the first rod body 211, and extends from the sub-frame 212 to a side where a second end of the second rod body 213 is located, the heat pipe bracket positioning plate 23 is disposed between the first rod body 211 and the second rod body 213, the first end and the second end are two opposite ends of the first rod body 211 along a length extending direction, the load mounting bracket 22 is fixedly mounted on the sub-frame 212, and the radiation plate mounting base 24 is fixedly mounted at the second end of the first rod body 211.
With continued reference to fig. 3, in this example, the sub-frame 212 has a substantially rectangular structure, the length extending direction of the sub-frame 212 forms an included angle with the length extending direction of the first rod 211, the second rod 213 is connected to the sub-frame 212 and is consistent with the extending direction of the first rod 211, so as to form a gap between the first rod 211 and the second rod 213, and both the heat pipe support positioning plate 23 and the radiation plate mounting base 24 can be mounted in the gap, which helps to increase the assembling strength by fixing the two sides, and on the other hand, makes the layout of the components more compact.
The third rod 214 connects the sub-frame 212 and the second rod 213, so that the base frame 21 has an overall triangular structure, which is helpful to improve the stability of the base frame 21.
In one example, a plurality of mounting positions are provided on the heat pipe support positioning plate 23, and the heat pipe support assembly 3 can be selectively mounted on any one or any plurality of the mounting positions, so that the position of the heat pipe support assembly 3 can be adjusted according to the extending direction of the heat pipe, and the support requirement of the heat pipe is met. The mounting position may be a mounting hole, a snap, a pre-welded screw, or the like, and is not limited in this respect.
Optionally, a positioning lug 25 is arranged on the rod body of the sub-frame 212 far away from the second end, and a strip-shaped hole is arranged in the positioning lug 25;
at least one of said first bolts 12 is fitted into a strip-shaped hole in a matching positioning lug 25.
In this embodiment, through the setting that has the location lug 25 in bar hole, can be so that assemble base subassembly 2 to the in-process of parking frame subassembly 1, can be to base subassembly 2 about the position, also be exactly carry out the adjustment of certain extent along bar hole length extending direction's position to help when the assembly, adapt to some machining error or assembly error, improve the assembly accuracy between parking frame subassembly 1 and the base subassembly 2.
Furthermore, the satellite load assembly 4 is generally located on the subframe 212, and the location of the locating lug 25 may be considered to be outside the satellite load assembly 4, i.e. as indicated above, there is a first bolt 12 located outside the satellite load assembly 4.
In one example, by properly arranging the positions of the rest of the first bolts 12, the gravity center of the satellite load assembly 4 can be located in the area formed by the enclosing of the plurality of first bolts 12 in the vertical direction, and thus, the parking stability and reliability of the satellite load assembly 4 can be ensured.
Referring to fig. 3, in an example, the number of the positioning lugs 25 is two, and the positioning lugs 25 are located on the rod body of the sub-frame 212 far from the second end, and each positioning lug 25 corresponds to one first bolt 12; the third first bolt 12 may be connected to a predetermined plate, and the predetermined plate and the heat pipe bracket positioning plate 23 may be sequentially arranged in the length direction of the first rod 211, and may be closer to the second end of the first rod 211 than the heat pipe bracket positioning plate 23; in this way, the three first bolts 12 may be enclosed to form a triangular area, and the projection of the center of gravity of the satellite load assembly 4 on the plane of the triangular area is located in the triangular area, so as to ensure the parking stability and reliability of the satellite load assembly 4.
Optionally, the height adjusting structure comprises a second bolt 31, a second nut 32 and a third nut 33, wherein the second nut 32 and the third nut 33 are oppositely arranged in the length direction of the second bolt 31;
the second nut 32 is used to fix the second bolt 31 to the base assembly 2, and the third nut 33 is used to fix the second bolt 31 to the heat pipe bracket assembly 3.
Referring to fig. 4, in the present embodiment, the height adjusting structure may be a screw thread to adjust the height, and specifically, the second nut 32 of the height adjusting structure is used to fix the second bolt 31 and the base assembly 2. In practical applications, the relative position between the second bolt 31 and the base assembly 2 can be regarded as being constant, and the third nut 33 can be adjusted along the length direction of the second bolt 31. The third nut 33 may be used to fix or support the heat pipe bracket assembly 3, and when the third nut 33 moves, the third nut may drive the heat pipe bracket assembly 3 to move correspondingly in the length direction of the second bolt 31, so that the height of the heat pipe bracket assembly 3 relative to the base assembly 2 may be changed. And the heat pipe bracket assembly 3 is used for supporting the heat pipes, and accordingly, the adjustment of the level between the heat pipes can be realized.
In the embodiment, the height adjusting structure in the form of threads can realize stepless adjustment of the heat pipe bracket assembly 3 and the heat pipe in the height position, so that horizontal adjustment between the heat pipes with higher adjusting precision is facilitated.
Optionally, the heat pipe bracket assembly 3 includes a heat pipe support rod 34 and a heat pipe support head 35, a first end of the heat pipe support rod 34 is connected to the second bolt 31, a second end of the heat pipe support rod 34 is fixedly connected to a first end of the heat pipe support head 35, and a second end of the heat pipe support head 35 forms a support tip.
Referring to fig. 4, in this embodiment, the heat pipe supporting head 35 has a supporting tip, and when the heat pipe is supported, the supporting tip and the heat pipe are in a line contact manner, so that on one hand, it is ensured that the heat pipe can be horizontally adjusted, and on the other hand, in practical application, the heat pipe is not affected to be coated with a film, so that the heat leakage prevention performance of the heat pipe is effectively ensured, and the working reliability of the heat pipe is improved.
Optionally, the parking stand assembly 1 comprises a parking stand frame 14, a foot support 13, a linear guide 15 and a linear slider 16;
the foot supports 13 and the linear guide rails 15 are respectively installed at two ends of the parking frame 14 along the height direction, the linear sliding blocks 16 are slidably installed on the linear guide rails 15, and the base assembly 2 is installed on the linear sliding blocks 16 through an inclination angle adjusting structure.
Referring to fig. 2, in the present embodiment, the parking stand frame 14 may be regarded as a main body frame of the parking stand assembly 1, and is used for mounting other components such as the foot supports 13, the linear guide rails 15, and the like, so that the mounting stability of each component can be effectively ensured. The foot supports 13 may then be used to support the docking cradle frame 14 and may be part of the overall satellite heat pipe leveling device to be connected to external structures.
In this embodiment, a combination structure of the linear guide 15 and the linear slider 16 is adopted, and the linear slider 16 is used for being fixedly connected with the base assembly 2, so that the base assembly 2, and the heat pipe bracket assembly 3, the satellite load assembly 4 and the radiation plate assembly 5 which are installed on the base assembly 2 can synchronously slide relative to the linear guide 15. Thus, in some application occasions, the parking stand assembly 1 can be pre-installed in equipment such as a tank body, the satellite load assembly 4 and the like can be assembled outside the tank body and then pushed into the tank body through the sliding linear sliding block 16, and assembly convenience is greatly improved.
The embodiment of the invention also provides a satellite, which comprises a satellite load assembly 4, a radiation plate assembly 5 and the satellite heat pipe leveling device;
the base assembly 2 of the satellite heat pipe leveling device comprises a first installation part and a second installation part; satellite load subassembly 4 the radiation plate subassembly 5 install respectively in first installation department on the second installation department.
It is easy to understand that the satellite provided in the embodiment of the present invention is a satellite including the above satellite heat pipe leveling device, and the embodiments of the satellite heat pipe leveling device are all applicable to the satellite provided in the embodiment and can achieve the same technical effects, and details are not described herein again.
Optionally, the radiation plate assembly 5 includes a foot bracket 52, a mounting back plate 53 and a radiation plate 54, the mounting back plate 53 is fixedly mounted on the second mounting portion through the foot bracket 52, and the radiation plate 54 is mounted on the mounting back plate 53 through a support bracket 58.
In a specific application scenario, as shown in fig. 5, the foot support 52 is fastened and mounted to the second mounting portion of the base assembly 2 by a third bolt 56, and a gasket 55 is further disposed between the foot support and the second mounting portion; the mounting back plate 53 may be fixedly connected to the foot support 52, and the connection may be a fastener connection or a welding connection, which is not limited in this time.
The support bracket 58 has one end fixed to the mounting back plate 53 and the other end connected to the radiation plate 54 by a fourth bolt 57. A second heat pipe 51 is connected to the radiation plate 54, and the second heat pipe 51 can be connected to the first heat pipe 42 of the satellite loading assembly 4 to conduct heat at the satellite loading body 41 to the radiation plate 54 for heat dissipation.
In addition, since the mounting back plate 53 is connected to the radiation plate 54 through the support frame 58, a certain gap is actually formed between the mounting back plate and the radiation plate 54, thereby helping to ensure the heat dissipation effect of the back surface of the radiation plate 54 and improving the overall heat dissipation efficiency of the radiation plate 54.
A specific application example of the satellite according to the embodiment of the present invention is described below, in which components of each component in the satellite according to the above embodiment are subdivided.
Referring to fig. 1 to 6, the satellite in this embodiment mainly includes a parking frame assembly 1, a base assembly 2, a heat pipe support assembly 3, the satellite loading assembly 4, and the radiation plate assembly 5.
As shown in fig. 2, the parking stand assembly 1 is mainly composed of 4 foot supports 13, 1 parking stand frame 14, 6 first nuts 11, 2 linear sliders 16, 2 linear guide rails 15, three first bolts 12 and corresponding fasteners.
Q235 steel pipes with the diameter of 50mm multiplied by 10mm are adopted for the foot supports 13, and the parallelism between 4 groups of foot supports 13 is better than 0.1mm.
The parking frame 14 is formed by welding rectangular steel pipes with the size of 60mm multiplied by 4mm, the external dimension is 1250mm multiplied by 950mm, the upper surface of the parking frame 14 is welded with the longitudinal linear guide rail 16, the lower surface is welded with the foot supports 13 and the reinforcing embedded parts, the integral flatness of each mounting surface is superior to 0.1mm through composition processing, and the mounting holes are all processed in a combined mode to guarantee the precision.
The length of the linear guide rail 15 is 1330mm, the linear guide rail 15 is arranged on a left cross beam and a right cross beam of the parking frame 14, the parallelism of the two linear guide rails 15 is superior to 0.03mm, and the two linear sliding blocks 16 are respectively arranged on the two linear guide rails 14 and can slide back and forth along the linear guide rails 14.
The three first bolts 12 are M10 × 100mm in size and made of 304 stainless steel, and each first bolt 12 is welded to the upper surface of the linear slider 16 in the reverse direction and is provided with 2 first nuts 11 of corresponding size.
As shown in fig. 3, the base assembly 2 is mainly composed of 2 positioning lugs 25, 2 load mounting brackets 22, 3 heat pipe bracket positioning plates 23, 1 radiant panel mounting base 24, and 1 base frame 21 and corresponding fasteners.
The base frame 21 is formed by welding rectangular steel pipes with the size of 50mm multiplied by 30mm multiplied by 4mm, the overall flatness of each mounting surface is better than 0.1mm through composition processing, and the mounting holes are all processed in a combined mode to guarantee accuracy.
The positioning lugs 25 are welded on the side wall of the base frame 21 and symmetrically distributed along the width direction, strip-shaped holes 50 multiplied by 11mm are formed in the positioning lugs 25 and are used for being connected and fixed with two first bolts 12, a level gauge is placed on the base frame 21 when the connection and the fixation are carried out, and the overall level of the base frame 21 is realized by stepless fine adjustment of the height of the corresponding first nut 11 on each first bolt 12.
The load mounting brackets 22 are symmetrically welded in the base frame 21 along the width direction, the distance between the two groups of load mounting brackets 22 is 345mm, the parallelism is better than 0.1mm, and the upper surface is provided with M10 threaded holes.
The heat pipe support positioning plate 23 is made of steel plates with the width of 50mm and the thickness of 10mm, the steel plates are welded in the cross beam grooves of the base frame 21 respectively, the upper surface of the heat pipe support positioning plate is flush with the upper surface of the cross beam, the flatness of the heat pipe support positioning plate is superior to 0.03mm, the heat pipe support positioning plate 23 is provided with row holes, and the hole distance is 75mm.
The radiation plate mounting base 24 is formed by splicing a mounting platform and a platform support, is welded in a cross beam groove of the base frame 21 through a rectangular steel pipe with the height of 300mm and the diameter of 50mm multiplied by 30mm multiplied by 4mm, has the upper surface of the mounting platform with the diameter of 358mm multiplied by 160mm multiplied by 10mm, has the flatness superior to 0.03mm, and is respectively provided with M8 threaded through holes at four corners.
The number of the heat pipe bracket assemblies 3 is two, as shown in fig. 4, each heat pipe bracket assembly 3 mainly comprises 1 second bolt 31, 1 second nut 32, 2 third nuts 33, 1 heat pipe support rod 34, 1 heat pipe support head 35, and corresponding fasteners. Wherein, 2 pieces of the third nut 33 can be used as the adjusting nut and the locking nut, respectively.
The specification of the second bolt 31 is M10 multiplied by 100mm, and the second bolt is reversely installed in the row holes of the heat pipe bracket positioning plate 23 and locked by a second nut 32.
2 third nuts 33 and heat pipe support rods 34 are connected in series on the second bolt 31, the specifications of the third nuts 33 are all M10, the enveloping size of the heat pipe support rods 34 is 30mm multiplied by 267mm, the heat pipe support rods are composed of two fixing bottom plates and a flat plate support, a through hole with the size of M10 is formed in the center of the lower fixing bottom plate, threaded holes with the size of M6 are formed in four corners of the upper fixing bottom plate, the support and the height stepless adjustment of the heat pipe support rods 34 can be realized by adjusting the lifting of adjusting nuts in the third nuts 33, and locking nuts in the third nuts 33 are installed on the lower fixing bottom plate of the heat pipe support rods 34 and used for locking the bottoms of the heat pipe support rods 34.
2 individual heat pipe supports head 35 envelope size and is 50mm 30mm 20mm, the top is the triangular prism shape, both sides are respectively opened 2 size and are M6's screw hole, thereby it is fixed with heat pipe support head 35 to be connected through the screw hole of fixed film on bolt and the heat pipe bracing piece 34, and cooperation laser level meter measurement regulation nut's lift realizes that two heat pipe support head 35 tops are horizontal each other, and then support first 35 top line contact through overlap joint heat pipe and have both guaranteed the level of overlap joint heat pipe and still can not influence overlap joint heat pipe film cladding simultaneously, thereby guarantee that overlap joint heat pipe during operation does not leak heat and reliability.
The lap heat pipe here mainly refers to the second heat pipe 51 connected to the radiation plate 54, but may also refer to the first heat pipe 42 connected to the satellite load body 41, or both.
As shown in fig. 5, the radiant panel assembly 5 mainly comprises a second heat pipe 51, 4 gaskets 55, 2 foot supporting frames 52, 1 set of third bolts 56, 1 radiant panel 54, 1 mounting back panel 53, 8 supporting frames 58, 8 fourth bolts 57 and corresponding fasteners.
The foot brackets 52 are stainless steel frames with the length of 150mm multiplied by 30mm multiplied by 10mm, threaded holes with the diameter of M8 are formed in two sides along the length direction, the foot brackets are serially communicated with the gasket 55 and are installed on the radiant panel installation base 24 through third bolts 56, and the parallelism of the two groups of foot brackets 52 is better than 0.03mm.
The mounting back plate 53 is a stainless steel plate with the thickness of 420mm × 410mm × 4mm, and is vertically mounted on the symmetrical axial surface of the foot support frame 52, and reinforcing ribs are welded on the front and back surfaces of the lower side of the mounting back plate and connected with the radiation plate mounting base 24.
The support frames 58 are light rectangular blocks with the length of 40mm, one ends of the support frames are welded on the surface of the mounting back plate 53 and are evenly distributed, the parallelism of the eight groups of support frames 58 is better than 0.03mm, and M6 threaded holes with the depth of 10mm are formed in the centers of the other ends of the support frames.
The radiation plate 54 is 320mm multiplied by 250mm multiplied by 5mm in size, a plurality of M6 threaded through holes are formed in the edge of the plate and fixed on the support frame 58 through the fourth bolts 57, the verticality is better than 0.03mm, and the back face is tightly attached to a fin at one end of the second heat pipe 51.
As shown in fig. 6, the satellite load assembly 6 is mainly composed of 1 satellite load body 41 and 1 first heat pipe 42 and corresponding fasteners.
The enveloping size of the satellite load body 41 is 460 mm × 360mm × 350mm, a threaded hole is formed in the bottom of the satellite load body and fixed in the center of the load mounting bracket 22 through a bolt, and a through hole is formed in the right side of the satellite load body.
One end of the first heat pipe 42 is installed in the inner cavity of the satellite load body 41, the other end of the first heat pipe extends out of the through hole in the right side of the satellite load body 41, and the two sides of the fin are provided with holes in rows for overlapping with the second heat pipe 51.
Of course, the design dimensions of the above components are all exemplified, and in practical applications, the design dimensions can be adjusted according to actual requirements.
With reference to fig. 7, a satellite assembly process provided in an embodiment of the present invention is described, which specifically includes the following steps:
step 1: when a satellite is loaded into the vacuum tank 6 shown in fig. 7, the linear slider is pulled out, the base assembly and the above assemblies (including the satellite load assembly and the radiation plate assembly) which are assembled outside the tank are mounted on the first bolt, and the base assembly is adjusted to be aligned in the front-back and left-right positions and then locked.
Step 2: thereby cooperate 3 first nuts of group of spirit level adjustment to realize the whole level of base subassembly and locking.
And step 3: and adjusting the front and rear positions of the heat pipe bracket assembly according to the position of the lapped heat pipe.
And 4, step 4: and the third nuts of the 2 groups of heat pipe supports are adjusted to be lifted to the same height by matching with the gradienter, so that the level and the locking of the straight-line sections of the overlapped heat pipes are realized.
And 5: after the parts are ensured to be locked, the linear sliding block is pushed to return to the original position, as shown in figure 7, the tank door is closed, and the operation is finished.
The embodiment of the invention can realize high-precision assembly of the satellite load lapped heat pipes, can realize stepless fine adjustment of the heights of the two lapped heat pipes in the assembly process, ensures the mutual level of the lapped heat pipes, and effectively improves the working reliability of the heat pipes. The longitudinal linear guide rail is adopted for canning, the operation is simple, the satellite load can be fed and the horizontal adjustment operation can be completed by only 1-2 persons, no interference or collision is ensured in the installation process, and the working efficiency can be effectively improved. The gravity center of the satellite load can be ensured to be within the triangular range of connection of the three bolts, and meanwhile, the support bolts are locked, so that the stability and the reliability of the satellite load parking in the test process are ensured. Meanwhile, the embodiment of the invention has simple structure and convenient manufacture, can be produced in batch, and can meet the use requirements of satellites of various types and the use requirements under different working environments through simple adaptive modification.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (7)
1. A satellite heat pipe leveling device, comprising:
a parking stand assembly;
the base assembly is arranged on the parking frame assembly through an inclination angle adjusting structure, and the inclination angle adjusting structure is used for adjusting a relative inclination angle between the base assembly and the parking frame assembly; the base assembly is provided with a first mounting part for mounting the satellite load assembly and a second mounting part for mounting the radiation plate assembly;
the heat pipe bracket assembly is arranged on the base assembly through a height adjusting structure and is used for supporting a first heat pipe included by the satellite load assembly and/or a second heat pipe included by the radiation plate assembly;
the inclination angle adjusting structure comprises a plurality of thread adjusting structures;
each thread adjusting structure comprises a first bolt and a first nut, the first end of the first bolt is fixedly connected to the parking frame assembly, and the first nut is used for fixing the base assembly;
the base assembly comprises a base frame, and a load mounting bracket, a heat pipe bracket positioning plate and a radiation plate mounting base which are fixedly mounted on the base frame;
the load mounting bracket and the radiation plate mounting base respectively form the first mounting part and the second mounting part, and the heat pipe bracket assembly is mounted on the heat pipe bracket positioning plate;
the base frame comprises a first rod body, a sub-frame connected to the first end part of the first rod body, a second rod body connected to the sub-frame, and a third rod body used for connecting the second rod body and the sub-frame;
the second rod body is parallel to the first rod body and extends from the sub-frame to one side where a second end portion of the second rod body is located, the heat pipe support positioning plate is arranged between the first rod body and the second rod body, the first end portion and the second end portion are two end portions, opposite to each other, of the first rod body in the length extending direction, the load mounting support is fixedly mounted on the sub-frame, and the radiation plate mounting base is fixedly mounted at the second end portion of the first rod body.
2. A satellite heat pipe leveling device according to claim 1, wherein a positioning lug is disposed on the rod body of the sub-frame away from the second end, and a strip-shaped hole is disposed in the positioning lug;
at least one of the first bolts fits into a slotted hole in a mating locating lug.
3. The satellite heat pipe leveling device according to claim 1, wherein the height adjusting structure includes a second bolt, a second nut, and a third nut, the second nut and the third nut being arranged opposite to each other in a length direction of the second bolt;
the second nut is used for fixing the second bolt and the base assembly, and the third nut is used for fixing the second bolt and the heat pipe bracket assembly.
4. A satellite heat pipe leveling device according to claim 3, wherein the heat pipe bracket assembly includes a heat pipe support bar and a heat pipe support head, a first end of the heat pipe support bar is connected to the second bolt, a second end of the heat pipe support bar is fixedly connected to the first end of the heat pipe support head, and a second end of the heat pipe support head forms a support tip.
5. The satellite heat pipe leveling device of claim 1, wherein the parking stand assembly comprises a parking stand frame, a foot support, a linear guide rail, and a linear slide;
the foot supports and the linear guide rails are respectively installed at two ends of the parking frame along the height direction, the linear sliding blocks are slidably installed on the linear guide rails, and the base assembly is installed on the linear sliding blocks through the inclination angle adjusting structure.
6. A satellite comprising a satellite payload assembly, a radiant panel assembly and a satellite heat pipe leveling device as claimed in any one of claims 1 to 5;
the base assembly comprises a first installation part and a second installation part; the satellite load assembly and the radiation plate assembly are respectively installed on the first installation part and the second installation part.
7. The satellite of claim 6, wherein the radiant panel assembly includes a foot brace, a mounting back panel, and a radiant panel, the mounting back panel being securely mounted to the second mounting portion by the foot brace, the radiant panel being mounted to the mounting back panel by a support bracket.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011181351.9A CN112249370B (en) | 2020-10-29 | 2020-10-29 | Satellite heat pipe leveling device and satellite |
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| CN202011181351.9A CN112249370B (en) | 2020-10-29 | 2020-10-29 | Satellite heat pipe leveling device and satellite |
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