CN113252315A - Follow-up gravity unloading suspension device - Google Patents
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- CN113252315A CN113252315A CN202110550820.8A CN202110550820A CN113252315A CN 113252315 A CN113252315 A CN 113252315A CN 202110550820 A CN202110550820 A CN 202110550820A CN 113252315 A CN113252315 A CN 113252315A
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Abstract
The invention discloses a follow-up gravity unloading suspension device, and belongs to the field of space lens ground microgravity simulation experiments. The invention comprises a two-degree-of-freedom suspension bracket and an adjustable suspension device. The two-degree-of-freedom suspension bracket comprises a suspension bracket, a horizontal rotating guide rail and a horizontal sliding guide rail. The adjustable suspension device comprises a fixed pulley, a movable pulley, a connecting rope, a balancing weight and a space lens. According to the motion process of assembling and splicing the space lens ground simulation, the counterweight block unloaded by gravity moves along the horizontal rotating guide rail and the horizontal sliding guide rail in a follow-up mode to realize two-degree-of-freedom motion in the horizontal direction, the motion range is large, the assembly process is adapted, the gravity unloading precision is high, and the micro-gravity simulation effect is closer to the real state of the space lens on-rail assembly work. The invention can meet the microgravity simulation requirements of space lenses with different numbers of gravity unloading points and different gravity positions, can adapt to space lenses with different sizes, can well follow the assembling and splicing process of the space lenses, and has good adaptability.
Description
Technical Field
The invention relates to a follow-up gravity unloading suspension device, in particular to a follow-up gravity unloading suspension device for a space lens ground microgravity simulation experiment, and belongs to the field of space lens ground microgravity simulation experiments.
Background
With the increasing size and complexity of space missions, satellites tend to carry more and larger payloads, such as advanced large-aperture space telescopes composed of space lenses, and the functional requirements are becoming more and more strict. Therefore, the experimental device required for simulating the ground microgravity during the assembly of the space lens is more important. At present, the ground microgravity simulation experiment of the space lens mainly comprises the following steps: passive follow-up gravity unloading suspensions and active follow-up gravity unloading suspensions. The active follow-up gravity unloading suspension has the problems of high bandwidth, good rapidity, complex configuration, slow response speed, complex control algorithm and the like; the passive follow-up gravity unloading suspension device has simple structure, can realize the microgravity simulation of the space lens without a complex control algorithm and follow up along with the assembly process, and has high gravity unloading precision. The counterweight passive follow-up gravity unloading suspension has the advantages of large stroke in the vertical direction, simple structure, high gravity unloading precision and wide application.
However, because the motion of the space lens in the ground simulation assembly is complex, and the size range is also large, when the ground microgravity simulation experiment of the space lens is performed, the conventional space lens counterweight passive follow-up gravity unloading suspension device can only move along a single fixed guide rail, and the control of the space lens in the assembly process is complex, and the gravity unloading precision is not high. In addition, the existing space lens counterweight passive follow-up gravity unloading suspension device has poor adaptability, cannot simultaneously realize space lens follow-up along with the assembly process and complete the assembly and splicing tasks of a complete telescope, and the like, and has a plurality of problems which are not well solved, so that the micro-gravity simulation device has higher requirements on the ground simulation assembly and splicing process of the space lens.
Disclosure of Invention
The invention discloses a follow-up gravity unloading suspension device, which aims to solve the technical problems that: the utility model provides a follow-up gravity uninstallation hanging device for space lens ground microgravity simulation experiment, according to the motion process of space lens ground simulation equipment concatenation, the balancing weight of gravity uninstallation can follow-up formula along the motion of horizontal rotation guide rail and horizontal slip guide rail two degrees of freedom motion in the horizontal direction, the motion range is big, adapt to the equipment process, rather than along irregular or single fixed orbital motion, the precision of gravity uninstallation is high, the effect of microgravity simulation more is close the true state of space lens on-orbit equipment work. The invention can meet the microgravity simulation requirements of space lenses with different numbers of gravity unloading points and different gravity positions, can also adapt to space lenses with different sizes, and can well follow the assembling and splicing process of the space lenses with good adaptability.
The purpose of the invention is realized by the following technical scheme.
The invention discloses a follow-up gravity unloading suspension device which comprises a two-degree-of-freedom suspension bracket and an adjustable suspension device, wherein the two-degree-of-freedom suspension bracket comprises a suspension bracket, a strut fixing part, a vertical strut, a horizontal rotating guide rail, a horizontal sliding guide rail and a rolling bearing; the adjustable suspension device comprises a fixed pulley, a movable pulley, a flexible connecting rope, a balancing weight and a space lens. The ground microgravity simulation experiment object is a space lens. The balancing weight is used for unloading the space lens by gravity. The suspension bracket is used for supporting and protecting the whole gravity unloading device. The horizontal rotating guide rail and the horizontal sliding guide rail generate two degrees of freedom in the horizontal direction, and the space lens can rotate and slide in the horizontal direction without friction in the assembling process through a rolling bearing in the guide rail. The lower end of the horizontal sliding guide rail is connected with the fixed pulley through the sliding block, the flexible connecting rope penetrates through the fixed pulley, one end of the flexible connecting rope is connected with the balancing weight, and the other end of the flexible connecting rope is connected with the movable pulley, so that gravity unloading is completed by the balancing weight with half the mass of the space lens. The lower end of the movable pulley is connected with a gravity unloading point on the space lens, the mass of the balancing weight and the position layout of the horizontal rotating guide rail on the suspension bracket are adjusted, and the gravity unloading of the whole space lens along with the assembling process is completed.
Preferably, the suspension bracket is made of industrial aluminum profiles. The industrial aluminum profile is convenient to process, wide in application, low in manufacturing cost, firm and reliable, can be used as a high-strength working equipment frame, and can improve the load capacity of the follow-up gravity unloading suspension device.
Preferably, the two-degree-of-freedom suspension bracket comprises a suspension bracket, a strut fixing piece, a horizontal rotating guide rail, a horizontal sliding guide rail and a rolling bearing, and the rolling bearing is preferably a deep groove ball bearing. The deep groove ball bearing is used for the horizontal rotating guide rail and the horizontal sliding guide rail to complete frictionless movement, and frictionless follow-up assembly of the space lens is achieved.
Preferably, the horizontal rotating guide rail rotates along the vertical support column, the vertical support column is installed above the suspension support by the support column fixing piece, so that the size of the suspension support is not limited, preferably, the size of the suspension support is set according to the size, the mass and the motion range of the suspended space lens, the size comprises length, width and height, and the space lens follow-up gravity unloading suspension device is suitable for the space lens with small size and small range, especially suitable for the tidying unloading of the space lens with large size, the load capacity is improved, and the high-precision ground microgravity simulation of the on-track assembling work of the space lens with large size is realized.
Preferably, the number and the layout of the horizontal rotating guide rails and the horizontal sliding guide rails are adjustable according to the size, the quality and the assembly requirement of the suspended space lens, so that the suspension requirement of different types of space lenses in a simulated assembly state is met, and the precision and the accuracy of a simulation test are effectively ensured.
For convenience of processing and assembly and improvement of stability of the adjustable suspension device, preferably, the fixed pulley is fixed below the horizontal sliding guide rail by a fixed pulley fixing piece, and the movable pulley is fixedly connected with the suspended space lens by the fixing piece.
Preferably, the adjustable suspension device comprises a flexible connecting rope, one end of the flexible connecting rope is connected with the balancing weight, the other end of the flexible connecting rope is connected with the movable pulley, and the space lens is connected to the lower end of the movable pulley; or one end of the space lens is connected with the balancing weight and the other end of the space lens is connected with the suspended space lens. Therefore, different hanging modes can be selected according to the size and the mass of the suspended space lens, so that gravity unloading can be realized more accurately. Moreover, the material and the size of the flexible connecting rope can be adjusted according to the experiment requirements.
Preferably, the space lens can be provided with different gravity unloading points, and then is connected with the movable pulley through the flexible connecting rope to realize gravity unloading.
Preferably, the space lens is assembled and spliced through the assembling follow-up device, when the follow-up device moves at a constant speed or approximately at a constant speed, the space lens can be always equal to the tension of the flexible connecting rope in gravity, and the gravity unloading precision is high.
The invention discloses a working method of a follow-up gravity unloading suspension device, which comprises the following steps: according to the ground microgravity simulation experiment requirements during the ground assembly simulation of the space lens, the suspension bracket is arranged on the ground to support and protect the whole follow-up gravity unloading device, and the rolling bearings in the horizontal rotating guide rail and the horizontal sliding guide rail realize frictionless follow-up motion to complete the assembly and splicing of the space lens; horizontal sliding guide passes through the mounting with the fixed pulley and links to each other, and balancing weight, fixed pulley and movable pulley pass through the flexonics rope and link to each other, and the movable pulley passes through the flexonics rope with the space lens and links to each other, perhaps flexonics rope one end links to each other with the balancing weight, through the fixed pulley, and the other end links to each other with the gravity unloading point on the space lens. The quantity of the horizontal rotating guide rails and the horizontal sliding guide rails and the hanging layout are adjusted according to the ground microgravity simulation experiment requirement during the ground simulation assembly of the space lens. Different hanging modes in the adjustable hanging device are determined according to the size and the quality of the space lens. The gravity value needing to be unloaded is calculated according to the structure of the space lens, the mass of the counterweight block needing to be unloaded by gravity is adjusted according to different hanging modes, in the assembling follow-up process of the space lens, the counterweight block is driven by the space lens to move along the horizontal direction, the position is adjusted, the movement of the counterweight block and the space lens in the vertical direction is realized, the three-degree-of-freedom movement of the space lens in a plane is finally realized, the gravity unloading precision of the space lens at any moment in the ground simulation assembling process is ensured, and the ground microgravity simulation of the space lens in the rail assembling process is completed.
The suspension bracket has the advantages that the suspension bracket can complete gravity unloading of the space lens and follow-up motion along with the assembly process with high precision due to the arrangement of the lifting ropes with different sizes and lengths, the balancing weights with different masses, the horizontal rotating guide rails and the horizontal sliding guide rails in different quantities and the position, the simulated effect is closer to the real working state of the on-orbit assembly motion of the space lens, and the adaptability is good.
Has the advantages that:
1. the invention discloses a follow-up gravity unloading suspension device, which combines ground assembly splicing simulation and ground microgravity simulation of a space lens together to realize follow-up motion and gravity unloading in the motion process when the space lens is assembled and spliced in a rail.
2. The invention discloses a follow-up gravity unloading suspension device, wherein a horizontal rotating guide rail and a horizontal sliding guide rail do not have friction motion along a suspension bracket, so that two-degree-of-freedom follow-up motion of a space lens in the horizontal direction is realized, the device is used for unloading the gravity of the space lens, a balancing weight block hung below a fixed pulley can realize follow-up motion of two degrees of freedom in the horizontal direction and one degree of freedom in the vertical direction along with the assembling process of the space lens, the gravity unloading precision of the space lens at any moment in the assembling process is ensured, the ground microgravity simulation of the space lens in the rail assembling process is completed, and the adaptability is good.
3. The invention discloses a follow-up gravity unloading suspension device, which can realize that the tension of a connecting rope connected with a balancing weight is constantly equal to the gravity of a space lens in the assembling process by ensuring the uniform speed or the movement with a smaller speed change range of the follow-up device in the assembling process, and the gravity unloading precision of the space lens at any time in the assembling process is high.
4. The follow-up gravity unloading suspension device disclosed by the invention can meet the microgravity simulation of the assembly process of space lenses with different sizes and different shapes by adjusting the dimensions of the suspension bracket, the length of the connecting rope, the mass of the balancing weight, the number and the position layout of unloading points and the like, and has good universality.
5. In addition, the load capacity of the follow-up gravity unloading suspension device is improved by adjusting the length, width and height of the suspension bracket and the number, size and layout of the horizontal rotating guide rail and the horizontal sliding guide rail, the follow-up gravity unloading suspension device is simple to operate, flexible to use, firm and reliable, and the precision and accuracy of a test are effectively ensured.
Drawings
Fig. 1 is a schematic view 1 of a follow-up gravity unloading suspension device disclosed in an embodiment of the present invention;
FIG. 2 is a schematic view of a follow-up gravity unloading suspension apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a suspension support;
FIG. 4 is a schematic view of a vertical column configuration;
FIG. 5 is a schematic view of a strut mount construction;
FIG. 6 is a schematic view of the structure of a horizontal rotating guide rail and a horizontal sliding guide rail;
2.1-rolling bearing, 2.2-sliding block.
FIG. 7 is a schematic view of a slider configuration;
FIG. 8 is a schematic view of a fixed pulley connection;
fig. 9 is a schematic view of a movable pulley connecting piece.
The device comprises a suspension support 1, a vertical support 2, a support fixing part 3, a horizontal rotating guide rail 4, a horizontal sliding guide rail 5, a fixed pulley and fixed pulley connecting piece 6, a balancing weight 7, a movable pulley and movable pulley connecting piece 8, a flexible connecting rope 9 and a space lens 10.
Detailed Description
For a better understanding of the objects and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1:
as shown in fig. 1 and fig. 2, the following gravity unloading suspension device disclosed in this embodiment includes a two-degree-of-freedom suspension bracket and an adjustable suspension device, wherein the two-degree-of-freedom suspension bracket includes a suspension bracket 1, a vertical pillar 2, a pillar fixing member 3, a horizontal rotating guide rail 4, a horizontal sliding guide rail 5, and a rolling bearing 2.1; the adjustable suspension device comprises a fixed pulley 6, a balancing weight 7, a movable pulley 8, a flexible connecting rope 9 and a space lens 10. The ground microgravity simulation experiment object is a space lens 10. The counterweight 7 is used for gravity unloading of the space lens. The suspension bracket 1 is used to support and protect the entire gravity unloading apparatus. The horizontal rotating guide rail 4 and the horizontal sliding guide rail 5 generate two degrees of freedom in the horizontal direction, and friction-free rotation and sliding of the space lens in the horizontal direction along with the assembling process are realized through the rolling bearing 2.1 in the guide rails. The lower end of the horizontal sliding guide rail 5 is connected with the fixed pulley 6 through the sliding block 2.2, the flexible connecting rope 9 penetrates through the fixed pulley 6, one end of the flexible connecting rope is connected with the balancing weight 7, and the other end of the flexible connecting rope is connected with the movable pulley 8, so that gravity unloading is completed by the balancing weight with half space lens mass. The lower end of the movable pulley 8 is connected with a gravity unloading point on the space lens, the mass of the balancing weight 7 and the position layout of the horizontal rotating guide rail 4 on the suspension bracket 1 are adjusted, and the gravity unloading of the whole space lens along with the assembling process is completed.
The suspension bracket 1 is made of industrial aluminum profiles. The industrial aluminum profile is convenient to process, wide in application, low in manufacturing cost, firm and reliable, can be used as a high-strength working equipment frame, and can improve the load capacity of the follow-up gravity unloading suspension device.
The two-degree-of-freedom suspension bracket comprises a suspension bracket 1, a vertical strut 2, a strut fixing part 3, a horizontal rotating guide rail 4, a horizontal sliding guide rail 5 and a rolling bearing 2.1, wherein the rolling bearing 2.1 is a deep groove ball bearing. The deep groove ball bearing is used for the horizontal rotating guide rail 4 and the horizontal sliding guide rail 5 to complete frictionless movement, and frictionless follow-up assembly of the space lens is achieved.
Horizontal rotation guide rail 4 rotates along vertical pillar 2, and vertical pillar 2 is installed in suspension bracket 1 top by pillar mounting 3, therefore suspension bracket 1 size is unrestricted, and suspension bracket 1's size is formulated according to size, quality and the motion range demand of the space lens 10 that suspends in midair, the size is including length, width, height, through adjusting suspension bracket 1's size, makes space lens 10 follow-up gravity uninstallation hanging device not only be applicable to the space lens of small-size, narrow range, especially is applicable to the gravity uninstallation of the space lens of large size, improves load carrying capacity, realizes the high accuracy ground microgravity simulation of the space lens of large size on-orbit assembly work.
According to the size, the quality and the assembly requirement of the suspended space lens 10, the number and the layout of the horizontal rotating guide rail 4 and the horizontal sliding guide rail 5 are adjustable, the hanging requirement of different types of space lenses 10 in a simulated assembly state is met, and the precision and the accuracy of a simulation test are effectively guaranteed.
In order to facilitate processing and assembly and improve the stability of the adjustable suspension device, the fixed pulley 6 is fixed below the horizontal sliding guide rail 5 by a fixed pulley fixing part 6, and the movable pulley 8 is fixed by a fixing part 8 so as to be connected with a suspended space lens 10.
The adjustable suspension device comprises a flexible connecting rope 9, one end of the flexible connecting rope is connected with a balancing weight 7, the other end of the flexible connecting rope is connected with a movable pulley 8, and a space lens 10 is connected to the lower end of the movable pulley 8; or one end is connected with the balancing weight 7 and the other end is connected with the suspended space lens 10. Therefore, different hanging manners can be selected according to the size and the mass of the suspended space lens 10, so as to realize gravity unloading more accurately. Moreover, the material and the size of the flexible connecting rope 9 can be adjusted according to the experiment requirements.
The space lens 10 can be designed with different gravity unloading points and is connected with the movable pulley 8 through the flexible connecting rope 9 to realize gravity unloading.
The space lens 10 is assembled and spliced through the assembly follow-up device, when the follow-up device moves at a constant speed or approximately at a constant speed, the space lens 10 can be constantly equal to the tensile force of the flexible connecting rope 9 in gravity, and the gravity unloading precision is high.
The working method of the follow-up gravity unloading suspension device disclosed by the embodiment comprises the following steps: according to the ground microgravity simulation experiment requirements during the ground assembling and splicing simulation of the space lens, the suspension bracket 1 is arranged on the ground to support and protect the whole follow-up gravity unloading device, and the rolling bearings 2.1 in the horizontal rotating guide rail 4 and the horizontal sliding guide rail 5 realize frictionless follow-up motion to complete the assembling and splicing of the space lens; horizontal sliding guide 5 passes through fixed pulley mounting 6 with fixed pulley 6 and links to each other, and balancing weight 7, fixed pulley 6 and movable pulley 8 link to each other through flexible connection rope 9, and movable pulley 8 links to each other through flexible rope 9 with space lens 10, and perhaps flexible connection rope 9 one end links to each other with balancing weight 7, and through fixed pulley 6, the other end links to each other with the gravity unloading point on the space lens 10. The quantity and the hanging layout of the horizontal rotating guide rails 4 and the horizontal sliding guide rails 5 are determined according to the ground microgravity simulation experiment requirement during the ground simulation assembly of the space lens. Different hanging modes in the adjustable hanging device are determined according to the size and the quality of the space lens 10. The gravity value needing to be unloaded is calculated according to the structure of the space lens, the mass of the balancing weight 7 needing to be unloaded by gravity is adjusted according to different hanging modes, in the assembling follow-up process of the space lens 10, the balancing weights 7 are driven by the space lens 10 to move along the horizontal direction, the positions are adjusted, the movement of the balancing weights 7 and the space lens 10 in the vertical direction is realized, the three-degree-of-freedom movement of the space lens 10 in a plane is finally realized, the gravity unloading precision of the space lens 10 at any moment in the ground simulation assembling process is ensured, and the ground microgravity simulation of the space lens in-orbit assembly is completed.
The suspension bracket 1 is characterized in that flexible connecting ropes 9 with different sizes and lengths, balancing weights 7 with different qualities, horizontal rotating guide rails 4 and horizontal sliding guide rails 5 with different quantities and position layout are arranged, so that the device can finish gravity unloading of the space lens 10 and follow-up motion along with the assembly process with high precision, the simulated effect is closer to the real working state of the space lens on-rail assembly motion, and the adaptability is good.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A follow-up gravity unloading suspension device is characterized in that: comprises a suspension bracket (1), a vertical pillar (2), a pillar fixing part (3), a horizontal rotating guide rail (4), a horizontal sliding guide rail (5), a rolling bearing (2.1), a sliding block (2.2), a fixed pulley (6), a balancing weight (7), a movable pulley (8), a flexible connecting rope (9) and a space lens (10); the ground microgravity simulation experiment object is a space lens (10); the balancing weight (7) is used for gravity unloading of the space lens; the suspension bracket (1) is used for supporting and protecting the whole gravity unloading device; the horizontal rotating guide rail (4) and the horizontal sliding guide rail (5) generate two degrees of freedom in the horizontal direction, and friction-free rotation and sliding of the space lens in the horizontal direction along with the assembling process are realized through a rolling bearing (2.1) in the guide rails; the lower end of the horizontal sliding guide rail (5) is connected with a fixed pulley (6) through a sliding block (2.2), a flexible connecting rope (9) penetrates through the fixed pulley (6), one end of the flexible connecting rope is connected with a balancing weight (7), and the other end of the flexible connecting rope is connected with a movable pulley (8), so that gravity unloading is completed by the balancing weight with half the mass of the space lens; the lower end of the movable pulley (8) is connected with a gravity unloading point on the space lens, the mass of the balancing weight (7) and the position layout of the horizontal rotating guide rail (4) on the suspension bracket (1) are adjusted, and the gravity unloading of the whole space lens along with the assembling process is completed.
2. A follow-up gravity unloading suspension device according to claim 1, wherein: the suspension bracket (1) is made of industrial aluminum profiles; the industrial aluminum profile is convenient to process, wide in application, low in manufacturing cost, firm and reliable, can be used as a high-strength working equipment frame, and can improve the load capacity of the follow-up gravity unloading suspension device.
3. A follow-up gravity unloading suspension device according to claim 1, wherein: the rolling bearing (2.1) is a deep groove ball bearing; the deep groove ball bearing is used for completing frictionless motion of the horizontal rotating guide rail (4) and the horizontal sliding guide rail (5), and frictionless follow-up assembly of the space lens is realized.
4. A follow-up gravity unloading suspension device according to claim 1, wherein: horizontal rotation guide rail (4) rotate along vertical pillar (2), and vertical pillar (2) are installed in hanging in midair support (1) top by pillar mounting (3), therefore hang in midair support (1) size unrestricted, and the size of hanging in midair support (1) is according to size, quality and the motion range demand of the space lens (10) of hanging in midair and formulate, the size is including length, width, height, through adjusting the size of hanging in midair support (1), makes space lens (10) follow-up gravity uninstallation hanging device not only be applicable to the space lens of small-size, minirange, especially is applicable to the gravity uninstallation of large-size space lens, improves load-carrying capacity, realizes the high accuracy ground microgravity simulation of the space lens of large size on-orbit assembly work.
5. A follow-up gravity unloading suspension device according to claim 1, wherein: according to the size, the quality and the assembly requirement of the suspended space lens (10), the number and the layout of the horizontal rotating guide rail (4) and the horizontal sliding guide rail (5) are adjustable, the suspension requirement of different types of space lenses (10) in a simulated assembly state is met, and the precision and the accuracy of a simulation test are effectively guaranteed.
6. A follow-up gravity unloading suspension device according to claim 1, wherein: the fixed pulley (6) is fixed below the horizontal sliding guide rail (5) by a fixed pulley fixing piece (6), and the movable pulley (8) is fixed by a fixing piece (8) so as to be convenient for connecting a suspended space lens (10).
7. A follow-up gravity unloading suspension device according to claim 1, wherein: the adjustable suspension device comprises a flexible connecting rope (9), one end of the flexible connecting rope is connected with the balancing weight (7), the other end of the flexible connecting rope is connected with the movable pulley (8), and the space lens (10) is connected to the lower end of the movable pulley (8); or one end of the space lens is connected with the balancing weight (7) and the other end is connected with the suspended space lens (10); therefore, different hanging modes can be selected according to the size and the mass of the suspended space lens (10), so that gravity unloading can be realized more accurately; moreover, the material and the size of the flexible connecting rope (9) can be adjusted according to the experiment requirements.
8. A follow-up gravity unloading suspension device according to claim 1, wherein: the space lens (10) is connected with the movable pulley (8) through a flexible connecting rope (9) to realize gravity unloading by designing different gravity unloading points;
the space lens (10) is assembled and spliced through the assembly follow-up device, when the follow-up device moves at a constant speed or approximately at a constant speed, the space lens (10) can be constantly equal to the pulling force of the flexible connecting rope (9) in gravity, and the gravity unloading precision is high.
9. A follow-up gravity unloading suspension device according to claim 1, wherein: the working method is that according to the ground microgravity simulation experiment requirement during the ground assembling and splicing simulation of the space lens, the suspension bracket (1) is arranged on the ground to support and protect the whole follow-up gravity unloading device, and the friction-free follow-up motion is realized by the rolling bearings (2.1) in the horizontal rotating guide rail (4) and the horizontal sliding guide rail (5) to complete the assembling and splicing of the space lens; the horizontal sliding guide rail (5) is connected with a fixed pulley (6) through a fixed pulley fixing piece (6), a balancing weight (7), the fixed pulley (6) and a movable pulley (8) are connected through a flexible connecting rope (9), the movable pulley (8) is connected with a space lens (10) through the flexible rope (9), or one end of the flexible connecting rope (9) is connected with the balancing weight (7) and passes through the fixed pulley (6), and the other end of the flexible connecting rope is connected with a gravity unloading point on the space lens (10); the quantity and the hanging layout of the horizontal rotating guide rails (4) and the horizontal sliding guide rails (5) are determined according to the requirements of ground microgravity simulation experiments during ground simulation assembly of the space lens; different hanging modes in the adjustable hanging device are determined according to the size and the quality of the space lens (10); the gravity value needing to be unloaded is calculated according to the structure of the space lens, the mass of the counterweight block (7) unloaded by gravity is adjusted according to different hanging modes, in the assembling follow-up process of the space lens (10), the counterweight block (7) is driven by the space lens (10) to move along the horizontal direction, the position is adjusted, the movement of the counterweight block (7) and the space lens (10) in the vertical direction is realized, the three-degree-of-freedom movement of the space lens (10) in a plane is realized, the gravity unloading precision of the space lens (10) at any moment in the ground simulation assembling process is ensured, and the ground microgravity simulation of the space lens in-orbit assembly is completed.
10. A follow-up gravity unloading suspension device according to claim 1, wherein: different sizes of hanging in midair support (1), the flexible connection rope (9) of different length and balancing weight (7) of different quality to and the horizontal rotation guide rail (4) of different quantity and horizontal sliding guide rail (5) and position overall arrangement, enable the device accomplishes the gravity uninstallation of space lens (10) and follows up with the follow-up motion of equipment process with high accuracy, the effect of simulation more is close the real operating condition of space lens at the rail equipment motion, adaptability is good.
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