Flexible stretching rod winding anti-scattering and unfolding orienting device and using method thereof

Abstract

The invention provides a winding anti-loosening and unfolding orienting device for a flexible stretching rod and a using method thereof.The winding anti-loosening and unfolding orienting device comprises wedge blocks, wedge block seats, a winding cylinder, the flexible stretching rod, an adapter shaft, a connecting rod and a guide wheel, the multiple wedge block seats are symmetrically arranged on the two sides of the winding cylinder, and the flexible stretching rod is arranged on the winding cylinder from inside to outside in a winding mode; a plurality of wedge blocks are symmetrically installed on the two sides of the flexible stretching rod, and the wedge blocks on the wound flexible stretching rod are stacked layer by layer and locked on the wedge block base to form a wedge block set. The wedge blocks and the wedge block bases are interlocked in the tangential direction and the transverse direction, the tangential displacement and the transverse displacement between the rings are limited, and disordered expansion and scattering of the flexible stretching rods under the action of the elastic energy of the flexible stretching rods and mutual contact friction of flexible stretching rod bodies between the rings are prevented; orderly fixation of folding and winding and orientation of unfolding of the flexible stretching rod are ensured; the structure is simple and reliable, the additional mass is small, and the usability and reliability of the flexible stretching rod serving as a stretching mechanism are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of space deployment mechanisms, and in particular to a flexible stretch rod winding anti-scattering and deployment orientation device and a use method thereof. Background Art

[0002] The spatial deployment mechanism provides various motion functions for the solar wing, antenna, sunshade, and other components, with prescribed motion trajectories. These mechanisms include hinged folding linkage, telescopic sleeve, and flexible extension rods. The flexible extension rod utilizes the elastic energy stored in a rolled, slit circular tube to achieve deployment. This integrated structure and function offers lightweight, high storage efficiency, and simplicity and reliability, making it suitable for large-area rollable flexible solar wings.

[0003] Patent document CN118637437A discloses a roll-up flexible solar cell array deployment and retraction mechanism, which provides radial constraints on the roll-up flexible extension rod through a radial compression constraint mechanism consisting of an arm bracket connecting shaft, a spring clamping assembly, a pre-tightening assembly and a stabilizer rod bracket, preventing radial natural expansion and deformation and achieving directional extension.

[0004] However, the solutions in the above-mentioned prior art have a complex structure and a large additional mass. Each turn of the wound flexible stretch rod is not isolated, and there is no lateral constraint except for the radial direction. When the spacecraft vibrates during launch, there may be misalignment, friction and wear between layers, which poses a certain risk of use. Summary of the Invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a flexible stretch rod winding anti-scattering and unfolding directional device and a use method thereof.

[0006] According to the present invention, a flexible stretch rod winding anti-scattering and unfolding orientation device includes: a wedge, a wedge seat, a winding drum, a flexible stretch rod, a transfer shaft, a connecting rod, and a guide wheel. One end of the connecting rod is tightly connected to the transfer shaft, and the other end is hinged to the guide wheel. The winding drum is mounted on the transfer shaft through a bearing sleeve and cooperates to form a rotating pair.

[0007] The inner end of the flexible stretching rod is tightly connected to the outer wall of the winding drum, and the outer end is fixed on the satellite body. The guide wheel is arranged above the straightened flexible stretching rod, and a plurality of wedge seats are symmetrically arranged on both sides of the winding drum. The flexible stretching rod is wound on the winding drum from the inside to the outside, and a plurality of wedges are symmetrically installed on both sides of the flexible stretching rod. After winding, the wedges on the flexible stretching rod are stacked and locked on the wedge seats to form a wedge group, and the plurality of wedge groups are evenly distributed axially around the winding drum.

[0008] According to the present invention, a flexible stretch rod winding anti-scattering and deployment orientation device includes: a wedge, a wedge seat, a winding drum, a flexible stretch rod, an adapter shaft, a guide wheel, an adapter shaft bracket, and a guide wheel bracket, wherein the adapter shaft is fixed to the satellite body via the adapter shaft bracket, the guide wheel is hinged to the guide wheel bracket, and the guide wheel bracket is fixed to the satellite body, and the winding drum is mounted on the adapter shaft via a bearing sleeve and cooperates to form a rotating pair;

[0009] The inner end of the flexible stretching rod is tightly connected to the outer wall of the winding drum, and the outer end is tightly connected to the load. The load is fixed on the satellite body. The guide wheel is arranged above the straightened flexible stretching rod. A plurality of wedge seats are symmetrically arranged on both sides of the winding drum. The flexible stretching rod is wound on the winding drum from the inside to the outside. A plurality of wedges are symmetrically installed on both sides of the flexible stretching rod. The wedges on the wound flexible stretching rod are stacked and locked on the wedge seats to form a wedge group. The plurality of wedge groups are evenly distributed axially around the winding drum.

[0010] Preferably, the wedge is Z-shaped, and the upper and lower surfaces are both provided with two step structures for achieving bidirectional limiting along the axial direction of the winding drum and unidirectional limiting along the winding tangential direction.

[0011] Preferably, the upper surface of the wedge seat is provided with a protrusion matching the lower surface of the wedge, and wedges are provided on both sides of the inner end of the flexible stretch rod, and the wedges are interlocked with the wedge seat.

[0012] Preferably, a screw hole is provided at the middle of the inner end of the flexible stretching rod, which is fixed to the outer wall of the winding drum by screw connection.

[0013] Preferably, a slit is formed in the middle of the wedge, and the side edges of the flexible stretch rod are inserted into the slit and fixed by bonding.

[0014] According to the present invention, a method for using a flexible stretch rod winding anti-scattering and unfolding directional device includes a folding method and an unfolding method;

[0015] The stowing method comprises the following steps: fixing the outer end of the flexible stretching rod, interlocking and fixing the wedge block at the inner end of the flexible stretching rod with the wedge block seat on the winding drum, driving the winding drum to rotate, winding the flexible stretching rod layer by layer on the winding drum starting from the inner end, and driving the winding drum to move toward the outer end of the flexible stretching rod, and stacking and locking the wedge blocks on both sides of the flexible stretching rod in sequence as the rod is wound. After stowing is completed, the winding drum is fixedly connected to the satellite body by a locking device;

[0016] The unfolding method includes the following steps: unlocking the winding drum, unwinding and straightening the flexible stretching rod under the action of its own elastic energy, driving the winding drum to rotate and move away from the outer end of the flexible stretching rod, and the winding drum drives the guide wheel to roll on the flexible stretching rod, and the guide wheel maintains the directional movement of the winding drum through the connecting rod.

[0017] According to the present invention, a method for using a flexible stretch rod winding anti-scattering and unfolding directional device includes a folding method and an unfolding method;

[0018] The winding method comprises the following steps: a wedge at the inner end of the flexible stretching rod is interlocked and fixed with a wedge seat on the winding drum, the winding drum is driven to rotate, the flexible stretching rod is wound around the winding drum layer by layer starting from the inner end, the outer end of the flexible stretching rod approaches the winding drum, the wedges on both sides of the flexible stretching rod are stacked and locked in sequence as the rod is wound, and after the winding is completed, the winding drum is locked by a locking device;

[0019] The unfolding method includes the following steps: unlocking the winding drum and the load, unwinding and straightening the flexible stretching rod under the action of its own elastic energy, driving the winding drum to rotate around the transfer shaft, the outer end of the flexible stretching rod pushing the load to unfold, and the guide wheel maintaining the directional movement of the flexible stretching rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention presses the wedge blocks on the innermost circle of the flexible stretching rod onto the wedge block seat, and the subsequent wedge blocks are stacked and pressed onto the wedge blocks of the previous circle as the flexible stretching rod is wound. At each stacking position, the wedge blocks and the wedge block seats, as well as the wedge blocks and the wedge blocks are interlocked tangentially and laterally, limiting the tangential and lateral displacement between the circles, preventing the flexible stretching rod from expanding and spreading disorderly under the action of its own elastic energy, and preventing the flexible stretching rod from contacting and rubbing with each other between the circles, thereby ensuring the orderly fixation and unfolding orientation of the flexible stretching rod when it is folded and wound; the structure is simple and reliable, with low additional mass, which improves the usability and reliability of the flexible stretching rod as an extension mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the flexible stretch rod winding anti-scattering and unfolding directional device in Example 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of the present invention showing the disorderly expansion and dispersion of the flexible stretching rod under unconstrained conditions;

[0025] Figure 3 This is a schematic diagram of the stacking arrangement of the wedge block, the wedge block seat and the flexible extension rod according to the present invention;

[0026] Figure 4 This is a schematic diagram showing the details of the mutual stacking of the wedge and the wedge seat, which mainly embodies the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the wedge block mainly embodied in the present invention;

[0028] Figure 6 This is an overall schematic diagram of the flexible stretch rod winding anti-scattering and unfolding directional device according to embodiment 2 of the present invention.

[0029] Shown in the figure: wedge 1; wedge seat 2; winding drum 3; flexible stretching rod 4; bearing 5; adapter shaft 6; connecting rod 7; guide wheel 8; adapter shaft bracket 9; guide wheel bracket 10. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1-5 As shown, a flexible stretch rod winding anti-dispersion and unfolding directional device provided according to the present invention includes: a wedge 1, a wedge seat 2, a winding drum 3, a flexible stretch rod 4, an adapter shaft 6, a connecting rod 7 and a guide wheel 8. One end of the connecting rod 7 is tightly connected to the adapter shaft 6, and the other end is hinged to the guide wheel 8. The winding drum 3 is sleeved on the adapter shaft 6 through a bearing 5 and cooperates to form a rotating pair; the inner end of the flexible stretch rod 4 is tightly connected to the outer wall of the winding drum 3, and the outer end is fixed on the satellite body. The guide wheel 8 is arranged above the straightened flexible stretch rod 4, and multiple wedge seats 2 are symmetrically arranged on both sides of the winding drum 3. The flexible stretch rod 4 is wound on the winding drum 3 from the inside to the outside. Multiple wedges 1 are symmetrically installed on both sides of the flexible stretch rod 4. The wedges 1 on the wound flexible stretch rod 4 are stacked and locked on the wedge seat 2 to form a wedge group, and the multiple wedge groups are evenly distributed around the axial direction of the winding drum 3.

[0033] The wedge block 1 is in a Z-shape, and the upper and lower surfaces are provided with two stepped structures for realizing bidirectional limitation along the axial direction of the winding drum 3 and unidirectional limitation along the tangential direction of the winding. The wedge block 1 is in a "Z" shape as a whole, and is a stepped structure in both directions, realizing bidirectional limitation of the flexible stretch rod 4 along the axial direction of the winding drum 3 and unidirectional limitation along the tangential direction of the winding at any adjacent inner and outer layers where the wedge blocks 1 are stacked. The stepped shape of the wedge block 1 in the axial direction of the winding drum 3 can limit the relative displacement of adjacent layers in this direction. After the flexible stretch rod 4 is wound, under the action of its own elastic restoring force, it has Figure 2The spreading state is accompanied by a tangential relative displacement between adjacent layers at the same radial position, and this relative displacement is unidirectional (the direction of expansion is always outward). The stepped shape of the wedge 1 in the winding tangential direction can prevent this unidirectional relative displacement, thereby suppressing expansion and spreading.

[0034] The upper surface of the wedge seat 2 is provided with a protrusion that matches the lower surface of the wedge 1. The inner end of the flexible extension rod 4 is provided with a wedge 1 on both sides, and the wedge 1 interlocks with the wedge seat 2. The wedge seat 2 is located at the bottom of the stack of wedges 1 and interlocks with the innermost wedge 1 in two directions.

[0035] A screw hole is provided at the middle of the inner end of the flexible stretching rod 4 , which is fixed to the outer wall of the winding drum 3 by screw connection.

[0036] A slit is formed in the middle of the wedge 1, and the side edges of the flexible extension rod 4 are inserted into the slit and fixed by adhesive.

[0037] The number of wedge blocks can be optimized according to the size of the flexible stretch rod 4 and the winding radius, generally 4, 6, 8, or 12.

[0038] This application uses four sets of wedges as an example. The wedges 1 are symmetrically mounted on both sides of the flexible stretch rod 4, spaced 90° apart in each layer. When the flexible stretch rod 4 is extended, the winding drum 3 rotates clockwise and moves leftward due to the extension of the flexible stretch rod 4. Retraction is the opposite of this.

[0039] According to the present invention, a method for using a flexible stretch rod winding anti-scattering and unfolding directional device includes a folding method and an unfolding method;

[0040] The stowing method comprises the following steps: the outer end of the flexible stretching rod 4 is fixed, the wedge 1 at the inner end of the flexible stretching rod 4 is interlocked and fixed with the wedge seat 2 on the winding drum 3, the winding drum 3 is driven to rotate, the flexible stretching rod 4 is wound layer by layer on the winding drum 3 starting from the inner end, and the winding drum 3 is driven to move toward the outer end of the flexible stretching rod 4, the wedges 1 on both sides of the flexible stretching rod 4 are stacked and locked in sequence as the winding is completed, and after stowing is completed, the winding drum 3 is fixedly connected to the satellite body by the locking device;

[0041] The unwinding method includes the following steps: the winding drum 3 is unlocked, and the flexible stretching rod 4 unwinds and straightens due to its own elastic energy, driving the winding drum 3 to rotate and move away from the outer end of the flexible stretching rod 4. The winding drum 3 then drives the guide wheel 8 to roll on the flexible stretching rod 4. The guide wheel 8 maintains the directional movement of the winding drum 3 via the connecting rod 7. After unwinding is completed, the winding drum 3 and the flexible stretching rod 4 do not need to be removed.

[0042] More specifically, during winding, the winding drum 3 is rotated counterclockwise, either manually or by a motor, and the flexible stretch rod 4 is wound layer by layer around the winding drum 3, driving the winding drum 3 toward the outer end. During the layer-by-layer winding process, starting from the inner end of the flexible stretch rod 4, the outer wedges 1 are stacked on the inner wedges 1 at 90° intervals around the circumference, forming a bidirectional limit lock between the adjacent inner and outer layers along the winding axis and a unidirectional limit lock along the winding tangential direction.

[0043] Once retracted, the winding drum 3 is securely connected to the satellite body via a locking device. A variety of locking devices are available onboard, with pyrotechnics, hot knives, and memory alloys being common. This prevents relative rotation or translation between the winding drum 3 and the outer ends of the flexible extension rods 4. The stacking wedges 1 constrain the flexible extension rods 4 to the winding drum 3, preventing them from expanding and dispersing due to their elastic potential energy. The wedges 1 also isolate each layer with uniform spacing, preventing wear and damage from friction between the layers of flexible extension rods 4.

[0044] When the flexible stretching rod 4 is wound and retracted, the wedge 1 on the innermost circle of the flexible stretching rod 4 is pressed against the wedge seat 2 at the upper, lower, left and right positions of the winding drum 4. The subsequent wedges 1 are stacked and pressed against the wedge 1 of the previous circle as the flexible stretching rod 4 is wound. At each stacking position, the wedges 1 and the wedge seats 2, and the wedges 1 and the wedges 1 are interlocked tangentially and laterally, limiting the tangential and lateral displacements between the circles, preventing the disorderly expansion and dispersion of the flexible stretching rod 4 under the action of its own elastic energy, and the mutual contact and friction of the flexible stretching rod 4 body between the circles, and achieving the locking of the entire device by locking the winding drum 3 and the root of the flexible stretching rod 4.

[0045] When the flexible stretching rod 4 is unfolded, the outer end of the flexible stretching rod 4 is fixed, and the winding drum 3 is unlocked. The flexible stretching rod 4 unwinds and straightens under the action of its own elastic energy, driving the winding drum 3 to roll and move forward, and at the same time drives the adapter shaft 6 and the connecting rod 7 forward, and then drives the guide wheel 8 to roll forward on the flexible stretching rod 4. During the movement, the connecting rod 7 maintains the relative position between the winding drum 3 and the guide wheel 8, and cooperates with the tangential and lateral limits between the wedge blocks 1 to ensure the directional movement of the winding drum 3 along the straightening direction of the flexible stretching rod 4.

[0046] The present application effectively prevents the radial expansion and dispersion of the flexible stretch rod 4, and ensures the orderly fixation and unfolding orientation of the flexible stretch rod 4 when it is folded and wound.

[0047] The present application has a simple and reliable structure and small additional mass, thereby improving the usability and reliability of the flexible stretching rod 4 as a stretching mechanism.

[0048] The wedge block of the present application can simultaneously wind up the flexible stretch rod 4 and isolate the layers from each other, thereby avoiding the dislocation and friction wear of the flexible stretch rod 4 during the emission vibration.

[0049] Example 2

[0050] like Figure 2-6 As shown, a flexible stretch rod winding anti-scattering and unfolding directional device provided by the present invention is characterized in that it includes: a wedge 1, a wedge seat 2, a winding drum 3, a flexible stretch rod 4, an adapter shaft 6, a guide wheel 8, an adapter shaft bracket 9 and a guide wheel bracket 10, the adapter shaft 6 is fixed to the satellite body through the adapter shaft bracket 9, the guide wheel 8 is hinged on the guide wheel bracket 10, the guide wheel bracket 10 is fixed to the satellite body, the winding drum 3 is sleeved on the adapter shaft 6 through the bearing 5 and cooperates to form a rotating pair; the flexible stretch rod 4 includes a wedge 1, a wedge seat 2, a winding drum 3, a flexible stretch rod 4, a transfer shaft 6, a guide wheel 8, a transfer shaft bracket 9 and a guide wheel bracket 10, the transfer shaft 6 is fixed to the satellite body through the transfer shaft bracket 9, the guide wheel 8 is hinged on the guide wheel bracket 10, the guide wheel bracket 10 is fixed to the satellite body, and the winding drum 3 is sleeved on the transfer shaft 6 through the bearing 5 and cooperates to form a rotating pair; The inner end of the expansion rod 4 is tightly connected to the outer wall of the winding drum 3, and the outer end is tightly connected to the load. The load is fixed on the satellite body. The guide wheel 8 is arranged above the straightened flexible stretching rod 4. A plurality of wedge seats 2 are symmetrically arranged on both sides of the winding drum 3. The flexible stretching rod 4 is wound on the winding drum 3 from the inside to the outside. A plurality of wedges 1 are symmetrically installed on both sides of the flexible stretching rod 4. The wedges 1 on the wound flexible stretching rod 4 are stacked and locked on the wedge seats 2 to form a wedge group. The plurality of wedge groups are evenly distributed axially around the winding drum 3.

[0051] The wedge block 1 is in a Z-shape, and the upper and lower surfaces are provided with two stepped structures for realizing bidirectional limitation along the axial direction of the winding drum 3 and unidirectional limitation along the tangential direction of the winding. The wedge block 1 is in a "Z" shape as a whole, and is a stepped structure in both directions, realizing bidirectional limitation of the flexible stretch rod 4 along the axial direction of the winding drum 3 and unidirectional limitation along the tangential direction of the winding at any adjacent inner and outer layers where the wedge blocks 1 are stacked. The stepped shape of the wedge block 1 in the axial direction of the winding drum 3 can limit the relative displacement of adjacent layers in this direction. After the flexible stretch rod 4 is wound, under the action of its own elastic restoring force, it has Figure 2 The spreading state is accompanied by a tangential relative displacement between adjacent layers at the same radial position, and this relative displacement is unidirectional (the direction of expansion is always outward). The stepped shape of the wedge 1 in the winding tangential direction can prevent this unidirectional relative displacement, thereby suppressing expansion and spreading.

[0052] The upper surface of the wedge seat 2 is provided with a protrusion that matches the lower surface of the wedge 1. The inner end of the flexible extension rod 4 is provided with a wedge 1 on both sides, and the wedge 1 interlocks with the wedge seat 2. The wedge seat 2 is located at the bottom of the stack of wedges 1 and interlocks with the innermost wedge 1 in two directions.

[0053] A screw hole is provided at the middle of the inner end of the flexible stretching rod 4 , which is fixed to the outer wall of the winding drum 3 by screw connection.

[0054] A slit is formed in the middle of the wedge 1, and the side edges of the flexible extension rod 4 are inserted into the slit and fixed by adhesive.

[0055] The number of wedge blocks can be optimized according to the size of the flexible stretch rod 4 and the winding radius, generally 4, 6, 8, or 12.

[0056] This application uses four sets of wedges as an example. The wedges 1 are symmetrically mounted on the edges of the flexible stretch rod 4, circumferentially at 90° intervals per layer. When the flexible rod is extended, the rotational freedom constraint between the winding drum 3 and the adapter shaft bracket 9 is released. The winding drum 3 rotates clockwise under the elastic potential energy of the flexible stretch rod 4 or the motor's speed control, unwinding and straightening the flexible stretch rod 4, with the outer end extending to the right. Retraction is the opposite.

[0057] According to the present invention, a method for using a flexible stretch rod winding anti-scattering and unfolding directional device includes a folding method and an unfolding method;

[0058] The winding method comprises the following steps: the wedge 1 at the inner end of the flexible stretching rod 4 is interlocked and fixed with the wedge seat 2 on the winding drum 3, the winding drum 3 is driven to rotate, and the flexible stretching rod 4 is wound on the winding drum 3 layer by layer starting from the inner end, the outer end of the flexible stretching rod 4 approaches the winding drum 3, and the wedges 1 on both sides of the flexible stretching rod 4 are stacked and locked in sequence as the winding is completed. After the winding is completed, the winding drum 3 is locked by the locking device;

[0059] The unfolding method includes the following steps: unlocking the winding drum 3 and the load, unwinding and straightening the flexible stretching rod 4 under the action of its own elastic energy, driving the winding drum 3 to rotate around the adapter shaft 6, the outer end of the flexible stretching rod 4 pushes the load to unfold, and the guide wheel 8 maintains the directional movement of the flexible stretching rod 4.

[0060] More specifically, during winding, the winding drum 3 is rotated counterclockwise, either manually or by a motor, and the flexible stretch rod 4 is wound layer by layer around the winding drum 3, with the outer end of the stretch rod retracting to the left. As the flexible stretch rod 4 winds layer by layer, the outer wedges 1 are stacked on the inner wedges 1 at 90° intervals around the circumference, forming a bidirectional limit lock between the adjacent inner and outer layers along the winding axis and a unidirectional limit lock along the winding tangential direction.

[0061] The present application effectively prevents the radial expansion and dispersion of the flexible stretch rod 4, and ensures the orderly fixation and unfolding orientation of the flexible stretch rod 4 when it is folded and wound.

[0062] The present application has a simple and reliable structure and small additional mass, thereby improving the usability and reliability of the flexible stretching rod 4 as a stretching mechanism.

[0063] The wedge block of the present application can simultaneously wind up the flexible stretch rod 4 and isolate the layers from each other, thereby avoiding the dislocation and friction wear of the flexible stretch rod 4 during the emission vibration.

[0064] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0065] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A flexible stretch rod winding anti-scattering and unfolding directional device, characterized in that: include: A wedge block (1), a wedge block seat (2), a winding drum (3), a flexible stretching rod (4), a transfer shaft (6), a connecting rod (7) and a guide wheel (8), wherein one end of the connecting rod (7) is tightly connected to the transfer shaft (6) and the other end is hinged to the guide wheel (8), and the winding drum (3) is sleeved on the transfer shaft (6) through a bearing (5) and cooperates to form a rotating pair; The inner end of the flexible stretching rod (4) is tightly connected to the outer wall of the winding drum (3), and the outer end is fixed to the satellite body. The guide wheel (8) is arranged above the straightened flexible stretching rod (4). A plurality of wedge blocks (2) are symmetrically arranged on both sides of the winding drum (3). The flexible stretching rod (4) is wound on the winding drum (3) from the inside to the outside. A plurality of wedge blocks (1) are symmetrically installed on both sides of the flexible stretching rod (4). After being wound, the wedge blocks (1) on the flexible stretching rod (4) are stacked and locked on the wedge block seats (2) to form a wedge block group. The plurality of wedge block groups are evenly distributed in the axial direction of the winding drum (3).

2. A flexible stretch rod winding anti-scattering and unfolding directional device, characterized in that: include: A wedge (1), a wedge seat (2), a winding drum (3), a flexible stretching rod (4), a transfer shaft (6), a guide wheel (8), a transfer shaft bracket (9), and a guide wheel bracket (10), wherein the transfer shaft (6) is fixed to the satellite body via the transfer shaft bracket (9), the guide wheel (8) is hinged to the guide wheel bracket (10), and the guide wheel bracket (10) is fixed to the satellite body, and the winding drum (3) is sleeved on the transfer shaft (6) via a bearing (5) and cooperates to form a rotating pair; The inner end of the flexible stretching rod (4) is tightly connected to the outer wall of the winding drum (3), and the outer end is tightly connected to the load, and the load is fixed on the satellite body. The guide wheel (8) is arranged above the straightened flexible stretching rod (4), and a plurality of wedge blocks (2) are symmetrically arranged on both sides of the winding drum (3). The flexible stretching rod (4) is wound on the winding drum (3) from the inside to the outside. A plurality of wedge blocks (1) are symmetrically installed on both sides of the flexible stretching rod (4). After being wound, the wedge blocks (1) on the flexible stretching rod (4) are stacked and locked on the wedge block seats (2) to form a wedge block group. The plurality of wedge block groups are evenly distributed in the axial direction of the winding drum (3).

3. The flexible stretch rod winding anti-scattering and unfolding orientation device according to claim 1 or 2, characterized in that: The wedge (1) is Z-shaped, and both the upper and lower surfaces are provided with two step structures for achieving bidirectional limiting along the axial direction of the winding drum (3) and unidirectional limiting along the winding tangential direction.

4. The flexible stretch rod winding anti-scattering and unfolding directional device according to claim 3, characterized in that: The upper surface of the wedge block seat (2) is provided with a protrusion matching the lower surface of the wedge block (1), and wedge blocks (1) are provided on both sides of the inner end of the flexible stretching rod (4), and the wedge blocks (1) are interlocked with the wedge block seat (2).

5. The flexible stretch rod winding anti-scattering and unfolding directional device according to claim 4, characterized in that: A screw hole is provided at the middle of the inner end of the flexible stretching rod (4), which is fixed to the outer wall of the winding drum (3) by screw connection.

6. The flexible stretch rod winding anti-scattering and unfolding directional device according to claim 3, characterized in that: The middle of the wedge block (1) is slotted, and the side edges of the flexible stretching rod (4) are inserted into the slot and fixed by bonding.

7. A method for using a flexible stretch rod winding anti-scattering and unfolding directional device, characterized in that: The flexible stretch rod winding anti-scattering and unfolding orientation device according to claim 1, comprising a folding method and an unfolding method; The folding method comprises the following steps: the outer end of the flexible stretching rod (4) is fixed, the wedge block (1) at the inner end of the flexible stretching rod (4) is interlocked and fixed with the wedge block seat (2) on the winding drum (3), the winding drum (3) is driven to rotate, the flexible stretching rod (4) is wound on the winding drum (3) layer by layer from the inner end, and the winding drum (3) is driven to move toward the outer end of the flexible stretching rod (4), the wedge blocks (1) on both sides of the flexible stretching rod (4) are stacked and locked in sequence as the winding is completed, and after the folding is completed, the winding drum (3) is fixedly connected to the satellite body through the locking device; The unfolding method comprises the following steps: unlocking the winding drum (3), unwinding and straightening the flexible stretching rod (4) under the action of its own elastic energy, driving the winding drum (3) to rotate and move away from the outer end of the flexible stretching rod (4), and the winding drum (3) drives the guide wheel (8) to roll on the flexible stretching rod (4), and the guide wheel (8) keeps the winding drum (3) moving in a directional manner through the connecting rod (7).

8. A method for using a flexible stretch rod winding anti-scattering and unfolding directional device, characterized in that: The flexible stretch rod winding anti-scattering and unfolding orientation device according to claim 2, comprising a folding method and an unfolding method; The folding method comprises the following steps: the wedge block (1) at the inner end of the flexible stretching rod (4) is interlocked and fixed with the wedge block seat (2) on the winding drum (3), the winding drum (3) is driven to rotate, the flexible stretching rod (4) is wound on the winding drum (3) layer by layer starting from the inner end, the outer end of the flexible stretching rod (4) approaches the winding drum (3), the wedge blocks (1) on both sides of the flexible stretching rod (4) are stacked and locked in sequence as the winding is completed, and after the folding is completed, the winding drum (3) is locked by a locking device; The unfolding method comprises the following steps: unlocking the winding drum (3) and the load, unwinding and straightening the flexible stretching rod (4) under the action of its own elastic energy, driving the winding drum (3) to rotate around the transfer shaft (6), the outer end of the flexible stretching rod (4) pushing the load to unfold, and the guide wheel (8) maintaining the directional movement of the flexible stretching rod (4).

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