阅读说明：本技术 一种立方星分离间隙补偿机构 (Cube star separation clearance compensation mechanism ) 是由 李万岭 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种立方星分离间隙补偿机构,包括导向滑轨、单头螺柱、挡框、双通六角铜柱、螺杆、螺母、垫片、弹簧压簧、连杆、弹簧支撑块、夹紧块、阶梯轴、固定座、轴承挡圈、垫片、螺母、轴承；本发明的优点在于：结构简单、可靠性高、控制方便、可实现对立方星与分离机构滑轨的间隙补偿作用,消除间隙。(The invention discloses a cubic star separation gap compensation mechanism which comprises a guide slide rail, a single-end stud, a baffle frame, a two-way hexagonal copper column, a screw rod, a nut, a gasket, a spring pressure spring, a connecting rod, a spring supporting block, a clamping block, a stepped shaft, a fixed seat, a bearing retainer ring, a gasket, a nut and a bearing, wherein the guide slide rail is arranged on the guide slide rail; the invention has the advantages that: the device has the advantages of simple structure, high reliability and convenient control, can realize the clearance compensation effect on the sliding rails of the cube star and the separating mechanism, and eliminates the clearance.)

1. A cube star separation clearance compensation mechanism which characterized in that: the device comprises a guide slide rail, a single-end stud, a baffle frame, a two-way hexagonal copper column, a screw, a nut, a gasket, a spring pressure spring, a connecting rod, a spring supporting block, a clamping block, a stepped shaft, a fixed seat, a bearing retainer ring, a gasket, a nut and a bearing;

the stud component comprises a two-way hexagonal copper column, a screw rod, a nut, a gasket and a compression spring, the two-way hexagonal copper column penetrates through the top frame and a circular hole corresponding to the bottom frame, the two-way hexagonal copper column is installed at the upper end of the screw rod and is in contact with the hatch cover through the corresponding circular hole of the top frame, the two-way hexagonal copper column is pressed after the hatch cover is closed, and the two-way hexagonal copper column is released after the hatch cover is opened; and the screw rod is sequentially provided with a two-way hexagonal copper column, a single nut, a spring supporting block, two nuts, a gasket, a spring pressure spring and a spring supporting block.

2. A cube-separator gap compensation mechanism according to claim 1, further comprising: the connecting rod is provided with a spring supporting block, the connecting rod and the spring supporting block are fastened through countersunk head screws, and the connecting rod and the star body clamping component are fastened through screws.

3. A cube-separator gap compensation mechanism according to claim 2, wherein: the spring support block is provided with a through hole, a screw rod can move in the through hole in the opening and closing processes of the hatch cover, the spring support block, a nut and a gasket limit the stroke of a spring and a pressure spring together, and the distance between the nut and the spring support block is adjusted according to the mass of the satellite and the received working condition, so that the pressing force on the cube satellite is adjusted; the spring supporting block is of a triangular structure, so that the stabilizing effect is achieved, and the internal space is saved.

4. A cube-separator gap compensation mechanism according to claim 3, wherein: the star clamping assembly comprises a clamping block, a stepped shaft, a fixed seat, a bearing retainer ring, a gasket, a nut and a bearing, wherein the clamping block penetrates through a slotted hole of the guide sliding rail, the stepped shaft sequentially penetrates through one side of the fixed seat, the bearing retainer ring, the other side of the fixed seat and the gasket, and finally the stepped shaft is fastened through the nut; an inclined plane groove is formed in the clamping block, and the bearing rotates in the inclined plane groove; the clamping block is outwards provided with a protruding structure, and the protruding structure penetrates through a slotted hole of the guide sliding rail and clamps the square star; the fixed seat is provided with a countersunk hole for axially limiting the stepped shaft, and the other end of the fixed seat is axially limited by a nut; the stepped shaft is provided with a shaft shoulder which passes through the countersunk hole of the fixed seat and then is attached to the inner ring of the bearing, so that the bearing can normally rotate.

5. A cube-satellite separation gap compensation mechanism according to claim 4, wherein: the two-way hexagonal copper column is in threaded connection with the screw, the bottom of the two-way hexagonal copper column is provided with a nut to position the two-way hexagonal copper column, the hatch cover is a flip cover, the hatch cover is positioned at the uppermost part of the whole mechanism, a counter bore is formed, a gap is reserved, and the two-way hexagonal copper column can be tightly pushed when the flip cover is closed;

the spring supporting block is connected with the connecting rod through a screw, and the screw penetrates through a through hole of the spring supporting block to play a role in positioning the screw; the clamping block is contacted with the bearing, the stepped shaft clamps and positions the bearing through the nut and the bearing retainer ring, and the bearing is limited to move towards the two sides of the inclined plane of the clamping block; the clamping block frame is fixedly connected with the clamping block fixing seat through a screw.

6. A cube-separator gap compensation mechanism according to claim 5, wherein: the guide slide rail is provided with a slotted hole, so that the clamping block can penetrate through the slotted hole and is tightly pressed on the satellite bearing frame; the guide assembly comprises a top frame, a middle frame, a bottom frame and a guide block, wherein the top frame, the middle frame and the bottom frame are fastened with a guide sliding rail through screws, and the guide block is installed on the middle frame and provides guiding and limiting effects when the connecting rod moves.

7. A cube-separator gap compensation mechanism according to claim 6, wherein: the single-end stud is connected with the side skin through a screw, and the other end of the single-end stud is connected with the sliding rail; the blocking frame is fixed with the front skin and the side skin through screws, and the other side of the blocking frame is connected with the guide sliding rail through screws.

8. A cube-separator gap compensation mechanism according to claim 7, wherein: the spring support block is fixedly connected with the connecting rod, the spring support block is provided with a first threaded hole and a second threaded hole which are threaded holes matched with the connecting rod, the spring support block is provided with a through hole which is matched with the screw rod, a gap is reserved between the spring support block and the screw rod, and friction force is reduced.

9. A cube-separator gap compensation mechanism according to claim 8, wherein: the clamping block is designed to be a groove inclined plane and is in point contact with the bearing; the connecting rod is L-shaped, is provided with a first threaded hole, a third threaded hole, a fifth threaded hole and a sixth threaded hole and is used for connecting the threaded holes of the spring supporting block.

10. A cube-separator gap compensation mechanism according to claim 9, wherein: the bearing is clamped by the stepped shaft and the bearing retainer ring together, and is fixed by only one nut; the point that the bearing contacts with the clamping block is a moving point, the bottom frame spring joint is a fixed system, the connecting rod is a moving system, the absolute motion direction is along the normal direction of the inclined plane groove of the clamping block, the relative motion is along the normal direction of the protrusion of the clamping block, the traction motion is in the vertical downward direction, and the acceleration direction is along each force direction to form a force vector triangle.

Technical Field

The invention relates to a cubic star separation structure, in particular to a cubic star separation clearance compensation mechanism, and belongs to the field of cubic star separation structures.

Background

In recent years, due to policy support of civil aviation and aerospace in China, more and more civil aviation capital except colleges gradually enter the aerospace field, and particularly in the research and development of cubic stars, the advantages of short development period, low manufacturing cost and the like exist, and the research and development capacity and the research and development quantity of the cubic stars are continuously improved and increased. With the increase of the cubic star launching demand, various cubic star separating mechanisms emerge continuously, but the general problems of large internal clearance, high vibration amplitude and poor adaptability to the severe mechanical environments such as acceleration, impact and the like in the rocket launching process exist.

Disclosure of Invention

The invention aims to design a cubic star separation gap compensation mechanism which is simple in structure, high in reliability and convenient to control, can realize the gap compensation effect on a sliding rail of a cubic star and separation mechanism, and eliminates gaps.

The technical scheme of the invention is as follows:

a cubic star separation gap compensation mechanism comprises a guide slide rail, a single-end stud, a baffle frame, a double-pass hexagonal copper column, a screw rod, a nut, a gasket, a spring, a pressure spring, a connecting rod, a spring supporting block, a clamping block, a stepped shaft, a fixed seat, a bearing retainer ring, a gasket, a nut, a bearing and other accessories.

The guide slide rail is provided with a slotted hole, so that the clamping block can penetrate through the slotted hole and is tightly pressed on the satellite bearing frame.

The stud component comprises a two-way hexagonal copper column, a screw rod, a nut, a gasket and a compression spring, the two-way hexagonal copper column penetrates through the top frame and a circular hole corresponding to the bottom frame, the two-way hexagonal copper column is installed at the upper end of the screw rod and is in contact with the hatch cover through the corresponding circular hole of the top frame, the two-way hexagonal copper column is pressed after the hatch cover is closed, and the two-way hexagonal copper column is released after the hatch cover is opened; the screw rod is sequentially provided with a two-way hexagonal copper column, a single nut, a spring supporting block, two nuts, a gasket, a spring pressure spring and a spring supporting block, wherein the two nuts, the gasket, the spring pressure spring and the spring supporting block can repeat multiple groups as required.

The connecting rod is provided with a spring supporting block, the connecting rod and the spring supporting block are fastened through countersunk head screws, and the connecting rod and the star body clamping component are fastened through screws.

Furthermore, the connecting rod is of an L-shaped structure and can be arranged symmetrically to the central symmetrical plane of the separating mechanism.

Furthermore, the spring support block is provided with a through hole, the screw rod can move in the through hole in the opening and closing processes of the hatch cover, meanwhile, the spring support block, the nut and the gasket limit the stroke of the spring compression spring together, the distance between the nut and the spring support block is adjusted according to the satellite mass and the received working condition, and therefore the pressing force on the cube satellite is adjusted.

Furthermore, the spring supporting block is of a triangular structure, so that a stabilizing effect is achieved, and the internal space is saved.

The star clamping assembly comprises a clamping block, a stepped shaft, a fixed seat, a bearing retainer ring, a gasket, a nut and a bearing, wherein the clamping block penetrates through a slotted hole of the guide sliding rail to clamp and release the star, and the stepped shaft penetrates through one side of the fixed seat, the bearing retainer ring, the other side of the fixed seat and the gasket in sequence and is fastened through the nut.

Furthermore, the clamping block is internally provided with an inclined groove, and the bearing rotates in the inclined groove.

Furthermore, the clamping block is outwards provided with a protruding structure, and the protruding structure penetrates through a slotted hole of the guide sliding rail and clamps the quadrat.

Furthermore, the fixing seat is provided with a counter bore for axially limiting the stepped shaft, and the other end of the fixing seat is axially limited by a nut.

Furthermore, the stepped shaft is provided with a shaft shoulder which passes through the countersunk hole of the fixed seat and then is attached to the inner ring of the bearing, so that the bearing can normally rotate.

Furthermore, the bi-pass hexagonal copper column is in threaded connection with the screw, the bottom of the bi-pass hexagonal copper column is provided with a nut for positioning the bi-pass hexagonal copper column, the hatch cover is a flip cover, the hatch cover is positioned at the uppermost part of the whole mechanism, a counter bore is formed in the hatch cover, a gap is reserved between the hatch cover and the counter bore, and the bi-pass hexagonal copper column can be tightly pushed when the flip cover is closed;

the spring supporting block is connected with the connecting rod through a screw, and the screw penetrates through a through hole of the spring supporting block to play a role in positioning the screw; the clamping block is contacted with the bearing, the stepped shaft clamps and positions the bearing through the nut and the bearing retainer ring, and the bearing is limited to move towards the two sides of the inclined plane of the clamping block; the clamping block frame is fixedly connected with the clamping block fixing seat through a screw, so that the clamping block fixing seat and the clamping block fixing seat are fixed and can move together.

Furthermore, the guide slide rail is provided with a slotted hole, so that the clamping block can penetrate through the slotted hole and is tightly pressed on the satellite bearing frame.

The guide assembly comprises a top frame, a middle frame, a bottom frame and a guide block, wherein the top frame, the middle frame and the bottom frame are fastened with a guide sliding rail through screws, and the guide block is installed on the middle frame and provides guiding and limiting effects when the connecting rod moves.

The single-end stud is connected with the side skin through a screw, and the other end of the single-end stud is connected with the sliding rail to fix the sliding rail; the blocking frame is fixed with the front skin and the side skin through screws, and the other side of the blocking frame is connected with the guide sliding rail through screws to fix the sliding rail. The skin assembly comprises a side skin and a front skin, and can be fastened by screws through single-end studs and threaded holes in the baffle frame. The device plays a role in protecting and supporting the intra-satellite assembly.

The cubic star is locked in the separating mechanism, and the clamping block is in a static state under the combined action of a bearing, a connecting rod, a spring compression spring, a stepped shaft and the like. The clamping block is in contact with the bearing, the step shaft clamps and positions the bearing through the nut and the bearing retainer ring, the bearing is limited to move towards the two sides of the inclined plane of the clamping block, the connecting rod penetrates through the through hole of the clamping spring supporting block and penetrates through the spring compression spring and is fixed with the gasket through the nut, the connecting rod can transmit downward force of the cabin cover to the spring compression spring at the moment, the spring compression spring transmits the force to the clamping spring supporting block, the clamping spring supporting block and the clamping connecting rod clamping block fixing seat transmit the force to the step shaft of the clamping block together, the step shaft transmits the force to the bearing, and the bearing compresses the clamping block to clamp the cube star.

The compensation process of the cubic star separation gap compensation mechanism comprises the following steps: the cabin cover is provided with an electric connector interface and an electromagnetic switch, when the electric connector receives a separated electric signal and an electric signal comes from an external power supply, magnetism opposite to the permanent magnet can be generated, the magnetic force of the permanent magnet disappears, the switch is opened, and the cabin cover is ejected by the two-way hexagonal copper column. The separating mechanism is opened, the spring and the pressure spring are loosened, the bearing moves upwards along the inclined plane of the groove of the clamping block, the clamping block is retracted to form a gap with the cubic star, the bi-pass hexagonal copper column is jacked upwards, and the cubic star can be safely ejected at the moment. The stiffness coefficient of the spring and the pressure spring is moderate, and a margin is reserved, so that the range of linear elasticity cannot be exceeded.

The spring support block is fixedly connected with the connecting rod, the spring support block is provided with a first threaded hole and a second threaded hole which are threaded holes matched with the connecting rod, the spring support block is provided with a through hole which is matched with the screw rod, a gap is reserved between the spring support block and the screw rod, and friction force is reduced.

Furthermore, the clamping block is designed to be a groove inclined surface, and is in point contact with the bearing, so that friction force is reduced.

The connecting rod is L-shaped, is provided with a first threaded hole, a third threaded hole, a fifth threaded hole and a sixth threaded hole, and is used for connecting the threaded holes of the spring supporting block, so that the spring supporting block and the spring supporting block can be stably combined, and stress concentration is reduced.

The bearing is clamped by the stepped shaft and the bearing retainer ring together, and only one nut is used for fixing, so that the bearing is convenient to disassemble and replace.

Furthermore, the point of contact between the bearing and the clamping block is a moving point, the bottom frame spring connection position is a fixed system, the connecting rod is a moving system, the absolute motion direction is along the normal direction of the inclined plane groove of the clamping block, the relative motion is along the normal direction of the protrusion of the clamping block, the linkage motion is in a vertical downward direction, and the acceleration direction is along each force direction to form a force vector triangle. Meanwhile, the bevel angle is reasonable in design and is calculated to be within the locking range at the moment according to the force balance relation.

And in a recovery stage after the ground test is finished:

after the cabin cover opening test is completed, a ground technician closes the cabin cover, the two-way hexagonal copper column is pressed downwards by the cabin cover, the screw rod drives the nut and the gasket to move downwards, the spring pressure spring is compressed, meanwhile, the connecting rod and the fixing seat move downwards together and drive the bearing to rotate, the bearing presses the clamping block downwards to enable the clamping block to do inclined motion, at the moment, the inner cube star is taken out, and the spring pressure spring is in a compressed state.

Further, after the cabin cover opening test is completed, if the test is not carried out within a period of time, the bi-pass hexagonal copper cylinder is taken down, the flip cover is closed at the moment, the spring and the pressure spring cannot be compressed, and the service life of the spring and the pressure spring can be prolonged to a certain extent.

Further, the non-threaded section on the surface of the screw is polished in order to reduce the friction force between the screw and the spring support block.

The working principle is as follows: when the flip cover is closed, the two-way hexagonal copper cylinder is pressed downwards by the top cover, the screw drives the nut and the gasket to move downwards, the spring is compressed, meanwhile, the clamping connecting rod and the clamping block fixing seat move downwards together and drive the bearing to rotate, the bearing presses the clamping block downwards to enable the clamping block to do inclined movement, pressure is generated on the cubic star in the X direction and the Z direction, the structure is a symmetrical structure, the four parts can generate clamping force, and the clearance between the cubic star and the sliding rail is compensated. When the flip cover is opened, the spring pressure spring is loosened, the bearing moves upwards along the inclined plane of the groove of the clamping block, the clamping block is retracted, the gap bi-pass hexagonal copper column is generated with the cubic star and is jacked upwards, and the cubic star can be safely ejected at the moment.

The invention has the beneficial effects that:

1. the structure is simple, the pressing force on the star body is adjustable, and the control is convenient;

2. the gap compensation effect is obvious, and the method can be suitable for various occasions;

3. the original separation mechanism is slightly changed;

4. all the parts are of symmetrical structures, and vibration damage in the process of launching the cube star can be effectively reduced after the parts are symmetrically arranged.

The invention is further illustrated by the following figures and examples.

Drawings

FIG. 1 is an exploded view of a cube-satellite separation gap compensation mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of the present invention during launch;

FIG. 3 is a schematic view of the present invention at the hatch cover reaching a limit;

FIG. 4-1 is a schematic view of the structural force analysis of the present invention;

FIG. 4-2 is a schematic view of the star clamp assembly of the present invention

FIG. 5 is a schematic view of a spring compression spring according to the present invention;

FIG. 6-1 is a schematic front view of a clamp spring support block of the present invention;

FIG. 6-2 is a schematic side view of a clamp spring support block of the present invention

FIG. 7 is a schematic view of a screw according to the present invention;

FIG. 8 is a schematic view of a clamp link of the present invention;

FIG. 9 is a schematic view of a bearing of the present invention;

FIG. 10-1 is a side schematic view of a clamping block of the present invention;

FIG. 10-2 is a schematic front view of a clamping block of the present invention;

FIG. 11 is a schematic view of a skin of the present invention;

FIG. 12 is a schematic diagram of a cube star structure

Wherein: the method comprises the following steps of 1-guiding slide rails, 2-single-end studs, 3-baffle frames, 4-double-pass hexagonal copper cylinders, 5-screws, 6-nuts, 7-gaskets, 8-spring compression springs, 9-connecting rods, 10-spring supporting blocks, 11-star clamping components, 12-top frames, 13-middle frames, 14-bottom frames, 15-guiding blocks, 16-side skins, 17-cabin covers and 18-front skins.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.

Example 1

As shown in fig. 1-12, a cubic star separation gap compensation mechanism comprises a guide slide rail 1, a single-end stud 2, a baffle frame 3, a double-pass hexagonal copper column 4, a screw rod 5, a nut 6, a gasket 7, a spring compression spring 8, a connecting rod 9, a spring supporting block 10, a clamping block 11-1, a stepped shaft 11-2, a fixed seat 11-3, a bearing retainer ring 11-4, a gasket 11-5, a nut 11-6, a bearing 11-7 and other accessories.

The guide slide rail 1 is provided with a slotted hole, so that the clamping block can penetrate through the slotted hole and is tightly pressed on the satellite bearing frame.

The stud component penetrates through a circular hole corresponding to the top frame and the bottom frame and comprises a double-pass hexagonal copper column 4, a screw rod 5, a nut 6, a gasket 7 and a compression spring 8, the double-pass hexagonal copper column 4 is installed at the upper end of the screw rod 5 and is in contact with a cabin cover 17 through the corresponding circular hole of the top frame 12, the double-pass hexagonal copper column 4 is pressed after the cabin cover 17 is closed, and the double-pass hexagonal copper column 4 is released after the cabin cover 17 is opened; the screw rod 5 is sequentially provided with a double-way hexagonal copper column 4, a single nut 6, a spring supporting block 10, a double nut 6, a gasket 7, a spring compression spring 8 and a spring supporting block 10, wherein the double nut 6, the gasket 7, the spring compression spring 8 and the spring supporting block 10 can be repeatedly arranged in multiple groups according to requirements.

The connecting rod 9 is provided with a spring supporting block 10, the connecting rod 9 and the spring supporting block 10 are fastened through countersunk screws, and the connecting rod and the star body clamping component are fastened through screws.

The connecting rod is of an L-shaped structure and can be symmetrical to a central symmetry plane of a separating mechanism (the separating mechanism is a device which can reliably connect a satellite and a rocket and can reliably separate the satellite and the rocket after the satellite enters the orbit, the invention is a part of a cubic satellite separating mechanism, and the mechanism comprises a semicircular turntable, a flip limiting long plate, a limiting tension spring, an electromagnetic switch, a nylon rotating shaft sleeve, a detection circuit, a torsion spring, a tension spring, a pressure spring, a spring supporting plate, a star pushing platform assembly, a flip rotating shaft, a top frame baffle plate, a side surface sealing plate, an internal sealing plate, an electrical interface, a butt joint block, and matched screws, studs, nuts and the like besides all the components mentioned in the text).

The spring support block 10 is provided with a through hole, the screw 5 can move in the through hole in the opening and closing process of the hatch 17, meanwhile, the spring support block 10, the nut 6 and the gasket 7 limit the stroke of the spring compression spring 8 together, the distance between the nut 6 and the spring support block 10 can be adjusted according to the mass of the satellite and the received working conditions, and therefore the pressing force of the cube satellite (the cube is a low-cost pico-satellite adopting the international general standard, is divided by taking 'U' as a standard unit, and the '1U' cube is 10cm multiplied by 10cm, on the basis, the pressing force of the cube can be expanded to be 20cm multiplied by 10cm, namely '2U' to 30cm multiplied by 20cm, namely '12U', as shown in figure 12).

The spring support block 10 is of a triangular structure, so that a stabilizing effect is achieved, and the internal space is saved.

The star clamping assembly comprises a clamping block 11-1, a stepped shaft 11-2, a fixed seat 11-3, a bearing retainer ring 11-4, a gasket 11-5, a nut 11-6 and a bearing 11-7, wherein the clamping block 11-1 penetrates through a slotted hole of a guide sliding rail 1 to clamp and release the star, the stepped shaft 11-2 sequentially penetrates through one side of the fixed seat 11-3, the bearing 11-7, the bearing retainer ring 11-4, the other side of the fixed seat 11-3 and the gasket 11-5, and finally the star is fastened through the nut 11-6.

An inclined groove is formed in the clamping block 11-1, and the bearing 11-7 rotates in the inclined groove.

The clamping block 11-1 is provided with a protruding structure outwards, and the protruding structure penetrates through a slotted hole of the guide sliding rail 1 and clamps the square star.

The fixed seat 11-3 is provided with a counter bore for axially limiting the stepped shaft 11-2, and the other end of the fixed seat is axially limited by a nut 11-6.

The stepped shaft 11-2 is provided with a shaft shoulder which passes through the countersunk hole of the fixed seat 11-3 and then is attached to the inner ring of the bearing, so that the bearing can normally rotate.

The bi-pass hexagonal copper column 4 is in threaded connection with the screw rod 5, the bottom of the bi-pass hexagonal copper column is provided with a nut, the bi-pass hexagonal copper column 4 is positioned, the hatch cover 17 is a flip cover, the hatch cover is positioned at the uppermost part of the whole mechanism, a counter bore is formed, a gap is reserved, and the bi-pass hexagonal copper column 4 can be tightly pushed when the flip cover is closed;

the spring supporting block 10 is connected with the connecting rod 9 through a screw, and the screw 5 penetrates through a through hole of the spring supporting block 10 to play a positioning role on the screw; the clamping block 11-1 is in contact with the bearing 11-7, the stepped shaft 11-2 clamps and positions the bearing 11-7 through the nut 11-6 and the bearing retainer ring, and the bearing is limited to move towards the two sides of the inclined plane of the clamping block; the clamping block frame 3 is fixedly connected with the clamping block fixing seat 11-3 through a screw, so that the clamping block fixing seat and the clamping block fixing seat are fixed and can move together.

The guide slide rail 1 is provided with a slotted hole, so that the clamping block 11 can penetrate through the slotted hole and is tightly pressed on the satellite bearing frame.

The guide assembly comprises a top frame 12, a middle frame 13, a bottom frame 14 and a guide block 15, wherein the top frame 12, the middle frame 13 and the bottom frame 14 are fastened with the guide sliding rail 1 through screws, and the guide block is installed on the middle frame 13 and provides guiding and limiting functions when the connecting rod moves.

The single-end stud 2 is connected with the side skin 16 through a screw, and the other end of the single-end stud is connected with the sliding rail 1 to fix the sliding rail; the baffle frame 3 is fixed with the front skin 18 and the side skin 16 through screws, and the other side of the baffle frame is connected with the guide slide rail 1 through screws, so that the slide rail 1 is fixed. The skin assembly comprises a side skin 16 and a front skin 18, and can be fastened by screws through single-headed studs and threaded holes on a stop frame. The device plays a role in protecting and supporting the intra-satellite assembly.

As shown in fig. 2, which is a schematic diagram of a launching stage of a cubic star separation gap compensation mechanism, a cubic star is locked inside the separation mechanism, and a clamping block 11-1 is in a static state under the combined action of a bearing 11-7, a connecting rod 9, a spring and compression spring 8, a stepped shaft 11-2 and the like. The clamping block 11-1 is in contact with the bearing 11-7, the stepped shaft 11-2 clamps and positions the bearing 11-7 through the nut 11-6 and the bearing retainer ring 11-4 to limit the bearing to move towards two sides of the inclined plane of the clamping block, the connecting rod 9 penetrates through a through hole of the clamping spring supporting block 10 and penetrates through the spring compression spring 8 and is fixed with the gasket through the nut, the connecting rod 9 can transmit the downward force of the cabin cover 17 to the spring compression spring 8 at the moment, the spring compression spring 8 transmits the force to the clamping spring supporting block 10, the clamping spring supporting block 10 and the clamping connecting rod 9 clamping block fixing seat 11 transmit the force to the stepped shaft 11-2 of the clamping block together, the stepped shaft 11-2 transmits the force to the bearing 11-7, and the bearing 11-7 compresses the clamping block 11-1 to clamp the cube star.

The compensation process of the cubic star separation gap compensation mechanism comprises the following steps: as shown in fig. 2-4, the hatch 17 is provided with an electric connector interface and an electromagnetic switch, when the electric connector receives a separated electric signal and an electric signal from an external power supply, the electric connector generates magnetism opposite to that of the permanent magnet, the magnetic force of the permanent magnet disappears, the switch is opened, and the hatch 17 is jacked up and bounced by the double-pass hexagonal copper column 4. The separating mechanism is opened, the spring and the pressure spring 8 are loosened, the bearing 11-7 moves upwards along the inclined plane of the groove of the clamping block 11-1, the clamping block 11-1 is retracted to form a gap with the cubic star, the bi-pass hexagonal copper column 4 is jacked upwards, and the cubic star can be safely ejected at the moment. As shown in figure 5, the stiffness coefficient of the spring compression spring 8 is moderate, and a margin is left, so that the linear elasticity range cannot be exceeded.

The nut 11-6 and the gasket 11-5 are optional and can be increased or decreased according to actual needs. The position of the star clamping assembly 11 is shown in figure 2, the detailed exploded view is shown in figure 4-2, the star clamping assembly is connected with a clamping block stepped shaft 11-2, and the star clamping assembly, the bearing retainer ring 11-4 and a clamping block fixing seat 11-3 press an outer ring of a bearing 11-7 together to limit the star clamping assembly to move in the directions of two sides of the clamping block 11.

As shown in fig. 6, the spring support block 10 is fixedly connected with the connecting rod 9, the spring support block 10 is provided with a first threaded hole 10-1 and a second threaded hole 10-2, the first threaded hole and the second threaded hole are threaded holes matched with the connecting rod 9, the spring support block 10 is provided with a through hole 10-3, the through hole is matched with the screw 5, a gap is formed between the through hole and the screw 5, and friction is reduced.

The clamping block 11-1 is designed to be a groove inclined surface, and is in point contact with the bearing 11-7, so that friction force is reduced.

Referring to fig. 7, the connecting rod 9 is designed in an L shape, and is provided with a first threaded hole 9-1, a third threaded hole 9-3, a fifth threaded hole 9-5, and a sixth threaded hole 9-6 for connecting with the threaded holes of the spring support block 10, so that the two can be firmly combined, and stress concentration is reduced.

As shown in FIG. 9, the bearing 11-7 is a standard component and is clamped by the stepped shaft 11-2 and the bearing retainer ring 11-4 together, and only one nut is used for fixing, so that the disassembly and replacement are convenient.

As shown in fig. 4, the point where the bearing 11-7 contacts the clamping block 11-1 is a moving point, the bottom frame spring connection point is a fixed system, the connecting rod 9 is a moving system, the absolute movement direction is along the normal direction of the inclined plane groove of the clamping block 11-1, the relative movement is along the normal direction of the protrusion of the clamping block 11-1, the coupling movement is a vertical downward direction, and the acceleration direction is along each force direction, thereby forming a force vector triangle. Meanwhile, the bevel angle is reasonable in design and is calculated to be within the locking range at the moment according to the force balance relation.

And in a recovery stage after the ground test is finished:

after the floor technician completes the hatch cover opening test, the hatch cover 17 is closed, the two-way hexagonal copper column 4 is pressed downwards by the hatch cover 17, the screw 5 drives the nut 6 and the gasket 7 to move downwards, so that the spring compression spring 8 is compressed, meanwhile, the connecting rod 9 and the fixed seat 11-3 move downwards together and drive the bearing to rotate, the bearing 11-7 presses the clamping block 11-1 downwards, so that the clamping block is inclined, at the moment, the inner cube is taken out, and the spring compression spring 8 is in a compressed state.

After the cabin cover opening test is completed, if the test is not carried out any more in time, the bi-pass hexagonal copper column 4 can be taken down, the flip cover is closed at the moment, the spring pressure spring 8 cannot be compressed, and the service life of the spring pressure spring can be prolonged to a certain extent.

As shown in fig. 7, the non-threaded section of the surface of the screw 5 is polished to reduce the friction between the screw 5 and the spring support block 10.

The working principle of the invention is as follows:

when the flip cover is closed, the two-way hexagonal copper cylinder is pressed downwards by the top cover, the screw drives the nut and the gasket to move downwards, the spring is compressed, meanwhile, the clamping connecting rod and the clamping block fixing seat move downwards together and drive the bearing to rotate, the bearing presses the clamping block downwards to enable the clamping block to do inclined movement, pressure is generated on the cubic star in the X direction and the Z direction, the structure is a symmetrical structure, the four parts can generate clamping force, and the clearance between the cubic star and the sliding rail is compensated. When the flip cover is opened, the spring pressure spring is loosened, the bearing moves upwards along the inclined plane of the groove of the clamping block, the clamping block is retracted, the gap bi-pass hexagonal copper column is generated with the cubic star and is jacked upwards, and the cubic star can be safely ejected at the moment.