CN113236644B - A device and equipment for preventing drifting of equipment in a microgravity environment - Google Patents
A device and equipment for preventing drifting of equipment in a microgravity environment Download PDFInfo
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- CN113236644B CN113236644B CN202110512336.6A CN202110512336A CN113236644B CN 113236644 B CN113236644 B CN 113236644B CN 202110512336 A CN202110512336 A CN 202110512336A CN 113236644 B CN113236644 B CN 113236644B
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- 230000005486 microgravity Effects 0.000 title claims abstract description 17
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 14
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- 235000019994 cava Nutrition 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 9
- 230000036316 preload Effects 0.000 description 23
- 238000012360 testing method Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 239000000725 suspension Substances 0.000 description 8
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- 230000001133 acceleration Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
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Abstract
The invention relates to an equipment anti-floating device and equipment in a microgravity environment, wherein the anti-floating device comprises an anti-floating assembly and a guiding and positioning assembly, the anti-floating assembly comprises a locking pin column and an anti-floating guide sleeve, the anti-floating guide sleeve is provided with a locking through hole, and the locking pin column can axially move and is inserted into the locking through hole; the guide positioning assembly comprises a guide sleeve and a guide pin column, a guide through hole is formed in the guide sleeve, and the guide pin column can be axially inserted into the guide through hole; the height of the guide pin is greater than that of the locking pin. The anti-floating component and the guiding and positioning component are combined and used in a set, so that the positioning, guiding and anti-floating functions are realized, the guiding and positioning component realizes coarse positioning of equipment, and the equipment can rotate by taking the axis of the guiding pin column as a shaft and can also translate along the axial direction of the guiding pin shaft. The guide pin column guide equipment is continuously matched with the anti-floating component for installation (the height of the guide pin column is greater than that of the locking pin column), and at the moment, the anti-floating guide sleeve on the equipment and the locking pin column finish fine positioning.
Description
Technical Field
The invention relates to the technical field related to microgravity environments, in particular to an anti-floating device and equipment in a microgravity environment.
Background
The anti-floating locking device under the microgravity environment is generally applied to the field of manned aerospace, when equipment needs to be operated, maintained and replaced on orbit by a astronaut, particularly when equipment outside a cabin is maintained and replaced, after the fastening screw (device) of the equipment is loosened by the tool of the astronaut, the equipment can be influenced by initial acceleration under the microgravity environment, the equipment has the risk of floating away without hands, the equipment is lost, a task fails, space rubbish is formed, and the like, so that the safety of the spacecraft and the astronaut is influenced, in order to more reliably complete the maintenance operation and replacement work on orbit by the astronaut, the equipment to be maintained and replaced needs to be correspondingly prevented from floating and is installed and positioned.
At present, the anti-floating device for on-orbit maintenance and replacement of space products in China is basically not verified on-orbit.
Disclosure of Invention
In order to solve one or more of the above technical problems, the present invention provides an anti-floating assembly, an anti-floating guiding device and an apparatus under microgravity environment.
The technical scheme for solving the technical problems is as follows: an equipment anti-floating device in a microgravity environment comprises an anti-floating assembly and a guiding and positioning assembly, wherein the anti-floating assembly comprises a locking pin column and an anti-floating guide sleeve, the anti-floating guide sleeve is provided with a locking through hole, and the locking pin column can be axially inserted into the locking through hole in a movable manner; the guide positioning assembly comprises a guide sleeve and a guide pin column, a guide through hole is formed in the guide sleeve, and the guide pin column can be axially inserted into the guide through hole in a movable manner; the height of the guide pin column is greater than that of the locking pin column.
The invention has the beneficial effects that: the anti-floating component and the guiding and positioning component are combined and used in a set, so that the positioning, guiding and anti-floating functions are realized, the guiding and positioning component realizes the coarse positioning of equipment, and at the moment, the equipment can rotate by taking the axis of the guiding pin column as a shaft and can also translate along the axial direction of the guiding pin shaft. The guide pin column guide equipment is continuously matched with the anti-floating component for installation (the height of the guide pin column is greater than that of the locking pin column), and at the moment, the anti-floating guide sleeve on the equipment and the locking pin column finish fine positioning.
The anti-floating device disclosed by the invention is a device capable of realizing anti-floating positioning in a microgravity environment, is provided with corresponding standardized and modularized interface design according to the characteristics of equipment to be prevented from floating, is light and simple in structure, can be correspondingly adjusted according to the requirement of locking force, and can meet the on-orbit anti-floating positioning requirements of various equipment. The device can meet the system ergonomics (operating force and frictional damping sense) of astronauts, and can improve the efficiency and safety of on-orbit maintenance operation and equipment replacement of the astronauts.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, be equipped with first pretension piece on the locking through-hole inside wall, what the locking round pin post can axial displacement inserts and establishes in the locking through-hole and carry out the pretension under the effect of first pretension piece.
The beneficial effect of adopting the further scheme is that: the locking pin column in the anti-floating guide sleeve is pre-tightened through the first pre-tightening piece, the whole device can only translate along the axis of the guide pin column until the product is installed in place, and the efficiency of the device during on-track maintenance and replacement is improved.
Further, first pretension piece includes the bulb plunger, the locking groove has been seted up on the locking through-hole inside wall, the bulb plunger passes through the elastic component to be connected in the locking groove.
The beneficial effect of adopting the further scheme is that: the elastic piece is used for propping against the end face of the ball plunger, and the elastic piece of the ball plunger is compressed by the locking pin column for pre-tightening; the axial pretightening force of a single ball plunger is determined by the elastic piece, and different elastic pieces can be selected according to the magnitude of the operating force to realize corresponding pretightening force.
Further, the elastic element comprises a spring, and the ball plunger comprises a spherical steel ball.
The beneficial effect of adopting the further scheme is that: the more the spring is compressed, the larger the friction force between the spherical steel ball on the end surface and the locking pin column is, the larger the operating force is, and the better the anti-floating effect is.
Furthermore, be equipped with a plurality of first pretension pieces on the locking through-hole inside wall, it is a plurality of first pretension piece is followed locking through-hole inside wall circumference evenly distributed.
The beneficial effect of adopting the further scheme is that: so that the locking pin column in the locking through hole is stressed uniformly and stably.
Further, a titanium carbide coating is arranged on the locking pin column.
The beneficial effect of adopting the further scheme is that: the surface of the locking pin column is treated by the titanium carbide coating, so that the hardness is improved, the locking pin column is more wear-resistant (has a certain friction coefficient) and corrosion-resistant, and meanwhile, the locking pin column can prevent cold welding, and has the advantages of long service life and high reliability.
Furthermore, a first connecting seat is fixed at one end of the locking pin column, and the surface of the other end of the locking pin column is a conical cambered surface.
The beneficial effect of adopting the further scheme is that: the locking pin column can conveniently penetrate through the locking through hole.
Furthermore, the position that the locking round pin post is close to one end is equipped with the first location of round and caves in, first location is sunken to include indent cambered surface structure or square groove structure or indent conical surface structure.
The beneficial effect of adopting the further scheme is that: after the locking pin column penetrates into the locking through hole, the locking piece can be positioned in the positioning recess, and the positioning effect is further enhanced.
Furthermore, a second pre-tightening piece is arranged on the inner side wall of the guide through hole, and the guide pin column can axially move and is inserted into the guide through hole and pre-tightened under the action of the second pre-tightening piece.
Furthermore, a circle of second positioning recess is arranged at a position, close to one end, of the guide pin column, and the second positioning recess comprises an inwards concave cambered surface structure or a square groove structure or an inwards concave conical surface structure.
The beneficial effect of adopting the further scheme is that: after the guide pin post penetrates into the guide through hole, the guide locking piece can be positioned in the second positioning recess, and the positioning effect is further enhanced.
The equipment comprises the anti-floating device, an equipment body and an assembly bottom plate, wherein the locking pin column and the guide pin column are respectively installed on the assembly bottom plate, the anti-floating guide sleeve and the guide sleeve are respectively installed on the equipment body, the locking through hole in the anti-floating guide sleeve is correspondingly arranged with the locking pin column, and the guide through hole in the guide sleeve is correspondingly arranged with the guide pin column.
The invention has the beneficial effects that: according to the equipment, due to the arrangement of the anti-floating device, when the equipment is used, due to the action of friction force between the anti-floating guide sleeve and the locking pin column, the equipment body cannot drift away out of control to cause safety accidents under a microgravity environment.
Drawings
FIG. 1a is a schematic front view of a locking pin according to a first embodiment of the present invention;
FIG. 1b is a schematic top view of a locking pin according to a first embodiment of the present invention;
fig. 2a is a schematic front view of a locking pin according to a second embodiment of the present invention;
FIG. 2b is a schematic top view of a second embodiment of a locking pin of the present invention;
fig. 3a is a schematic front view of a third embodiment of a locking pin according to the present invention;
FIG. 3b is a schematic top view of a third embodiment of a locking pin of the present invention;
FIG. 4a is a schematic front view of a float guard according to a first embodiment of the present invention;
FIG. 4b is a schematic cross-sectional view of a first embodiment of the float guard of the present invention;
FIG. 5a is a schematic structural view of a second embodiment of the float guard according to the present invention;
FIG. 5b is a schematic cross-sectional view of a second embodiment of the float guard of the present invention;
fig. 6a is a schematic perspective exploded view of the anti-drift assembly of the present invention;
FIG. 6b is a schematic perspective view of the anti-drift assembly of the present invention;
FIG. 7 is a schematic view of a first preload member of the present invention;
FIG. 8a is a schematic front view of a guide pin according to a first embodiment of the present invention;
FIG. 8b is a schematic top view of a guide pin according to a first embodiment of the present invention;
FIG. 9a is a schematic front view of a guide pin according to a second embodiment of the present invention;
FIG. 9b is a schematic top view of a second guide pin embodiment of the present invention;
fig. 10 is a schematic view of the application state of the anti-drift assembly and the guiding assembly on the device.
In the drawings, the components represented by the respective reference numerals are listed below:
1. locking the pin; 11. a first positioning recess; 2. a floating-proof guide sleeve; 21. locking the through hole; 22. a locking groove; 3. a first preload member; 31. a ball plunger; 32. a spring; 33. an adjustment ring; 4. a first connecting seat;
5. a guide pin; 51. a second positioning recess; 6. a guide sleeve; 7. a second connecting seat;
8. an apparatus body; 81. and assembling the bottom plate.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 a-10, an apparatus anti-floating device in a microgravity environment comprises an anti-floating assembly and a guiding and positioning assembly, wherein the anti-floating assembly comprises a locking pin column 1 and an anti-floating guide sleeve 2, the anti-floating guide sleeve 2 is provided with a locking through hole 21, and the locking pin column 1 can be axially inserted into the locking through hole 21; the guide positioning assembly comprises a guide sleeve 6 and a guide pin 5, a guide through hole is formed in the guide sleeve 6, and the guide pin 5 can be axially inserted into the guide through hole in a movable manner; the height of the guide pin 5 is greater than that of the locking pin 1.
The locking pin column 1 and the guide pin column 5 of the embodiment can be of a cylindrical structure or a polygonal prism structure, and the locking through hole 21 and the guide through hole can be of round holes or polygonal holes in adaptive mode.
The assembly that prevents floating and the guide positioning subassembly combination of this embodiment are used in the complete set, can realize preventing floating the function by the frictional resistance that the guide pin bushing that prevents floating and locking round pin post cooperation produced, realize the direction function by the frictional force that guide bushing and guide pin post cooperation produced to realize location, direction, prevent floating the function. The guiding and positioning assembly realizes coarse positioning of the equipment, and at the moment, the equipment can rotate by taking the axis of the guiding pin column as a shaft and can also translate along the axial direction of the guiding pin shaft. The guide pin column guide equipment is continuously matched with the anti-floating component for installation (the height of the guide pin column is greater than that of the locking pin column), and at the moment, the anti-floating guide sleeve on the equipment and the locking pin column finish fine positioning.
The device that prevents floating of this embodiment has carried out corresponding standardized modularization interface design according to the equipment characteristics that will prevent floating, and the structure is light and handy, simple, can carry out corresponding adjustment according to the demand of locking force, and this device can satisfy the on-orbit location demand of preventing floating of various equipment. The device is verified by a suspension test of an astronaut system on the ground, and is safe and reliable. The device also passes sinusoidal vibration, random vibration and impact tests, and has good mechanical resistance.
Example 2
As shown in fig. 1 a-10, an apparatus anti-floating device in a microgravity environment comprises an anti-floating assembly and a guiding and positioning assembly, wherein the anti-floating assembly comprises a locking pin column 1 and an anti-floating guide sleeve 2, the anti-floating guide sleeve 2 is provided with a locking through hole 21, and the locking pin column 1 can be axially inserted into the locking through hole 21; the guide positioning assembly comprises a guide sleeve 6 and a guide pin 5, a guide through hole is formed in the guide sleeve 6, and the guide pin 5 can be axially inserted into the guide through hole in a movable manner; the height of the guide pin 5 is greater than that of the locking pin 1.
The locking pin column 1 and the guide pin column 5 of the embodiment can be of a cylindrical structure or a polygonal prism structure, and the locking through hole 21 and the guide through hole can be of round holes or polygonal holes in adaptive mode.
As shown in fig. 6a and 6b, a first preload member 3 is disposed on an inner sidewall of the locking through hole 21, and the locking pin 1 is axially movably inserted into the locking through hole 21 and is preloaded under the action of the first preload member 3. The locking pin column in the anti-floating guide sleeve is pre-tightened through the first pre-tightening piece, the whole device can only translate along the axis of the guide pin column until the product is installed in place, and the efficiency of the device during on-track maintenance and replacement is improved.
As shown in fig. 7, the first preload member 3 of this embodiment includes a ball plunger 31, a locking groove 22 is formed on an inner side wall of the locking through hole 21, and the ball plunger 31 is connected in the locking groove 22 through an elastic member. The elastic piece is used for propping against the end face of the ball plunger, and the elastic piece of the ball plunger is compressed by the locking pin column for pre-tightening; the axial pretightening force of a single ball plunger is determined by the elastic piece, and different elastic pieces can be selected according to the magnitude of the operating force to realize corresponding pretightening force.
As shown in fig. 7, the elastic member includes a spring 32, the ball plunger 31 includes a ball, and the spring 32 is connected to the ball through an adjusting ring 33. The more the spring is compressed, the larger the friction force between the spherical steel ball on the end surface and the locking pin column is, the larger the operating force is, and the better the anti-floating effect is.
As shown in fig. 6a and 6b, a plurality of first preload pieces 3 are disposed on the inner side wall of the locking through hole 21, and the plurality of first preload pieces 3 are uniformly distributed along the circumferential direction of the inner side wall of the locking through hole 21. So that the locking pin column in the locking through hole is stressed uniformly and stably.
The locking pin column 1 of the embodiment is provided with a titanium carbide coating. The surface of the locking pin column is treated by the titanium carbide coating, so that the hardness is improved, the locking pin column is more wear-resistant (has a certain friction coefficient) and corrosion-resistant, and meanwhile, the locking pin column can prevent cold welding, and has the advantages of long service life and high reliability.
As shown in fig. 1a to 3b, a first connecting seat 4 is fixed at one end of the locking pin 1, and the surface of the other end is a conical cambered surface. The locking pin column can conveniently penetrate through the locking through hole.
As shown in fig. 8a to 9b, a second connecting seat 7 is fixed at one end of the guide pin 5, and the surface of the other end of the guide pin is a tapered arc surface, so that the guide pin can conveniently pass through the guide through hole.
The assembly that prevents floating and the guide positioning subassembly combination of this embodiment are used in the complete set, can realize preventing floating the function by the frictional resistance that the guide pin bushing that prevents floating and locking round pin post cooperation produced, realize the direction function by the frictional force that guide bushing and guide pin post cooperation produced to realize location, direction, prevent floating the function. The guiding and positioning assembly realizes coarse positioning of the equipment, and at the moment, the equipment can rotate by taking the axis of the guiding pin column as a shaft and can also translate along the axial direction of the guiding pin shaft. The guide pin column guide equipment is continuously matched with the anti-floating component for installation (the height of the guide pin column is greater than that of the locking pin column), and at the moment, the anti-floating guide sleeve on the equipment and the locking pin column finish fine positioning.
The device that prevents floating of this embodiment has carried out corresponding standardized modularization interface design according to the equipment characteristics that will prevent floating, and the structure is light and handy, simple, can carry out corresponding adjustment according to the demand of locking force, and this device can satisfy the on-orbit location demand of preventing floating of various equipment. The device is verified by a suspension test of an astronaut system on the ground, and is safe and reliable. The device also passes sinusoidal vibration, random vibration and impact tests, and has good mechanical resistance.
Example 3
As shown in fig. 1 a-10, an apparatus anti-floating device in a microgravity environment comprises an anti-floating assembly and a guiding and positioning assembly, wherein the anti-floating assembly comprises a locking pin column 1 and an anti-floating guide sleeve 2, the anti-floating guide sleeve 2 is provided with a locking through hole 21, and the locking pin column 1 can be axially inserted into the locking through hole 21; the guide positioning assembly comprises a guide sleeve 6 and a guide pin 5, a guide through hole is formed in the guide sleeve 6, and the guide pin 5 can be axially inserted into the guide through hole in a movable manner; the height of the guide pin 5 is greater than that of the locking pin 1.
The locking pin column 1 and the guide pin column 5 of the embodiment can be of a cylindrical structure or a polygonal prism structure, and the locking through hole 21 and the guide through hole can be of round holes or polygonal holes in adaptive mode.
As shown in fig. 6a and 6b, a first preload member 3 is disposed on an inner sidewall of the locking through hole 21, and the locking pin 1 is axially movably inserted into the locking through hole 21 and is preloaded under the action of the first preload member 3. The locking pin column in the anti-floating guide sleeve is pre-tightened through the first pre-tightening piece, the whole device can only translate along the axis of the guide pin column until the product is installed in place, and the efficiency of the device during on-track maintenance and replacement is improved.
As shown in fig. 7, the first preload member 3 of this embodiment includes a ball plunger 31, a locking groove 22 is formed on an inner side wall of the locking through hole 21, and the ball plunger 31 is connected in the locking groove 22 through an elastic member. The elastic piece is used for propping against the end face of the ball plunger, and the elastic piece of the ball plunger is compressed by the locking pin column for pre-tightening; the axial pretightening force of a single ball plunger is determined by the elastic piece, and different elastic pieces can be selected according to the magnitude of the operating force to realize corresponding pretightening force.
As shown in fig. 7, the elastic member includes a spring 32, the ball plunger 31 includes a ball, and the spring 32 is connected to the ball through an adjusting ring 33. The more the spring is compressed, the larger the friction force between the spherical steel ball on the end surface and the locking pin column is, the larger the operating force is, and the better the anti-floating effect is.
As shown in fig. 6a and 6b, a plurality of first preload pieces 3 are disposed on the inner side wall of the locking through hole 21, and the plurality of first preload pieces 3 are uniformly distributed along the circumferential direction of the inner side wall of the locking through hole 21. So that the locking pin column in the locking through hole is stressed uniformly and stably.
The locking pin column 1 of the embodiment is provided with a titanium carbide coating. The surface of the locking pin column is treated by the titanium carbide coating, so that the hardness is improved, the locking pin column is more wear-resistant (has a certain friction coefficient) and corrosion-resistant, and meanwhile, the locking pin column can prevent cold welding, and has the advantages of long service life and high reliability.
As shown in fig. 1a to 3b, a first connecting seat 4 is fixed at one end of the locking pin 1, and the surface of the other end is a conical cambered surface. The locking pin column can conveniently penetrate through the locking through hole.
As shown in fig. 8a to 9b, a second connecting seat 7 is fixed at one end of the guide pin 5, and the surface of the other end of the guide pin is a tapered arc surface, so that the guide pin can conveniently pass through the guide through hole.
Referring to fig. 5a to 7, a second preload piece is disposed on an inner side wall of the guide through hole, and the guide pin 5 is axially movably inserted into the guide through hole and pre-tightened under the action of the second preload piece. The structure and the installation arrangement of the second preload member can be referred to embodiment 2.
The assembly that prevents floating and the guide positioning subassembly combination of this embodiment are used in the complete set, can realize preventing floating the function by the frictional resistance that the guide pin bushing that prevents floating and locking round pin post cooperation produced, realize the direction function by the frictional force that guide bushing and guide pin post cooperation produced to realize location, direction, prevent floating the function. The guiding and positioning assembly realizes coarse positioning of the equipment, and at the moment, the equipment can rotate by taking the axis of the guiding pin column as a shaft and can also translate along the axial direction of the guiding pin shaft. The guide pin column guide equipment is continuously matched with the anti-floating component for installation (the height of the guide pin column is greater than that of the locking pin column), and at the moment, the anti-floating guide sleeve on the equipment and the locking pin column finish fine positioning.
The device that prevents floating of this embodiment has carried out corresponding standardized modularization interface design according to the equipment characteristics that will prevent floating, and the structure is light and handy, simple, can carry out corresponding adjustment according to the demand of locking force, and this device can satisfy the on-orbit location demand of preventing floating of various equipment. The device is verified by a suspension test of an astronaut system on the ground, and is safe and reliable. The device also passes sinusoidal vibration, random vibration and impact tests, and has good mechanical resistance.
Example 4
Example 5
Example 6
As shown in fig. 1 a-10, an apparatus anti-floating device in a microgravity environment comprises an anti-floating assembly and a guiding and positioning assembly, wherein the anti-floating assembly comprises a locking pin column 1 and an anti-floating guide sleeve 2, the anti-floating guide sleeve 2 is provided with a locking through hole 21, and the locking pin column 1 can be axially inserted into the locking through hole 21; the guide positioning assembly comprises a guide sleeve 6 and a guide pin 5, a guide through hole is formed in the guide sleeve 6, and the guide pin 5 can be axially inserted into the guide through hole in a movable manner; the height of the guide pin 5 is greater than that of the locking pin 1.
The locking pin column 1 and the guide pin column 5 of the embodiment can be of a cylindrical structure or a polygonal prism structure, and the locking through hole 21 and the guide through hole can be of round holes or polygonal holes in adaptive mode.
As shown in fig. 6a and 6b, a first preload member 3 is disposed on an inner sidewall of the locking through hole 21, and the locking pin 1 is axially movably inserted into the locking through hole 21 and is preloaded under the action of the first preload member 3. The locking pin column in the anti-floating guide sleeve is pre-tightened through the first pre-tightening piece, the whole device can only translate along the axis of the guide pin column until the product is installed in place, and the efficiency of the device during on-track maintenance and replacement is improved.
As shown in fig. 7, the first preload member 3 of this embodiment includes a ball plunger 31, a locking groove 22 is formed on an inner side wall of the locking through hole 21, and the ball plunger 31 is connected in the locking groove 22 through an elastic member. The elastic piece is used for propping against the end face of the ball plunger, and the elastic piece of the ball plunger is compressed by the locking pin column for pre-tightening; the axial pretightening force of a single ball plunger is determined by the elastic piece, and different elastic pieces can be selected according to the magnitude of the operating force to realize corresponding pretightening force.
As shown in fig. 7, the elastic member includes a spring 32, the ball plunger 31 includes a ball, and the spring 32 is connected to the ball through an adjusting ring 33. The more the spring is compressed, the larger the friction force between the spherical steel ball on the end surface and the locking pin column is, the larger the operating force is, and the better the anti-floating effect is.
As shown in fig. 6a and 6b, a plurality of first preload pieces 3 are disposed on the inner side wall of the locking through hole 21, and the plurality of first preload pieces 3 are uniformly distributed along the circumferential direction of the inner side wall of the locking through hole 21. So that the locking pin column in the locking through hole is stressed uniformly and stably.
The locking pin column 1 of the embodiment is provided with a titanium carbide coating. The surface of the locking pin column is treated by the titanium carbide coating, so that the hardness is improved, the locking pin column is more wear-resistant (has a certain friction coefficient) and corrosion-resistant, and meanwhile, the locking pin column can prevent cold welding, and has the advantages of long service life and high reliability.
As shown in fig. 1a to 3b, a first connecting seat 4 is fixed at one end of the locking pin 1, and the surface of the other end is a conical cambered surface. The locking pin column can conveniently penetrate through the locking through hole.
As shown in fig. 8a to 9b, a second connecting seat 7 is fixed at one end of the guide pin 5, and the surface of the other end of the guide pin is a tapered arc surface, so that the guide pin can conveniently pass through the guide through hole.
Referring to fig. 5a to 7, a second preload piece is disposed on an inner side wall of the guide through hole, and the guide pin 5 is axially movably inserted into the guide through hole and pre-tightened under the action of the second preload piece. The structure and the installation arrangement of the second preload member can be referred to embodiment 2.
Referring to fig. 3a, a circle of second positioning recess 51 is formed at a position of the guide pin 5 near one end, and the second positioning recess 51 includes a square groove structure. After the guide pin post penetrates into the guide through hole, the guide locking piece can be positioned in the inner square groove structure, and the positioning effect is further enhanced.
The assembly that prevents floating and the guide positioning subassembly combination of this embodiment are used in the complete set, can realize preventing floating the function by the frictional resistance that the guide pin bushing that prevents floating and locking round pin post cooperation produced, realize the direction function by the frictional force that guide bushing and guide pin post cooperation produced to realize location, direction, prevent floating the function. The guiding and positioning assembly realizes coarse positioning of the equipment, and at the moment, the equipment can rotate by taking the axis of the guiding pin column as a shaft and can also translate along the axial direction of the guiding pin shaft. The guide pin column guide equipment is continuously matched with the anti-floating component for installation (the height of the guide pin column is greater than that of the locking pin column), and at the moment, the anti-floating guide sleeve on the equipment and the locking pin column finish fine positioning.
The device that prevents floating of this embodiment has carried out corresponding standardized modularization interface design according to the equipment characteristics that will prevent floating, and the structure is light and handy, simple, can carry out corresponding adjustment according to the demand of locking force, and this device can satisfy the on-orbit location demand of preventing floating of various equipment. The device is verified by a suspension test of an astronaut system on the ground, and is safe and reliable. The device also passes sinusoidal vibration, random vibration and impact tests, and has good mechanical resistance.
Example 7
As shown in fig. 10, an apparatus of this embodiment includes the drift prevention device according to any one of embodiments 1 to 6, and further includes an apparatus body 8 and an assembly base plate 81, the locking pin 1 and the guide pin 5 are respectively installed on the assembly base plate 81, the drift prevention guide sleeve 2 and the guide sleeve 6 are respectively installed on the apparatus body 8, the locking through hole 21 on the drift prevention guide sleeve 2 is arranged corresponding to the locking pin 1, and the guide through hole on the guide sleeve 6 is arranged corresponding to the guide pin 5.
In this embodiment, the locking pin 1 and the guiding pin 5 are mounted on the mounting surface of the mounting base plate 81 and belong to fixed ends, and the float-proof guide sleeve 2 and the guiding sleeve 6 are mounted on the device body and belong to separable ends.
When the device of this embodiment is dismantled using the anti-floating device, loosen the loose screw that the device body 8 was installed on assembly plate 81 with general handle and do not take off the screw after, because the frictional force between guide pin bushing and the locking round pin post of preventing floating, perhaps prevent floating the interior bulb plunger of guide pin bushing (provide the spring pretightning force, the spring is in compression state this moment) and the frictional force effect between the locking round pin post of preventing floating, the device body can not fly away because of being in under the microgravity environment and cause the incident out of control.
The operation force of the anti-drift device obtained in examples 2 to 5 was tested as follows:
the test method comprises the following steps: horizontal Czochralski method;
test tool/device: a thin wire (inelastic), a push-pull dynamometer (model: ELK-200, equipment number: 360902466, measuring range: 0-200N, precision 0.1N);
test site: the Chinese academy space application center;
test conditions and data: the working condition (assembly) data of the test are shown in table 1;
the test purpose is as follows: knowing the operating forces of different surface treatment modes of the pin under each working condition (combination), and providing data support for model selection;
TABLE 1 test data of operating force of anti-flutter positioning device
As can be seen from the experimental data obtained in table 1: 1. example 2 (No. 1) the operating force was the minimum, 7N; example 5 (No. 4) the maximum operating force was 19N; 2. the pin column is made of stainless steel, the surface of the pin column is not treated, the surface of the pin column is subjected to titanium carbide cold welding prevention treatment, the operating forces corresponding to the working conditions are different, the pin column is made of the stainless steel, the surface of the pin column is subjected to the titanium carbide treatment, the titanium carbide has a certain lubricating effect, and compared with the stainless steel treatment, the pin column is subjected to the titanium carbide surface treatment, so that the friction coefficient of a contact surface is reduced by about 25%. Different combined working conditions can be selected for use according to specific use conditions without titanium carbide cold welding prevention treatment.
The suspension test is now performed on the apparatus of example 7 as follows:
the test method comprises the following steps: a ground vertical suspension method (counterweight balance gravity method);
test tool/device: the device comprises a binding band (without elasticity), a suspension product, a suspension tool (a lifting platform), a counterweight working platform (comprising a counterweight backpack), a spaceman volunteer and air bearing platform (extravehicular spacesuit), a foot limiter, an electric tool, a universal handle and a movable working platform;
test site: china astronaut scientific research training center;
testing the working condition: the working conditions of the test are divided into equipment disassembly (anti-floating locking) and equipment replacement and installation (guiding and alignment);
the test purpose is as follows: the visibility, accessibility and operability of the astronaut during the process of dismounting and replacing the equipment are verified; the rationality of the operation flow, the magnitude of the operation force, the anti-floating locking and the functional realization of the guiding and positioning (alignment) are verified.
And (4) test conclusion: the functional test items for dismounting by adopting the device of the embodiment 7 are all qualified, and the functions of float-proof locking and guiding positioning are good, so that the requirements are met.
In the description of the present invention, it is to be understood that the terms "axial," "radial," "circumferential," and the like refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (1)
1. The anti-floating equipment in the microgravity environment is characterized by comprising an anti-floating device, an equipment body and an assembly bottom plate;
the anti-floating device comprises an anti-floating assembly and a guiding and positioning assembly, the anti-floating assembly comprises a locking pin column and an anti-floating guide sleeve, a locking through hole is formed in the anti-floating guide sleeve, and the locking pin column can be axially inserted into the locking through hole in a moving mode; the guide positioning assembly comprises a guide sleeve and a guide pin column, a guide through hole is formed in the guide sleeve, and the guide pin column can be axially inserted into the guide through hole in a movable manner; the height of the guide pin column is greater than that of the locking pin column;
the locking pin column and the guide pin column are respectively arranged on the assembly bottom plate, the anti-floating guide sleeve and the guide sleeve are respectively arranged on the equipment body, the locking through hole on the anti-floating guide sleeve is arranged corresponding to the locking pin column, and the guide through hole on the guide sleeve is arranged corresponding to the guide pin column;
the locking pin column can be inserted into the locking through hole in an axially movable manner and pre-tightened under the action of the first pre-tightening piece;
the first pre-tightening piece comprises a ball plunger, a locking groove is formed in the inner side wall of the locking through hole, and the ball plunger is connected into the locking groove through an elastic piece;
the elastic piece comprises a spring, and the ball plunger comprises a spherical steel ball;
the locking pin column is provided with a titanium carbide coating; a first connecting seat is fixed at one end of the locking pin column, and the surface of the other end of the locking pin column is a conical cambered surface;
a plurality of first pre-tightening pieces are arranged on the inner side wall of the locking through hole and are uniformly distributed along the circumferential direction of the inner side wall of the locking through hole;
a circle of first positioning recess is formed in the position, close to one end, of the locking pin column, and the first positioning recess comprises an inwards concave cambered surface structure or an inwards concave conical surface structure;
the inner side wall of the guide through hole is provided with a second pre-tightening piece, and the guide pin column can be axially inserted into the guide through hole in a movable mode and pre-tightened under the action of the second pre-tightening piece;
the position that the uide pin post is close to one end is equipped with round second location and caves in, second location is sunken to include indent cambered surface structure or indent conical surface structure.
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| CN113968363B (en) * | 2021-10-22 | 2024-05-28 | 北京卫星环境工程研究所 | Mounting base for mounting tool outside cabin |
| CN114055409B (en) * | 2021-11-08 | 2022-07-08 | 北京卫星环境工程研究所 | Space on-orbit maintenance electric tool shell used by astronaut wearing clothes |
| CN116119278B (en) * | 2022-12-27 | 2025-11-04 | 中煤科工集团沈阳设计研究院有限公司 | A quick-release pressure roller for a pressure belt conveyor |
| CN115922936A (en) * | 2022-12-29 | 2023-04-07 | 大连连城数控机器股份有限公司 | Follower fixture |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002332127A (en) * | 2001-05-10 | 2002-11-22 | Murata Mach Ltd | Joining mechanism of image forming device |
| DE102008033110A1 (en) * | 2008-07-15 | 2010-01-21 | Bayerische Motoren Werke Aktiengesellschaft | Positioning and fixing unit e.g. plate dowel, has radially running borehole provided in cylindrical body, and spring-loaded locking ball guided for engagement into peripheral groove of pin in radially running borehole |
| CN202492303U (en) * | 2012-03-21 | 2012-10-17 | 中联重科股份有限公司 | Pin shaft mounting structure and engineering machinery |
| CN104972419A (en) * | 2015-06-24 | 2015-10-14 | 镇江佳鑫精工设备有限公司 | Pressing plate combination piece |
| CN205689367U (en) * | 2016-06-17 | 2016-11-16 | 中冶建工集团有限公司 | Guide frame for the assembling of wind power equipment cabin |
| CN109436383A (en) * | 2018-11-23 | 2019-03-08 | 山东航天电子技术研究所 | A kind of positioning lock fixer of electronic equipment replaceable out of my cabin |
| CN112705972A (en) * | 2020-12-17 | 2021-04-27 | 北京航星机器制造有限公司 | Device and method for automatic clamping and secondary positioning of production line products |
-
2021
- 2021-05-11 CN CN202110512336.6A patent/CN113236644B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002332127A (en) * | 2001-05-10 | 2002-11-22 | Murata Mach Ltd | Joining mechanism of image forming device |
| DE102008033110A1 (en) * | 2008-07-15 | 2010-01-21 | Bayerische Motoren Werke Aktiengesellschaft | Positioning and fixing unit e.g. plate dowel, has radially running borehole provided in cylindrical body, and spring-loaded locking ball guided for engagement into peripheral groove of pin in radially running borehole |
| CN202492303U (en) * | 2012-03-21 | 2012-10-17 | 中联重科股份有限公司 | Pin shaft mounting structure and engineering machinery |
| CN104972419A (en) * | 2015-06-24 | 2015-10-14 | 镇江佳鑫精工设备有限公司 | Pressing plate combination piece |
| CN205689367U (en) * | 2016-06-17 | 2016-11-16 | 中冶建工集团有限公司 | Guide frame for the assembling of wind power equipment cabin |
| CN109436383A (en) * | 2018-11-23 | 2019-03-08 | 山东航天电子技术研究所 | A kind of positioning lock fixer of electronic equipment replaceable out of my cabin |
| CN112705972A (en) * | 2020-12-17 | 2021-04-27 | 北京航星机器制造有限公司 | Device and method for automatic clamping and secondary positioning of production line products |
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