CN114474161A - Space station arm compresses tightly seat conversion equipment - Google Patents
Space station arm compresses tightly seat conversion equipment Download PDFInfo
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- CN114474161A CN114474161A CN202210407209.4A CN202210407209A CN114474161A CN 114474161 A CN114474161 A CN 114474161A CN 202210407209 A CN202210407209 A CN 202210407209A CN 114474161 A CN114474161 A CN 114474161A
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- bolt
- extension
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- mechanical arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention provides a conversion device for a space station mechanical arm pressing seat, which comprises a fixing unit and an expansion connecting unit, wherein the fixing unit comprises a shell assembly, a bolt assembly and a quick fixing assembly, the top of the shell assembly is installed on the expansion connecting unit, the bottom of the shell assembly is installed on the space station mechanical arm pressing seat, the front side of the shell assembly is installed on the bolt assembly, and the left side of the shell assembly is installed on the quick fixing assembly. The space station mechanical arm pressing seat conversion device is of an integrated structure, is consistent with the actual use working condition of a space station mechanical arm joint, does not have an additional motion conversion link, reduces transmission errors and is beneficial to obtaining high detection precision; the operation is divided into two parts of fixing and expanding, the work of the fixing unit can be finished only by once clamping, the clamping is automatically carried out after being in place, the extravehicular operation is simple and reliable, the extravehicular operation time of the astronaut is greatly reduced, and the operation intensity is reduced.
Description
Technical Field
The invention belongs to the field of space station application, and particularly relates to a space station mechanical arm pressing seat conversion device.
Background
The space station is composed of three compartments, wherein after the core compartment mechanical arm, the II-quadrant flexible solar wing and the IV-quadrant flexible solar wing are unfolded, a large number of pressing seats and available spaces are reserved. After the two flexible solar wings on the paradise, the paradise mechanical arm and the two flexible solar wings on the dream sky cabin are unfolded, a large number of pressing seats and available spaces are reserved. The compressing seats are converted, so that the compressing seats can be used for fixing large-scale equipment, constructing in-orbit and other tasks, and have very important significance for improving the extravehicular service capability of a large platform of the space station, expanding an extravehicular operation platform and verifying the in-orbit assembly technology. The device for converting the space station mechanical arm pressing seat into the mounting base is required to have the advantages of being simple in operation, high in connection rigidity, convenient for being grasped by astronauts, capable of meeting the requirements of float prevention and ergonomic design, capable of meeting the requirements of space environment adaptability and the like, large in design difficulty, and at present, no relevant device is designed domestically.
Disclosure of Invention
In view of the above, the invention aims to provide a conversion device for a pressing seat of a space station mechanical arm, so that a large number of pressing seats and available spaces are reserved after the mechanical arm of a core cabin of a space station is unfolded, a large extravehicular operation platform is built in order to fully utilize the available spaces, extravehicular service capability of the space station platform is improved, and extravehicular operation of a spacecraft is effectively supported, and the conversion device is designed, and can be used for converting the pressing seat of the space station mechanical arm into a mounting base for fixing large-scale equipment or expanding the large-scale operation platform.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a space station arm compresses tightly seat conversion equipment, includes fixed unit and extension linkage element, fixed unit includes shell subassembly, bolt subassembly and quick fixed subassembly, shell subassembly top is installed to extension linkage element, and the bottom is installed to space station arm and is compressed tightly the seat, and shell subassembly front side is installed to the bolt subassembly, and the left side is installed to quick fixed subassembly, and quick fixed subassembly and space station arm compress tightly seat looks joint.
Further, the shell component comprises a shell body, a locking screw, a universal handrail base, a visual mark and an extension screw thread piece, wherein the shell body is of a cuboid frame structure, the upper part of the shell body is provided with the extension screw thread piece of an integrally formed structure, the extension screw thread piece is of a hollow cylindrical structure, the outer wall of the extension screw thread piece is connected to the extension connecting unit in a threaded manner, a first threaded hole is formed in the extension screw thread piece, the locking screw is arranged in the first threaded hole, the bottom of the locking screw penetrates through the shell body to be mounted to the space station mechanical arm pressing seat, the universal handrail base is mounted on the right side of the shell body, the visual mark is mounted above the universal handrail base, an integrally formed plug pin mounting seat is arranged on the front side of the shell body, a second threaded hole is formed in the inner wall of the rear side of the shell body, the plug pin mounting seat and the second threaded hole are matched with the plug pin component for use, and two fixing mounting plates are symmetrically mounted on the left side of the shell body, two fixed mounting panels set up respectively in quick fixed subassembly both sides.
Furthermore, the bolt mounting seat is of a U-shaped structure, a bolt hole is formed in the middle of the bolt mounting seat, fastening holes are symmetrically formed in the two sides of the outer wall of the bolt mounting seat respectively, and the bolt assembly is mounted in the second threaded hole of the shell body through the bolt hole.
Further, the fixed mounting board is the dysmorphism structure, and the fixed mounting board surface has been seted up round pin shaft hole and shelves pole hole from last to down respectively, and round pin shaft hole and shelves pole hole all use with the cooperation of quick fixed subassembly.
Further, the bolt subassembly includes that handrail base simplifies piece, bolt pole, holding screw, pressure spring and steel ball, bolt pole one end fixed connection simplifies piece to handrail base, and the bolt pole other end is equipped with the external screw thread, and the bolt pole other end loops through the bolt hole, compresses tightly the seat body and sets aside the passageway and install No. two threaded holes to the shell body, and bolt pole other end both sides are equipped with a steel ball respectively, and every steel ball one side demountable installation is to the steel inslot of bolt pole one side, and every steel ball opposite side is connected with a pressure spring respectively, and the pressure spring cup joints to holding screw outer wall, and holding screw and bolt pole, the cooperation of holding hole is used.
Further, the quick fixing component comprises a fixing rod, a pin shaft body, a first spacer bush, a parallel double torsion spring, a second spacer bush, a first gasket, a first shaft elastic retainer ring, a blocking rod body, a second gasket and a second shaft elastic retainer ring, a mounting hole is formed in the middle of the fixing rod, the middle of the pin shaft body is movably sleeved in the mounting hole, the two ends of the middle of the pin shaft body, far away from the mounting hole, are respectively sleeved with the first spacer bush and the second spacer bush, one end of the pin shaft body, close to the second spacer bush, is also respectively provided with the first gasket and the first shaft elastic retainer ring, the outer wall of the first spacer bush and the outer wall of the second spacer bush are respectively sleeved with the two sides of the parallel double torsion spring, two pins of the parallel double torsion spring are respectively and fixedly connected with a blocking rod body, the outer wall of each blocking rod body is respectively sleeved with the second gasket and the second shaft elastic retainer ring, and the pin shaft hole is matched for use, the stop lever body is matched with the stop lever hole for use.
Further, extension coupling unit is including extension direction awl, extension screw post, outer hexagonal and extension internal thread, the extension internal thread is the hollow circular cylinder structure, and outer hexagonal is cup jointed to extension internal thread outer wall fixed, and extension internal thread top is connected to extension direction awl through extension screw post, extension internal thread bottom threaded connection to extension screw.
Compared with the prior art, the space station mechanical arm pressing seat conversion device has the following advantages:
(1) the space station mechanical arm pressing seat conversion device is of an integrated structure, is consistent with the actual use working condition of a space station mechanical arm joint, does not have an additional motion conversion link, reduces transmission errors and is beneficial to obtaining high detection precision; the operation is divided into two parts of fixing and expanding, the work of the fixing unit can be finished only by once clamping, the clamping is automatically carried out after being in place, the extravehicular operation is simple and reliable, the extravehicular operation time of the astronaut is greatly reduced, and the operation intensity is reduced.
(2) According to the conversion device for the pressing seats of the mechanical arms of the space station, the length of the expansion connection unit part can be modified according to requirements, and the conversion device is suitable for all linkage type pressing seats with different heights on the mechanical arms of the space station; the device is small in size, the fixing unit and the expansion connecting unit are both provided with anti-floating holes, and the device is convenient for astronauts to carry outside the cabin; the device has the repeated dismouting function, and one-time operation is not in place, can assemble once more after the adjustment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an exploded view of an overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a housing assembly according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a housing assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a latch assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a quick-attach assembly according to an embodiment of the present invention;
FIG. 6 is a schematic rear view of a quick-attach assembly according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an expansion connection unit according to an embodiment of the present invention;
fig. 8 is a schematic view of a spatial station robot arm pressing base according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of the overall structure according to the embodiment of the present invention;
fig. 10 is a schematic view illustrating an initial state of the mechanical arm pressing seat conversion device according to the embodiment of the present invention;
fig. 11 is a schematic view illustrating an installation process of a fixing portion of a mechanical arm pressing seat conversion device according to an embodiment of the present invention;
FIG. 12 is a schematic view illustrating a fixing portion of a mechanical arm pressing base conversion device according to an embodiment of the present invention being installed in place;
fig. 13 is a schematic view illustrating a state where the locking of the fixing portion of the robot arm pressing base switching device according to the embodiment of the present invention is completed;
fig. 14 is a schematic view illustrating an installation completion effect of an expansion joint of the mechanical arm pressing seat conversion device according to the embodiment of the present invention;
FIG. 15 is a schematic view, partially in section, of a plug assembly pull out housing assembly according to an embodiment of the present invention;
FIG. 16 is a schematic view, partially in section, of a plug assembly according to an embodiment of the present invention inserted into a housing assembly;
FIG. 17 is a schematic partial side cross-sectional view of a plug assembly according to an embodiment of the present invention inserted into a housing assembly.
Description of reference numerals:
1. a fixing unit; 11. a housing assembly; 111. a housing body; 112. locking the screw; 113. a universal armrest base; 114. visual marking; 115. tightening the hole; 116. a pin shaft hole; 117. a rail hole; 118. the shell is provided with a floating-proof hole; 119. an expanding screw; 1110. a pin hole; 1111. a first threaded hole; 1112. a second threaded hole; 12. a plug pin assembly; 121. a handrail base simplification; 122. a latch rod; 123. tightening the screw; 124. a pressure spring; 125. a steel ball; 13. a quick-fixing component; 131. fixing the rod; 132. a pin shaft body; 133. a first spacer bush; 134. a parallel double torsion spring; 135. a second spacer bush; 136. a first gasket; 137. the first shaft elastic check ring; 138. a stopper rod body; 139. a second gasket; 1310. the second shaft elastic retainer ring; 2. an expansion connection unit; 21. expanding a guide cone; 22. expanding the threaded column; 23. an outer hexagon; 24. expanding the anti-floating hole; 25. expanding the internal thread; 3. a space station mechanical arm pressing seat; 31. a pressing seat body; 32. a square hole; 33. a circular hole; 34. and (4) yielding the channel.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 17, a space station mechanical arm pressing base conversion device includes a fixing unit 1 and an expansion connection unit 2, where the fixing unit 1 includes a housing assembly 11, a latch assembly 12 and a quick fixing assembly 13, the top of the housing assembly 11 is installed to the expansion connection unit 2, the bottom of the housing assembly 11 is installed to a space station mechanical arm pressing base 3, the front side of the housing assembly 11 is installed to the latch assembly 12, the left side of the housing assembly is installed to the quick fixing assembly 13, and the quick fixing assembly 13 is connected with the space station mechanical arm pressing base 3 in a clamping manner. In this embodiment, the top of the housing assembly 11 is in threaded sleeve connection with the expansion connection unit 2, the bottom of the housing assembly 11 is fixedly sleeved and connected to the space station mechanical arm pressing seat 3, the front side of the housing assembly 11 is fixedly clamped and connected to the plug pin assembly 12, and the left side of the housing assembly 11 is fixedly clamped and connected to the quick fixing assembly 13.
The invention belongs to the field of space station application, and provides a base which can be used for mounting and fixing large-scale equipment and is used for converting an existing pressing seat, so that the expansion of a mechanical arm pressing seat of a space station can be realized, and the construction of an extravehicular large-scale operation platform is supported, so that the extravehicular service capability of the space station is improved.
The shell assembly 11 comprises a shell body 111, a locking screw 112, a universal handrail base 113, a visual mark 114 and an extension screw member 119, wherein the shell body 111 is of a cuboid frame structure, the upper part of the shell body 111 is provided with the extension screw member 119 of an integrally formed structure, the extension screw member 119 is of a hollow cylindrical structure, the outer wall of the extension screw member 119 is in threaded connection with an extension connecting unit 2, the extension screw member 119 is internally provided with a first threaded hole 1111, the locking screw 112 is arranged in the first threaded hole 1111, the bottom of the locking screw 112 penetrates through the shell body 111 to be installed to a space station mechanical arm pressing seat 3, the universal handrail base 113 is installed on the right side of the shell body 111, the visual mark 114 is installed above the universal handrail base 113, the front side of the shell body 111 is provided with an integrally formed plug pin installation seat, the inner wall of the rear side of the shell body 111 is provided with a second threaded hole 1112, and the plug pin installation seat, No. two screw holes 1112 are all used with bolt assembly 12, and two fixed mounting plates are symmetrically installed on the left side of housing body 111, and two fixed mounting plates are respectively arranged on both sides of quick fixed assembly 13. The surface of the fixed mounting plate is provided with a pin shaft hole 116 and a gear rod hole 117 from top to bottom respectively, and the pin shaft hole 116 and the gear rod hole 117 are matched with the quick fixing component 13. In practical use, the two pin shaft bodies 132 and the stopper rod bodies 138 on two sides of the quick fixing assembly 13 are respectively clamped into the pin shaft holes 116 and the stopper rod holes 117 of the two fixing mounting plates, and the pin shaft bodies 132 correspond to the pin shaft holes 116, and the stopper rod bodies 138 correspond to the stopper rod holes 117.
In the present embodiment, the housing assembly 11 is mainly composed of a housing body 111, a visual indication 114, a common armrest base 113, and a lock screw 112. After the locking screw 112 is tightened, the combination body formed by the housing assembly 11 and the mechanical arm pressing seat has higher connection rigidity.
The bolt mounting seat is of a U-shaped structure, a bolt hole 1110 is formed in the middle of the bolt mounting seat, fastening holes 115 are symmetrically formed in two sides of the outer wall of the bolt mounting seat respectively, and the bolt assembly 12 is mounted in a second threaded hole 1112 of the shell body 111 through the bolt hole 1110.
The bolt component 12 comprises a handrail base simplifying piece 121, a bolt rod 122, a set screw 123, a pressure spring 124 and a steel ball 125, one end of the bolt rod 122 is fixedly connected to the handrail base simplifying piece 121, the other end of the bolt rod 122 is provided with an external thread, the other end of the bolt rod 122 is sequentially arranged in a second threaded hole 1112 of the shell body 111 through a bolt hole 1110 and an abdicating channel 34 of the pressing base body 31, two sides of the other end of the bolt rod 122 are respectively provided with a steel ball 125, one side of each steel ball 125 is detachably arranged in a steel groove at one side of the bolt rod 122, the other side of each steel ball 125 is respectively connected with a pressure spring 124, the pressure spring 124 is sleeved on the outer wall of the set screw 123, the set screw 123 is matched with the bolt rod 122 and the set hole 115 for use, when the bolt component 12 needs to be installed in practical use, a worker holds the handrail base simplifying piece 121 to insert the bolt rod 122 into the bolt hole 1110 of the bolt mounting base first, then, the abdicating channel 34 of the pressing seat body 31 is screwed into the second threaded hole 1112, when the plug pin assembly 12 needs to be pulled out, the worker holds the handrail base simplifying part 121 to screw the plug pin rod 122 out of the second threaded hole 1112 and pulls out the plug pin rod 122 to the outside of the shell body 111 until the plug pin rod is pulled out to the plug pin hole 1110 of the plug pin mounting seat, then the end of the plug pin rod 122 with the external thread is fixed in the plug pin hole 1110, when the plug pin rod 122 is pulled out to the plug pin hole 1110 of the plug pin mounting seat, the fastening screw 123, the pressure spring 124 and the steel ball 125 which are installed together on the two sides are installed in the fastening hole 115, and the reason that the plug pin rod 122 needs to be fixed to the plug pin hole 1110 when being pulled out is that in a space environment, and the operation of a spaceman is inconvenient, so that the number of independent parts needs to be reduced as much as possible. In addition, it should be noted that the spring component at the bottom of the pressing seat body 31 does not affect the use of the latch rod 122 for the abdicating channel 34, and in this embodiment, the latch assembly 12 mainly comprises the latch rod 122, the armrest base simplifying part 121, the set screw 123, the pressure spring 124 and the steel ball 125. The latch assembly 12 is secured to the housing assembly 11 and after insertion and tightening, the astronaut may complete the locking of the latch assembly 12 using the armrest base simplification 121.
The quick fixing component 13 comprises a fixing rod 131, a pin shaft body 132, a first spacer 133, a parallel double torsion spring 134, a second spacer 135, a first gasket 136, a first shaft elastic retainer ring 137, a blocking rod body 138, a second gasket 139 and a second shaft elastic retainer ring 1310, wherein the middle part of the fixing rod 131 is provided with a mounting hole, the middle part of the pin shaft body 132 is movably sleeved in the mounting hole, the two ends of the middle part of the pin shaft body 132, far away from the mounting hole, are respectively sleeved with the first spacer 133 and the second spacer 135, one end of the pin shaft body 132, close to the second spacer 135, is also respectively provided with the first gasket 136 and the first shaft elastic retainer ring 137, the outer wall of the first spacer 133 and the outer wall of the second spacer 135 are respectively sleeved with the two sides of the parallel double torsion spring 134, two pins of the parallel double torsion spring 134 are respectively fixedly connected with the blocking rod body 138, the outer wall of each blocking rod body 138 is respectively sleeved with the second gasket 139 and the second shaft elastic retainer ring 1310, the pin shaft body 132 is matched with the pin shaft hole 116 for use, the stop lever body 138 is matched with the stop lever hole 117 for use, in practical use, one end of the fixing rod 131 is a plane section, the other end of the fixing rod is an arc section, the arc section is a locking surface on the fixing rod 131, the fixing rod 131 hooks the square hole 32 of the space station mechanical arm pressing seat 3 through the locking surface, the pin shaft body 132 is inserted into the two pin shaft holes 116 in the shell body 111, axial fixation is realized through the first gasket 136 and the first shaft elastic retainer ring 137, each stop lever body 138 is respectively inserted into one stop lever hole 117, and axial fixation is realized through the second gasket 139 and the second shaft elastic retainer ring 1310.
The space station mechanical arm pressing seat conversion device is divided into two parts, is installed in a split and step-by-step mode, and has a detachable function. The main protection points are as follows:
1. the fixing unit and the extension connecting unit are provided with anti-floating holes, fillets, a universal handrail base and a universal handrail base simplifying piece, the requirement of on-orbit operation of astronauts is fully considered, and the installation and fastening can be finished by one-time cabin exit;
2. the volume is small, the structure is simple, the requirement on space is low, and the operation in a narrow space is convenient;
3. the expansion connecting unit can modify the length according to the requirement and is suitable for all linkage type pressing seats with different heights on the mechanical arm of the space station;
4. parts related to the sixth specific embodiment all adopt space solid lubrication, use space environment and avoid cold welding;
5. the device has the advantages that the design of the quick fixing assembly is adopted, the device is automatically locked when being installed in place, a astronaut can operate the device with one hand, and the quick fixing device enables the device to have the repeated dismounting function and can be adjusted in an orbit.
Example 1
The following description of the embodiments is made with reference to fig. 1 to 6.
The first embodiment is as follows: the fixing unit 1 is mainly composed of a housing assembly 11, a latch assembly 12 and a quick fixing assembly 13. The latch assembly 12 is inserted into a latch hole 1110 in the housing body 111 and the initial position is fixed by a set screw 123, a compression spring 124 and a steel ball 125. The pin shaft body 132 of the quick-fixing assembly 13 is inserted into the pin shaft hole 116 in the housing body 111, and is axially fixed by a first spacer 136 and a first circlip 137 for the shaft. The extension connection unit 2 is directly connected to the extension screw 119 of the housing body 111 of the fixing unit 1 through the extension female screw 25. The composition of the space station mechanical arm pressing seat conversion device is shown in the attached figure 1.
Embodiment two: the housing assembly 11 is mainly composed of a housing body 111, a visual indication 114, a common armrest base 113, and a lock screw 112. The visual indication 114 and the armrest base 113 are connected to the housing body 111 by screws, and the locking screw 112 is installed in the first threaded hole 1111 of the housing body 111. The housing body 111 has a housing float-preventing hole 118, and when the astronaut leaves the cabin and carries the fixing unit 1, the float-preventing rope needs to be hung in the housing float-preventing hole 118, and the composition of the housing assembly 11 is as shown in fig. 2 and fig. 3.
The third embodiment is as follows: the latch assembly 12 is mainly composed of a latch rod 122, a simplified armrest base 121, a set screw 123, a pressure spring 124 and a steel ball 125. The 1 set screw 123, the 1 compression spring 124 and the 1 steel ball 125 are 1 group, and there are two groups in total, and the two groups are symmetrically arranged in the set hole 115 in the shell body 111. During installation, the steel ball 125 is placed at the bottom of the fastening hole 115, the pressure spring 124 presses the steel ball 125, and the fastening screw 123 presses the pressure spring 124. In the initial state, the steel ball 125 corresponds to the ball slot on the latch rod 122, completing the axial position fixing of the latch rod 122. The handrail base simplifying element 121 and the latch rod 122 are connected together through screws, and the astronaut can use the universal handrail to operate the handrail base simplifying element 121 to complete the actions of inserting, pulling out, screwing and unscrewing the latch assembly 12. The components of the bolt assembly 12 are shown in fig. 4, and the actions of inserting, pulling out, screwing, unscrewing and the like of the bolt assembly 12 are shown in fig. 15-17.
The fourth embodiment: the quick fixing assembly 13 mainly comprises a pin shaft body 132, a fixing rod 131, a first spacer 133, a second spacer 135, a parallel double torsion spring 134, a first gasket 136, a first elastic collar 137, a blocking rod body 138, a second gasket 139 and a second elastic collar 1310. The pin shaft body 132 of the quick-fixing assembly 13 is inserted into the pin shaft hole 116 in the housing body 111, and is axially fixed by a first spacer 136 and a first circlip 137 for the shaft. The first spacer 133, the fixing rod 131 and the second spacer 135 are sequentially mounted on the pin shaft body 132. The parallel double torsion springs 134 are divided into left and right sides, and are formed by two torsion springs, one end of each torsion spring is fixed on the fixing rod 131, the other end of each torsion spring is fixed on the stopper rod body 138, the stopper rod body 138 is installed in the stopper rod hole 117 in the housing body 111, and the axial fixation is realized through a second gasket 139 and a second shaft circlip 1310. Initially, the parallel double torsion springs 134 have a certain pretightening force, which can drive the fixing rod 131 to move, so as to complete the locking action, and after the locking is in place, the locking surface on the fixing rod 131 hooks the square hole 32 of the pressing seat 3 of the space station manipulator, so as to complete the initial fixing of the fixing unit 1 of the initial space manipulator pressing seat conversion device and the pressing seat 3 of the space station manipulator. The space station mechanical arm pressing base 3 is the prior art, and the quick fixing assembly 13 is shown in the attached drawings 5 and 6.
The fifth embodiment: the expansion connecting unit 2 is an expansion part and mainly comprises an expansion guide cone 21, an expansion thread column 22, an outer hexagonal cone 23, an expansion anti-floating hole 24 at 4, an expansion internal thread 25 and the like. The expansion joint unit 2 is shown in fig. 7.
Embodiment six: the bolt rod 122, the handrail base simplifying piece 121 and the steel ball 125 in the bolt component 12, the extension guide cone 21 in the extension connecting unit 2, the pin shaft body 132, the first spacer bush 133, the second spacer bush 135, the stop rod body 138 and the locking surfaces on the fixing rod 131 in the quick fixing component 13 are all lubricated by space solids, so that the space environment is used, and cold welding is avoided.
The using method comprises the following steps:
the installation process of the mechanical arm pressing seat conversion device of the space station is described with reference to fig. 10 to 14.
The pressing seat body 31 of the space station mechanical arm pressing seat 3 is fixed on the cabin, and the fixing unit 1 and the expansion connecting unit 2 are separated to be taken out of the cabin. The astronaut firstly installs the fixing unit 1 in the initial installation state (the fixing unit 1 in the initial installation state is shown in fig. 10) on the pressing seat 3 of the mechanical arm of the space station, as shown in fig. 11, after the fixing unit is installed in place, as shown in fig. 12, the astronaut inserts the plug pin assembly 12 into the housing assembly 11, operates the handrail base simplifying part 121 with the universal handrail and screws up the handrail base simplifying part, and the astronaut screws up the locking screw 112 with a tool to complete the fixing of the fixing unit 1 and the pressing seat 3 of the mechanical arm of the space station (specifically, the locking screw 112 is installed in the circular hole 33 of the pressing seat body 31 through the housing body 111, and the inner wall of the circular hole 33 is provided with an internal thread structure), as shown in fig. 13. Finally, the astronaut mounts the extension connection unit 2 to the stationary unit 1, as shown in fig. 14.
During disassembly, the bolt assembly 12 is sequentially unscrewed and pulled out to the initial position (i.e. the position of the bolt assembly 12 mounted in the bolt hole 1110), the locking screw 112 is loosened, then the back of the fixing rod in the quick fixing assembly 13 is pressed, so that the locking surface on the fixing rod 131 is separated from the square hole 32 of the space station mechanical arm pressing seat 3, and the separation of the fixing unit 1 and the space station mechanical arm pressing seat 3 can be completed along the opposite direction of assembly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a space station arm compresses tightly seat conversion equipment which characterized in that: including fixed unit (1) and extension linkage unit (2), fixed unit (1) is including shell subassembly (11), bolt subassembly (12) and quick fixed subassembly (13), shell subassembly (11) top is installed to extension linkage unit (2), and the bottom is installed to space station arm and is compressed tightly seat (3), and shell subassembly (11) front side is installed to bolt subassembly (12), and the left side is installed to quick fixed subassembly (13), and quick fixed subassembly (13) and space station arm compress tightly seat (3) looks joint.
2. The space station mechanical arm pressing seat conversion device is characterized in that: the shell assembly (11) comprises a shell body (111), a locking screw (112), a universal armrest base (113), a visual mark (114) and an extension threaded part (119), wherein the shell body (111) is of a cuboid frame structure, the upper portion of the shell body (111) is provided with the extension threaded part (119) of an integrally formed structure, the extension threaded part (119) is of a hollow cylindrical structure, the outer wall of the extension threaded part (119) is in threaded connection with an extension connecting unit (2), a first threaded hole (1111) is formed in the extension threaded part (119), the locking screw (112) is arranged in the first threaded hole (1111), the bottom of the locking screw (112) penetrates through the shell body (111) to be installed on a space station mechanical arm pressing seat (3), the universal armrest base (113) is installed on the right side of the shell body (111), the visual mark (114) is installed above the universal armrest base (113), the front side of the shell body (111) is provided with an integrally formed bolt mounting seat, the inner wall of the rear side of the shell body (111) is provided with a second threaded hole (1112), the bolt mounting seat and the second threaded hole (1112) are matched with the bolt component (12) for use, two fixed mounting plates are symmetrically mounted on the left side of the shell body (111), and the two fixed mounting plates are respectively arranged on two sides of the quick fixed component (13).
3. The space station mechanical arm pressing seat conversion device is characterized in that: the bolt mounting seat is of a U-shaped structure, a bolt hole (1110) is formed in the middle of the bolt mounting seat, fastening holes (115) are symmetrically formed in two sides of the outer wall of the bolt mounting seat respectively, and the bolt component (12) is mounted in a second threaded hole (1112) of the shell body (111) through the bolt hole (1110).
4. The space station mechanical arm pressing seat conversion device is characterized in that: the fixed mounting board is the dysmorphism structure, and fixed mounting board surface has been seted up round pin shaft hole (116) and shelves pole hole (117) from last to down respectively, and round pin shaft hole (116) and shelves pole hole (117) all use with quick fixed subassembly (13) cooperation.
5. The spatial station mechanical arm pressing seat conversion device according to claim 3, characterized in that: the bolt component (12) comprises a handrail base simplifying piece (121), a bolt rod (122), a set screw (123), a pressure spring (124) and a steel ball (125), one end of the bolt rod (122) is fixedly connected to the handrail base simplifying piece (121), the other end of the bolt rod (122) is provided with external threads, the other end of the bolt rod (122) is installed in a second threaded hole (1112) of the shell body (111) through a bolt hole (1110) and a abdicating channel (34) of the pressing seat body (31) in sequence, and two sides of the other end of the bolt rod (122) are respectively provided with a steel ball (125), one side of each steel ball (125) is detachably mounted in a steel groove on one side of the bolt rod (122), the other side of each steel ball (125) is respectively connected with a pressure spring (124), the pressure springs (124) are sleeved on the outer wall of a set screw (123), and the set screw (123) is matched with the bolt rod (122) and a set hole (115) for use.
6. The space station mechanical arm pressing seat conversion device is characterized in that: the quick fixing assembly (13) comprises a fixing rod (131), a pin shaft body (132), a first spacer bush (133), a parallel double torsion spring (134), a second spacer bush (135), a first gasket (136), a first shaft elastic retainer ring (137), a blocking rod body (138), a second gasket (139) and a second shaft elastic retainer ring (1310), wherein a mounting hole is formed in the middle of the fixing rod (131), the middle of the pin shaft body (132) is movably sleeved in the mounting hole, the two ends, far away from the mounting hole, of the middle of the pin shaft body (132) are respectively sleeved with the first spacer bush (133) and the second spacer bush (135), one end, close to the second spacer bush (135), of the pin shaft body (132) is further respectively provided with the first gasket (136) and the first shaft elastic retainer ring (137), the outer wall of the first spacer bush (133) and the outer wall of the second spacer bush (135) are respectively sleeved with the two sides of the parallel double torsion spring (134), and two pins of the parallel double torsion spring (134) are respectively and fixedly connected with the blocking rod body (138), a second gasket (139) and a second elastic retainer ring (1310) for the shaft are respectively sleeved on the outer wall of each stop lever body (138), the pin shaft body (132) is matched with the pin shaft hole (116) for use, and the stop lever body (138) is matched with the stop lever hole (117) for use.
7. The space station mechanical arm pressing seat conversion device is characterized in that: extension coupling unit (2) are including extension direction awl (21), extension screw thread post (22), outer hexagonal (23) and extension internal thread (25), extension internal thread (25) are the hollow circular cylinder structure, and extension internal thread (25) outer wall is fixed to cup joint outer hexagonal (23), and extension internal thread (25) top is connected to extension direction awl (21) through extension screw thread post (22), and extension internal thread (25) bottom threaded connection is to extension screw member (119).
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| CN202210407209.4A CN114474161B (en) | 2022-04-19 | 2022-04-19 | Space station arm compresses tightly seat conversion equipment |
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Cited By (1)
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| CN114734407A (en) * | 2022-06-14 | 2022-07-12 | 天津航天机电设备研究所 | Commutator and tool for space station mechanical arm target adapter |
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| CN114734407A (en) * | 2022-06-14 | 2022-07-12 | 天津航天机电设备研究所 | Commutator and tool for space station mechanical arm target adapter |
| CN114734407B (en) * | 2022-06-14 | 2022-09-02 | 天津航天机电设备研究所 | Commutator and tool for space station mechanical arm target adapter |
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| CN114474161B (en) | 2022-07-05 |
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