CN114055409A

CN114055409A - Space on-orbit maintenance electric tool shell used by astronaut wearing clothes

Info

Publication number: CN114055409A
Application number: CN202111312344.2A
Authority: CN
Inventors: 于洋; 傅浩; 王哲; 武婷婷; 郑鹏; 张立伟; 边玉川
Original assignee: Beijing Institute of Spacecraft Environment Engineering
Current assignee: Beijing Institute of Spacecraft Environment Engineering
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-02-18
Anticipated expiration: 2041-11-08
Also published as: CN114055409B

Abstract

The invention discloses a shell of a space on-orbit maintenance electric tool used by a spaceman wearing a garment, which comprises a main shell and a lithium battery box, wherein the main shell comprises a left shell and a right shell, a top cover is arranged on the left shell, a direction knob is arranged on the main shell, a quick-connection special pin is arranged on the right shell, a start-stop switch is arranged on the main shell, the lithium battery box comprises a battery box main shell, a power switch knob is arranged on the battery box main shell, a battery box side cover and a battery box bottom cover are arranged on the battery box main shell, and a bottom cover buckle is arranged on the battery box bottom cover. According to the invention, the concave-convex profile of the knob is convenient for a astronaut to pinch the clothes with hands, the raised blocking piece of the knob obviously protrudes out of the concave-convex profile of the knob, so that the astronaut can stir the direction knob with hands after wearing the clothes, the phenomenon of slipping of the direction knob cannot easily occur in the rotation process, the manual operation of the astronaut is facilitated, and the operation is humanized.

Description

Space on-orbit maintenance electric tool shell used by astronaut wearing clothes

Technical Field

The invention relates to the technical field of space on-orbit maintenance, in particular to a shell of a space on-orbit maintenance electric tool used by a spaceman wearing clothes.

Background

One of the space on-track maintenance work is on-track maintenance and replacement of equipment, mounting screws for fixing the equipment need to be disassembled and assembled on the track, the process uses various special tools, the work is carried out in an extravehicular space environment, and the extravehicular space environment generally comprises high vacuum, cold and heat alternation, atomic oxygen, space radiation and the like, so that strict or even harsh requirements are imposed on the used tools.

The on-orbit maintenance electric tool is a special screw disassembling and assembling tool, and in order to realize normal work of the off-board electric tool in a space off-board environment and meet the operability requirement of an astronaut after wearing an off-board space suit, the astronaut can smoothly screw down or unscrew mounting screws on off-board equipment during on-orbit maintenance after wearing the off-board space suit, and a shell of the space on-orbit maintenance electric tool used by the astronaut during wearing the space off-board space suit needs to be designed for the off-board electric tool.

Disclosure of Invention

The invention aims to: in order to solve the problems, the space on-orbit maintenance electric tool shell used by the astronaut is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a space that astronaut was obeying and is used at rail maintenance electric tool's casing, includes main shell and lithium cell box, main shell includes left shell and right shell, be equipped with the top cap on the left shell, be equipped with the direction knob on the main shell, be equipped with on the shell of the right side and connect special round pin soon, it opens the stop switch to be equipped with on the main shell, the lithium cell box includes the battery case main casing, install the switch knob on the battery case main casing, be equipped with battery case side cap and battery case bottom on the battery case main casing, install the bottom buckle on the battery case bottom, the ring that floats is prevented to the battery case side cap installation.

Preferably, the direction knob includes the unsmooth profile of knob, the unsmooth profile range of knob is not less than 4mm, protruding separation blade of knob between the unsmooth profile of knob, be equipped with the knob mark line on the protruding separation blade of knob, direction knob one side is sunken to have the spacing groove of rotation, the spacing hole of knob installation has been seted up to the direction knob intermediate position.

Preferably, the start-stop switch is provided with a start-stop switch pressing stroke, and the start-stop switch pressing stroke is not less than 10 mm.

Preferably, the battery box main casing is internally provided with a battery installation short guide groove and a battery installation long guide groove, a damping hinge is arranged at the rotating shaft of the battery box bottom cover, the damping hinge adopts a stainless steel disc spring to provide a compression damping force, the rotating shaft part adopts solid lubrication, and the battery box main casing is provided with a bottom cover buckle seat matched with the bottom cover buckle.

Preferably, an air hole is formed near the center of the anti-floating ring, the diameter of the air hole is not smaller than 1mm, the air hole penetrates through the main battery box shell, and the inside and the outside of the main battery box shell are communicated.

Preferably, the equivalent aluminum thickness is converted by radiation-resistant dose values of the electronic devices in the main shell and the lithium battery box, and a high-shielding aluminum alloy is selected, wherein the equivalent aluminum alloy thickness is between 3 and 6 mm.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. this application is convenient for astronaut through the unsmooth profile of knob and is holding between the fingers with the hand after the clothes, and the unsmooth profile of knob is obviously protruded to the protruding separation blade of knob, is convenient for astronaut and is stirring the direction knob with the hand after the clothes for the phenomenon of skidding can not appear easily in the rotation of direction knob, and the astronaut manual operation of being convenient for is comparatively humanized.

2. The aluminum alloy cabinet has the advantages that all parts of the cabinet are required to select raw materials which can tolerate a specific extravehicular space environment, the heat leakage prevention function is certain, the aluminum alloy cabinet can adapt to environments such as high vacuum, cold and heat alternation, atomic oxygen and space radiation outside a rail cabin, the aluminum alloy with large specific heat capacity is selected, bright anodization is carried out on the outer surface of the cabinet, and the emissivity and the absorptivity parameters are between 0.2 and 0.5.

Drawings

Fig. 1 is a schematic diagram illustrating an overall structure of a chassis according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating a main housing structure of a chassis according to an embodiment of the invention;

FIG. 3 is a schematic diagram illustrating a knob switch of a housing according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a lithium battery pack assembly structure of a case according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating an internal accessory structure of a lithium battery case of a casing according to an embodiment of the present invention;

illustration of the drawings:

1. a main housing; 11. a left shell; 12. a right shell; 13. a top cover; 14. a direction knob; 141. concave-convex profile of the knob; 142. the knob protrudes a baffle plate; 143. rotating the limiting groove; 144. the knob is provided with a limiting hole; 145. the knob marks the line; 15. a quick-connect special pin; 16. a start-stop switch; 161. starting and stopping a switch pressing stroke; 2. a lithium battery case; 21. a battery box main case; 211. a battery mounting short guide groove; 212. a long guide groove is arranged on the battery; 213. a bottom cover fastener seat; 214. a damping hinge; 22. a battery case side cover; 23. a battery case bottom cover; 231. the bottom cover is buckled; 24. a power switch knob; 25. an anti-floating ring; 251. and (4) air holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a space that astronaut was obeying and is used at rail maintenance electric tool's casing, including main shell 1 and lithium cell box 2, main shell 1 includes left side shell 11 and right side shell 12, be equipped with top cap 13 on the left side shell 11, be equipped with direction knob 14 on the main shell 1, be equipped with on the right side shell 12 and connect special round pin 15 soon, be equipped with on main shell 1 and open stop switch 16, open stop switch 16 department is equipped with and stops switch pressfitting stroke 161, open stop switch pressfitting stroke 161 and be not less than 10mm, lithium cell box 2 includes battery case main casing 21, install switch knob 24 on the battery case main casing 21, be equipped with battery case side cap 22 and battery case bottom cap 23 on the battery case main casing 21, install bottom buckle 231 on the battery case bottom cap 23, the float ring 25 is prevented to battery case side cap 22 installation.

The direction knob 14 comprises a knob concave-convex profile 141, the amplitude of the knob concave-convex profile 141 is not less than 4mm, the astronaut can conveniently sense the holding state of the knob when holding the knob, a knob convex baffle 142 protrudes between the knob concave-convex profiles 141, a knob marking line 145 is arranged on the knob convex baffle 142, a rotary limiting groove 143 is sunken in one side of the direction knob 14, and a knob installation limiting hole 144 is formed in the middle of the direction knob 14.

The battery box main shell 21 is internally provided with a battery installation short guide groove 211 and a battery installation long guide groove 212, a damping hinge 214 is arranged at the rotating shaft of the battery box bottom cover 23, the damping hinge 214 adopts a stainless steel disc spring to provide a compression damping force, the rotating shaft part adopts solid lubrication, and the battery box main shell 21 is provided with a bottom cover clamping seat 213 matched with the bottom cover clamping buckle 231.

An air hole 251 is formed near the center of the anti-floating ring 25, the diameter of the air hole 251 is not less than 1mm, the air hole 251 penetrates through the main shell 21 of the battery box, so that the inside and the outside of the main shell 21 of the battery box are communicated, and the internal air can be smoothly discharged in a vacuum environment.

The radiation-resistant dose values of the electronic devices inside the main shell 1 and the lithium battery box 2 are converted into equivalent aluminum thickness, high-shielding aluminum alloy is selected, and the equivalent aluminum alloy thickness is between 3 mm and 6 mm.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shell of a space on-orbit maintenance electric tool used by a spaceman wearing clothes comprises a main shell (1) and a lithium battery box (2), characterized in that the main shell (1) comprises a left shell (11) and a right shell (12), a top cover (13) is arranged on the left shell (11), a direction knob (14) is arranged on the main shell (1), a quick-connection special pin (15) is arranged on the right shell (12), a start-stop switch (16) is arranged on the main shell (1), the lithium battery box (2) comprises a main battery box shell (21), a power switch knob (24) is arranged on the main battery box shell (21), the main battery box shell (21) is provided with a battery box side cover (22) and a battery box bottom cover (23), a bottom cover buckle (231) is installed on the battery box bottom cover (23), and an anti-floating ring (25) is installed on the battery box side cover (22).

2. The casing of the space on-orbit maintenance electric tool worn by astronauts according to claim 1, wherein the direction knob (14) comprises a knob concave-convex profile (141), the amplitude of the knob concave-convex profile (141) is not less than 4mm, knob convex blocking pieces (142) protrude between the knob concave-convex profiles (141), knob marking lines (145) are arranged on the knob convex blocking pieces (142), a rotation limiting groove (143) is recessed on one side of the direction knob (14), and a knob installation limiting hole (144) is formed in the middle of the direction knob (14).

3. The machine shell of the space on-orbit maintenance electric tool for the spaceman wearing the clothes as claimed in claim 1, wherein a start-stop switch pressing stroke (161) is arranged at the start-stop switch (16), and the start-stop switch pressing stroke (161) is not less than 10 mm.

4. The machine shell of the space on-orbit maintenance electric tool for the spaceman wearing the clothes as claimed in claim 1, wherein a battery installation short guide groove (211) and a battery installation long guide groove (212) are formed in the battery box main shell (21), a damping hinge (214) is arranged at the rotating shaft of the battery box bottom cover (23), the damping hinge (214) adopts a stainless steel disc spring to provide a compression damping force, the rotating shaft component adopts solid lubrication, and a bottom cover buckling seat (213) matched with the bottom cover buckle (231) is arranged on the battery box main shell (21).

5. The machine shell of the space on-orbit maintenance electric tool worn by astronauts according to claim 1, wherein an air hole (251) is formed near the center of the anti-floating ring (25), the diameter (251) of the air hole is not less than 1mm, the air hole (251) penetrates through the battery box main shell (21), and the inside and the outside of the battery box main shell (21) are communicated.

6. The machine shell of the space on-orbit maintenance electric tool worn by astronauts according to claim 1, wherein the radiation dose tolerance value of the electronic devices in the main shell (1) and the lithium battery box (2) is converted into equivalent aluminum thickness, high shielding aluminum alloy is selected, and the equivalent aluminum thickness is between 3 mm and 6 mm.