CN113464543A - Radial unfolding mechanism - Google Patents

Radial unfolding mechanism Download PDF

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Publication number
CN113464543A
CN113464543A CN202110725269.6A CN202110725269A CN113464543A CN 113464543 A CN113464543 A CN 113464543A CN 202110725269 A CN202110725269 A CN 202110725269A CN 113464543 A CN113464543 A CN 113464543A
Authority
CN
China
Prior art keywords
ring body
support
gear
rotating ring
deployment mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110725269.6A
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Chinese (zh)
Inventor
武玮
谭应鹏
刘佳薇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northwest University
Original Assignee
Northwest University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northwest University filed Critical Northwest University
Priority to CN202110725269.6A priority Critical patent/CN113464543A/en
Publication of CN113464543A publication Critical patent/CN113464543A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The invention discloses a radial unfolding mechanism which comprises a plurality of ring bodies arranged in parallel and a plurality of unfolding components arranged on the outer sides of the ring bodies and capable of being unfolded radially, wherein the ring bodies comprise fixed ring bodies and at least one rotating ring body, a driving component used for driving the rotating ring bodies to rotate is arranged in the fixed ring bodies, a transmission component connected with the driving component is arranged in the rotating ring bodies, the unfolding components comprise a first support and a second support which are respectively connected to different ring bodies, and the bottom spans of the first support and the second support are changed through the rotation of the rotating ring bodies. The radial expansion device is simple in structure, reasonable in design, convenient to implement, capable of being effectively applied to radial expansion, capable of achieving a large radial expansion distance in a small axial space, good in rigidity after expansion, good in use effect and convenient to popularize and use.

Description

Radial unfolding mechanism
Technical Field
The invention belongs to the technical field of mechanical design, and particularly relates to a radial unfolding mechanism.
Background
With the development of society, various machines are continuously introduced into people's lives, various mechanical structures are invented by people in order to meet various working conditions, and various unfolding mechanisms are designed in order to reduce the size of the mechanical structure or increase the motion form of the mechanical structure under non-working conditions.
Compared with a rigid structure, the folding structure with the same size when unfolded can reduce the whole size by several times after being folded, so that the folding structure needs less space when being stored and transported, has higher freedom degree when moving, and has more various movement forms when in work.
In the existing unfolding mechanism, the process of folding to unfolding is usually realized by axial movement, such as an umbrella or a hydraulic rod, and a large axial space is occupied. Also radial expansion is usually achieved by inflation, but it is clear that axial movement or inflatable radial expansion takes up relatively much space and is not rigid enough after expansion.
Disclosure of Invention
The invention aims to solve the technical problem of providing a radial unfolding mechanism which is simple in structure, reasonable in design, convenient to realize, capable of being effectively applied to radial unfolding, capable of realizing a larger radial unfolding distance in a smaller axial space, good in rigidity after unfolding, good in using effect and convenient to popularize and use.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a radial expansion mechanism, is including a plurality of rings bodies that set up side by side and a plurality of expansion parts that can radially expand that set up in the ring body outside, and is a plurality of the ring body is including fixed ring body and at least one rotation ring body, fixed ring is internal to be provided with and to be used for the drive to rotate ring body pivoted driver part, rotate the intra-annular be provided with the drive disk assembly that driver part is connected, expansion part is including connecting first support and the second support on different rings bodies respectively, the bottom span of first support and second support changes through the rotation that rotates the ring body.
When the number of the ring bodies arranged in parallel is two, the ring bodies comprise a fixed ring body and a rotating ring body, the first support is movably connected to the outer side of the fixed ring body, and the second support is movably connected to the outer side of the rotating ring body.
The utility model provides an foretell radial expansion mechanism, the outside interval of fixed ring body is provided with a plurality of first sand grips, first support articulates the one end at first sand grip, the outside interval of rotating the ring body is provided with a plurality of second sand grips, the second support articulates the one end at the second sand grip.
The radial unfolding mechanism is characterized in that the second convex strip is provided with an annular groove, and one end, away from the first support, of the first convex strip is provided with a limit bolt extending into the annular groove.
In the radial deployment mechanism, the driving member includes a motor.
The transmission component comprises gear teeth arranged on the inner surface of the rotary ring body, a main gear arranged on the central axis of the rotary ring body, and a transmission gear arranged between the gear teeth and the main gear, wherein the gear teeth and the main gear are both meshed with the transmission gear, and the main gear is connected with an output shaft of a motor.
When the number of the ring bodies arranged in parallel is three, the ring bodies comprise a fixed ring body and two rotating ring bodies, the two rotating ring bodies comprise a first rotating ring body and a second rotating ring body, the first support is movably connected to the outer side of the first rotating ring body, and the second support is movably connected to the outer side of the second rotating ring body.
The transmission part comprises a first planetary gear train, a second planetary gear train and a third planetary gear train which are arranged in parallel, the first planetary gear train comprises a first sun gear, a first planetary gear and a first gear ring, and the first sun gear is fixed; the second planetary gear train comprises a second sun gear, a second planetary gear, a second gear ring and a first planet carrier, and the second gear ring is fixed; the third planetary gear train includes third sun gear, third planet wheel, third ring gear and second planet carrier, the second planet carrier is fixed, first planet wheel, second planet wheel and third sun gear all are connected with first planet carrier, the third planet wheel is connected with the second planet carrier, the second sun gear is connected with driver part.
In the radial unfolding mechanism, the first support and the second support are both arc-shaped and have opposite radians.
Compared with the prior art, the invention has the following advantages:
1. the invention has simple structure, reasonable design and convenient realization.
2. The invention designs a plurality of ring bodies in parallel, and realizes radial expansion through the relative rotation of the two ring bodies.
3. The first support and the second support are designed to be arc-shaped, so that certain elasticity is achieved while unfolding rigidity is guaranteed.
4. The integral structure of the invention has no axial displacement component, has small sealing difficulty and can be configured into an integral sealing structure.
5. The invention can be effectively applied to radial expansion, realizes larger radial expansion distance by using smaller axial space, and has good rigidity and use effect after expansion, thereby being convenient for popularization and use.
In conclusion, the radial expansion device is simple in structure, reasonable in design and convenient to implement, can be effectively applied to radial expansion, realizes a larger radial expansion distance in a smaller axial space, and is good in rigidity after expansion, good in use effect and convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a rear view of FIG. 1;
FIG. 3 is a schematic structural view of a transmission member in embodiment 1 of the invention;
FIG. 4 is a schematic structural view of example 2 of the present invention;
FIG. 5 is a schematic structural view of a transmission member in embodiment 2 of the invention;
fig. 6 is a rear view of fig. 5.
Description of reference numerals:
1 — a first support; 2-a second support; 3-fixing the ring body;
4-rotating the ring body; 4-1-a first rotating ring body; 4-2-a second rotating ring body;
5-a first convex strip; 6-second convex strip; 7, annular slotting;
8, a limit bolt; 9-gear teeth; 10-a main gear;
11-a transmission gear; 12 — a first sun gear; 13 — a first planet wheel;
14 — a first ring gear; 15 — a second sun gear; 16-a second planet wheel;
17 — a second ring gear; 18 — a third sun gear; 19-a third planet;
20 — a third ring gear; 21 — a first carrier; 22-a motor;
23 — second planet carrier.
Detailed Description
The radial unfolding mechanism comprises a plurality of ring bodies arranged in parallel and a plurality of unfolding components which are arranged on the outer sides of the ring bodies and can be unfolded radially, wherein the ring bodies comprise fixed ring bodies and at least one rotating ring body, a driving component for driving the rotating ring bodies to rotate is arranged in the fixed ring bodies, a transmission component connected with the driving component is arranged in the rotating ring bodies, the unfolding components comprise a first support 1 and a second support 2 which are respectively connected to different ring bodies, and the bottom spans of the first support 1 and the second support 2 are changed through the rotation of the rotating ring bodies.
During specific implementation, the end parts of the first support 1 and the second support 2 are respectively provided with a hinged part for connecting a functional component, a triangular support structure with a variable bottom edge span distance is formed after the functional components are connected, and bottom span adjustment of the first support 1 and the second support 2 is realized through relative rotation of the two ring bodies.
Example 1
In this embodiment, as shown in fig. 1 and fig. 2, the ring body includes a fixed ring body 3 and a rotating ring body 4, the first support 1 is movably connected to the outer side of the fixed ring body 3, and the second support 2 is movably connected to the outer side of the rotating ring body 4.
In this embodiment, a plurality of first convex strips 5 are arranged at intervals on the outer side of the fixed ring body 3, the first support 1 is hinged to one end of the first convex strip 5, a plurality of second convex strips 6 are arranged at intervals on the outer side of the rotating ring body 4, and the second support 2 is hinged to one end of the second convex strip 6.
In a specific embodiment, the first protrusion 5 and the second protrusion 6 are both in the shape of a sector ring.
In this embodiment, the second protruding strip 6 is provided with an annular slot 7, and one end of the first protruding strip 5, which is away from the first bracket 1, is provided with a limit bolt 8 extending into the annular slot 7.
During the concrete implementation, second sand grip 6 rotates along with rotating ring body 4, and cyclic annular fluting 7 takes place relative displacement with stop bolt 8, and when cyclic annular fluting 7 removed to when contacting with stop bolt 8, stop bolt 8 produced spacingly to cyclic annular fluting 7, made rotating ring body 4 stall.
In this embodiment, the driving part includes a motor.
In the present embodiment, as shown in fig. 3, the transmission component includes a gear tooth 9 disposed on the inner surface of the rotating ring body 4, a main gear 10 disposed on the central axis of the rotating ring body 4, and a transmission gear 11 disposed between the gear tooth 9 and the main gear 10, the gear tooth 9 and the main gear 10 are both engaged with the transmission gear 11, and the main gear 10 is connected to the output shaft of the motor.
When the device is specifically implemented, the motor works, the main gear 10 is driven to rotate through the output shaft, the main gear 10 drives the transmission gear 11 to rotate, and then the transmission gear 11 drives the rotating ring body 4 to rotate, so that the relative rotation of the rotating ring body 4 and the fixed ring body 3 is realized.
Example 2
In this embodiment, as shown in fig. 4, the ring body includes a fixed ring body 3 and two rotating ring bodies 4, the two rotating ring bodies 4 include a first rotating ring body 4-1 and a second rotating ring body 4-2, the first bracket 1 is movably connected to the outer side of the first rotating ring body 4-1, and the second bracket 2 is movably connected to the outer side of the second rotating ring body 4-2.
In the present embodiment, as shown in fig. 5 and 6, the transmission component includes a first planetary gear train, a second planetary gear train and a third planetary gear train which are arranged in parallel, the first planetary gear train includes a first sun gear 12, a first planet gear 13 and a first ring gear 14, and the first sun gear 12 is fixed; the second planetary gear train comprises a second sun gear 15, a second planet gear 16, a second ring gear 17 and a first planet carrier 21, and the second ring gear 17 is fixed; the third planetary gear train includes third sun gear 18, third planet wheel 19, third ring gear 20 and second planet carrier 23, second planet carrier 23 is fixed, first planet wheel 13, second planet wheel 16 and third sun gear 18 all are connected with first planet carrier 21, third planet wheel 19 is connected with second planet carrier 23, second sun gear 15 is connected with the driver part.
In specific implementation, the driving part can adopt a motor, the motor works, the second sun gear 15 is driven to rotate through an output shaft, the second ring gear 17 is fixed, the second planet wheel 16 rotates around the second sun gear 15 to further drive the first planet carrier 21 to rotate, and the first planet wheel 13 and the second planet wheel 16 are connected in series on the first planet carrier 21, so that the first planet carrier 21 rotates to drive the first planet wheel 13 to rotate around the fixed first sun gear 12 to further drive the first ring gear 14 to rotate; meanwhile, the first planet carrier 21 rotates to drive the third sun gear 18 to rotate, the third sun gear 18 rotates to drive the third planet gear 19 fixed on the second planet carrier 23 to rotate in the opposite direction, and further the third ring gear 20 is driven to rotate in the opposite direction, so that the relative rotation of the first rotating ring body 4-1 and the second rotating ring body 4-2 is realized.
It should be noted that, compared with embodiment 1, embodiment 2 adds one ring body, and increases the axial distance of the whole deployment mechanism, but the first rotating ring body 4-1 and the second rotating ring body 4-2 rotate simultaneously and relatively, and increases the radial deployment speed of the deployment mechanism.
In this embodiment, the first bracket 1 and the second bracket 2 are both arc-shaped and have opposite radians.
When the foldable support is specifically implemented, the first support 1 and the second support 2 which are designed in an arc shape improve the elasticity while ensuring the unfolding rigidity.
When the multifunctional support is used, the hinging parts of the first support 1 and the second support 2 are connected with the functional parts, so that a plurality of functional parts can be connected, after the functional parts are connected, the first support 1 and the second support 2 form a triangular support structure with variable bottom span, and the radial distance is adjusted through the change of the distance of the bottom span. Specifically, when radially expanding, the drive unit effect drives the drive unit effect, makes two rings body emergence relative rotation, and then makes the bottom of first support 1 and second support 2 take place relative displacement, reduces span distance, increases functional unit's radial distance, realizes radially expanding.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims (9)

1. A radial deployment mechanism, characterized by: including a plurality of rings bodies that set up side by side and a plurality of expansion parts that can radially expand of setting in the ring body outside, it is a plurality of the ring body is including fixed ring body and at least one rotation ring body, fixed ring is internal to be provided with and is used for driving the pivoted driver part of rotation ring body, rotate the intra-annular be provided with the drive disk assembly that driver part is connected, expansion part is including connecting first support (1) and second support (2) on different rings body respectively, the bottom span of first support (1) and second support (2) changes through the rotation of rotating the ring body.
2. A radial deployment mechanism according to claim 1, wherein: the ring body comprises a fixed ring body (3) and a rotating ring body (4), the first support (1) is movably connected to the outer side of the fixed ring body (3), and the second support (2) is movably connected to the outer side of the rotating ring body (4).
3. A radial deployment mechanism according to claim 2, wherein: the outside interval of fixed ring body (3) is provided with a plurality of first sand grips (5), first support (1) articulates the one end in first sand grip (5), the outside interval of rotating ring body (4) is provided with a plurality of second sand grips (6), second support (2) articulates the one end in second sand grip (6).
4. A radial deployment mechanism according to claim 3, wherein: be provided with cyclic annular fluting (7) on second sand grip (6), the one end that first support (1) was kept away from in first sand grip (5) is provided with spacing bolt (8) that stretch into in cyclic annular fluting (7).
5. A radial deployment mechanism according to claim 2, wherein: the drive means comprises a motor (22).
6. A radial deployment mechanism according to claim 5, wherein: the transmission component comprises gear teeth (9) arranged on the inner surface of the rotating ring body (4), a main gear (10) arranged on the middle shaft of the rotating ring body (4), and a transmission gear (11) arranged between the gear teeth (9) and the main gear (10), the gear teeth (9) and the main gear (10) are both meshed with the transmission gear (11), and the main gear (10) is connected with an output shaft of a motor (22).
7. A radial deployment mechanism according to claim 1, wherein: the ring bodies comprise a fixed ring body (3) and two rotating ring bodies (4), the two rotating ring bodies (4) comprise a first rotating ring body (4-1) and a second rotating ring body (4-2), the first support (1) is movably connected to the outer side of the first rotating ring body (4-1), and the second support (2) is movably connected to the outer side of the second rotating ring body (4-2).
8. A radial deployment mechanism according to claim 7, wherein: the transmission component comprises a first planetary gear train, a second planetary gear train and a third planetary gear train which are arranged in parallel, the first planetary gear train comprises a first sun gear (12), a first planetary gear (13) and a first gear ring (14), and the first sun gear (12) is fixed; the second planetary gear train comprises a second sun gear (15), a second planet gear (16), a second gear ring (17) and a first planet carrier (21), and the second gear ring (17) is fixed; the third planetary gear train includes third sun gear (18), third planet wheel (19), third ring gear (20) and second planet carrier (23), second planet carrier (23) are fixed, first planet wheel (13), second planet wheel (16) and third sun gear (18) all are connected with first planet carrier (21), third planet wheel (19) are connected with second planet carrier (23), second sun gear (15) are connected with the driver part.
9. A radial deployment mechanism according to claim 1, wherein: the first support (1) and the second support (2) are both arc-shaped and have opposite radians.
CN202110725269.6A 2021-06-29 2021-06-29 Radial unfolding mechanism Pending CN113464543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110725269.6A CN113464543A (en) 2021-06-29 2021-06-29 Radial unfolding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110725269.6A CN113464543A (en) 2021-06-29 2021-06-29 Radial unfolding mechanism

Publications (1)

Publication Number Publication Date
CN113464543A true CN113464543A (en) 2021-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110725269.6A Pending CN113464543A (en) 2021-06-29 2021-06-29 Radial unfolding mechanism

Country Status (1)

Country Link
CN (1) CN113464543A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11270775A (en) * 1998-03-18 1999-10-05 Toshiba Corp In-pipe travel system
CN105003790A (en) * 2015-07-08 2015-10-28 北京工业大学 Multifunctional compound driving pipeline robot
CN106996498A (en) * 2017-05-13 2017-08-01 承德石油高等专科学校 One kind wheel carries out tandem pipe robot
CN107856018A (en) * 2017-10-31 2018-03-30 武汉大学 A kind of variation rigidity flexible actuator
WO2021052869A1 (en) * 2019-09-16 2021-03-25 Autonomous Clean Water Appliance (Acwa) Robotics Pipe exploration robot comprising a bearing module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11270775A (en) * 1998-03-18 1999-10-05 Toshiba Corp In-pipe travel system
CN105003790A (en) * 2015-07-08 2015-10-28 北京工业大学 Multifunctional compound driving pipeline robot
CN106996498A (en) * 2017-05-13 2017-08-01 承德石油高等专科学校 One kind wheel carries out tandem pipe robot
CN107856018A (en) * 2017-10-31 2018-03-30 武汉大学 A kind of variation rigidity flexible actuator
WO2021052869A1 (en) * 2019-09-16 2021-03-25 Autonomous Clean Water Appliance (Acwa) Robotics Pipe exploration robot comprising a bearing module

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Application publication date: 20211001