CN110228609A - A kind of telescopic locking mechanism of lead screw driving - Google Patents
A kind of telescopic locking mechanism of lead screw driving Download PDFInfo
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- CN110228609A CN110228609A CN201910513547.4A CN201910513547A CN110228609A CN 110228609 A CN110228609 A CN 110228609A CN 201910513547 A CN201910513547 A CN 201910513547A CN 110228609 A CN110228609 A CN 110228609A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/641—Interstage or payload connectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G4/00—Tools specially adapted for use in space
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Abstract
The invention discloses a kind of telescopic locking mechanisms of lead screw driving, including guide rail and screw mechanism, described screw mechanism one end is equipped with fixing seat, screw mechanism is connect with fixing seat by fixing sleeve, the power device of driving screw mechanism movement is installed on the fixing sleeve, the screw mechanism other end is mounted in guide rail, and screw mechanism opposite rail realizes that stretching motion, the screw mechanism are located at guide rail one end and are equipped with locking device；The present invention is that the cone bar driven by lead screw principle captures retaining mechanism, completes flexible and swelling capture using a motor driven and acts, simplified control system, takes full advantage of space, and mechanism integral rigidity is driven, transmission is accurate.
Description
Technical field
The invention belongs to the in-orbit services of space satellite and maintenance technology field, are related to a kind of telescopic locking of lead screw driving
Mechanism.
Background technique
Geostationary orbit, also referred to as GEO are the important Earth's orbit resources of the mankind, and in-orbit resource is limited by rail position, extremely
It is in short supply.It is uncontrollable or discarded comprising 40% or more in the population of satellite of GEO band however as the rapid development of space mission
Satellite and its remains, these space objects period of passing away naturally is long, constitutes threat to the safety of the GEO satellite of normal operation,
Also lead to GEO rail position resource serious waste.Separately statistics shows in the in-orbit GEO satellite to break down, 50% or more failure
Lost from a certain function of service system, and occupy 70% or more satellite cost payload and platform main functionality it is complete
It is good.Therefore, it needs to develop a kind of servicing aircraft for carrying general capture mechanism, auxiliary is still trapped in discarded in GEO band
Satellite completes the operation that leaves the right or normal track, and is pushed into GEO rubbish track；Or fault satellites are implemented to rescue, quickly make fault satellites load
Task ability is continued.
For in-orbit inert satellite, in terms of attitude characteristic, due to energy dissipations such as celestial body solar wing and propellant sloshings
Effect, in the case where angular momentum is certain, according to that can converge concept, satellite will finally be rotated around the maximum principal axis of inertia, and in the sun
Under the effect of the moment of face such as optical pressure, there is more small size nutating；In terms of interface features, at present it is in-orbit and the GEO satellite ground simultaneously
Not for in-orbit service and Maintenance Design is received, do not have the mating interface of cooperation.Therefore, it is taken in conjunction with the rescue to such satellite
It is engaged in and leaves the right or normal track operational requirements, need to design the small-sized rigid arresting agency of big tolerance for being suitable for high rail satellite, increase to in-orbit
The versatility arrested, reliability and the safety of satellite.Pass through the common apparatus analysis to high rail satellite, satellite north north direction
The solar battery array for installing expansion, is equipped with star interface butt joint ring and apogee engine in satellite-rocket docking face, in satellite
Antenna is installed to ground.Wherein, apogee engine does not use after satellier injection work, is suitable for being selected as grabbing for satellite
Catch docking object.
Apogee engine is arrested based on cone lever type mechanisms, is particularly suitable for discarding around the high rail rotated to axis over the ground and defend
Star can make full use of the weak stroke speed between two aircraft, carry out isotropic guiding by engine inner conical surface and arrest,
Reduce the relative pose control precision of two aircraft.
Currently, external typical research approach include U.S. phoenix in the works mechanical arm+replaceable end effector scheme,
German DEOS and Europe SMART-OLEV bores rod-type arresting agency scheme.Cone rod-type arresting agency therein is defended mainly for GEO
The general apogee engine of star is arrested, which is composed in series by screw mechanism and cone linkage, and screw mechanism is realized
The axial stretching movement for boring linkage, bores linkage by coronal extension retaining mechanism, tip sensors in place and combined laser
Sensor composition, coronal extension retaining mechanism therein are also to be captured for engine trunnion.Regrettably, at the mechanism
In the outside of arresting agency, do not have Telescopic, during to satellite capture, it is possible to first hit the part body without
It is the external orientation structure for boring linkage, be easy to cause the damage arrested failure or even cause coronal extension retaining mechanism.
Chinese invention is the flexible expansion mechanism of cone bar driven based on reversible helicla flute, application publication number
CN109573114A, data of publication of application: 2019.04.05, a kind of flexible swelling machine of cone bar based on the driving of reversible helicla flute
Structure, including guide cylinder (1), flexible expansion mechanism (001), support base (20)；Flexible expansion mechanism (001) front end is mounted on guiding
In cylinder (1), rear end is mounted in support base (20), and front end is realized under the driving effect of power along guide cylinder (1) inner wall flexible
Movement.The present invention is using two-way spiral groove driving design, and driving is simple, and movement is accurate and reliable；Bar is bored to stretch and swelling movement nothing
Need to drive it is reversed, can high-speed cruising, to target fast Acquisition；Compact-sized, positioning accuracy is high, suitable for end executive device
This mechanism is applied in high rail Satellite General break catching apparatus, it can be achieved that the more of target satellite engine trunnion by capture mechanism
Secondary reliably to arrest, after also can be used as Space Docking Mechanism fine alignment device fine alignment retaining mechanism.
The above invention is using the flexible expansion mechanism of cone bar that reversible helicla flute drives, since reversible machining spiral groove is difficult
Spend it is larger, in order to realize above-described locking purpose can using lead screw principle realize satellite arrest locking.
Summary of the invention
Object of the present invention is to be adopted the technical scheme that solve above-mentioned purpose:
A kind of telescopic locking mechanism of lead screw driving, including guide rail and screw mechanism, described screw mechanism one end are equipped with fixation
Seat, screw mechanism are connect with fixing seat by fixing sleeve, and the power dress of driving screw mechanism movement is equipped on the fixing sleeve
It sets, the screw mechanism other end is mounted in guide rail, and screw mechanism opposite rail realizes stretching motion, and the screw mechanism, which is located at, leads
Rail one end is equipped with locking device.
Preferably, the screw mechanism includes interior bar and is coaxially set in the two-level sleeve of interior bar outer wall, the second level set
Drum outer wall coaxial sleeve is equipped with level-one sleeve, and level-one sleeve outer wall, which is arranged, is equipped with sliding rail, and the interior bar is removable close to guide rail one end
It unloads and is connected with cone bar.
The level-one sleeve lining be equipped with level-one internal screw thread, level-one sleeve close to guide rail one end radially Circle-Array show it is more
A locating slot is equipped with level-one stop device in level-one locating slot, and the level-one stop device includes level-one stop sleeve and installation
Level-one detent balls in level-one stop sleeve are equipped with level-one pressure spring, level-one stop sleeve between level-one stop sleeve and level-one detent balls
The installation of sliding rail inner wall is contacted, level-one detent balls contact the installation of two-level sleeve outer wall, and the level-one sleeve outer wall is equipped with driving gear,
The level-one bearing is mounted between level-one sleeve and fixing seat.
The two-level sleeve outer wall is equipped with the second level external screw thread with level-one screw-internal thread fit, the other end close to fixing seat one end
Equipped with support convex, the second level cooperated with level-one detent balls is equipped on two-level sleeve outer wall between second level external screw thread and support convex
Locking groove, second level locking groove are arranged against second level external screw thread, and two-level sleeve inner wall is equipped with second level internal screw thread, the second level internal screw thread
Radially Circle-Array shows two-stage positioning slot for one end, and it is straight less than second level internal screw thread to install two-level sleeve internal diameter at two-stage positioning slot
Diameter, second level stop device is equipped in the two-stage positioning slot, and the second level stop device includes second level stop sleeve and is mounted on
Second level detent balls in second level stop sleeve are equipped with second level pressure spring, second level stop socket between second level stop sleeve and second level detent balls
The installation of level-one sleeve lining is touched, second level detent balls contact the installation of interior bar outer wall, and the second level internal screw thread other end is equipped in limit
Screw thread, the limit internal screw thread are arranged close to fixing seat one end, limit and are combined with interior bar gag lever post, interior bar gag lever post on internal screw thread
It is interior to be equipped with square hole.
The interior bar is equipped with the interior bar external screw thread with second level screw-internal thread fit, and the outer spiral shell one end of interior bar is equipped with and second level stop
The interior bar of multiple interior bar locking grooves of ball cooperation, the outer spiral shell other end of interior bar is set as rectangular, and interior bar passes through the side in interior bar gag lever post
Shape hole extends to outside fixing seat；The level-one stop bulb diameter is greater than second level stop bulb diameter.
Preferably, the sliding rail is cylindrical shape, and sliding rail inner wall is equipped with annulus positioning protrusion, and annulus positioning protrusion and support are convex
Portion's contact setting, the axially disposed guide protrusion of sliding rail outer cylinder, guide protrusion in sliding rail outer cylinder circumference array,
Preferably, the locking device includes lock sheet and locking bar, and lock sheet is along the circumferential direction mounted on lock by torsional spring
On tight bar, lock sheet inner wall is close to cone bar installation；The locking bar is connect with sliding rail, is locked and is installed between bar and sliding rail
There is secondary bearing, through-hole is equipped among locking bar, the interior bar passes through through-hole and connect with cone bar.
Preferably, the lock sheet has three pieces, is circumferentially uniformly distributed along cone bar, along cone bar radial direction under the action of torsional spring
It opens.
Preferably, the power device includes motor and the transmission gear that connect with motor output shaft, the transmission gear
Installation is engaged with driving gear.
Preferably, the guide rail is cylindrical shape, and guide rail inner wall is equipped with the guide channel cooperated with guide protrusion.
The advantageous effect of present invention is that:
(1) present invention is the cone rod locking mechanism driven by lead screw principle, and structure is simple, and handling ease realizes catching machine
Structure quick-expansion and capture are completed flexible and swelling capture only with a motor driven in the course of work and are acted, significantly smart
Letter control system, and this mechanism takes full advantage of space structure, be oriented to and positioned using guide rail and sliding rail, ensure that
Mechanism is elegance.
(2) mechanism of the present invention completes expanding-contracting action using gear and lead screw cooperation, realizes the transmission of mechanism integral rigidity,
Transmission is accurate.
Detailed description of the invention
Fig. 1 is tilt filter figure of the present invention；
Fig. 2 is front view of the present invention；
Fig. 3 is the present invention along A-A cross-sectional view；
Fig. 4 is the present invention along C-C cross-sectional view；
Fig. 5 is the present invention along D-D cross-sectional view；
Fig. 6 is screw mechanism of the present invention and locking device assembling schematic diagram；
Fig. 7 is operation schematic diagram of the present invention；
Fig. 8 is that screw mechanism stretches out schematic diagram；
Fig. 9 is that screw mechanism locks schematic diagram；
Figure 10 is that screw mechanism discharges schematic diagram；
Figure 11 is that screw mechanism resets schematic diagram.
Specific embodiment
The present invention is further described with reference to the accompanying drawing.
As shown in figures 1 to 6, a kind of telescopic locking mechanism of lead screw driving, including guide rail 1 and screw mechanism 5, the lead screw
5 one end of mechanism is equipped with fixing seat 4, and screw mechanism 5 is connect with fixing seat 4 by fixing sleeve 3, screw mechanism 5 and fixing seat 4 it
Between be equipped with level-one bearing 10,5 other end of screw mechanism is mounted in guide rail 1, and 5 opposite rail 1 of screw mechanism realizes stretching motion,
The screw mechanism 5 is located at 1 one end of guide rail and is equipped with locking device 6, and locking device 6 is installed along 5 circumferencial direction of screw mechanism, silk
Thick stick mechanism 5 can act on locking device 6 by expanding-contracting action and complete release and swelling movement, be equipped on the fixing sleeve 3
Power device 2, power device 2 are used to that screw mechanism 5 is driven to complete expanding-contracting action.
As shown in figures 1 to 6, the screw mechanism 5 includes interior bar 52 and the two-level sleeve for being coaxially set in 52 outer wall of interior bar
53,53 wall coaxial of two-level sleeve is arranged with level-one sleeve 54, and 54 outer wall of level-one sleeve, which is arranged, is equipped with sliding rail 55, described
Interior bar 52 is removably connected with cone bar 51 close to 1 one end of guide rail, bores outside 6 energy protruding rail 1 of bar 51 and locking device；
54 inner wall of level-one sleeve is equipped with level-one internal screw thread, and level-one sleeve 54 close to 1 one end of guide rail, radially show by Circle-Array
Multiple locating slots, level-one stop device 9 is equipped in level-one locating slot, and the level-one stop device 9 includes level-one stop sleeve 91
With the level-one detent balls 93 being mounted in level-one stop sleeve 91, level-one stop sleeve 91 is cylindrical shape, and is set as closed at one end, separately
It is open at one end, level-one pressure spring 92 is equipped between level-one stop sleeve 91 and level-one detent balls 93,91 closed end of level-one stop sleeve abuts against
The installation of 55 inner wall of sliding rail, level-one detent balls 93 contact the installation of 53 outer wall of two-level sleeve, and 54 outer wall of level-one sleeve is equipped with driving
Gear, it is preferred that driving gear is installed close to 4 one end of fixing seat, and level-one bearing is equipped between level-one sleeve 54 and fixing seat 4
10, it is preferred that level-one bearing 10 is ball bearing, and the level-one sleeve 54 is equipped with 10 mounting groove of level-one bearing, level-one bearing
10 are installed in the mounting groove of level-one sleeve 54, and level-one sleeve 54 is not connected with fixing seat 4；
53 outer wall of two-level sleeve is equipped with the second level external screw thread with level-one screw-internal thread fit, the other end close to 4 one end of fixing seat
Equipped with support convex, support convex is arranged along 53 outer wall circumference of two-level sleeve, the second level external screw thread on 53 outer wall of two-level sleeve with
The second level locking groove 531 cooperated with level-one detent balls 93 is equipped between support convex, second level locking groove 531 abuts second level external screw thread
Setting, 531 Circle-Array of second level locking groove are shown multiple, and level-one detent balls 93 can roll into second level locking groove 531 in work
Stop is carried out, 93 a part of level-one detent balls is located in second level locking groove 531, and another part is located in level-one stop sleeve 91, and one
Grade detent balls 93 limit 53 versus primary sleeve 54 of two-level sleeve and continue to rotate stretching；53 inner wall of two-level sleeve is equipped with spiral shell in second level
Line, second level internal screw thread one end are along the circumferential direction equipped with second level locking groove 531, and second level locking groove 531 is located at second level internal screw thread
Between support convex, 53 internal diameter of two-level sleeve at second level locking groove 531 is set and is less than second level internal thread diameter, the second level
Second level stop device 8 is installed, the second level stop device 8 includes second level stop sleeve 81 and is mounted on second level in locking groove 531
Second level detent balls 83 in stop sleeve 81, second level stop sleeve 81 is cylindrical shape, and is set as closed at one end, another end opening, two
Second level pressure spring 82 is equipped between grade stop sleeve 81 and second level detent balls 83,81 closed end of second level stop sleeve abuts against in level-one sleeve 54
The level-one internal screw thread of wall is installed, and second level detent balls 83 contact the installation of 52 outer wall of interior bar, and the second level internal screw thread other end is equipped with limit
Position internal screw thread, the limit internal screw thread are arranged close to 4 one end of fixing seat, and limit screw-internal thread fit is equipped with interior bar gag lever post 56,
Square hole is equipped in interior bar gag lever post 56；
The interior bar 52 is equipped with 52 external screw thread of interior bar with second level screw-internal thread fit, and 52 external screw thread one end of interior bar is equipped with and second level
Multiple interior bar locking grooves 521 that detent balls 83 cooperate, second level detent balls 83 can be rolled into interior bar locking groove 521 and be carried out in work
Stop, limitation interior bar 52 continue to rotate stretching with respect to two-level sleeve 53；The interior bar 52 of the 52 external screw thread other end of interior bar is set as rectangular,
The square hole that the rectangular one end of interior bar 52 passes through in 52 gag lever post of interior bar extends to outside fixing seat 4.
In order to realize the expanding-contracting action of screw mechanism 5, guarantee flexible guiding precisely, the sliding rail 55 is cylindrical shape, sliding rail
55 inner walls are equipped with annulus positioning protrusion, and annulus positioning protrusion contacts setting, two-level sleeve with the support convex on two-level sleeve 53
53 versus primary sleeve, 54 rotary motion drives sliding rail 55 axially movable, and 55 outer cylinder of sliding rail is axially disposed guide protrusion,
Guide protrusion is shown multiple in 55 outer cylinder Circle-Array of sliding rail, and two-level sleeve 53 may be implemented in guide protrusion and interior bar 52 is stretched along axial direction
Precise positioning is realized in contracting.
As shown in figures 1 to 6, the locking device 6 includes lock sheet 61 and locking bar 63, and 61 inner wall of lock sheet is close to cone
Bar 51 is mounted on locking bar 63 along cone 51 circumferencial direction of bar installation, lock sheet 61 by torsional spring 62, torsional spring 62 and lock sheet
Seat 63 is attached by 62 axis of torsional spring；The locking bar 63 is connect with sliding rail 55, is locked and is pacified between bar 63 and sliding rail 55
It equipped with secondary bearing 7, locks and is equipped with through-hole among bar 63, the interior bar 52 passes through through-hole and connect with cone bar 51, interior bar 52
Opposite two-level sleeve 53 recycles band mantle bar 51 and recycles, and cone bar 51 struts lock sheet 61 around and completes swelling movement, at this moment may be used
To complete arresting for satellite；Preferably, the lock sheet 61 has a three pieces, lock sheet 61 be close to cone bar 51 be set as on one side with outside shaft
The cambered surface of end face cooperation is circumferentially uniformly distributed along cone bar 51, is radially expanded under the action of torsional spring 62 along cone bar 51.
As shown in figures 1 to 6, in order to realize that the expanding-contracting action of screw mechanism 5, screw mechanism 5 provide dynamic by power device 2
Power source, the power device 2 include motor 21 and export the transmission gear 22 of axis connection with motor 21, the transmission gear 22 with
Drive gear engagement installation.
As shown in figures 1 to 6, in order to cooperate the axial movement of sliding rail 55, the guide rail 1 is cylindrical shape, and 1 inner wall of guide rail is equipped with
With the guide channel of guide protrusion cooperation.
The course of work of the invention are as follows:
As shown in fig. 7, when capturing satellite, after telescopic locking mechanism enters satellite engine jet pipe inside, laser range finder inspection
A size is measured, the laser range finder is the prior art, arrived predetermined position by comparing determining telescopic locking mechanism；Electricity
Machine 21 receives signal and starts to rotate forward work, as shown in figure 8, motor 21 transfers torque to level-one sleeve 54 by transmission gear 22
On, level-one sleeve 54 is mounted in fixing seat 4 by fixing sleeve 3, and fixing sleeve 3 limits level-one sleeve 54 and is axially moved, level-one set
54 rotations of cylinder drive the rotation of two-level sleeve 53 and versus primary sleeve 54 is axially outward, and second level detent balls 83 are caught at this time
In interior bar locking groove 521, without relative motion, two-level sleeve 53 drives interior bar 52 and sliding rail 55 together for interior bar 52 and two-level sleeve 53
Axially movable outside protruding rail 1, while sliding rail 55 drives locking device 6 axially movable, to enter together when boring 51 head of bar
Satellite engine jet pipe throat reaches predetermined value (maximum value set as 60mm), as shown in figure 9, level-one detent balls 93 are blocked at this time
Enter in second level locking groove 531,53 versus primary sleeve 54 of two-level sleeve stops operating；At this point, motor 21 continues to rotate forward, level-one set
Cylinder 54 continues to rotate together with two-level sleeve 53, and driving two-level sleeve 53 and interior bar 52 relatively rotate motor 21 indirectly, interior bar 52
Can only axially movable, 21 torque of motor makes second level detent balls 83 free interior bar locking groove 521, and interior bar 52 is with respect to two-level sleeve 53
It axially contracts, interior bar 52 is shunk with mantle bar 51, and cone bar 51 acts on lock sheet 61 along cone 51 radial motion of bar, and lock sheet 61 exists
It is strutted under the action of torsional spring 62, until three distracted outer diameters of lock sheet 61 are greater than the maximum gauge of engine jet pipe throat；Three
A lock sheet 61 tightly encase cone bar 51, target is defended in clamping engine jet pipe throat after the complete distending of lock sheet 61, completion
The capture of star.
When discharging satellite, as shown in figs. 10-11, setting motor 21 is inverted, and two-level sleeve 53 is blocked by level-one detent balls 93
Firmly, 53 versus primary sleeve 54 of two-level sleeve drives interior bar 52 with respect to two-level sleeve 53 along axis without rotation, the rotation of two-level sleeve 53
To stretching, interior bar 52 is stretched out with mantle bar 51, and cone bar 51 acts on lock sheet 61 and gradually withdraws along 51 radial direction of cone bar, until second level is stopped
Dynamic ball 83 snaps into interior bar locking groove 521, and interior bar 52 and two-level sleeve 53 are locked, and lock sheet 61 discharges completely；Two-level sleeve 53
The frictional force for overcoming level-one detent balls 93 makes level-one detent balls 93 free second level locking groove 531,53 versus primary set of two-level sleeve
Cylinder 54 inverts, and two-level sleeve 53 drives interior bar 52 and sliding rail 55 to withdraw in guide rail 1 axially movable together, is recovered to predetermined value
(maximum value set as 60mm) after in place, locking device 6 realize reset complete release.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device
Or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as in present invention protection
The limitation of appearance.
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate the description present invention and simplifies description, does not in addition state such as,
Above-mentioned word has no special meaning.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
But these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (7)
1. a kind of telescopic locking mechanism of lead screw driving, which is characterized in that including guide rail and screw mechanism, the screw mechanism one
End is equipped with fixing seat, and screw mechanism is connect with fixing seat by fixing sleeve, and driving screw mechanism is equipped on the fixing sleeve
The power device of movement, the screw mechanism other end are mounted in guide rail, and screw mechanism opposite rail realizes stretching motion, the silk
Thick stick mechanism is located at guide rail one end and is equipped with locking device.
2. a kind of telescopic locking mechanism of lead screw driving according to claim 1, which is characterized in that the screw mechanism packet
It includes interior bar and is coaxially set in the two-level sleeve of interior bar outer wall, the two-level sleeve wall coaxial is arranged with level-one sleeve, level-one
Sleeve outer wall, which is arranged, is equipped with sliding rail, and the interior bar is removably connected with cone bar close to guide rail one end；
The level-one sleeve lining be equipped with level-one internal screw thread, level-one sleeve close to guide rail one end radially Circle-Array show it is multiple fixed
Position slot, level-one stop device is equipped in level-one locating slot, and the level-one stop device includes level-one stop sleeve and is mounted on one
Level-one detent balls in grade stop sleeve are equipped with level-one pressure spring, the contact of level-one stop sleeve between level-one stop sleeve and level-one detent balls
The installation of sliding rail inner wall, level-one detent balls contact the installation of two-level sleeve outer wall, and the level-one sleeve outer wall is equipped with driving gear, described
Level-one bearing is mounted between level-one sleeve and fixing seat；
The two-level sleeve outer wall is equipped with the second level external screw thread with level-one screw-internal thread fit close to fixing seat one end, and the other end is equipped with
Support convex is equipped with the second level stop cooperated with level-one detent balls on two-level sleeve outer wall between second level external screw thread and support convex
Slot, second level locking groove are arranged against second level external screw thread, and two-level sleeve inner wall is equipped with second level internal screw thread, second level internal screw thread one end
Radially Circle-Array shows two-stage positioning slot, installs two-level sleeve internal diameter at two-stage positioning slot and is less than second level internal thread diameter, institute
It states and second level stop device is installed in two-stage positioning slot, the second level stop device includes second level stop sleeve and is mounted on second level and stops
Second level detent balls in dynamic set, are equipped with second level pressure spring between second level stop sleeve and second level detent balls, second level stop sleeve contacts level-one
Sleeve lining installation, second level detent balls contact the installation of interior bar outer wall, and the second level internal screw thread other end is equipped with limit internal screw thread, institute
It states limit internal screw thread to be arranged close to fixing seat one end, limits and be combined with interior bar gag lever post on internal screw thread, be equipped in interior bar gag lever post
Square hole；
The interior bar is equipped with the interior bar external screw thread with second level screw-internal thread fit, and the outer spiral shell one end of interior bar is equipped with matches with second level detent balls
The interior bar of the multiple interior bar locking grooves closed, the outer spiral shell other end of interior bar is set as rectangular, and interior bar passes through the square hole in interior bar gag lever post
It extends to outside fixing seat；The level-one stop bulb diameter is greater than second level stop bulb diameter.
3. a kind of telescopic locking mechanism of lead screw driving according to claim 2, which is characterized in that the sliding rail is cylinder
Shape, sliding rail inner wall are equipped with annulus positioning protrusion, and annulus positioning protrusion contacts setting with support convex, and sliding rail outer cylinder is axially disposed
Guide protrusion, guide protrusion is in sliding rail outer cylinder circumference array.
4. a kind of telescopic locking mechanism of lead screw driving according to claim 3, which is characterized in that the locking device packet
Lock sheet and locking bar are included, lock sheet is along the circumferential direction mounted on locking bar by torsional spring, and lock sheet inner wall is close to cone
Bar installation；The locking bar is connect with sliding rail, is locked and is equipped with secondary bearing between bar and sliding rail, is locked and is set among bar
There is through-hole, the interior bar passes through through-hole and connect with cone bar.
5. a kind of telescopic locking mechanism of lead screw driving according to claim 4, which is characterized in that the lock sheet has three
Piece is circumferentially uniformly distributed along cone bar, is radially expanded under the action of torsional spring along cone bar.
6. a kind of telescopic locking mechanism of lead screw driving according to claim 2, which is characterized in that the power device packet
The transmission gear for including motor and connecting with motor output shaft, the transmission gear engage installation with driving gear.
7. the telescopic locking mechanism of -6 any a kind of lead screw drivings according to claim 1, which is characterized in that the guide rail
For cylindrical shape, guide rail inner wall is equipped with the guide channel cooperated with guide protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910513547.4A CN110228609A (en) | 2019-06-14 | 2019-06-14 | A kind of telescopic locking mechanism of lead screw driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910513547.4A CN110228609A (en) | 2019-06-14 | 2019-06-14 | A kind of telescopic locking mechanism of lead screw driving |
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| CN110228609A true CN110228609A (en) | 2019-09-13 |
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| CN201910513547.4A Pending CN110228609A (en) | 2019-06-14 | 2019-06-14 | A kind of telescopic locking mechanism of lead screw driving |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547277A (en) * | 2020-05-25 | 2020-08-18 | 中国科学院空间应用工程与技术中心 | Automatic locking and releasing mechanism with limiting function and locking and releasing operation method |
| CN111924137A (en) * | 2020-08-18 | 2020-11-13 | 天津航天机电设备研究所 | Miniaturized scalable mechanism capable of being produced in batches |
| CN114104343A (en) * | 2021-12-28 | 2022-03-01 | 中国科学院长春光学精密机械与物理研究所 | Butt joint locking mechanism for space optical load |
| CN114104524A (en) * | 2021-09-30 | 2022-03-01 | 北京空间飞行器总体设计部 | Sample packaging device |
| CN114447560A (en) * | 2022-02-21 | 2022-05-06 | 北京劢亚科技有限公司 | Satellite antenna and satellite |
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| CN111547277A (en) * | 2020-05-25 | 2020-08-18 | 中国科学院空间应用工程与技术中心 | Automatic locking and releasing mechanism with limiting function and locking and releasing operation method |
| CN111924137A (en) * | 2020-08-18 | 2020-11-13 | 天津航天机电设备研究所 | Miniaturized scalable mechanism capable of being produced in batches |
| CN111924137B (en) * | 2020-08-18 | 2022-02-15 | 天津航天机电设备研究所 | Miniaturized scalable mechanism capable of being produced in batches |
| CN114104524A (en) * | 2021-09-30 | 2022-03-01 | 北京空间飞行器总体设计部 | Sample packaging device |
| CN114104343A (en) * | 2021-12-28 | 2022-03-01 | 中国科学院长春光学精密机械与物理研究所 | Butt joint locking mechanism for space optical load |
| CN114104343B (en) * | 2021-12-28 | 2023-12-15 | 中国科学院长春光学精密机械与物理研究所 | Butt-joint locking mechanism for space optical load |
| CN114447560A (en) * | 2022-02-21 | 2022-05-06 | 北京劢亚科技有限公司 | Satellite antenna and satellite |
| CN114671054A (en) * | 2022-04-11 | 2022-06-28 | 哈尔滨工业大学 | Inclined strut type floating self-adaptive spray pipe capturing tool |
| CN114671054B (en) * | 2022-04-11 | 2023-03-10 | 哈尔滨工业大学 | Inclined strut type floating self-adaptive spray pipe capturing tool |
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