CN104925273A - Manual unlocking device - Google Patents
Manual unlocking device Download PDFInfo
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- CN104925273A CN104925273A CN201510240298.8A CN201510240298A CN104925273A CN 104925273 A CN104925273 A CN 104925273A CN 201510240298 A CN201510240298 A CN 201510240298A CN 104925273 A CN104925273 A CN 104925273A
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- main shaft
- gear
- manual unlocking
- cushion block
- unlocking device
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Abstract
The invention provides a manual unlocking device which comprises a gear and a spindle. A center sliding block is arranged in a center hole of the spindle. The spindle is provided with at least one sliding groove through which the center hole and the outside of the spindle are communicated in the radial direction. A sliding key is arranged in the sliding groove correspondingly. When the gear and the spindle are in the locked state, the sliding key is located in a sliding key slot, and the gear is circumferentially limited relative to the spindle. When the gear and the spindle are in the unlocked state, the center sliding block, a push rod and the sliding key are in axial linkage until the sliding key is disengaged from the sliding key slot in the gear, the circumferential limitation of the gear relative to the spindle is released. The manual unlocking device can be widely applied to occasions where the driving mode is changed to the follow-up mode and high reliability is required. The manual unlocking device is simple in structure, easy to operate and low in weight, can improve the system reliability remarkably, and can also realize reverse operation for mechanism locking. The reverse operation provides an effective solution for various occasions needing manual unlocking.
Description
Technical field
The present invention relates to mechanical design field, particularly, relate to a kind of manual unlocking device.
Background technology
Need to use lock/unlock device in many mechanical fields, the driving under this kind of high reliability request changes servo-actuated occasion, as field of aerospace.Under the requirement of space station reliability, often need manually to get involved to guarantee that whole system is normally run, the indexing mechanism of space station is no exception, when this space station indexing mechanism manual unlocking device is mainly used in indexing mechanism fault, manual releasing joint driving mechanism is to the constraint of indexing mechanism, make cosmonaut pivoted arm can be transferred to respective regions, do not affect space station and normally run.
In space structure field of mechanisms, the manual unlocking device of said function is integrated in corresponding parts or component Design more, does not generally do independent design.Complicated tripper often easily causes the maloperation of cosmonaut and reduces the stability of system.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of manual unlocking device.May be used for space station indexing mechanism or other need conveniently to realize to lock, the device of unlocking function, this manual unlocking device structure is simple, is easy to operation, lightweight, can significantly improve system reliability, can reverse operating during conditions permit, realizes mechanism's locking.
According to a kind of manual unlocking device provided by the invention, comprising: gear and main shaft;
Central slider is provided with in the centre hole of described main shaft; Described main shaft is radially provided with the chute outside the described centre hole of at least one connection and main shaft, and in described chute, correspondence is provided with feather key, and described feather key is connected with described central slider by pull bar; Described main shaft is provided with the axially stop block moved axially for limiting described gear;
Described gear center hole is provided with the featherway corresponding with described feather key, and described gear to be installed on described main shaft and by described axially stop block axial limiting;
Under the state of described gear and described spindle lock, described feather key is positioned at described featherway, and described gear is spacing relative to described main shaft circumference;
Under the state that described gear and described main shaft unlock, described central slider, pull bar and described sliding key shaft depart from the featherway on described gear to interlock to described feather key, described gear is relative to the spacing releasing of the circumference of described main shaft.
As a kind of embodiment, the centre hole of described main shaft is provided with negative thread, and described central slider is provided with the outside thread corresponding with described negative thread.
As a kind of embodiment, one end of described central slider is provided with the polygon counterbore for grafting spanner.
As a kind of embodiment, one end of described pull bar is placed in described central slider;
Described central slider comprises central slider main body and cushion block, and one end of described central slider main body is provided with the holding part corresponding with described cushion block, and described pull bar to be placed on described cushion block and by described cushion block and described holding part axial limiting.
As a kind of embodiment, described holding part comprises a milling oblate post corresponding with described cushion block centre hole, and described cushion block is arranged in described central slider by the oblate post of described milling, is provided with tapped bore in the centre hole of the oblate post of described milling;
Described cushion block comprises small diameter portion and major diameter part, and the outer wall of described small diameter portion and one end centre hole of described pull bar belong to free-running fit;
It is spacing that described disc cushion block and the oblate post of described milling realize circumference through positive, and the oblate post of described milling is passed the centre hole of described cushion block and is connected with this cushion block by tightening screw, and this tightening screw is provided with pad to realize disc cushion block axial restraint.
As a kind of embodiment, the center bore inner wall of described main shaft is provided with internal chute vertically, and described central slider is provided with the raised line corresponding with described internal chute.
As a kind of embodiment, the center bore inner wall of described main shaft is provided with raised line vertically, and described central slider is provided with the internal chute corresponding with described raised line.
As a kind of embodiment, described gear center hole is arranged 2, or 4, or 6 described featherways.
As a kind of embodiment, the inhibiting device on described main shaft is the upper groove band being located on described main shaft.
As a kind of embodiment, the inhibiting device on described main shaft is two bulge loops being located on described main shaft periphery, and the gear constant spacing between two described bulge loops equals the center thickness of described gear.
Tripper provided by the invention, realizes moving axially of feather key by the screw thread pair of threaded shaft and axis hole, realizes indexing mechanism manual unlocking by the constraint of releasing gear circumference, can reverse operating during conditions permit, realizes indexing mechanism locking.
The present invention's driving that can be widely used under high reliability request changes servo-actuated occasion.Its structure is simple, is easy to operation, lightweight, can significantly improve system reliability, can reverse operating during conditions permit, realizes mechanism's locking.The present invention is that the various occasion of manual unlocking that needs provides a kind of actv. solution.
The beneficial effect that the present invention has is: realizing manual unlocking function while, possess structure simple, be easy to operation, lightweight and significantly improve the features such as system reliability, and can reverse operating, realize mechanism's locking.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, obviously, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In accompanying drawing:
Fig. 1 is a kind of manual unlocking device initial condition (lock-out state) the B-B cutaway view for space station indexing mechanism in embodiment;
Fig. 2 is a kind of manual unlocking device initial condition (lock-out state) the A-A cutaway view for space station indexing mechanism in embodiment;
Fig. 3 is a kind of manual unlocking device final state (released state) the D-D cutaway view for space station indexing mechanism in embodiment;
Fig. 4 is a kind of manual unlocking device final state (released state) the C-C cutaway view for space station indexing mechanism in embodiment;
Fig. 5 is the three-dimensional view of the central slider main body of a kind of manual unlocking device in embodiment;
Fig. 6 is the three-dimensional view of the cushion block of a kind of manual unlocking device in embodiment.
In figure: 1-gear, 2-feather key, 3-main shaft, 4-pull bar, 5-Screw, 6-cushion block, 7-central slider, 8-pad, 9-tightening screw, 10-sleeve, 11-first finishing bevel gear cuter, 12-second finishing bevel gear cuter, 13-bearing, 14-end cap, 15-flathead screw, 16-pedestal.
Detailed description of the invention
Hereafter in the mode of specific embodiment, the present invention is described in detail by reference to the accompanying drawings.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that the embodiment that can also use other, or the amendment on 26S Proteasome Structure and Function is carried out to the embodiment enumerated herein, and can not depart from the scope and spirit of the present invention.
In the embodiment of a kind of space station provided by the invention indexing mechanism manual unlocking device, as Figure 1-4, a kind of manual unlocking device, comprising: gear and main shaft;
Central slider is provided with in the centre hole of described main shaft; Described main shaft is radially provided with the chute outside the described centre hole of at least one connection and main shaft, and in described chute, correspondence is provided with feather key, and described feather key is connected with described central slider by pull bar; Described main shaft is provided with the axially stop block moved axially for limiting described gear;
Described gear center hole is provided with the featherway corresponding with described feather key, and described gear to be installed on described main shaft and by described axially stop block axial limiting;
Under the state of described gear and described spindle lock, described feather key is positioned at described featherway, and described gear is spacing relative to described main shaft circumference;
Under the state that described gear and described main shaft unlock, described central slider, pull bar and described sliding key shaft depart from the featherway on described gear to interlock to described feather key, described gear is relative to the spacing releasing of the circumference of described main shaft.
The mode that described central slider is spirally connected by screw thread or the mode that slide connects are located in the centre hole of described main shaft, and can at this centre hole axis to moving around.
The loading strength that too much described featherway obviously can reduce main shaft is set.
As Figure 1-4, the second finishing bevel gear cuter rotated in a first direction and described first finishing bevel gear cuter realize transmission by gears meshing, produce rotation in a second direction, moment of torsion is passed to described gear by main shaft again by described first finishing bevel gear cuter, drives described gear to rotate in a second direction.Described gear realizes the locking and unlocking by the slip of feather key, in the locked state, described first finishing bevel gear cuter by the transmitting torque of main shaft to described gear make described gear in this second direction with described first finishing bevel gear cuter coaxial rotating; In the unlocked state, without circumferential application force between described gear and described main shaft, described first finishing bevel gear cuter cannot apply twisting resistance by main shaft to described gear.
Alternatively, the centre hole of described main shaft is provided with negative thread, and described central slider is provided with the outside thread corresponding with described negative thread.
Alternatively, one end of described central slider is provided with the polygon counterbore for grafting spanner.This polygon counterbore adopts the structure of hexagon counterbore usually, also can be set to the counterbore such as triangle or quadrangle, and the present invention should not be limited to this.Because the centre hole of threaded shaft in the present embodiment with described main shaft is threaded, therefore described threaded shaft can be rotated by instruments such as inner-hexagon spanners.
As a kind of embodiment, one end of described pull bar is placed in described central slider;
Described central slider comprises central slider main body and cushion block, and one end of described central slider main body is provided with the holding part corresponding with described cushion block, and described pull bar to be placed on described cushion block and by described cushion block and described holding part axial limiting.
Empty set of telling is that saying is commonly used in this area, refers to that pull bar is set in described central slider, and and there is circumferential rotary motion between described central slider.
As a kind of embodiment, as shown in Figure 5 and Figure 6, described holding part comprises a milling oblate post corresponding with described cushion block centre hole, described cushion block is arranged in described central slider by the oblate post of described milling, be provided with tapped bore in the centre hole of the oblate post of described milling, the object arranging described disc cushion block prevents from described Xi Bian cylindrical center to be threaded to get loose.
Described cushion block comprises small diameter portion and major diameter part, the outer wall of described small diameter portion and the centre hole free-running fit of described pull bar one end.Described free-running fit refers to the cooperation with gap (not comprising minimum clearance to equal zero).
It is spacing that described disc cushion block and the oblate post of described milling realize circumference through positive, and the oblate post of described milling is passed the centre hole of described cushion block and is connected with this cushion block by tightening screw, and this tightening screw is provided with pad to realize disc cushion block axial restraint.The flat setting of Double Milling of the oblate post of described milling is the coaxial rotation in order to ensure disc cushion block and described holding part, eliminates the rotary motion from described threaded shaft by the minor diameter cylindrical of described disc cushion block and described pull bar centre hole free-running fit.In order to avoid the friction between pull bar and threaded shaft to greatest extent, the gap between pull bar and disc cushion block, the gap between pull bar and threaded shaft end face all lubricant can be filled.
As the embodiment of a kind of central slider and spindle hole sliding block joint, the center bore inner wall of described main shaft is provided with internal chute vertically, and described central slider is provided with the raised line corresponding with described internal chute.
As the embodiment of another kind of central slider and spindle hole sliding block joint, the center bore inner wall of described main shaft is provided with raised line vertically, and described central slider is provided with the internal chute corresponding with described raised line.
As a kind of prioritization scheme, described gear center hole is arranged 2, or 4, or 6 described featherways.
The locking process of lock/unlock device from released state to lock-out state needs the alignment function of featherway and feather key, and cannot see because cosmonaut is possibly in practical operation the described lock/unlock device that auto levelizer inside is arranged, so this alignment function just needs arm revolving gear to aim at.Gear arranges multiple featherway differ greatly with the only alignment function difficulty arranged corresponding to a featherway, conveniently this alignment function, the featherway quantity on gear should be equal to or greater than the quantity of featherway.And the setting of featherway, owing to considering the intensity of main shaft, featherway quantity can not arrange too much, has been symmetrical arranged two featherways in the constructional drawing shown in Fig. 1.
In Fig. 1, symmetrically arranged featherway is conducive to the fitting work of pull bar, only needs the flat pull bar side direction shown in Fig. 2 to insert described symmetrically arranged featherway, then along the length direction half-twist of main shaft, can carry out connection with central slider.
As a kind of embodiment of axially stop block, the inhibiting device on described main shaft is the upper groove band being located on described main shaft.
As the embodiment of another kind of axially stop block, the inhibiting device on described main shaft is two bulge loops being located on described main shaft periphery, and the gear constant spacing between two described bulge loops equals the center thickness of described gear.
The two ends of described main shaft are connected with pedestal by bearing, and described pedestal is also provided with an end cap by flathead screw.Described main shaft is also fixedly installed a sleeve, described sleeve and described pedestal from both sides by spacing for the face clamping of the described finishing bevel gear cuter be coaxially connected with main shaft.
The present invention's driving that can be widely used under high reliability request changes servo-actuated occasion.Its structure is simple, is easy to operation, lightweight, can significantly improve system reliability, and can reverse operating, realizes mechanism's locking.The present invention is that the various occasion of manual unlocking that needs provides a kind of actv. solution.
The foregoing is only preferred embodiment of the present invention, those skilled in the art know, without departing from the spirit and scope of the present invention, can carry out various change or equivalent replacement to these characteristic sum embodiments.In addition, under the teachings of the present invention, can modify to adapt to concrete situation and material to these characteristic sum embodiments and can not the spirit and scope of the present invention be departed from.Therefore, the present invention is not by the restriction of specific embodiment disclosed herein, and the embodiment in the right of all the application of falling into all belongs to protection scope of the present invention.
Claims (10)
1. a manual unlocking device, comprising: gear and main shaft;
Central slider is provided with in the centre hole of described main shaft; Described main shaft is radially provided with the chute outside the described centre hole of at least one connection and main shaft, and in described chute, correspondence is provided with feather key, and described feather key is connected with described central slider by pull bar; Described main shaft is provided with the axially stop block moved axially for limiting described gear;
Described gear center hole is provided with the featherway corresponding with described feather key, and described gear to be installed on described main shaft and by described axially stop block axial limiting;
Under the state of described gear and described spindle lock, described feather key is positioned at described featherway, and described gear is spacing relative to described main shaft circumference;
Under the state that described gear and described main shaft unlock, described central slider, pull bar and described sliding key shaft depart from the featherway on described gear to interlock to described feather key, described gear is relative to the spacing releasing of the circumference of described main shaft.
2. a kind of manual unlocking device according to claim 1, is characterized in that, the centre hole of described main shaft is provided with negative thread, and described central slider is provided with the outside thread corresponding with described negative thread.
3. a kind of manual unlocking device according to claim 2, is characterized in that, one end of described central slider is provided with the polygon counterbore for grafting spanner.
4. a kind of manual unlocking device according to claim 2, is characterized in that, one end of described pull bar is placed in described central slider;
Described central slider comprises central slider main body and cushion block, and one end of described central slider main body is provided with the holding part corresponding with described cushion block, and described pull bar to be placed on described cushion block and by described cushion block and described holding part axial limiting.
5. a kind of manual unlocking device according to claim 4, it is characterized in that, described holding part comprises a milling oblate post corresponding with described cushion block centre hole, and described cushion block is arranged in described central slider by the oblate post of described milling, is provided with tapped bore in the centre hole of the oblate post of described milling;
Described cushion block comprises small diameter portion and major diameter part, the outer wall of described small diameter portion and the centre hole free-running fit of described pull bar one end;
It is spacing that described disc cushion block and the oblate post of described milling realize circumference through positive, and the oblate post of described milling is passed the centre hole of described cushion block and is connected with this cushion block by tightening screw, and this tightening screw is provided with pad to realize disc cushion block axial restraint.
6. a kind of manual unlocking device according to claim 1, is characterized in that, the center bore inner wall of described main shaft is provided with internal chute vertically, and described central slider is provided with the raised line corresponding with described internal chute.
7. a kind of manual unlocking device according to claim 1, is characterized in that, the center bore inner wall of described main shaft is provided with raised line vertically, and described central slider is provided with the internal chute corresponding with described raised line.
8. a kind of manual unlocking device according to claim 1, is characterized in that, described gear center hole is arranged 2, or 4, or 6 described featherways.
9. a kind of manual unlocking device according to claim 1, is characterized in that, the inhibiting device on described main shaft is the upper groove band being located on described main shaft.
10. a kind of manual unlocking device according to claim 1, is characterized in that, the inhibiting device on described main shaft is two bulge loops being located on described main shaft periphery, and the gear constant spacing between two described bulge loops equals the center thickness of described gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240298.8A CN104925273B (en) | 2015-05-13 | 2015-05-13 | Manual unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510240298.8A CN104925273B (en) | 2015-05-13 | 2015-05-13 | Manual unlocking device |
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| Publication Number | Publication Date |
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| CN104925273A true CN104925273A (en) | 2015-09-23 |
| CN104925273B CN104925273B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510240298.8A Active CN104925273B (en) | 2015-05-13 | 2015-05-13 | Manual unlocking device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0893882A (en) * | 1994-09-21 | 1996-04-12 | Tochigi Fuji Ind Co Ltd | Differential device |
| JPH08324500A (en) * | 1995-05-31 | 1996-12-10 | Toshiba Corp | Holding and releasing device of space structure |
| CN201202796Y (en) * | 2008-04-23 | 2009-03-04 | 天津赛瑞机器设备有限公司 | Beveled gear sub gap adjusting apparatus of sawing head for milling saw |
| CN102632862A (en) * | 2012-05-08 | 2012-08-15 | 天合汽车零部件（苏州）有限公司 | Auxiliary mechanism for unlocking electronic steering column lock |
| CN204175875U (en) * | 2014-07-04 | 2015-02-25 | 浙江理工大学 | A kind of adjustable twin worm speed reducer |
-
2015
- 2015-05-13 CN CN201510240298.8A patent/CN104925273B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0893882A (en) * | 1994-09-21 | 1996-04-12 | Tochigi Fuji Ind Co Ltd | Differential device |
| JPH08324500A (en) * | 1995-05-31 | 1996-12-10 | Toshiba Corp | Holding and releasing device of space structure |
| CN201202796Y (en) * | 2008-04-23 | 2009-03-04 | 天津赛瑞机器设备有限公司 | Beveled gear sub gap adjusting apparatus of sawing head for milling saw |
| CN102632862A (en) * | 2012-05-08 | 2012-08-15 | 天合汽车零部件（苏州）有限公司 | Auxiliary mechanism for unlocking electronic steering column lock |
| CN204175875U (en) * | 2014-07-04 | 2015-02-25 | 浙江理工大学 | A kind of adjustable twin worm speed reducer |
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| Publication number | Publication date |
|---|---|
| CN104925273B (en) | 2017-02-01 |
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