CN108557118B - Gravity-compensated device with return-stopping function - Google Patents
Gravity-compensated device with return-stopping function Download PDFInfo
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- CN108557118B CN108557118B CN201810319433.1A CN201810319433A CN108557118B CN 108557118 B CN108557118 B CN 108557118B CN 201810319433 A CN201810319433 A CN 201810319433A CN 108557118 B CN108557118 B CN 108557118B
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- tooth pitch
- pawl assembly
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- gravity
- ring flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
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Abstract
The invention discloses a kind of gravity-compensated devices with return-stopping function, it is made of several circular column draft springs and 2 grades of concatenated check component two parts, check component includes upper flange plate, middle ring flange, lower flange, ratchet lever, small tooth pitch pawl assembly, big tooth pitch pawl assembly, connecting cylinder composition, circular column draft spring is the parallel-connection structure arranged by circumference, free extension can be carried out with the spacing size of upper lower flange, the check of ratchet lever is realized by the setting of upper and lower size tooth pitch pawl assembly.The present invention effectively increases the rapidity of gravity compensation, and no longer elongation is in one-way movement state after spring assembly shortening, can prevent because spring assembly is repeatedly flexible to cause simple harmonic motion.
Description
Technical field
The invention belongs to spacecraft ground experimental technique fields, specifically, the present invention relates to a kind of weights of return-stopping function
Force compensating device, for providing gravity opposite balancing force when spacecraft ground test, so that spacecraft is in zero-g state.
Background technique
Patent of invention " Large Spacecraft Ground zero-gravity separation test equips (CN201510289805.7) " and " spacecraft
Vertical passive type separation test equipment (CN201310608661.8) " in the spacecraft ground separation test stated, by matching
Bring up again the gravity compensation for spacecraft.Main problem existing for the technical approach is: weight mass is larger to cause its inertia very big,
When spacecraft quickly moves, counterweight cannot quickly follow movement, and the gravity compensation for causing counterweight to provide is less than actual needs
Gravity.Therefore it struggles quickly to provide the compensation of gravity in motion process in spacecraft, make up existing for counterweight technology scheme not
Foot.
Summary of the invention
The purpose of the present invention is to provide a kind of dynamic properties, and gravity compensation excellent, with movement return-stopping function fills
It sets, the quick compensation of the gravity of spacecraft disengaging movement process is provided.
Above-mentioned technical purpose of the invention technical scheme is that.
Gravity-compensated device with return-stopping function, by 10 or more cylindrical extension springs and 2 grades of concatenated check function
Energy component two parts composition, 2 grades of concatenated check components include upper flange plate, middle ring flange, lower flange, ratchet lever, small tooth
Away from pawl assembly, big tooth pitch pawl assembly, connecting cylinder, wherein several cylindrical extension springs are by circumference arranged in parallel under
Between ring flange and middle ring flange, end is connected and fixed with lower flange and middle ring flange respectively and with the spacing size of the two
Carry out free extension, wherein connecting cylinder of the upper flange plate by center and the screw rod around the same circumference setting of connecting cylinder
It is connected and fixed with middle ring flange, two sets big tooth pitch pawl assembly is uniformly arranged on middle ring flange, two sets small tooth pitch pawl assembly
It is uniformly arranged on upper flange plate, the center of big tooth pitch pawl assembly and small tooth pitch pawl assembly is arranged in same vertical axes
On line, two ratchet levers are each passed through the central axis of corresponding big tooth pitch pawl assembly and small tooth pitch pawl assembly and and lower flange
Disk is connected and fixed, which is characterized in that and wherein, big tooth pitch pawl assembly is made of 3 big pawl, 3 sets of bolt and nuts and pedestal,
In 3 big pawl be uniformly distributed with 3 sets of bolt and nuts by 120 °, big pawl can be rotated around bolt and nut.
Wherein, it is provided centrally with tapped through hole on lower flange, for connecting external lifting bolt, surrounds tapped through hole
It is symmetrically distributed with cylindrical hole, ratchet lever passes through the fixed lower flange of cylindrical hole.
Wherein, ratchet lever is made of end baffle, small spacing ratchet, big spacing ratchet and screw rod, and each section is whole adds
Work.
Wherein, middle ring flange is made of ring flange and guide cylinder hole, and wherein guide cylinder hole is symmetrically distributed in ring flange
On, ring flange center is provided with tapped through hole, for connecting external lifting bolt.
Wherein, the center design of upper flange plate has tapped through hole, for connecting external lifting bolt.
Wherein, return-stopping function component is composed in series by 2 sets big tooth pitch pawl assembly and 2 sets small tooth pitch pawl assembly.
Wherein, a set of big tooth pitch pawl assembly and a set of small tooth pitch pawl assembly and the big tooth pitch pawl assembly of other set and
A set of small tooth pitch pawl assembly is parallel-connection structure.
The present invention effectively increases the rapidity of gravity compensation, and no longer elongation is in unidirectional after spring assembly shortening
Motion state can prevent because spring assembly stretches repeatedly causes simple harmonic motion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the gravity-compensated device with return-stopping function of the embodiment of the invention；Wherein,
1- lower flange, 2- cylindroid helical-coil extension spring, ring flange in 3-, the big tooth pitch pawl assembly of 4-, 5- upper flange plate, the small tooth pitch of 6-
Pawl assembly, 7- ratchet lever, 8- connecting cylinder；
Fig. 2 is that the structure after removing cylindroid helical-coil extension spring in the gravity-compensated device of the invention with return-stopping function is shown
It is intended to；
Wherein, ring flange in 3-, the big tooth pitch pawl assembly of 4-, 5- upper flange plate, the small tooth pitch pawl assembly of 6-, 7- ratchet
Bar, 8- connecting cylinder；
Fig. 3 is the structural schematic diagram of ratchet lever in the gravity-compensated device of the invention with return-stopping function；
Wherein, 74 be end baffle, the big spacing ratchet 72 of small spacing ratchet 73, the composition of screw rod 71；
Fig. 4 be the gravity-compensated device of the invention with return-stopping function in remove lower flange, cylindroid helical-coil extension spring,
With the structural schematic diagram of ratchet lever；
Wherein, ring flange in 3-, the big tooth pitch pawl assembly of 4-, 5- upper flange plate, the small tooth pitch pawl assembly of 6-, 8- connection circle
Column；
Fig. 5 is the structural schematic diagram of middle ring flange in the gravity-compensated device of the invention with return-stopping function；
Wherein, 31- pilot sleeve；32- similar round ring flange；
Fig. 6 is middle ring flange in the gravity-compensated device of the invention with return-stopping function, upper flange plate, connecting cylinder three
The combination diagram of component；
Wherein, ring flange in 3-, 5- upper flange plate, 8- connecting cylinder, 51- connection bolt are used for 5- upper flange plate and 3-
Middle ring flange；
Fig. 7 is big tooth pitch pawl assembly structural schematic diagram in the gravity-compensated device of the invention with return-stopping function；Wherein,
41- bolt and nut；The big pawl of 42-；43- pedestal；
Fig. 8 is the structural schematic diagram of big tooth pitch pawl in the gravity-compensated device of the invention with return-stopping function；Wherein,
The big pawl of 42-；
Fig. 9 is the structural schematic diagram of small tooth pitch pawl assembly in the gravity-compensated device of the invention with return-stopping function；
Wherein, 61- pedestal, 62- bolt and nut, the big pawl of 63-；
Figure 10 is the structural schematic diagram of small tooth pitch pawl in the gravity-compensated device of the invention with return-stopping function；Wherein,
The big pawl of 63-.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail, but this is only exemplary, it is no intended to this
The protection scope of invention carries out any restrictions.
As shown in Figure 1, Figure 2, Figure 4 shows, the gravity-compensated device with return-stopping function is by 10 cylindroid helical-coil extension springs 2 and 2
The concatenated check component two parts composition of grade, it is parallel-connection structure, end that 10 cylindroid helical-coil extension springs 2 are arranged by circumference
It is connected and fixed by screw rod and nut with two ring flanges (middle ring flange 3, lower flange 1), it can be with the spacing of two ring flanges
Size carries out free extension, 2 grades of concatenated check components include 1 upper flange plate 5,1 middle ring flange, 3,1 lower flanges 1,
2 ratchet lever 7, two small tooth pitch pawl assemblies, 6,2 big tooth pitch pawl assembly, 4,1 connecting cylinders 7 form, wherein upper method
Blue disk 5 is connected and fixed by connecting cylinder 7 and 10 screw rod with middle ring flange 3, and 2 big tooth pitch pawl assembly 4 is uniformly pacified
On middle ring flange 3,2 small tooth pitch pawl assembly 6 is uniformly mounted on upper flange plate 5, and 2 ratchet levers 7 are each passed through greatly
Tooth pitch pawl assembly 4, small tooth pitch pawl assembly 6, and be connected and fixed with 1 lower flange 1 using nut.
As shown in figure 3, ratchet lever 7 is made of end baffle 74, small spacing ratchet 73, big spacing ratchet 72, screw rod 71, respectively
Part is overall processing, and material is steel 45# modifier treatment；Wherein the effect of end baffle 74 is to prevent device work preceding or work
In work ratchet lever 7 and device undesirably fall off and the safety block that designs.Its medium and small spacing ratchet 73 and small tooth pitch pawl group
Part 6 is used cooperatively, and forms ratchet-detent mechanism；Wherein big spacing ratchet 72, which is closed with big tooth pitch pawl assembly with 4, uses, and is formed
Ratchet-detent mechanism.
As shown in figure 5, ring flange is made of 32- ring flange, 2 31- guide cylinder holes in 3-；Wherein 31- guide cylinder
Hole is symmetrically distributed on 32- ring flange, and design has corresponding through-hole on corresponding 32- ring flange.The effect in 31- guide cylinder hole
Be 7- ratchet lever is oriented to so that 7- ratchet lever keep during the motion with the radial dimension of ring flange do not occur it is big
Play；
As shown in fig. 6, passing through 10 51- bolt and nuts, 1 8- connecting cylinder in 3- between ring flange and 5- upper flange plate
Fixation is integral；The center design of 5- upper flange plate has tapped through hole, for connecting the parts such as external lifting bolt.Method in 3-
Blue disk and 5- upper flange plate are respectively that the big tooth pitch pawl assembly of 4- and the small tooth pitch component of 6- provide mounting flange, so that 3 sets of 4- are big
The check component that tooth pitch pawl assembly is formed keeps relative positional relationship, and to be respectively at ring flange and 5- upper flange in 3-
The check component around same 7- ratchet lever of disk is in corresponding with one heart.
As shown in fig. 7, the big tooth pitch pawl assembly of 1 4- is by the big pawl of 3 42-, 3 sets of 41- bolt and nuts and 1 bottom 43-
Seat composition, wherein the big pawl of 3 42-, 3 sets of 41- bolt and nuts press 120 ° of circumference uniform distributions；The big pawl of 42- can be around 41- bolt and nut
Rotation.3 big pawls of 42- are contacted with 7- ratchet lever, when ratchet lever moves upwards, big pawl under the promotion of ratchet lever from
Dynamic overturning is opened, so that ratchet lever can be with free movement.But when ratchet lever moves downward, big ratchet will be caught in the three of ratchet lever
So that ratchet lever stop motion in angular ratchet.
Fig. 8 shows the big pawl schematic diagram of 42-.The front end that big pawl is is 120 ° of arc-shaped wedge angles, has round lead in abdomen
Hole.120 ° of front end arc-shaped wedge angle is used to cooperatively form back-stop mechanism with ratchet lever, can rotate around abdomen circular through hole
As shown in figure 9, the big tooth pitch pawl assembly of 1 6- is by the big pawl of 3 63-, 3 sets of 62- bolt and nuts and 1 bottom 61-
Seat composition, wherein the big pawl of 3 63-, 3 sets of 62- bolt and nuts press 120 ° of circumference uniform distributions；The small pawl of 63- can be around 62- bolt and nut
Rotation.Working principle is identical as big detent mechanism.
Fig. 8 shows the small pawl schematic diagram of 63-.The front end of small pawl is the zigzag structure that 6 width are 30mm, in abdomen
There is circular through hole, tail portion, which has, tilts shape pressure plate structure.Zigzag structure is used to cooperatively form back-stop mechanism with ratchet lever, can be around abdomen
The rotation of portion's circular through hole.
Before device work, the pawl of 2 big tooth pitch pawl assembly, 2 small tooth pitch pawl assembly is opened manually, Xiang Xiang
Opposite direction pull upper flange plate (can external suspension centre, for example hanging is on crane) and lower flange (can external suspension centre, for example hang
Have weight), until extension spring is extended to desired elongation to reach resultant force and outer dynamic balance；At this time by 2 big tooth pitch spine
Claw assembly, 2 small tooth pitch pawl assembly pawl close up contacted with ratchet lever manually.
When the device works, lower section weight fast upward motion under other external forces, while extension spring will be quick
Shortening is followed, upward pulling force is provided always；When weight moves to highest point, and when the trend of downward freely falling body is presented,
Since the pawl on pawl assembly is resisted with ratchet lever and cause ratchet lever that can not transport downwards from upper flange plate, middle ring flange
It is dynamic, and what lower flange and ratchet rod-type were connected, thus the weight connecting with lower flange can not also move downward.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, related technical personnel
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (7)
1. the gravity-compensated device with return-stopping function, by 10 or more cylindrical extension springs and 2 grades of concatenated check function
Energy component two parts composition, 2 grades of concatenated check components include upper flange plate, middle ring flange, lower flange, ratchet lever, small tooth
Away from pawl assembly, big tooth pitch pawl assembly, connecting cylinder, wherein several cylindrical extension springs are by circumference arranged in parallel under
Between ring flange and middle ring flange, end is connected and fixed with lower flange and middle ring flange respectively and with the spacing size of the two
Carry out free extension, wherein connecting cylinder of the upper flange plate by center and the screw rod around the same circumference setting of connecting cylinder
It is connected and fixed with middle ring flange, two sets big tooth pitch pawl assembly is uniformly arranged on middle ring flange, two sets small tooth pitch pawl assembly
It is uniformly arranged on upper flange plate, the center of big tooth pitch pawl assembly and small tooth pitch pawl assembly is arranged in same vertical axes
On line, two ratchet levers are each passed through the central axis of corresponding big tooth pitch pawl assembly and small tooth pitch pawl assembly and and lower flange
Disk is connected and fixed, which is characterized in that and big tooth pitch pawl assembly is made of three big pawl, three sets of bolt and nuts and pedestal, wherein
Three big pawl is uniformly distributed with three sets of bolt and nuts by 120 °, and big pawl can be rotated around bolt and nut.
2. gravity-compensated device as described in claim 1, wherein tapped through hole is provided centrally on lower flange, for connecting
External lifting bolt is connect, is symmetrically distributed with cylindrical hole around tapped through hole, ratchet lever passes through the fixed lower flange of cylindrical hole.
3. gravity-compensated device as described in claim 1, wherein ratchet lever is by end baffle, small spacing ratchet, big spacing spine
Tooth and screw rod composition, each section is overall processing.
4. gravity-compensated device as described in claim 1, wherein middle ring flange is made of ring flange and guide cylinder hole,
Middle guide cylinder hole is symmetrically distributed on ring flange, and ring flange center is provided with tapped through hole, for connecting external hanging ring spiral shell
Nail.
5. gravity-compensated device as described in claim 1, wherein the center design of upper flange plate has tapped through hole, for connecting
Connect external lifting bolt.
6. gravity-compensated device as described in claim 1, wherein return-stopping function component is by two sets big tooth pitch pawl assembly and two
Small tooth pitch pawl assembly is covered to be composed in series.
7. gravity-compensated device as described in claim 1, wherein a set of big tooth pitch pawl assembly and a set of small tooth pitch pawl group
Part and the big tooth pitch pawl assembly of other set and a set of small tooth pitch pawl assembly are parallel-connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319433.1A CN108557118B (en) | 2018-04-11 | 2018-04-11 | Gravity-compensated device with return-stopping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319433.1A CN108557118B (en) | 2018-04-11 | 2018-04-11 | Gravity-compensated device with return-stopping function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108557118A CN108557118A (en) | 2018-09-21 |
| CN108557118B true CN108557118B (en) | 2019-12-03 |
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ID=63534508
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810319433.1A Active CN108557118B (en) | 2018-04-11 | 2018-04-11 | Gravity-compensated device with return-stopping function |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8096740B1 (en) * | 2008-01-11 | 2012-01-17 | Parker Chester V | Retractable cargo strap |
| CN103043395A (en) * | 2013-01-16 | 2013-04-17 | 中国矿业大学 | Automatic trigger broken belt capturing device for belt conveyer |
| EP2924197A2 (en) * | 2014-03-26 | 2015-09-30 | Hoppe Ag | End stop body for door and/or window handles |
| CN105599922A (en) * | 2014-11-20 | 2016-05-25 | 中国科学院沈阳自动化研究所 | A 1/6g low gravity balance hoisting device |
-
2018
- 2018-04-11 CN CN201810319433.1A patent/CN108557118B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8096740B1 (en) * | 2008-01-11 | 2012-01-17 | Parker Chester V | Retractable cargo strap |
| CN103043395A (en) * | 2013-01-16 | 2013-04-17 | 中国矿业大学 | Automatic trigger broken belt capturing device for belt conveyer |
| EP2924197A2 (en) * | 2014-03-26 | 2015-09-30 | Hoppe Ag | End stop body for door and/or window handles |
| CN105599922A (en) * | 2014-11-20 | 2016-05-25 | 中国科学院沈阳自动化研究所 | A 1/6g low gravity balance hoisting device |
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| Publication number | Publication date |
|---|---|
| CN108557118A (en) | 2018-09-21 |
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