A kind of break catching apparatus for Space Rotating noncooperative target
Technical field
The invention belongs to Space Rotating noncooperative targets to arrest field, be related to a kind of for the non-cooperative target of Space Rotating
Target break catching apparatus.
Background technology
Due to external disturbance, most of noncooperative targets float spin in space.It is different from cooperative target, non-cooperative target
Mark, which can not determine, arrests a little, therefore can not be arrested using conventional contacts point mode.Secondly, break catching apparatus and rotation noncooperative target
Between there are relative motion, when arresting, break catching apparatus can be by impact vibration, and this vibration can be directly delivered to ontology boat
Its device may result in spacecraft failure.
Invention content
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of for Space Rotating noncooperative target
Break catching apparatus, which is adapted to and rotates noncooperative target and arrest, and can slow down the collision being subject in capture process
Impact force, to reduce disturbing influence of the impact to active spacecraft.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of break catching apparatus for Space Rotating noncooperative target, including chassis, and it is installed on arresting on chassis
Net pawl;The root junction of motor there are one settings on chassis, arrest net pawl and driving device is equipped with buffer gear;Motor is logical
Over-driving device drives the rotation of arrest net pawl, and then the opening and closing angle for changing arrest net pawl makes arrest net claw type at an outer envelope
Embrace noncooperative target.
The present invention, which further improves, to be:
Chassis is circular ring structure.
Arrest net pawl includes several teeth-pawl mechanism being evenly distributed on chassis, and each tooth-pawl mechanism is by a middle part
Pawl with dog-ear and two tooth compositions for being assemblied in radix unguis portion.
The quantity of tooth-pawl mechanism is five.
Driving device includes several single driving units being arranged on chassis, for being done to arrest net pawl transmission torque
Go out the cAN _ SNture of opening or closure.
Each list driving unit includes a microswitch and a universal joint, is pacified by universal joint per rooted tooth-pawl mechanism
On chassis, and the end of universal joint is connected by spacer pin with microswitch;When head end list driving unit is in the drive of motor
After dynamic lower work, head end list driving unit drives the microswitch of next single driving unit, and then microswitch passes through positioning
Pin drives universal joint, and the microswitch of the torque of motor toward next single driving unit is exported, to drive next list to drive
Moving cell.
Buffer gear includes torsional spring and rotating bracket, and rotating bracket is installed on universal joint, and torsional spring is set to rotating bracket
Between radix unguis portion;In noncooperative target capture process, when tooth-pawl mechanism, which collapses, to be closed, noncooperative target and pawl is arrested
Collision, shock loading can drive torsional spring to reverse, and then play buffering effect.
The external envelope geometric dimension of tooth-pawl mechanism can make noncooperative target that can not escape.
Compared with prior art, the invention has the advantages that:
The opening and closing for the spoke that the present invention is made of design five teeth-pawl mechanism are realized and are rotated to " bearhug "
Noncooperative target.After hock is closed, a fixed external envelope can be formed, which can inhibit noncooperative target
Motion range makes it that can not escape.When the present invention collides in capture process, impact force action is extended by compressed spring
Time, and then reduce impact force.In addition, the present invention is also connected by universal joint and microswitch, five teeth-pawl mechanism is made to realize
Series control substantially reduces the complexity of control, improves the reliability of control.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention;
Fig. 2 is turning gear of the present invention-pawl mechanism part module diagram;
Fig. 3 is the schematic diagram of tandem drive microswitch of the present invention;
Fig. 4 is the schematic diagram of the tandem drive universal joint of the present invention.
Wherein, the chassis 1-;2- teeth-pawl mechanism;3- motors;4- pawls;5- teeth;6- microswitches;7- universal joints;8- is limited
Pin.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings:
Referring to Fig. 1-4 present invention, the present invention is directed to the break catching apparatus of Space Rotating noncooperative target, including circular ring structure
Chassis 1, and be installed on the One On The Chassis arrest net pawl, arrest net pawl include several being evenly distributed on the One On The Chassis tooth-pawl machine
Structure 2;There are one motors 3, motor 3 to rotate by driving device band moving teeth-pawl mechanism 2, and then change tooth-pawl for setting on chassis 1
The opening and closing angle of mechanism 2 makes several teeth-one outer envelope of the formation of pawl mechanism 2 embrace noncooperative target.It has been evenly arranged on chassis 1
Five teeth-pawl mechanism 2, each tooth-pawl mechanism 2 are carried the pawl 4 and two teeth 5 for being assemblied in radix unguis portion of dog-ear by a middle part
Composition;Driving device is to be arranged in the One On The Chassis several single driving unit compositions, for tooth -2 transmission torque of pawl mechanism so as to
Make the cAN _ SNture of opening or closure;Each list driving unit includes microswitch 6 and universal joint 7, is arrested when being assemblied in
After the head end list driving unit work on device chassis, microswitch can be driven, then microswitch drives universal joint, by motor
The microswitch of torque toward next single driving unit exports, to drive next single driving unit.Tooth-pawl mechanism 2 and drive
The buffer gear of the root junction assembly of dynamic device, buffer gear are made of torsional spring, rotating bracket;It is logical per rooted tooth-pawl mechanism 2
Spacer pin 8 is crossed to connect with microswitch 6.The external envelope geometric dimension of tooth-pawl mechanism can make noncooperative target that can not escape.
The principle of the present invention:
It is difficult that determination is arrested in capture process since rotation noncooperative target movement has motion state uncertain
Point.During close to noncooperative target, connect using point as shown in Figure 1, the present invention be directed to rotate noncooperative target
It touches and arrests, but by being closed multiple teeth-pawl mechanism of break catching apparatus, it forms one and arrests external envelope, the non-cooperation of restrict
The movement of target.In order to realize that " bearhug formula " is arrested, five sets of teeth-pawl mechanism is designed;Single tooth-pawl mechanism is that had by a middle part
The pawl of dog-ear and two tooth compositions for being assemblied in radix unguis portion, and " bearhug formula " arrest net pawl is made of five sets of teeth-pawl mechanism, and
The even chassis for being distributed in break catching apparatus.Can be with turning gear-pawl mechanism by motor output torque, and then change tooth-pawl mechanism
Envelope is arrested in opening and closing angle for noncooperative target formation, final to realize that " bearhug formula " is arrested.In the outsourcing of design tooth-pawl mechanism
When network geometric dimension, therefore, to assure that the webs between two fingers cannot be such that noncooperative target escapes.
As shown in Fig. 2, when arresting rotation noncooperative target, it is opposite due to existing between noncooperative target and break catching apparatus
Movement, therefore there is collision.Therefore the present invention delays in the buffer gear of the root junction of tooth-pawl mechanism and driving device assembly
Punch mechanism is made of torsional spring, rotating bracket.In noncooperative target capture process, when tooth-pawl mechanism, which collapses, to be closed, if non-
Cooperative target is collided with pawl is arrested, and shock loading can drive torsional spring to reverse, and then play buffering effect.When being unfolded to move,
It directly drives axis and passes through movement of the spacer pin with moving teeth-pawl mechanism.
As shown in figure 3, in order to simplify design, five teeth-pawl mechanism realizes control using tandem drive, is driven in single motor
Under the conditions of dynamic, torque is transmitted to by each tooth-pawl mechanism unit by microswitch and universal joint, to realize non-cooperative target
Target " bearhug " is arrested.Drive arrangement is on the chassis of break catching apparatus, for being made to tooth-pawl mechanism transmission torque
The cAN _ SNture opened or be closed, five rooted teeth-pawl mechanism use tandem drive method, and drive module is by respectively driving five
Single driving unit of tooth-pawl mechanism forms, and each list driving unit is made of microswitch and universal joint.Dress is arrested when being assemblied in
After the head end list driving unit work of bottom set disk, microswitch can be driven, then microswitch drives universal joint, by the power of motor
The microswitch of square toward next single driving unit exports, to drive next single driving unit.Pass through per rooted tooth-pawl mechanism
Spacer pin is connect with microswitch, only with single motor in capture process, can simplify drive module, is arrested to improve
The reliability of task and safety.
The course of work of the present invention:
Entirely capture process is:It provides and arrests execution, motor is moved to direction is collapsed, and drives universal joint, band moving teeth-pawl machine
Structure is closed.It collides in arresting, it, can be with band moving teeth-pawl mechanism to expansion side if impact force is more than scheduled threshold value
To movement, and then torsional spring is compressed, slow down impact, tooth-pawl mechanism for implementing is protected.Motor holding torque in this process, directly
It is arrested to noncooperative target " bearhug " is completed.
It is to catch rotation noncooperative target by controlling hock opening and closing corner grasper that " the bearhug formula " of the present invention, which is arrested, can not determined
It can also realize and arrest in the case of arresting a little.The opening and closing of five rooted teeth-pawl mechanism can form closing or semi-enclosed
The enveloping space can prevent rotation noncooperative target escape;Simultaneously by controlling motor speed, the opening and closing of tooth-pawl mechanism are controlled
Angle is to realize that " bearhug " formula is arrested.Impact vibration slowing device, makes it in capture process, slow down because noncooperative target and
Break catching apparatus collides and the impact of generation.Tandem drive, can be while opening and closing angle be arrested in effective control, simplify control side
Method improves reliability and the safety of task.
The above content is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, every to press
According to technological thought proposed by the present invention, any change done on the basis of technical solution each falls within claims of the present invention
Protection domain within.