CN109605328A - Minority carrier generation lifetime - Google Patents
Minority carrier generation lifetime Download PDFInfo
- Publication number
- CN109605328A CN109605328A CN201811375351.5A CN201811375351A CN109605328A CN 109605328 A CN109605328 A CN 109605328A CN 201811375351 A CN201811375351 A CN 201811375351A CN 109605328 A CN109605328 A CN 109605328A
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- Prior art keywords
- support member
- output shaft
- branched chain
- minority carrier
- carrier generation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/003—Programme-controlled manipulators having parallel kinematics
- B25J9/0063—Programme-controlled manipulators having parallel kinematics with kinematics chains having an universal joint at the base
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a kind of minority carrier generation lifetime, comprising: pedestal, moving platform and a plurality of movement branched chain；The movement branched chain includes driving part, support member, Hooke's hinge and screw pair；The first end of the driving part is connected by the first revolute pair of the movement branched chain with the pedestal, the second end of the driving part is provided with output shaft, the driving part drives the output shaft, so that relative rotary motion occurs for the shell of the output shaft and the driving part, the second revolute pair of the movement branched chain is formed；The first end of the support member and the driving axis connection, the support member are subjected to displacement movement on the axis direction of the movement branched chain under the drive of the output shaft, form the screw pair of the movement branched chain；The second end of the support member is connect by the Hooke's hinge with the moving platform.Parallel institution provided by the invention obtains bigger real work space while reducing the cost of parallel institution.
Description
Technical field
The present invention relates to robot field more particularly to a kind of minority carrier generation lifetimes.
Background technique
Minority carrier generation lifetime is due to becoming new research hotspot in parallel institution field, and driving element is few, construction
Simply, easy to control, applied cost with higher can be used under several scenes, such as: Medical Robot, flight mould
Quasi- device etc..
Existing minority carrier generation lifetime, with 3-RPS (Revolute pair Prismatic pair Spherical
Pair, abbreviation 3-RPS) parallel institution be representative two turn of one shifting parallel institution it is the most famous.3-RPS parallel institution usually has
There are three equal movement branched chains, every movement branched chain is made of revolute pair, prismatic pair and ball pair.Under such configuration, 3-RPS
Parallel institution has two rotations, a mobile three degree of freedom altogether.
However, the ball pair in 3-RPS parallel institution is crucial kinematic pair, required precision height, can use type at processing difficulties
It is number few, improve the cost of parallel institution.Also, effective exercise range is smaller in practical applications for ball pair, so that 3-RPS is in parallel
The real work Spatial General 6 R of mechanism is more much smaller than theoretical work space.
Summary of the invention
The present invention provides a kind of minority carrier generation lifetime, at high cost, the real work that solves minority carrier generation lifetime
The small problem in space.
The present invention provides a kind of minority carrier generation lifetime, comprising:
Pedestal, moving platform and a plurality of movement branched chain；
The movement branched chain includes driving part, support member, screw pair and Hooke's hinge；
The first end of the driving part is connected by the first revolute pair of the movement branched chain with the pedestal, the drive
The second end of dynamic component is provided with output shaft, and the driving part drives the output shaft, so that the output shaft and the drive
The shell of dynamic component sends relative rotary motion, forms the second revolute pair of the movement branched chain；The output shaft is with spiral shell
The lead screw of line；
The first end of the support member and the driving axis connection, the support member is under the drive of the output shaft
It is subjected to displacement movement on the axis direction of the movement branched chain, and relative rotation fortune occurs with the shell of the driving part
Dynamic, the displacement movement and the relative rotary motion intercouple, so that the support member forms the movement branched chain
Screw pair；
The second end of the support member is connect by the Hooke's hinge with the moving platform.
Optionally, further includes: sliding bearing；
The sliding bearing socket is in the support member, so that controllable coupled motions occur for the screw pair.
Optionally, further includes: feed screw nut；
The first end of the feed screw nut is socketed on the output shaft, the second end of the feed screw nut and the support
The first end of component connects；
The feed screw nut is used to the support member being fixed on the output shaft；
The feed screw nut is also used to cooperate with the lead screw, drives the support member in the axis of the movement branched chain
It is subjected to displacement movement on direction, and sends relative rotary motion with the shell of the driving part.
Optionally, the first end of the feed screw nut is socketed on the output shaft, comprising:
The first threaded hole is arranged in the first end of the feed screw nut, and the output shaft is threaded through in first threaded hole.
Optionally, the second end of the feed screw nut is connect with the first end of the support member, comprising:
A cylindrical protrusions are arranged in the second end of the feed screw nut；
A cylindrical shrinkage pool is arranged in the first end of the support member；
The cylindrical protrusions are plugged in the cylindrical shrinkage pool.
Optionally, the second end of the feed screw nut is connect with the first end of the support member, further includes:
Multiple second threaded holes are arranged in the second end of the feed screw nut；
Multiple third threaded holes are arranged in the first end of the support member；Second threaded hole and the third threaded hole
It corresponds；
The movement branched chain further includes multiple bolts, and the bolt and second threaded hole correspond；
The first end of the bolt is plugged in second threaded hole, and the second end of the bolt is plugged in the third
In threaded hole.
Optionally, the first extension and the second extension are provided in the second end of the support member, described first prolongs
Extending portion is provided with the first opening, and second extension is provided with the second opening；
The Hooke's hinge includes cross axle, and the cross axle is plugged in first opening and second opening, is used
In the second end that the Hooke's hinge is fixed on to the support member.
Optionally, first revolute pair, comprising: first bearing, second bearing, the first fixed lid, the second fixed lid and
Connecting component；
The cage connection of the connecting component and the driving part, the connecting component are provided with and the first bearing
Inner ring cooperation the first extension axis and first shaft shoulder, and the second extension axis for cooperating with the inner ring of the second bearing and the
Two shaft shoulders；
The outer ring of the first bearing is connect by the described first fixed lid with the pedestal, the outer ring of the second bearing
It is connect by the described second fixed lid with the pedestal.
Optionally, radial direction of the axis of the shaft of first revolute pair perpendicular to pedestal.
Optionally, the driving part is driving motor.
Minority carrier generation lifetime provided by the invention is connected movement branched chain with moving platform by Hooke's hinge, passes through
One revolute pair connects pedestal with movement branched chain, by driving part, output shaft and support member, forms the second revolute pair and rotation
Turn pair, under the premise of guaranteeing freedom degree, bigger reality is obtained while reducing the cost of minority carrier generation lifetime
Working space.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of minority carrier generation lifetime provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of movement branched chain provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another movement branched chain provided in an embodiment of the present invention；
Fig. 4 is a kind of connection schematic diagram of feed screw nut provided in an embodiment of the present invention；
Fig. 5 is a kind of connection schematic diagram of support member and Hooke's hinge provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of first revolute pair provided in an embodiment of the present invention.
Appended drawing reference:
100- minority carrier generation lifetime；
110- pedestal；
120- moving platform；
130- movement branched chain；
131- driving part；
132- support member；
133- Hooke's hinge；
The first revolute pair of 134-；
135- output shaft；
136- sliding bearing；
137- feed screw nut；
138- bolt；
The first threaded hole of 1371-；
The second threaded hole of 1372-；
1373- cylindrical protrusions；
1321- third threaded hole；
1322- cylinder shrinkage pool；
The first extension of 1323-；
The second extension of 1324-；
1331- cross axle；
1341- first bearing；
1342- second bearing；
The fixed lid of 1343- first；
The fixed lid of 1344- second；
1345- connecting component.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the attached drawing in the present invention, to this
Technical solution in invention is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention,
Instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, used term " center ", " length ", " width ", " thickness
Degree ", " top ", " bottom end ", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outside" " axis
To ", the indicating positions such as " circumferential direction " or positional relationship be to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of describing
The present invention and simplified description, rather than the position of indication or suggestion meaning or original part must have a particular orientation, with specific
Construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
It shall be understood in a broad sense, such as may be a fixed connection, may be a detachable connection, or be integrally formed；It can be mechanical connection,
It is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
Make the connection inside two elements or the interaction relationship of two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
For the sake of clarity, illustrate the definition for the specific word or phrase that the present invention uses first.
Wherein, freedom degree, can be mechanism has the number for determining the self-movement parameter that must be given when movement.
Parallel institution can be connected with fixed platform by least two independent kinematic chains for moving platform, and there are two tools
Or more than two freedom degrees, and a kind of close loop mechanism driven with parallel way.
Kinematic pair can be two components and directly contact and can generate being actively coupled for relative motion.
Revolute pair can be two components and directly contact and can be actively coupled with what a point fulcrum produced relative rotation.
Prismatic pair can be two components and directly contact and can generate being actively coupled for relative disPlacement motion.
Screw pair can be two components and directly contact and can generate being actively coupled for opposed helical movement.
Hooke's hinge can be and be made of two groups of revolute pairs, and there are two freedom degree to be actively coupled for tool.
Technical solution of the present invention is described in detail with specific embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is a kind of structural schematic diagram of minority carrier generation lifetime provided in an embodiment of the present invention, and Fig. 2 is that the present invention is real
A kind of structural schematic diagram of movement branched chain of example offer is provided；
Fig. 1 and Fig. 2 are please referred to, minority carrier generation lifetime 100 provided by the invention specifically includes:
Pedestal 110, moving platform 120 and a plurality of movement branched chain 130；
Movement branched chain 130 includes driving part 131, support member 132 and Hooke's hinge 133；
The first end of driving part is connected by the first revolute pair 134 and pedestal 110 of movement branched chain, driving part 131
Second end be provided with output shaft 135, driving part 131 drives output shaft 135, so that output shaft 135 and driving part 131
Shell sends relative rotary motion, forms the second revolute pair of movement branched chain 130, wherein the output shaft 135 is with screw thread
Lead screw；
The first end of support member 132 is connect with drive shaft 135, and support member 132 is being transported under the drive of output shaft 135
It is subjected to displacement movement on the axis direction of dynamic branch 130, and relative rotary motion occurs with the shell of the driving part 131,
The displacement movement and the relative rotary motion intercouple, so that the support member 132 forms the movement branched chain
Screw pair；
The second end of support member 132 connect 120 with moving platform by Hooke's hinge 133.
In practical applications, with no restrictions for the quantity of the movement branched chain 130 of lower-mobility parallel-connection structure 100, usually
Its quantity can be three, and three movement branched chains 130 are identical and symmetrical.One end of movement branched chain 130 passes through the first rotation
Pair 134 is connect with pedestal 110, and a rotational freedom is possessed between movement branched chain 130 and pedestal 110, can make movement branched chain
130 are rotated using the bearing of the first revolute pair 134 as fulcrum.
The other end of movement branched chain 130 is connect by Hooke's hinge 133 with moving platform 120, and Hooke's hinge 133 has two groups of revolute pairs
Composition, there are two freedom degrees for tool, can carry out selection campaign in two directions.Hooke's hinge 133 can be used high-precision bearing into
Luggage is matched, and motion range is larger, and working range is wider, can satisfy the requirement of minority carrier generation lifetime 100.
Meanwhile movement branched chain 100 further includes driving part 131, support member 132 and output shaft 135.Driving part 131,
Support member 132 and output shaft 135 collectively constitute screw pair and the second revolute lacks to compensate Hooke's hinge compared to ball pair
One degree of freedom.Specifically, driving part 131 drives output shaft 135 to rotate relative to the shell of driving part 131, the is formed
Two revolutes；Support member 132 is subjected to displacement fortune under the drive of drive shaft 135 on the axis direction of movement branched chain 130
It moves, and the shell relative to driving part 131 sends relative rotary motion, two kinds of movements intercouple, so that support member
132 form revolute.
Optionally, in practical applications, driving part 131 can be driving motor, and driving motor will be originally used for part certainly
The entirety that the minority carrier generation lifetime 100 is used as by the motor rotational freedom spent freely, reduces remaining fortune
Freedom degree to be offered needed for dynamic pair, meanwhile, by reducing the number of kinematic pair and the number of part, to reduce few freedom
Spend the cost of parallel institution.Specifically, the driving motor may include direct current generator and synchronous AC motor.
Compared with existing 3-RPS parallel institution, minority carrier generation lifetime provided in this embodiment using Hooke's hinge and
Second revolute pair replace ball pair, with screw pair replace prismatic pair, avoid ball pair bring higher cost, optional model it is less and
The less problem in real work space, reduces manufacturing cost, increases working space.Simultaneously as by the rotation of motor and
Output shaft is directly defined as kinematic pair, and reduction sees bearing number, assembly difficulty reduced, to reduce lower-mobility parallel machine
The volume of structure.
Due to having used screw pair and Hooke's hinge, and two revolute pairs are used, entire mechanism should claim from theory of mechanisms
For 3-RHRU (Revolute pair Helical pair Revolute pair Universal joint, abbreviation 3-RHRU)
Parallel institution.
Movement branched chain is connected with moving platform by Hooke's hinge, is passed through by minority carrier generation lifetime provided in this embodiment
First revolute pair connects pedestal with movement branched chain, by driving part, output shaft and support member, formed the second revolute pair and
Revolute reduces the cost of minority carrier generation lifetime under the premise of guaranteeing freedom degree, obtains bigger real work
Space.
Fig. 3 is the structural schematic diagram of another movement branched chain provided in an embodiment of the present invention.
Referring to FIG. 3, minority carrier generation lifetime 100, further includes:
Sliding bearing 136；
Sliding bearing 136 is socketed in support member 132, so that controllable coupled motions occur for the screw pair.
In practical applications, sliding bearing 136 can be the slip ring of low resistance material production, can pass through cover board and screw
It is fixed in support member 132.The sliding bearing 136 has two-freedom, for stablizing screw pair and the second revolute pair, simultaneously
The support axially and radially to support member 132 can also be improved, thus reduce the number of parts of minority carrier generation lifetime,
Improve the structural rigidity and stability of minority carrier generation lifetime 100.
Minority carrier generation lifetime 100, further includes:
Feed screw nut 137；
The first end of feed screw nut 137 is socketed on output shaft 135, the second end and support member 132 of feed screw nut 137
First end connection；
Feed screw nut 137 is used to support member 132 being fixed on output shaft 135.
The feed screw nut is also used to cooperate with the lead screw, drives the support member in the axis of the movement branched chain
It is subjected to displacement movement on direction, and sends relative rotary motion with the shell of the driving part.
In practical applications, feed screw nut 137 plays the role of fixed output shaft 135 and support member 132.Meanwhile
When minority carrier generation lifetime 100 moves, the relative motion between output shaft 135 and feed screw nut 137 may be caused, caused
The coupled motions of screw pair, in turn result in axial displacement.Therefore, make screw pair that controllable coupled motions occur, in practical applications
It also needs the rotational angle by the second revolute pair to acquire, and allows driving motor that output shaft 135 is driven to rotate towards each other same angle,
To offset the rotation of feed screw nut 137.
Fig. 4 is a kind of connection schematic diagram of feed screw nut provided in an embodiment of the present invention.
Referring to FIG. 4, optional, the first end of feed screw nut 137 is socketed on output shaft 135, comprising:
The first threaded hole 1371 is arranged in the first end of feed screw nut 137, and output shaft 135 is threaded through the first threaded hole 1371
It is interior.
In practical applications, feed screw nut 137 is an oblate cylindricality, and diameter is consistent with the diameter of support member 132,
So that feed screw nut 137 can be fitted closely with the first end of support member 132.Feed screw nut 137 is additionally provided with one
One threaded hole 1371, first threaded hole 1371 are matched with output shaft 135, so that output shaft 135 can pass through the first threaded hole
While 1371, feed screw nut 137 can be fixed on output shaft 135.
Optionally, the first end of the second end with support member 132 of feed screw nut 137 is connect, comprising:
Multiple second threaded holes 1372 and a cylindrical protrusions 1373 are arranged in the second end of feed screw nut 137；
Multiple third threaded holes 1321 and a cylindrical shrinkage pool 1322 are arranged in the first end of support member；
Circular cylindrical projection 1373, which rises, to be plugged in cylindrical shrinkage pool 1322；
Second threaded hole 1372 is corresponded with third threaded hole 1321；
Movement branched chain further includes multiple bolts 138, and bolt 138 and the second threaded hole 1372 correspond；
The first end of bolt 138 is plugged in the second threaded hole 1372, and the second end of bolt 138 is plugged in third threaded hole
In 1321.
In practical applications, the cylindrical shrinkage pool 1322 of the cylindrical protrusions 1373 Yu support member 132 of feed screw nut 137
Size coincide, cylindrical protrusions 1373 are just inserted into cylindrical shrinkage pool 1322, to allow feed screw nut 137 can
Securely to be connected with support member 132.Meanwhile the first threaded hole 1371 on feed screw nut 137 can also run through circular cylindrical projection
Play 1373.
In addition, multiple second threaded holes 1372 can be set on feed screw nut 137, and it is corresponding, in support member 132
Multiple third threaded holes 1321 can be set.Wherein, the second threaded hole 1372 is equal with the quantity of third threaded hole 1321.It is each
The second threaded hole 1372 of group and third threaded hole 1321 are both provided with a bolt 138, and one end of bolt 138 is plugged in the second spiral shell
In pit 1372, the other end is plugged in third threaded hole 1321, and feed screw nut 137 is connected firmly to support member 132
First end on.
Minority carrier generation lifetime provided in this embodiment sets lead screw under the driving of driving part for output shaft
Support member is driven to be displaced in the axis direction of movement branched chain, while the minority carrier generation lifetime will be supported by feed screw nut
Component and output shaft are closely connected and fixed, and are avoided screw pair and the second prismatic pair from sending coupled motions by sliding bearing, are increased
The structural stability of minority carrier generation lifetime.
Fig. 5 is a kind of connection schematic diagram of support member and Hooke's hinge provided in an embodiment of the present invention.
Referring to FIG. 5, the first extension 1323 and the second extension 1324 are provided in the second end of support member 132,
First extension 1323 is provided with the first opening, and the second extension 1324 is provided with the second opening；
Hooke's hinge 133 includes cross axle 1331, and cross axle 1331 is plugged in the first opening and the second opening, and being used for will be brave
The second ends that gram hinge 133 is fixed on support member 132.
In practical applications, Hooke's hinge 133 is fixed on the first extension 1323 of support member 132 by cross axle 1331
On the second extension 1324, the bearing of Hooke's hinge 133 is connect with moving platform 120, so that there are two freely for the tool of Hooke's hinge 133
Degree, while cooperating the second revolute pair and screw pair, the ball pair in original minority carrier generation lifetime is substituted, to reduce less certainly
By the cost of degree parallel institution, the theoretical work space of minority carrier generation lifetime is improved.
Fig. 6 is a kind of structural schematic diagram of first revolute pair provided in an embodiment of the present invention.
Fig. 6 is please referred to, first revolute pair 134, comprising:
The fixed lid 1344 of the fixed lid 1343, second of first bearing 1341, second bearing 1342, first and connecting component
1345；
The cage connection of connecting component 1345 and driving part 131, connecting component 1345 are provided with and first bearing 1341
Inner ring cooperation the first extension axis and first shaft shoulder, and the second extension axis for cooperating with the inner ring of second bearing 1342 and the
Two shaft shoulders；
The outer ring of first bearing 1341 is connect by the first fixed lid 1343 with pedestal 100, the outer ring of second bearing 1342
It is connect by the second fixed lid 1344 with pedestal 100.
Optionally, radial direction of the axis of the shaft of the first revolute pair 134 perpendicular to pedestal 100.
In practical applications, the first revolute pair 134 is connected by first bearing 1341 and second bearing 1342 and pedestal 200
It connects, to allow to first bearing 1341 and second bearing 1342 be that fulcrum is rotated, so that lower-mobility is in parallel
Mechanism obtains one degree of freedom.
Movement branched chain is connected with moving platform by Hooke's hinge, is passed through by minority carrier generation lifetime provided in this embodiment
First revolute pair connects pedestal with movement branched chain, under the premise of guaranteeing freedom degree, reduces minority carrier generation lifetime
Cost obtains bigger real work space.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of minority carrier generation lifetime, including pedestal, moving platform and a plurality of movement branched chain, which is characterized in that the movement
Branch includes: driving part, support member, screw pair and Hooke's hinge；
The first end of the driving part is connected by the first revolute pair of the movement branched chain with the pedestal, the driving portion
The second end of part is provided with output shaft, and the driving part drives the output shaft, so that the output shaft and the driving portion
The shell of part sends relative rotary motion, forms the second revolute pair of the movement branched chain；Wherein, the output shaft is with spiral shell
The lead screw of line；
The first end of the support member and the driving axis connection, the support member is under the drive of the output shaft in institute
It states and is subjected to displacement movement on the axis direction of movement branched chain, and relative rotary motion, institute occurs with the shell of the driving part
Rheme shifting movement and the rotary motion intercouple, so that the support member forms the screw pair of the movement branched chain；
The second end of the support member is connect by the Hooke's hinge with the moving platform.
2. minority carrier generation lifetime according to claim 1, which is characterized in that further include: sliding bearing；
The sliding bearing socket is in the support member, so that controllable coupled motions occur for the screw pair.
3. minority carrier generation lifetime according to claim 1, which is characterized in that further include: feed screw nut；
The first end of the feed screw nut is socketed on the output shaft, the second end of the feed screw nut and the support member
First end connection；
The feed screw nut is used to the support member being fixed on the output shaft；
The feed screw nut is also used to cooperate with the lead screw, drives the support member in the axis direction of the movement branched chain
On be subjected to displacement movement, and relative rotary motion occurs with the shell of the driving part.
4. minority carrier generation lifetime according to claim 3, which is characterized in that the first end of the feed screw nut is socketed
On the output shaft, comprising:
The first threaded hole is arranged in the first end of the feed screw nut, and the output shaft is threaded through in first threaded hole.
5. minority carrier generation lifetime according to claim 4, which is characterized in that the second end of the feed screw nut and institute
State the first end connection of support member, comprising:
A cylindrical protrusions are arranged in the second end of the feed screw nut；
A cylindrical shrinkage pool is arranged in the first end of the support member；
The cylindrical protrusions are plugged in the cylindrical shrinkage pool.
6. minority carrier generation lifetime according to claim 4, which is characterized in that the second end of the feed screw nut and institute
State the first end connection of support member, further includes:
Multiple second threaded holes are arranged in the second end of the feed screw nut；
Multiple third threaded holes are arranged in the first end of the support member；
Second threaded hole and the third threaded hole correspond；
The movement branched chain further includes multiple bolts, and the bolt and second threaded hole correspond；
The first end of the bolt is plugged in second threaded hole, and the second end of the bolt is plugged in the third screw thread
In hole.
7. minority carrier generation lifetime according to claim 1, which is characterized in that set in the second end of the support member
It is equipped with the first extension and the second extension, first extension is provided with the first opening, and second extension is provided with
Second opening；
The Hooke's hinge includes cross axle, and the cross axle is plugged in first opening and second opening, and being used for will
The Hooke's hinge is fixed on the second end of the support member.
8. minority carrier generation lifetime according to claim 1, which is characterized in that first revolute pair, comprising: first
Bearing, second bearing, the first fixed lid, the second fixed lid and connecting component；
The cage connection of the connecting component and the driving part, the connecting component be provided with in the first bearing
Enclose the first extension axis and first shaft shoulder of cooperation, and the second extension axis and the second axis with the inner ring cooperation of the second bearing
Shoulder；
The outer ring of the first bearing is connect by the described first fixed lid with the pedestal, and the outer ring of the second bearing passes through
Described second fixed lid is connect with the pedestal.
9. -8 any minority carrier generation lifetime according to claim 1, which is characterized in that first revolute pair turns
Radial direction of the axis of axis perpendicular to pedestal.
10. -8 any minority carrier generation lifetime according to claim 1, which is characterized in that the driving part is to drive
Dynamic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375351.5A CN109605328A (en) | 2018-11-19 | 2018-11-19 | Minority carrier generation lifetime |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811375351.5A CN109605328A (en) | 2018-11-19 | 2018-11-19 | Minority carrier generation lifetime |
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| CN109605328A true CN109605328A (en) | 2019-04-12 |
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ID=66003270
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| CN201811375351.5A Pending CN109605328A (en) | 2018-11-19 | 2018-11-19 | Minority carrier generation lifetime |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202785A (en) * | 2019-05-06 | 2019-09-06 | 浙江大学 | A kind of 3D printing device and hybrid mechanism carrying apparatus |
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| CN110202785B (en) * | 2019-05-06 | 2020-11-03 | 浙江大学 | 3D printing device and series-parallel mechanism carry thing device |
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Application publication date: 20190412 |