CN203942388U - A kind of motor direct-drive actuator - Google Patents
A kind of motor direct-drive actuator Download PDFInfo
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- CN203942388U CN203942388U CN201320824774.7U CN201320824774U CN203942388U CN 203942388 U CN203942388 U CN 203942388U CN 201320824774 U CN201320824774 U CN 201320824774U CN 203942388 U CN203942388 U CN 203942388U
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Abstract
The utility model belongs to actuator designing technique, relates to driving load to do the improvement of straight-line displacement campaign actuator.It is characterized in that: it is comprised of housing, driving mechanism, brushless resolver, ball screw assembly, and LVDT; Housing is comprised of rear end cap (1), driving mechanism shell (2), front end housing (3), rear end cap screw (4) and front end housing screw (5).The utility model proposes a kind of improved motor direct-drive actuator, reduced the volume and weight of motor drive ram, improved motor drive efficiency.
Description
Technical field
The utility model belongs to actuator designing technique, relates to driving load to do the improvement of straight-line displacement campaign actuator.
Background technology
Actuator all adopts hydraulic system to drive conventionally, because hydraulic unit driver has the defect of leakage of oil, along with the development of high power device, can carry out drive ram by high-power brushless DC motor, also by hydraulic-driven, is changed into by motor driven.The output shaft of motor rotation is converted into rectilinear motion, the conventional mode of this structure is that motor output shaft is processed into gear and coordinates with turbine and worm, drives turbine and worm moving linearly when motor output shaft rotates.The defect of this structure is that transmission efficiency is lower, needs two bodies, and structure is compact not.
Summary of the invention
The purpose of this utility model is: propose a kind of improved motor direct-drive actuator, the volume and weight driving to reduce Motor actuator, improves motor drive efficiency.
The technical solution of the utility model is: a kind of motor direct-drive actuator, is characterized in that: it is comprised of housing, driving mechanism, brushless resolver, ball screw assembly, and LVDT; Housing is comprised of rear end cap 1, driving mechanism shell 2, front end housing 3, rear end cap screw 4 and front end housing screw 5; Rear end cap 1 is a plectane, on the right surface of rear end cap 1, have near the position of circumference the annular stopper 1a that a cross section is rectangle, in the inside of annular stopper 1a, there is a two-stage step blind hole, the aperture of the right sector hole 1b of this two-stage step blind hole is maximum, the aperture of middle sector hole 1c is less than the aperture of right sector hole 1b, left sector hole 1d aperture is less than the aperture of middle sector hole 1c, the transducer screw via hole 1e that has at least 2 perforations that are uniformly distributed along the circumference at the bottom of the hole of left sector hole 1d, at the bottom of the hole of left sector hole 1d, there is the transducer lead-out wire hole 1f of a perforation center; Driving mechanism shell 2 is cylinders, left port at driving mechanism shell 2 has left flange 2a, right output port at driving mechanism shell 2 has right flange 2b, on left flange 2a and right flange 2b, there is the screwed hole being uniformly distributed along the circumference, on the external cylindrical surface of driving mechanism shell 2, there is a brushless motor stator assembly lead-out wire hole 2c who connects driving mechanism shell 2 sidewalls, the endoporus of driving mechanism shell 2 is stepped holes, the aperture of the left sector hole 2d of this stepped hole is greater than the aperture of right sector hole 2e, and brushless motor stator assembly 9 lead-out wire hole 2c and left sector hole 2d are communicated with;
Front end housing 3 is plectanes, on the left surface of front end housing 3, have near the position of circumference the annular stopper 3b that a cross section is rectangle, in the inside of annular stopper 3b, there is a two-stage step blind hole, left sector hole 3e is maximum, the aperture of middle sector hole 3f is greater than the aperture of right sector hole 3g, at the bottom of the hole of right sector hole 3g, there is a ball-screw via hole 3h who runs through, on the external cylindrical surface of front end housing 3, have 2 brushless resolver stator module output lead-out wire hole 3c and the excitatory lead-out wire of brushless resolver stator module hole 3d that connect front end housing 3 sidewalls;
The annular stopper 1a of rear end cap 1 inserts in the left port of driving mechanism shell 2 and keeps matched in clearance, on the left surface of rear end cap 1, near circumference place, there is the rear end cap screw via hole being uniformly distributed along the circumference, the quantity of the quantity of rear end cap screw via hole and screwed hole on the left flange 2a of driving mechanism shell 2 is identical and position is corresponding, by rear end cap screw 4, rear end cap 1 and the left flange 2a of driving mechanism shell 2 is connected to integral body; The annular stopper 3b of front end housing 3 inserts in the right output port 2e of driving mechanism shell 2 and keeps matched in clearance, on the right surface of front end housing 3, near circumference place, there is the front end housing screw via hole being uniformly distributed along the circumference, the quantity of the quantity of front end housing screw via hole and screwed hole on the right flange 2b of driving mechanism shell 2 is identical and position is corresponding, by front end housing screw 5, front end housing 3 and the right flange 2b of driving mechanism shell 2 is connected to integral body;
Driving mechanism is comprised of bearing 6, bearing 7, hollow shaft 8, brushless motor stator assembly 9, brushless electric motor rotor assembly 10.Hollow shaft 8 endoporus have two-stage step, the aperture of left sector hole 8f is minimum, the aperture of middle sector hole 8g is greater than the aperture of left sector hole 8f, the right-hand member of middle sector hole 8g has a keyway 8h, right sector hole is a screwed hole 8k, hollow shaft 8 cylindrical left ends and right-hand member respectively have two-stage step, the external diameter of the left end left side cylindrical 8a of left end step is less than left end right side cylindrical 8b, the external diameter of the right-hand member right side cylindrical 8e of right-hand member step is less than right-hand member left side cylindrical 8d, and brushless motor stator assembly 9 and brushless electric motor rotor assembly 10 are all that cross section is the annular of rectangle; Hollow shaft 8 endoporus 8f provide the space of ball-screw 13 moving linearlies, the locus that LVDT18 is installed is also provided, hollow shaft 8 endoporus 8g install ball nut 16 and keep interference fit, the right-hand member keyway 8h place of hollow shaft 8 endoporus 8g install one fixedly ball nut 16 and hollow shaft 8 key 15 and keep interference fits, hollow shaft 8 endoporus 8k install fixedly ball nut 16 of a nut 14.The cylindrical 8a place, left end left side of hollow shaft 8 installs bearing 6 and keeps interference fit, install bearing 7 and keep interference fit at the cylindrical 8e place, right-hand member right side of hollow shaft 8, left end right side cylindrical 8b installs brushless electric motor rotor assembly 10 and keeps interference fit, and right-hand member left side cylindrical 8d installs the rotor assembly 12 of brushless resolver and keeps interference fit.Brushless motor stator assembly 9 is installed in the right sector hole 2e of driving mechanism shell 2 and keeps interference fit, and brushless motor stator assembly 9 lead-out wires are drawn by the brushless motor stator assembly lead-out wire hole 2c of driving mechanism shell 2 sidewalls;
Brushless resolver is comprised of brushless resolver stator module 11 and brushless resolver rotor assembly 12, and brushless resolver stator module 11 and brushless resolver rotor assembly 12 are all that cross section is the annular of rectangle.Brushless resolver stator module 9 is installed in the left sector hole 3e of front end housing 3 and keeps interference fit, the rotor assembly 12 of brushless resolver are installed on hollow shaft 8 right-hand member left side cylindrical 8d and keep interference fit.The hole 3c that brushless resolver stator module output lead-out wire connects front end housing 3 sidewalls from the external cylindrical surface of front end housing 3 draws, and the hole 3d that the excitatory lead-out wire of brushless resolver stator module connects front end housing 3 sidewalls from the external cylindrical surface of front end housing 3 draws;
Ball screw assembly, is comprised of ball-screw 13, nut 14, key 15, ball nut 16.Ball-screw 13 is that a sliver inside part is hollow, and right-hand member has a looping pit 13c, and endoporus has a step, and left sector hole 13d is greater than stage casing screwed hole 13e, and right sector hole 13f is minimum.Ball nut 16 is installed on ball-screw 13 and by key 15 and fixes, and nut 14 is installed on compression ball nut 16 and key 15 in hollow shaft right-hand member internal thread hole 8k;
LVDT is comprised of linear movement pick-up mover core 17 and linear movement pick-up stator module 18.Linear movement pick-up mover core right-hand member has one section of screw thread, it is installed in ball-screw 13 stage casing screwed hole 13e, linear movement pick-up stator module 18 left ends are cylindrical, cylindrical 18a is installed in the left sector hole 1d of rear end cap 1, and be fixed on front end housing 1 by screw 19, the transducer lead-out wire hole 1f that the lead-out wire of linear movement pick-up stator module 18 connects by front end housing 1 one draws.
The utility model has the advantages that: proposed a kind of improved motor direct-drive actuator, reduced the volume and weight of motor drive ram, improved motor drive efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of rear end cap 1 in the utility model.
Fig. 3 is the structural representation of driving mechanism shell 2 in the utility model.
Fig. 4 is the structural representation of front end housing 3 in the utility model.
Fig. 5 is the structural representation of the utility model hollow mandrel 8.
Fig. 6 is the structural representation of ball-screw 13 in the utility model.
Embodiment:
Below the utility model is described in further detail.Referring to Fig. 1 to Fig. 6, a kind of motor direct-drive actuator, is characterized in that: it is comprised of housing, driving mechanism, brushless resolver, ball screw assembly, and LVDT; Housing is comprised of rear end cap 1, driving mechanism shell 2, front end housing 3, rear end cap screw 4 and front end housing screw 5; Rear end cap 1 is a plectane, on the right surface of rear end cap 1, have near the position of circumference the annular stopper 1a that a cross section is rectangle, in the inside of annular stopper 1a, there is a two-stage step blind hole, the aperture of the right sector hole 1b of this two-stage step blind hole is maximum, the aperture of middle sector hole 1c is less than the aperture of right sector hole 1b, left sector hole 1d aperture is less than the aperture of middle sector hole 1c, the transducer screw via hole 1e that has at least 2 perforations that are uniformly distributed along the circumference at the bottom of the hole of left sector hole 1d, at the bottom of the hole of left sector hole 1d, there is the transducer lead-out wire hole 1f of a perforation center; Driving mechanism shell 2 is cylinders, left port at driving mechanism shell 2 has left flange 2a, right output port at driving mechanism shell 2 has right flange 2b, on left flange 2a and right flange 2b, there is the screwed hole being uniformly distributed along the circumference, on the external cylindrical surface of driving mechanism shell 2, there is a brushless motor stator assembly lead-out wire hole 2c who connects driving mechanism shell 2 sidewalls, the endoporus of driving mechanism shell 2 is stepped holes, the aperture of the left sector hole 2d of this stepped hole is greater than the aperture of right sector hole 2e, and brushless motor stator assembly 9 lead-out wire hole 2c and left sector hole 2d are communicated with;
Front end housing 3 is plectanes, on the left surface of front end housing 3, have near the position of circumference the annular stopper 3b that a cross section is rectangle, in the inside of annular stopper 3b, there is a two-stage step blind hole, left sector hole 3e is maximum, the aperture of middle sector hole 3f is greater than the aperture of right sector hole 3g, at the bottom of the hole of right sector hole 3g, there is a ball-screw via hole 3h who runs through, on the external cylindrical surface of front end housing 3, have 2 brushless resolver stator module output lead-out wire hole 3c and the excitatory lead-out wire of brushless resolver stator module hole 3d that connect front end housing 3 sidewalls;
The annular stopper 1a of rear end cap 1 inserts in the left port of driving mechanism shell 2 and keeps matched in clearance, on the left surface of rear end cap 1, near circumference place, there is the rear end cap screw via hole being uniformly distributed along the circumference, the quantity of the quantity of rear end cap screw via hole and screwed hole on the left flange 2a of driving mechanism shell 2 is identical and position is corresponding, by rear end cap screw 4, rear end cap 1 and the left flange 2a of driving mechanism shell 2 is connected to integral body; The annular stopper 3b of front end housing 3 inserts in the right output port 2e of driving mechanism shell 2 and keeps matched in clearance, on the right surface of front end housing 3, near circumference place, there is the front end housing screw via hole being uniformly distributed along the circumference, the quantity of the quantity of front end housing screw via hole and screwed hole on the right flange 2b of driving mechanism shell 2 is identical and position is corresponding, by front end housing screw 5, front end housing 3 and the right flange 2b of driving mechanism shell 2 is connected to integral body;
Driving mechanism is comprised of bearing 6, bearing 7, hollow shaft 8, brushless motor stator assembly 9, brushless electric motor rotor assembly 10.Hollow shaft 8 endoporus have two-stage step, the aperture of left sector hole 8f is minimum, the aperture of middle sector hole 8g is greater than the aperture of left sector hole 8f, the right-hand member of middle sector hole 8g has a keyway 8h, right sector hole is a screwed hole 8k, hollow shaft 8 cylindrical left ends and right-hand member respectively have two-stage step, the external diameter of the left end left side cylindrical 8a of left end step is less than left end right side cylindrical 8b, the external diameter of the right-hand member right side cylindrical 8e of right-hand member step is less than right-hand member left side cylindrical 8d, and brushless motor stator assembly 9 and brushless electric motor rotor assembly 10 are all that cross section is the annular of rectangle; Hollow shaft 8 endoporus 8f provide the space of ball-screw 13 moving linearlies, the locus that LVDT18 is installed is also provided, hollow shaft 8 endoporus 8g install ball nut 16 and keep interference fit, the right-hand member keyway 8h place of hollow shaft 8 endoporus 8g install one fixedly ball nut 16 and hollow shaft 8 key 15 and keep interference fits, hollow shaft 8 endoporus 8k install fixedly ball nut 16 of a nut 14.The cylindrical 8a place, left end left side of hollow shaft 8 installs bearing 6 and keeps interference fit, install bearing 7 and keep interference fit at the cylindrical 8e place, right-hand member right side of hollow shaft 8, left end right side cylindrical 8b installs brushless electric motor rotor assembly 10 and keeps interference fit, and right-hand member left side cylindrical 8d installs the rotor assembly 12 of brushless resolver and keeps interference fit.Brushless motor stator assembly 9 is installed in the right sector hole 2e of driving mechanism shell 2 and keeps interference fit, and brushless motor stator assembly 9 lead-out wires are drawn by the brushless motor stator assembly lead-out wire hole 2c of driving mechanism shell 2 sidewalls;
Brushless resolver is comprised of brushless resolver stator module 11 and brushless resolver rotor assembly 12, and brushless resolver stator module 11 and brushless resolver rotor assembly 12 are all that cross section is the annular of rectangle.Brushless resolver stator module 9 is installed in the left sector hole 3e of front end housing 3 and keeps interference fit, the rotor assembly 12 of brushless resolver are installed on hollow shaft 8 right-hand member left side cylindrical 8d and keep interference fit.The hole 3c that brushless resolver stator module output lead-out wire connects front end housing 3 sidewalls from the external cylindrical surface of front end housing 3 draws, and the hole 3d that the excitatory lead-out wire of brushless resolver stator module connects front end housing 3 sidewalls from the external cylindrical surface of front end housing 3 draws;
Ball screw assembly, is comprised of ball-screw 13, nut 14, key 15, ball nut 16.Ball-screw 13 is that a sliver inside part is hollow, and right-hand member has a looping pit 13c, and endoporus has a step, and left sector hole 13d is greater than stage casing screwed hole 13e, and right sector hole 13f is minimum.Ball nut 16 is installed on ball-screw 13 and by key 15 and fixes, and nut 14 is installed on compression ball nut 16 and key 15 in hollow shaft right-hand member internal thread hole 8k;
LVDT is comprised of linear movement pick-up mover core 17 and linear movement pick-up stator module 18.Linear movement pick-up mover core right-hand member has one section of screw thread, it is installed in ball-screw 13 stage casing screwed hole 13e, linear movement pick-up stator module 18 left ends are cylindrical, cylindrical 18a is installed in the left sector hole 1d of rear end cap 1, and be fixed on front end housing 1 by screw 19, the transducer lead-out wire hole 1f that the lead-out wire of linear movement pick-up stator module 18 connects by front end housing 1 one draws.
Operation principle of the present utility model is: rotor hollow shaft 8, in-built ball-screw 13, the in-built linear movement pick-up of ball-screw.In ball-screw, there is screwed hole, be used for fixing the mover core 17 of RVDT linear movement pick-up.The ball nut 15 use keys of ball screw assembly, are fixed in motor-hollow axle 8.When rotor 10 rotation, the ball nut 16 of ball screw assembly, rotates simultaneously, ball nut 16 drives ball-screw 13 to carry out rectilinear motion, the size of its displacement is measured by RVDT linear movement pick-up, the signal of telecommunication that linear movement pick-up is measured, after the processing of controller, is controlled the operation of motor.This structural advantages is that system one-tenth is highly integrated, and volume is little, lightweight, and transmission efficiency is high.
Claims (1)
1. a motor direct-drive actuator, is characterized in that: it is comprised of housing, driving mechanism, brushless resolver, ball screw assembly, and LVDT, housing is comprised of rear end cap (1), driving mechanism shell (2), front end housing (3), rear end cap screw (4) and front end housing screw (5), rear end cap (1) is a plectane, on the right surface of rear end cap (1), there is the annular stopper that a cross section is rectangle (1a) position near circumference, in the inside of annular stopper (1a), there is a two-stage step blind hole, the aperture of the right sector hole (1b) of this two-stage step blind hole is maximum, the aperture of middle sector hole (1c) is less than the aperture of right sector hole (1b), left sector hole (1d) aperture is less than the aperture of middle sector hole (1c), the transducer screw via hole (1e) that has at least 2 perforations that are uniformly distributed along the circumference at the bottom of the hole of left sector hole (1d), at the bottom of the hole of left sector hole (1d), there is the transducer lead-out wire hole (1f) of a perforation center, driving mechanism shell (2) is a cylinder, left port at driving mechanism shell (2) has left flange (2a), right output port at driving mechanism shell (2) has right flange (2b), on left flange (2a) and right flange (2b), there is the screwed hole being uniformly distributed along the circumference, on the external cylindrical surface of driving mechanism shell (2), there is a brushless motor stator assembly lead-out wire hole (2c) that connects driving mechanism shell (2) sidewall, the endoporus of driving mechanism shell (2) is stepped hole, the aperture of the left sector hole of this stepped hole (2d) is greater than the aperture of right sector hole (2e), brushless motor stator assembly (9) lead-out wire hole (2c) and left sector hole (2d) are communicated with,
Front end housing (3) is a plectane, on the left surface of front end housing (3), there is the annular stopper that a cross section is rectangle (3b) position near circumference, in the inside of annular stopper (3b), there is a two-stage step blind hole, left sector hole (3e) maximum, the aperture of middle sector hole (3f) is greater than the aperture of right sector hole (3g), at the bottom of the hole of right sector hole (3g), there is a ball-screw via hole (3h) running through, on the external cylindrical surface of front end housing (3), there are 2 brushless resolver stator module output lead-out wire hole (3c) and the excitatory lead-out wire of brushless resolver stator module holes (3d) that connect front end housing (3) sidewall,
The annular stopper (1a) of rear end cap (1) inserts in the left port of driving mechanism shell (2) and keeps matched in clearance, on the left surface of rear end cap (1), near circumference place, there is the rear end cap screw via hole being uniformly distributed along the circumference, the quantity of the quantity of rear end cap screw via hole and screwed hole on the left flange of driving mechanism shell (2) (2a) is identical and position is corresponding, by rear end cap screw (4), rear end cap (1) and the left flange of driving mechanism shell (2) (2a) is connected to integral body; The annular stopper (3b) of front end housing (3) inserts in the right output port (2e) of driving mechanism shell (2) and keeps matched in clearance, on the right surface of front end housing (3), near circumference place, there is the front end housing screw via hole being uniformly distributed along the circumference, the quantity of the quantity of front end housing screw via hole and screwed hole on the right flange of driving mechanism shell (2) (2b) is identical and position is corresponding, by front end housing screw (5), front end housing (3) and the right flange of driving mechanism shell (2) (2b) is connected to integral body;
Driving mechanism is by bearing (6), bearing (7), hollow shaft (8), brushless motor stator assembly (9), brushless electric motor rotor assembly (10) forms, hollow shaft (8) endoporus has two-stage step, the aperture of left sector hole (8f) is minimum, the aperture of middle sector hole (8g) is greater than the aperture of left sector hole (8f), the right-hand member of middle sector hole (8g) has a keyway (8h), right sector hole is a screwed hole (8k), hollow shaft (8) cylindrical left end and right-hand member respectively have two-stage step, the external diameter of the left end left side cylindrical (8a) of left end step is less than left end right side cylindrical (8b), the external diameter of the right-hand member right side cylindrical (8e) of right-hand member step is less than right-hand member left side cylindrical (8d), brushless motor stator assembly (9) and brushless electric motor rotor assembly (10) are all that cross section is the annular of rectangle, hollow shaft (8) endoporus (8f) provides the space of ball-screw (13) moving linearly, the locus of installation LVDT (18) is also provided, hollow shaft (8) endoporus (8g) is installed ball nut (16) and is kept interference fit, the right-hand member keyway (8h) of hollow shaft (8) endoporus (8g) locate to install one fixedly ball nut (16) and hollow shaft (8) key (15) and keep interference fits, hollow shaft (8) endoporus (8k) is installed fixedly ball nut (16) of a nut (14), the left end left side cylindrical (8a) of hollow shaft (8) is located to install bearing (6) and keeps interference fit, right-hand member right side cylindrical (8e) of hollow shaft (8) is located to install bearing (7) and keeps interference fit, left end right side cylindrical (8b) is installed brushless electric motor rotor assembly (10) and is kept interference fit, right-hand member left side cylindrical (8d) is installed the rotor assembly (12) of brushless resolver and is kept interference fit, brushless motor stator assembly (9) is installed in the right sector hole of driving mechanism shell (2) (2e) and keeps interference fit, brushless motor stator assembly (9) lead-out wire is drawn by the brushless motor stator assembly lead-out wire hole (2c) of driving mechanism shell (2) sidewall,
Brushless resolver is comprised of brushless resolver stator module (11) and brushless resolver rotor assembly (12), brushless resolver stator module (11) and brushless resolver rotor assembly (12) are all that cross section is the annular of rectangle, brushless resolver stator module (9) is installed in the left sector hole of front end housing (3) (3e) and keeps interference fit, the rotor assembly of brushless resolver (12) is installed on hollow shaft (8) right-hand member left side cylindrical (8d) and keeps interference fit, draw in the hole (3c) that brushless resolver stator module output lead-out wire connects front end housing (3) sidewall from the external cylindrical surface of front end housing (3), draw in the hole (3d) that the excitatory lead-out wire of brushless resolver stator module connects front end housing (3) sidewall from the external cylindrical surface of front end housing (3),
Ball screw assembly, is comprised of ball-screw (13), nut (14), key (15), ball nut (16), ball-screw (13) is that a sliver inside part is hollow, right-hand member has a looping pit (13c), endoporus has a step, left sector hole (13d) is greater than stage casing screwed hole (13e), right sector hole (13f) minimum, ball nut (16) is installed on ball-screw (13) and goes up and pass through key (15) and fix, and nut (14) is installed on compression ball nut (16) and key (15) in hollow shaft right-hand member internal thread hole (8k);
LVDT is comprised of linear movement pick-up mover core (17) and linear movement pick-up stator module (18), linear movement pick-up mover core right-hand member has one section of screw thread, it is installed in ball-screw (13) stage casing screwed hole (13e), linear movement pick-up stator module (18) left end is cylindrical, cylindrical (18a) is installed in the left sector hole (1d) of rear end cap (1), and it is upper to be fixed on front end housing (1) by screw (19), draw in the transducer lead-out wire hole (1f) that the lead-out wire of linear movement pick-up stator module (18) connects by front end housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824774.7U CN203942388U (en) | 2013-12-12 | 2013-12-12 | A kind of motor direct-drive actuator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824774.7U CN203942388U (en) | 2013-12-12 | 2013-12-12 | A kind of motor direct-drive actuator |
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| CN203942388U true CN203942388U (en) | 2014-11-12 |
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| CN201320824774.7U Expired - Fee Related CN203942388U (en) | 2013-12-12 | 2013-12-12 | A kind of motor direct-drive actuator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258943A (en) * | 2015-10-14 | 2016-01-20 | 北京曙光航空电气有限责任公司 | Load test stand of linear actuator |
| CN105466323A (en) * | 2015-12-09 | 2016-04-06 | 北京星空建腾电子科技有限公司 | A stator assembly of a multi-redundancy lineal displacement sensor |
| CN108883461A (en) * | 2016-03-18 | 2018-11-23 | 贝尔特马席能宝公司 | For by the outer device for being applied to connecting element |
| CN112117863A (en) * | 2020-08-14 | 2020-12-22 | 西安交通大学 | Mechanical-jamming-free high-thrust-density direct-drive type electric actuator |
-
2013
- 2013-12-12 CN CN201320824774.7U patent/CN203942388U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258943A (en) * | 2015-10-14 | 2016-01-20 | 北京曙光航空电气有限责任公司 | Load test stand of linear actuator |
| CN105466323A (en) * | 2015-12-09 | 2016-04-06 | 北京星空建腾电子科技有限公司 | A stator assembly of a multi-redundancy lineal displacement sensor |
| CN108883461A (en) * | 2016-03-18 | 2018-11-23 | 贝尔特马席能宝公司 | For by the outer device for being applied to connecting element |
| CN112117863A (en) * | 2020-08-14 | 2020-12-22 | 西安交通大学 | Mechanical-jamming-free high-thrust-density direct-drive type electric actuator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20181212 |