CN209705128U - Brake and electric actuator - Google Patents
Brake and electric actuator Download PDFInfo
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- CN209705128U CN209705128U CN201920210800.4U CN201920210800U CN209705128U CN 209705128 U CN209705128 U CN 209705128U CN 201920210800 U CN201920210800 U CN 201920210800U CN 209705128 U CN209705128 U CN 209705128U
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Abstract
This application discloses a kind of brake and electric actuators.The brake includes: driving mechanism, planetary gear transmission mechanism, output gear and output shaft；Output gear is fixed on output shaft, the first end of planetary gear transmission mechanism is connect with driving mechanism, the second end of planetary gear transmission mechanism is connect with output gear, so that the first end of driving mechanism driving planetary gear transmission mechanism, the second end of planetary gear transmission mechanism is set to drive output gear around the axial-rotation of output shaft, to drive output shaft to rotate.The application has achieved the purpose that effectively reduce solid stop volume, so that realizing makes the overall compact technical effect of the overall structure of the brake.
Description
Technical field
This application involves mechanical equipment technical fields, in particular to a kind of brake and electric actuator.
Background technique
Electric actuator mostly uses motor and controls for power source the movement of product.In automobile-used electric actuator field,
Due to the particularity of its application environment, the arrangement space of electric actuator entirety is limited, along with the influence of operating ambient temperature,
Exacerbate the requirement of actuator space layout.
Actuator generallys use motor-driven gear transmission mechanism, and gear shaft parallel arrangement will cause length direction in this way
On size it is larger, be not able to satisfy the requirement of miniaturized structure.
Motor drives series of gears and reaches with can finally driving the sector gear being connected with exporting axis purpose, fan-shaped
Gear passes through the connecting rod and the external output torque of output pin of consolidation and movement.
In the case where the compactedness of the structure of engine requires higher and higher, it is necessary to minimize each components
Volume, to meet the running stability requirement of engine compactedness sum.
Aiming at the problems existing in the prior art, currently no effective solution has been proposed.
Utility model content
The main purpose of the application is to provide a kind of brake that arragement construction is compact and electric actuator, existing to solve
There is the problem that volume existing for brake is larger in technology.
To achieve the goals above, according to a first aspect of the present application, this application provides a kind of brakes.
Brake according to the application includes: driving mechanism, planetary gear transmission mechanism, output gear and output shaft；
Output gear is fixed on output shaft, and the first end of planetary gear transmission mechanism is connect with driving mechanism, and planetary gear passes
The second end of motivation structure is connect with output gear, so that the first end of driving mechanism driving planetary gear transmission mechanism, makes planetary gear
The second end of transmission mechanism drives output gear around the axial-rotation of output shaft, to drive output shaft to rotate.
Optionally, planetary gear transmission mechanism includes: ring gear, planet carrier, intermediate gear, at least three planetary gears and extremely
Few three the first pin shafts；
Corresponding first pin shaft of each planetary gear, each planetary gear are sleeved on corresponding first pin shaft, and first
One end of pin shaft is connected on planet carrier, and each planetary gear is respectively positioned in ring gear, and each planetary gear is nibbled with ring gear
It closes；
Intermediate gear is connected to planet carrier, and intermediate gear is engaged with output gear, and driving mechanism connects respectively at planetary gear
It connects, so that driving mechanism drives the same direction of rotation rotation of each planetary gear, planetary gear drives planet carrier with respect to ring gear
Rotation, rotates intermediate gear with planet carrier, and intermediate gear is driven output gear around the axial-rotation of output shaft.
Optionally, driving mechanism includes: motor and the motor gear that is fixed on motor output shaft, and each planetary gear is equal
It is engaged with motor gear.
Optionally, the planetary gear that at least three planetary gears include is evenly distributed on around motor gear.
Optionally, each planetary gear includes first gear and the second gear that is arranged in below first gear, and first
The diameter of gear is less than the diameter of second gear, and first gear and the coaxial setting of second gear；Each planetary gear includes
First gear is engaged with ring gear, and the second gear that each planetary gear includes is engaged with motor gear.
Optionally, which further includes shell and the second pin shaft；
Driving mechanism, planetary gear transmission mechanism and output gear are respectively positioned on the inside of shell, and the first end of output shaft is hinged
In the inside of shell, the second end of output shaft extends shell, and motor and ring gear are fixed with shell；
Second pin shaft first end connects inside housings, and the second end of the second pin shaft is connected to the middle part of planet carrier, intermediate
Gear set is on the second pin shaft.
Optionally, which further includes induction pieces, output pin, rocker arm and the position sensing for detecting induction pieces position
Device；
Output gear is sector gear；Rocker arm and output pin are respectively positioned on outside shell, and the of the first end of rocker arm and output shaft
The connection of two ends, the second end and output pin connection of rocker arm；Induction pieces are fixed on sector gear, and induction pieces are located remotely from sector
The side of gear tooth；Position sensor is immobilized in the shell portion, and position sensor is located at the side of sector gear, and induction pieces
The gear teeth relative to sector gear are close to position sensor；Position between sector gear and rocker arm is relatively fixed.
Optionally, driving mechanism includes sun gear, motor and the motor gear being fixed on motor output shaft；
Sun gear includes third gear and the 4th gear that is arranged in below third gear, and the diameter of third gear is less than the
The diameter of four gears, and third gear and the 4th coaxial setting of gear；Each planetary gear is engaged with third gear, the 4th tooth
Wheel is engaged with motor gear.
Optionally, the planetary gear that at least three planetary gears include is evenly distributed on around third gear.
Second aspect, present invention also provides a kind of electric actuator, which includes above-mentioned brake.
In the embodiment of the present application, using a kind of brake that arragement construction is compact, output shaft is fixed on by output gear
On, the first end of planetary gear transmission mechanism is connect with driving mechanism, and the second end of planetary gear transmission mechanism is connect with output gear,
So that the first end of driving mechanism driving planetary gear transmission mechanism, makes the second end of planetary gear transmission mechanism drive output gear torus
Around the axial-rotation of output shaft, to drive output shaft to rotate.In this way, the application, which has reached, effectively reduces solid stop volume
Purpose, so that realizing makes the overall compact technical effect of the overall structure of this brake.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is according to a kind of partial sectional view of the brake of embodiment of the application；
Fig. 2 is the planetary gear distribution schematic diagram according to a kind of embodiment of the application；
Fig. 3 is according to a kind of schematic diagram of internal structure of the brake of embodiment of the application；
Fig. 4 is the schematic diagram of internal structure according to the brake of the application another kind embodiment；
Fig. 5 is the assembling structure schematic diagram according to the planetary gear transmission mechanism of the application another kind embodiment；
Fig. 6 is the structural schematic diagram of the motor and waveform spring according to a kind of embodiment of the application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outside",
" in ", "vertical", "horizontal", " transverse direction ", the orientation or positional relationship of the instructions such as " longitudinal direction " be orientation based on the figure or
Positional relationship.These terms are not intended to limit indicated dress primarily to better describe the application and embodiment
Set, element or component must have particular orientation, or constructed and operated with particular orientation.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " installation ", " setting ", " being equipped with ", " connection ", " engagement ", " fixation " shall be understood in a broad sense.For example,
" connection " may be a fixed connection, and be detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be straight
It connects connected, or indirectly connected through an intermediary, or is two companies internal between device, element or component
It is logical.For those of ordinary skills, can understand as the case may be above-mentioned term in this application specifically contain
Justice.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment 1
As shown in Figures 1 to 6, this application discloses a kind of brake, which includes: driving mechanism, planetary gear biography
Motivation structure, output gear 3 and output shaft 4；
Output gear 3 is fixed on output shaft 4, and the first end of planetary gear transmission mechanism is connect with driving mechanism, planetary gear
The second end of transmission mechanism is connect with output gear 3, so that the first end of driving mechanism driving planetary gear transmission mechanism, makes planet
The second end of wheel drive mechanism drives output gear 3 around the axial-rotation of output shaft 4, to drive output shaft 4 to rotate.
Specifically, brake provided in this embodiment is fixed on output shaft 4 by output gear 3, planet gear transmission machine
The first end of structure is connect with driving mechanism, and the second end of planetary gear transmission mechanism is connect with output gear 3, so that driving mechanism is driven
The first end of dynamic planetary gear transmission mechanism makes the second end of planetary gear transmission mechanism drive output gear 3 around the axis of output shaft 4
To rotation, to drive output shaft 4 to rotate.In this way, conducting driving mechanism output to output gear 3 by planetary gear transmission mechanism
Power can effectively reduce brake transverse width compared with the prior art, and then effectively reduce whole volume, and using row
Star wheels transport mechanism can make gear degree of engagement increase, convenient for being conducive to export bigger torque, and meanwhile it is gear-driven flat
Stability is more preferable.
As shown in Figures 1 to 5, in a feasible embodiment, planetary gear transmission mechanism includes: ring gear 21, row
Carrier 22, intermediate gear 23, at least three planetary gears 24 and at least three first pin shafts 25；Each planetary gear 24 corresponding one
A first pin shaft 25, each planetary gear 24 are sleeved on corresponding first pin shaft 25, and one end connection of the first pin shaft 25 is expert at
In carrier 22, each planetary gear 24 is respectively positioned in ring gear 21, and each planetary gear 24 is engaged with ring gear 21；Center tooth
Wheel 23 is connected to planet carrier 22, and intermediate gear 23 is engaged with output gear 3, and driving mechanism is connected respectively at planetary gear 24, with
Make driving mechanism driving each planetary gear 24 same direction of rotation rotation, planetary gear 24 drives planet carrier 22 with respect to ring gear
21 rotations, rotate intermediate gear 23 with planet carrier 22, and intermediate gear 23 is driven axial rotation of the output gear 3 around output shaft 4
Turn.
Wherein, it can be three that quantity, which is arranged, in planetary gear 24.
Specifically, the planetary gear transmission mechanism is under driving mechanism driving, and to 3 output power of output gear, process is as follows:
Driving mechanism drives each planetary gear 24 to rotate along corresponding first pin shaft 25, since ring gear 21 is fixed, In
Planetary gear 24 and ring gear 21 are under meshing state, and each planetary gear 24 is moved along ring gear 21, to drive planet
Frame 22 rotates, and planet carrier 22 and intermediate gear 23 are fixed, so that intermediate gear 23 rotates, and intermediate gear 23 and output gear 3
Engagement, and then realize that output gear 3 surround the axial-rotation of output shaft 4, and output gear 3 is fixed with 4 position of output shaft, output
The rotation of gear 3 drives output shaft 4 to rotate together with, and output shaft 4 is allowed to drive other products (for example, other products are valve
Etc controlled terminal).
As shown in Figure 1 to Figure 3, in a feasible embodiment, driving mechanism includes: motor 11 and is fixed on motor
Motor gear 12 on output shaft, each planetary gear 24 are engaged with motor gear 12.
Specifically, motor 11 is rotated by the motor gear 12 that motor output shaft driving is fixed on motor output shaft, until
Few three planetary gears 24 are distributed in 12 surrounding of motor gear, and motor gear 12 drives the planet tooth engaged with motor gear 12
Wheel 24, to realize the power output of motor 11 to planetary gear transmission mechanism.Wherein, the structure of at least three planetary gears 24
Gear degree of engagement can be made to increase, be conducive to export bigger torque.Optionally, increase gear degree of engagement to be better and mention
Gear-driven stationarity is risen, the planetary gear 24 that at least three planetary gears 24 include is evenly distributed on motor gear 12 weeks
It encloses.
As shown in Figure 1 to Figure 3, in a feasible embodiment, each planetary gear 24 includes first gear 241
With the second gear 242 being arranged in below first gear 241, the diameter of first gear 241 is less than the diameter of second gear 242,
And first gear 241 and the coaxial setting of second gear 242；The first gear 241 and ring gear 21 that each planetary gear 24 includes
Engagement, the second gear 242 that each planetary gear 24 includes are engaged with motor gear 12.
Specifically, the diameter of first gear 241 is less than the diameter of second gear 242, in this way, motor 11 passes through motor gear
12 output power to the bigger second gear 242 of diameter, and the first gear 241 that second gear 242 drives diameter small rotates,
It realizes and exports bigger torque.Second gear 242 is engaged with ring gear 21, i.e., second gear 242 is located in ring gear 21, row
The diameter of the second gear 242 of star gear 24 is smaller, therefore, can reduce the size of ring gear 21, suitably so as to reduce
The volume of this brake.
As shown in Figures 1 to 5, in a feasible embodiment, brake as the aforementioned further includes shell 5 and second
Pin shaft 6；
Driving mechanism, planetary gear transmission mechanism and output gear 3 are respectively positioned on the inside of shell 5, the first end hinge of output shaft 4
It connects in the inside of shell 5, the second end of output shaft 4 extends shell 5, and motor 11 and ring gear 21 are fixed with shell 5；Second
6 first end of pin shaft is connected to inside shell 5, and the second end of the second pin shaft 6 is connected to the middle part of planet carrier 22, and 23 sets of intermediate gear
On the second pin shaft 6.
Wherein, the second end of the second pin shaft 6 can be hinged with the middle part of planet carrier 22, and the second end of the second pin shaft 6 can be with
It is fixed on the middle part of planet carrier 22, the second pin shaft 6 can be rotated together with planet carrier 22, intermediate gear 23, the second pin shaft 6
It can fix, not rotated with planet carrier 22 and intermediate gear 23 with respect to planet carrier 22,23 position of intermediate gear, the second pin shaft 6 is used
In the shaft core position of fixed carrier 22 and intermediate gear 23.
As shown in Figure 1 to Figure 3, in a feasible embodiment, brake as the aforementioned further includes induction pieces 7, defeated
Pin 8, rocker arm 9 and the position sensor 10 for detecting 7 position of induction pieces out；
Output gear 3 is sector gear；Rocker arm 9 and output pin 8 are respectively positioned on outside shell 5, the first end and output shaft of rocker arm 9
4 second end connection, the second end of rocker arm 9 are connect with output pin 8；Induction pieces 7 are fixed on sector gear, and induction pieces 7
In the side far from the sector gear gear teeth；Position sensor 10 is fixed on inside shell 5, and position sensor 10 is located at sector gear
Side, and induction pieces 7 relative to sector gear the gear teeth close to position sensor 10；Position between sector gear and rocker arm 9
It sets relatively fixed.
Specifically, output shaft 4 can change the position of output pin 8 by rocker arm 9, and then can be driven by output pin 8
Other products.Wherein, output gear 3 can be sector gear, and induction pieces 7 are fixed on sector gear, and induction pieces 7 are located at far
Side from the sector gear gear teeth, position sensor 10 are used to detect 7 position of induction pieces, and between sector gear and rocker arm 9
Position is relatively fixed, in this way, position sensor 10 is located at the rotation angle of induction pieces 7 or position on sector gear by induction,
It can determine the position of rocker arm 9 and output pin 8.Optionally, induction pieces 7 can be magnet.
As shown in Figure 4 and Figure 5, in a feasible embodiment, driving mechanism includes sun gear 13, motor 11 and consolidates
The motor gear 12 being scheduled on motor output shaft；
Sun gear 13 includes third gear 131 and the 4th gear 132 being arranged in below third gear 131, third gear
Diameter of 131 diameter less than the 4th gear 132, and third gear 131 and the coaxial setting of the 4th gear 132；Each planet tooth
Wheel 24 is engaged with third gear 131, and the 4th gear 132 is engaged with motor gear 12.
Specifically, when the volume between motor 11 and output shaft 4 and in the case where constant position, pass through the addition sun
13 transmission planetary wheel drive mechanisms are taken turns, the volume of planetary gear transmission mechanism entirety can be effectively reduced.And the third tooth of the sun
The diameter of wheel 131 less than the 4th gear 132 diameter, in this way, motor 11 outputs power to diameter more by motor gear 12
The 4th big gear 132, and the third gear 131 that the 4th gear 132 drives diameter small rotates, and realizes and exports bigger torsion
Square.Optionally, preferably to increase gear degree of engagement and promoting gear-driven stationarity, at least three planetary gears 24 include
Planetary gear 24 be evenly distributed on around third gear 131.
As shown in figures 1 to 6, in a feasible embodiment, brake as the aforementioned further include further include waveform
Spring 14；Waveform spring 14 is arranged between 11 bottom of motor and shell 5.In this way, horse can be made by the way that waveform spring 14 is arranged
It is filled up to the gap between 11 bottoms and shell 5 by waveform spring 14, ensures the stability of motor 11 at work.
In the embodiment of the present application, using a kind of brake that arragement construction is compact, output shaft is fixed on by output gear 3
On 4, the first end of planetary gear transmission mechanism is connect with driving mechanism, and the second end and output gear 3 of planetary gear transmission mechanism connect
It connects, so that the first end of driving mechanism driving planetary gear transmission mechanism, makes the second end of planetary gear transmission mechanism drive output gear
Wheel 3 surround the axial-rotation of output shaft 4, to drive output shaft 4 to rotate.In this way, braking can be effectively reduced compared with the prior art
Device transverse width, and then solid stop volume is effectively reduced, and planetary gear transmission mechanism can make gear degree of engagement increase,
Convenient for being conducive to export bigger torque, while gear-driven stationarity is more preferable, to realize the entirety for making this brake
The overall compact technical effect of structure, to solve the problems, such as that volume existing for brake in the prior art is larger.
Embodiment 2
This application discloses a kind of electric actuator, which includes brake as described in Example 1.
In electric actuator provided by the embodiments of the present application, using brake described in embodiment 1, reduction can achieve
The purpose of whole electric actuator volume, so that realizing makes the overall compact technical effect of the electric actuator of this brake.
Wherein, electric actuator can be tail gas actuator etc..
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of brake, which is characterized in that the brake includes: driving mechanism, planetary gear transmission mechanism, output gear and defeated
Shaft；
The output gear is fixed on the output shaft, and the first end of the planetary gear transmission mechanism and the driving mechanism connect
It connects, the second end of the planetary gear transmission mechanism is connect with the output gear, so that the driving mechanism drives the planet
The first end of wheel drive mechanism makes the second end of the planetary gear transmission mechanism drive the output gear around the output shaft
Axial-rotation, to drive the output shaft to rotate.
2. brake according to claim 1, which is characterized in that the planetary gear transmission mechanism includes: ring gear, planet
Frame, intermediate gear, at least three planetary gears and at least three first pin shafts；
Each corresponding first pin shaft of the planetary gear, each planetary gear are sleeved on corresponding described first
On pin shaft, one end of first pin shaft is connected on the planet carrier, and each planetary gear is respectively positioned on the ring gear
It is interior, and each planetary gear is engaged with the ring gear；
The intermediate gear is connected to the planet carrier, and the intermediate gear is engaged with the output gear, the driving mechanism
It is connected respectively at the planetary gear, so that each same direction of rotation rotation of planetary gear of driving mechanism driving,
The planetary gear drives the planet carrier to rotate relative to the ring gear, rotates the intermediate gear with the planet carrier,
The intermediate gear is driven axial-rotation of the output gear around the output shaft.
3. brake according to claim 2, which is characterized in that the driving mechanism includes: motor and is fixed on described
Motor gear on motor output shaft, each planetary gear are engaged with the motor gear.
4. brake according to claim 3, which is characterized in that the planetary gear that at least three planetary gear includes
It is evenly distributed on around the motor gear.
5. brake according to claim 3, which is characterized in that each planetary gear includes first gear and sets
The second gear below the first gear is set, the diameter of the first gear is less than the diameter of the second gear, and institute
State first gear and the coaxial setting of the second gear；The first gear and the internal tooth that each planetary gear includes
Circle engagement, the second gear that each planetary gear includes are engaged with the motor gear.
6. brake according to claim 3, which is characterized in that the brake further includes shell and the second pin shaft；
The driving mechanism, planetary gear transmission mechanism and output gear are respectively positioned on the inside of the shell, and the of the output shaft
One end is hinged on the inside of the shell, and the second end of the output shaft extends the shell, the motor and the internal tooth
Circle is fixed with the shell；
The second pin shaft first end is connected to the enclosure interior, and the second end of second pin shaft is connected to the planet carrier
Middle part, the intermediate gear is sleeved on second pin shaft.
7. brake according to claim 6, which is characterized in that the brake further include induction pieces, output pin, rocker arm and
For detecting the position sensor of induction pieces position；
The output gear is sector gear；The rocker arm and the output pin are respectively positioned on outside the shell, and the of the rocker arm
One end is connect with the second end of the output shaft, the second end of the rocker arm and the output pin connection；The induction pieces are fixed
On the sector gear, and the induction pieces are located remotely from the side of the sector gear gear teeth；The position sensor is solid
It is scheduled on the enclosure interior, the position sensor is located at the side of the sector gear, and the induction pieces are relative to described
The gear teeth of sector gear are close to the position sensor；Position between the sector gear and the rocker arm is relatively fixed.
8. brake according to claim 2, which is characterized in that the driving mechanism includes sun gear, motor and fixation
Motor gear on the motor output shaft；
The sun gear includes third gear and the 4th gear that is arranged in below the third gear, the third gear it is straight
Diameter is less than the diameter of the 4th gear, and the third gear and the coaxial setting of the 4th gear；Each planet tooth
Wheel is engaged with the third gear, and the 4th gear is engaged with the motor gear.
9. brake according to claim 8, which is characterized in that the planetary gear that at least three planetary gear includes
It is evenly distributed on around the third gear.
10. a kind of electric actuator, which is characterized in that the electric actuator is described in any item including according to claim 1-9
Brake.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920210800.4U CN209705128U (en) | 2019-02-19 | 2019-02-19 | Brake and electric actuator |
| PCT/CN2020/075573 WO2020169002A1 (en) | 2019-02-19 | 2020-02-17 | Brake and electrically-controlled actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920210800.4U CN209705128U (en) | 2019-02-19 | 2019-02-19 | Brake and electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209705128U true CN209705128U (en) | 2019-11-29 |
Family
ID=68643444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920210800.4U Active CN209705128U (en) | 2019-02-19 | 2019-02-19 | Brake and electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209705128U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798308A (en) * | 2019-02-19 | 2019-05-24 | 中原内配（上海）电子科技有限公司 | Brake and electric actuator |
| WO2020169002A1 (en) * | 2019-02-19 | 2020-08-27 | 中原内配（上海）电子科技有限公司 | Brake and electrically-controlled actuator |
| CN113682987A (en) * | 2021-09-09 | 2021-11-23 | 河南省建筑科学研究院有限公司 | Crane operation safety monitoring device |
-
2019
- 2019-02-19 CN CN201920210800.4U patent/CN209705128U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798308A (en) * | 2019-02-19 | 2019-05-24 | 中原内配（上海）电子科技有限公司 | Brake and electric actuator |
| WO2020169002A1 (en) * | 2019-02-19 | 2020-08-27 | 中原内配（上海）电子科技有限公司 | Brake and electrically-controlled actuator |
| CN113682987A (en) * | 2021-09-09 | 2021-11-23 | 河南省建筑科学研究院有限公司 | Crane operation safety monitoring device |
| CN113682987B (en) * | 2021-09-09 | 2023-08-22 | 河南省建筑科学研究院有限公司 | Crane operation safety monitoring device |
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