CN207664732U - Torque actuator - Google Patents
Torque actuator Download PDFInfo
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- CN207664732U CN207664732U CN201721592282.4U CN201721592282U CN207664732U CN 207664732 U CN207664732 U CN 207664732U CN 201721592282 U CN201721592282 U CN 201721592282U CN 207664732 U CN207664732 U CN 207664732U
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- stator
- output shaft
- bearing
- rotor assembly
- torque actuator
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Abstract
The utility model provides a kind of torque actuator, including seal assembly, rotor assembly, stator module, output shaft and sensor module；Article containing space is formed inside seal assembly, the rotor assembly is mounted on stator module in article containing space；Rotor assembly includes magnetic sheet, and stator module includes stator, and the stator includes stator core and coil block；The magnetic sheet is located at the one end of stator core in axial direction；Rotor assembly is fastenedly connected with output shaft, and output shaft in axial direction extends up to except the article containing space；The sensor module includes eccentric wheel and rotary angle transmitter, and rotor assembly and/or output shaft are fastenedly connected with the eccentric wheel.The angular position sensor that the utility model uses is mounted on above rotor substrate, come the test position and real-time output corner position signal by the eccentric wheel in installation axle, and export to peripheral control unit, it is not influenced by magnetic circuit in the course of work, work is more stablized, corresponding precision higher.
Description
Technical field
The utility model is related to engine fuel regulation technology fields, and in particular, to torque actuator.
Background technology
Torque actuator is as speed governing executing agency, it is desirable that and its dynamic response is fast, stable state accuracy is high, environmental suitability is strong,
Under domestic present condition, the seriation of executing agency and mass production capabilities are hardly formed, thus are largely hindered
The popularization and application and development of this technology.As electron speed regulator, the difficult point in R＆D process is mainly torque actuator：One
Can frictional resistance be bigger than normal, thus static characteristic is bad, effectively overcome frictional resistance, and it is its key to improve static characteristic；Its
Control accuracy in two pairs of its courses of work, precision controlling are then embodied in the close association inside actuator between each parts again
Work coordinates, and the accurate monitoring of output characteristics has much relations with accurate measure of internal sensor, it is contemplated that its reliability and
Long life requirements as far as possible, is even more important to the layout and design of internal structure.
Patent document CN104377843B provides a kind of sealing claw pole axial magnetic circuit brushless, permanently excited direct current motor, the motor
Stator is in the vertical uniform fixed pawl pole of a pedestal surrounding, and the center line of pawl pole is parallel with the axis of shaft, and wiring is covered in pawl pole
Winding is enclosed, the coil windings on the pedestal of motor stator, pedestal pawl pole cover envelope with plastic, form barrel-shaped plastic part, separately there is the cover
Lid is enclosed on barrel-shaped plastic part, and the shaft of rotor passes through stator base, vertical secured core, and permanent magnetism is uniformly fixed on iron core
Body magnet steel, another face center of iron core, fixes one block of sensor magnet steel, and the sensor magnet steel and the cover inner wall are fixed
Hall sensor is corresponding.Axial magnetic circuit is used according to the patent document readme generator, torque is big, efficient；Size is empty simultaneously
Between it is small, the system integration is strong.But in the patent document, Hall sensor is fixed on the cover inner wall and is fixed on the another of iron core
The sensor magnet steel of the center in a face is corresponding, and sensor magnet steel is axial charging, during the work time stator, rotor
Magnetic circuit can pass through the sensor, be impacted to the work of sensor；In addition, the patent document is supported using single-bearing, when answering
When on the actuator of large-size, it is easy to happen frictional dissipation, is reduced the service life and reliability, while axially position side
Face also suffers from certain drawbacks.
Utility model content
For the defects in the prior art, the purpose of this utility model is to provide a kind of torque actuator.
According to torque actuator provided by the utility model, including seal assembly, rotor assembly, stator module, output shaft
And sensor module；
Article containing space is formed inside seal assembly, the rotor assembly is mounted on stator module in article containing space；
Rotor assembly includes magnetic sheet, and stator module includes stator, and the stator includes stator core and coil block；It is described
Magnetic sheet is located at the one end of stator core in axial direction；
Rotor assembly is fastenedly connected with output shaft, and output shaft in axial direction extends up to except the article containing space；
The sensor module includes eccentric wheel and rotary angle transmitter, rotor assembly and/or output shaft and the eccentric wheel
It is fastenedly connected.
Preferably, the seal assembly includes outer casing and upper cover plate；Outer casing is fastenedly connected with upper cover plate；
The both ends of output shaft in axial direction, which extend, to be extended through except outer casing, upper cover plate arrival article containing space.
Preferably, also include bearing, include first bearing and second bearing in multiple bearings；
Output shaft is rotatablely connected with upper cover plate, outer casing respectively by first bearing, second bearing.
Preferably, the rotor assembly also includes rotor substrate, and quantity is distributed on along circumferential direction for a magnetic sheets of 2n to be turned
On submount, wherein n is positive integer；
Extending direction is parallel with stator core axial direction between the two poles of the earth the magnetic sheet N-S；Along circumferential direction, two neighboring
The magnetic pole opposed of magnetic sheet.
Preferably, the stator module also includes stator substrate；Multiple stators are distributed on stator substrate along circumferential direction；
Stator quantity is equal with magnetic sheet quantity.
Preferably, stator module also includes embedding, and stator and stator substrate are fixed in article containing space by the embedding.
Preferably, the magnetic sheet, rotor substrate, rotary angle transmitter are sequentially arranged along output shaft axial direction.
Preferably, first bearing and second bearing are needle bearing.
Preferably, bottom surface boss is provided on the outer casing, rotor substrate is mounted on bottom surface outer wall of boss face and outer cover
Between shell internal face；
Outer casing bottom is provided with trepanning, and rotor substrate and stator core are fastenedly connected by fastener across trepanning.
Compared with prior art, the utility model has following advantageous effect：
1, the angular position sensor that the utility model uses is mounted on above rotor substrate, passes through the bias in installation axle
Wheel comes test position and in real time output corner position signal, and exports to peripheral control unit, not by the shadow of magnetic circuit in the course of work
It rings, work is more stablized, corresponding precision higher.
2, the utility model is supported using upper and lower two bearings, can effectively reduce frictional dissipation, improve service life and
Reliability is suitable for the manufacture of larger-size actuator；Had in assembling process well using upper and lower two bearings simultaneously
Axially position acts on.
3, rotor only needs minimum maintenance electric current that can fix output position after reaching setting position in the utility model,
Power consumption substantially reduces, and due to taking the form of multipair pole, efficiency to improve, small, quality is low, meets engine application demand.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is the utility model forward direction sectional view；
Fig. 2 is stator module dimensional structure diagram；
Fig. 3 is stator module diagrammatic cross-section；
Fig. 4 is rotor assembly dimensional structure diagram；
Fig. 5 is rotor assembly diagrammatic cross-section；
Fig. 6 is that the utility model torque exports schematic diagram.
It is shown in figure：
Specific implementation mode
The utility model is described in detail with reference to specific embodiment.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These belong to the scope of protection of the utility model.
In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or member
Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
As shown in Figure 1, torque sensor provided by the utility model include seal assembly, it is rotor assembly, stator module, defeated
Shaft 5 and sensor module.The seal assembly includes outer casing 1 and upper cover plate 4, and outer casing 1 connects with the fastening of upper cover plate 4
It connects, forms article containing space inside seal assembly, rotor assembly, stator module and sensor are respectively positioned in the article containing space.
As shown in Figure 4, Figure 5, the rotor assembly includes rotor substrate 7 and magnetic sheet 8, and output shaft 5 is fastenedly connected with rotor substrate 7, magnetic
Piece 8 is permanent magnet, and is fixed on the lower face of rotor substrate 7.As shown in Figure 2 and Figure 3, the stator module includes stator iron
Core 9, coil block 10, stator substrate 11 and embedding 13, stator core 9 form stator, stator substrate 11 with coil block 10
On 1 inner bottom surface of outer casing, multiple stators are mounted on stator substrate 11 along circumferential direction, and embedding 13 is then by stator, fixed
Submount 11 are sealed fixation, while also entire stator module being fixed in article containing space；In addition, being provided on outer casing
Bottom surface boss, rotor substrate 7 are mounted between 1 internal face of bottom surface outer wall of boss face and outer casing, are played preferably to stator substrate
Radial positioning effect, outer casing bottom is provided with trepanning, using the fastener of such as screw pass through trepanning by rotor substrate 7 with
Stator core 9 is fastenedly connected, and plays the role of preferable axially position.The sensor includes angular transducer and eccentric wheel 3, is turned
Sub-component and/or output shaft 5 are fastenedly connected with the eccentric wheel 3, and angular transducer is correspondingly arranged with eccentric wheel 3, for detecting
The angular position of output shaft 5.In addition, output shaft 5 is connect by bearing with seal assembly, ensure the flatness of rotation.
The utility model is in design, it is contemplated that when using the structure of Hall sensor and magnet steel in the prior art, Hall
Sensor can be influenced by the magnetic field of magnet steel and magnetic sheet on rotor assembly 8 simultaneously, and prodigious error is brought to testing result, because
This uses the structure of eccentric wheel 3 and the rotary angle transmitter 2 of such as current vortex sensor, and rotary angle transmitter 2 is mounted on rotor base
The top of plate 7, come the test position and real-time output corner position signal by the eccentric wheel 3 that is mounted on an axle, and export to outer
Portion's controller is not influenced by magnetic circuit in the course of work, and work is more stablized, corresponding precision higher.Certainly, the eccentric wheel
3 can also be cam equal radial length with the changed structure in angle position.Further, the eccentric wheel 3 of use can be with
Output shaft 5 carries out nested encryptions, and rotary angle transmitter 2 is provided with the side along the radially rather than axially direction of output shaft 5 so that
Output shaft 5 can it is existing downwards be pierced by structure on the basis of, in axial direction upward run through upper cover plate 4, formed it is two-way defeated
Go out, the assembly method reflected in Fig. 1 be output shaft 5 by first bearing 6, second bearing 12 respectively with upper cover plate 4, outer cover
Shell 1 is rotatablely connected, and the both ends of output shaft 5 in an axial direction extend through upper cover plate 4,1 lower face of outer casing reaches except article containing space.
Consider the service life and reliability of torque actuator in practical applications, especially for larger-size torque actuator,
It can be further reduced frictional dissipation using two bearings, while in assembling process, the structure of upper and lower two bearings is also unexpected
Good axially position effect is achieved, the axial float of output shaft 5 in the process of running is reduced.Certainly, in preference,
More bearings can also be set to further enhance above-mentioned advantageous effect, but the size of torque actuator is required and is assembled
It is required that can increase as number of bearings increases.In embodiment, first bearing 6 and second bearing 12 are needle bearing, preferably
In example, first bearing 6 and second bearing 12 can also be deep groove ball bearing, suitable higher rotation speed, but the diameter of deep groove ball bearing
It is poor to bearing capacity, and radial space size is big, is unfavorable for integrally-built miniaturization；It preferably, can also be only with
One needle bearing structure saves manufacturing cost, but the frictional force of output shaft 5 can be larger, seriously affects the utility model
Output characteristics.
The utility model ensures certain air gap, the air gap and actuator are defeated in assembly between magnetic sheet 8 and stator core 9
It is related to go out torque.In Electric Actuator design, it can be required to design different stator cores 9 according to output corner different range
Number of pole-pairs n, the quantity of magnetic sheet 8 is 2n at this time, and wherein n is positive integer.Stator core 9 is needed with magnetic sheet 8 in Electric Actuator knot
It is distributed along central axes axial symmetry in structure.In addition, in circumferential direction, current direction when adjacent stators are powered in coil block 10
On the contrary, all magnetic sheets 8 are axial charging and in circumferential direction, 8 polarity of the magnetic field of adjacent magnetic sheet is on the contrary, when motor is in initial
When position, stator core 9 is axially aligned with magnetic sheet 8, but is not required on polarity and (is only influenced electric current positive and negative rotation direction).Output turns
Angular region is related with number of pole-pairs.For example, when n=2, stator core 9 is 2 pairs.Magnetic sheet 8 totally 4, at this time the utility model be powered
When, it is 90 ° to have the angle range that torque exports, as shown in Figure 6, it is known that nominal current conditions are given in torque output range having
Under, about 70 ° of ranges belong to nominal torque range above, therefore when n=2, ranging from 70 ° of effective output corner.It is fixed as n=3
Sub- iron core 9 is 3 pairs.Magnetic sheet 8 totally 6, at this time the limited angle torque motor be powered when, have torque export angle range be
60 °, having in torque output range, about 35 ° of ranges belong to nominal torque range above, therefore when n=3, effective output corner
Ranging from 35 °.
The utility model is additionally provided with controller, is further improved on the basis of structure provided by the utility model, institute
It includes with lower module to state controller：Signal acquisition module：It obtains regulating command signal and/or is reacted in rotary angle transmitter 2
The signal of angular position；Power control module：According to regulating command signal and/or the reaction corner position in rotary angle transmitter 2
The signal set, control are powered to coil block 10.In use, torque actuator refers to according to the adjusting from operation interface
Enable signal that first the angle position of output shaft 5 is adjusted, the real-time output corner position signal of angular transducer is real to controller
Existing position-force control, provides control accuracy.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (9)
1. a kind of torque actuator, which is characterized in that comprising seal assembly, rotor assembly, stator module, output shaft (5) and
Sensor module；
Article containing space is formed inside seal assembly, the rotor assembly is mounted on stator module in article containing space；
Rotor assembly includes magnetic sheet (8), and stator module includes stator, and the stator includes stator core (9) and coil block
(10)；The magnetic sheet (8) is located at the one end of stator core (9) in axial direction；
Rotor assembly is fastenedly connected with output shaft (5), and output shaft (5) in axial direction extends up to except the article containing space；
The sensor module includes eccentric wheel (3) and rotary angle transmitter (2), rotor assembly and/or output shaft (5) with it is described partially
Heart wheel (3) is fastenedly connected.
2. torque actuator according to claim 1, which is characterized in that the seal assembly include outer casing (1) with it is upper
Cover board (4)；Outer casing (1) is fastenedly connected with upper cover plate (4)；
The both ends of output shaft (5) in axial direction, which extend, to be extended through except outer casing (1), upper cover plate (4) arrival article containing space.
3. torque actuator according to claim 2, which is characterized in that also include bearing, include in multiple bearings
First bearing (6) and second bearing (12)；
Output shaft (5) is rotatablely connected with upper cover plate (4), outer casing (1) respectively by first bearing (6), second bearing (12).
4. torque actuator according to claim 2, which is characterized in that the rotor assembly also includes rotor substrate (7),
Quantity is that 2n magnetic sheets (8) are distributed on along circumferential direction on rotor substrate (7), wherein n is positive integer；
Extending direction is parallel with stator core (9) axial direction between described magnetic sheet (8) the two poles of the earth N-S；Along circumferential direction, adjacent two
The magnetic pole opposed of a magnetic sheet (8).
5. torque actuator according to claim 4, which is characterized in that the stator module also includes stator substrate
(11)；Multiple stators are distributed on along circumferential direction on stator substrate (11)；
Stator quantity is equal with magnetic sheet (8) quantity.
6. torque actuator according to claim 5, which is characterized in that stator module also includes embedding (13), the filling
Stator and stator substrate (11) are fixed in article containing space by envelope (13).
7. torque actuator according to claim 4, which is characterized in that the magnetic sheet (8), rotor substrate (7), corner pass
Sensor (2) is sequentially arranged along output shaft (5) axial direction.
8. torque actuator according to claim 3, which is characterized in that first bearing (6) is with second bearing (12)
Needle bearing.
9. torque actuator according to claim 4, which is characterized in that be provided with bottom surface boss on the outer casing, turn
Submount (7) are mounted between bottom surface outer wall of boss face and outer casing (1) internal face；
Outer casing (1) bottom is provided with trepanning, and rotor substrate (7) and stator core (9) are fastenedly connected by fastener across trepanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721592282.4U CN207664732U (en) | 2017-11-24 | 2017-11-24 | Torque actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721592282.4U CN207664732U (en) | 2017-11-24 | 2017-11-24 | Torque actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207664732U true CN207664732U (en) | 2018-07-27 |
Family
ID=62947261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721592282.4U Active CN207664732U (en) | 2017-11-24 | 2017-11-24 | Torque actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207664732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842224A (en) * | 2017-11-24 | 2019-06-04 | 中国船舶重工集团公司第七一一研究所 | Torque actuator |
-
2017
- 2017-11-24 CN CN201721592282.4U patent/CN207664732U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842224A (en) * | 2017-11-24 | 2019-06-04 | 中国船舶重工集团公司第七一一研究所 | Torque actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711 Research Institute of China Shipbuilding Corp. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: Shanghai Marine Diesel Engine Research Institute |
|
| CP01 | Change in the name or title of a patent holder |