CN107171490B - A kind of rotation speed control device - Google Patents
A kind of rotation speed control device Download PDFInfo
- Publication number
- CN107171490B CN107171490B CN201710398950.8A CN201710398950A CN107171490B CN 107171490 B CN107171490 B CN 107171490B CN 201710398950 A CN201710398950 A CN 201710398950A CN 107171490 B CN107171490 B CN 107171490B
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- Prior art keywords
- magnetosphere
- cam finger
- seat
- rotation speed
- fixed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Centrifugal Separators (AREA)
Abstract
The present invention provides a kind of rotation speed control device, centrifugation component is located on connection component, link assembly is connect with centrifugation component, link assembly answers magnetosphere to connect with the innervation of electromagnetic induction component, innervation answers the fixed induction magnetosphere of magnetosphere and electromagnetic induction component to constitute induction magnetosphere, fixed induction magnetosphere connects to power supply, innervation answers magnetosphere to connect with signal processor, a kind of rotation speed control device provided by the invention, it is designed using mechanical structure, it ensure that the reliability of velocity measuring and control, utilize the centrifugal force of cam finger, and centrifugal force is amplified by link assembly, be converted to electromagnetic induction, the Detection & Controling to revolving speed are realized by the distance of two magnetic induction coils of electromagnetic induction, cam finger of the invention uses hollow structure, and it assists to be centrifuged end high-density balls, the centrifugation under velocity variations can be improved The embodiment of power, structure of the invention is novel, rationally, is very suitable to the Detection & Controling of the rotation speed under conditions of bad environments.
Description
Technical field
The present invention relates to Machine Design and mechanical detection control technology field, specially a kind of rotation speed control device,
Belong to Machine Design and field of automation technology.
Background technique
In machinery field, for rotary shaft, driving rotation is generally carried out using motor, in rotary course, generally
It needs to carry out Detection & Controling to revolving speed, to prevent the phenomenon that excessively high speed overloads.Although occurring such as compiling at present
Code device, optical measurement etc. realize the device of the Detection & Controling of revolving speed, still, these devices generally install it is more troublesome,
Moreover, being not suitable for using under conditions of bad environments, although and simple magnetoelectric tachometric transducer is in fields such as automobiles at present
Using also more, still, the detection accuracy and effect of revolving speed be not very reliable.
Based on the above technical problem, the present invention provides a kind of rotation speed control device, the present invention is using mechanical knot
Structure can effectively guarantee the Detection & Controling of rotation speed, improve detection accuracy, prevent the overload of the excessively high speed of rotary shaft
Operation.
Summary of the invention
The object of the present invention is to provide a kind of structure and using simply, rationally, detection accuracy is improved, the mistake of rotary shaft is prevented
A kind of rotation speed control device of the overlond running of high speed.
To achieve the above object, the present invention adopts the following technical scheme: a kind of rotation speed control device, feature exist
In, which is characterized in that it include with it is to be controlled rotation axis connection connection component and setting outside fix protective cover in from
Heart component, link assembly and electromagnetic induction component, wherein the centrifugation component is arranged on the connection component, described
Link assembly connect with the centrifugation component, the link assembly answers magnetosphere to connect with the innervation of electromagnetic induction component, institute
The innervation stated answers the fixed induction magnetosphere of magnetosphere and electromagnetic induction component to constitute induction magnetosphere, the fixed induction magnetosphere and power supply
Connection, the innervation answer magnetosphere to connect with signal processor, and the signal processor is for the Detection & Controling to speed.
Further, preferably, the connection component include connecting shaft, connection shaft seat, drive shaft, bearing block and partially
Heart pawl hinged seat, wherein the bearing block is fixed on outer fixed protective cover, and the drive shaft is using bearing support in institute
It states in bearing block, the outer end of the drive shaft passes through the connection shaft seat and the connection axis connection, the connecting shaft
Using shaft coupling and rotation axis connection to be controlled, the inner end of the bearing block is integrally fixedly installed cam finger hinged seat, institute
Stating cam finger hinged seat is pyramidal structure.
Further, preferably, the centrifugation component includes cam finger one and cam finger two, wherein the cam finger
The small tapered end of the cam finger hinged seat, and the cam finger is hingedly arranged in one one end and one end of cam finger two
One is symmetrical arranged with cam finger two, and the cam finger one is identical with two structure of cam finger, the cam finger one and cam finger two
The one end being connect with cam finger hinged seat be hollow structure, and one end far from cam finger hinged seat is eccentric end, eccentric
The inside filling at end is equipped with high-density balls, and the density of the material of the high-density balls is at least 2 times of cam finger material density.
Further, preferably, the link assembly includes connecting rod one, connecting rod two, spring and slide bar, wherein institute
The one end for the connecting rod one stated hingedly is arranged on the cam finger one using flexural pivot, and one end of the connecting rod two uses ball
Hinge is hinged to be arranged on the cam finger two, and the other end of the other end of the connecting rod one and the connecting rod two uses
Universal hinging ball-joint setting, the connecting rod one is identical with size with the shape of the connecting rod two, described
It being also connected on universal hinging ball and is provided with slide bar, the end of the slide bar is fixedly connected on innervation and answers on magnetosphere, and described ten thousand
The spring is also connected between hinged ball and the cam finger hinged seat.
Further, preferably, the innervation answers the both ends of magnetosphere to be provided with slide, the slide and setting are solid outside
Determine the sliding rail cooperation sliding on protective cover.
Further, described solid preferably, the innervation answers magnetosphere to connect using magnetosphere attachment base with signal processor
Surely induction magnetosphere is connect using magnetosphere attachment base with the socket on power supply, and the magnetosphere attachment base includes seat shell, sealant, interior
Seat, connection-peg and outer seat, wherein it is cored using sealant fixed setting inside one end of the seat shell, on the iron core
Winding is provided with induction coil, and the connector on the induction coil is connect by electric wire with connection-peg, the connection-peg
Inner end is fixed in the inner seat, and the middle and upper part of the connection-peg is fixed on the outer seat, the inner seat and outer seat
It is arranged in the seat shell, the full sealant is filled between the seat shell and outer seat.
Further, preferably, the outer end of the outer fixed protective cover also passes through cover fixing seat to the outer fixation
Protective cover is fixed.
Further, described preferably, being further fixedly arranged on overload limit base on the inner wall of the outer fixed protective cover
The end of overload limit base be provided with overload limit switch, it is the overload limit switch and the cam finger one, eccentric
The position of pawl two is correspondingly arranged, to prevent the excessive caused centrifugal force of the rotation speed of cam finger one and cam finger two from overloading,
The overload limit switch is connect with the driver of rotary shaft to be controlled.
Further, preferably, the control device is all made of non magnetic material in addition to innervation answers magnetosphere and fixed induction magnetosphere
Material is made, and is provided with shielded layer on the inner wall of the outer fixed protective cover.
The beneficial effects of the present invention are:
A kind of rotation speed control device provided by the invention, is designed using mechanical structure, ensure that velocity measuring
With the reliability of control, is amplified using the centrifugal force of cam finger, and by centrifugal force by link assembly, be converted to electromagnetism sense
It answers, the Detection & Controling to revolving speed is realized by the distance of two magnetic induction coils of electromagnetic induction, cam finger of the invention is adopted
With hollow structure, and assist that the embodiment of the centrifugal force under velocity variations, structure of the invention can be improved to be centrifuged end high-density balls
Novelty is rationally very suitable to the Detection & Controling of the rotation speed under conditions of bad environments.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of rotation speed control device of the invention；
Fig. 2 is a kind of structural schematic diagram of the magnetosphere attachment base of rotation speed control device of the invention；
Fig. 3 is a kind of structural schematic diagram of the cam finger of rotation speed control device of the invention；
Wherein, 1, connecting shaft, 2, connection shaft seat, 3, drive shaft, 4, bearing block, 5, cam finger hinged seat, 6, cam finger
One, 7, outer fixed protective cover, 8, cover fixing seat, 9, connecting rod one, 10, connecting rod two, 11, spring, 12, slide bar, 13, innervation answers
Magnetosphere, 14, fixed induction magnetosphere, 15, power supply, 16, signal wire, 17, signal processor, 18, magnetosphere attachment base, 19, cam finger
Two, 20, overload limit switch, 21, overload limit base, 22, bearing (ball) cover, 23, seat shell, 24, iron core, 25, induction coil, 26 electricity
Line, 27, sealant, 28, inner seat, 29, connection-peg, 30, outer seat, 31, cavity, 32, high-density balls, 33, flexural pivot.
Specific embodiment
Come to carry out detailed description to the present invention below in conjunction with attached drawing.It should be appreciated, however, that attached drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in Figure 1-3, a kind of rotation speed control device, which is characterized in that it is characterized in that, which is characterized in that its
Including with it is to be controlled rotation axis connection connection component and setting outside fix protective cover in centrifugation component, link assembly and
Electromagnetic induction component, wherein the centrifugation component is arranged on the connection component, the link assembly and described
Be centrifuged component connection, the link assembly answers magnetosphere to connect with the innervation of electromagnetic induction component, the innervation answer magnetosphere 13 and
The fixed induction magnetosphere 14 of electromagnetic induction component constitutes induction magnetosphere, and the fixed induction magnetosphere 14 is connect with power supply 15, described
Innervation answer magnetosphere 13 to connect with signal processor 17, the signal processor 17 is for Detection & Controling to speed.
Wherein, the connection component includes connecting shaft 1, connection shaft seat 2, drive shaft 3, bearing block 4 and cam finger hinge
Joint chair 5, wherein the bearing block 4 is fixed on outer fixed protective cover 7, and the drive shaft 3 is using bearing support described
In bearing block, the outer end of the drive shaft 3 is connect by the connection shaft seat 2 with the connecting shaft 1, the connecting shaft
1 is integrally fixedly installed cam finger hinged seat 5 using shaft coupling and rotation axis connection to be controlled, the inner end of the bearing block,
The cam finger hinged seat 5 is pyramidal structure.The centrifugation component includes cam finger 1 and cam finger 2 19, wherein described
The small tapered end of the cam finger hinged seat 5, and institute is hingedly arranged in one end of cam finger 1 and one end of cam finger 2 19
The cam finger 1 and cam finger 2 19 stated are symmetrical arranged, and the cam finger 1 is identical with 2 19 structure of cam finger, and described is inclined
Heart pawl one is hollow structure 31 with the one end of cam finger two connecting with cam finger hinged seat, and far from cam finger hinged seat
One end is eccentric end, and the inside filling of eccentric end is equipped with high-density balls 32, and the density of the material of the high-density balls is at least
2 times of cam finger material density.
In addition, the link assembly includes connecting rod 1, connecting rod 2 10, spring 11 and slide bar 12, wherein described
One end of connecting rod 1 is hingedly arranged on the cam finger 1 using flexural pivot 33, and one end of the connecting rod 2 10 uses
Flexural pivot 33 is hingedly arranged on the cam finger 2 19, the other end of the connecting rod 1 and the connecting rod 2 10
The other end is arranged using universal hinging ball-joint, the shape and the complete phase of size of the connecting rod one and the connecting rod two
Together, it is also connected on the universal hinging ball and is provided with slide bar 12, the end of the slide bar 12 is fixedly connected on innervation and answers magnetic
On circle 13, the spring 11 is also connected between the universal hinging ball and the cam finger hinged seat.
In order to guarantee that the accuracy and flexibility of sliding, the innervation answer the both ends of magnetosphere to be provided with slide, the cunning
The sliding rail that seat is fixed on protective cover outside with setting, which cooperates, to be slided.
It connects and designs for the ease of modularization, the innervation answers magnetosphere to connect using magnetosphere attachment base 18 and signal processor
It connects, the fixed induction magnetosphere is connect using magnetosphere attachment base 18 with the socket on power supply, and the magnetosphere attachment base includes seat
Shell 23, sealant 27, inner seat 28, connection-peg 29 and outer seat 30, wherein solid using sealant inside one end of the seat shell 23
Surely it is arranged cored 24, winding is provided with induction coil 25 on the iron core 24, and the connector on the induction coil 25 passes through
Electric wire 26 is connect with connection-peg 29, and the inner end of the connection-peg 29 is fixed in the inner seat 28, the connection-peg
Middle and upper part is fixed on the outer seat 30, and the inner seat 28 and outer seat 30 are arranged in the seat shell 23, the seat shell
The full sealant 27 is filled between 23 and outer seat.
The outer fixed protective cover is carried out in addition, the outer end of the outer fixed protective cover also passes through cover fixing seat 8
It is fixed.Overload limit base 21 is further fixedly arranged on the inner wall of the outer fixed protective cover, the overload limit base 21
End is provided with overload limit switch 20, the position pair of the overload limit switch and the cam finger one, cam finger two
It should be arranged, to prevent the excessive caused centrifugal force of the rotation speed of cam finger one and cam finger two from overloading, the overload limit
Bit switch is connect with the driver of rotary shaft to be controlled.The control device is all made of in addition to innervation answers magnetosphere and fixed induction magnetosphere
Non-magnetic material is made, and is provided with shielded layer on the inner wall of the outer fixed protective cover.
A kind of rotation speed control device provided by the invention, is designed using mechanical structure, ensure that velocity measuring
With the reliability of control, is amplified using the centrifugal force of cam finger, and by centrifugal force by link assembly, be converted to electromagnetism sense
It answers, the Detection & Controling to revolving speed is realized by the distance of two magnetic induction coils of electromagnetic induction, cam finger of the invention is adopted
With hollow structure, and assist that the embodiment of the centrifugal force under velocity variations, structure of the invention can be improved to be centrifuged end high-density balls
Novelty is rationally very suitable to the Detection & Controling of the rotation speed under conditions of bad environments.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (9)
1. a kind of rotation speed control device, which is characterized in that it include with it is to be controlled rotation axis connection connection component and
Centrifugation component, link assembly and the electromagnetic induction component fixed in protective cover outside are set, wherein the centrifugation component setting
On the connection component, the link assembly is connect with the centrifugation component, the link assembly and electromagnetic induction
The innervation of component answers magnetosphere to connect, and the innervation answers the fixed induction magnetosphere of magnetosphere and electromagnetic induction component to constitute induction magnetic
Circle, the fixed induction magnetosphere connect to power supply, and the innervation answers magnetosphere to connect with signal processor, the signal processing
Device is for the Detection & Controling to speed.
2. a kind of rotation speed control device according to claim 1, which is characterized in that the connection component includes connecting
Spindle, connection shaft seat, drive shaft, bearing block and cam finger hinged seat, wherein the bearing block is fixed on outer fixed protective cover
On, for the drive shaft using bearing support in the bearing block, the outer end of the drive shaft passes through the connection
Axle bed and the connection axis connection, the connecting shaft use shaft coupling and rotation axis connection to be controlled, the bearing block
Inner end is integrally fixedly installed cam finger hinged seat, and the cam finger hinged seat is pyramidal structure.
3. a kind of rotation speed control device according to claim 2, which is characterized in that the centrifugation component includes bias
Pawl one and cam finger two, wherein one end of the cam finger one and one end of cam finger two are hingedly arranged in described inclined
The small tapered end of heart pawl hinged seat, and the cam finger one and cam finger two are symmetrical arranged, the cam finger one and cam finger two
Structure is identical, and the cam finger one is hollow structure with the one end of cam finger two connecting with cam finger hinged seat, and remote
One end from cam finger hinged seat is eccentric end, and the inside filling of eccentric end is equipped with high-density balls, the material of the high-density balls
The density of matter is at least 2 times of cam finger material density.
4. a kind of rotation speed control device according to claim 3, which is characterized in that the link assembly includes connection
Bar one, connecting rod two, spring and slide bar, wherein the bias is hingedly arranged in using flexural pivot in one end of the connecting rod one
On pawl one, one end of the connecting rod two is hingedly arranged on the cam finger two using flexural pivot, the connecting rod one
The other end and the other end of the connecting rod two are arranged using universal hinging ball-joint, the connecting rod one and the company
The shape of extension bar two is identical with size, is also connected on the universal hinging ball and is provided with slide bar, the end of the slide bar
Portion is fixedly connected on innervation and answers on magnetosphere, is also connected between the universal hinging ball and the cam finger hinged seat described
Spring.
5. a kind of rotation speed control device according to claim 3, which is characterized in that the innervation answers the both ends of magnetosphere
It is provided with slide, the sliding rail that the slide and setting are fixed outside on protective cover, which cooperates, to be slided.
6. a kind of rotation speed control device according to claim 5, which is characterized in that the innervation answers magnetosphere to use
Magnetosphere attachment base is connect with signal processor, and the fixed induction magnetosphere is connect using magnetosphere attachment base with the socket on power supply,
The magnetosphere attachment base includes seat shell, sealant, inner seat, connection-peg and outer seat, wherein is adopted inside one end of the seat shell
Cored with sealant fixed setting, winding is provided with induction coil on the iron core, and the connector on the induction coil is logical
It crosses electric wire to connect with connection-peg, the inner end of the connection-peg is fixed in the inner seat, the middle and upper part of the connection-peg
It is fixed on the outer seat, the inner seat and outer seat are arranged in the seat shell, are filled out between the seat shell and outer seat
Full of the sealant.
7. a kind of rotation speed control device according to claim 2, which is characterized in that the outer fixed protective cover
Outer end also passes through cover fixing seat and the outer fixed protective cover is fixed.
8. a kind of rotation speed control device according to claim 5, which is characterized in that the outer fixed protective cover
Overload limit base is further fixedly arranged on inner wall, the end of the overload limit base is provided with overload limit switch, described
The position of overload limit switch and the cam finger one, cam finger two is correspondingly arranged, to prevent cam finger one and cam finger
The driver of the overload of centrifugal force caused by two rotation speed is excessive, the overload limit switch and rotary shaft to be controlled connects
It connects.
9. according to a kind of rotation speed control device described in claim 2-7 any one, which is characterized in that the control device
It is all made of non-magnetic material in addition to innervation answers magnetosphere and fixed induction magnetosphere to be made, and on the inner wall of the outer fixed protective cover
It is provided with shielded layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398950.8A CN107171490B (en) | 2017-05-31 | 2017-05-31 | A kind of rotation speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398950.8A CN107171490B (en) | 2017-05-31 | 2017-05-31 | A kind of rotation speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107171490A CN107171490A (en) | 2017-09-15 |
| CN107171490B true CN107171490B (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710398950.8A Active CN107171490B (en) | 2017-05-31 | 2017-05-31 | A kind of rotation speed control device |
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| Country | Link |
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| CN (1) | CN107171490B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895133B (en) * | 2018-09-14 | 2021-03-09 | 西北工业大学 | Power transmission speed reducing system |
| CN111404319A (en) * | 2020-04-17 | 2020-07-10 | 杭州千耘贸易有限公司 | Electric motor car stall protection device based on electromagnetic induction principle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247316A (en) * | 1998-09-07 | 2000-03-15 | 陈启星 | Electromagnetically inductive speedometer |
| CN1338635A (en) * | 2000-08-15 | 2002-03-06 | 陈启星 | Electromagnetic induction speedometer |
| JP2013049556A (en) * | 2011-08-31 | 2013-03-14 | Toshiba Elevator Co Ltd | Contactless testing device of elevator governor |
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- 2017-05-31 CN CN201710398950.8A patent/CN107171490B/en active Active
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