CN101599678A - Self-adjusting brake 3-phase asynchronous motor - Google Patents
Self-adjusting brake 3-phase asynchronous motor Download PDFInfo
- Publication number
- CN101599678A CN101599678A CNA2009100695461A CN200910069546A CN101599678A CN 101599678 A CN101599678 A CN 101599678A CN A2009100695461 A CNA2009100695461 A CN A2009100695461A CN 200910069546 A CN200910069546 A CN 200910069546A CN 101599678 A CN101599678 A CN 101599678A
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- armature
- ectosome
- yoke
- backstopping device
- brake
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of self-adjusting brake 3-phase asynchronous motor, constitute by motor and electromagnetic brake, wherein: all coaxial package has guide pin bushing on the bonnet of electromagnetic brake and the screw rod between the gusset piece, all slip cap is equipped with backstopping device on the guide pin bushing between bonnet and the armature, the backstopping device axial location is installed in the yoke periphery, carries out fixed gap by backstopping device between yoke and the armature and installs.Self-adjusting brake 3-phase asynchronous motor scientific structure design of the present invention is reasonable, has the function in automatic adjusting drag friction gap, in use improves the security performance of motor greatly, reduces the maintenance maintenance expense, has good marketing prospect.
Description
Technical field
The invention belongs to the braking motor field, particularly a kind of self-adjusting brake 3-phase asynchronous motor.
Background technology
The electromagnetic braking threephase asynchronous is widely used in the machine driven system of industries such as lifting, building.It is made of motor and electromagnetic brake two parts usually.Wherein electromagnetic brake plays transferring power and controlled motion in machine driven system.Existing electromagnetic brake is made up of bonnet, yoke, magnet exciting coil, armature, friction plate, gusset piece, spring etc. mostly, and friction plate is by the propeller shaft couplings of spline housing and motor.Its operation principle is: when the brake magnet exciting coil is switched on, produce magnetic flux, armature is inhaled to yoke, on-position is disengaged, and power transmission shaft is in free state; During outage, compressed main spring applies pressure to armature, and armature and friction plate are pressed on together, produces braking moment, plays braking purpose to power transmission shaft by the spline housing that installs with friction plate.Brake is in running, because the wearing and tearing of friction plate, the haul distance of armature will increase.If armature travel length increases to more than the normal value, will reduce suction and ability and braking moment greatly, the functional reliability of brake is impacted, produce potential safety hazard.Therefore, must adjust recovering the operate as normal gap between armature and the friction plate, but this adjustment must just can be finished by the professional, have that the maintenance maintenance difficulty is big, drawback such as waste time and energy.Existing automatic mechanism with self-adjusting electromagnetic brake is comparatively complicated, and the production difficulty is big, and cost is higher, and less reliable is unsuitable for applying.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, be easy to manufacture, self-adjusting brake 3-phase asynchronous motor that reliability is splendid.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of self-adjusting brake 3-phase asynchronous motor, constitute by motor and electromagnetic brake, electromagnetic brake is by bonnet, yoke, magnet exciting coil, armature, gusset piece, friction plate, spline housing, main spring, little spring constitutes, friction plate connects with motor shaft by spline housing, the bonnet of electromagnetic brake, gusset piece and motor axially install fixing by the long bolt of periphery, the armature periphery of electromagnetic brake is slided and is threaded onto on the above-mentioned screw rod, it is characterized in that: all coaxial package has guide pin bushing on the bonnet of electromagnetic brake and the screw rod between the gusset piece, all slip cap is equipped with backstopping device on the guide pin bushing between bonnet and the armature, the backstopping device axial location is installed in the yoke periphery, carries out fixed gap by backstopping device between yoke and the armature and installs.
And, described backstopping device is made of front end housing, ectosome, pressing plate and the ball and the spring that are installed in the ectosome, front end housing is packaged in the ectosome front end, the conical surface that expands in the inner rear end of ectosome is shaped on, ball contact under spring action on the inner made conical surface in ectosome rear end and thus guide pin bushing are held tightly; The ectosome external cylindrical surface of backstopping device is shaped on annular groove, and backstopping device is installed in the yoke periphery by this annular groove axial location; Pressing plate adopts screw and yoke and armature fixing jointly by its both sides ear, and in the rear sleeve of this screw one positioning sleeve that contacts on facade behind the armature is housed; The pressing plate front end is shaped on the coaxial boss that is nested in the ectosome rear end and axially contacts ball.
And, at the both ends of described guide pin bushing jump ring is installed all.
Advantage of the present invention and good effect are:
1. this self-adjusting brake 3-phase asynchronous motor, between the yoke of its electromagnetic brake and the armature by around the uniform backstopping device of symmetry and on positioning sleeve carry out fixed gap and fix, when friction plate produces wearing and tearing, under the thrust of main spring, yoke and armature can be unidirectional mobile to the gusset piece direction simultaneously on long bolt, thereby realize tracking adjustment, need not manually regulate, thereby reduce the maintenance maintenance expense armature and friction plate gap.
2. self-adjusting brake 3-phase asynchronous motor scientific structure design of the present invention is reasonable, in the braking of motor frequent starting, electromagnetic brake changes the motor user mode with the wearing and tearing of friction plate, thereby realize to guarantee electric system reliable efficient operation of long-term safety under artificial adjustment state, in use improve the security performance of motor greatly, also have compact conformation simultaneously, be easy to processing, advantages such as cost is low, and is good in economic efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is that the B-B of Fig. 2 is to cutaway view (omission motor portion);
Fig. 4 is the C portion enlarged drawing of Fig. 3;
Fig. 5 is that the D-D of Fig. 4 is to cutaway view;
Fig. 6 is the A portion enlarged drawing of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
A kind of self-adjusting brake 3-phase asynchronous motor is made of motor 1 and electromagnetic brake 2 two parts.Wherein, electromagnetic brake is made of bonnet 10, yoke 9, magnet exciting coil 8, armature 6, gusset piece 4, friction plate 5, spline housing 3, main spring 11, little spring 7.Install by the uniform long bolt 12 of periphery between bonnet, gusset piece and the motor and install.Friction plate connects with the motor shaft (not shown) by spline housing.The armature periphery is slided and is threaded onto on the above-mentioned long bolt.
Innovation part of the present invention is: all coaxial package has guide pin bushing 13 on the bonnet of electromagnetic brake and the screw rod between the gusset piece, all slip cap is equipped with backstopping device on the guide pin bushing between bonnet and the armature, guide pin bushing can play the supporting role to backstopping device, and it is smooth steady to guarantee that backstopping device moves.The backstopping device axial location is installed in the yoke periphery, carries out fixed gap by backstopping device between yoke and the armature and installs.
The concrete structure of backstopping device is: by front end housing 14, ectosome 16, pressing plate 19 and be installed on the ball 17 of the radial arrangement in the ectosome and the spring 15 of coaxial package constitutes.Front end housing is packaged in the ectosome front end.The conical surface that expands in the inner rear end of ectosome is shaped on, ball contact under spring action on the inner made conical surface in ectosome rear end and thus guide pin bushing are held tightly.The ectosome external cylindrical surface of backstopping device is shaped on annular groove, and backstopping device is installed in the yoke periphery by this annular groove axial location.Pressing plate adopts screw 21 fixing jointly with yoke and armature by its both sides ear, and in the rear sleeve of this screw one positioning sleeve 22 that contacts on armature rear side facade is housed, and by this positioning sleeve the gap between armature and the yoke is positioned.The pressing plate front end is shaped on the coaxial boss 18 that is nested in the ectosome rear end and axially contacts ball.Only at pressing plate forward when side shifting and roof pressure ball, the ball in the backstopping device just can loosen the holding tightly of guide pin bushing, thereby realizes unidirectional moving.In the rear end of brake and the both ends of the guide pin bushing between the bonnet jump ring 20 is installed, preventing coming off of in installation process backstopping device, the convenient installation, the backstopping device structural design has simple compactness among the present invention, is convenient to advantages such as processing, installation and use.
Operation principle of the present invention is:
At the motor frequent starting, in the braking procedure, the friction plate of electromagnetic brake will produce wearing and tearing, the stroke of armature is increased, owing to install for fixed gap between yoke among the present invention and the armature, can guarantee to remain primary clearance between yoke and the armature, and under the effect of main spring, yoke and armature are subjected to the axial motive force to the friction plate direction jointly, under the effect of this axial motive force, yoke and armature move to the friction plate direction jointly, and guarantee the unidirectional mobile of armature and yoke by backstopping device, finally realize the real-time tracking adjusting, and then guarantee the electric motor system long-term safety, reliably, efficient operation.
Claims (3)
1. self-adjusting brake 3-phase asynchronous motor, constitute by motor and electromagnetic brake, electromagnetic brake is by bonnet, yoke, magnet exciting coil, armature, gusset piece, friction plate, spline housing, main spring, little spring constitutes, friction plate connects with motor shaft by spline housing, the bonnet of electromagnetic brake, gusset piece and motor axially install fixing by the long bolt of periphery, the armature periphery of electromagnetic brake is slided and is threaded onto on the above-mentioned screw rod, it is characterized in that: all coaxial package has guide pin bushing on the bonnet of electromagnetic brake and the screw rod between the gusset piece, all slip cap is equipped with backstopping device on the guide pin bushing between bonnet and the armature, the backstopping device axial location is installed in the yoke periphery, carries out fixed gap by backstopping device between yoke and the armature and installs.
2. self-adjusting brake 3-phase asynchronous motor according to claim 1, it is characterized in that: described backstopping device is made of front end housing, ectosome, pressing plate and the ball and the spring that are installed in the ectosome, front end housing is packaged in the ectosome front end, the conical surface that expands in the inner rear end of ectosome is shaped on, ball contact under spring action on the inner made conical surface in ectosome rear end and thus guide pin bushing are held tightly; The ectosome external cylindrical surface of backstopping device is shaped on annular groove, and backstopping device is installed in the yoke periphery by this annular groove axial location; Pressing plate adopts screw and yoke and armature fixing jointly by its both sides ear, and in the rear sleeve of this screw one positioning sleeve that contacts on facade behind the armature is housed; The pressing plate front end is shaped on the coaxial boss that is nested in the ectosome rear end and axially contacts ball.
3. self-adjusting brake 3-phase asynchronous motor according to claim 1 is characterized in that: the both ends at described guide pin bushing all are equipped with jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100695461A CN101599678A (en) | 2009-07-03 | 2009-07-03 | Self-adjusting brake 3-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100695461A CN101599678A (en) | 2009-07-03 | 2009-07-03 | Self-adjusting brake 3-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101599678A true CN101599678A (en) | 2009-12-09 |
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ID=41420978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100695461A Pending CN101599678A (en) | 2009-07-03 | 2009-07-03 | Self-adjusting brake 3-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101599678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961179A (en) * | 2015-12-15 | 2017-07-18 | 丰田自动车株式会社 | Motor with electromagnetic brake |
| CN117811278A (en) * | 2024-02-29 | 2024-04-02 | 冈田精机(常州)有限公司 | Brake protector for asynchronous motor |
-
2009
- 2009-07-03 CN CNA2009100695461A patent/CN101599678A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961179A (en) * | 2015-12-15 | 2017-07-18 | 丰田自动车株式会社 | Motor with electromagnetic brake |
| CN106961179B (en) * | 2015-12-15 | 2019-05-28 | 丰田自动车株式会社 | Motor with electromagnetic brake |
| CN117811278A (en) * | 2024-02-29 | 2024-04-02 | 冈田精机(常州)有限公司 | Brake protector for asynchronous motor |
| CN117811278B (en) * | 2024-02-29 | 2024-05-17 | 冈田精机(常州)有限公司 | Brake protector for asynchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091209 |