CN208503313U - A kind of electricity loss brake - Google Patents
A kind of electricity loss brake Download PDFInfo
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- CN208503313U CN208503313U CN201821090037.8U CN201821090037U CN208503313U CN 208503313 U CN208503313 U CN 208503313U CN 201821090037 U CN201821090037 U CN 201821090037U CN 208503313 U CN208503313 U CN 208503313U
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- iron core
- magnetic conduction
- permanent magnet
- conduction casing
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Abstract
The utility model relates to a kind of electricity loss brakes, including magnetic conduction casing, permanent magnet, iron core, coil and armature, iron core is embedded in the inner groovy of magnetic conduction casing, and there are air gaps for the internal perisporium of the inner groovy of the periphery and magnetic conduction casing of iron core, mounted permanent magnet is organized between the slot bottom of the inner groovy at the embedded end and magnetic conduction casing of iron core, permanent magnet just makes the respective end of magnetic conduction casing and iron core form the magnetic force end for attracting armature, there are brake clearance between the magnetic force end and armature, group sets the gap adjustment module of matching brake clearance adjustment in iron core；Coil is wrapped in iron core, and coil generates the magnetic field identical or opposite with permanent magnet field direction after being powered.Armature is adsorbed on magnetic conduction casing and armature using the magnetic force of permanent magnet and generates frictional force by the utility model, to reach braking effect；, it can be achieved that automatically controlled release when coil generates the magnetic field opposite with permanent magnet after being powered；Simple structure, small size, easy installation, brake clearance are stablized, and braking moment is big, long service life.
Description
Technical field
The utility model relates to motor or the control technical group field of electromechanical equipment, refers in particular to built-in magneto suction and put control
The electricity loss brake of system.
Background technique
Current electricity loss brake is found to have following problems during production practices: volume is big, and power consumption is high, reaction
Slowly, the disadvantages of brake force is small, at the same it is also more troublesome when many electricity loss brake assembly, need experienced worker accurate
Brake clearance is adjusted, installation screw then could be locked.Often since the experience of worker is insufficient, adjustment brake clearance is not right, leads
Cause misfunctioning of brake.In addition, the brake after assembling is possible in use because of originals such as vibration, lock screw loosen
Cause, brake clearance become smaller cause brake(-holder) block be powered when with magnetic yoke it is inseparable or brake clearance becomes larger cause brake(-holder) block breaking
It can not be attracted when electric, final misfunctioning of brake.Or when motor over-assemble is at brake motor, since motor shaft itself can
There is axial float, will lead to brake clearance can change with the movement of motor shaft, under serious situation also as above-mentioned
The reason of lead to misfunctioning of brake or even the failure of whole brake motor, problem is than more serious.Therefore, existing electricity loss brake because
For design defect, there is bigger security risks.
Summary of the invention
The purpose of the utility model is to overcome the defect of the prior art, it is simple to provide a kind of structure, small in size, brake force
Square is big, and performance is stablized, and consistency is good, and low energy consumption, long service life, can linearly adjust braking moment, rapid reaction, and install
It is convenient, a kind of not easy to make mistakes, the constant Self-held gap electricity loss brake of permanent retention brake clearance.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of electricity loss brake comprising magnetic conduction casing, permanent magnet, iron core, coil and armature, magnetic conduction casing have indent
Slot, iron core are embedded in the inner groovy of magnetic conduction casing, and there are gas for the internal perisporium of the inner groovy of the periphery and magnetic conduction casing of iron core
Gap, organizes mounted permanent magnet between the slot bottom of the inner groovy at the embedded end and magnetic conduction casing of iron core, two magnetic poles of permanent magnet respectively with lead
Magnetic shell body and iron core stick together, and the respective end of magnetic conduction casing and iron core is just made to form the magnetic force end for attracting armature, the magnetic force end
There are brake clearance between armature, group sets the gap adjustment module of matching brake clearance adjustment in iron core；The coil winding
In iron core, coil generates the magnetic field identical or opposite with permanent magnet field direction after being powered.
Above scheme is further: the armature passes through leaf spring connecting flange, the axis hole and magnetic conduction casing and iron core of flange
The mesoporous opened up is coaxial；It is equipped with support top step in the iron core, adjustment module in gap is embedded between the support top step and flange.
Above scheme is further: the gap adjustment module includes bearing, adjustment gasket and gap adjustment ring, bearing
Recline the support top step assembling of iron core, adjusts gasket and gap adjustment ring and is sequentially overlapped in the other end of bearing, flange limitation
The outer end of gap adjustment ring.
Above scheme is further: the corresponding site of the magnetic conduction casing and/or iron core offers scarfing slot, for permanent magnetism
Iron location and installation.
Above scheme is further: the permanent magnet is rare earth strong magnets, and shape is entire circular or muti-piece
Shape is distributed in circular ring shape, and the thickness direction saturation of permanent magnet magnetizes.
Above scheme is further: the gap adjustment ring and flange are separate structure or integral structure.
Above scheme is further: the magnetic conduction casing and iron core are formed by the filling that magnetic force end is equipped with great friction coefficient
Object, filler are embedded between the internal perisporium of inner groovy port and the periphery of iron core of magnetic conduction casing.
Above scheme is further: the filler is lining or rubber.
Permanent magnet is loaded in magnetic conduction casing by the utility model, one of magnetic pole and magnetic conduction casing close-coupled, iron core
It is placed on another magnetic pole, the armature as brake(-holder) block then passes through magnetic conduction casing and iron core and links up the two poles of the earth of permanent magnet, shape
At closed magnetic circuit, armature is adsorbed on magnetic conduction casing and armature and generates frictional force by the powerful magnetic force of permanent magnet, to realize system
Dynamic torque (power), reaches braking effect.And coil is placed on iron core, and the magnetic field opposite with permanent magnet is generated after being powered by permanent magnetism
Iron acts on the counteracting of the magnetic force on armature, to realize braking torque (power) automatically controlled release.When required braking torque (power) needs
When increasing, the positive and negative anodes of coil power are exchanged, the magnetic field that at this moment coil generates is as the magnetic direction of permanent magnet, and such one
Come, the combination field of coil and permanent magnet acts on the braking torque (power) generated on armature and achievees the effect that double, thus real
Existing ultra-small volume, small-power reach the brake efficiency of super large braking torque (power).Gap is equipped in core interior and adjusts module, is led to
Brake clearance can be accurately adjusted to predetermined size by crossing gap adjustment module, and brake clearance is stablized, and reaches electricity loss brake forever
Correct brake clearance size is far kept, ensure that the safe and reliable work of electricity loss brake.
Detailed description of the invention:
Attached drawing 1 is the utility model schematic structural diagram of the first embodiment；
Attached drawing 2 is the utility model secondly example structure schematic diagram；
Attached drawing 3 is the utility model thirdly example structure schematic diagram；
Attached drawing 4 is its four example structure schematic diagram of the utility model.
Specific embodiment:
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Shown in refering to fig. 1 ~ 4, the utility model is in relation to a kind of electricity loss brake comprising magnetic conduction casing 1, permanent magnet 2, iron
Core 3, coil 4 and armature 5, magnetic conduction casing 1 have inner groovy, and iron core 3 is embedded in the inner groovy of magnetic conduction casing 1, and iron core 3
There are air gaps 6 for the internal perisporium of the inner groovy of periphery and magnetic conduction casing 1.The slot of the inner groovy at the embedded end and magnetic conduction casing 1 of iron core 3
Mounted permanent magnet 2 is organized between bottom, two magnetic poles of permanent magnet 2 are sticked together with magnetic conduction casing 1 and iron core 3 respectively, just make magnetic conduction casing 1
The magnetic force end for attracting armature 5 is formed with the respective end of iron core 3, there are brake clearances 7 between the magnetic force end and armature 5.In iron core 3
Group sets the gap adjustment module that matching brake clearance 7 adjusts, and brake clearance 7 can be accurately adjusted to by adjusting module by gap
Predetermined size, brake clearance 7 are stablized, reach electricity loss brake and keep correct brake clearance size forever, ensure that power loss system
The safe and reliable work of dynamic device.The coil 4 is wrapped in iron core 3, and coil 4 generates and permanent magnet field direction phase after being powered
Same or opposite magnetic field.
Utility model works principle is as follows: the magnetic field that permanent magnet 2 generates passes through magnetic conduction casing 1 and iron core 3, can be in magnetic conduction
The open end of shell 1 and iron core 3 forms magnetic force end, generates attraction to adsorb or pull armature 5, armature 5 is made to be adsorbed on magnetic conduction
Drag friction is formed on shell 1 and iron core 3 or with magnetic conduction casing 1 and iron core 3, reaches braking or efficacy of adsorption.Coil 4 is wrapped in
On iron core 3, energization can produce a magnetic field, when the magnetic field is opposite with the magnetic direction that permanent magnet 2 generates, the magnetic force of electric current generation
The magnetic force that permanent magnet 2 attracts armature 5 can be offset, automatically controlled release control is reached, and when the magnetic field side in the magnetic field and the generation of permanent magnet 2
To it is identical when, the magnetic force and the magnetic force of permanent magnet 2 that electric current generates attract armature 5 jointly, reach and increase adsorption effect or increase system
Dynamic effect.
Shown in Fig. 1 ~ 4, in the present embodiment, for the armature 5 by 9 connecting flange 10 of leaf spring, leaf spring 9 is using high resiliency material
The plate shape spring of material, can produce certain elastic force and overlays on flange 10 by armature 5 after installation, guarantee brake clearance and flange shaft
The verticality in hole.The axis hole of flange 10 and the mesoporous that magnetic conduction casing 1 and iron core 3 are opened up are coaxial, ease of assembly, the operation is stable,
Reliably.It is equipped with support top step 31 in the iron core 3, adjustment module in gap is embedded between the support top step 31 and flange 10.It is described
Gap adjustment module includes bearing 81, adjustment gasket 82 and gap adjustment ring 83, and bearing 81 reclines the support top step 31 of iron core 3
Assembling, adjusts gasket 82 and gap adjustment ring 83 is sequentially overlapped in the other end of bearing 81, and flange 10 limits gap adjustment ring
83 outer end.Fig. 1, shown in 3, gap adjustment ring 83 and flange 10 are separate structures, then separate machined is being combined,
10 support top gap adjustment ring 83 of flange；Certainly can also be as shown in Figure 2,4, gap adjustment ring 83 and flange 10 are integral structures, one
Body processing, equally also reaches gap adjustment group reload request.In the present embodiment, bearing 81 is thrust ball bearing with flat seat, plays support top
While adjusting gap, it is additionally favorable for set axis assembling, stable rotation work reduces bounce, it is ensured that electricity loss brake is safe and reliable
Work；Noise and friction are reduced simultaneously, is prolonged the service life.Bearing 81, adjustment gasket 82 and gap tune are equipped with inside iron core 3
The domain 83, adjustment gasket 82 are placed between bearing 81 and gap adjustment ring 83, and the quantity by changing placement adjustment gasket 82 can
Brake clearance 7 is accurately adjusted to predetermined size range.Due to the branch for having bearing 81, adjusting gasket 82 and gap adjustment ring 83
Support, by armature 5(, that is, brake(-holder) block), the brake(-holder) block that forms of leaf spring 9 and flange 10 combine forever with the groups such as magnetic conduction casing 1 and iron core 3
At magnetic yoke keep as defined in brake clearance 7 will not become smaller, in addition can pass through the limit such as circlip except brake or Step Shaft
Position measure guarantees that brake clearance 7 will not become larger, is so achieved that electricity loss brake keeps correct brake clearance forever
7 sizes ensure that the safe and reliable work of electricity loss brake, and it is big to reach braking moment, and performance is stablized, and consistency is good, energy consumption
It is low, the effect of long service life can linearly adjust braking moment, rapid reaction.
Shown in Fig. 1 ~ 4, in the present embodiment, the corresponding site of the magnetic conduction casing 1 and/or iron core 3 offers scarfing slot, with
For 2 location and installation of permanent magnet, while the magnetic line of force of permanent magnet 2 being made more sufficiently to be used, brake structural is also stronger.Figure
In, N pole-face and the magnetic conduction casing 1 of permanent magnet 2 come into full contact with, iron core 3 be inserted into magnetic conduction casing one end and permanent magnet 2 another
S pole-face, which is formed, to be close to.The permanent magnet 2 is preferably rare earth strong magnets, and shape is entire circular or lumpy in circle
The thickness direction saturation of annular spread, permanent magnet 2 magnetizes.
Attached drawing 3 is further designed on the basis of Fig. 1, is the reality designed for totally-enclosed machine or automatic control equipment
Structural schematic diagram is applied, at this moment magnetic conduction casing 1, iron core 3, armature 5 and flange 10 are embedded in a shell, it is wrapped up by the shell, with
Meet corresponding occasion to use.
Shown in Fig. 1 ~ 4, in the present embodiment, the magnetic conduction casing 1 and iron core 3, which are formed by magnetic force end and are also provided with height, to rub
The filler 11 of coefficient is wiped, filler 11 is arranged according to actual needs, and filler 11 is embedded in the inner groovy port of magnetic conduction casing 1
Internal perisporium and iron core 3 periphery between.Filler 11 is preferred for lining or rubber, the outer end face and magnetic conduction of filler 11
The attraction end face of shell 1 and iron core 3 is concordant.In use, filler 11 plays the role of increasing friction, braking effect is improved.
Two pole-faces of the permanent magnet 2 of the utility model contact magnetic conduction casing 1 and iron core 3 respectively, due to magnetic conduction casing 1 and iron
Air gap 6 is equipped between core 3, and the magnetic conductivity of air is bordering on zero, is similar to open circuit, then magnetic conduction casing 1 and iron core 3 respectively will forever
The two poles of the earth of magnet 2 have extended in the plane of brake clearance 7, generate attraction to armature 5, armature 5 as brake(-holder) block then phase
When the bridge between magnetic conduction casing 1 and iron core 3, the two poles of the earth of permanent magnet 2 are linked up, form closed magnetic circuit, while permanent magnetism
Armature 5 is adsorbed in the magnetic yoke that magnetic conduction casing 1 and iron core 3 form and generates frictional force by the powerful magnetic force of iron 2, to realize braking
Torque (power).4 sets of coil on iron core 3, when brake needs to discharge, it generates the magnetic opposite with permanent magnet 2 upon power-up
Field will act at the magnetic force on armature 5 and offset, to realize the automatically controlled release of braking torque (power).The magnetic field strength of coil 4 with
It is directly proportional by current strength therein, that is to say, that can be by controlling the size of its supply current come Linear Control to permanent magnetism
The counteracting force of iron 2.When electric current is gradually increased from zero, and the magnetic field strength of coil 4 is made just to be equal to the magnetic field strength of permanent magnet 2,
5 stress of armature is equal to zero, is retracted by leaf spring 9 and is attached to flange 10, brake discharges completely, and flange 10 carries out completely with moving armature 5
No frictional resistance rotation, without any noise.And upon loss of power, coil 4 powers off, and the powerful magnetic force of permanent magnet 2 adsorbs armature 5
Frictional force is generated in the magnetic yoke that magnetic conduction casing 1 and iron core 3 form, to realize braking torque (power), reaches braking effect.This
Utility model can also amplify: when required braking torque (power) requires to increase, exchange the positive and negative anodes of 4 power supply of coil, at this moment line
The magnetic field that circle 4 generates is as the magnetic direction of permanent magnet 2, in this way, which coil 4 plays the role of excitation, magnetic field and permanent magnetism
On armature 5, the braking torque (power) of generation achievees the effect that double the force action in 2 magnetic field of iron, thus realize ultra-small volume,
Small-power reaches the brake efficiency of super large braking torque (power).
Embodiment is combined to elaborate the utility model above, only the technical concept to illustrate the utility model
And feature can not be with this its object is to allow person skilled in the art to understand the content of the utility model and be implemented
The restriction protection scope of the utility model, therefore all equivalent change or modifications substantially done according to the spirit of the present invention, are all answered
Cover within the protection scope of the present utility model.
Claims (8)
1. a kind of electricity loss brake, it is characterised in that: including magnetic conduction casing (1), permanent magnet (2), iron core (3), coil (4) and rank
Iron (5), magnetic conduction casing (1) have inner groovy, and iron core (3) is embedded in the inner groovy of magnetic conduction casing (1), and the week of iron core (3)
There are air gap (6), the embedded end of iron core (3) and the indents of magnetic conduction casing (1) for the internal perisporium of edge and the inner groovy of magnetic conduction casing (1)
Mounted permanent magnet (2) are organized between the slot bottom of slot, two magnetic poles of permanent magnet (2) are attached to one with magnetic conduction casing (1) and iron core (3) respectively
It rises, the respective end of magnetic conduction casing (1) and iron core (3) is just made to form the magnetic force end for attracting armature (5), the magnetic force end and armature (5)
Between there are brake clearance (7), interior group of iron core (3) set matching brake clearance (7) adjustment gap adjustment module；The coil
(4) it is wrapped in iron core (3), coil (4) generates the magnetic field identical or opposite with permanent magnet field direction after being powered.
2. a kind of electricity loss brake according to claim 1, it is characterised in that: the armature (5) is connected by leaf spring (9)
Flange (10), the mesoporous that axis hole and magnetic conduction casing (1) and the iron core (3) of flange (10) are opened up are coaxial；It is set in the iron core (3)
There are support top step (31), adjustment module in gap is embedded between the support top step (31) and flange (10).
3. a kind of electricity loss brake according to claim 1 or 2, it is characterised in that: the gap adjusts module and includes
Bearing (81), adjustment gasket (82) and gap adjustment ring (83), bearing (81) recline support top step (31) assembling of iron core (3),
Adjustment gasket (82) and gap adjustment ring (83) are sequentially overlapped in the other end of bearing (81), and flange (10) limits gap adjustment
The outer end of ring (83).
4. a kind of electricity loss brake according to claim 1, it is characterised in that: the magnetic conduction casing (1) and/or iron core
(3) corresponding site offers scarfing slot, for permanent magnet (2) location and installation.
5. a kind of electricity loss brake according to claim 1 or 4, it is characterised in that: the permanent magnet (2) is rare earth strength
Magnet, shape are that entire circular or lumpy is distributed in circular ring shape, and the thickness direction saturation of permanent magnet (2) magnetizes.
6. a kind of electricity loss brake according to claim 3, it is characterised in that: the gap adjustment ring (83) and flange
It (10) is separate structure or integral structure.
7. a kind of electricity loss brake according to claim 1, it is characterised in that: the magnetic conduction casing (1) and iron core (3) institute
The magnetic force end of formation is equipped with the filler (11) of great friction coefficient, and filler (11) is embedded at the inner groovy end of magnetic conduction casing (1)
Between the internal perisporium of mouth and the periphery of iron core (3).
8. a kind of electricity loss brake according to claim 7, it is characterised in that: the filler (11) is lining or rubber
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821090037.8U CN208503313U (en) | 2018-07-11 | 2018-07-11 | A kind of electricity loss brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821090037.8U CN208503313U (en) | 2018-07-11 | 2018-07-11 | A kind of electricity loss brake |
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| Publication Number | Publication Date |
|---|---|
| CN208503313U true CN208503313U (en) | 2019-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821090037.8U Active CN208503313U (en) | 2018-07-11 | 2018-07-11 | A kind of electricity loss brake |
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| Country | Link |
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| CN (1) | CN208503313U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735869A (en) * | 2019-10-21 | 2020-01-31 | 诸暨市迅捷离合器有限公司 | Permanent-magnet power-off brake for stabilizing power supply |
| CN111396470A (en) * | 2020-04-22 | 2020-07-10 | 深圳市零差云控科技有限公司 | Permanent magnet brake with failure detection function |
| WO2021031333A1 (en) * | 2019-08-20 | 2021-02-25 | 南京埃斯顿自动化股份有限公司 | Permanent magnet brake for permanent magnet electric motor, and permanent magnet brake electric motor |
-
2018
- 2018-07-11 CN CN201821090037.8U patent/CN208503313U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031333A1 (en) * | 2019-08-20 | 2021-02-25 | 南京埃斯顿自动化股份有限公司 | Permanent magnet brake for permanent magnet electric motor, and permanent magnet brake electric motor |
| CN110735869A (en) * | 2019-10-21 | 2020-01-31 | 诸暨市迅捷离合器有限公司 | Permanent-magnet power-off brake for stabilizing power supply |
| CN110735869B (en) * | 2019-10-21 | 2021-01-08 | 诸暨市迅捷离合器有限公司 | Permanent-magnet power-off brake for stabilizing power supply |
| CN111396470A (en) * | 2020-04-22 | 2020-07-10 | 深圳市零差云控科技有限公司 | Permanent magnet brake with failure detection function |
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