CN208890563U - A kind of brake structure of motor - Google Patents
A kind of brake structure of motor Download PDFInfo
- Publication number
- CN208890563U CN208890563U CN201821849342.0U CN201821849342U CN208890563U CN 208890563 U CN208890563 U CN 208890563U CN 201821849342 U CN201821849342 U CN 201821849342U CN 208890563 U CN208890563 U CN 208890563U
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- brake disc
- brake
- rotor
- cavity
- motor
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The utility model provides a kind of brake structure of motor, belongs to technical field of motors.It solves the problems, such as that existing motor braking precision is lower.The brake structure of this motor, including casing, the rotor being rotationally connected in casing, the brake disc one for being fixedly arranged on rotor one end, the brake disc two opposite with brake disc one and for drive brake disc two and brake disc one against electromagnetic drive mechanism, the brake disc one and brake disc two against end face be provided with the equally distributed limiting slots of axial line of several circular brake discs one, the brake disc two and brake disc one against end face be equipped with several with the one-to-one spacing block set of limiting slot, the spacing block set can be embedded in limiting slot.For the utility model in motor braking, brake disc one and brake disc two cooperate precision high, are not susceptible to slide relatively, the braking effect of motor is more preferable.
Description
Technical field
The utility model belongs to technical field of motors, is related to a kind of brake structure of motor.
Background technique
Motor has a variety of duty types such as S1~S10, and such as in S5 operating mode, motor is needed by series of identical
Duty cycle operation, each period include one starting time, one section of constant load runing time, one section of quick electric braking when
Between and one section it is disconnected can rundown time.In this mode, the rotor of motor needs frequent starting and emergency stop, however in emergency stop process
In, rotor can still continue to rotate certain angle under the action of inertia, and it is lower so as to cause the precision of motor, it is unable to satisfy
Requirement of the people for precision.
In view of the above-mentioned problems, Chinese patent application (application number: 201820409082.9) discloses a kind of motor braking dress
It sets, including columnar motor case, motor case left side is equipped with circular hole with one heart, and one end of rotor is protruded into circular hole simultaneously
Fixed circular ring shape brake block is additionally provided with the top pillar for cooperating with circular ring shape brake block in circular hole, by push-pull electromagnet with
Compressed spring cooperation, top pillar can after a loss of power under the action of compressed spring with circular ring shape brake block against with realize motor turn
The braking of son.However, since brake block and the face that top pillar mutually reclines are plane, when rotor inertia is larger, still without
Method guarantees the timely stopping of rotor, and especially after long-term use, the end face of brake block and top pillar cooperation can gradually darkening
It is sliding, cause frictional force between the two to reduce, locking effect can reduce, so that further resulting in the precision of motor reduces.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of braking knot of motor
Structure, the technical problem to be solved by the utility model is to how to improve the brake accuracy of motor.
The purpose of this utility model can be realized by the following technical scheme: a kind of brake structure of motor, including casing,
The rotor being rotationally connected in casing, the brake disc one, the brake disc two opposite with brake disc one and the use that are fixedly arranged on rotor one end
In driving brake disc two and brake disc one against electromagnetic drive mechanism, which is characterized in that the brake disc one and brake disc two
Against end face be provided with the equally distributed limiting slots of axial line of several circular brake discs one, the brake disc two and brake disc one
Against end face be equipped with several with the one-to-one spacing block set of limiting slot, the spacing block set can be embedded in limiting slot.
Rotor is rotationally connected in the casing of motor, and rotor can realize rotation with the stator cooperation being set in casing,
Brake disc one is fixedly arranged on one end of rotor, and brake disc two and brake disc one are located on same axis and brake disc two will not be around its axis
Heart rotation, can only be axially moveable, when the rotor is turning, certain gap be kept between brake disc two and brake disc one, works as electricity
When machine needs to stop, electromagnetic drive mechanism pushes brake disc two and brake disc one against to make brake disc one and and brake disc
The rotor of one connection stops operating.Being respectively equipped in brake disc one and brake disc two being capable of mutually matched limiting slot and limit convex
Block, enable brake disc one and brake disc two against when be mutually clamped to form one, to avoid one relative brake disk of brake disc
Two rotations, realize the accurate braking of rotor, to improve the brake accuracy of motor.
In the brake structure of above-mentioned motor, the brake disc one is in a circular table shape, and the limiting slot is opened in braking
On the conical surface of disk one, the brake disc two is in the form of annular discs, and the brake disc two is towards being provided with groove on the end face of brake disc one, institute
State that groove is tapered, the spacing block set is respectively positioned on the inner wall of groove.Brake disc one is tapered, opens up in brake disc two recessed
Slot keeps brake disc one tapered, and the fitting for realizing the two in the groove of brake disc two is embedded in convenient for brake disc one, improves brake disc
One and brake disc two cooperation precision, and compare plane contact, the abutment face of brake disc one and brake disc two is tapered significantly
Contact area between the two is improved, keeps brake disc two more preferable to the braking effect of brake disc one.
In the brake structure of above-mentioned motor, the limiting slot is arranged along the generatrix direction of brake disc one, the limit
Convex block is arranged along the generatrix direction of groove.The Impact direction when abutment face of spacing block set and limiting slot is perpendicular to braking in this way,
Keep the braking effect of rotor more preferable.
In the brake structure of above-mentioned motor, the limiting slot is in flared, and the width of the spacing block set is along bottom
It is sequentially reduced to the direction at top.In this way, when brake disc one and brake disc two are bonded, convenient in spacing block set insertion limiting slot.
In the brake structure of above-mentioned motor, one end of the casing is fixed with the braking cover with cavity, and described turn
One end of son passes through casing and protrudes into cavity, and the brake disc one and brake disc two are respectively positioned in cavity, the electromagnetic drive machine
Structure be it is multiple, the electromagnetic drive mechanism is fixedly arranged on the cavity inner wall far from casing one end, the electromagnetic drive mechanism ring
Axial line around drive disk two is uniformly distributed.Casing and braking cover use split type connection, convenient for the installation of brake structure；Electromagnetism
The annular of driving structure, which is uniformly arranged, makes two stress of brake disc more evenly, to guarantee the braking effect to brake disc one.
In the brake structure of above-mentioned motor, the electromagnetic drive mechanism includes drive rod, is installed on drive rod
Magnetic plate and two are located at the coil of magnetic plate two sides, the cavity be equipped on the inner wall of electromagnetic drive mechanism be provided with it is several
With the one-to-one blind hole of drive rod, the blind hole is interior to be equipped with spring, and one end of the drive rod and brake disc two are connected, described
The other end of drive rod protrude into blind hole and spring against.In this way, when power is off, drive rod still can be under the action of the spring
Push brake disc two and brake disc one against realizing the braking of rotor.
In the brake structure of above-mentioned motor, the cavity is cylindric in extending along rotor axial, the cavity
Side wall is equipped with several guide grooves extended along rotor axial, and the side wall in the brake disc two is equipped with several and guide groove one
One corresponding guide pad, the guide pad insertion guide groove is interior and can slide along guide groove.Pass through guide pad and guide groove
Cooperation ensure that brake disc two along axial mobile accuracy, and improves the stability of brake disc two, avoid brake disc two with
Brake disc one rotates, and braking effect is more preferable.
In the brake structure of above-mentioned motor, the axial line in the brake disc two also along brake disc two is provided with through-hole.
The setting of through-hole enables the air of two two sides of brake disc to circulate by through-hole, to guarantee the gas of two sides when brake disc two is mobile
Press it is identical, make brake disc two sliding it is more smooth.
Compared with prior art, the utility model has the advantage that
1, it is respectively equipped with mutually matched limiting slot and spacing block set in the brake disc one and brake disc two of the utility model,
Make brake disc one and brake disc two against when both avoid opposite sliding, braking effect is more preferable, and the brake accuracy of motor is higher.
Both 2, brake disc one and brake disc two are fit and abutted by the conical surface, not only increase contact area, but also can guarantee
Cooperation precision.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of brake disc one；
Fig. 3 is the structural schematic diagram of brake disc two；
Fig. 4 is the enlarged drawing in the portion a in Fig. 1.
In figure, 11, casing；12, rotor；13, stator；14, nut；2, braking cover；21, cavity；22, blind hole；23, it is oriented to
Slot；3, brake disc one；31, mounting hole；32, limiting slot；4, brake disc two；41, groove；42, spacing block set；43, guide pad；
44, through-hole；5, electromagnetic drive mechanism；51, drive rod；52, coil；53, magnetic plate；6, spring.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
This motor includes the casing 11 of tubular, and the inner wall of casing 11 is installed with stator 13, and rotor 12 is arranged in stator 13
And the both ends of the surface of the both ends of rotor 12 and casing 11 are rotatablely connected by bearing.
As shown in Figure 1, the brake structure of motor includes braking cover 2, brake disc 1, brake disc 24 and is used to drive braking
Two mobile electromagnetic drive mechanisms 5.Braking cover 2 is in tubular open at one end, and one end of 2 opening of braking cover and casing 11 are wherein
One end is connected, and one end of rotor 12 passes through braking cover 2 and protrudes into the cavity 21 of braking cover 2, and rotor 12 protrudes into cavity 21
One end is installed with brake disc 1, and the brake disc two 4 opposite with brake disc 1 is also slidably connected in cavity 21, and cavity 21 is separate
The inner wall of 11 one end of casing is equipped with several electromagnetic drive mechanisms 5, and electromagnetic drive mechanism 5 includes drive rod 51 and two interval settings
Coil 52, magnetic plate 53 is installed on drive rod 51, drive rod 51 is along the axial direction setting of rotor 12, and two coils 52 are along drive rod
51 axially spaced-apart is arranged and is located at the two sides of magnetic plate 53, if being also provided with simultaneously on inner wall of the cavity 21 far from 11 one end of casing
It is dry with the one-to-one blind hole 22 of electromagnetic drive mechanism 5, be equipped with spring 6 in blind hole 22, it is blind that this is protruded into one end of drive rod 51
With spring 6 against the other end and brake disc 24 of drive rod 51 are connected, can by controlling the energization of two coils 52 in hole 22
Move brake disc 24 axially back and forth along it, enable brake disc 24 fit together with brake disc 1 or with brake disc 1
Separation, to realize the locking and unlock to rotor 12.
Specifically, as shown in Figure 1, Figure 2, Figure 3 shows, brake disc 1 and brake disc 24 are located on same axis, brake disc 1
It is in a circular table shape, it is provided with mounting hole 31 along axial line in brake disc 1, brake disc 1 is sheathed on rotor 12 by mounting hole 31
And cooperated by pin key and fixed, the end of rotor 12 is threadedly coupled with nut 14.Brake disc 24 is in the form of annular discs, 24 court of brake disc
It is provided with the groove 41 being recessed inwardly on the end face of brake disc 1, groove 41 is in the conical surface of brake disc 1 to the cone being adapted to
Shape.The main view of circular cone or rotary table is isosceles triangle or isosceles trapezoid, and the waist of the isosceles triangle or isosceles trapezoid is circular cone
Or the bus of rotary table is provided with several to improve the braking effect of brake disc 1 and brake disc 24 on the conical surface of brake disc 1
It is uniformly distributed around the axial line of brake disc 1 and along the limiting slot 32 of the generatrix direction of brake disc 1 setting, brake disc 24
Groove 41 be equipped with several circular brake discs 24 axial line be uniformly distributed and along the generatrix direction of groove 41 setting limit
Convex block 42, spacing block set 42 is corresponded with limiting slot 32 and shape is identical, after fitting and abutting brake disc 1 and brake disc,
Spacing block set 42 can be embedded in the locking effect that the two is improved in limiting slot 32.Further, limiting slot 32 is in flared, limit
Direction of the width of position convex block 42 also along bottom to top is sequentially reduced, and brake disc 1 and brake disc 24 is made to be easier to cooperate.When
So, in the actual use process, 42 position of spacing block set on the limiting slot 32 and brake disc 24 in brake disc 1 can
To exchange.
As Figure 1 and Figure 4, this braking cover 2 cavity 21 be in it is cylindric and with rotor 12 concentric, the side of cavity 21
Several axially extending guide grooves 23 along rotor 12 are provided on wall, these guide grooves 23 uniformly divide around the axial line of rotor 12
Cloth, the radial section of brake disc 24 are sized to be slightly smaller than the radial section of cavity 21, and the side wall of brake disc 24 is equipped with several lead
To block 43, the quantity of guide pad 43 is identical as guide groove 23, and guide pad 43 is uniformly distributed along the circumferential direction of brake disc, and guide pad 43 divides
It Qian Ru not be slidably connected in guide groove 23 with guide groove 23, not only improve the mobile accuracy of brake disc 24, but also improve brake disc
24 stability, when 24 pairs of brake discs 1 of brake disc are braked, avoid 24 stress of brake disc excessive and with one 3 turns of brake disc
It is dynamic, to improve the precision of motor braking.
Further, the axial line in brake disc 24 also along brake disc 24 is provided with through-hole 44, makes 24 two sides of brake disc
Air can be circulated by the through-hole 44, to reduce the air drag when movement of brake disc 24, keep brake disc 24 mobile more
It is smooth.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although casing 11, rotor 12, stator 13, nut 14, braking cover 2, guide groove 23, braking is used more herein
Disk 1, limiting slot 32, brake disc 24, groove 41, spacing block set 42, guide pad 43, electromagnetic drive mechanism 5, drives mounting hole 31
The terms such as lever 51, coil 52, magnetic plate 53, but it does not exclude the possibility of using other terms.Only using these terms
It is the essence in order to be more convenient to describe and explain the utility model；Be construed as any additional limitation all and be with
What the spirit of the present invention was disagreed.
Claims (8)
1. a kind of brake structure of motor, including casing (11), the rotor (12) being rotationally connected in casing (11), it is fixedly arranged on and turns
The brake disc one (3) of sub (12) one end, with the opposite brake disc two (4) of brake disc one (3) and for drive brake disc two (4) with
Brake disc one (3) against electromagnetic drive mechanism (5), which is characterized in that the brake disc one (3) and brake disc two (4) against
End face be provided with the equally distributed limiting slots of axial line (32) of several circular brake discs one (3), the brake disc two (4) and system
Moving plate one (3) against end face be equipped with several spacing block sets (42) one-to-one with limiting slot (32), the spacing block set
(42) it can be embedded in limiting slot (32).
2. the brake structure of motor according to claim 1, which is characterized in that the brake disc one (3) is in a circular table shape, institute
It states limiting slot (32) to be opened on the conical surface of brake disc one (3), the brake disc two (4) is in the form of annular discs, the brake disc two
(4) towards being provided with groove (41) on the end face of brake disc one (3), the groove (41) is tapered, and the spacing block set (42) is equal
On the inner wall of groove (41).
3. the brake structure of motor according to claim 2, which is characterized in that the limiting slot (32) is along brake disc one
(3) generatrix direction setting, the spacing block set (42) are arranged along the generatrix direction of groove (41).
4. the brake structure of motor according to claim 1 or 2 or 3, which is characterized in that the limiting slot (32) is in flaring
The width of shape, the spacing block set (42) is sequentially reduced along the direction of bottom to top.
5. the brake structure of motor according to claim 4, which is characterized in that one end of the casing (11) is fixed with tool
There is the braking cover (2) of cavity (21), one end of the rotor (12) passes through casing (11) and protrudes into cavity (21), the brake disc
One (3) and brake disc two (4) are respectively positioned in cavity (21), and the electromagnetic drive mechanism (5) is multiple, the electromagnetic drive mechanism
(5) it is fixedly arranged on cavity (21) inner wall far from casing (11) one end, the electromagnetic drive mechanism (5) is around drive disk two
Axial line is uniformly distributed.
6. the brake structure of motor according to claim 5, which is characterized in that the electromagnetic drive mechanism (5) includes driving
Lever (51), the magnetic plate (53) being installed on drive rod (51) and two are located at the coil of magnetic plate (53) two sides
(52), the cavity (21) is several one-to-one blind with drive rod (51) equipped with being provided on the inner wall of electromagnetic drive mechanism (5)
Hole (22), the blind hole (22) is interior to be equipped with spring (6), and one end of the drive rod (51) and brake disc two (4) are connected, the drive
The other end of lever (51) protrude into blind hole (22) with spring (6) against.
7. the brake structure of motor according to claim 6, which is characterized in that the cavity (21) is in along rotor (12) axis
To the cylindric of extension, the side wall of the cavity (21) is equipped with several guide grooves (23) axially extending along rotor (12), institute
It states the side wall in brake disc two (4) and is equipped with several and guide groove (23) one-to-one guide pad (43), the guide pad
(43) insertion guide groove (23) is interior and can slide along guide groove (23).
8. the brake structure of motor according to claim 7, which is characterized in that also along braking on the brake disc two (4)
The axial line of disk two (4) is provided with through-hole (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849342.0U CN208890563U (en) | 2018-11-09 | 2018-11-09 | A kind of brake structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821849342.0U CN208890563U (en) | 2018-11-09 | 2018-11-09 | A kind of brake structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208890563U true CN208890563U (en) | 2019-05-21 |
Family
ID=66518020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821849342.0U Expired - Fee Related CN208890563U (en) | 2018-11-09 | 2018-11-09 | A kind of brake structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208890563U (en) |
-
2018
- 2018-11-09 CN CN201821849342.0U patent/CN208890563U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20191109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |